/* ============================================================
   XXIST — style.css : components, layout, motion
   ============================================================ */

/* ---------- Preloader ---------- */
#preloader {
  position: fixed; inset: 0; z-index: 1000;
  background: var(--bg-0);
  display: grid; place-items: center;
  transition: opacity 700ms var(--ease-out), visibility 700ms var(--ease-out);
}
#preloader.done { opacity: 0; visibility: hidden; pointer-events: none; }
.pre-word {
  font-family: 'Roboto', system-ui, sans-serif;
  font-weight: 500;
  font-size: clamp(2rem, 7vw, 4.5rem);
  letter-spacing: 0.01em;
  color: var(--ivory);
  opacity: 0;
  text-align: center;
}
.pre-word .amber { color: var(--amber); }
.pre-skip {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: var(--text-xs);
  letter-spacing: 0.25em; text-transform: uppercase; color: var(--stone);
  transition: color var(--t-fast);
}
.pre-skip:hover { color: var(--mist); }

/* ---------- Header ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: var(--header-h);
  display: flex; align-items: center;
  transition: height var(--t-med), background var(--t-med), border-color var(--t-med), backdrop-filter var(--t-med);
  border-bottom: 1px solid transparent;
}
.site-header.condensed {
  height: 60px;
  /* Solid-ish background instead of a heavy backdrop blur. A large blur radius
     repainted every scroll frame over the live WebGL canvas is a top cause of
     scroll jank — a near-opaque fill looks just as premium and is GPU-cheap. */
  background: rgba(10,10,11,0.92);
  border-bottom: 1px solid var(--line);
}
@supports (backdrop-filter: blur(8px)) {
  .site-header.condensed {
    background: rgba(10,10,11,0.74);
    backdrop-filter: blur(8px) saturate(130%);
    -webkit-backdrop-filter: blur(8px) saturate(130%);
  }
}
.header-inner {
  max-width: var(--maxw); width: 100%; margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
}
.brand { display: inline-flex; align-items: center; gap: 0.62rem; color: var(--ivory); }
.brand svg { width: 26px; height: 26px; color: var(--ivory); }
.brand-mark {
  width: 26px; height: 26px; object-fit: contain; display: block;
  transition: transform var(--t-med);
}
.brand:hover .brand-mark { transform: rotate(90deg); }
.brand-word {
  font-family: 'Space Grotesk', var(--font-body), sans-serif;
  font-weight: 600; font-size: 1.04rem;
  letter-spacing: 0.3em; text-transform: uppercase;
  /* indent compensates for the trailing tracking so the lockup stays optically centered */
  padding-left: 0.06em; line-height: 1;
}

/* Nav links grouped into a sleek capsule for a more cohesive, premium menu */
.nav-links {
  display: flex; align-items: center; gap: 0.15rem;
  padding: 0.3rem 0.4rem; border-radius: 100px;
  border: 1px solid transparent;
  transition: background var(--t-med), border-color var(--t-med);
}
.site-header.condensed .nav-links {
  background: rgba(244,241,234,0.03);
  border-color: rgba(244,241,234,0.08);
}
.nav-links a {
  font-size: var(--text-sm); color: var(--mist); letter-spacing: 0.01em;
  transition: color var(--t-fast), background var(--t-fast);
  position: relative; padding: 0.4rem 0.85rem; border-radius: 100px;
}
.nav-links a::after {
  content: ""; position: absolute; left: 50%; right: 50%; bottom: 0.18rem; height: 1px;
  background: var(--ivory); opacity: 0;
  transition: left var(--t-med), right var(--t-med), opacity var(--t-fast);
}
.nav-links a:hover { color: var(--ivory); }
.nav-links a:hover::after { left: 0.85rem; right: 0.85rem; opacity: 0.5; }
.nav-links a[aria-current="page"] {
  color: var(--ivory);
  background: rgba(244,241,234,0.06);
}
.nav-links a[aria-current="page"]::after { opacity: 0; }
.header-cta { display: inline-flex; align-items: center; gap: 1rem; }

