/* Polyme landing page — design system ported from apps/desktop/src/styles/tokens.css */

:root {
  --bg-canvas: #0b0d13;
  --bg-card: #12151d;
  --bg-elev: #171b26;
  --text: #e8ebf4;
  --text-muted: #8b93a7;
  --text-strong: #ffffff;
  --muted-strong: #b6bccf;
  --border: rgba(148, 163, 184, 0.1);
  --border-strong: rgba(148, 163, 184, 0.18);
  --accent: #818cf8;
  --accent-strong: #a5b0ff;
  --accent-soft: rgba(99, 102, 241, 0.16);
  --success: #34d399;
  --warn: #fbbf24;
  --gradient-brand: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  --btn-bg: linear-gradient(135deg, #6366f1 0%, #7c5cf1 100%);
  --btn-bg-hover: linear-gradient(135deg, #7378f5 0%, #8b6cf5 100%);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --font-sans: "Inter", ui-sans-serif, system-ui, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  --t: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --content: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg-canvas);
  background-image:
    radial-gradient(1100px 520px at 18% -12%, rgba(99, 102, 241, 0.11), transparent 62%),
    radial-gradient(900px 480px at 92% -18%, rgba(168, 85, 247, 0.07), transparent 60%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection {
  background: rgba(99, 102, 241, 0.35);
  color: #fff;
}

img,
video,
canvas {
  max-width: 100%;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
}

.mono {
  font-family: var(--font-mono);
}

.wrap {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: linear-gradient(120deg, #818cf8 0%, #a855f7 55%, #c084fc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- nav ---------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(11, 13, 19, 0.72);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--text-strong);
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: -0.02em;
}

.brand svg {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(99, 102, 241, 0.35);
}

.nav-links {
  display: flex;
  gap: 24px;
  margin-left: auto;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color var(--t);
}

.nav-links a:hover {
  color: var(--text-strong);
}

.nav-soon {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-strong);
  background: var(--accent-soft);
  border: 1px solid rgba(129, 140, 248, 0.28);
  border-radius: 999px;
  padding: 6px 13px;
  white-space: nowrap;
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  padding: 168px 0 40px;
  overflow: hidden;
}

#hero-canvas {
  position: absolute;
  top: 0;
  right: -6%;
  width: 58%;
  height: 100%;
  pointer-events: none;
  opacity: 0.9;
}

.hero-content {
  position: relative;
  max-width: 640px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--muted-strong);
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 7px 15px;
  margin-bottom: 26px;
}

.hero-badge .pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.5);
  animation: pulse 2.4s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.45); }
  70% { box-shadow: 0 0 0 7px rgba(52, 211, 153, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

.hero h1 {
  margin: 0 0 22px;
  font-size: clamp(2.5rem, 5.4vw, 3.9rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.035em;
  color: var(--text-strong);
}

.hero-sub {
  margin: 0 0 30px;
  font-size: 1.13rem;
  line-height: 1.65;
  color: var(--text-muted);
  max-width: 560px;
}

.hero-sub strong {
  color: var(--muted-strong);
  font-weight: 600;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}

.pill {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted-strong);
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 7px 15px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gradient-brand);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  border-radius: var(--radius);
  padding: 13px 26px;
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  border: none;
  transition: transform var(--t), box-shadow var(--t), background var(--t), border-color var(--t);
}

.btn-primary {
  color: #fff;
  background: var(--btn-bg);
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.28), 0 8px 30px rgba(99, 102, 241, 0.18);
}

.btn-primary:hover {
  background: var(--btn-bg-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.38), 0 10px 36px rgba(99, 102, 241, 0.22);
}

.btn-ghost {
  color: var(--muted-strong);
  background: transparent;
  border: 1px solid var(--border-strong);
}

.btn-ghost:hover {
  color: var(--text-strong);
  border-color: rgba(148, 163, 184, 0.34);
  transform: translateY(-1px);
}

/* ---------- app mockup ---------- */

.mockup-section {
  position: relative;
  padding: 56px 0 0;
}

.mockup-glow {
  position: absolute;
  inset: auto 0 -120px;
  height: 340px;
  background: radial-gradient(560px 220px at 50% 30%, rgba(99, 102, 241, 0.16), transparent 70%);
  pointer-events: none;
}

