/* 
V‑Calc Website – original implementation inspired by modern SaaS landing pages.
No third‑party CSS frameworks required.
*/
:root {
  /* ── Base palette ─────────────────────────────────────────── */
  --bg0: #070B1A;
  --bg1: #0B1022;
  --card: rgba(255, 255, 255, 0.06);
  --card2: rgba(255, 255, 255, 0.032);
  --stroke: rgba(255, 255, 255, 0.14);
  --stroke2: rgba(255, 255, 255, 0.10);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.70);
  --faint: rgba(255, 255, 255, 0.55);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --radius: 16px;
  --radius2: 22px;
  --accent1: #40D2FF;
  --accent2: #8B5CFF;
  --accent3: #22C55E;
  --cta-grad: linear-gradient(135deg, rgba(75, 222, 255, 0.92), rgba(123, 109, 255, 0.88) 58%, rgba(103, 144, 255, 0.92));
  --cta-grad-hover: linear-gradient(135deg, rgba(103, 230, 255, 0.98), rgba(146, 120, 255, 0.94) 58%, rgba(116, 161, 255, 0.98));
  --cta-glass: linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.06));
  --cta-shadow: 0 14px 34px rgba(84, 116, 255, 0.24), 0 0 0 1px rgba(255, 255, 255, 0.06);
  --cta-shadow-hover: 0 20px 44px rgba(84, 116, 255, 0.34), 0 0 30px rgba(75, 222, 255, 0.14);
  --cta-focus: 0 0 0 3px rgba(75, 222, 255, 0.24);
  --btn-anim-hover-grad: linear-gradient(135deg, rgba(80, 220, 255, 1), rgba(160, 90, 255, 1));

  /* ── Semantic design tokens ───────────────────────────────── */
  --bg:        var(--bg0);
  --surface:   var(--card);
  --surface2:  var(--card2);
  --border:    var(--stroke);
  --border2:   var(--stroke2);
  --text-muted: var(--muted);
  --primary:   var(--accent1);
  --primary-2: var(--accent2);
  --success:   var(--accent3);
  --warning:   #F59E0B;
  --danger:    #EF4444;

  /* ── Typography scale ─────────────────────────────────────── */
  --fs-xs:   11px;
  --fs-sm:   13px;
  --fs-base: 15px;
  --fs-lg:   17px;
  --fs-xl:   20px;
  --fs-2xl:  24px;
  --lh-tight: 1.25;
  --lh-base:  1.6;
  --lh-loose: 1.75;

  /* ── Spacing scale (8px grid) ─────────────────────────────── */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-7: 56px;
  --space-8: 64px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 800px at 20% 5%, rgba(64, 210, 255, 0.18), transparent 60%),
    radial-gradient(900px 700px at 80% 15%, rgba(139, 92, 255, 0.16), transparent 65%),
    radial-gradient(1000px 600px at 15% 55%, rgba(139, 92, 255, 0.10), transparent 60%),
    radial-gradient(900px 600px at 85% 70%, rgba(64, 210, 255, 0.10), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  overflow-x: hidden;
}

/* Subtiles Raster/Dot‑Muster wie bei modernen SaaS/GitHub (sehr zurückhaltend) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.10) 1px, transparent 1.4px);
  background-size: 26px 26px;
  opacity: 0.08;
  -webkit-mask-image: linear-gradient(180deg, rgba(255, 255, 255, 0.90) 0%, rgba(255, 255, 255, 0.60) 60%, rgba(255, 255, 255, 0.20) 100%);
  mask-image: linear-gradient(180deg, rgba(255, 255, 255, 0.90) 0%, rgba(255, 255, 255, 0.60) 60%, rgba(255, 255, 255, 0.20) 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  opacity: 0.92;
}

.container {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.bg-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(900px 600px at 25% 20%, rgba(64, 210, 255, 0.10), transparent 60%),
    radial-gradient(900px 600px at 70% 15%, rgba(139, 92, 255, 0.09), transparent 62%),
    radial-gradient(800px 600px at 55% 70%, rgba(34, 197, 94, 0.08), transparent 62%),
    radial-gradient(700px 500px at 10% 80%, rgba(64, 210, 255, 0.07), transparent 60%),
    radial-gradient(700px 500px at 90% 50%, rgba(139, 92, 255, 0.07), transparent 60%);
  filter: blur(8px);
  opacity: 0.95;
}

/* Announcement bar */
.announce {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(8, 10, 22, 0.70);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.announce__inner {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 10px 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.announce__text {
  font-size: 13px;
  color: var(--muted);
  flex: 1;
}

.announce__link {
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.88);
}

/* Header */
.header {
  position: sticky;
  top: 44px;
  z-index: 30;
  background: rgba(8, 10, 22, 0.35);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header--solid {
  top: 0;
  background: rgba(8, 10, 22, 0.65);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand__mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(64, 210, 255, 0.95), rgba(139, 92, 255, 0.95));
  box-shadow: 0 10px 30px rgba(64, 210, 255, 0.18);
}

.brand--small .brand__mark {
  width: 28px;
  height: 28px;
  border-radius: 10px;
}

.brand__name {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  gap: 18px;
  align-items: center;
}

.nav a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.78);
  padding: 8px 10px;
  border-radius: 10px;
}

.nav a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.92);
}

.nav a[aria-current="page"] {
  background: rgba(64, 210, 255, 0.10);
  color: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(64, 210, 255, 0.18);
}

/* Tools dropdown (desktop) */
.nav__dropdown {
  position: relative;
}

.nav__dropdown-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.78);
  padding: 8px 10px;
  border-radius: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 400;
  transition: background 140ms ease, color 140ms ease;
}

.nav__dropdown-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.92);
}

.nav__dropdown-btn[aria-current="true"] {
  background: rgba(64, 210, 255, 0.10);
  color: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(64, 210, 255, 0.18);
}

.nav__dropdown-btn:focus-visible {
  outline: none;
  box-shadow: var(--cta-focus);
}

.nav__dropdown-chev {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform 160ms ease;
  opacity: 0.70;
  margin-top: 1px;
}

.nav__dropdown-btn[aria-expanded="true"] .nav__dropdown-chev {
  transform: rotate(225deg) translateY(-2px);
}

.nav__dropdown-panel {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 170px;
  background: rgba(10, 14, 28, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 6px;
  backdrop-filter: blur(16px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.50);
  z-index: 50;
  animation: dropIn 140ms ease;
}

@keyframes dropIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-4px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.nav__dropdown-panel a {
  display: block;
  padding: 9px 12px;
  border-radius: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.82);
  white-space: nowrap;
}

.nav__dropdown-panel a:hover {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.95);
  opacity: 1;
}

.nav__dropdown-panel a[aria-current="page"] {
  background: rgba(64, 210, 255, 0.12);
  color: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(64, 210, 255, 0.20);
}

/* Mobile nav group label */
.mobile-nav__group-label {
  display: block;
  padding: 8px 0 4px 0;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.40);
}

.mobile-nav__group {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 6px;
  margin-top: 6px;
}

.header__cta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  display: none;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  padding: 10px;
  cursor: pointer;
  transition: background 200ms ease, border-color 200ms ease, transform 150ms ease;
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-1px);
}

.icon-btn__bar {
  display: block;
  width: 18px;
  height: 2px;
  background: rgba(255, 255, 255, 0.85);
  margin: 3px 0;
  border-radius: 99px;
  transition: transform 200ms ease, opacity 200ms ease;
}

.mobile-nav {
  display: none;
  padding: 10px 0 16px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.mobile-nav a {
  display: block;
  padding: 10px 0;
  color: rgba(255, 255, 255, 0.86);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 14px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 14px;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  -webkit-font-smoothing: antialiased;
  position: relative;
  isolation: isolate;
}

/* Gradient-Buttons mit "double background" (verhindert Farbsäume an den Kanten) */
.btn-primary {
  --btn-grad: var(--cta-grad);
  color: rgba(255, 255, 255, 0.96);
  border: 1px solid transparent;
  background:
    var(--btn-grad) padding-box,
    var(--cta-glass) border-box;
  box-shadow: var(--cta-shadow);
  transform: translateZ(0);
  backface-visibility: hidden;
  text-shadow: 0 1px 0 rgba(8, 10, 22, 0.24);
}

.btn-primary::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.20), rgba(255, 255, 255, 0.02) 42%, rgba(255, 255, 255, 0.02));
  opacity: 0.9;
  pointer-events: none;
  z-index: -1;
}

.btn-primary:hover {
  filter: brightness(1.03);
}

.btn-primary:focus-visible {
  outline: none;
  box-shadow: var(--cta-focus), var(--cta-shadow-hover);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.90);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.86);
}

.btn-ghost:hover,
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* Button Hover-Animation (Icon reinfahren + Gradient) */
.btn-anim {
  overflow: hidden;
  padding-right: 44px;
  /* Platz für Icon */
  transition: transform 200ms ease, filter 200ms ease, box-shadow 200ms ease;
}

.btn-anim::after {
  content: "→";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translate(18px, -50%);
  opacity: 0;
  transition: transform 200ms ease, opacity 200ms ease;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.btn-primary.btn-anim:hover {
  cursor: pointer;
  --btn-grad: var(--cta-grad-hover);
  transform: translateY(-2px);
  box-shadow: var(--cta-shadow-hover);
}

.btn-primary.btn-anim:hover::after {
  opacity: 1;
  transform: translate(0px, -50%);
}

.btn-primary.btn-anim:active {
  transform: translateY(0);
  filter: brightness(0.98);
}

/* "Senden" Button: Icon-Kachel wie im Referenzbild */
.btn-send {
  position: relative;
  justify-content: center;
  padding-left: 54px;
  padding-right: 54px;
  min-width: 188px;
}

.btn-send.btn-anim {
  padding-right: 54px;
  padding-left: 54px;
}

.btn-send.btn-anim::after {
  content: "";
  display: none;
}

.btn__label {
  position: relative;
  z-index: 1;
}

.btn-send__icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  border-radius: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(135deg, rgba(75, 222, 255, 0.26), rgba(123, 109, 255, 0.24) 60%, rgba(34, 197, 94, 0.18)) padding-box,
    linear-gradient(135deg, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0.08)) border-box;
  border: 1px solid transparent;
  box-shadow: 0 10px 24px rgba(84, 116, 255, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transition: transform 200ms ease, filter 200ms ease, box-shadow 200ms ease;
  transform-origin: 50% 50%;
}

.btn-send:hover .btn-send__icon {
  filter: brightness(1.12);
  transform: translateY(calc(-50% - 1px)) scale(1.05);
  box-shadow: 0 16px 34px rgba(84, 116, 255, 0.30), 0 0 24px rgba(75, 222, 255, 0.12);
}

.btn-primary.btn-anim.btn-send:hover {
  --btn-grad: var(--cta-grad-hover);
  transform: translateY(-2px);
  box-shadow: var(--cta-shadow-hover);
}

/* Hero */
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 56px 0 24px 0;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.55;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 36px;
  align-items: start;
  position: relative;
  z-index: 1;
}

.kicker {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.60);
  margin: 0 0 10px 0;
}

.hero__title {
  margin: 0;
  line-height: 1.04;
  letter-spacing: -0.04em;
  font-size: clamp(34px, 4.2vw, 56px);
}

.hero__lead {
  margin: 16px 0 0 0;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.74);
}

.hero__actions {
  display: flex;
  gap: 12px;
  margin-top: 22px;
  flex-wrap: wrap;
}

.pill-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
}

.trust {
  margin-top: 18px;
  padding: 14px 14px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.032);
  border: 1px solid rgba(255, 255, 255, 0.10);
}

.trust__title {
  margin: 0 0 6px 0;
  font-weight: 700;
  font-size: 14px;
}

.trust__text {
  margin: 0;
  color: rgba(255, 255, 255, 0.70);
  font-size: 14px;
  line-height: 1.6;
}

/* Mock UI */
.hero__visual {
  position: relative;
}

.mock {
  border-radius: var(--radius2);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.mock__top {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(5, 7, 16, 0.45);
}

.mock__dots span {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.20);
  margin-right: 6px;
}

.mock__title {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.78);
  flex: 1;
}

.mock__chip {
  font-size: 12px;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.84);
}

.mock__body {
  display: grid;
  grid-template-columns: 0.95fr 1.35fr;
}

.mock__left,
.mock__right {
  padding: 14px;
}

.mock__left {
  border-right: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.02);
}

.mock__panel-title {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.56);
  margin: 0 0 10px 0;
}

.apparatus {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
}

.ap {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 10px;
  padding: 10px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.032);
}

.ap__ico {
  width: 26px;
  height: 26px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(64, 210, 255, 0.70), rgba(139, 92, 255, 0.70));
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.ap__name {
  font-weight: 700;
  font-size: 13px;
}

.ap__sub {
  margin-top: 2px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 12px;
}

.kv {
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

.kv__row {
  display: flex;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.82);
}

.kv__row:last-child {
  border-bottom: none;
}

.kv__row span:first-child {
  color: rgba(255, 255, 255, 0.66);
}

.chart {
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
  padding: 12px;
}

.chart__svg {
  width: 100%;
  height: auto;
  display: block;
}

.chart__legend {
  margin-top: 10px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.72);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 99px;
  background: linear-gradient(135deg, var(--accent1), var(--accent2));
  display: inline-block;
}

.sep {
  color: rgba(255, 255, 255, 0.40);
}

.muted {
  color: rgba(255, 255, 255, 0.66);
}

.mini-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 10px;
}

.mini {
  padding: 12px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
}

.mini__k {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.56);
}

.mini__v {
  margin-top: 6px;
  font-weight: 700;
  font-size: 14px;
}

.hero__caption {
  margin: 10px 0 0 0;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.62);
}

/* Sections */
.section {
  position: relative;
  z-index: 0;
  isolation: isolate;
  padding: 56px 0;
  border-top: 1px solid transparent;
  border-image: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.04) 20%, rgba(255, 255, 255, 0.04) 80%, transparent 100%) 1;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.018), rgba(255, 255, 255, 0.005));
}

/* Abschnitt‑Hintergrundsystem: dezente, sektionstypische Deko */
.section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  /* Akzentfarbe pro Abschnitt via --pattern-accent (kein festes Hardcode mehr) */
  background:
    radial-gradient(620px 360px at 20% 0%, color-mix(in oklab, var(--pattern-accent, var(--accent1)) 22%, transparent), transparent 70%),
    radial-gradient(580px 320px at 80% 8%, color-mix(in oklab, var(--pattern-accent, var(--accent1)) 16%, transparent), transparent 72%);
  opacity: 0.35;
  -webkit-mask-image: radial-gradient(980px 720px at 50% 0%, rgba(255, 255, 255, 0.85), transparent 95%);
  mask-image: radial-gradient(980px 720px at 50% 0%, rgba(255, 255, 255, 0.85), transparent 95%);
  z-index: -2;
}

