/* ============================================================
   CYSTEMS — Concept 5 · OBSIDIAN
   Dark cinematic nocturne. Monochrome-dark + molten gold.
   Token contract: every visual value below routes through a
   custom property. The deliverable obeys the spec, not the reverse.
   ============================================================ */

/* ---------- TOKENS ---------- */
:root {
  /* grounds (near-black obsidian) — widened value steps for cinematic chapter rhythm */
  --obsidian:    #0B0B0C;   /* page ground */
  --obsidian-2:  #141418;   /* panel (lifted for clearer alternation) */
  --obsidian-3:  #1B1B20;   /* raised card */
  --obsidian-4:  #242429;   /* hairline-lit surface */
  --deep:        #060607;   /* deepest ground */

  /* text */
  --paper:       #F5F5F4;   /* off-white primary text */
  --text-soft:   #A6A6AC;   /* secondary */
  --text-mute:   #6B6B72;   /* tertiary / captions */
  --text-faint:  #47474D;   /* disabled / deep mute */

  /* accent — molten gold out of the dark */
  --gold:        #C08A34;
  --gold-lit:    #F0B44A;
  --gold-pale:   #FBE0A6;
  --ember:       #FF7A18;
  --on-gold:     #14100A;   /* warm ink for text/icons sitting on a gold fill */

  /* lines */
  --line:        rgba(245,245,244,.10);
  --line-soft:   rgba(245,245,244,.06);
  --line-gold:   rgba(240,180,74,.28);

  /* glows */
  --glow-gold:   rgba(240,180,74,.16);
  --glow-ember:  rgba(255,122,24,.14);
  --media-bg:    #0B0B0C;   /* sampled behind embedded media — matches obsidian ground, no seam */

  /* type */
  --font-sans: "Hanken Grotesk", "Instrument Sans", system-ui, -apple-system, sans-serif;
  --font-mono: "Space Mono", ui-monospace, "SFMono-Regular", monospace;

  /* type scale (fluid) */
  --fs-display: clamp(2.6rem, 1.4rem + 5.6vw, 6.4rem);
  --fs-h1:      clamp(2rem, 1.2rem + 3.4vw, 4rem);
  --fs-h2:      clamp(1.5rem, 1.1rem + 1.9vw, 2.6rem);
  --fs-h3:      clamp(1.15rem, 1rem + .7vw, 1.5rem);
  --fs-lead:    clamp(1.05rem, .98rem + .5vw, 1.35rem);
  --fs-body:    1rem;
  --fs-sm:      .875rem;
  --fs-mono:    .72rem;

  /* tracking */
  --tr-tight:  -0.02em;
  --tr-normal:  0.01em;
  --tr-wide:    0.14em;
  --tr-index:   0.24em;

  /* rhythm */
  --wrap:      1240px;
  --wrap-nar:  820px;
  --gutter:    clamp(1.25rem, 5vw, 4rem);
  --sec-y:     clamp(5rem, 3rem + 9vw, 10rem);
  --radius:    14px;
  --radius-sm: 9px;

  /* motion */
  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-expo: cubic-bezier(.16,1,.3,1);
}

/* ---------- RESET ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--paper);
  background: var(--obsidian);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }
::selection { background: var(--gold); color: var(--obsidian); }

/* ---------- LAYOUT ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.wrap--narrow { max-width: var(--wrap-nar); }
.section { position: relative; padding-block: var(--sec-y); }
.section--panel { background: var(--obsidian-2); }
.section--deep  { background: var(--deep); }
.section--raise { background: var(--obsidian-3); }

/* top hairline divider between alternating sections + a short gold tick at the gutter */
.section + .section::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0;
  height: 1px; background: var(--line);
}
.section + .section::after {
  content: ""; position: absolute; top: 0; left: var(--gutter);
  width: 46px; height: 2px; margin-top: -1px;
  background: linear-gradient(90deg, var(--gold-lit), transparent);
}

