:root {
  --noir: #050607;
  --graphite: #0d0f12;
  --card-bg: rgba(18, 20, 24, 0.75);
  --mist: #8e959e;
  --ivory: #f0f2f5;
  --lime: #4ade80;
  --neon-green: #39ff14;
  --amber: #eab308;
  --border-line: rgba(240, 242, 245, 0.12);
  --border-glow: rgba(57, 255, 20, 0.4);
  --font-serif: "Cormorant Garamond", Georgia, serif;
  --font-sans: "Manrope", system-ui, -apple-system, sans-serif;
  --font-tech: "Orbitron", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  background-color: var(--noir);
  color: var(--ivory);
  font-family: var(--font-sans);
  overflow-x: clip;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  scrollbar-color: #2a2e33 var(--noir);
}

::selection {
  background: var(--neon-green);
  color: var(--noir);
}

:focus-visible {
  outline: 1px solid var(--neon-green);
  outline-offset: 4px;
}

/* Film Grain Overlay */
.grain {
  position: fixed;
  inset: -50%;
  pointer-events: none;
  opacity: 0.055;
  z-index: 99;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  animation: grain 1.4s steps(6, end) infinite;
}

@keyframes grain {
  0% { transform: translate(0); }
  20% { transform: translate(-2%, 2%); }
  40% { transform: translate(2%, -2%); }
  60% { transform: translate(-3%, 1%); }
  80% { transform: translate(2%, 3%); }
  100% { transform: translate(0); }
}

/* Vignette */
.vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 98;
  background: radial-gradient(circle at center, transparent 45%, rgba(5,6,7,0.6) 100%);
}

/* HEADER */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 90;
  background: linear-gradient(to bottom, rgba(5,6,7,0.92), rgba(5,6,7,0.4) 75%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-line);
  padding: 18px 36px;
  transition: all 0.4s ease;
}

.header-container {
  max-width: 1560px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ivory);
}

.bull-icon {
  width: 22px;
  height: 22px;
  color: var(--neon-green);
}

.brand-text {
  font-family: var(--font-tech);
  font-size: 15px;
  letter-spacing: 0.28em;
  font-weight: 700;
  color: var(--ivory);
}

.brand-text.large {
  font-size: 26px;
  letter-spacing: 0.35em;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.3s;
}

.nav-link:hover, .nav-link.active {
  color: var(--neon-green);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* BUTTONS */
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 22px;
  border-radius: 9999px;
  border: 1px solid var(--border-line);
  background: rgba(18, 20, 24, 0.5);
  color: var(--ivory);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  text-decoration: none;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: all 0.35s ease;
}

.btn-ghost:hover {
  background: rgba(30, 35, 42, 0.85);
  border-color: var(--neon-green);
}

.btn-sound {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 18px;
  border-radius: 9999px;
  border: 1px solid var(--border-line);
  background: rgba(18, 20, 24, 0.4);
  color: var(--mist);
  cursor: pointer;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: all 0.3s;
}

.btn-sound:hover, .btn-sound.on {
  border-color: var(--neon-green);
  color: var(--ivory);
}

.sound-bars {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 12px;
}

.sound-bars span {
  display: block;
  width: 2px;
  height: 3px;
  background: currentColor;
  border-radius: 1px;
  transition: height 0.25s;
}

.btn-sound.on .sound-bars span {
  animation: eq-bars 1.1s ease-in-out infinite alternate;
}

.btn-sound.on .sound-bars span:nth-child(2) { animation-delay: 0.2s; }
.btn-sound.on .sound-bars span:nth-child(3) { animation-delay: 0.4s; }
.btn-sound.on .sound-bars span:nth-child(4) { animation-delay: 0.1s; }

@keyframes eq-bars {
  0% { height: 3px; }
  100% { height: 12px; }
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--neon-green);
}

/* HERO SCROLL CONTAINER */
.hero-container {
  position: relative;
  height: 900vh; /* Langere Scroll-Strecke für ultra-feine Frame-Schritte */
  width: 100%;
}

.sticky-canvas-wrapper {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 100%;
  overflow: hidden;
  background-color: var(--noir);
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* LOADER */
.loader-overlay {
  position: absolute;
  inset: 0;
  background: var(--noir);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.loader-overlay.fade-out {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-content {
  text-align: center;
  max-width: 320px;
  width: 80%;
}

.loader-title {
  font-family: var(--font-tech);
  font-size: 16px;
  letter-spacing: 0.35em;
  color: var(--ivory);
  display: block;
  margin-bottom: 24px;
}