/* Pattern‑Layer pro Abschnitt (Preset über data-pattern) */
.section[data-pattern]::after,
.hero[data-pattern]::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  --pattern-accent: var(--pattern-accent, rgba(255, 255, 255, 0.20));
  --pattern-opacity: var(--pattern-opacity, 0.10);
  opacity: var(--pattern-opacity);
  -webkit-mask-image: radial-gradient(980px 720px at 50% 0%, rgba(255, 255, 255, 0.85), transparent 95%);
  mask-image: radial-gradient(980px 720px at 50% 0%, rgba(255, 255, 255, 0.85), transparent 95%);
  z-index: -1;
}

/* Raster (GitHub‑Style, sehr subtil) */
.section[data-pattern="grid"]::after,
.hero[data-pattern="grid"]::after {
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.045) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.040) 0 1px, transparent 1px 96px),
    radial-gradient(520px 260px at 20% 0%, color-mix(in oklab, var(--pattern-accent) 28%, transparent), transparent 72%),
    radial-gradient(520px 260px at 80% 10%, color-mix(in oklab, var(--pattern-accent) 22%, transparent), transparent 74%);
}

/* Dots (Punktefeld, sehr ruhig) */
.section[data-pattern="dots"]::after,
.hero[data-pattern="dots"]::after {
  background:
    radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.10) 1px, transparent 1.6px),
    radial-gradient(520px 280px at 50% 0%, color-mix(in oklab, var(--pattern-accent, var(--accent2)) 28%, transparent), transparent 72%);
  background-size: 28px 28px, auto;
}

/* Arcs (Halbkreise / Radials, Deko) */
.section[data-pattern="arcs"]::after,
.hero[data-pattern="arcs"]::after {
  background:
    radial-gradient(600px 360px at 10% 15%, color-mix(in oklab, var(--pattern-accent) 30%, transparent), transparent 72%),
    radial-gradient(640px 380px at 90% 10%, color-mix(in oklab, var(--pattern-accent) 24%, transparent), transparent 74%),
    radial-gradient(820px 420px at 50% 115%, rgba(255, 255, 255, 0.05), transparent 70%);
}


/* Pattern‑Presets: Akzent pro Abschnitt (subtil) */
#features {
  --pattern-accent: var(--accent1);
  --pattern-opacity: 0.09;
}

#module {
  --pattern-accent: var(--accent3);
  --pattern-opacity: 0.08;
}

#roadmap {
  --pattern-accent: var(--accent2);
  --pattern-opacity: 0.085;
}

#kontakt {
  --pattern-accent: var(--accent2);
  --pattern-opacity: 0.09;
}

.section--formula {
  --pattern-accent: var(--accent1);
  --pattern-opacity: 0.085;
}

#app {
  --pattern-accent: var(--accent1);
  --pattern-opacity: 0.08;
}

/* Sanfter Übergang: section--alt Hintergrund via ::after mit Fade */
.section--alt {
  background: transparent; /* body-Hintergrund scheint durch */
}

.section--alt::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.028), rgba(255, 255, 255, 0.005));
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, black 8%, black 92%, transparent 100%);
  mask-image: linear-gradient(180deg, transparent 0%, black 8%, black 92%, transparent 100%);
  z-index: -1;
}

/* Merge: section--alt mit data-pattern – ::after bereits durch Pattern belegt.
   Maske auf linearen Top/Bottom-Fade umstellen (überschreibt radialen Mask aus
   .section[data-pattern]::after dank gleicher Spezifität aber späterer Position). */
.section--alt[data-pattern]::after {
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, black 8%, black 92%, transparent 100%);
  mask-image: linear-gradient(180deg, transparent 0%, black 8%, black 92%, transparent 100%);
}

.section__head {
  max-width: 760px;
}

.section__head h1,
.section__head h2 {
  margin: 0;
  letter-spacing: -0.03em;
  font-size: clamp(24px, 2.7vw, 34px);
}

.section__head p {
  margin: 12px 0 0 0;
  color: rgba(255, 255, 255, 0.70);
  line-height: 1.7;
  font-size: 15px;
}

/* Tri cards */
.tri {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.tri__card {
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.032);
}

.tri__title {
  margin: 0;
  font-weight: 700;
  font-size: 15px;
}

.tri__text {
  margin: 10px 0 0 0;
  color: rgba(255, 255, 255, 0.70);
  line-height: 1.65;
  font-size: 14px;
}

/* Feature cards */
.grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.card {
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.032);
}

.card__top {
  display: flex;
  align-items: center;
  gap: 10px;
}

.card__ico {
  width: 30px;
  height: 30px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(64, 210, 255, 0.65), rgba(139, 92, 255, 0.65));
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.card__title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
}

.card__text {
  margin: 10px 0 0 0;
  color: rgba(255, 255, 255, 0.70);
  line-height: 1.65;
  font-size: 14px;
}

/* Module experience: fully redesigned */
#module .tabs {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

#module .tab {
  min-height: 46px;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
  color: rgba(255, 255, 255, 0.8);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

#module .tab:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.2);
}

#module .tab[aria-selected="true"] {
  border-color: color-mix(in srgb, var(--module-accent, #40D2FF) 68%, rgba(255, 255, 255, 0.2));
  background: linear-gradient(145deg, color-mix(in srgb, var(--module-accent, #40D2FF) 24%, rgba(255, 255, 255, 0.08)), rgba(255, 255, 255, 0.06));
  color: #fff;
  box-shadow: 0 10px 30px color-mix(in srgb, var(--module-accent, #40D2FF) 26%, transparent);
}

#module .tab:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--module-accent, #40D2FF) 80%, #fff 12%);
  outline-offset: 2px;
}

.module-stage {
  margin-top: 14px;
}

.module {
  --module-accent: #40D2FF;
  position: relative;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background:
    radial-gradient(120% 100% at 0% 0%, color-mix(in srgb, var(--module-accent) 14%, transparent), transparent 60%),
    linear-gradient(168deg, rgba(6, 10, 22, 0.92), rgba(5, 8, 18, 0.86));
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.48);
  overflow: hidden;
}

.module::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(120deg, transparent 20%, color-mix(in srgb, var(--module-accent) 16%, transparent) 55%, transparent 86%);
  opacity: 0.65;
}

.module-lab__head {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 18px 10px 18px;
}

.module-lab__eyebrow {
  margin: 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--module-accent) 74%, rgba(255, 255, 255, 0.62));
}

.module-lab__head h3 {
  margin: 8px 0 0 0;
  font-size: clamp(21px, 2.4vw, 28px);
  letter-spacing: -0.02em;
}

.module-lab__head p {
  margin: 8px 0 0 0;
}

.module-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  max-width: 56%;
}

.module-badge {
  min-height: 26px;
  display: inline-flex;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.8);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.module-badge--strong {
  background: color-mix(in srgb, var(--module-accent) 24%, rgba(255, 255, 255, 0.06));
  border-color: color-mix(in srgb, var(--module-accent) 62%, rgba(255, 255, 255, 0.16));
  color: #fff;
}

.module-lab__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 14px;
  padding: 0 18px 18px;
}

.module-lab__copy {
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.028);
  padding: 14px;
}

.module__list {
  margin: 0;
  padding-left: 18px;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.75;
}

.module__list li + li {
  margin-top: 6px;
}

.module__note {
  margin-top: 14px;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.035);
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.6;
  font-size: 13px;
}

.module-visual {
  position: relative;
  min-height: 328px;
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--module-accent) 28%, rgba(255, 255, 255, 0.12));
  background: rgba(4, 8, 18, 0.68);
  overflow: hidden;
  isolation: isolate;
}

.module-visual__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(68% 56% at 18% 18%, color-mix(in srgb, var(--module-accent) 26%, transparent), transparent 72%),
    radial-gradient(60% 48% at 82% 28%, rgba(255, 255, 255, 0.08), transparent 78%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.05), transparent 34%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.03) 0 1px, transparent 1px 18px);
  opacity: 0.92;
}

.module-visual__scan {
  position: absolute;
  inset: -20% 0 auto;
  height: 42%;
  background: linear-gradient(180deg, color-mix(in srgb, var(--module-accent) 24%, transparent), transparent 80%);
  opacity: 0.44;
  filter: blur(12px);
  animation: moduleScan 6.8s ease-in-out infinite;
}

/* Per-topic visual motifs for module tabs */
.module-theme {
  position: absolute;
  inset: 14px 14px 122px 14px;
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  transform: scale(0.982) translateY(8px);
  transition: opacity 280ms ease, transform 280ms ease;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
  backdrop-filter: blur(4px);
  overflow: hidden;
}

.module[data-module='schema'] .module-theme--schema,
.module[data-module='druck'] .module-theme--druck,
.module[data-module='hx'] .module-theme--hx,
.module[data-module='schall'] .module-theme--schall {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.module-theme::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 24%),
    radial-gradient(80% 120% at 0% 0%, color-mix(in srgb, var(--module-accent) 12%, transparent), transparent 58%);
  opacity: 0.9;
}

.schema-stage,
.druck-stage,
.hx-stage,
.schall-stage {
  position: absolute;
  inset: 0;
}

.schema-stage {
  background:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.03) 0 1px, transparent 1px 28px);
}

.schema-stage__rail {
  position: absolute;
  left: 11%;
  right: 12%;
  top: 38%;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--module-accent) 72%, white 18%), transparent);
  box-shadow: 0 0 10px color-mix(in srgb, var(--module-accent) 28%, transparent);
}

.schema-stage__rail--return {
  top: 62%;
  left: 23%;
  right: 24%;
  opacity: 0.55;
}

.schema-stage__flow {
  position: absolute;
  left: 10%;
  right: 17%;
  top: 34%;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--module-accent) 85%, white 18%), transparent);
  filter: blur(0.3px);
  animation: schemaFlow 4.8s linear infinite;
}

.schema-unit {
  position: absolute;
  width: 28%;
  min-height: 74px;
  padding: 12px 12px 11px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(9, 14, 30, 0.52));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 14px 34px rgba(0, 0, 0, 0.24);
}

.schema-unit__type,
.schema-unit__meta,
.druck-segment span,
.druck-gauge__label,
.hx-stream__tag,
.hx-status span,
.schall-tag {
  display: block;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.schema-unit__type,
.schema-unit__meta,
.druck-segment span,
.druck-gauge__label,
.hx-stream__tag,
.hx-status span {
  color: rgba(255, 255, 255, 0.62);
}

.schema-unit__name,
.druck-segment strong,
.druck-gauge__value,
.hx-stream__temp,
.hx-status strong {
  display: block;
  color: rgba(255, 255, 255, 0.95);
  letter-spacing: -0.02em;
}

.schema-unit__name {
  margin-top: 6px;
  font-size: 18px;
}

.schema-unit__meta {
  margin-top: 10px;
}

.schema-unit--oa { left: 6%; top: 12%; }
.schema-unit--filter { left: 36%; top: 12%; }
.schema-unit--fan { left: 19%; top: 52%; }
.schema-unit--room { right: 6%; top: 40%; width: 24%; }

.druck-stage {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 28%),
    radial-gradient(70% 90% at 100% 0%, color-mix(in srgb, var(--module-accent) 14%, transparent), transparent 60%);
}

.druck-stage__grid {
  position: absolute;
  inset: 10% 8% 14% 8%;
  background:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.025) 0 1px, transparent 1px 34px);
  opacity: 0.42;
}

.druck-profile {
  position: absolute;
  left: 8%;
  right: 8%;
  top: 10%;
  height: 40%;
}

.druck-profile::before {
  content: "";
  position: absolute;
  inset: 0;
  clip-path: polygon(8% 18%, 31% 34%, 52% 49%, 72% 63%, 90% 78%, 90% 100%, 8% 100%);
  background: linear-gradient(180deg, color-mix(in srgb, var(--module-accent) 24%, transparent), transparent 88%);
  opacity: 0.55;
}

.druck-profile::after {
  content: "";
  position: absolute;
  left: 8%;
  top: 18%;
  width: 82%;
  height: 60%;
  border-radius: 0;
  background: linear-gradient(135deg, transparent 0 17%, color-mix(in srgb, var(--module-accent) 82%, white 10%) 17% 18%, transparent 18% 39%, color-mix(in srgb, var(--module-accent) 82%, white 10%) 39% 40%, transparent 40% 61%, color-mix(in srgb, var(--module-accent) 82%, white 10%) 61% 62%, transparent 62% 79%, color-mix(in srgb, var(--module-accent) 82%, white 10%) 79% 80%, transparent 80%);
  opacity: 0.66;
}

.druck-profile__point {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--module-accent) 78%, white 18%);
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--module-accent) 18%, transparent);
  transform: translate(-50%, -50%);
}

.druck-pipeline {
  position: absolute;
  left: 8%;
  right: 26%;
  bottom: 14%;
  height: 34%;
}

.druck-pipeline::before {
  content: "";
  position: absolute;
  left: 3%;
  right: 3%;
  top: 44%;
  height: 18px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.08), color-mix(in srgb, var(--module-accent) 56%, rgba(255, 255, 255, 0.28)), rgba(255, 255, 255, 0.08));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.druck-segment {
  position: absolute;
  top: 10%;
  width: 22%;
  min-height: 58px;
  padding: 10px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(8, 14, 26, 0.72);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.22);
}

.druck-segment strong {
  font-size: 15px;
}

.druck-segment--a { left: 0; }
.druck-segment--b { left: 25%; top: 0; }
.druck-segment--c { left: 50%; top: 16%; }
.druck-segment--d { left: 75%; top: 4%; }

.druck-gauge {
  position: absolute;
  right: 7%;
  top: 18%;
  width: 120px;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--module-accent) 34%, rgba(255, 255, 255, 0.18));
  background:
    radial-gradient(circle at 50% 50%, rgba(7, 11, 22, 0.96) 0 56%, transparent 57%),
    conic-gradient(from 210deg, color-mix(in srgb, var(--module-accent) 14%, transparent), color-mix(in srgb, var(--module-accent) 82%, white 10%), color-mix(in srgb, var(--module-accent) 14%, transparent));
  display: grid;
  place-items: center;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}

.druck-gauge::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 38%;
  height: 2px;
  transform-origin: 0 50%;
  transform: rotate(24deg);
  background: linear-gradient(90deg, color-mix(in srgb, var(--module-accent) 92%, white 12%), transparent);
  box-shadow: 0 0 14px color-mix(in srgb, var(--module-accent) 28%, transparent);
}

.druck-gauge__label {
  margin-bottom: 6px;
  text-align: center;
}

.druck-gauge__value {
  font-size: 22px;
  text-align: center;
}

.hx-stage {
  background:
    radial-gradient(72% 90% at 0% 100%, rgba(59, 130, 246, 0.14), transparent 52%),
    radial-gradient(72% 90% at 100% 0%, rgba(245, 158, 11, 0.16), transparent 52%);
}

