/* Hero v2 — warm editorial hero.
   Skeleton borrowed from raindrop.ai, palette from hazel.ai.
   Scope: body.home-page #simulator only. /app, docs, blog and other public pages are untouched. */

@font-face {
  font-family: "Instrument Serif";
  src: url("/site-assets/fonts/instrument-serif-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Instrument Serif";
  src: url("/site-assets/fonts/instrument-serif-400-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

/* ---------- tokens (light) ---------- */
.home-page {
  --w-canvas: #fffdfa;
  --w-warm: #fdf3e7;
  --w-ink: #252525;
  --w-ink-2: #4a453d;
  --w-muted: #6f6a60;
  --w-label: #7e7669;
  --w-cream: #ffefd9;
  --w-amber: #feaf42;
  --w-orange: #ff6624;
  --w-hair: rgba(37, 37, 37, 0.1);
  --w-hair-soft: rgba(37, 37, 37, 0.06);
  --w-serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --w-shadow: 0 40px 80px -44px rgba(96, 62, 24, 0.42), 0 10px 26px -14px rgba(96, 62, 24, 0.18);
}

.home-page #simulator {
  position: relative;
  isolation: isolate;
  background:
    radial-gradient(880px 520px at 88% -6%, rgba(255, 175, 66, 0.32), transparent 70%),
    radial-gradient(620px 430px at 2% 16%, rgba(255, 239, 217, 0.85), transparent 72%),
    linear-gradient(180deg, var(--w-canvas) 0%, var(--w-warm) 58%, var(--w-warm) 100%);
}

/* ---------- tokens (dark) ---------- */
[data-theme="dark"] .home-page {
  --w-canvas: #14100c;
  --w-warm: #1b1510;
  --w-ink: #fbf7f1;
  --w-ink-2: #e0d7c8;
  --w-muted: #b3a897;
  --w-label: #9a9083;
  --w-hair: rgba(255, 255, 255, 0.1);
  --w-hair-soft: rgba(255, 255, 255, 0.06);
  --w-shadow: 0 40px 80px -46px rgba(0, 0, 0, 0.7), 0 10px 26px -16px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .home-page #simulator {
  background:
    radial-gradient(880px 520px at 88% -6%, rgba(255, 102, 36, 0.26), transparent 70%),
    radial-gradient(620px 430px at 2% 16%, rgba(255, 175, 66, 0.1), transparent 72%),
    linear-gradient(180deg, #14100c 0%, #1b1510 58%, #1b1510 100%);
}

/* ---------- ambient ---------- */
.home-page #simulator .hero-glow-a {
  background: radial-gradient(closest-side, rgba(255, 175, 66, 0.5), transparent 72%);
  opacity: 0.75;
  animation: hero-drift 22s ease-in-out infinite;
}
.home-page #simulator .hero-glow-b {
  background: radial-gradient(closest-side, rgba(255, 102, 36, 0.22), transparent 70%);
  opacity: 0.6;
  animation: hero-drift 28s ease-in-out infinite reverse;
}
.home-page #simulator .hero-grid {
  background-image:
    linear-gradient(var(--w-hair-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--w-hair-soft) 1px, transparent 1px);
  opacity: 0.9;
}
@keyframes hero-drift {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-28px, 22px, 0) scale(1.06); }
}

/* ---------- hand-off into the next section ---------- */
.home-page #workflow {
  background: linear-gradient(180deg,
    var(--w-warm) 0,
    color-mix(in srgb, var(--w-warm) 45%, var(--page)) 150px,
    var(--page) 300px);
}

/* ---------- header (home only) ---------- */
.home-page .site-header {
  background: color-mix(in srgb, var(--w-canvas) 86%, transparent);
  border-bottom: 1px solid var(--w-hair-soft);
  backdrop-filter: blur(14px);
}
.home-page .site-header .nav-cta,
.home-page .site-header .btn-primary {
  background: var(--w-ink);
  color: #fffdfa;
  border: 1px solid transparent;
  border-radius: 999px;
  box-shadow: none;
}
[data-theme="dark"] .home-page .site-header .nav-cta,
[data-theme="dark"] .home-page .site-header .btn-primary { background: var(--w-cream); color: #2a2118; }
.home-page .site-header .nav-cta:hover,
.home-page .site-header .btn-primary:hover { transform: translateY(-1px); }

