/* ============================================================
   THE ARCHITECTURE OF BELIEF — design tokens
   Dark, geological, luminous. Palette lifted from the source map.
   ============================================================ */
:root {
  --bg-deep: #0d0d18;
  --bg-mid: #14142a;
  --bg-surface: #1a1a2e;

  --ink: #e6e4f0;
  --ink-dim: #9b97b8;
  --ink-faint: #5d5a78;

  --purple: #7f77dd;
  --purple-bright: #b0a8f0;
  --coral: #e24b4a;
  --amber: #daa520;
  --teal: #00b4a0;
  --green: #50b450;
  --blue: #4682dc;
  --gold-soft: #f5e9c9;

  --font-display: "Cormorant Garamond", Georgia, serif;
  --font-body: "Space Grotesk", system-ui, -apple-system, sans-serif;

  --text-base: clamp(1rem, 0.94rem + 0.3vw, 1.125rem);
  --text-lede: clamp(1.3rem, 1.1rem + 0.9vw, 1.8rem);
  --text-h2: clamp(2.4rem, 1.6rem + 3.6vw, 4.4rem);
  --text-hero: clamp(3rem, 1.2rem + 8.5vw, 9rem);

  --space-section: clamp(6rem, 4rem + 10vw, 14rem);

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-reveal: 1100ms;

  --glass-bg: rgba(20, 20, 42, 0.55);
  --glass-border: rgba(176, 168, 240, 0.14);
}

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

/* programmatic smoothing handled by Lenis (main.js) */
html { scroll-behavior: auto; }

body {
  background: var(--bg-deep);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  overflow-x: hidden;
}

/* No-WebGL / reduced-motion fallback backdrop */
body.no-webgl {
  background:
    radial-gradient(120% 80% at 50% 0%, #232347 0%, transparent 60%),
    radial-gradient(120% 80% at 50% 100%, #2a2417 0%, transparent 55%),
    var(--bg-deep);
}

/* ---------- fixed WebGL canvas ---------- */
#scene {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  display: block;
}
body.no-webgl #scene { display: none; }

/* film grain — texture/atmosphere, pure CSS, compositor-friendly */
.grain {
  position: fixed;
  inset: -50%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='128' height='128'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='128' height='128' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
  animation: grain-shift 1.2s steps(4) infinite;
}
@keyframes grain-shift {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-2%, 3%); }
  50% { transform: translate(3%, -2%); }
  75% { transform: translate(-3%, -3%); }
  100% { transform: translate(2%, 2%); }
}

/* ---------- depth gauge ---------- */
.gauge {
  position: fixed;
  right: clamp(0.8rem, 2.5vw, 2.4rem);
  top: 50%;
  transform: translateY(-50%);
  z-index: 20;
  display: flex;
  gap: 0.9rem;
  align-items: stretch;
}
.gauge-track {
  width: 2px;
  border-radius: 2px;
  background: rgba(176, 168, 240, 0.12);
  overflow: hidden;
  position: relative;
}
.gauge-fill {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 100%;
  background: linear-gradient(var(--purple-bright), var(--gold-soft));
  transform-origin: top;
  transform: scaleY(0);
}
.gauge ul { list-style: none; display: flex; flex-direction: column; gap: 1.1rem; }
.gauge a {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-faint);
  transition: color 400ms var(--ease-out-expo);
}
.gauge .tick {
  width: 14px;
  height: 1px;
  background: currentColor;
  transition: width 400ms var(--ease-out-expo);
}
.gauge a:hover, .gauge a:focus-visible { color: var(--ink-dim); }
.gauge a.active { color: var(--purple-bright); }
.gauge a.active .tick { width: 26px; }
@media (max-width: 760px) { .gauge ul { display: none; } .gauge { right: 0.6rem; } }