/* ---------- TYPE PRIMITIVES ---------- */
.display {
  font-size: var(--fs-display);
  line-height: .98; font-weight: 600;
  letter-spacing: var(--tr-tight);
  text-transform: uppercase;
}
.h1 { font-size: var(--fs-h1); line-height: 1.02; font-weight: 600; letter-spacing: var(--tr-tight); text-transform: uppercase; }
.h2 { font-size: var(--fs-h2); line-height: 1.06; font-weight: 600; letter-spacing: var(--tr-tight); text-transform: uppercase; }
.h3 { font-size: var(--fs-h3); line-height: 1.2; font-weight: 600; letter-spacing: var(--tr-normal); }
.lead { font-size: var(--fs-lead); line-height: 1.5; color: var(--text-soft); font-weight: 400; }
.body-soft { color: var(--text-soft); }
.mute { color: var(--text-mute); }

.label {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--tr-wide);
  text-transform: uppercase;
  color: var(--text-mute);
}
.label--gold { color: var(--gold-lit); }

.idx {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--tr-index);
  color: var(--gold-lit);
}

.gold { color: var(--gold-lit); }

/* eyebrow with lead rule */
.eyebrow {
  display: inline-flex; align-items: center; gap: .7rem;
  font-family: var(--font-mono); font-size: var(--fs-mono);
  letter-spacing: var(--tr-wide); text-transform: uppercase;
  color: var(--text-soft);
}
.eyebrow::before {
  content: ""; width: 26px; height: 1px; background: var(--gold);
}

/* section header block */
.sec-head { display: grid; gap: 1rem; max-width: 780px; margin-bottom: clamp(2.4rem, 5vw, 4rem); }
.sec-head__num { display: flex; align-items: baseline; gap: 1rem; }
.sec-head__num .idx { font-size: .78rem; }
.sec-head__num .label { color: var(--text-mute); }

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--font-mono); font-size: .72rem;
  letter-spacing: var(--tr-wide); text-transform: uppercase;
  padding: .95rem 1.5rem; border-radius: 100px;
  border: 1px solid var(--line); color: var(--paper);
  transition: transform .5s var(--ease-expo), border-color .3s, background .3s, color .3s;
  will-change: transform;
}
.btn__dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--gold-lit);
  box-shadow: 0 0 0 0 var(--glow-gold);
  animation: pulse 3s var(--ease) infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(240,180,74,.35); }
  50%     { box-shadow: 0 0 0 7px rgba(240,180,74,0); }
}
.btn--primary {
  background: linear-gradient(180deg, var(--gold-lit), var(--gold));
  color: var(--on-gold); border-color: transparent;
  box-shadow: 0 10px 40px -12px rgba(240,180,74,.5);
}
.btn--primary .btn__dot { background: var(--on-gold); animation: none; }
.btn--primary:hover { box-shadow: 0 14px 54px -10px rgba(240,180,74,.7); }
.btn--ghost:hover { border-color: var(--line-gold); color: var(--gold-lit); }
.btn--lg { padding: 1.15rem 1.9rem; font-size: .76rem; }

.textlink {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--font-mono); font-size: .72rem;
  letter-spacing: var(--tr-wide); text-transform: uppercase;
  color: var(--gold-lit); padding-bottom: 3px;
  border-bottom: 1px solid var(--line-gold);
  transition: gap .4s var(--ease), border-color .3s;
}
.textlink:hover { gap: .9rem; border-color: var(--gold-lit); }