/* ---------- two-column shell ---------- */
.home-page #simulator .page-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  align-items: center;
  gap: clamp(28px, 4vw, 64px);
  padding-block: clamp(44px, 6svh, 88px) clamp(52px, 7svh, 96px);
}
.home-page #simulator .home-intro {
  min-height: 0;
  margin-bottom: 0;
  padding-block: 0;
  gap: clamp(22px, 3svh, 34px);
  animation: none;
}

/* ---------- type ---------- */
.home-page #simulator .hero-eyebrow-dot {
  background: var(--w-orange);
  box-shadow: 0 0 0 0 rgba(255, 102, 36, 0.28);
}
.home-page #simulator .hero-eyebrow-rule { background: var(--w-hair); }

.home-page #simulator #hero-title {
  font-family: var(--w-serif);
  font-size: clamp(46px, 5.4vw, 80px);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.035em;
  color: var(--w-ink);
  text-wrap: balance;
  animation: hero-rise 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) 0.06s both;
}

.home-page #simulator .home-intro-action { gap: 22px; animation: hero-rise 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) 0.16s both; }
.home-page #simulator .home-intro-action > p:first-child {
  font-size: clamp(16.5px, 1.25vw, 19px);
  line-height: 1.55;
  max-width: 46ch;
  text-wrap: pretty;
  color: var(--w-muted);
}

/* CJK display sizes: Instrument Serif has no CJK glyphs, and CJK needs looser
   leading plus no negative tracking, or the second line wraps into an orphan. */
html:lang(zh) .home-page #simulator #hero-title,
html:lang(ja) .home-page #simulator #hero-title,
html:lang(ko) .home-page #simulator #hero-title {
  font-size: clamp(34px, 3.9vw, 54px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

/* ---------- actions ---------- */
.home-page #simulator .home-actions { gap: 14px 22px; }
.home-page #simulator .home-actions .btn-primary,
.home-page #simulator .home-actions .btn {
  min-height: 50px;
  padding-inline: 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  border: 1px solid transparent;
  background: var(--w-ink);
  color: #fffdfa;
  box-shadow: 0 14px 30px -16px rgba(37, 37, 37, 0.55);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
[data-theme="dark"] .home-page #simulator .home-actions .btn-primary,
[data-theme="dark"] .home-page #simulator .home-actions .btn {
  background: var(--w-cream);
  color: #2a2118;
  box-shadow: 0 14px 30px -16px rgba(0, 0, 0, 0.6);
}
.home-page #simulator .home-actions .btn-primary:hover,
.home-page #simulator .home-actions .btn:hover { transform: translateY(-2px); }

.home-page #simulator .home-text-link {
  color: var(--w-ink-2);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--w-hair);
}
.home-page #simulator .home-text-link:hover { color: var(--w-orange); border-bottom-color: var(--w-orange); }
.home-page #simulator .home-note {
  color: var(--w-label);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- stage ---------- */
.hero-stage { position: relative; }
.hero-stage .home-evidence { margin-top: 0; }

/* ---------- product frame ---------- */
.home-page #simulator .home-evidence {
  margin: 0;
  position: relative;
  border: 1px solid var(--w-hair);
  border-radius: 20px;
  background: #fff;
  box-shadow: var(--w-shadow);
  transform: rotate(-1.2deg);
  animation: hero-float 9s ease-in-out infinite;
  transition: transform 0.5s cubic-bezier(0.2, 0.7, 0.2, 1);
}
[data-theme="dark"] .home-page #simulator .home-evidence { background: #1d1812; }
.home-page #simulator .home-evidence:hover { transform: rotate(-1.2deg) translateY(-4px); border-color: rgba(255, 102, 36, 0.4); }
.home-page #simulator .home-evidence::after {
  content: "";
  position: absolute;
  inset: 0;
  width: auto;
  height: auto;
  border: 0;
  pointer-events: none;
  border-radius: inherit;
  background: linear-gradient(160deg, rgba(255, 239, 217, 0.16), rgba(255, 255, 255, 0) 55%);
}
.home-page #simulator .home-evidence-head {
  border-bottom: 1px solid var(--w-hair-soft);
  background: color-mix(in srgb, #fffdfa 92%, transparent);
}
[data-theme="dark"] .home-page #simulator .home-evidence-head { background: rgba(29, 24, 18, 0.92); }
.home-page #simulator .home-evidence-head h2 {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--w-label);
}
.home-page #simulator .home-evidence-head a { color: var(--w-ink-2); font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; }
.home-page #simulator .home-evidence img { filter: saturate(0.86) sepia(0.07) brightness(1.02); }
.home-page #simulator .home-evidence figcaption {
  border-top: 1px solid var(--w-hair-soft);
  color: var(--w-label);
  font-size: 10.5px;
  line-height: 1.5;
}