/* ---------- hero ---------- */
.section {
  position: relative;
  z-index: 10;
  min-height: 165vh;
  display: flex;
  align-items: center;
  padding: var(--space-section) clamp(1.2rem, 6vw, 7rem);
}
.hero {
  min-height: 100vh;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 1.4rem;
}
.hero-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--purple-bright);
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--text-hero);
  line-height: 0.98;
  letter-spacing: -0.015em;
  display: flex;
  flex-direction: column;
}
.hero h1 .hero-of {
  font-style: italic;
  font-size: 0.42em;
  color: var(--ink-dim);
  padding-left: 0.3em;
  line-height: 1.4;
}
.hero-meta {
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.hero-sub {
  max-width: 34em;
  color: var(--ink-dim);
  font-size: var(--text-lede);
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.5;
}
.hero-cta {
  margin-top: 2.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--ink-faint);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.scroll-hint {
  width: 22px;
  height: 38px;
  border: 1px solid var(--ink-faint);
  border-radius: 12px;
  display: inline-flex;
  justify-content: center;
  padding-top: 7px;
}
.scroll-dot {
  width: 3px;
  height: 7px;
  border-radius: 2px;
  background: var(--purple-bright);
  animation: scroll-drop 2.2s var(--ease-out-expo) infinite;
}
@keyframes scroll-drop {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(14px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

.section-ground { min-height: 220vh; align-items: flex-end; padding-bottom: 30vh; }

.kicker {
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent, var(--purple-bright));
  margin-bottom: 1rem;
}
.lede {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: var(--text-lede);
  color: var(--ink-dim);
  margin-bottom: 1.2rem;
  line-height: 1.4;
}
.ink-blue { color: #80b0f0; }
.ink-green { color: #80d880; }

/* ---------- reveals ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity var(--duration-reveal) var(--ease-out-expo),
    transform var(--duration-reveal) var(--ease-out-expo);
}
.reveal.in { opacity: 1; transform: translateY(0); }
.hero .reveal:nth-child(2) { transition-delay: 120ms; }
.hero .reveal:nth-child(3) { transition-delay: 240ms; }
.hero .reveal:nth-child(4) { transition-delay: 360ms; }
.hero .reveal:nth-child(5) { transition-delay: 480ms; }

/* ---------- floating passages: text materializing out of space ---------- */
.section { perspective: 1200px; }
.passage {
  position: relative;
  max-width: 36rem;
  transform-style: preserve-3d;
  text-shadow: 0 2px 18px rgba(5, 5, 12, 0.85), 0 0 60px rgba(5, 5, 12, 0.6);
}
.passage h2, .passage p { transform-style: preserve-3d; }
.passage-right { margin-left: auto; }
.passage-center { margin-inline: auto; text-align: center; }
/* whisper of a scrim so text survives bright geometry — not a card */
.passage::before {
  content: "";
  position: absolute;
  inset: -18% -22%;
  z-index: -1;
  background: radial-gradient(60% 55% at 50% 50%, rgba(6, 6, 14, 0.66), transparent 74%);
  pointer-events: none;
}
.passage h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-h2);
  line-height: 1.02;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}
.passage .lede {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: var(--text-lede);
  color: #cfcae0;
  margin-bottom: 1.2rem;
  line-height: 1.35;
}
.passage p + p { margin-top: 1rem; }
.passage .kicker {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 800ms var(--ease-out-expo), transform 800ms var(--ease-out-expo);
}
.passage.in .kicker { opacity: 1; transform: none; }
.passage .hint {
  margin-top: 1.6rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.passage .hint::before {
  content: "";
  display: block;
  width: 52px;
  height: 1px;
  margin-bottom: 1rem;
  background: linear-gradient(90deg, var(--accent, #b0a8f0), transparent);
}
.passage-center .hint::before { margin-inline: auto; }

/* the letters/words themselves — pulled in from scattered 3D space */
.passage .wd {
  display: inline-block;
  white-space: nowrap;
  transform-style: preserve-3d;
}
.passage .l, .passage .w {
  display: inline-block;
  opacity: 0;
  transform: translate3d(var(--dx, 0px), var(--dy, 0px), var(--dz, -160px)) rotateY(var(--ry, 0deg));
  filter: blur(7px);
  transition:
    opacity 900ms var(--ease-out-expo),
    transform 1300ms var(--ease-out-expo),
    filter 900ms ease-out;
  transition-delay: var(--d, 0ms);
}
.passage.in .l, .passage.in .w {
  opacity: 1;
  transform: none;
  filter: none;
}

/* ---------- 3D node tooltip ---------- */
.tooltip {
  position: fixed;
  z-index: 30;
  pointer-events: none;
  padding: 0.45rem 0.85rem;
  border-radius: 8px;
  background: rgba(13, 13, 24, 0.85);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(8px);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  opacity: 0;
  transform: translate(-50%, calc(-100% - 14px)) scale(0.96);
  transition: opacity 200ms ease, transform 200ms var(--ease-out-expo);
  white-space: nowrap;
}
.tooltip.show { opacity: 1; transform: translate(-50%, calc(-100% - 18px)) scale(1); }