.loader-bar-bg {
  height: 2px;
  width: 100%;
  background: var(--border-line);
  position: relative;
  overflow: hidden;
  border-radius: 2px;
}

.loader-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--neon-green);
  transition: width 0.2s ease;
}

.loader-status {
  display: block;
  font-size: 11px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--mist);
  margin-top: 16px;
}

/* LETTERBOX, ZÜNDBLITZ & VIBRATION */
.letterbox {
  position: absolute;
  left: 0;
  right: 0;
  height: 11vh;
  background: #000;
  z-index: 4;
  transition: transform 1.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.letterbox-top { top: 0; }
.letterbox-bottom { bottom: 0; }

.ignited .letterbox-top,
.past-intro .letterbox-top { transform: translateY(-100%); }

.ignited .letterbox-bottom,
.past-intro .letterbox-bottom { transform: translateY(100%); }

.hero-flash {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  opacity: 0;
  mix-blend-mode: screen;
  background: radial-gradient(ellipse 60% 38% at 50% 56%, rgba(240, 242, 245, 0.7), rgba(240, 242, 245, 0) 70%);
}

.igniting .hero-flash { animation: ignition-flash 1.2s cubic-bezier(0.16, 1, 0.3, 1); }
.igniting #hero-canvas { animation: ignition-shake 0.9s cubic-bezier(0.36, 0.07, 0.19, 0.97); }

@keyframes ignition-flash {
  0% { opacity: 0; }
  7% { opacity: 1; }
  100% { opacity: 0; }
}

@keyframes ignition-shake {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1.01); }
  10% { transform: translate3d(-3px, 2px, 0) scale(1.012); }
  20% { transform: translate3d(3px, -2px, 0) scale(1.012); }
  30% { transform: translate3d(-2px, 1px, 0) scale(1.011); }
  45% { transform: translate3d(2px, -1px, 0) scale(1.01); }
  60% { transform: translate3d(-1px, 1px, 0) scale(1.01); }
  80% { transform: translate3d(1px, 0, 0) scale(1.005); }
}

/* HUD & STAGES */
.hero-hud {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  padding: 0 5vw 13vh 6vw;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.hud-stage {
  max-width: 720px;
  transition: opacity 0.7s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
  transform: translateY(0);
  opacity: 1;
}

.hud-stage.hidden-stage {
  opacity: 0;
  transform: translateY(20px);
  position: absolute;
  pointer-events: none;
}

.tagline {
  font-family: var(--font-tech);
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--mist);
  padding-top: 18px;
  border-top: 1px solid var(--border-line);
  max-width: 440px;
}

.hero-title, .stage-title {
  font-family: var(--font-serif);
  font-size: clamp(52px, 7vw, 96px);
  font-weight: 300;
  line-height: 0.92;
  letter-spacing: -0.015em;
  margin-bottom: 26px;
  color: var(--ivory);
  text-wrap: balance;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.6);
}

.hero-title em, .stage-title em {
  font-style: italic;
  font-weight: 300;
  color: var(--ivory);
}

.hero-desc {
  font-size: 15px;
  line-height: 1.65;
  color: #b4bac2;
  max-width: 440px;
  font-weight: 300;
  margin-bottom: 26px;
}

.stage-figure {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin-bottom: 26px;
}

.figure-num {
  font-family: var(--font-serif);
  font-size: clamp(44px, 4.4vw, 64px);
  font-weight: 300;
  line-height: 1;
  color: var(--ivory);
  font-variant-numeric: lining-nums tabular-nums;
}

.figure-num small {
  font-family: var(--font-tech);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--neon-green);
  margin-left: 8px;
}

.figure-label {
  font-family: var(--font-tech);
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mist);
}

/* ZÜNDKNOPF: Start/Stop unter klappbarer Carbon-Abdeckung */
.ignition {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 24px;
  margin-top: 34px;
  padding: 0;
  background: none;
  border: 0;
  color: var(--ivory);
  cursor: pointer;
  text-align: left;
}

.ignition-dial {
  position: relative;
  width: 88px;
  height: 88px;
  flex: none;
  border-radius: 50%;
  border: 1px solid rgba(240, 242, 245, 0.22);
  background: radial-gradient(circle at 50% 30%, #1d2024, #0a0b0d 72%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 22px 40px -14px rgba(0, 0, 0, 0.95);
  display: grid;
  place-items: center;
  perspective: 260px;
}

.ignition-dial::before {
  content: "";
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  border: 1px solid rgba(57, 255, 20, 0.45);
  transition: border-color 0.4s ease, background-color 0.4s ease;
}