.hx-core {
  position: absolute;
  left: 36%;
  right: 36%;
  top: 18%;
  bottom: 18%;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(8, 12, 24, 0.5));
  overflow: hidden;
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.26);
}

.hx-core__mesh {
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(90deg, rgba(245, 158, 11, 0.84) 0 10px, rgba(245, 158, 11, 0.28) 10px 16px, rgba(59, 130, 246, 0.34) 16px 22px, rgba(59, 130, 246, 0.84) 22px 32px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 18px);
  opacity: 0.9;
}

.hx-core__label {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(7, 10, 18, 0.74);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.9);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hx-stream {
  position: absolute;
  width: 29%;
  min-height: 78px;
  padding: 14px 14px 12px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(8, 13, 24, 0.72);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.24);
}

.hx-stream::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.86));
}

.hx-stream::before {
  content: "";
  position: absolute;
  top: calc(50% - 5px);
  width: 10px;
  height: 10px;
  border-top: 2px solid rgba(255, 255, 255, 0.86);
  border-right: 2px solid rgba(255, 255, 255, 0.86);
}

.hx-stream--hot {
  left: 7%;
  top: 16%;
  background: linear-gradient(180deg, rgba(245, 158, 11, 0.16), rgba(8, 13, 24, 0.72));
}

.hx-stream--hot::after {
  right: -34px;
}

.hx-stream--hot::before {
  right: -34px;
  transform: rotate(45deg);
}

.hx-stream--cold {
  right: 7%;
  bottom: 16%;
  background: linear-gradient(180deg, rgba(59, 130, 246, 0.16), rgba(8, 13, 24, 0.72));
}

.hx-stream--cold::after {
  left: -34px;
  transform: rotate(180deg);
}

.hx-stream--cold::before {
  left: -34px;
  transform: rotate(-135deg);
}

.hx-stream__temp {
  margin-top: 6px;
  font-size: 26px;
}

.hx-status {
  position: absolute;
  bottom: 12%;
  min-width: 116px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(7, 10, 18, 0.72);
}

.hx-status strong {
  margin-top: 5px;
  font-size: 15px;
}

.hx-status--a { left: 8%; }
.hx-status--b { right: 8%; }

.schall-stage {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.02), transparent 26%),
    radial-gradient(74% 90% at 0% 50%, color-mix(in srgb, var(--module-accent) 12%, transparent), transparent 58%);
}

.schall-source {
  position: absolute;
  left: 8%;
  top: 50%;
  width: 86px;
  height: 86px;
  transform: translateY(-50%);
}

.schall-source__body {
  position: absolute;
  left: 0;
  top: 18%;
  width: 32px;
  height: 64%;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(7, 10, 18, 0.76));
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.schall-source__cone {
  position: absolute;
  left: 24px;
  top: 14%;
  width: 56px;
  height: 72%;
  clip-path: polygon(0 24%, 100% 0, 100% 100%, 0 76%);
  background: linear-gradient(90deg, color-mix(in srgb, var(--module-accent) 48%, rgba(255, 255, 255, 0.18)), rgba(255, 255, 255, 0.1));
  border-radius: 8px;
}

.schall-wavebank {
  position: absolute;
  left: 16%;
  top: 50%;
  width: 34%;
  height: 60%;
  transform: translateY(-50%);
}

.schall-wavebank span {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--module-accent) 56%, rgba(255, 255, 255, 0.18));
  opacity: 0;
  animation: schallWave 3.6s ease-out infinite;
}

.schall-wavebank span:nth-child(2) { animation-delay: -1.2s; }
.schall-wavebank span:nth-child(3) { animation-delay: -2.4s; }

.schall-baffles {
  position: absolute;
  left: 48%;
  top: 18%;
  bottom: 18%;
  width: 12%;
  display: grid;
  gap: 10px;
}

.schall-baffles span {
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.2), rgba(7, 10, 18, 0.62));
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.schall-target {
  position: absolute;
  right: 8%;
  top: 18%;
  width: 28%;
  bottom: 18%;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(7, 10, 18, 0.72);
  padding: 14px 12px 12px;
}

.schall-target__line {
  position: absolute;
  left: 12px;
  right: 12px;
  top: 36%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.9), transparent);
  opacity: 0.75;
}

.schall-spectrum {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 14px;
  top: 18px;
  display: flex;
  align-items: end;
  gap: 8px;
}

.schall-spectrum span {
  flex: 1;
  height: var(--bar);
  border-radius: 999px 999px 8px 8px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--module-accent) 74%, white 12%), color-mix(in srgb, var(--module-accent) 26%, transparent));
  box-shadow: 0 0 14px color-mix(in srgb, var(--module-accent) 24%, transparent);
  animation: schallBars 3.4s ease-in-out infinite;
}

.schall-spectrum span:nth-child(2) { animation-delay: -0.4s; }
.schall-spectrum span:nth-child(3) { animation-delay: -0.8s; }
.schall-spectrum span:nth-child(4) { animation-delay: -1.2s; }
.schall-spectrum span:nth-child(5) { animation-delay: -1.6s; }

.schall-tag {
  position: absolute;
  right: 10%;
  bottom: 12%;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: color-mix(in srgb, var(--module-accent) 16%, rgba(7, 10, 18, 0.72));
  color: rgba(255, 255, 255, 0.88);
  font-weight: 700;
}

.module-bars {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 94px;
  display: grid;
  gap: 8px;
}

.module-bar {
  display: grid;
  grid-template-columns: 64px 1fr;
  align-items: center;
  gap: 8px;
}

.module-bar__label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.74);
}

.module-bar__track {
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.module-bar__fill {
  display: block;
  height: 100%;
  width: var(--level, 0%);
  border-radius: inherit;
  background: linear-gradient(90deg, color-mix(in srgb, var(--module-accent) 66%, white 16%), color-mix(in srgb, var(--module-accent) 28%, white 8%));
  box-shadow: 0 0 12px color-mix(in srgb, var(--module-accent) 34%, transparent);
  transition: width 460ms cubic-bezier(0.16, 1, 0.3, 1);
}

.module-kpis {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.module-kpi {
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.05);
  padding: 8px 9px;
  display: grid;
  gap: 3px;
}

.module-kpi__k {
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
  font-weight: 700;
}

.module-kpi__v {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.93);
  letter-spacing: -0.01em;
}

@keyframes moduleScan {
  0%, 100% { transform: translateY(0); opacity: 0.38; }
  50% { transform: translateY(190px); opacity: 0.64; }
}

@keyframes schemaFlow {
  0% { transform: translateX(-12%); opacity: 0.12; }
  40% { opacity: 0.82; }
  100% { transform: translateX(10%); opacity: 0.2; }
}

@keyframes schallWave {
  0% { transform: scale(0.6); opacity: 0.8; }
  100% { transform: scale(1.7); opacity: 0; }
}

@keyframes schallBars {
  0%, 100% { transform: scaleY(0.86); opacity: 0.6; }
  50% { transform: scaleY(1.08); opacity: 1; }
}

/* ── Module depth switcher (Clean / Ultra) ───────────────────────────── */
.module-depth-switch {
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  background: rgba(8, 12, 24, 0.66);
}

.module-depth-btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 999px;
  min-height: 32px;
  padding: 0 16px;
  background: rgba(255, 255, 255, 0.03);
  color: rgba(255, 255, 255, 0.78);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 150ms ease;
}

.module-depth-btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.07);
}

.module-depth-btn.is-active {
  background: linear-gradient(120deg, rgba(139, 92, 255, 0.30), rgba(64, 210, 255, 0.22));
  border-color: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.module-depth-btn:focus-visible {
  outline: 2px solid rgba(139, 92, 255, 0.85);
  outline-offset: 2px;
}

/* Ultra elements: hidden in Clean mode */
.module-ultra-canvas,
.module-ultra-rings,
.module-ultra-grid {
  display: none;
}

html[data-module-depth='ultra'] .module-ultra-canvas {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.68;
}

html[data-module-depth='ultra'] .module-ultra-rings {
  display: block;
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  overflow: hidden;
}

.module-ultra-ring {
  position: absolute;
  left: 50%;
  top: 50%;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--module-accent, #40D2FF) 40%, rgba(255, 255, 255, 0.14));
  transform: translate(-50%, -50%);
  opacity: 0;
  animation: moduleRingExpand 3.4s ease-out infinite;
  animation-delay: calc(var(--ri) * 1.12s);
}

.module-ultra-ring:nth-child(1) { width: 88px;  height: 88px; }
.module-ultra-ring:nth-child(2) { width: 152px; height: 152px; }
.module-ultra-ring:nth-child(3) { width: 216px; height: 216px; }

html[data-module-depth='ultra'] .module-ultra-grid {
  display: block;
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background:
    repeating-linear-gradient(0deg,  color-mix(in srgb, var(--module-accent, #40D2FF) 11%, transparent) 0 1px, transparent 1px 22px),
    repeating-linear-gradient(90deg, color-mix(in srgb, var(--module-accent, #40D2FF)  9%, transparent) 0 1px, transparent 1px 22px);
  opacity: 0.38;
  mask-image: radial-gradient(80% 80% at 50% 50%, rgba(0,0,0,0.72), transparent);
}

/* Ultra: stronger module card */
html[data-module-depth='ultra'] .module {
  border-color: color-mix(in srgb, var(--module-accent, #40D2FF) 30%, rgba(255, 255, 255, 0.16));
  box-shadow:
    0 42px 110px rgba(0, 0, 0, 0.62),
    0 0 0 1px color-mix(in srgb, var(--module-accent, #40D2FF) 16%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Ultra: visual pane gets pointer-driven 3D tilt */
html[data-module-depth='ultra'] .module-visual {
  transform: perspective(820px) rotateX(var(--vx, 0deg)) rotateY(var(--vy, 0deg));
  transform-style: preserve-3d;
  transition: transform 260ms cubic-bezier(0.16, 1, 0.3, 1);
  border-color: color-mix(in srgb, var(--module-accent, #40D2FF) 46%, rgba(255, 255, 255, 0.16));
  box-shadow:
    0 22px 64px rgba(0, 0, 0, 0.54),
    0 0 44px color-mix(in srgb, var(--module-accent, #40D2FF) 22%, transparent);
}

/* Ultra: tabs stronger active glow */
html[data-module-depth='ultra'] #module .tab[aria-selected="true"] {
  box-shadow:
    0 10px 32px color-mix(in srgb, var(--module-accent, #40D2FF) 38%, transparent),
    0 0 0 1px color-mix(in srgb, var(--module-accent, #40D2FF) 58%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.13);
}

/* Ultra: scan is crisper */
html[data-module-depth='ultra'] .module-visual__scan {
  opacity: 0.78;
  filter: blur(7px);
}

/* Ultra: bars get glow fill */
html[data-module-depth='ultra'] .module-bar__fill {
  box-shadow: 0 0 20px color-mix(in srgb, var(--module-accent, #40D2FF) 52%, transparent);
}

/* Ultra: KPI boxes glow */
html[data-module-depth='ultra'] .module-kpi {
  border-color: color-mix(in srgb, var(--module-accent, #40D2FF) 30%, rgba(255, 255, 255, 0.14));
  background: color-mix(in srgb, var(--module-accent, #40D2FF) 13%, rgba(255, 255, 255, 0.05));
  box-shadow: 0 0 16px color-mix(in srgb, var(--module-accent, #40D2FF) 20%, transparent);
}

@keyframes moduleRingExpand {
  0%   { transform: translate(-50%, -50%) scale(0.72); opacity: 0.88; }
  70%  { opacity: 0.22; }
  100% { transform: translate(-50%, -50%) scale(1.44); opacity: 0; }
}

@media (max-width: 980px) {
  #module .tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .module-lab__head {
    flex-direction: column;
  }

  .module-badges {
    max-width: 100%;
    justify-content: flex-start;
  }

  .module-lab__grid {
    grid-template-columns: 1fr;
  }

  .module-visual {
    min-height: 440px;
  }

  .module-theme {
    inset: 12px 12px 160px 12px;
  }

  .schema-unit {
    width: 40%;
  }

  .schema-unit--oa { left: 6%; top: 10%; }
  .schema-unit--filter { right: 6%; left: auto; top: 10%; }
  .schema-unit--fan { left: 6%; top: 56%; }
  .schema-unit--room { right: 6%; top: 56%; width: 40%; }

  .druck-pipeline {
    right: 8%;
    height: 30%;
  }

  .druck-segment {
    width: 23%;
  }

  .druck-gauge {
    right: 8%;
    top: 58%;
    width: 96px;
  }

  .hx-core {
    left: 32%;
    right: 32%;
  }

  .hx-stream {
    width: 28%;
  }

  .schall-wavebank {
    width: 38%;
  }

  .schall-target {
    width: 30%;
  }
}

@media (max-width: 620px) {
  #module .tabs {
    grid-template-columns: 1fr;
  }

  .module-visual {
    min-height: 560px;
  }

  .module-theme {
    inset: 12px 12px 184px 12px;
  }

  .schema-stage__rail,
  .schema-stage__rail--return,
  .schema-stage__flow {
    display: none;
  }

  .schema-unit,
  .schema-unit--room {
    position: relative;
    left: auto;
    right: auto;
    top: auto;
    width: auto;
  }

  .schema-stage {
    display: grid;
    gap: 10px;
    padding: 12px;
  }

  .druck-profile {
    left: 10px;
    right: 10px;
    top: 12px;
    height: 34%;
  }

  .druck-pipeline {
    left: 12px;
    right: 12px;
    top: 42%;
    bottom: auto;
    height: auto;
    display: grid;
    gap: 10px;
  }

  .druck-pipeline::before {
    display: none;
  }

  .druck-segment {
    position: relative;
    left: auto;
    top: auto;
    width: auto;
  }

  .druck-gauge {
    top: auto;
    bottom: 12px;
    right: 12px;
    width: 92px;
  }

  .hx-core {
    left: 18%;
    right: 18%;
    top: 22%;
    bottom: 30%;
  }

  .hx-stream {
    width: auto;
    left: 12px;
    right: 12px;
  }

  .hx-stream--hot {
    top: 12px;
  }

  .hx-stream--cold {
    bottom: 80px;
  }

  .hx-stream::after,
  .hx-stream::before {
    display: none;
  }

  .hx-status {
    bottom: 12px;
  }

  .hx-status--a {
    left: 12px;
  }

  .hx-status--b {
    right: 12px;
  }

  .schall-source {
    left: 12px;
    top: 24%;
    transform: none;
  }

  .schall-wavebank {
    left: 24px;
    top: 18%;
    width: 48%;
    height: 34%;
    transform: none;
  }

  .schall-baffles {
    left: 12px;
    right: 12px;
    top: 54%;
    bottom: auto;
    width: auto;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: none;
    height: 18px;
  }