/* ---------- detail panel ---------- */
.panel {
  position: fixed;
  z-index: 40;
  top: 50%;
  right: clamp(1rem, 4vw, 4rem);
  transform: translateY(-50%) translateX(30px);
  width: min(25rem, calc(100vw - 2rem));
  max-height: 76vh;
  overflow-y: auto;
  padding: 2rem 2.2rem;
  background: rgba(16, 16, 32, 0.82);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  backdrop-filter: blur(24px) saturate(1.3);
  -webkit-backdrop-filter: blur(24px) saturate(1.3);
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 450ms var(--ease-out-expo),
    transform 450ms var(--ease-out-expo),
    visibility 0s 450ms;
}
.panel.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(0);
  transition:
    opacity 450ms var(--ease-out-expo),
    transform 450ms var(--ease-out-expo);
}
.panel-kicker {
  font-size: 0.66rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--panel-accent, var(--purple-bright));
  margin-bottom: 0.5rem;
}
.panel h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.55rem;
  line-height: 1.15;
  margin-bottom: 1rem;
}
.panel p { color: var(--ink-dim); font-size: 0.92rem; }
.panel p + p { margin-top: 0.8rem; }
.panel-close {
  position: absolute;
  top: 0.9rem;
  right: 1rem;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: rgba(176, 168, 240, 0.1);
  color: var(--ink-dim);
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
  transition: background 250ms ease, color 250ms ease;
}
.panel-close:hover, .panel-close:focus-visible { background: rgba(176, 168, 240, 0.22); color: var(--ink); }

/* ---------- outro ---------- */
.outro { min-height: 110vh; }
.outro h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.5rem, 1rem + 2.4vw, 2.6rem);
  line-height: 1.25;
  margin-bottom: 1.2rem;
}
.outro-links {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
}
.outro-links a {
  padding: 0.7rem 1.4rem;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  color: var(--purple-bright);
  text-decoration: none;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: border-color 300ms ease, background 300ms ease, transform 300ms var(--ease-out-expo);
}
.outro-links a:hover, .outro-links a:focus-visible {
  border-color: var(--purple);
  background: rgba(127, 119, 221, 0.12);
  transform: translateY(-2px);
}
.outro-contact {
  margin-top: 2.2rem;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.outro-contact a {
  color: var(--purple-bright);
  text-decoration: none;
  text-transform: none;
  letter-spacing: 0.04em;
  border-bottom: 1px solid rgba(176, 168, 240, 0.3);
  transition: border-color 300ms ease, color 300ms ease;
}
.outro-contact a:hover, .outro-contact a:focus-visible {
  color: var(--ink);
  border-color: var(--purple-bright);
}

.noscript-note {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  padding: 0.8rem 1.4rem;
  background: var(--bg-surface);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  font-size: 0.85rem;
}

body.node-hover { cursor: pointer; }

/* ---------- mobile pass ---------- */
@media (max-width: 768px) {
  .section {
    min-height: 135vh;
    padding: clamp(3.5rem, 10vw, 6rem) 1.25rem;
  }
  .section-ground { min-height: 180vh; padding-bottom: 22vh; }
  .hero { padding-top: 18vh; }
  .hero-sub { font-size: 1.2rem; }
  .passage { max-width: 100%; }
  .passage::before { inset: -10% -8%; }
  .tooltip { display: none; }
  .panel {
    top: auto;
    bottom: 1rem;
    right: 50%;
    max-height: 62vh;
    width: calc(100vw - 2rem);
    transform: translateX(50%) translateY(24px);
  }
  .panel.open { transform: translateX(50%) translateY(0); }
  .outro-links a { padding: 0.6rem 1.1rem; font-size: 0.74rem; }
}
@media (max-width: 380px) {
  .section { padding-inline: 1rem; }
  .hero h1 { line-height: 1.04; }
  .hero-meta { letter-spacing: 0.12em; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .grain, .scroll-dot { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .passage .kicker { opacity: 1; transform: none; transition: none; }
  .passage .l, .passage .w { opacity: 1; transform: none; filter: none; transition: none; }
  .panel, .tooltip { transition: none; }
}