/* ---------- NAV ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 60;
  transition: background .4s var(--ease), backdrop-filter .4s, border-color .4s;
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(11,11,12,.72);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom-color: var(--line-soft);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: inline-flex; align-items: center; gap: .55rem; font-family: var(--font-mono); font-size: .82rem; letter-spacing: var(--tr-wide); }
.brand__mark { width: 22px; height: 22px; }
.brand__os { color: var(--gold-lit); }
.nav__links { display: flex; gap: clamp(1rem, 2.4vw, 2.2rem); }
.nav__links a {
  font-family: var(--font-mono); font-size: .68rem;
  letter-spacing: var(--tr-wide); text-transform: uppercase;
  color: var(--text-soft); transition: color .3s;
}
.nav__links a:hover { color: var(--paper); }
.nav__cta { padding: .7rem 1.2rem; }
.nav__burger { display: none; width: 30px; height: 20px; position: relative; }
.nav__burger span { position: absolute; left: 0; width: 100%; height: 1.5px; background: var(--paper); transition: transform .4s var(--ease), opacity .3s; }
.nav__burger span:nth-child(1) { top: 2px; }
.nav__burger span:nth-child(2) { top: 9px; }
.nav__burger span:nth-child(3) { top: 16px; }
body.menu-open .nav__burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.menu-open .nav__burger span:nth-child(2) { opacity: 0; }
body.menu-open .nav__burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* mobile menu */
.mobile-menu {
  position: fixed; inset: 0; z-index: 55;
  background: var(--obsidian); padding: 6rem var(--gutter) 3rem;
  display: flex; flex-direction: column; gap: .3rem;
  transform: translateY(-100%); transition: transform .6s var(--ease-expo);
  pointer-events: none;
}
body.menu-open .mobile-menu { transform: translateY(0); pointer-events: auto; }
.mobile-menu a { display: flex; align-items: baseline; gap: 1rem; padding: .85rem 0; border-bottom: 1px solid var(--line-soft); font-size: 1.4rem; text-transform: uppercase; letter-spacing: var(--tr-tight); }
.mobile-menu a .idx { font-size: .7rem; min-width: 30px; }
.mobile-menu .btn { margin-top: 1.6rem; align-self: flex-start; }

/* scroll progress */
.scroll-progress { position: fixed; top: 0; left: 0; height: 2px; width: 0; z-index: 70; background: linear-gradient(90deg, var(--gold), var(--gold-lit), var(--ember)); box-shadow: 0 0 12px var(--glow-gold); }

/* sticky mobile cta */
.sticky-cta { position: fixed; left: 50%; bottom: 1.1rem; transform: translate(-50%, 140%); z-index: 58; opacity: 0; transition: transform .6s var(--ease-expo), opacity .4s; }
.sticky-cta.is-shown { transform: translate(-50%, 0); opacity: 1; }

/* ============================================================
   HERO
   ============================================================ */
.hero { position: relative; min-height: 100svh; display: flex; align-items: flex-end; overflow: hidden; background: var(--media-bg); }
.hero__media { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.hero__media video, .hero__media img {
  position: absolute; inset: 50% auto auto 50%;
  width: 100%; height: 100%; min-width: 100%; min-height: 100%;
  transform: translate(-50%, -50%) scale(1.06);
  object-fit: cover; will-change: transform;
}
/* darken + vignette so gold reads out of black and text stays legible */
.hero__scrim {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(112% 74% at 50% 40%, rgba(6,6,8,0) 0%, rgba(6,6,8,.34) 46%, rgba(6,6,8,.72) 74%, rgba(6,6,8,.95) 100%),
    linear-gradient(180deg, rgba(6,6,8,.78) 0%, rgba(6,6,8,.28) 20%, transparent 46%, rgba(6,6,8,.7) 74%, rgba(6,6,8,.97) 100%);
}
/* molten underglow bleeding up from below the fold */
.hero__glow {
  position: absolute; left: 50%; bottom: -18%; z-index: 1;
  width: 90vw; height: 46vh; transform: translateX(-50%);
  background: radial-gradient(50% 60% at 50% 50%, var(--glow-ember), transparent 70%);
  filter: blur(30px); pointer-events: none;
}
.hero__inner { position: relative; z-index: 2; width: 100%; padding-bottom: clamp(3.5rem, 8vh, 7rem); }
.hero__eyebrow { margin-bottom: 1.6rem; }
.hero__title { max-width: 15ch; }
.hero__title .line { display: block; overflow: hidden; }
.hero__title .line > span { display: block; }
.hero__sub { margin-top: 1.8rem; max-width: 46ch; }
.hero__cta { margin-top: 2.6rem; display: flex; flex-wrap: wrap; gap: .9rem; align-items: center; }

