/* ============================================================
   Weststar Engineering — Main Stylesheet
   Depends on tokens.css (load tokens.css first).
   ============================================================ */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: auto; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
h1, h2, h3 { margin: 0; font-family: var(--font-display); font-weight: 500; letter-spacing: -0.02em; }
p { margin: 0; }

/* Visible keyboard focus (a11y floor) */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Atmospheric texture: faint grid, sits behind everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.022) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 120% 80% at 50% 0%, #000 30%, transparent 80%);
}

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { position: relative; z-index: 1; padding-block: var(--section-y); }
.section--tight { padding-block: clamp(3.5rem, 7vw, 6rem); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent);
  opacity: 0.7;
}

.lead { font-size: var(--fs-lead); color: var(--text-muted); max-width: 54ch; line-height: 1.55; }
.muted { color: var(--text-muted); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur) var(--ease-out),
              border-color var(--dur) var(--ease-out);
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--accent-grad); color: #03121f; font-weight: 500; }
.btn--primary:hover { box-shadow: var(--shadow-glow); }
.btn--ghost { border-color: var(--border-strong); color: var(--text); }
.btn--ghost:hover { background: var(--surface-2); border-color: var(--accent); }
.btn .arrow { transition: transform var(--dur) var(--ease-out); }
.btn:hover .arrow { transform: translateX(4px); }

/* ============================================================
   NAVBAR
   ============================================================ */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem var(--gutter);
  transition: background var(--dur) var(--ease-out),
              border-color var(--dur) var(--ease-out),
              backdrop-filter var(--dur) var(--ease-out),
              padding var(--dur) var(--ease-out);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(10, 12, 16, 0.72);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--border);
  padding-block: 0.8rem;
}
.nav__brand { display: flex; align-items: center; gap: 0.7rem; font-family: var(--font-display); font-weight: 700; letter-spacing: -0.01em; font-size: 1.05rem; }
.nav__brand img { height: 34px; width: auto; display: block; } /* real logo: white-on-transparent, no filter */
@media (max-width: 480px) { .nav__brand img { height: 28px; } } /* cap on small screens so it never overflows */
.nav__links { display: flex; align-items: center; gap: 1.9rem; }
.nav__link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--dur-fast) var(--ease-out);
}
.nav__link:hover { color: var(--text); }
.nav__cta { margin-left: 0.4rem; }

.nav__toggle { display: none; background: none; border: 0; width: 40px; height: 40px; position: relative; }
.nav__toggle span { position: absolute; left: 8px; right: 8px; height: 1.5px; background: var(--text); transition: transform var(--dur) var(--ease-out), opacity var(--dur) var(--ease-out); }
.nav__toggle span:nth-child(1) { top: 14px; }
.nav__toggle span:nth-child(2) { top: 20px; }
.nav__toggle span:nth-child(3) { top: 26px; }

@media (max-width: 900px) {
  .nav__cta { display: none; }
  .nav__toggle { display: block; }
  .nav__links {
    position: fixed; inset: 0; z-index: -1;
    flex-direction: column; justify-content: center; gap: 1.5rem;
    background: rgba(6, 7, 10, 0.96);
    backdrop-filter: blur(20px);
    opacity: 0; pointer-events: none;
    transition: opacity var(--dur) var(--ease-out);
  }
  .nav__link { font-size: 1.05rem; }
  .nav.is-open .nav__links { opacity: 1; pointer-events: auto; }
  .nav.is-open .nav__toggle span:nth-child(1) { top: 20px; transform: rotate(45deg); }
  .nav.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
  .nav.is-open .nav__toggle span:nth-child(3) { top: 20px; transform: rotate(-45deg); }
}

/* ============================================================
   SCRUB CANVAS SECTION  (the signature element)
   Tall section drives scroll; sticky inner pins; canvas scrubs.
   ============================================================ */
.scrub { position: relative; z-index: 1; height: 400vh; }
.scrub--tunnel { height: 420vh; }
@media (max-width: 1024px) { .scrub { height: 340vh; } .scrub--tunnel { height: 380vh; } }
@media (max-width: 768px)  { .scrub { height: 280vh; } .scrub--tunnel { height: 320vh; } }

.scrub__sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; background: var(--bg-deep); }
.scrub__canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

/* legibility vignette over the footage */
.scrub__sticky::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(180deg, rgba(6,7,10,0.55) 0%, transparent 22%, transparent 60%, rgba(6,7,10,0.85) 100%),
    radial-gradient(ellipse 90% 60% at 50% 50%, transparent 40%, rgba(6,7,10,0.45) 100%);
}
.scrub__overlay { position: absolute; inset: 0; z-index: 2; }