.ignition-core {
  position: relative;
  font-family: var(--font-tech);
  font-size: 9px;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  text-align: center;
  color: var(--ivory);
  padding-left: 0.24em;
}

.ignition-cover {
  position: absolute;
  top: 24px;
  left: 50%;
  width: 60px;
  height: 40px;
  margin-left: -30px;
  border-radius: 7px;
  border: 1px solid rgba(240, 242, 245, 0.2);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0) 45%),
    repeating-linear-gradient(45deg, #16181b 0 3px, #0d0e10 3px 6px);
  box-shadow: 0 10px 16px -6px rgba(0, 0, 0, 0.9);
  transform-origin: 50% 0;
  transform: rotateX(0deg);
  transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.ignition:hover .ignition-cover,
.ignition:focus-visible .ignition-cover {
  transform: rotateX(-62deg);
}

.ignition[aria-pressed="true"] .ignition-cover {
  transform: rotateX(-112deg);
}

.ignition[aria-pressed="true"] .ignition-dial::before {
  border-color: var(--neon-green);
  background-color: rgba(57, 255, 20, 0.08);
}

.ignition:active .ignition-dial {
  transform: scale(0.97);
}

.ignition-text {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ignition-label {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 400;
  line-height: 1;
}

.ignition-hint {
  font-family: var(--font-tech);
  font-size: 11px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--mist);
}

.ignition[aria-pressed="true"] .ignition-label {
  color: var(--neon-green);
}

/* RIGHT STAGE NAV */
.stage-nav {
  position: absolute;
  z-index: 6;
  right: 48px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 22px;
  z-index: 10;
}

.stage-indicator {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mist);
  display: flex;
  align-items: center;
  gap: 12px;
  transition: color 0.4s ease, transform 0.4s ease;
  cursor: pointer;
}

.stage-indicator:hover {
  color: var(--ivory);
}

.stage-indicator span {
  font-family: var(--font-tech);
  font-size: 11px;
  color: var(--ivory);
}

.stage-indicator.active {
  color: var(--neon-green);
  transform: translateX(-6px);
}

.stage-indicator.active span {
  color: var(--neon-green);
}

/* SHOWCASE SECTIONS */
.showcase-section, .specs-section, .duel-section, .video-showcase {
  padding: 120px 0;
  position: relative;
  border-top: 1px solid var(--border-line);
}

.section-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
}

.section-tag {
  font-family: var(--font-tech);
  font-size: 11px;
  letter-spacing: 0.35em;
  color: var(--neon-green);
  display: block;
  margin-bottom: 14px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(36px, 4.5vw, 64px);
  font-weight: 300;
  line-height: 1.05;
  margin-bottom: 18px;
}

.section-subtitle {
  font-size: 15px;
  color: var(--mist);
  max-width: 580px;
  line-height: 1.65;
  font-weight: 300;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 36px;
  margin-top: 54px;
}

/* WINDKANAL: Video + Rauchsonde über der getrackten Karosseriekontur */
.windtunnel-section {
  position: relative;
  padding-top: 140px;
  border-top: 1px solid var(--border-line);
  background: #030405;
}

.wt-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: end;
  margin-bottom: 64px;
}

.wt-head .section-title {
  font-size: clamp(48px, 6vw, 88px);
  line-height: 0.95;
  margin-bottom: 0;
}

.wt-head .section-title em {
  font-style: italic;
}

.wt-stage {
  position: relative;
  background: #000;
}

/* Video sitzt links, rechts bleibt Halle für den Nachlauf hinter dem Heck */
.wt-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 20 / 9;
  max-height: 100vh;
  overflow: hidden;
}

.wt-video {
  position: absolute;
  top: 0;
  left: 2%;
  width: 80%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.88) brightness(0.84);
  -webkit-mask-image: linear-gradient(to right, transparent 0, #000 7%, #000 88%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0, #000 7%, #000 88%, transparent 100%);
}

.wt-smoke {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  filter: drop-shadow(0 0 2px rgba(236, 240, 244, 0.35));
}

.wt-light {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(to bottom, #030405 0%, rgba(3, 4, 5, 0) 16%, rgba(3, 4, 5, 0) 70%, rgba(3, 4, 5, 0.92) 100%),
    linear-gradient(to right, rgba(3, 4, 5, 0.5), rgba(3, 4, 5, 0) 14%, rgba(3, 4, 5, 0) 86%, rgba(3, 4, 5, 0.6));
}