/* hero chrome: section index (top-left), scroll cue (bottom-center), tag (bottom-right) */
.hero__chrome { position: absolute; inset: 0; z-index: 2; pointer-events: none; }
.hero__index { position: absolute; top: calc(70px + 1.4rem); left: var(--gutter); }
.hero__index .idx { font-size: .74rem; }
.hero__tag { position: absolute; right: var(--gutter); bottom: 1.5rem; }
.scroll-cue { position: absolute; left: 50%; bottom: 1.4rem; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: .55rem; }
.scroll-cue__mouse { width: 22px; height: 34px; border: 1px solid var(--line); border-radius: 12px; position: relative; }
.scroll-cue__mouse::after { content: ""; position: absolute; left: 50%; top: 7px; width: 3px; height: 6px; border-radius: 2px; background: var(--gold-lit); transform: translateX(-50%); animation: wheel 1.8s var(--ease) infinite; }
@keyframes wheel { 0% { opacity: 0; transform: translate(-50%, 0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translate(-50%, 10px); } }

/* ============================================================
   MARQUEE / PROOF STRIP
   ============================================================ */
.strip { border-block: 1px solid var(--line-soft); background: var(--deep); overflow: hidden; }
.strip__row { display: flex; gap: 3.5rem; padding-block: 1.15rem; white-space: nowrap; animation: marquee 34s linear infinite; }
.strip__row span { font-family: var(--font-mono); font-size: .74rem; letter-spacing: var(--tr-wide); text-transform: uppercase; color: var(--text-mute); display: inline-flex; align-items: center; gap: 3.5rem; }
.strip__row span::after { content: "◆"; color: var(--gold); font-size: .6rem; }
@keyframes marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .strip__row { animation: none; } }

/* ============================================================
   ECOSYSTEM (three tiers)
   ============================================================ */
.tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden; }
.tier { background: var(--obsidian-2); padding: clamp(1.6rem, 3vw, 2.6rem); display: grid; gap: 1rem; align-content: start; position: relative; transition: background .4s; }
.tier:hover { background: var(--obsidian-3); }
.tier--lead { background: var(--obsidian-3); }
.tier--lead::after { content: ""; position: absolute; inset: 0; border: 1px solid var(--line-gold); border-radius: inherit; pointer-events: none; }
.tier__step { display: flex; justify-content: space-between; align-items: center; }
.tier__flag { font-family: var(--font-mono); font-size: .62rem; letter-spacing: var(--tr-wide); text-transform: uppercase; color: var(--gold-lit); border: 1px solid var(--line-gold); border-radius: 100px; padding: .25rem .6rem; }
.tier h3 { margin-top: .2rem; }
.tier p { color: var(--text-soft); font-size: var(--fs-sm); }
.tier__meta { margin-top: .4rem; color: var(--text-mute); font-size: var(--fs-sm); }

/* ============================================================
   OS MODULES GRID (the operating layer)
   ============================================================ */
.os-lead { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(2rem, 5vw, 5rem); align-items: end; margin-bottom: clamp(2.6rem, 5vw, 4rem); }
@media (max-width: 860px){ .os-lead { grid-template-columns: 1fr; align-items: start; } }