.mockup-window {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 24px 70px rgba(0, 0, 0, 0.55),
    0 8px 24px rgba(99, 102, 241, 0.08);
}

.mockup-titlebar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
}

.tb-dots {
  display: flex;
  gap: 7px;
}

.tb-dots span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.22);
}

.tb-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0 auto;
}

.tb-engine {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.76rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.tb-engine::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
}

.mockup-body {
  display: grid;
  grid-template-columns: 232px 1fr;
  min-height: 430px;
}

.mockup-rail {
  border-right: 1px solid var(--border);
  padding: 18px 14px;
  background: rgba(10, 12, 17, 0.55);
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.rail-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  padding: 0 10px 10px;
}

.rail-step {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-muted);
}

.rail-step .n {
  width: 22px;
  height: 22px;
  flex: none;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.68rem;
  font-family: var(--font-mono);
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
}

.rail-step.done .n {
  border-color: transparent;
  background: rgba(52, 211, 153, 0.16);
  color: var(--success);
}

.rail-step.active {
  background: var(--accent-soft);
  color: var(--text-strong);
}

.rail-step.active .n {
  border-color: transparent;
  background: var(--gradient-brand);
  color: #fff;
}

.mockup-viewer {
  position: relative;
  background:
    radial-gradient(640px 340px at 50% 42%, rgba(99, 102, 241, 0.10), transparent 68%),
    #0d0f16;
}

#viewer-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.viewer-chip {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  border-radius: 999px;
  padding: 6px 12px;
  background: rgba(18, 21, 29, 0.85);
  border: 1px solid var(--border-strong);
  color: var(--muted-strong);
  backdrop-filter: blur(6px);
}

.viewer-chip.qa {
  top: 14px;
  right: 14px;
  color: var(--success);
  border-color: rgba(52, 211, 153, 0.3);
}

.viewer-chip.stage {
  bottom: 14px;
  left: 14px;
}

.viewer-chip.fmt {
  bottom: 14px;
  right: 14px;
}

/* ---------- sections ---------- */

.section {
  padding: 108px 0 0;
}

.section-head {
  max-width: 660px;
  margin-bottom: 48px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin: 0 0 14px;
}

.section-head h2 {
  margin: 0 0 16px;
  font-size: clamp(1.75rem, 3.4vw, 2.45rem);
  font-weight: 750;
  line-height: 1.14;
  letter-spacing: -0.03em;
  color: var(--text-strong);
}

.section-head p {
  margin: 0;
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* ---------- why local ---------- */

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 22px;
  align-items: stretch;
}

.why-cloud {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.why-col-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  padding-left: 2px;
}

.pain {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  flex: 1;
}

.pain h3 {
  margin: 0 0 7px;
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.015em;
  color: var(--muted-strong);
  display: flex;
  align-items: center;
  gap: 10px;
}

.pain h3::before {
  content: "✕";
  font-size: 0.72rem;
  color: #f87171;
  width: 20px;
  height: 20px;
  flex: none;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(248, 113, 113, 0.12);
}

.pain p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.why-polyme {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(155deg, rgba(99, 102, 241, 0.75), rgba(168, 85, 247, 0.45) 45%, rgba(99, 102, 241, 0.12));
}

.why-polyme-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  background:
    radial-gradient(420px 260px at 85% -10%, rgba(168, 85, 247, 0.14), transparent 65%),
    var(--bg-elev);
  border-radius: 15px;
  padding: 30px 32px;
}

.why-polyme-inner .why-col-label {
  color: var(--accent-strong);
  padding-left: 0;
  margin-bottom: 16px;
}

.why-polyme-inner h3 {
  margin: 0 0 14px;
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  font-weight: 750;
  line-height: 1.22;
  letter-spacing: -0.025em;
  color: var(--text-strong);
}

.why-polyme-inner > p {
  margin: 0 0 22px;
  font-size: 0.98rem;
  color: var(--muted-strong);
}

.why-checks {
  list-style: none;
  margin: auto 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.why-checks li {
  display: flex;
  gap: 11px;
  align-items: baseline;
  font-size: 0.94rem;
  color: var(--muted-strong);
}