  .schall-target {
    left: 12px;
    right: 12px;
    width: auto;
    top: auto;
    bottom: 52px;
    height: 130px;
  }

  .schall-tag {
    right: 12px;
    bottom: 12px;
  }

  .module-kpis {
    grid-template-columns: 1fr;
  }

  .module-bars {
    bottom: 126px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .module-theme,
  .schema-stage__flow,
  .schall-wavebank span,
  .schall-spectrum span {
    animation: none !important;
  }

  .module-ultra-ring {
    animation: none;
  }

  html[data-module-depth='ultra'] .module-visual {
    transform: none;
    transition: none;
  }
}

/* Roadmap */
.roadmap {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.road {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.032);
}

.road__step {
  width: 34px;
  height: 34px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(64, 210, 255, 0.60), rgba(139, 92, 255, 0.60));
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.road__title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
}
    
.road__period {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  margin: 0 0 6px 0;
  color: rgba(64, 210, 255, 0.75);
}
.road[data-phase="2"] .road__period { color: rgba(139, 92, 255, 0.75); }
.road[data-phase="3"] .road__period { color: rgba(34, 197, 94, 0.75); }

.road__text {
  margin: 8px 0 0 0;
  color: rgba(255, 255, 255, 0.70);
  line-height: 1.65;
  font-size: 14px;
}

/* CTA */
.cta {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(135deg, rgba(64, 210, 255, 0.08), rgba(139, 92, 255, 0.06));
}

.cta__copy h2 {
  margin: 0;
  font-size: clamp(22px, 2.4vw, 30px);
  letter-spacing: -0.03em;
}

.cta__copy p {
  margin: 12px 0 0 0;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.7;
}

.cta__form {
  display: grid;
  gap: 10px;
}

.cta__form label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
}

input,
textarea {
  font: inherit;
  color: rgba(255, 255, 255, 0.90);
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 10px 12px;
  outline: none;
}

input:focus,
textarea:focus {
  border-color: rgba(64, 210, 255, 0.35);
  box-shadow: 0 0 0 3px rgba(64, 210, 255, 0.12);
}

/* ── Consistent focus ring for all interactive elements ───── */
a:focus-visible,
button:focus-visible,
[role="menuitem"]:focus-visible,
.tab:focus-visible,
.mini-btn:focus-visible,
.toc__toggle:focus-visible {
  outline: none;
  box-shadow: var(--cta-focus);
  border-radius: 10px;
}

/* ── App page: hx-select (moved from inline style in app.html) */
.hx-select-group {
  margin-bottom: 12px;
}

.hx-select-group label {
  display: block;
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.80);
  margin-bottom: 4px;
}

.hx-select {
  width: 100%;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.90);
  font: inherit;
  font-size: var(--fs-sm);
  padding: 6px 10px;
  outline: none;
  cursor: pointer;
  transition: border-color 160ms ease;
}

.hx-select:focus {
  border-color: rgba(64, 210, 255, 0.55);
  box-shadow: var(--cta-focus);
}

.hx-select option {
  background: #1a1a2e;
  color: #fff;
}

.kv__row span:last-child {
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}

.kv__row--faded span:last-child {
  color: rgba(255, 255, 255, 0.55);
}

.fineprint {
  margin: 0;
  color: rgba(255, 255, 255, 0.55);
  font-size: 12px;
  line-height: 1.5;
}

.fineprint--success {
  color: #6ee7b7;
}

.fineprint--error {
  color: #fca5a5;
}

/* Footer */
.footer {
  padding: 22px 0 36px 0;
}

.footer--tight {
  padding: 16px 0 24px 0;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
}

.footer__left {
  max-width: 460px;
}

.footer__right {
  display: grid;
  gap: 10px;
  align-content: start;
}

.footer__right a {
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
}

.footer__right a:hover {
  color: rgba(255, 255, 255, 0.90);
}

/* App page */
.app-shell {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 14px;
  margin-top: 18px;
}

.app-shell__sidebar {
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.032);
  padding: 14px;
}

.app-shell__main {
  min-height: 520px;
}

.app-placeholder h2 {
  margin: 0;
  letter-spacing: -0.02em;
}

.app-placeholder p {
  margin: 10px 0 0 0;
  line-height: 1.7;
}

.app-placeholder__canvas {
  margin-top: 16px;
  height: 360px;
  border-radius: 16px;
  border: 1px dashed rgba(255, 255, 255, 0.18);
  background: rgba(0, 0, 0, 0.16);
  position: relative;
  overflow: hidden;
}

.app-placeholder__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 38px 38px;
  opacity: 0.5;
}

.app-placeholder__hint {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.70);
  font-weight: 600;
}

/* ── h‑x Demo (app.html) ──────────────────────────────────────────────── */
.hx-demo-card {
  padding: 14px;
}

.hx-canvas-wrap {
  border-radius: 12px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.10);
}

.hx-canvas-wrap canvas {
  display: block;
  width: 100%;
  height: auto;
  touch-action: none;
}

.hx-caption {
  margin: 10px 0 0 0;
  font-size: 12px;
  line-height: 1.6;
}

.hx-slider-group {
  margin-bottom: 12px;
}

.hx-slider-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.80);
  margin-bottom: 4px;
}

.hx-slider-val {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  font-variant-numeric: tabular-nums;
}

.hx-slider {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.14);
  outline: none;
  cursor: pointer;
  accent-color: var(--accent2);
}

.hx-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent2);
  cursor: pointer;
  border: 2px solid rgba(255, 255, 255, 0.70);
}

.hx-drag-hint {
  margin: 0 0 8px 0;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.5;
}

/* Showcase (Twingate‑Style, adaptiert) */
.section--showcase {
  position: relative;
  isolation: isolate;
  background:
    radial-gradient(900px 620px at 18% 10%, rgba(64, 210, 255, 0.10), transparent 60%),
    radial-gradient(900px 620px at 82% 20%, rgba(139, 92, 255, 0.10), transparent 62%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.05), rgba(0, 0, 0, 0.00));
}

.section--showcase::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.055) 1px, transparent 1.7px),
    radial-gradient(circle, rgba(255, 255, 255, 0.032) 1px, transparent 2.1px);
  background-size: 34px 34px, 54px 54px;
  background-position: 0 0, 12px 18px;
  opacity: 0.20;
  -webkit-mask-image: radial-gradient(70% 70% at 50% 35%, rgba(0, 0, 0, 0.9), transparent 85%);
  mask-image: radial-gradient(70% 70% at 50% 35%, rgba(0, 0, 0, 0.9), transparent 85%);
  z-index: 0;
}

.section--showcase .container {
  position: relative;
  z-index: 1;
}

.showcase {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.scene {
  padding: 0;
  border-radius: var(--radius2);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
  position: relative;
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.42);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.scene:hover {
  border-color: rgba(255, 255, 255, 0.20);
  box-shadow: 0 28px 88px rgba(0, 0, 0, 0.52);
  transform: translateY(-1px);
}

.scene:hover .scene__pattern {
  opacity: 0.52;
}

.scene:hover .kpi {
  border-color: rgba(255, 255, 255, 0.14);
}

.scene__head {
  padding: 16px 16px 0 16px;
}

.scene__title {
  margin: 0;
  font-size: 18px;
  letter-spacing: -0.02em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  color: color-mix(in srgb, var(--scene-accent) 65%, rgba(255, 255, 255, 0.88));
}

.scene__sub {
  margin: 10px 0 0 0;
  color: rgba(255, 255, 255, 0.70);
  line-height: 1.65;
  font-size: 14px;
}

.scene__visual {
  margin-top: 14px;
  height: 258px;
  position: relative;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background:
    radial-gradient(800px 360px at 40% 20%, rgba(255, 255, 255, 0.05), transparent 58%),
    radial-gradient(720px 360px at 70% 90%, rgba(0, 0, 0, 0.20), transparent 60%);
}

.scene__pattern {
  position: absolute;
  inset: -10% -10% -10% -10%;
  opacity: 0.26;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.10) 1px, transparent 1.7px),
    radial-gradient(circle, color-mix(in srgb, var(--scene-accent) 40%, transparent) 1px, transparent 1.9px);
  background-size: 26px 26px, 46px 46px;
  background-position: 0 0, 10px 12px;
  filter: blur(0.1px);
  transform: translate(var(--mx, 0px), var(--my, 0px));
  transition: transform 180ms ease;
  mask-image: radial-gradient(75% 70% at 50% 45%, rgba(0, 0, 0, 0.92), transparent 82%);
  z-index: 0;
}

.scene__kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding: 14px 16px 16px 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(0, 0, 0, 0.18);
}

.kpi {
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
  padding: 12px;
  min-height: 78px;
}

.kpi__k {
  font-size: 12px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.60);
}

.kpi__v {
  margin-top: 8px;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: rgba(255, 255, 255, 0.92);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-variant-numeric: tabular-nums;
}

.kpi__n {
  margin-top: 6px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.60);
}

.showcase__note {
  margin-top: 14px;
  border-radius: var(--radius2);
}

/* Orbit scene */
.scene__visual--orbit {
  display: grid;
  place-items: center;
  overflow: hidden;
}

.orbit {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}

.orbit__ring {
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 999px;
  border: 1px dashed rgba(255, 255, 255, 0.18);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.032);
}

.orbit__ring--a {
  width: 268px;
  height: 268px;
  animation: spin 28s linear infinite;
}

.orbit__ring--b {
  width: 352px;
  height: 352px;
  opacity: 0.72;
  animation: spinReverse 38s linear infinite;
}

.orbit__node {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(var(--angle)) translateX(var(--r));
}

.orbit__node-inner {
  width: 46px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.30);
  color: rgba(255, 255, 255, 0.84);
  font-weight: 800;
  font-size: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.30);
  will-change: transform;
}

.orbit__node--ghost .orbit__node-inner {
  border-style: dashed;
  opacity: 0.82;
}

/* Keep labels readable: orbit moves, text stays upright */
.orbit__ring--a .orbit__node-inner {
  animation: counterCcw 28s linear infinite;
}

.orbit__ring--b .orbit__node-inner {
  animation: counterCw 38s linear infinite;
}

.orbit__core {
  width: 172px;
  height: 172px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: radial-gradient(80% 70% at 50% 30%, rgba(255, 255, 255, 0.06), rgba(0, 0, 0, 0.28));
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.44);
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}

.orbit__core::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: conic-gradient(from 90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
  animation: sweep 18s linear infinite;
  opacity: 0.65;
}

.core__icon {
  color: color-mix(in srgb, var(--scene-accent) 70%, rgba(255, 255, 255, 0.88));
  filter: drop-shadow(0 10px 24px rgba(0, 0, 0, 0.45));
  position: relative;
  z-index: 1;
}

.core__icon-svg {
  overflow: visible;
}

/* Keep channel housing fixed; animate only airflow inside. */
.core__channel-frame,
.core__channel-inner {
  animation: none !important;
  vector-effect: non-scaling-stroke;
}

.core__channel-wave {
  stroke-dasharray: 8 10;
  stroke-dashoffset: 0;
  filter: drop-shadow(0 0 4px color-mix(in srgb, var(--scene-accent) 50%, rgba(255, 255, 255, 0.24)));
  animation: channelAirWave 2.1s linear infinite;
}

.core__channel-flow {
  animation: channelFlowGlow 2.1s ease-in-out infinite;
}

.core__channel-arrow {
  transform-origin: 36px 28px;
  animation: channelArrowNudge 2.1s ease-in-out infinite;
}

.core__tag {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.32);
  color: rgba(255, 255, 255, 0.76);
  font-size: 12px;
  font-weight: 700;
  z-index: 1;
}

.orbit__sweep {
  position: absolute;
  width: 470px;
  height: 470px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
  mask-image: conic-gradient(from 120deg, rgba(0, 0, 0, 0.9) 0 18%, transparent 18% 100%);
  animation: pulse 6s ease-in-out infinite;
  opacity: 0.42;
}

/* Tiles scene */
.scene__visual--tiles {
  overflow: hidden;
  display: grid;
  place-items: center;
}

.tilegrid {
  position: absolute;
  inset: 18px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-content: center;
  z-index: 2;
}

.tile {
  width: auto;
  position: relative;
  padding: 12px 12px;
  border-radius: 18px;
  border: 1px solid color-mix(in srgb, var(--scene-accent) 40%, rgba(255, 255, 255, 0.12));
  background: rgba(0, 0, 0, 0.26);
  box-shadow: 0 22px 65px rgba(0, 0, 0, 0.44);
  transform: translate3d(0, 0, 0);
  animation: float 12s ease-in-out infinite;
  animation-delay: var(--d, 0s);
  will-change: transform;
}

.tile--wide {
  grid-column: 1 / -1;
}

.tile__label {
  font-size: 12px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
}

.tile__value {
  margin-top: 8px;
  font-weight: 800;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.92);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-variant-numeric: tabular-nums;
}

.tile__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 10px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.62);
}

.tile--small .tile__meta {
  grid-template-columns: 1fr 1fr;
}

.beam {
  position: absolute;
  left: 10%;
  top: 54%;
  width: 80%;
  height: 2px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--scene-accent) 70%, transparent), transparent);
  filter: blur(0.2px);
  opacity: 0.85;
  animation: beam 5s ease-in-out infinite;
}

/* Panel scene */
.scene__visual--panel {
  overflow: hidden;
}

/* Panel sitzt wie Tilegrid mit identischem Inset */
.panel--wrg {
  position: absolute;
  inset: 18px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.30);
  box-shadow: 0 26px 80px rgba(0, 0, 0, 0.50);
  overflow: hidden;
  z-index: 2;
}

.panel__line {
  height: 2px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--scene-accent) 70%, transparent), transparent);
  opacity: 0.70;
}

/* Grid: Label | freier Hub (Ring) | Werte */
.panel__grid {
  --rowH: 48px;
  position: relative;
  display: grid;
  grid-template-columns: 92px 170px 1fr;
  grid-auto-rows: var(--rowH);
}

/* Zeilentrenner wie im UI, ohne extra DOM pro Row */
.panel__grid::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(to bottom,
      transparent 0,
      transparent calc(var(--rowH) - 1px),
      rgba(255, 255, 255, 0.08) calc(var(--rowH) - 1px),
      rgba(255, 255, 255, 0.08) var(--rowH));
  pointer-events: none;
  opacity: 0.85;
  z-index: 0;
}

.panel__hub {
  grid-column: 2;
  grid-row: 1 / -1;
  display: grid;
  place-items: center;
  z-index: 1;
}

.panel__label,
.panel__value {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.76);
  padding: 0 14px;
}