.modules { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden; }
.module { background: var(--obsidian-2); padding: clamp(1.4rem, 2.4vw, 2rem); min-height: 172px; display: grid; grid-template-rows: auto 1fr auto; gap: .8rem; position: relative; transition: background .4s var(--ease); }
.module::before { content: ""; position: absolute; left: 0; top: 0; width: 2px; height: 0; background: linear-gradient(var(--gold-lit), var(--gold)); transition: height .5s var(--ease); }
.module:hover { background: var(--obsidian-3); }
.module:hover::before { height: 100%; }
.module__top { display: flex; justify-content: space-between; align-items: center; }
.module__no { font-family: var(--font-mono); font-size: .66rem; letter-spacing: var(--tr-wide); color: var(--text-faint); }
.module__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--obsidian-4); border: 1px solid var(--line); transition: background .4s, box-shadow .4s; }
.module:hover .module__dot { background: var(--gold-lit); box-shadow: 0 0 12px var(--glow-gold); border-color: transparent; }
.module h4 { font-size: 1.06rem; font-weight: 600; letter-spacing: var(--tr-normal); }
.module p { font-size: var(--fs-sm); color: var(--text-mute); }

/* ============================================================
   SERVICES (three gold-glass icons)
   ============================================================ */
.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-soft); border-block: 1px solid var(--line-soft); }
.service { background: var(--obsidian); padding: clamp(2rem, 4vw, 3.4rem) clamp(1.4rem, 3vw, 2.4rem); display: grid; gap: 1.1rem; justify-items: start; transition: background .4s; }
.service:hover { background: var(--obsidian-2); }
.service__icon { width: clamp(76px, 9vw, 108px); aspect-ratio: 1; filter: drop-shadow(0 14px 40px rgba(240,180,74,.22)); transition: transform .6s var(--ease-expo); }
.service:hover .service__icon { transform: translateY(-6px) rotate(-3deg); }
.service h3 { font-size: 1.2rem; }
.service p { color: var(--text-soft); font-size: var(--fs-sm); }
.service__link { margin-top: .3rem; }

/* ============================================================
   USE CASES
   ============================================================ */
.cases { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden; }
@media (max-width: 720px){ .cases { grid-template-columns: 1fr; } }
.case { background: var(--obsidian-2); padding: clamp(1.6rem, 3vw, 2.4rem); display: grid; gap: .7rem; align-content: start; transition: background .4s; }
.case:hover { background: var(--obsidian-3); }
.case__no { font-family: var(--font-mono); font-size: .66rem; letter-spacing: var(--tr-index); color: var(--gold-lit); }
.case h4 { font-size: 1.15rem; letter-spacing: var(--tr-normal); }
.case p { color: var(--text-soft); font-size: var(--fs-sm); }

/* ============================================================
   PROCESS (numbered rail)
   ============================================================ */
.steps { display: grid; gap: 0; border-top: 1px solid var(--line-soft); }
.step { display: grid; grid-template-columns: 90px 1fr; gap: clamp(1rem, 3vw, 3rem); padding-block: clamp(1.6rem, 3vw, 2.4rem); border-bottom: 1px solid var(--line-soft); align-items: start; transition: padding-left .4s var(--ease); }
.step:hover { padding-left: .6rem; }
.step__no { font-family: var(--font-mono); font-size: .8rem; letter-spacing: var(--tr-index); color: var(--gold-lit); padding-top: .3rem; }
.step__body { display: grid; gap: .5rem; max-width: 62ch; }
.step h3 { font-size: 1.3rem; }
.step p { color: var(--text-soft); }
@media (max-width: 620px){ .step { grid-template-columns: 1fr; gap: .6rem; } }

/* ============================================================
   STATS (real, count-up)
   ============================================================ */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden; }
@media (max-width: 640px){ .stats { grid-template-columns: 1fr; } }
.stat { background: var(--obsidian-2); padding: clamp(1.6rem, 3vw, 2.6rem); display: grid; gap: .5rem; }
.stat__num { font-size: clamp(2.4rem, 1.4rem + 3.4vw, 3.8rem); font-weight: 600; letter-spacing: var(--tr-tight); line-height: 1; color: var(--paper); }
.stat__num .u { color: var(--gold-lit); }
.stat__label { color: var(--text-mute); font-size: var(--fs-sm); }