.why-checks li::before {
  content: "✓";
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--success);
  width: 19px;
  height: 19px;
  flex: none;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(52, 211, 153, 0.13);
  transform: translateY(2px);
}

/* ---------- how it works ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  counter-reset: step;
}

.step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  transition: transform var(--t), border-color var(--t), box-shadow var(--t);
}

.step:hover {
  transform: translateY(-3px);
  border-color: rgba(129, 140, 248, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.step-num::after {
  content: "";
  height: 1px;
  flex: 1;
  background: linear-gradient(90deg, rgba(129, 140, 248, 0.35), transparent);
}

.step h3 {
  margin: 0 0 8px;
  font-size: 1.02rem;
  font-weight: 650;
  letter-spacing: -0.015em;
  color: var(--text-strong);
}

.step p {
  margin: 0 0 14px;
  font-size: 0.87rem;
  line-height: 1.55;
  color: var(--text-muted);
}

.step .tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  display: inline-block;
}

/* ---------- features ---------- */

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 22px;
  transition: transform var(--t), border-color var(--t), box-shadow var(--t);
}

.feature:hover {
  transform: translateY(-3px);
  border-color: rgba(129, 140, 248, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35), 0 4px 18px rgba(99, 102, 241, 0.1);
}

.feature-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  margin-bottom: 16px;
}

.feature-icon svg {
  width: 19px;
  height: 19px;
  stroke: var(--accent-strong);
}

.feature h3 {
  margin: 0 0 7px;
  font-size: 0.99rem;
  font-weight: 650;
  letter-spacing: -0.015em;
  color: var(--text-strong);
}

.feature p {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.55;
  color: var(--text-muted);
}

/* ---------- demo ---------- */

.demo-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    radial-gradient(720px 420px at 50% 46%, rgba(99, 102, 241, 0.12), transparent 66%),
    var(--bg-card);
  border: 1px solid var(--border-strong);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
  display: grid;
  place-items: center;
}

.demo-frame video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#demo-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
}

.demo-placeholder {
  position: relative;
  text-align: center;
  padding: 24px;
}

.demo-play {
  width: 74px;
  height: 74px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(18, 21, 29, 0.8);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(6px);
}

.demo-play svg {
  width: 24px;
  height: 24px;
  fill: var(--accent-strong);
  margin-left: 4px;
}

.demo-placeholder h3 {
  margin: 0 0 8px;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-strong);
}

.demo-placeholder p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
}

/* ---------- formats / requirements strip ---------- */

.strip {
  margin-top: 108px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(18, 21, 29, 0.45);
  padding: 44px 0;
}

.strip-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 22px;
}

.fmt-chip {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted-strong);
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  transition: color var(--t), border-color var(--t), transform var(--t);
}

.fmt-chip:hover {
  color: var(--text-strong);
  border-color: rgba(129, 140, 248, 0.4);
  transform: translateY(-2px);
}

.strip-note {
  text-align: center;
  font-size: 0.92rem;
  color: var(--text-muted);
  margin: 0;
}

.strip-note + .strip-note {
  margin-top: 8px;
}

.strip-note strong {
  color: var(--muted-strong);
  font-weight: 600;
}

/* ---------- final CTA ---------- */

.cta {
  position: relative;
  padding: 130px 0 120px;
  text-align: center;
  overflow: hidden;
}

.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(720px 380px at 50% 62%, rgba(99, 102, 241, 0.15), transparent 68%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  max-width: 620px;
  margin: 0 auto;
  padding: 0 24px;
}

.cta h2 {
  margin: 0 0 18px;
  font-size: clamp(2.1rem, 4.6vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.08;
  color: var(--text-strong);
}

.cta p {
  margin: 0 0 34px;
  font-size: 1.08rem;
  color: var(--text-muted);
}

.cta-domain {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent-strong);
}

/* ---------- footer ---------- */

.footer {
  border-top: 1px solid var(--border);
  padding: 30px 0 40px;
}

.footer-inner {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 0.86rem;
  color: var(--text-muted);
}

.footer-inner .spacer {
  flex: 1;
}

.footer-inner a {
  color: var(--text-muted);
  transition: color var(--t);
}

.footer-inner a:hover {
  color: var(--text-strong);
}

/* ---------- reveal animation ---------- */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s cubic-bezier(0.2, 0.6, 0.2, 1), transform 0.65s cubic-bezier(0.2, 0.6, 0.2, 1);
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ---------- responsive ---------- */