.panel__label {
  grid-column: 1;
}

.panel__value {
  grid-column: 3;
  justify-content: flex-end;
  gap: 10px;
}

.chip {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.032);
  color: rgba(255, 255, 255, 0.86);
  font-weight: 800;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.dot-ok,
.dot-idle {
  width: 12px;
  height: 12px;
  border-radius: 99px;
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.dot-ok {
  background: color-mix(in srgb, var(--scene-accent) 65%, rgba(255, 255, 255, 0.22));
  animation: pulse 4.8s ease-in-out infinite;
}

.dot-idle {
  background: rgba(255, 255, 255, 0.10);
}

/* Ring ist jetzt echtes Center-Element im Hub (nicht mehr hinter Text) */
.eff-ring {
  position: relative;
  opacity: 0.95;
  filter: drop-shadow(0 20px 50px rgba(0, 0, 0, 0.55));
}

.eff-ring svg {
  width: 148px;
  height: 148px;
}

.eff-arc {
  stroke-dashoffset: 0;
  opacity: 0.92;
  animation: arcWobble 8s ease-in-out infinite;
}

.eff-arc--x {
  opacity: 0.72;
  animation-duration: 10s;
}

/* Animations */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes spinReverse {
  to {
    transform: rotate(-360deg);
  }
}

@keyframes counterCcw {
  from {
    transform: rotate(var(--angleNeg, 0deg)) rotate(0deg);
  }

  to {
    transform: rotate(var(--angleNeg, 0deg)) rotate(-360deg);
  }
}

@keyframes counterCw {
  from {
    transform: rotate(var(--angleNeg, 0deg)) rotate(0deg);
  }

  to {
    transform: rotate(var(--angleNeg, 0deg)) rotate(360deg);
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-7px);
  }
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
    opacity: 0.42;
  }

  50% {
    transform: scale(1.02);
    opacity: 0.72;
  }
}

@keyframes sweep {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

@keyframes beam {

  0%,
  100% {
    opacity: 0.25;
  }

  50% {
    opacity: 0.95;
  }
}

@keyframes arcWobble {

  0%,
  100% {
    stroke-dashoffset: 0;
    opacity: 0.80;
  }

  50% {
    stroke-dashoffset: 6;
    opacity: 0.98;
  }
}

@keyframes dash {

  0%,
  100% {
    stroke-dashoffset: 60;
    opacity: 0.75;
  }

  50% {
    stroke-dashoffset: 10;
    opacity: 0.95;
  }
}

@keyframes channelAirWave {
  0% {
    stroke-dashoffset: 36;
    opacity: 0.52;
  }

  45% {
    opacity: 0.92;
  }

  100% {
    stroke-dashoffset: 0;
    opacity: 0.58;
  }
}

@keyframes channelFlowGlow {
  0%,
  100% {
    opacity: 0.34;
  }

  50% {
    opacity: 0.76;
  }
}

@keyframes channelArrowNudge {
  0%,
  100% {
    transform: translateX(0);
    opacity: 0.64;
  }

  50% {
    transform: translateX(1.6px);
    opacity: 0.96;
  }
}

@media (prefers-reduced-motion: reduce) {

  .orbit__ring,
  .tile,
  .beam,
  .eff-arc,
  .orbit__core::before,
  .module-visual__scan,
  .schema-stage__flow,
  .schall-wavebank span,
  .schall-spectrum span,
  .module-ultra-ring,
  .dot-ok,
  .core__channel-wave,
  .core__channel-flow,
  .core__channel-arrow {
    animation: none !important;
  }

  .btn,
  .btn-primary,
  .btn-secondary,
  .btn-ghost,
  .btn-anim,
  .nav__dropdown-panel,
  .scene,
  .tri__icon,
  .toc__toggle,
  .mini-btn,
  .hx-slider,
  .icon-btn {
    transition: none !important;
    animation: none !important;
  }
}

/* Responsive */
@media (max-width: 980px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }

  .mock__body {
    grid-template-columns: 1fr;
  }

  .mock__left {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  }

  .mini-cards {
    grid-template-columns: 1fr;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .tri {
    grid-template-columns: 1fr;
  }

  .showcase {
    grid-template-columns: 1fr;
  }

  .scene__kpis {
    grid-template-columns: 1fr;
  }

  .tilegrid {
    grid-template-columns: 1fr;
    inset: 16px;
  }

  .tile--wide {
    grid-column: 1;
  }

  .tile__meta {
    grid-template-columns: 1fr 1fr;
  }

  .roadmap {
    grid-template-columns: 1fr;
  }

  .cta {
    grid-template-columns: 1fr;
  }

  .app-shell {
    grid-template-columns: 1fr;
  }

  .panel__grid {
    grid-template-columns: 86px 150px 1fr;
    --rowH: 46px;
  }

  .eff-ring svg {
    width: 136px;
    height: 136px;
  }

}

@media (max-width: 860px) {
  .nav {
    display: none;
  }

  .icon-btn {
    display: inline-block;
  }

  .mobile-nav:not([hidden]) {
    display: block;
  }
}

/* ------------------------------------------------------------
   Formelbox (Unterseite)
   ------------------------------------------------------------ */
.sr-only {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.page-formulas {
  height: 100dvh;
  overflow: hidden;
}

.page-formulas .header {
  top: 0;
}

.section--formula {
  padding: 24px 0;
  height: calc(100dvh - 72px);
  overflow: hidden;
}

.formula-page {
  height: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
  width: min(1360px, calc(100% - 48px));
}

.section__head--tight {
  margin-bottom: 12px;
  overflow: hidden;
  max-height: 180px;
  /* generous cap for title + description; collapses to 0 on scroll */
  opacity: 1;
  transition: max-height 350ms ease, opacity 350ms ease, margin-bottom 350ms ease;
}

.formula-page.head-collapsed .section__head--tight {
  max-height: 0;
  opacity: 0;
  margin-bottom: 0;
}

.formula-shell {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 280px 1fr;
  overflow: hidden;
  position: relative;
}

.formula-toc {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.032), rgba(255, 255, 255, 0.02));
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.toc__head {
  padding: 16px 14px 12px 14px;
  display: grid;
  gap: 10px;
}

.toc__title {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.toc__search input {
  width: 100%;
}

.toc__tools {
  display: flex;
}

.toc__toggle {
  width: 100%;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: rgba(255, 255, 255, 0.82);
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.toc__toggle:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.14);
}

.toc__toggle:active {
  transform: translateY(1px);
}

.toc__toggle-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.22);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.06);
}

.toc__toggle[aria-pressed="true"] .toc__toggle-dot {
  background: rgba(64, 210, 255, 0.85);
  box-shadow: 0 0 0 4px rgba(64, 210, 255, 0.14);
}

/* Einheiten‑Filter (links in der Formelbox) */
.unitfilter {
  margin-top: 10px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.unitfilter>summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.84);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 10px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: background 160ms ease, border-color 160ms ease;
}

.unitfilter>summary::-webkit-details-marker {
  display: none;
}

.unitfilter>summary::after {
  content: "▾";
  opacity: 0.75;
  transition: transform 160ms ease;
}

.unitfilter[open]>summary::after {
  transform: rotate(-180deg);
}

.unitfilter>summary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.12);
}

.unitfilter__body {
  margin-top: 10px;
  padding: 10px 10px 6px 10px;
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  gap: 12px;
}

.unitfilter__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 2px;
}

.mini-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: rgba(255, 255, 255, 0.80);
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.mini-btn:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.16);
}

.mini-btn:active {
  transform: translateY(1px);
}

.unitgroup {
  display: grid;
  gap: 8px;
}

.unitgroup__head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.unitgroup__title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: rgba(255, 255, 255, 0.58);
}

.unitgroup__clear {
  margin-left: auto;
  font: inherit;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: rgba(255, 255, 255, 0.68);
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease;
}

.unitgroup__clear:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.14);
}

.unitgroup__clear:disabled {
  opacity: 0.45;
  cursor: default;
}

.unitchips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.unit-chip {
  font: inherit;
  font-size: 13px;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: rgba(255, 255, 255, 0.78);
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.unit-chip:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.14);
}

.unit-chip:active {
  transform: translateY(1px);
}

.unit-chip[aria-pressed="true"] {
  background: rgba(64, 210, 255, 0.12);
  border-color: rgba(64, 210, 255, 0.24);
  color: rgba(255, 255, 255, 0.92);
}

.toc__nav {
  padding: 4px 8px 14px 8px;
  overflow: auto;
  min-height: 0;
}

.toc__nav .toc__group {
  margin: 10px 0;
}

.toc__nav .toc__group-title {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  letter-spacing: 0.10em;
  padding: 11px 10px 8px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  line-height: 1.3;
}

.toc__nav .toc__group-link {
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  flex: 1;
  user-select: none;
  padding: 2px 0;
  font-size: inherit;
  line-height: inherit;
  overflow: visible;
}

.toc__nav .toc__group-link:hover {
  background: none;
  opacity: 1;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.toc__nav .toc__group-toggle {
  background: none;
  border: none;
  padding: 2px 4px;
  cursor: pointer;
  color: inherit;
  flex-shrink: 0;
  line-height: 1;
}

.toc__nav .toc__toggle-chev::before {
  content: '▾';
  opacity: 0.7;
  display: inline-block;
  transition: transform 200ms ease;
}

.toc__nav .toc__group-toggle[aria-expanded="false"] .toc__toggle-chev::before {
  transform: rotate(-90deg);
}

.toc__nav a.toc__item {
  display: block;
  padding: 8px 10px;
  border-radius: 12px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.76);
}

.toc__nav a.toc__item:hover {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.90);
}

.toc__nav a.toc__item[aria-current="true"] {
  background: rgba(64, 210, 255, 0.10);
  border: 1px solid rgba(64, 210, 255, 0.22);
  color: rgba(255, 255, 255, 0.92);
}

.toc__nav .toc__item {
  padding-left: 12px;
}

.formula-scroll {
  min-height: 0;
  overflow: auto;
  padding: 14px;
  scroll-behavior: smooth;
}

/* Intentional page override: formulas content centers within a wider shell than .container. */
.page-formulas .formula-scroll {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-formulas .formula-scroll > * {
  width: min(100%, 980px);
}

/* Einheiten‑Quickfilter (oben in der Formelbox) */
.formula-topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  margin: 0 0 14px 0;
  padding: 10px 12px;
  background: rgba(10, 14, 20, 0.66);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 18px;
  backdrop-filter: blur(16px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.28);
  transition: margin 180ms ease, padding 180ms ease, background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.formula-topbar:not([open]) {
  margin-bottom: 8px;
  padding-top: 8px;
  padding-bottom: 8px;
  background: rgba(10, 14, 20, 0.54);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.22);
}

.unitbar__row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.unitbar__label {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: rgba(255, 255, 255, 0.86);
  margin-right: 4px;
  white-space: nowrap;
}

.unitbar {
  flex: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  min-width: 0;
}

.unit-pill {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.82);
  padding: 8px 12px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease, opacity 160ms ease;
}

.unit-pill:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.16);
  transform: translateY(-1px);
}

.unit-pill:active {
  transform: translateY(0px);
}

.unit-pill.is-selected {
  background: rgba(128, 96, 255, 0.14);
  border-color: rgba(128, 96, 255, 0.38);
  box-shadow: 0 0 0 4px rgba(128, 96, 255, 0.10);
  color: rgba(255, 255, 255, 0.92);
}

.unit-pill.is-disabled {
  opacity: 0.28;
  cursor: not-allowed;
  transform: none !important;
}

.unit-pill.is-disabled:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.10);
}

.unitbar__hint {
  margin-top: 8px;
  line-height: 1.45;
}

/* Mobile: Quickfilter horizontal scroll statt Wrap */
@media (max-width: 860px) {
  .unitbar {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
  }

  .unitbar::-webkit-scrollbar {
    height: 6px;
  }

  .unitbar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.10);
    border-radius: 99px;
  }
}

.formula-section {
  margin: 8px 0 16px 0;
  border-left: 3px solid transparent;
  padding-left: 12px;
}

.formula-section__head {
  display: grid;
  gap: 6px;
  margin: 6px 0 10px 0;
}

.formula-section__head h2 {
  margin: 0;
  font-size: 18px;
}

.formula-section__head p {
  margin: 0;
  color: rgba(255, 255, 255, 0.66);
  line-height: 1.6;
}

.formula-card {
  margin: 10px 0;
  display: grid;
  gap: 10px;
}

.formula-card__head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
}

.formula-card__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.formula-card__actions {
  display: flex;
  gap: 8px;
}

.faction {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: rgba(255, 255, 255, 0.82);
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.faction:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.16);
  transform: translateY(-1px);
}

.faction:active {
  transform: translateY(0px);
}

.faction svg {
  opacity: 0.92;
}

.formula-card__head h3 {
  margin: 0;
  font-size: 16px;
}

.formula-card__head p {
  margin: 6px 0 0 0;
  color: rgba(255, 255, 255, 0.66);
  line-height: 1.5;
}

.formula-card__tag {
  font-size: 12px;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: rgba(255, 255, 255, 0.70);
  white-space: nowrap;
}

.formula-eq {
  margin-top: 0;
  display: grid;
  gap: 5px;
  padding: 11px 13px;
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.10);
}

.eq-line {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.92);
  letter-spacing: 0.01em;
}

.eq-unit {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.62);
}

/* KaTeX formula display */
.eq-latex {
  display: flex;
  justify-content: center;
  padding: 4px 0 8px;
  overflow-x: auto;
  color: rgba(255, 255, 255, 0.95);
}

.eq-latex .katex {
  font-size: 1.15em;
}

.eq-latex .katex-display {
  margin: 0;
}

/* KaTeX color overrides for dark theme */
.eq-latex .katex,
.eq-latex .katex * {
  color: inherit;
}

.fio {
  margin-top: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* Herleitung / Ansatz (Details) – Abstände + Optik */
.f-derive {
  margin-top: 0;
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.10);
  overflow: hidden;
}

.f-derive>summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
  padding: 12px 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.86);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.f-derive>summary::-webkit-details-marker {
  display: none;
}

.f-derive>summary::after {
  content: "▾";
  font-size: 14px;
  line-height: 1;
  opacity: 0.75;
  transform: translateY(-1px);
  transition: transform 160ms ease;
}

.f-derive[open]>summary::after {
  transform: rotate(-180deg) translateY(1px);
}

.f-derive__body {
  padding: 0 14px 12px 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.f-derive__step {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.65;
}

.f-derive__step:first-child {
  margin-top: 12px;
}

.fio__col {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 12px;
}

.fio__title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 10px;
}

.frow {
  display: grid;
  grid-template-columns: 1fr 120px 92px;
  gap: 10px;
  align-items: center;
  margin: 8px 0;
}

.frow label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.74);
}

.page-formulas select {
  font: inherit;
  color: rgba(255, 255, 255, 0.90);
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 10px 10px;
  outline: none;
}

.page-formulas select:focus {
  border-color: rgba(64, 210, 255, 0.35);
  box-shadow: 0 0 0 3px rgba(64, 210, 255, 0.12);
}