.btn {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-size: var(--text-sm); font-weight: 500; letter-spacing: 0.01em;
  padding: 0.7rem 1.35rem; border-radius: 100px;
  transition: background var(--t-fast), color var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast), border-color var(--t-fast);
  white-space: nowrap; min-height: 44px;
}
/* Sleeker header CTA — slightly more compact than full-size buttons */
.header-cta .btn-primary {
  font-size: var(--text-sm); padding: 0.58rem 1.2rem; min-height: 40px;
}
.btn-primary {
  background: linear-gradient(180deg, #F4F2EE, #CFCFCF);
  color: #0A0A0A; font-weight: 600;
  box-shadow: 0 0 0 1px rgba(237,234,228,0.2), 0 10px 30px -12px rgba(237,234,228,0.5);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 0 0 1px rgba(237,234,228,0.4), 0 14px 38px -12px rgba(237,234,228,0.65); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  border: 1px solid var(--line-strong); color: var(--ivory); background: rgba(244,241,234,0.02);
}
.btn-ghost:hover { border-color: var(--amber); color: var(--amber); transform: translateY(-1px); }
.btn-text {
  color: var(--amber); font-family: var(--font-mono); font-size: var(--text-xs);
  letter-spacing: 0.18em; text-transform: uppercase; display: inline-flex; gap: 0.5rem; align-items: center;
  transition: gap var(--t-fast), color var(--t-fast);
}
.btn-text:hover { gap: 0.85rem; color: var(--gold); }
.btn-text .arr { transition: transform var(--t-fast); }
.btn-text:hover .arr { transform: translateX(3px); }

.hamburger {
  display: none; width: 44px; height: 44px; align-items: center; justify-content: center;
  border: 1px solid var(--line-strong); border-radius: 10px;
}
.hamburger span { display: block; width: 20px; height: 1.5px; background: var(--ivory); position: relative; transition: transform var(--t-fast), opacity var(--t-fast); }
.hamburger span::before, .hamburger span::after {
  content: ""; position: absolute; left: 0; width: 20px; height: 1.5px; background: var(--ivory);
  transition: transform var(--t-fast);
}
.hamburger span::before { top: -6px; }
.hamburger span::after { top: 6px; }

/* ---------- Mobile menu ---------- */
#mobile-menu {
  position: fixed; inset: 0; z-index: 500;
  background: var(--bg-0);
  display: flex; flex-direction: column;
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity var(--t-med), visibility var(--t-med), transform var(--t-med);
}
#mobile-menu.open { opacity: 1; visibility: visible; transform: translateY(0); }
.mm-top { display: flex; align-items: center; justify-content: space-between; padding: 1.1rem var(--gutter); border-bottom: 1px solid var(--line); }
.mm-close { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 10px; color: var(--ivory); font-size: 1.4rem; }
.mm-links { flex: 1; display: flex; flex-direction: column; justify-content: center; gap: 0.4rem; padding: 0 var(--gutter); }
.mm-links a {
  font-family: var(--font-display); font-size: clamp(1.8rem, 8vw, 2.6rem); color: var(--ivory);
  padding-block: 0.4rem; border-bottom: 1px solid var(--line);
  transition: color var(--t-fast), padding-left var(--t-fast);
}
.mm-links a:hover { color: var(--amber); padding-left: 0.5rem; }
.mm-bottom { padding: 1.25rem var(--gutter) calc(1.25rem + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); }
.mm-bottom .btn { width: 100%; justify-content: center; }

/* ---------- Sound toggle ---------- */
#sound-toggle {
  position: fixed; bottom: 1.5rem; left: 1.5rem; z-index: 300;
  display: inline-flex; align-items: center; gap: 0.55rem;
  padding: 0.55rem 0.9rem; border-radius: 100px;
  border: 1px solid var(--line-strong); background: rgba(18,18,17,0.6);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--mist); transition: color var(--t-fast), border-color var(--t-fast);
  min-height: 44px;
}
#sound-toggle:hover { color: var(--ivory); border-color: var(--line-strong); }
.sound-dots { display: inline-flex; align-items: flex-end; gap: 2px; height: 12px; }
.sound-dots i { width: 2px; background: var(--mist); height: 4px; border-radius: 2px; transition: height var(--t-fast), background var(--t-fast); }
#sound-toggle[aria-pressed="true"] { color: var(--amber); border-color: rgba(237,234,228,0.4); }
#sound-toggle[aria-pressed="true"] .sound-dots i { background: var(--amber); animation: eq 900ms var(--ease-in-out) infinite; }
#sound-toggle[aria-pressed="true"] .sound-dots i:nth-child(2) { animation-delay: 150ms; }
#sound-toggle[aria-pressed="true"] .sound-dots i:nth-child(3) { animation-delay: 300ms; }
@keyframes eq { 0%,100% { height: 4px; } 50% { height: 12px; } }