@media (max-width: 980px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  #hero-canvas {
    right: -22%;
    width: 82%;
    opacity: 0.34;
  }
}

@media (max-width: 700px) {
  .nav-links {
    display: none;
  }

  .nav-soon {
    margin-left: auto;
  }

  .hero {
    padding-top: 136px;
  }

  .mockup-body {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .mockup-rail {
    flex-direction: row;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 12px;
    scrollbar-width: thin;
    scrollbar-color: rgba(148, 163, 184, 0.25) transparent;
  }

  .mockup-rail::-webkit-scrollbar {
    height: 4px;
  }

  .mockup-rail::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.25);
    border-radius: 999px;
  }

  .rail-label {
    display: none;
  }

  .rail-step {
    white-space: nowrap;
    font-size: 0.8rem;
  }

  .mockup-viewer {
    min-height: 320px;
  }

  .viewer-chip.fmt {
    display: none;
  }

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

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

  .section {
    padding-top: 84px;
  }
}

/* ---------- showcase ---------- */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.showcase {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
}

.showcase-stage {
  position: relative;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    radial-gradient(640px 340px at 50% 42%, rgba(99, 102, 241, 0.1), transparent 68%),
    #0d0f16;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
}

.showcase-stage:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.showcase-slide {
  position: absolute;
  inset: 0;
}

/* `hidden` must beat the author-level `img, video { display: block }` above. */
.showcase-slide[hidden],
.showcase-caption[hidden],
.showcase-poster[hidden],
.showcase-video[hidden],
.showcase-qa-warning[hidden],
.showcase-hint[hidden],
.showcase-load[hidden],
.showcase-turntable[hidden] {
  display: none;
}

.showcase-viewer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  background: transparent;
  --poster-color: transparent; /* v4 already defaults to transparent — kept explicit */
  --progress-bar-color: var(--accent);
}

.showcase-poster,
.showcase-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: transparent;
}

.showcase-chips {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  z-index: 3;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  padding: 0 12px;
  pointer-events: none;
}

.showcase-chip {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  border-radius: 999px;
  padding: 6px 12px;
  background: rgba(18, 21, 29, 0.85);
  border: 1px solid var(--border-strong);
  color: var(--muted-strong);
  backdrop-filter: blur(6px);
  white-space: nowrap;
}

.showcase-chip.qa {
  color: var(--success);
  border-color: rgba(52, 211, 153, 0.3);
}

.showcase-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 4;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  padding: 0;
  border-radius: 50%;
  cursor: pointer;
  color: var(--muted-strong);
  background: rgba(11, 13, 19, 0.7);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(8px);
  transition: color var(--t), background var(--t), border-color var(--t);
}

.showcase-nav:hover {
  color: var(--text-strong);
  background: rgba(18, 21, 29, 0.88);
  border-color: rgba(129, 140, 248, 0.45);
}

.showcase-nav:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.showcase-nav svg {
  width: 20px;
  height: 20px;
}

.showcase-nav.prev {
  left: 12px;
}

.showcase-nav.next {
  right: 12px;
}

.showcase-load,
.showcase-turntable {
  position: absolute;
  left: 50%;
  z-index: 5;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  border-radius: var(--radius);
  padding: 11px 20px;
  transition: background var(--t), border-color var(--t), color var(--t);
}

.showcase-load {
  top: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  background: var(--btn-bg);
  border: none;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.28), 0 8px 30px rgba(99, 102, 241, 0.18);
}

.showcase-load:hover {
  background: var(--btn-bg-hover);
}

.showcase-load:disabled {
  opacity: 0.72;
  cursor: default;
}

.showcase-turntable {
  bottom: 56px;
  transform: translateX(-50%);
  font-size: 0.84rem;
  color: var(--muted-strong);
  background: rgba(18, 21, 29, 0.88);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(6px);
}

.showcase-turntable:hover {
  color: var(--text-strong);
  border-color: rgba(129, 140, 248, 0.45);
}