.wt-telemetry {
  position: absolute;
  left: 40px;
  right: 40px;
  bottom: 36px;
  z-index: 3;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
}

.wt-control {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  column-gap: 20px;
  row-gap: 14px;
  width: min(460px, 100%);
}

.wt-control .wt-label {
  grid-column: 1 / -1;
}

.wt-label {
  font-family: var(--font-tech);
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mist);
}

.wt-telemetry output {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 300;
  line-height: 1;
  color: var(--ivory);
  font-variant-numeric: lining-nums tabular-nums;
  min-width: 4.6em;
  text-align: right;
}

.wt-readout {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 14px;
}

#wt-speed {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 24px;
  background: transparent;
  cursor: pointer;
}

#wt-speed::-webkit-slider-runnable-track {
  height: 1px;
  background: linear-gradient(to right, var(--neon-green) var(--fill, 66%), rgba(240, 242, 245, 0.25) var(--fill, 66%));
}

#wt-speed::-moz-range-track {
  height: 1px;
  background: rgba(240, 242, 245, 0.25);
}

#wt-speed::-moz-range-progress {
  height: 1px;
  background: var(--neon-green);
}

#wt-speed::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 15px;
  height: 15px;
  margin-top: -7px;
  border-radius: 50%;
  background: var(--ivory);
  border: 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
}

#wt-speed::-moz-range-thumb {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--ivory);
  border: 0;
}

/* SPRINT VIDEOS GRID */
.sprint-videos-header {
  margin-top: 80px;
  text-align: left;
}

.video-card-inner video {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.tilt-card:hover .video-card-inner video {
  transform: scale(1.03);
}

.tilt-card-inner {
  position: relative;
  background: var(--card-bg);
  border-radius: 20px;
  border: 1px solid var(--border-line);
  overflow: hidden;
  transition: transform 0.25s ease-out, box-shadow 0.35s ease;
  transform-style: preserve-3d;
}

.tilt-card:hover .tilt-card-inner {
  border-color: var(--border-glow);
  box-shadow: 0 25px 60px -15px rgba(0,0,0,0.9);
}

.tilt-card img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.tilt-card:hover img {
  transform: scale(1.03);
}

.card-sheen {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,0.12), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.tilt-card:hover .card-sheen {
  opacity: 1;
}

.card-content {
  padding: 28px;
}

.card-badge {
  font-family: var(--font-tech);
  font-size: 11px;
  letter-spacing: 0.25em;
  color: var(--neon-green);
  display: block;
  margin-bottom: 8px;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 300;
  margin-bottom: 10px;
}

.card-p {
  font-size: 13.5px;
  color: var(--mist);
  line-height: 1.6;
  font-weight: 300;
}

/* VIDEO SHOWCASE */
.video-card-wide {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--border-line);
}

.video-wrapper {
  position: relative;
  aspect-ratio: 21/9;
  background: var(--graphite);
}

.video-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-overlay-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5,6,7,0.9) 0%, rgba(5,6,7,0.2) 60%, transparent 100%);
}

.video-caption {
  position: absolute;
  bottom: 40px;
  left: 48px;
  max-width: 540px;
}

.video-title {
  font-family: var(--font-serif);
  font-size: 38px;
  font-weight: 300;
  margin-bottom: 12px;
}

.video-desc {
  font-size: 14px;
  color: var(--mist);
  line-height: 1.6;
}

.drive-wide {
  margin-top: 54px;
}

.drive-wide + .card-grid {
  margin-top: 36px;
}

/* SPECS SECTION */
.specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: end;
}

.spec-list {
  border-top: 1px solid var(--border-line);
}

.spec-row {
  display: flex;
  justify-content: space-between;
  padding: 18px 0;
  border-bottom: 1px solid var(--border-line);
  font-size: 14px;
}

.spec-label {
  color: var(--mist);
  font-weight: 300;
}

.spec-value {
  color: var(--ivory);
  font-weight: 500;
}

.spec-value.highlight {
  font-family: var(--font-tech);
  color: var(--neon-green);
  font-weight: 700;
}

/* DUEL / FACE OFF */
.duel-box {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--border-line);
}

.duel-box video {
  width: 100%;
  height: auto;
  aspect-ratio: 21/9;
  object-fit: cover;
  display: block;
}

.duel-title em {
  font-style: italic;
}

.duel-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(5,6,7,0.9) 0%, rgba(5,6,7,0.4) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 64px;
  max-width: 560px;
}

.duel-title {
  font-family: var(--font-serif);
  font-size: clamp(34px, 4vw, 56px);
  font-weight: 300;
  margin-bottom: 16px;
}