/* ---------- Scroll progress + chapter dots ---------- */
#scroll-progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0%;
  background: linear-gradient(90deg, var(--copper), var(--amber), var(--gold));
  z-index: 250; transition: width 80ms linear;
}
#chapter-dots {
  position: fixed; right: 1.6rem; top: 50%; transform: translateY(-50%); z-index: 200;
  display: flex; flex-direction: column; gap: 0.85rem; align-items: center;
}
#chapter-dots button {
  width: 10px; height: 10px; border-radius: 50%; border: 1px solid var(--line-strong);
  display: grid; place-items: center; transition: border-color var(--t-fast);
  position: relative;
}
#chapter-dots button::after {
  content: ""; width: 4px; height: 4px; border-radius: 50%; background: var(--stone);
  transition: background var(--t-fast), transform var(--t-fast);
}
#chapter-dots button:hover::after { background: var(--mist); }
#chapter-dots button.active { border-color: var(--amber); }
#chapter-dots button.active::after { background: var(--amber); transform: scale(1.4); }
#chapter-dots button .dot-tip {
  position: absolute; right: 20px; top: 50%; transform: translateY(-50%);
  font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--mist); white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity var(--t-fast);
}
#chapter-dots button:hover .dot-tip { opacity: 1; }

/* ---------- Hero / 3D canvas ---------- */
.core-stage {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  /* Promote to its own compositor layer so it never triggers page repaints
     while scrolling — it stays put and only its own RAF redraws it. */
  will-change: transform;
  transform: translateZ(0);
  contain: strict;
}
#core-canvas { width: 100%; height: 100%; }
.core-fallback {
  position: absolute; inset: 0;
  background:
    radial-gradient(closest-side at 50% 48%, rgba(237,234,228,0.22), rgba(237,234,228,0.05) 40%, transparent 66%),
    radial-gradient(closest-side at 50% 48%, rgba(237,234,228,0.14), transparent 60%);
  display: none;
}
.core-fallback.show { display: block; }
.core-fallback canvas { width: 100%; height: 100%; }

/* ---------- Hero ---------- */
.hero {
  position: relative; z-index: 2;
  min-height: 100svh; display: flex; flex-direction: column; justify-content: center;
  padding-top: var(--header-h);
  /* reserve room at the bottom so centred content never collides with the pinned scroll cue */
  padding-bottom: 5.5rem;
}
.hero { isolation: isolate; overflow-x: clip; }
.hero::before {
  content: ""; position: absolute; inset: 0 30% 0 -6%; z-index: -1;
  background: linear-gradient(90deg, rgba(10,10,11,0.94) 0%, rgba(10,10,11,0.82) 45%, rgba(10,10,11,0.0) 100%);
  pointer-events: none;
}
.hero .eyebrow { margin-bottom: 1.4rem; }
.hero h1 {
  font-size: var(--text-hero); margin-bottom: 1.5rem;
}
.hero h1 .l2 { color: var(--amber); }
.hero .sec-head {
  font-family: var(--font-display); font-size: var(--text-2xl); color: var(--ivory);
  font-weight: 420; margin-bottom: 1.5rem; max-width: 18ch; letter-spacing: -0.01em;
}
.hero .sub { font-size: var(--text-lg); color: var(--mist); max-width: 46ch; margin-bottom: 1.75rem; }
.hero .hero-body { color: var(--mist); max-width: 56ch; margin-bottom: 2.25rem; font-size: var(--text-base); }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.scroll-prompt {
  position: absolute; bottom: 1.75rem; left: var(--gutter); display: flex; align-items: center; gap: 0.75rem;
  font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.16em; text-transform: uppercase; color: var(--stone);
}
/* hide the cue when the viewport is too short to fit it below the CTAs cleanly */
@media (max-height: 760px) {
  .scroll-prompt { display: none; }
}
.scroll-prompt .line { width: 38px; height: 1px; background: var(--stone); position: relative; overflow: hidden; }
.scroll-prompt .line::after { content: ""; position: absolute; inset: 0; width: 14px; background: var(--amber); animation: scroll-line 2.4s var(--ease-in-out) infinite; }
@keyframes scroll-line { 0% { transform: translateX(-14px); } 100% { transform: translateX(38px); } }