.showcase-load:focus-visible,
.showcase-turntable:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Textured / Geometry segmented control. showcase.js inserts it, and only after
   that slide's viewer has actually loaded — there is nothing to toggle on a
   poster, and the turntable fallback has no src to swap. Sits just above the
   chips row and speaks the same chip language. */
.showcase-modes {
  position: absolute;
  left: 50%;
  bottom: 52px;
  transform: translateX(-50%);
  z-index: 4;
  display: inline-flex;
  gap: 2px;
  padding: 2px;
  border-radius: 999px;
  background: rgba(11, 13, 19, 0.72);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(6px);
  transition: opacity var(--t);
}

/* Set while the swapped-in GLB is still downloading. */
.showcase-modes[aria-busy="true"] {
  opacity: 0.62;
}

.showcase-mode {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1;
  padding: 8px 14px;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  color: var(--text-muted);
  background: none;
  transition: color var(--t), background var(--t);
}

.showcase-mode:hover:not([aria-pressed="true"]):not(:disabled) {
  color: var(--text-strong);
}

.showcase-mode[aria-pressed="true"] {
  color: var(--text-strong);
  background: rgba(99, 102, 241, 0.24);
  box-shadow: inset 0 0 0 1px rgba(129, 140, 248, 0.45);
}

.showcase-mode:disabled {
  opacity: 0.45;
  cursor: default;
}

.showcase-mode:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.showcase-hint {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  margin: 0;
  padding: 5px 13px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  background: rgba(11, 13, 19, 0.6);
  pointer-events: none;
}

.showcase-captions {
  margin-top: 24px;
}

.showcase-prompt {
  margin: 0 0 8px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.showcase-label {
  color: var(--text-muted);
}

.showcase-prompt-text {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--muted-strong);
}

.showcase-result {
  margin: 0 0 16px;
  font-size: 0.95rem;
  color: var(--muted-strong);
}

.showcase-qa {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  padding: 0 16px;
}

.showcase-qa > summary {
  display: flex;
  align-items: center;
  gap: 9px;
  list-style: none;
  cursor: pointer;
  padding: 11px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

.showcase-qa > summary::before {
  content: "▸";
  font-size: 0.72rem;
  color: var(--accent);
  transition: transform var(--t);
}

.showcase-qa[open] > summary::before {
  transform: rotate(90deg);
}

.showcase-qa > summary:hover {
  color: var(--muted-strong);
}

.showcase-qa p {
  margin: 0 0 12px;
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--text-muted);
}

.showcase-qa-warning {
  display: flex;
  gap: 9px;
}

.showcase-qa-warning::before {
  content: "⚠";
  flex: none;
  color: var(--warn);
}

.showcase-dots {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-top: 20px;
}

.showcase-dot {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: none;
  cursor: pointer;
}

.showcase-dot::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.3);
  transition: background var(--t), box-shadow var(--t), transform var(--t);
}

.showcase-dot:hover::before {
  background: var(--accent-strong);
}

.showcase-dot[aria-selected="true"]::before {
  background: var(--accent);
  transform: scale(1.2);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.showcase-dot:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.showcase-note {
  margin: 18px 0 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

@media (max-width: 700px) {
  .showcase-stage {
    aspect-ratio: 1 / 1;
    overflow: visible; /* the nav buttons move below the well */
  }

  .showcase-slide {
    border-radius: var(--radius-lg);
    overflow: hidden;
  }

  .showcase-hint {
    display: none;
  }

  .showcase-nav {
    top: calc(100% + 14px);
    transform: none;
  }

  .showcase-nav.prev {
    left: 0;
  }

  .showcase-nav.next {
    right: 0;
  }

  .showcase-captions {
    padding-top: 62px;
  }

  .showcase-chip {
    font-size: 0.68rem;
    padding: 5px 10px;
  }

  .showcase-turntable {
    bottom: 52px;
  }

  .showcase-modes {
    bottom: 48px;
  }

  /* Thumb targets, not mouse targets. */
  .showcase-mode {
    min-height: 44px;
    padding: 0 18px;
  }
}

/* No JS: the carousel can't run, so every model is shown stacked with its caption.
   `display: contents` lets the stage's slides and the captions interleave in one column. */
.no-js .reveal {
  opacity: 1;
  transform: none;
}

.no-js .showcase {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.no-js .showcase-stage,
.no-js .showcase-captions {
  display: contents;
}