/* Hero text block, centered, fades out on first scroll */
.hero {
  position: absolute; left: 0; right: 0; top: 50%;
  transform: translateY(-50%);
  text-align: center;
  padding-inline: var(--gutter);
  will-change: opacity;
}
.hero__title { font-size: var(--fs-hero); line-height: var(--lh-tight); max-width: 16ch; margin-inline: auto; }
.hero__title em { font-style: normal; background: var(--accent-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
/* Headline TYPEWRITER entrance (js/hero-intro.js). Characters are split into spans in
   JS and revealed via opacity only (no insertion/removal -> no reflow during typing).
   No-JS / reduced-motion leave the full headline visible. The scroll fade-out stays on
   the .hero parent, so it's unaffected. The caret is width:0 + a 2px right border, so
   moving it after each character never shifts the text. */
.hero__caret {
  display: inline-block;
  width: 0;
  height: 0.82em;
  vertical-align: -0.06em;
  border-right: 2px solid var(--accent);
  animation: heroCaretBlink 0.9s steps(1, end) infinite;
}
@keyframes heroCaretBlink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }
.hero__caret.is-done { animation: none; opacity: 0; transition: opacity 0.4s var(--ease-out); }
.hero__sub { margin: 1.6rem auto 0; max-width: 50ch; color: var(--text-muted); font-size: var(--fs-lead); }

/* Annotation cards pinned over the canvas, toggled by scroll progress */
.anno {
  position: absolute;
  /* Mobile default: one centred, bottom-anchored slot. Cards show one at a time
     (staggered data-show/hide), so this stays readable and never overlaps. left:0
     + right:0 + margin-inline:auto centres it, leaving transform free for the fade. */
  left: 0; right: 0;
  bottom: clamp(4.5rem, 12vh, 8rem);
  width: min(88vw, 480px);
  margin-inline: auto;
  max-width: 480px;
  padding: 1.9rem 2.1rem;
  background: rgba(10, 12, 16, 0.55);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
  pointer-events: none;
}
.anno.is-visible { opacity: 1; transform: translateY(0); }
.anno__num { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.2em; color: var(--accent); }
.anno__title { font-family: var(--font-display); font-size: clamp(1.5rem, 2.2vw, 1.9rem); line-height: var(--lh-snug); margin: 0.7rem 0 0.55rem; }
.anno__body { font-size: var(--fs-body); color: var(--text-muted); line-height: 1.55; }
@media (max-width: 520px) {
  .anno { width: 88vw; padding: 1.6rem 1.7rem; }
  .anno__title { font-size: 1.5rem; }
}
/* Desktop: spread the three cards across distinct regions of the hero. The hero
   headline has already faded by the time they appear, so the whole viewport is
   free — keep each off the bright centre and inside safe margins. */
@media (min-width: 768px) {
  .anno { left: auto; right: auto; bottom: auto; width: auto; margin-inline: 0; }
  .anno--tl { top: clamp(7rem, 16vh, 11rem); left: var(--gutter); }   /* card 1 — top-left */
  .anno--mr { top: 42%; right: var(--gutter); }                       /* card 2 — middle-right */
  .anno--bl { bottom: clamp(5rem, 13vh, 9rem); left: var(--gutter); } /* card 3 — bottom-left */
}

/* Scroll hint */
.scroll-hint {
  position: absolute; left: 50%; bottom: 2.2rem; transform: translateX(-50%);
  display: grid; place-items: center; gap: 0.5rem; z-index: 3;
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--text-dim);
}
.scroll-hint .mouse { width: 22px; height: 34px; border: 1.5px solid var(--text-dim); border-radius: 12px; position: relative; }
.scroll-hint .mouse::after { content: ""; position: absolute; left: 50%; top: 6px; width: 3px; height: 6px; border-radius: 2px; background: var(--accent); transform: translateX(-50%); animation: hint 1.6s var(--ease-out) infinite; }
@keyframes hint { 0%,100% { transform: translate(-50%, 0); opacity: 1; } 50% { transform: translate(-50%, 8px); opacity: 0.3; } }