/* ---------- Chapters ---------- */
.chapter {
  position: relative; z-index: 2;
  min-height: 100svh; display: flex; align-items: center;
  padding-block: var(--sp-7);
  overflow-x: clip;
}
.chapter-inner { max-width: 760px; position: relative; }
.chapter-inner::before {
  content: ""; position: absolute; inset: -3rem -4rem; z-index: -1;
  background: radial-gradient(120% 100% at 18% 40%, rgba(10,10,11,0.92) 0%, rgba(10,10,11,0.78) 38%, rgba(10,10,11,0.0) 78%);
  pointer-events: none;
}
.chapter.right .chapter-inner { margin-left: auto; }
.chapter.right .chapter-inner::before { background: radial-gradient(120% 100% at 82% 40%, rgba(10,10,11,0.92) 0%, rgba(10,10,11,0.78) 38%, rgba(10,10,11,0.0) 78%); }
.chapter-label { display: inline-flex; align-items: center; gap: 0.7rem; margin-bottom: 1.5rem; color: var(--amber); }
.chapter-label::before { content: ""; width: 28px; height: 1px; background: var(--copper); }
.chapter h2 { font-size: var(--text-3xl); margin-bottom: 1.5rem; }
.chapter h2 .br { display: block; }
.chapter .ch-body { color: var(--mist); font-size: var(--text-base); max-width: 60ch; margin-bottom: 1.75rem; }
.emphasis {
  font-family: var(--font-display); font-size: var(--text-xl); color: var(--ivory);
  border-left: 2px solid var(--amber); padding-left: 1.25rem; margin: 0 0 1.75rem; line-height: 1.4; max-width: 50ch;
  font-style: italic; font-weight: 420;
}

/* Reveal */
/* Reveals: a smooth, softly-eased rise + fade. The cubic curve below is a
   gentle "slow settle" — quick to start, long graceful landing — so content
   arrives calmly as its section enters view. Stagger is applied per-element
   in JS (--reveal-delay) so each block animates in sequence, not all at once. */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 1100ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 1100ms cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--reveal-delay, 0s);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: none; }
.reveal.in { will-change: auto; }
/* Legacy fixed-delay classes still supported, but JS sequencing takes over
   when present (it sets --reveal-delay based on order within the section). */
.reveal.d1 { --reveal-delay: 0.10s; }
.reveal.d2 { --reveal-delay: 0.20s; }
.reveal.d3 { --reveal-delay: 0.30s; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- XXIST Way cards ---------- */
.cards-grid { display: grid; gap: 1.1rem; margin-top: 2.5rem; }
.way-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.sys-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.card {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(26,26,28,0.5), rgba(18,18,17,0.4));
  padding: 1.6rem 1.5rem; position: relative; overflow: hidden;
  transition: border-color var(--t-fast), transform var(--t-fast), background var(--t-fast);
}
.card::before {
  content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity var(--t-med);
  background: radial-gradient(closest-side at 80% 0%, rgba(237,234,228,0.1), transparent 70%);
}
.card:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.card:hover::before { opacity: 1; }
.card .x-mark { font-family: var(--font-mono); color: var(--amber); font-size: var(--text-xs); letter-spacing: 0.2em; margin-bottom: 0.85rem; display: block; }
.card h3 { font-size: var(--text-lg); margin-bottom: 0.7rem; color: var(--ivory); font-family: var(--font-display); }
.card p { color: var(--mist); font-size: 0.95rem; line-height: 1.6; margin-bottom: 1rem; }
.card .btn-text { margin-top: auto; }