/* ============================================================
   ABOUT
   ============================================================ */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
@media (max-width: 820px){ .about { grid-template-columns: 1fr; } }
.about__stmt { font-size: clamp(1.4rem, 1rem + 1.8vw, 2.2rem); line-height: 1.28; letter-spacing: var(--tr-tight); font-weight: 500; }
.about__stmt em { font-style: normal; color: var(--gold-lit); }
.about__body { display: grid; gap: 1.1rem; color: var(--text-soft); }
.about__sign { margin-top: .6rem; font-family: var(--font-mono); font-size: .72rem; letter-spacing: var(--tr-wide); text-transform: uppercase; color: var(--text-mute); }

/* ============================================================
   CTA / WAITLIST (terminal)
   ============================================================ */
.cta { position: relative; overflow: hidden; background: var(--deep); }
.cta__glow { position: absolute; left: 50%; top: 40%; width: 70vw; height: 60vh; transform: translate(-50%,-50%); background: radial-gradient(50% 50% at 50% 50%, var(--glow-gold), transparent 68%); filter: blur(40px); pointer-events: none; }
.cta__inner { position: relative; z-index: 1; display: grid; gap: 2rem; justify-items: center; text-align: center; }
.cta__title { max-width: 20ch; }
.cta__form { display: grid; gap: .8rem; width: 100%; max-width: 520px; margin-top: .6rem; }
.field { display: flex; gap: .6rem; flex-wrap: wrap; }
.field input {
  flex: 1 1 220px; min-width: 0; padding: 1.05rem 1.2rem;
  background: var(--obsidian-2); border: 1px solid var(--line);
  border-radius: 100px; color: var(--paper); font-family: var(--font-mono);
  font-size: .78rem; letter-spacing: .04em; transition: border-color .3s, background .3s;
}
.field input::placeholder { color: var(--text-faint); text-transform: uppercase; letter-spacing: var(--tr-wide); font-size: .68rem; }
.field input:focus { outline: none; border-color: var(--line-gold); background: var(--obsidian-3); }
.cta__note { font-family: var(--font-mono); font-size: .66rem; letter-spacing: var(--tr-wide); text-transform: uppercase; color: var(--text-faint); }
.cta__alt { margin-top: .4rem; }
.form-ok { display: none; color: var(--gold-lit); font-family: var(--font-mono); font-size: .74rem; letter-spacing: var(--tr-wide); text-transform: uppercase; }
.cta.is-sent .cta__form { display: none; }
.cta.is-sent .form-ok { display: block; }

/* ============================================================
   FOOTER / CONTACT
   ============================================================ */
.footer { background: var(--obsidian); border-top: 1px solid var(--line-soft); padding-block: clamp(3rem, 6vw, 5rem) 2rem; }
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.4rem; padding-bottom: 3rem; border-bottom: 1px solid var(--line-soft); }
@media (max-width: 720px){ .footer__top { grid-template-columns: 1fr; gap: 2rem; } }
.footer__brand { display: grid; gap: 1rem; align-content: start; }
.footer__lede { color: var(--text-soft); max-width: 34ch; font-size: var(--fs-sm); }
.footer__col h5 { font-family: var(--font-mono); font-size: .66rem; letter-spacing: var(--tr-wide); text-transform: uppercase; color: var(--text-faint); margin-bottom: 1rem; }
.footer__col a, .footer__col span { display: block; color: var(--text-soft); font-size: var(--fs-sm); padding-block: .35rem; transition: color .3s; }
.footer__col a:hover { color: var(--gold-lit); }
.footer__bottom { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding-top: 2rem; flex-wrap: wrap; }
.footer__bottom .label { color: var(--text-faint); }