/* ---------- illustrative answer card ---------- */
.hero-answer {
  position: absolute;
  z-index: 3;
  left: clamp(-30px, -3vw, -12px);
  top: 26%;
  width: min(300px, 80%);
  padding: 15px 16px 16px;
  border-radius: 16px;
  border: 1px solid rgba(254, 175, 66, 0.55);
  background: color-mix(in srgb, #fffdfa 88%, transparent);
  backdrop-filter: blur(16px);
  box-shadow: 0 26px 60px -32px rgba(120, 70, 20, 0.55);
  animation: hero-float 6.5s ease-in-out infinite -1.2s;
  transform: rotate(1.4deg);
}
[data-theme="dark"] .hero-answer { background: rgba(29, 24, 18, 0.86); border-color: rgba(255, 175, 66, 0.35); }
.hero-answer-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--w-label, #7e7669);
  margin-bottom: 7px;
}
.hero-answer-q { margin: 0 0 8px; font-size: 11.5px; line-height: 1.45; color: var(--w-muted, #6f6a60); }
.hero-answer-a { margin: 0; font-size: 12.5px; line-height: 1.5; color: var(--w-ink-2, #4a453d); }
[data-theme="dark"] .hero-answer-a { color: #e0d7c8; }
.hero-answer-a b { color: var(--w-orange, #ff6624); font-weight: 600; }
.hero-answer-chips { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 11px; }
.hero-answer-chips span {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  padding: 3px 7px;
  border-radius: 999px;
  background: rgba(37, 37, 37, 0.05);
  color: var(--w-ink-2, #4a453d);
}
[data-theme="dark"] .hero-answer-chips span { background: rgba(255, 255, 255, 0.08); color: #e0d7c8; }
.hero-answer-chips span:first-child { background: rgba(254, 175, 66, 0.3); color: #6e3b0b; font-weight: 600; }
[data-theme="dark"] .hero-answer-chips span:first-child { background: rgba(254, 175, 66, 0.22); color: #ffd7a6; }

/* ---------- engine marquee ---------- */
.hero-marquee {
  position: relative;
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: clamp(10px, 2vw, 26px);
  padding: 15px 0 22px;
  overflow: hidden;
}
.hero-marquee-label {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--w-label);
  padding-left: max(24px, calc((100vw - 1180px) / 2));
  white-space: nowrap;
}
.hero-marquee-viewport {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 3.5%, #000 93%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 3.5%, #000 93%, transparent 100%);
}
.hero-marquee-track {
  display: flex;
  width: max-content;
  gap: 30px;
  animation: hero-marquee 36s linear infinite;
  animation-delay: -4s;
}
.hero-marquee:hover .hero-marquee-track { animation-play-state: paused; }
.hero-marquee-track span {
  display: flex;
  align-items: center;
  gap: 30px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--w-ink-2);
  white-space: nowrap;
}
.hero-marquee-track span::after {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--w-amber);
  opacity: 0.75;
}
@keyframes hero-marquee { to { transform: translateX(-50%); } }

/* ---------- motion ---------- */
@keyframes hero-float {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -11px; }
}
@keyframes hero-rise {
  from { opacity: 1; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 1023px) {
  .home-page #simulator .page-shell {
    grid-template-columns: minmax(0, 1fr);
    padding-block: 36px 48px;
  }
  .home-page #simulator .home-evidence { transform: none; animation: none; margin-top: 18px; }
  .home-page #simulator .home-evidence:hover { transform: none; }
  .hero-answer { position: static; width: auto; transform: none; margin: 0 0 14px; animation: none; }
  .hero-marquee-label { padding-left: 20px; }
}
@media (max-width: 640px) {
  .home-page #simulator #hero-title { font-size: clamp(36px, 10.4vw, 48px); }
  .home-page #simulator .home-actions .btn { width: 100%; justify-content: center; }
  .home-page #simulator .home-actions .home-text-link { width: 100%; text-align: center; border-bottom: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .home-page #simulator .hero-glow-a,
  .home-page #simulator .hero-glow-b,
  .home-page #simulator .home-evidence,
  .hero-answer,
  .hero-marquee-track { animation: none !important; }
}