/* Way step linkage */
.way-card { display: flex; flex-direction: column; }
.way-card .step-no { position: absolute; top: 1.1rem; right: 1.2rem; font-family: var(--font-mono); font-size: var(--text-xs); color: var(--stone); letter-spacing: 0.12em; }

/* ---------- Evolution sequence ---------- */
.evolution { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem; margin-top: 2.5rem; }
.evo-step {
  display: inline-flex; align-items: center; gap: 0.65rem;
  border: 1px solid var(--line); border-radius: 100px; padding: 0.6rem 1.1rem;
  font-size: var(--text-sm); color: var(--mist); background: rgba(26,26,28,0.4);
  transition: border-color var(--t-med), color var(--t-med), background var(--t-med);
}
.evo-step .pip { width: 7px; height: 7px; border-radius: 50%; background: var(--stone); transition: background var(--t-med), box-shadow var(--t-med); }
.evo-step.lit { color: var(--ivory); border-color: rgba(237,234,228,0.35); }
.evo-step.lit .pip { background: var(--amber); box-shadow: 0 0 12px rgba(237,234,228,0.7); }
.evo-arrow { color: var(--stone); }
.evo-step.terminal { background: linear-gradient(180deg, rgba(237,234,228,0.12), rgba(126,126,126,0.06)); }

/* ---------- Approval flow ---------- */
.flow { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 0.75rem; margin-top: 2.5rem; counter-reset: flow; }
.flow-step {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.2rem;
  background: rgba(26,26,28,0.4); position: relative;
  transition: border-color var(--t-med), background var(--t-med);
}
.flow-step .fno { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--amber); letter-spacing: 0.18em; margin-bottom: 0.5rem; display: block; }
.flow-step p { font-size: 0.95rem; color: var(--ivory); }
.flow-step.lit { border-color: rgba(237,234,228,0.4); background: rgba(237,234,228,0.05); }

/* ---------- Principle tiles ---------- */
.principles { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px,1fr)); gap: 1rem; margin-top: 2.5rem; }
.principle {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem;
  background: rgba(18,18,17,0.4); display: flex; gap: 1rem; align-items: flex-start;
  transition: border-color var(--t-fast), transform var(--t-fast);
}
.principle:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.principle .glow {
  flex: none; width: 12px; height: 12px; border-radius: 50%; margin-top: 0.45rem;
  background: var(--amber); box-shadow: 0 0 14px rgba(237,234,228,0.8); position: relative;
}
.principle .glow::after { content: ""; position: absolute; inset: -5px; border-radius: 50%; border: 1px solid rgba(237,234,228,0.3); }
.principle .pnum { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--stone); margin-bottom: 0.3rem; display: block; letter-spacing: 0.14em; }
.principle p { color: var(--ivory); font-size: 1rem; line-height: 1.45; }

/* ---------- Subpage atmospheric glow ---------- */
.page-glow {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(60% 50% at 78% 12%, rgba(237,234,228,0.10), transparent 60%),
    radial-gradient(50% 45% at 12% 88%, rgba(237,234,228,0.07), transparent 60%);
}

/* ---------- Generic page sections ---------- */
.page-hero { padding-top: calc(var(--header-h) + var(--sp-7)); padding-bottom: var(--sp-6); position: relative; z-index: 2; }
.page-hero .eyebrow { margin-bottom: 1.3rem; color: var(--amber); }
.page-hero h1 { font-size: var(--text-3xl); margin-bottom: 1.5rem; max-width: 18ch; }
.page-hero .sub { font-size: var(--text-lg); color: var(--mist); max-width: 50ch; }

.prose-section { padding-block: var(--sp-6); border-top: 1px solid var(--line); position: relative; z-index: 2; }
.prose-section:first-of-type { border-top: none; }
.prose-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 3rem; align-items: start; }
@media (max-width: 860px) { .prose-grid { grid-template-columns: 1fr; gap: 1.25rem; } }
.prose-grid h2 { font-size: var(--text-2xl); max-width: 16ch; }
.prose-grid .num { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--amber); letter-spacing: 0.2em; display: block; margin-bottom: 1rem; }
.prose-grid p { color: var(--mist); font-size: var(--text-base); }
.prose-grid p + p { margin-top: 1rem; }