.duel-desc {
  max-width: 340px;
  font-size: 14.5px;
  color: var(--mist);
  line-height: 1.6;
}

/* FOOTER */
.site-footer {
  border-top: 1px solid var(--border-line);
  padding: 80px 0 40px;
  background: var(--noir);
}

.footer-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 60px;
}

.footer-motto {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 20px;
  color: var(--mist);
  margin-top: 12px;
}

.footer-contact-box {
  text-align: right;
}

.footer-phone {
  font-family: var(--font-tech);
  font-size: 18px;
  color: var(--ivory);
  margin-bottom: 6px;
}

.footer-email {
  font-size: 14px;
  color: var(--mist);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--border-line);
  padding-top: 30px;
  font-size: 12px;
  color: var(--mist);
}

.back-to-top {
  color: var(--neon-green);
  text-decoration: none;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

@media (max-width: 900px) {
  .nav-links { display: none; }
  .specs-grid { grid-template-columns: 1fr; }
  .stage-nav { display: none; }
  .card-grid { grid-template-columns: 1fr; }
  .video-caption { left: 24px; bottom: 24px; right: 24px; }
  .duel-overlay { padding: 32px; max-width: 100%; }
  .wt-head { grid-template-columns: 1fr; gap: 24px; margin-bottom: 40px; }
  .wt-frame { aspect-ratio: 16 / 10; }
  .wt-video { left: -4%; width: 96%; }
  .wt-telemetry { position: static; padding: 28px 24px 0; flex-direction: column; align-items: stretch; }
  .wt-readout { flex-direction: row; justify-content: space-between; align-items: center; }
  .windtunnel-section { padding-bottom: 72px; }
}

@media (max-width: 600px) {
  .section-container { padding: 0 16px; }
  .card-grid { grid-template-columns: 1fr; gap: 24px; }
  .hero-hud { padding: 0 16px 14vh; }
  .hero-title, .stage-title { font-size: clamp(44px, 12vw, 60px); }
  .ignition { margin-top: 22px; gap: 18px; }
  .ignition-dial { width: 74px; height: 74px; }
  .ignition-cover { top: 19px; width: 52px; height: 34px; margin-left: -26px; }
  .letterbox { height: 7vh; }
  .header-actions .btn-ghost { display: none; }
  .site-header { padding: 14px 16px; }
  .duel-box video { aspect-ratio: 4 / 5; }
  .video-wrapper { aspect-ratio: 4 / 5; }
  .video-title { font-size: 30px; }
  .duel-overlay { justify-content: flex-end; background: linear-gradient(to top, rgba(5,6,7,0.95), rgba(5,6,7,0.2) 70%, transparent); padding: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  .igniting .hero-flash,
  .igniting #hero-canvas { animation: none; }
  .letterbox, .ignition-cover { transition: none; }
}

/* KURZ ERKLÄRT & FAQ */
.about-section {
  padding: 120px 0;
  border-top: 1px solid var(--border-line);
}

.about-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 64px;
  align-items: start;
}

.about-lead {
  font-size: 16px;
  line-height: 1.7;
  color: #b4bac2;
  font-weight: 300;
  max-width: 52ch;
}

.about-lead strong {
  color: var(--ivory);
  font-weight: 600;
}

.about-meta {
  margin-top: 28px;
  font-family: var(--font-tech);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.faq details {
  border-top: 1px solid var(--border-line);
}

.faq details:last-child {
  border-bottom: 1px solid var(--border-line);
}

.faq summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 26px 0;
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.2vw, 28px);
  font-weight: 400;
  line-height: 1.3;
  color: var(--ivory);
}

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

.faq summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-tech);
  font-size: 20px;
  color: var(--neon-green);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq details[open] summary::after {
  transform: rotate(45deg);
}

.faq details p {
  padding: 0 40px 28px 0;
  font-size: 15px;
  line-height: 1.7;
  color: #b4bac2;
  font-weight: 300;
  max-width: 62ch;
}

.faq a {
  color: var(--ivory);
  text-underline-offset: 3px;
}

.faq a:hover {
  color: var(--neon-green);
}

.footer-legal {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  align-items: center;
}

.footer-legal a {
  color: var(--mist);
  text-decoration: none;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.footer-legal a:hover {
  color: var(--ivory);
}

.footer-legal .back-to-top {
  color: var(--neon-green);
}

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-section { padding: 80px 0; }
  .footer-bottom { flex-direction: column; gap: 20px; }
}