.no-js .showcase-nav,
.no-js .showcase-hint,
.no-js .showcase-dots,
.no-js .showcase-load,
.no-js .showcase-turntable {
  display: none;
}

.no-js .showcase-slide {
  display: block;
  position: relative;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    radial-gradient(640px 340px at 50% 42%, rgba(99, 102, 241, 0.1), transparent 68%),
    #0d0f16;
}

.no-js .showcase-caption {
  display: block;
}

/* One pair of rules per hero: `display: contents` flattens the stage and the
   caption list into one column, so without an explicit order the browser would
   stack all six slides and then all six captions. Extend both ladders (and the
   note's order) when the showcase grows. */
.no-js .showcase-slide:nth-of-type(1) { order: 1; }
.no-js .showcase-caption:nth-of-type(1) { order: 2; }
.no-js .showcase-slide:nth-of-type(2) { order: 3; }
.no-js .showcase-caption:nth-of-type(2) { order: 4; }
.no-js .showcase-slide:nth-of-type(3) { order: 5; }
.no-js .showcase-caption:nth-of-type(3) { order: 6; }
.no-js .showcase-slide:nth-of-type(4) { order: 7; }
.no-js .showcase-caption:nth-of-type(4) { order: 8; }
.no-js .showcase-slide:nth-of-type(5) { order: 9; }
.no-js .showcase-caption:nth-of-type(5) { order: 10; }
.no-js .showcase-slide:nth-of-type(6) { order: 11; }
.no-js .showcase-caption:nth-of-type(6) { order: 12; }
.no-js .showcase-note { order: 13; }

@media (prefers-reduced-motion: reduce) {
  .showcase-nav,
  .showcase-load,
  .showcase-turntable,
  .showcase-modes,
  .showcase-mode,
  .showcase-dot::before,
  .showcase-qa > summary::before {
    transition: none;
  }
}

/* ---------- showcase gallery strip ---------- */

.showcase-gallery {
  margin: 56px auto 0;
}

.showcase-gallery-head {
  margin: 0 0 20px;
  text-align: center;
  font-size: 1.02rem;
  font-weight: 650;
  letter-spacing: -0.015em;
  color: var(--muted-strong);
}

/* Explicit column counts, not auto-fit: six items must divide evenly at every
   breakpoint — auto-fit lands on five and orphans the wyvern onto its own row. */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}

.gallery-item {
  margin: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 10px 10px 12px;
  transition: transform var(--t), border-color var(--t), box-shadow var(--t);
}

.gallery-item:hover {
  transform: translateY(-3px);
  border-color: rgba(129, 140, 248, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.gallery-item img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  background:
    radial-gradient(220px 140px at 50% 42%, rgba(99, 102, 241, 0.1), transparent 68%),
    #0d0f16;
}

.gallery-item figcaption {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  margin-top: 10px;
  padding: 0 2px;
}

.gallery-title {
  font-size: 0.78rem;
  line-height: 1.35;
  color: var(--text-muted);
}

.gallery-chip {
  flex: none;
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  border-radius: 999px;
  padding: 3px 8px;
  color: var(--success);
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.28);
  white-space: nowrap;
}

.gallery-note {
  margin: 16px 0 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ---------- numbers band ---------- */

.numbers-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-strong);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.number {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 28px 24px;
  background: rgba(18, 21, 29, 0.7);
}

.number-fig {
  font-size: clamp(1.5rem, 2.7vw, 2rem);
  font-weight: 750;
  line-height: 1.05;
  letter-spacing: -0.03em;
  background: linear-gradient(120deg, #818cf8 0%, #a855f7 55%, #c084fc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.number-label {
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.numbers-note {
  margin: 18px 0 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* the showcase tie-in inside "how it works" step 01 — beats `.step p` */
.step .step-tie {
  margin: -6px 0 14px;
  font-size: 0.83rem;
  line-height: 1.5;
  color: var(--muted-strong);
}

@media (max-width: 980px) {
  .numbers-band {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 700px) {
  .numbers-band {
    grid-template-columns: 1fr;
  }

  .number {
    padding: 22px 20px;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .showcase-gallery {
    margin-top: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero-badge .pulse {
    animation: none;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}