/* paired contrast lines */
.contrast-lines { display: grid; gap: 0.5rem; margin-top: 0.5rem; }
.contrast-lines .pair { display: grid; grid-template-columns: 1fr auto 1fr; gap: 1rem; align-items: center; padding-block: 0.75rem; border-bottom: 1px solid var(--line); }
.contrast-lines .pair .ai { color: var(--mist); text-align: right; font-size: var(--text-base); }
.contrast-lines .pair .hu { color: var(--ivory); font-family: var(--font-display); font-size: var(--text-lg); }
.contrast-lines .pair .sep { color: var(--amber); font-family: var(--font-mono); font-size: var(--text-xs); }
@media (max-width: 600px) { .contrast-lines .pair { grid-template-columns: 1fr; text-align: left; } .contrast-lines .pair .ai { text-align: left; } .contrast-lines .pair .sep { display: none; } }

/* Stage sections (XXIST Way page) */
.stage { padding-block: var(--sp-6); border-top: 1px solid var(--line); position: relative; z-index: 2; }
.stage-head { display: flex; align-items: baseline; gap: 1.25rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.stage-head .sno { font-family: var(--font-mono); color: var(--amber); font-size: var(--text-lg); letter-spacing: 0.1em; }
.stage-head .sname { font-family: var(--font-display); font-size: var(--text-xl); color: var(--mist); letter-spacing: 0.02em; }
.stage h2 { font-size: var(--text-2xl); margin-bottom: 1.25rem; max-width: 20ch; }
.stage-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 3rem; }
@media (max-width: 860px) { .stage-grid { grid-template-columns: 1fr; gap: 1.75rem; } }
.stage-grid p { color: var(--mist); }
.outputs { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; background: rgba(26,26,28,0.4); }
.outputs h3 { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.2em; text-transform: uppercase; color: var(--amber); margin-bottom: 1rem; }
.outputs li { color: var(--ivory); font-size: 0.95rem; padding: 0.55rem 0; border-bottom: 1px solid var(--line); display: flex; gap: 0.6rem; }
.outputs li:last-child { border-bottom: none; }
.outputs li::before { content: "—"; color: var(--copper); }

/* Discover/build lists */
.two-lists { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; margin-top: 2.5rem; }
@media (max-width: 780px) { .two-lists { grid-template-columns: 1fr; gap: 1.75rem; } }
.list-block h3 { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.18em; text-transform: uppercase; color: var(--amber); margin-bottom: 1.1rem; }
.list-block li { color: var(--ivory); padding: 0.7rem 0; border-bottom: 1px solid var(--line); display: flex; gap: 0.7rem; font-size: 0.98rem; }
.list-block li::before { content: ""; flex: none; width: 6px; height: 6px; border-radius: 50%; background: var(--copper); margin-top: 0.6rem; }

/* ---------- Contact form ---------- */
.contact-wrap { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 3.5rem; align-items: start; }
@media (max-width: 900px) { .contact-wrap { grid-template-columns: 1fr; gap: 2rem; } }
.form-card {
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(26,26,28,0.6), rgba(18,18,17,0.5));
  padding: 2.25rem; position: relative; overflow: hidden;
}
.field { margin-bottom: 1.25rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
@media (max-width: 560px) { .field-row { grid-template-columns: 1fr; gap: 0; } }
.field label { display: block; font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.12em; text-transform: uppercase; color: var(--mist); margin-bottom: 0.5rem; }
.field input, .field select, .field textarea {
  width: 100%; background: rgba(10,10,11,0.6); border: 1px solid var(--line-strong);
  border-radius: 10px; color: var(--ivory); padding: 0.85rem 1rem; font-family: var(--font-body); font-size: 1rem;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.field textarea { min-height: 130px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: var(--stone); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--amber); box-shadow: 0 0 0 3px rgba(237,234,228,0.15); }
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%239B9890' stroke-width='1.5'%3E%3Cpath d='M3 5l4 4 4-4'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1rem center; padding-right: 2.5rem; }
.form-micro { font-size: var(--text-sm); color: var(--stone); margin-top: 1rem; }
.btn-submit { width: 100%; justify-content: center; margin-top: 0.5rem; }
.form-confirm {
  display: none; text-align: center; padding: 1rem 0;
}
.form-confirm.show { display: block; }
.form-confirm .check { width: 56px; height: 56px; margin: 0 auto 1.5rem; border-radius: 50%; border: 1px solid var(--amber); display: grid; place-items: center; color: var(--amber); box-shadow: 0 0 30px -8px rgba(237,234,228,0.6); }
.form-confirm h3 { font-family: var(--font-display); font-size: var(--text-xl); color: var(--ivory); margin-bottom: 0.75rem; }
.form-confirm p { color: var(--mist); }