.fout {
  font-variant-numeric: tabular-nums;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.formula-end {
  padding: 16px 8px 10px 8px;
}

.toast {
  position: absolute;
  right: 16px;
  bottom: 16px;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.42);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.88);
  font-size: 13px;
  backdrop-filter: blur(10px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.55);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 160ms ease, transform 160ms ease;
  pointer-events: none;
}

.toast--show {
  opacity: 1;
  transform: translateY(0);
}

/* Kompaktmodus (Formelbox) */
.page-formulas.is-compact .formula-shell {
  grid-template-columns: 240px 1fr;
}

.page-formulas.is-compact .formula-scroll {
  padding: 10px;
}

.page-formulas.is-compact .toc__head {
  padding: 14px 12px 10px 12px;
  gap: 8px;
}

.page-formulas.is-compact .toc__nav a {
  padding: 7px 10px;
  font-size: 13px;
}

.page-formulas.is-compact .formula-section {
  margin: 6px 0 12px 0;
}

.page-formulas.is-compact .formula-card {
  margin: 8px 0;
  gap: 8px;
}

.page-formulas.is-compact .formula-eq {
  padding: 9px 11px;
}

.page-formulas.is-compact .fio {
  gap: 10px;
}

.page-formulas.is-compact .fio__col {
  padding: 10px;
}

.page-formulas.is-compact .fio__title {
  margin-bottom: 8px;
}

.page-formulas.is-compact .frow {
  grid-template-columns: 1fr 104px 84px;
  gap: 8px;
  margin: 6px 0;
}

.page-formulas.is-compact input,
.page-formulas.is-compact select {
  padding: 8px 10px;
  border-radius: 11px;
}

@media (max-width: 980px) {
  .formula-page {
    width: calc(100% - 32px);
  }

  .formula-shell {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }

  .page-formulas .formula-scroll > * {
    width: 100%;
  }

  .formula-toc {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .toc__nav {
    max-height: 220px;
  }

  .fio {
    grid-template-columns: 1fr;
  }

  .frow {
    grid-template-columns: 1fr 1fr 1fr;
  }
}


/* Mobile TOC toggle button */
.toc__mob-btn {
  display: none;
  width: 100%;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 14px;
  color: rgba(255, 255, 255, 0.86);
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  text-align: left;
  align-items: center;
  justify-content: space-between;
  margin: 8px 8px 0 8px;
  width: calc(100% - 16px);
  transition: background 160ms ease, border-color 160ms ease;
}

.toc__mob-btn:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.16);
}

.toc__mob-chev {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-right: 2px solid rgba(255, 255, 255, 0.52);
  border-bottom: 2px solid rgba(255, 255, 255, 0.52);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 160ms ease;
  vertical-align: middle;
}

.formula-toc.toc--expanded .toc__mob-chev {
  transform: rotate(225deg) translateY(-2px);
}

@media (max-width: 860px) {
  .toc__mob-btn {
    display: flex;
  }

  .toc__title {
    display: none;
  }

  .formula-toc .toc__nav {
    display: none;
    overflow: hidden;
  }

  .formula-toc.toc--expanded .toc__nav {
    display: block;
    max-height: 200px;
    overflow-y: auto;
  }
}

@media (max-width: 560px) {
  .frow {
    grid-template-columns: 1fr 1fr;
  }

  .frow>label {
    grid-column: 1 / -1;
  }

  .section__head--tight h1 {
    font-size: 22px;
  }

  .section__head--tight p {
    font-size: 13px;
  }
}

/* Platzhalter (für leere/noch nicht gerenderte Bereiche) */
.placeholder {
  opacity: 0.72;
}

.placeholder .tri__title,
.placeholder .card__title,
.placeholder .road__title {
  color: rgba(255, 255, 255, 0.78);
}

.placeholder .tri__text,
.placeholder .card__text,
.placeholder .road__text {
  color: rgba(255, 255, 255, 0.62);
}

.placeholder .road__step {
  opacity: 0.45;
}


/* Umrechner (convert.html) */
.page-convert .formula-shell {
  grid-template-columns: 280px 1fr;
}

.page-convert .toc__title {
  letter-spacing: -0.01em;
}

.conv-card {
  padding: 16px 16px 14px 16px;
  margin: 0 18px 18px 18px;
}

.conv-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.conv-title {
  margin: 0;
  font-size: 16px;
  letter-spacing: -0.01em;
}

/* Einheiten‑Filter (links in der Formelbox) */
.unitfilter{
margin-top: 10px;
padding-top: 12px;
border-top: 1px solid rgba(255,255,255,0.08);
}
.unitfilter > summary{
list-style: none;
cursor: pointer;
user-select: none;
font-weight: 700;
color: rgba(255,255,255,0.84);
display: flex;
align-items: center;
justify-content: space-between;
gap: 10px;
padding: 10px 10px;
border-radius: 14px;
background: rgba(255,255,255,0.03);
border: 1px solid rgba(255,255,255,0.08);
transition: background 160ms ease, border-color 160ms ease;
}
.unitfilter > summary::-webkit-details-marker{ display:none; }
.unitfilter > summary::after{
content: "▾";
opacity: 0.75;
transition: transform 160ms ease;
}
.unitfilter[open] > summary::after{ transform: rotate(-180deg); }
.unitfilter > summary:hover{
background: rgba(255,255,255,0.05);
border-color: rgba(255,255,255,0.12);
}
.unitfilter__body{
margin-top: 10px;
padding: 10px 10px 6px 10px;
border-radius: 16px;
background: rgba(0,0,0,0.16);
border: 1px solid rgba(255,255,255,0.08);
display: grid;
gap: 12px;
}
.unitfilter__actions{
display: flex;
align-items: center;
gap: 10px;
padding-top: 2px;
}

.mini-btn{
display: inline-flex;
align-items: center;
justify-content: center;
gap: 8px;
padding: 8px 10px;
border-radius: 12px;
background: rgba(255,255,255,0.04);
border: 1px solid rgba(255,255,255,0.10);
color: rgba(255,255,255,0.80);
cursor: pointer;
transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}
.mini-btn:hover{ background: rgba(255,255,255,0.07); border-color: rgba(255,255,255,0.16); }
.mini-btn:active{ transform: translateY(1px); }

.unitgroup{
display: grid;
gap: 8px;
}
.unitgroup__head{
display: flex;
align-items: center;
gap: 10px;
}
.unitgroup__title{
font-size: 12px;
text-transform: uppercase;
letter-spacing: 0.10em;
color: rgba(255,255,255,0.58);
}
.unitgroup__clear{
margin-left: auto;
font: inherit;
font-size: 12px;
padding: 6px 10px;
border-radius: 999px;
background: rgba(255,255,255,0.03);
border: 1px solid rgba(255,255,255,0.10);
color: rgba(255,255,255,0.68);
cursor: pointer;
transition: background 160ms ease, border-color 160ms ease;
}
.unitgroup__clear:hover{ background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.14); }
.unitgroup__clear:disabled{ opacity: 0.45; cursor: default; }

.unitchips{
display: flex;
flex-wrap: wrap;
gap: 8px;
}
.unit-chip{
font: inherit;
font-size: 13px;
padding: 8px 10px;
border-radius: 999px;
background: rgba(255,255,255,0.03);
border: 1px solid rgba(255,255,255,0.10);
color: rgba(255,255,255,0.78);
cursor: pointer;
transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}
.unit-chip:hover{ background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.14); }
.unit-chip:active{ transform: translateY(1px); }
.unit-chip[aria-pressed="true"]{
background: rgba(64,210,255,0.12);
border-color: rgba(64,210,255,0.24);
color: rgba(255,255,255,0.92);
}

.toc__nav{
padding: 4px 8px 14px 8px;
overflow: auto;
min-height: 0;
}
.toc__nav .toc__group{
margin: 10px 0;
}
.toc__nav .toc__group-title{
font-size: 12px;
color: rgba(255,255,255,0.55);
text-transform: uppercase;
letter-spacing: 0.10em;
padding: 11px 10px 8px 10px;
display: flex;
align-items: center;
justify-content: space-between;
list-style: none;
line-height: 1.3;
}
.toc__nav .toc__group-link{
color: inherit;
text-decoration: none;
cursor: pointer;
flex: 1;
user-select: none;
padding: 2px 0;
font-size: inherit;
line-height: inherit;
overflow: visible;
}
.toc__nav .toc__group-link:hover{
background: none;
opacity: 1;
text-decoration: underline;
text-underline-offset: 3px;
}
.toc__nav .toc__group-toggle{
background: none;
border: none;
padding: 2px 4px;
cursor: pointer;
color: inherit;
flex-shrink: 0;
line-height: 1;
}
.toc__nav .toc__toggle-chev::before{
content: '▾';
opacity: 0.7;
display: inline-block;
transition: transform 200ms ease;
}
.toc__nav .toc__group-toggle[aria-expanded="false"] .toc__toggle-chev::before{
transform: rotate(-90deg);
}
.toc__nav a.toc__item{
display: block;
padding: 8px 10px;
border-radius: 12px;
font-size: 14px;
color: rgba(255,255,255,0.76);
position: relative;
overflow: hidden;
}
.toc__nav a.toc__item::before{
content: '';
position: absolute;
left: 0;
top: 0;
bottom: 0;
width: 3px;
background: transparent;
}
.toc__nav a.toc__item:hover{
background: rgba(255,255,255,0.06);
color: rgba(255,255,255,0.90);
}
.toc__nav a.toc__item[aria-current="true"]{
background: rgba(64,210,255,0.10);
border: 1px solid rgba(64,210,255,0.22);
color: rgba(255,255,255,0.92);
}
.toc__nav .toc__item{
padding-left: 12px;
}

/* NOTE: Legacy duplicate block for convert/formula area follows.
  Keep in sync with the earlier Formula section until CSS is fully modularized. */
.formula-scroll{
min-height: 0;
overflow: auto;
padding: 14px;
scroll-behavior: smooth;
}

.conv-body {
  margin-top: 12px;
}

.conv-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr auto 1fr;
  gap: 10px;
  align-items: end;
}

.conv-swap {
  display: flex;
  align-items: end;
  justify-content: center;
  padding-bottom: 2px;
}

.conv-result {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
}

.conv-result__lbl {
  font-size: 12px;
  color: var(--muted);
}

.conv-result__val {
  font-variant-numeric: tabular-nums;
}

.conv-row {
  display: grid;
  grid-template-columns: 1fr 220px auto;
  gap: 10px;
  align-items: end;
}

.conv-actions {
  display: flex;
  justify-content: flex-end;
}

.conv-outs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.out {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
}

.out__u {
  font-size: 12px;
  color: var(--muted);
}

.out__v {
  font-variant-numeric: tabular-nums;
}

.out__copy {
  padding: 6px 10px;
}

.conv-extra {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.conv-extra__grid {
  display: grid;
  grid-template-columns: 1fr 220px 1fr;
  gap: 10px;
  align-items: end;
  margin-top: 10px;
}

.conv-extra__out {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
}

@media (max-width: 980px) {
  .page-convert .formula-shell {
    grid-template-columns: 1fr;
  }

  .conv-grid {
    grid-template-columns: 1fr 1fr;
  }

  .conv-swap {
    display: none;
  }

  .conv-row {
    grid-template-columns: 1fr 1fr;
  }

  .conv-actions {
    justify-content: flex-start;
  }

  .conv-outs {
    grid-template-columns: 1fr;
  }

  .conv-extra__grid {
    grid-template-columns: 1fr;
  }
}



/* Unitfilter Dropdown (Formelbox & Umrechner) */
.unitdrop>summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
}

.unitdrop>summary::-webkit-details-marker {
  display: none;
}

.unitdrop__sum {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  padding: 2px 2px;
  width: 100%;
}

.unitdrop__title {
  font-weight: 800;
  letter-spacing: -0.02em;
  color: rgba(255, 255, 255, 0.90);
  white-space: nowrap;
}

.unitdrop__active {
  flex: 1;
  min-width: 0;
  display: flex;
  justify-content: flex-end;
}

.unitdrop__state {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.76);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.unitdrop__chev {
  width: 10px;
  height: 10px;
  border-right: 2px solid rgba(255, 255, 255, 0.52);
  border-bottom: 2px solid rgba(255, 255, 255, 0.52);
  transform: rotate(45deg);
  transition: transform 180ms ease;
}

.unitdrop[open] .unitdrop__chev {
  transform: rotate(225deg);
}

.unitdrop__body {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.formula-topbar:not([open]) .unitdrop__active {
  margin-left: auto;
}

.formula-topbar:not([open]) .unitdrop__state {
  padding-inline: 8px;
  font-size: 11px;
}

.unitdrop {
  transition: border-color 180ms ease, background 180ms ease;
}

.unitdrop:hover {
  border-color: rgba(255, 255, 255, 0.14);
}

.unitdrop>summary:focus-visible {
  outline: 2px solid rgba(64, 210, 255, 0.30);
  outline-offset: 4px;
  border-radius: 16px;
}

.unitdrop:hover .unitdrop__state {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.05);
}

.unitdrop[open] {
  background: rgba(10, 14, 20, 0.74);
  border-color: rgba(255, 255, 255, 0.14);
}

.unitdrop[open] .unitdrop__body {
  animation: unitdropIn 140ms ease;
}

@keyframes unitdropIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 860px) {
  .unitdrop__title {
    display: none;
  }
}

/* === Process Chain (Hero) === */
.process-chain {
  display: flex;
  align-items: center;
  gap: 0;
  margin-top: 18px;
  padding: 12px 16px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.032);
  border: 1px solid rgba(255, 255, 255, 0.10);
  overflow: hidden;
}

.pc-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
}

.pc-node__ico {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent1);
}

.pc-node--zul .pc-node__ico {
  background: rgba(64, 210, 255, 0.12);
  border-color: rgba(64, 210, 255, 0.28);
}

.pc-node__lbl {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.60);
  text-transform: uppercase;
}

.pc-connector {
  flex: 1;
  height: 2px;
  background: rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
  margin: 0 6px;
  border-radius: 2px;
  min-width: 14px;
  /* offset so dots stagger across the three connectors */
}

.pc-connector::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 40%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--accent1), transparent);
  animation: pc-flow 3.5s ease-in-out infinite;
  border-radius: 2px;
}

.pc-connector:nth-of-type(4)::after {
  animation-delay: -1.2s;
}

/* second connector */
.pc-connector:nth-of-type(6)::after {
  animation-delay: -2.4s;
}

/* third connector */
@keyframes pc-flow {
  0% {
    transform: translateX(-100%);
    opacity: 0;
  }

  15% {
    opacity: 1;
  }

  85% {
    opacity: 1;
  }

  100% {
    transform: translateX(350%);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pc-connector::after {
    animation: none;
    opacity: 0.5;
    transform: translateX(50%);
  }
}