/* ============================================================
   REVEAL (JS-driven; safe default = visible)
   ============================================================ */
.no-js .reveal, .reveal { opacity: 1; }
html.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .9s var(--ease-expo), transform .9s var(--ease-expo); }
html.js .reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html.js .reveal { opacity: 1; transform: none; transition: none; }
  .hero__media video, .hero__media img { transform: translate(-50%,-50%) scale(1); }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: block; }
  .tiers { grid-template-columns: 1fr; }
  .modules { grid-template-columns: repeat(2, 1fr); }
  .services { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .modules { grid-template-columns: 1fr; }
  .hero__index { display: none; }
  .field input { flex-basis: 100%; }
}
@media (min-width: 961px) { .sticky-cta { display: none; } }

/* ============================================================
   GUIDE (/guide) — document layout on the same tokens
   ============================================================ */
.guide-body { background: var(--obsidian); }
.guide-hero { padding-top: 8rem; padding-bottom: 3rem; border-bottom: 1px solid var(--line-soft); }
.guide-wrap { max-width: 760px; margin-inline: auto; padding-inline: var(--gutter); }
.guide section { padding-block: clamp(2.6rem, 5vw, 4rem); border-bottom: 1px solid var(--line-soft); }
.guide h2 { font-size: var(--fs-h2); text-transform: uppercase; letter-spacing: var(--tr-tight); margin-bottom: 1.2rem; }
.guide h2 .idx { display: block; font-size: .72rem; margin-bottom: .6rem; }
.guide h3 { font-size: 1.15rem; margin: 1.8rem 0 .6rem; letter-spacing: var(--tr-normal); }
.guide p { color: var(--text-soft); margin-bottom: 1rem; max-width: 68ch; }
.guide ul, .guide ol { color: var(--text-soft); margin: 0 0 1.2rem 1.1rem; display: grid; gap: .5rem; }
.guide li { padding-left: .3rem; }
.guide li::marker { color: var(--gold); }
.guide strong { color: var(--paper); font-weight: 600; }
.guide code { font-family: var(--font-mono); font-size: .82em; background: var(--obsidian-3); border: 1px solid var(--line-soft); padding: .1rem .4rem; border-radius: 5px; color: var(--gold-pale); }
.guide pre { background: var(--obsidian-2); border: 1px solid var(--line-soft); border-radius: var(--radius-sm); padding: 1.2rem; overflow-x: auto; margin-bottom: 1.4rem; }
.guide pre code { background: none; border: 0; padding: 0; color: var(--text-soft); font-size: .78rem; line-height: 1.7; }
.guide .kv { display: grid; grid-template-columns: 180px 1fr; gap: .4rem 1.4rem; margin-bottom: 1.4rem; }
.guide .kv dt { font-family: var(--font-mono); font-size: .68rem; letter-spacing: var(--tr-wide); text-transform: uppercase; color: var(--gold-lit); }
.guide .kv dd { color: var(--text-soft); }
@media (max-width: 560px){ .guide .kv { grid-template-columns: 1fr; gap: .1rem 0; } .guide .kv dd { margin-bottom: .6rem; } }
.guide-toc { display: grid; gap: .4rem; margin: 1.6rem 0; }
.guide-toc a { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .06em; color: var(--text-soft); display: flex; gap: .8rem; padding: .3rem 0; transition: color .3s; }
.guide-toc a:hover { color: var(--gold-lit); }
.guide-toc a .idx { min-width: 34px; }
.swatches { display: flex; flex-wrap: wrap; gap: .7rem; margin: 1rem 0 1.6rem; }
.sw { display: grid; gap: .4rem; font-family: var(--font-mono); font-size: .6rem; letter-spacing: .06em; color: var(--text-mute); }
.sw__chip { width: 72px; height: 48px; border-radius: 8px; border: 1px solid var(--line-soft); }