/* ---------- Final brand line ---------- */
.final-brand {
  text-align: center; padding-block: var(--sp-7); position: relative; z-index: 2;
}
.final-brand p { font-family: var(--font-display); font-size: var(--text-3xl); color: var(--ivory); letter-spacing: -0.02em; }
.final-brand p .amber { color: var(--amber); }

/* ---------- Footer ---------- */
.site-footer { position: relative; z-index: 2; border-top: 1px solid var(--line); background: var(--bg-0); padding-block: var(--sp-6) var(--sp-4); }
.footer-top { display: grid; grid-template-columns: 1.4fr repeat(5, 1fr); gap: 2.5rem; }
@media (max-width: 1000px) { .footer-top { grid-template-columns: 1fr 1fr 1fr; } }
@media (max-width: 600px) { .footer-top { grid-template-columns: 1fr 1fr; gap: 2rem; } }
.footer-brand .brand { margin-bottom: 1rem; }
.footer-brand p { color: var(--mist); font-size: var(--text-sm); max-width: 28ch; }
.footer-col h4 { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.16em; text-transform: uppercase; color: var(--stone); margin-bottom: 1rem; }
.footer-col a, .footer-col span { display: block; color: var(--mist); font-size: var(--text-sm); padding: 0.35rem 0; transition: color var(--t-fast); }
.footer-col a:hover { color: var(--ivory); }
.responsible-ai { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-top: var(--sp-5); padding-block: var(--sp-4); }
.responsible-ai h4 { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.16em; text-transform: uppercase; color: var(--amber); margin-bottom: 0.85rem; }
.responsible-ai p { color: var(--mist); max-width: 70ch; font-size: 0.98rem; }
.footer-bottom { margin-top: var(--sp-4); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; align-items: center; }
.footer-bottom .brandline { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.08em; color: var(--stone); }
.footer-legal { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-legal a { color: var(--stone); font-size: var(--text-xs); transition: color var(--t-fast); }
.footer-legal a:hover { color: var(--mist); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .nav-links { display: none; }
  .header-cta .btn-primary { display: none; }
  .hamburger { display: inline-flex; }
  #chapter-dots { display: none; }
}
@media (max-width: 720px) {
  .prose-grid h2 { font-size: var(--text-xl); }
  .stage-grid { gap: 1.5rem; }
  #sound-toggle { bottom: 1rem; left: 1rem; }
  .chapter, .hero { min-height: auto; padding-block: var(--sp-7); }
  .hero { min-height: 100svh; }
}

/* ---------- Modal (legal) ---------- */
.legal-modal { border: none; padding: 0; background: transparent; max-width: 640px; width: 92vw; color: var(--ivory); }
.legal-modal::backdrop { background: rgba(5,5,6,0.7); backdrop-filter: blur(4px); }
.legal-modal .lm-inner { background: var(--bg-2); border: 1px solid var(--line-strong); border-radius: var(--radius-lg); padding: 2.25rem; }
.legal-modal h3 { font-family: var(--font-display); font-size: var(--text-xl); margin-bottom: 1rem; }
.legal-modal p { color: var(--mist); margin-bottom: 1rem; }
.legal-modal .lm-close { position: absolute; top: 1rem; right: 1rem; }