/* === Principle card icons === */
.tri__icon {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(64, 210, 255, 0.12), rgba(139, 92, 255, 0.12));
  border: 1px solid rgba(255, 255, 255, 0.10);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  color: var(--accent1);
  transition: background 250ms ease, border-color 250ms ease;
}

.tri__card:hover .tri__icon {
  background: linear-gradient(135deg, rgba(64, 210, 255, 0.22), rgba(139, 92, 255, 0.18));
  border-color: rgba(255, 255, 255, 0.18);
}

.tri__icon svg {
  transition: transform 300ms ease;
}

.tri__card:hover .tri__icon svg {
  transform: scale(1.12);
}

/* === Feature card icon SVGs === */
.card__ico {
  display: flex;
  align-items: center;
  justify-content: center;
}

.card__ico svg {
  color: white;
}

.card:hover .card__ico {
  transition: box-shadow 250ms ease;
  box-shadow: 0 4px 16px rgba(64, 210, 255, 0.20);
}

/* === Roadmap progress bar === */
.road__bar-wrap {
  margin-top: 10px;
  height: 3px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.road__bar {
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--accent1), var(--accent2));
  width: 0%;
  transition: width 1.1s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-reduced-motion: reduce) {
  .road__bar {
    transition: none;
  }
}

/* === Formelbox – farbige Umrandung pro Thema ===
   Jedes Thema erhält einen eigenen Farbton für die Kartenumrandung
   und den TOC-Abschnittstitel, damit Themen auf einen Blick erkennbar sind. */
#sec-air .formula-card {
  border-color: rgba(64, 210, 255, 0.42);
}

/* cyan   – Strömung      */
#sec-dp .formula-card {
  border-color: rgba(107, 143, 255, 0.42);
}

/* indigo – Druckverlust  */
#sec-heat .formula-card {
  border-color: rgba(255, 147, 64, 0.42);
}

/* orange – Wärme         */
#sec-wrg .formula-card {
  border-color: rgba(255, 214, 64, 0.42);
}

/* amber  – WRG           */
#sec-sound .formula-card {
  border-color: rgba(185, 92, 255, 0.42);
}

/* violet – Schall        */
#sec-sia382 .formula-card {
  border-color: rgba(34, 197, 94, 0.42);
}

/* green  – SIA 382       */
#sec-sia180 .formula-card {
  border-color: rgba(34, 197, 160, 0.42);
}

/* teal   – SIA 180       */
#sec-psychro .formula-card {
  border-color: rgba(64, 180, 255, 0.42);
}

/* sky    – Psychrometrie */

/* Farbiger linker Strich pro Abschnitt (von der Überschrift bis zur letzten Formel) */
#sec-air    { border-left-color: rgba( 64, 210, 255, 0.55); }
#sec-dp     { border-left-color: rgba(107, 143, 255, 0.55); }
#sec-heat   { border-left-color: rgba(255, 147,  64, 0.55); }
#sec-wrg    { border-left-color: rgba(255, 214,  64, 0.55); }
#sec-sound  { border-left-color: rgba(185,  92, 255, 0.55); }
#sec-sia382 { border-left-color: rgba( 34, 197,  94, 0.55); }
#sec-sia180 { border-left-color: rgba( 34, 197, 160, 0.55); }
#sec-psychro{ border-left-color: rgba( 64, 180, 255, 0.55); }

.toc__group[data-section="air"]     .toc__group-title { color: rgba( 64, 210, 255, 0.80); }
.toc__group[data-section="dp"]      .toc__group-title { color: rgba(107, 143, 255, 0.80); }
.toc__group[data-section="heat"]    .toc__group-title { color: rgba(255, 147,  64, 0.80); }
.toc__group[data-section="wrg"]     .toc__group-title { color: rgba(255, 214,  64, 0.80); }
.toc__group[data-section="sound"]   .toc__group-title { color: rgba(185,  92, 255, 0.80); }
.toc__group[data-section="sia382"]  .toc__group-title { color: rgba( 34, 197,  94, 0.80); }
.toc__group[data-section="sia180"]  .toc__group-title { color: rgba( 34, 197, 160, 0.80); }
.toc__group[data-section="psychro"] .toc__group-title { color: rgba( 64, 180, 255, 0.80); }

/* Farbiger linker Strich pro Abschnitt auch in der TOC-Liste */
.toc__group[data-section="air"]     a.toc__item::before { background: rgba( 64, 210, 255, 0.55); }
.toc__group[data-section="dp"]      a.toc__item::before { background: rgba(107, 143, 255, 0.55); }
.toc__group[data-section="heat"]    a.toc__item::before { background: rgba(255, 147,  64, 0.55); }
.toc__group[data-section="wrg"]     a.toc__item::before { background: rgba(255, 214,  64, 0.55); }
.toc__group[data-section="sound"]   a.toc__item::before { background: rgba(185,  92, 255, 0.55); }
.toc__group[data-section="sia382"]  a.toc__item::before { background: rgba( 34, 197,  94, 0.55); }
.toc__group[data-section="sia180"]  a.toc__item::before { background: rgba( 34, 197, 160, 0.55); }
.toc__group[data-section="psychro"] a.toc__item::before { background: rgba( 64, 180, 255, 0.55); }

/* === Globaler, durchgehender Hintergrund statt Abschnitts-Reset === */
body {
  background-attachment: fixed;
}

.section,
.section--alt,
.section--showcase {
  background: transparent !important;
  border-image: none;
  border-top: 1px solid rgba(255, 255, 255, 0.03);
}

/* Abschnittsbezogene Dekolayer deaktivieren,
   damit der Body-Hintergrund sauber durchläuft */
.section::before,
.section::after,
.section--alt::after,
.section--showcase::before {
  display: none !important;
}

.formula-tools {
  margin: 0 0 18px;
  padding: 18px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 20px;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.14), transparent 32%),
    linear-gradient(180deg, rgba(9, 16, 28, 0.92), rgba(11, 19, 32, 0.82));
  box-shadow: 0 18px 44px rgba(2, 6, 23, 0.22);
  overflow: hidden;
  transition: margin 220ms ease, padding 220ms ease, border-color 220ms ease, background 220ms ease, box-shadow 220ms ease;
}

.formula-tools__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.formula-tools__bar-copy {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.formula-tools__bar-title {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(226, 232, 240, 0.64);
}

.formula-tools__summary {
  color: rgba(226, 232, 240, 0.86);
  font-size: 13px;
  line-height: 1.45;
}

.formula-tools__collapse {
  flex-shrink: 0;
}

.formula-tools__body {
  overflow: hidden;
  max-height: 900px;
  opacity: 1;
  transform: translateY(0);
  transition: max-height 280ms ease, opacity 180ms ease, transform 220ms ease;
}

.formula-tools.is-collapsed {
  margin-bottom: 10px;
  padding: 12px 16px;
  border-color: rgba(148, 163, 184, 0.12);
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.09), transparent 28%),
    linear-gradient(180deg, rgba(9, 16, 28, 0.82), rgba(11, 19, 32, 0.72));
  box-shadow: 0 12px 28px rgba(2, 6, 23, 0.18);
}

.formula-tools.is-collapsed .formula-tools__bar {
  margin-bottom: 0;
}

.formula-tools.is-collapsed .formula-tools__body {
  max-height: 0;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
}

.formula-tools__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  align-items: end;
}

.formula-tools__grid + .formula-tools__grid {
  margin-top: 12px;
}

.formula-tools__grid--secondary {
  grid-template-columns: minmax(0, 1.2fr) auto minmax(180px, 0.8fr);
}

.formula-tools__field {
  display: grid;
  gap: 6px;
}

.formula-tools__field--wide {
  grid-column: span 2;
}

.formula-tools__label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(226, 232, 240, 0.72);
}

.formula-tools__field select,
.formula-tools__field input {
  min-height: 42px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  background: rgba(15, 23, 42, 0.82);
  color: #e2e8f0;
}

.formula-tools__field input:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.formula-tools__actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.formula-tools__toggle-wrap {
  display: flex;
  align-items: center;
}

.formula-tools__toggle.is-active {
  border-color: rgba(250, 204, 21, 0.45);
  background: rgba(250, 204, 21, 0.12);
  color: #fef08a;
}

.formula-tools__status {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  background: rgba(15, 23, 42, 0.66);
  color: rgba(226, 232, 240, 0.78);
  font-weight: 600;
}

.formula-tools__status[data-tone="ok"] {
  color: #bbf7d0;
  border-color: rgba(34, 197, 94, 0.32);
}

.formula-tools__status[data-tone="warning"] {
  color: #fde68a;
  border-color: rgba(245, 158, 11, 0.3);
}

.formula-tools__strip {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.formula-tools__hint {
  margin: 12px 0 0;
  color: rgba(191, 219, 254, 0.7);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.formula-tools__chip,
.formula-tools__empty {
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(125, 211, 252, 0.18);
  background: rgba(14, 165, 233, 0.09);
  color: #dbeafe;
  font-size: 13px;
}

.formula-tools__chip {
  cursor: pointer;
  transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.formula-tools__chip:hover {
  transform: translateY(-1px);
  border-color: rgba(125, 211, 252, 0.36);
  background: rgba(14, 165, 233, 0.16);
}

.formula-tools__empty {
  display: inline-flex;
  align-items: center;
  color: rgba(191, 219, 254, 0.7);
}

.toc__group--special .toc__group-title {
  color: rgba(248, 250, 252, 0.9);
}

.toc__group--special .toc__group-link {
  cursor: default;
}

.formula-card__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.formula-card__status {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.24);
  color: #bbf7d0;
  font-size: 12px;
  font-weight: 700;
}

.formula-card__status[data-status="warning"] {
  background: rgba(245, 158, 11, 0.14);
  border-color: rgba(245, 158, 11, 0.28);
  color: #fde68a;
}

.formula-card__status[data-status="error"] {
  background: rgba(248, 113, 113, 0.14);
  border-color: rgba(248, 113, 113, 0.28);
  color: #fecaca;
}

.formula-card__feedback {
  margin: 14px 0 0;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  background: rgba(15, 23, 42, 0.46);
  color: rgba(226, 232, 240, 0.86);
  font-size: 13px;
}

.formula-card__feedback[data-status="warning"] {
  border-color: rgba(245, 158, 11, 0.3);
}

.formula-card__feedback[data-status="error"] {
  border-color: rgba(248, 113, 113, 0.3);
}

.faction--active {
  color: #fde68a;
  border-color: rgba(250, 204, 21, 0.42);
  background: rgba(250, 204, 21, 0.12);
}

.frow {
  position: relative;
}

.frow__meta {
  grid-column: 2 / 4;
  min-height: 18px;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 12px;
}

.frow--error .fval,
.frow--error .funit {
  border-color: rgba(248, 113, 113, 0.46) !important;
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.08);
}

.frow--warning .fval,
.frow--warning .funit {
  border-color: rgba(245, 158, 11, 0.4) !important;
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.06);
}

.fmsg {
  color: rgba(191, 219, 254, 0.88);
}

.fmsg--warning {
  color: #fde68a;
}

.fmsg--error {
  color: #fecaca;
}

.fdelta {
  color: #93c5fd;
  font-weight: 600;
}

@media (max-width: 1100px) {
  .formula-tools__grid,
  .formula-tools__grid--secondary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .formula-tools__field--wide {
    grid-column: span 1;
  }

  .formula-tools__actions {
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .formula-tools {
    padding: 14px;
  }

  .formula-tools__bar {
    align-items: flex-start;
    flex-direction: column;
  }

  .formula-tools__collapse {
    width: 100%;
  }

  .formula-tools__grid,
  .formula-tools__grid--secondary {
    grid-template-columns: 1fr;
  }

  .formula-tools__status {
    justify-content: flex-start;
  }

  .frow__meta {
    grid-column: 1 / -1;
  }
}

/* Formula surface polish */
.formula-card {
  background:
    radial-gradient(circle at top right, rgba(14, 165, 233, 0.08), transparent 34%),
    linear-gradient(180deg, rgba(9, 16, 30, 0.82), rgba(8, 15, 27, 0.9));
  border-width: 1px;
  box-shadow: 0 16px 36px rgba(2, 6, 23, 0.2);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.formula-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 46px rgba(2, 6, 23, 0.26);
  border-color: rgba(125, 211, 252, 0.28);
}

.formula-card__head h3 {
  letter-spacing: 0.01em;
}

.formula-card__head p {
  color: rgba(191, 219, 254, 0.82);
}

.formula-eq {
  margin-top: 12px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  background:
    radial-gradient(circle at 20% 0%, rgba(56, 189, 248, 0.1), transparent 36%),
    rgba(10, 17, 31, 0.72);
}

.eq-latex {
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.58);
  border: 1px solid rgba(148, 163, 184, 0.14);
}

.eq-line {
  font-size: 1.02rem;
  font-weight: 700;
  color: #f8fafc;
}

.eq-unit {
  margin-top: 6px;
  color: rgba(186, 230, 253, 0.9);
  font-size: 0.94rem;
}

.fio__title {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
  color: rgba(191, 219, 254, 0.68);
}

.fio__col:last-child .frow .fval {
  font-weight: 700;
  color: #e0f2fe;
  background: rgba(14, 116, 144, 0.18);
  border-color: rgba(56, 189, 248, 0.28);
}

.fio__col:last-child .frow .fval:focus {
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.14);
}

.faction {
  transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.faction:hover {
  transform: translateY(-1px);
}

.formula-tools .mini-btn {
  background: rgba(15, 23, 42, 0.78);
  border-color: rgba(148, 163, 184, 0.24);
  color: #dbeafe;
}

.formula-tools .mini-btn:hover {
  border-color: rgba(125, 211, 252, 0.36);
  background: rgba(14, 165, 233, 0.14);
}

.formula-tools .mini-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  border-color: rgba(148, 163, 184, 0.2);
  background: rgba(15, 23, 42, 0.44);
}

@media (prefers-reduced-motion: reduce) {
  .formula-card,
  .faction,
  .formula-tools__chip {
    transition: none;
  }

  .formula-card:hover,
  .faction:hover,
  .formula-tools__chip:hover {
    transform: none;
  }
}

@media (max-width: 720px) {
  .formula-eq {
    padding: 12px;
  }

  .eq-line {
    font-size: 0.98rem;
  }
}

/* Main page motion upgrade */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: calc(var(--reveal-i, 0) * 100ms);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

.scene[data-reveal] {
  transform: translateY(34px) scale(0.975);
  filter: blur(3px);
  transition:
    opacity 0.90s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.90s cubic-bezier(0.16, 1, 0.3, 1),
    filter 0.90s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: calc(var(--reveal-i, 0) * 160ms);
}

.scene[data-reveal].is-visible {
  transform: none;
  filter: blur(0);
}

@keyframes fadeUpEntrance {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: none; }
}

@keyframes fadeRightEntrance {
  from { opacity: 0; transform: translateX(44px); }
  to { opacity: 1; transform: none; }
}

.hero .kicker {
  animation: fadeUpEntrance 0.60s cubic-bezier(0.16, 1, 0.3, 1) 0.08s both;
}

.hero .hero__title {
  animation: fadeUpEntrance 0.72s cubic-bezier(0.16, 1, 0.3, 1) 0.20s both;
}

.hero .hero__lead {
  animation: fadeUpEntrance 0.65s cubic-bezier(0.16, 1, 0.3, 1) 0.34s both;
}

.hero .hero__actions {
  animation: fadeUpEntrance 0.60s cubic-bezier(0.16, 1, 0.3, 1) 0.48s both;
}

.hero .pill-list {
  animation: fadeUpEntrance 0.58s cubic-bezier(0.16, 1, 0.3, 1) 0.60s both;
}

.hero .process-chain {
  animation: fadeUpEntrance 0.58s cubic-bezier(0.16, 1, 0.3, 1) 0.72s both;
}

.hero__visual {
  perspective: 1200px;
  transform-style: preserve-3d;
  animation: fadeRightEntrance 0.90s cubic-bezier(0.16, 1, 0.3, 1) 0.24s both;
}

.section__head h2 {
  background: linear-gradient(
    108deg,
    rgba(255, 255, 255, 0.96) 0%,
    rgba(255, 255, 255, 0.78) 38%,
    #40D2FF 52%,
    rgba(255, 255, 255, 0.78) 66%,
    rgba(255, 255, 255, 0.96) 100%
  );
  background-size: 260% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: headingShimmer 6s cubic-bezier(0.4, 0, 0.2, 1) infinite;
  animation-delay: 0.4s;
}

@keyframes headingShimmer {
  0%, 100% { background-position: 100% 0; }
  45% { background-position: 0% 0; }
}

.hero__title {
  background: linear-gradient(
    108deg,
    #fff 0%,
    rgba(255, 255, 255, 0.88) 52%,
    #40D2FF 70%,
    rgba(255, 255, 255, 0.88) 84%,
    #fff 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.grid > .card,
.tri__card,
.road {
  --tx: 0deg;
  --ty: 0deg;
  --lift: 0px;
  --slidex: 0px;
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.grid > .card::after,
.tri__card::after,
.road::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    260px circle at var(--sx, -999px) var(--sy, -999px),
    rgba(64, 210, 255, 0.13) 0%,
    transparent 65%
  );
  pointer-events: none;
}

.grid > .card {
  transform: perspective(950px) rotateX(var(--tx)) rotateY(var(--ty)) translateY(var(--lift));
  transition:
    border-color 0.25s ease,
    transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.25s ease;
}

.grid > .card:hover {
  --lift: -5px;
  border-color: rgba(64, 210, 255, 0.30);
  box-shadow: 0 14px 44px rgba(0, 0, 0, 0.32), 0 0 0 1px rgba(64, 210, 255, 0.10);
}

.tri__card {
  transform: perspective(950px) rotateX(var(--tx)) rotateY(var(--ty)) translateY(var(--lift));
  transition:
    border-color 0.25s ease,
    transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.25s ease;
}

.tri__card:hover {
  --lift: -4px;
  border-color: rgba(64, 210, 255, 0.28);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.28);
}

.grid > .card .card__ico {
  transition:
    transform 0.30s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.30s ease,
    background 0.30s ease;
}

.grid > .card:hover .card__ico {
  transform: scale(1.20) rotate(-8deg);
  box-shadow: 0 6px 22px rgba(64, 210, 255, 0.40);
  background: linear-gradient(135deg, rgba(64, 210, 255, 0.95), rgba(139, 92, 255, 0.95));
}

.tri__card[data-num]::before {
  content: attr(data-num);
  position: absolute;
  bottom: -26px;
  right: 8px;
  font-size: 112px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.06em;
  color: rgba(255, 255, 255, 0.040);
  pointer-events: none;
  z-index: 0;
  user-select: none;
  transition: color 0.35s ease;
}

.tri__card[data-num]:hover::before {
  color: rgba(64, 210, 255, 0.09);
}

.road {
  transform: perspective(950px) rotateX(var(--tx)) rotateY(var(--ty)) translateX(var(--slidex));
  transition:
    border-color 0.25s ease,
    transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.25s ease;
}

.road:hover {
  --slidex: 5px;
  border-color: rgba(255, 255, 255, 0.22);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal],
  [data-reveal].is-visible {
    transition: none;
    opacity: 1;
    transform: none;
  }

  .hero .kicker,
  .hero .hero__title,
  .hero .hero__lead,
  .hero .hero__actions,
  .hero .pill-list,
  .hero .process-chain,
  .hero__visual {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .section__head h2 {
    animation: none;
    background-position: 0% 0;
  }

  .hero__title {
    -webkit-text-fill-color: unset;
    background: none;
  }

  .grid > .card,
  .tri__card,
  .road {
    transform: none;
    transition: none;
  }
}

/* Hero cinematic energy wave */
.hero {
  --hx: 50%;
  --hy: 50%;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  inset: -12%;
  pointer-events: none;
  z-index: 0;
}

.hero::before {
  background:
    radial-gradient(42% 36% at var(--hx) var(--hy), rgba(64, 210, 255, 0.10), transparent 78%),
    radial-gradient(34% 30% at 18% 22%, rgba(139, 92, 255, 0.08), transparent 74%),
    radial-gradient(28% 26% at 84% 72%, rgba(34, 197, 94, 0.06), transparent 72%);
  filter: blur(14px) saturate(1.1);
  animation: heroGlowDrift 16s ease-in-out infinite alternate;
}

.hero::after {
  display: none;
}

.hero__canvas {
  opacity: 0.58;
  filter: saturate(1.15) contrast(1.06) brightness(1.04);
}

.hero__visual .mock {
  transform: rotateX(var(--hrx, 0deg)) rotateY(var(--hry, 0deg));
  transition: transform 260ms cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
  box-shadow:
    0 18px 54px rgba(0, 0, 0, 0.42),
    0 0 0 1px rgba(64, 210, 255, 0.11),
    0 0 60px rgba(64, 210, 255, 0.18);
}

.scene__visual {
  transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) scale(var(--sz, 1));
  transition: transform 220ms cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
  will-change: transform;
}

.scene__visual .scene__pattern {
  transform: translate3d(var(--mx, 0px), var(--my, 0px), 18px);
}

.scene__visual .orbit,
.scene__visual .tilegrid,
.scene__visual .panel--wrg {
  transform: translateZ(24px);
  transition: transform 220ms cubic-bezier(0.16, 1, 0.3, 1);
}

.scene:hover .scene__visual .orbit,
.scene:hover .scene__visual .tilegrid,
.scene:hover .scene__visual .panel--wrg {
  transform: translateZ(36px);
}

@keyframes heroGlowDrift {
  0% {
    transform: translate3d(-1.5%, -1%, 0) scale(1);
  }
  50% {
    transform: translate3d(1.5%, 1.2%, 0) scale(1.03);
  }
  100% {
    transform: translate3d(-0.7%, 1.8%, 0) scale(1.01);
  }
}

@keyframes heroBeamSweep {
  0% {
    background-position: 125% 0, 0 0;
    opacity: 0.18;
  }
  28% {
    opacity: 0.55;
  }
  50% {
    opacity: 0.7;
  }
  72% {
    opacity: 0.5;
  }
  100% {
    background-position: -40% 0, 120px 70px;
    opacity: 0.2;
  }
}

@media (max-width: 860px) {
  .hero::before,
  .hero::after {
    inset: -6%;
  }

  .hero::after {
    opacity: 0.42;
    background-size: 260% 100%, 180px 180px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero::before,
  .hero::after {
    animation: none;
  }

  .hero::after {
    opacity: 0.2;
  }

  .scene__visual,
  .scene__visual .scene__pattern,
  .scene__visual .orbit,
  .scene__visual .tilegrid,
  .scene__visual .panel--wrg,
  .hero__visual .mock {
    transform: none;
    transition: none;
  }
}

/* Visual mode switcher: existing visuals stay intact, special layers are additive */
.visual-modes {
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(8, 12, 24, 0.6);
}

.visual-modes__btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 999px;
  min-height: 34px;
  padding: 0 14px;
  background: rgba(255, 255, 255, 0.03);
  color: rgba(255, 255, 255, 0.82);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.visual-modes__btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.08);
}

.visual-modes__btn.is-active {
  background: linear-gradient(120deg, rgba(64, 210, 255, 0.3), rgba(34, 197, 94, 0.22));
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.visual-modes__btn:focus-visible {
  outline: 2px solid rgba(64, 210, 255, 0.85);
  outline-offset: 2px;
}

.scene__special {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transform: translateY(8px) scale(0.99);
  transition: opacity 320ms ease, transform 320ms ease;
}

html[data-visual-mode='special'] .scene__special {
  opacity: 1;
  transform: translateY(0) scale(1);
}

html[data-visual-mode='calm'] .scene__special {
  opacity: 0.62;
  transform: none;
}

/* Scene 1: airflow tunnel */
.scene__special--flow {
  mix-blend-mode: screen;
}

.flowline {
  position: absolute;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(64, 210, 255, 0.8), transparent);
  filter: drop-shadow(0 0 8px rgba(64, 210, 255, 0.32));
  animation: flowSlide 3.8s linear infinite;
}

html[data-visual-mode='calm'] .flowline {
  animation-duration: 7.2s;
  opacity: 0.36;
  filter: drop-shadow(0 0 4px rgba(64, 210, 255, 0.2));
}

.flowline--a {
  width: 78%;
  left: 12%;
  top: 28%;
}

.flowline--b {
  width: 66%;
  left: 20%;
  top: 52%;
  animation-delay: -1.2s;
}

.flowline--c {
  width: 58%;
  left: 24%;
  top: 72%;
  animation-delay: -2.1s;
}

.flow-dot {
  position: absolute;
  left: var(--x);
  top: var(--y);
  transform: translate(-50%, -50%);
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(6, 12, 22, 0.64);
  color: rgba(255, 255, 255, 0.88);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  animation: flowDotFloat 2.7s ease-in-out infinite;
  animation-delay: var(--d, 0s);
}

html[data-visual-mode='calm'] .flow-dot {
  animation-duration: 5.4s;
  opacity: 0.72;
}

/* Scene 2: thermal map */
.scene__special--thermal {
  overflow: hidden;
}

.thermal-core {
  position: absolute;
  inset: 16% 14%;
  border-radius: 22px;
  background:
    radial-gradient(44% 36% at 32% 44%, rgba(34, 197, 94, 0.3), transparent 72%),
    radial-gradient(48% 34% at 70% 52%, rgba(245, 158, 11, 0.32), transparent 74%),
    radial-gradient(30% 28% at 86% 26%, rgba(239, 68, 68, 0.28), transparent 78%);
  filter: blur(1.4px) saturate(1.15);
  animation: thermalPulse 5.2s ease-in-out infinite;
}

html[data-visual-mode='calm'] .thermal-core {
  animation-duration: 10s;
  filter: blur(1px) saturate(1.04);
}

.thermal-ring {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
}

.thermal-ring--a {
  width: 220px;
  height: 220px;
  left: 8%;
  top: 10%;
  opacity: 0.42;
}

.thermal-ring--b {
  width: 180px;
  height: 180px;
  right: 8%;
  bottom: 8%;
  opacity: 0.36;
}

.thermal-points span {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: hsl(var(--h) 92% 58%);
  box-shadow: 0 0 0 6px color-mix(in srgb, hsl(var(--h) 92% 58%) 22%, transparent), 0 0 18px hsl(var(--h) 92% 58% / 0.6);
  animation: thermalBlink 1.6s ease-in-out infinite;
}

html[data-visual-mode='calm'] .thermal-points span {
  animation-duration: 3.6s;
  opacity: 0.62;
}

/* Scene 3: WRG hologram */
.scene__special--holo {
  mix-blend-mode: screen;
}

.holo-grid {
  position: absolute;
  inset: 14% 10%;
  border-radius: 18px;
  background:
    repeating-linear-gradient(0deg, rgba(64, 210, 255, 0.14) 0 1px, transparent 1px 18px),
    repeating-linear-gradient(90deg, rgba(64, 210, 255, 0.12) 0 1px, transparent 1px 20px);
  transform: perspective(700px) rotateX(55deg);
  transform-origin: 50% 100%;
  opacity: 0.52;
}

.holo-pulse {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(64, 210, 255, 0.4);
  box-shadow: 0 0 26px rgba(64, 210, 255, 0.24), inset 0 0 18px rgba(64, 210, 255, 0.18);
  animation: holoPulse 2.8s ease-out infinite;
}

html[data-visual-mode='calm'] .holo-pulse {
  animation-duration: 6.2s;
  opacity: 0.55;
}

.holo-tags {
  position: absolute;
  inset: auto 18px 14px;
  display: flex;
  justify-content: center;
  gap: 8px;
}

.holo-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 9px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(64, 210, 255, 0.16);
  color: rgba(255, 255, 255, 0.92);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

html[data-visual-mode='calm'] .holo-grid {
  opacity: 0.32;
}

html[data-visual-mode='calm'] .holo-tags span {
  background: rgba(64, 210, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.78);
}

@keyframes flowSlide {
  0% { transform: translateX(-8%) scaleX(0.92); opacity: 0.12; }
  25% { opacity: 0.68; }
  50% { transform: translateX(0) scaleX(1); opacity: 0.44; }
  100% { transform: translateX(8%) scaleX(1.08); opacity: 0.1; }
}

@keyframes flowDotFloat {
  0%, 100% { transform: translate(-50%, -50%) translateY(0); }
  50% { transform: translate(-50%, -50%) translateY(-4px); }
}

@keyframes thermalPulse {
  0%, 100% { filter: blur(1.4px) saturate(1.1); }
  50% { filter: blur(2.1px) saturate(1.25); }
}

@keyframes thermalBlink {
  0%, 100% { opacity: 0.45; transform: translate(-50%, -50%) scale(0.92); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

@keyframes holoPulse {
  0% { transform: translate(-50%, -50%) scale(0.78); opacity: 0.92; }
  70% { opacity: 0.24; }
  100% { transform: translate(-50%, -50%) scale(1.42); opacity: 0; }
}

@media (max-width: 860px) {
  .visual-modes {
    width: 100%;
    justify-content: center;
  }

  .visual-modes__btn {
    flex: 1;
  }

  .thermal-ring--a,
  .thermal-ring--b {
    transform: scale(0.86);
  }
}

@media (prefers-reduced-motion: reduce) {
  .scene__special,
  .flowline,
  .flow-dot,
  .thermal-core,
  .thermal-points span,
  .holo-pulse {
    animation: none;
  }

  .scene__special {
    transform: none;
    transition: none;
  }
}