/* ---- Tunnel narrative beats: synced storytelling over the scrub ----
   Toggled by the engine's [data-card] is-visible mechanism (data-show/hide).
   Outer .beat = fade/slide entrance; inner wrapper = scroll-linked parallax
   drift via --beat-p (set per frame in main.js). The two transforms live on
   separate elements so they don't fight. */
.beat {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  text-align: center; padding-inline: var(--gutter);
  opacity: 0; visibility: hidden;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out), visibility 0.7s;
  pointer-events: none; will-change: opacity, transform;
}
.beat.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.beat__inner {
  position: relative; max-width: 48ch; margin-inline: auto;
  /* parallax: drift upward (+24px -> -24px) as you scroll through the beat */
  transform: translateY(calc((0.5 - var(--beat-p, 0.5)) * 48px));
  will-change: transform;
}
.beat__inner::before {
  /* soft legibility scrim behind the text — radial, no hard box */
  content: ""; position: absolute; left: 50%; top: 50%;
  width: 150%; height: 220%; transform: translate(-50%, -50%);
  z-index: -1; pointer-events: none;
  background: radial-gradient(ellipse 60% 60% at 50% 50%, var(--scrim-deep) 0%, transparent 72%);
}
.beat__title { font-size: var(--fs-h2); line-height: var(--lh-snug); max-width: 20ch; margin-inline: auto; }
.beat__sub { margin-top: 1.1rem; color: var(--text-muted); font-size: var(--fs-lead); max-width: 42ch; margin-inline: auto; }

/* ============================================================
   STANDARD SECTIONS
   ============================================================ */
.section-head { max-width: 60ch; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head h2 { font-size: var(--fs-h2); line-height: var(--lh-snug); }
.section-head .lead { margin-top: 1.2rem; }

/* What we do — split intro */
.intro-split { display: grid; grid-template-columns: 1fr; gap: 2.5rem; align-items: end; }
@media (min-width: 860px) { .intro-split { grid-template-columns: 1.2fr 1fr; } }
.intro-split h2 { font-size: var(--fs-h2); line-height: var(--lh-snug); }

/* Pillars — 4 big cards */
.pillars { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(1rem, 2vw, 1.5rem); }
@media (max-width: 720px) { .pillars { grid-template-columns: 1fr; } }
.pillar {
  position: relative;
  padding: clamp(1.6rem, 3vw, 2.4rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease-out), transform var(--dur) var(--ease-out), background var(--dur) var(--ease-out);
}
.pillar:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--surface-2); }
.pillar::after { content: ""; position: absolute; inset: 0; border-radius: inherit; opacity: 0; transition: opacity var(--dur) var(--ease-out); background: radial-gradient(120% 80% at 0% 0%, var(--glow-soft), transparent 60%); }
.pillar:hover::after { opacity: 1; }
.pillar__num { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.2em; color: var(--accent); }
.pillar h3 { font-size: var(--fs-h3); margin: 0.9rem 0 0.7rem; }
.pillar p { color: var(--text-muted); font-size: var(--fs-sm); }
.pillar__tags { margin-top: 1.2rem; display: flex; flex-wrap: wrap; gap: 0.45rem; }
.tag { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.04em; padding: 0.3rem 0.65rem; border: 1px solid var(--border); border-radius: var(--radius-pill); color: var(--text-muted); }
/* Optional "Learn more" link on a pillar card (sits above the hover-glow ::after) */
.pillar__link { position: relative; z-index: 1; margin-top: 1.4rem; display: inline-flex; align-items: center; gap: 0.45rem; font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); transition: gap var(--dur) var(--ease-out); }
.pillar__link:hover { gap: 0.75rem; }

/* Services grid — the 10 additional offerings */
.svc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: clamp(0.8rem, 1.5vw, 1.1rem); }
.svc {
  display: flex; align-items: center; gap: 0.9rem;
  padding: 1.15rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease-out), background var(--dur) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.svc:hover { border-color: var(--accent); background: var(--surface-2); transform: translateX(4px); }
.svc .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-grad); flex: none; box-shadow: 0 0 12px var(--glow); }
.svc span { font-size: var(--fs-sm); }

/* Capabilities — IT sub-tiles list */
.caps { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.cap { background: var(--bg-elev); padding: 1.6rem 1.5rem; transition: background var(--dur) var(--ease-out); }
.cap:hover { background: var(--surface-2); }
.cap__idx { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-dim); letter-spacing: 0.18em; }
.cap h3 { font-size: 1.15rem; margin: 0.7rem 0 0.4rem; }
.cap p { font-size: var(--fs-sm); color: var(--text-muted); }

/* Clients */
.clients { display: flex; flex-wrap: wrap; gap: clamp(1.5rem, 5vw, 4rem); align-items: center; justify-content: center; }
.client {
  font-family: var(--font-display); font-weight: 500; font-size: clamp(1rem, 2.2vw, 1.4rem);
  color: var(--text-dim); letter-spacing: -0.01em;
  transition: color var(--dur) var(--ease-out);
}
.client:hover { color: var(--text); }

/* Case studies */
.cases { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
@media (min-width: 760px) { .cases { grid-template-columns: 1fr 1fr; } }
.case {
  position: relative; padding: clamp(1.8rem, 3.5vw, 2.6rem);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  min-height: 240px; display: flex; flex-direction: column; justify-content: space-between;
  transition: border-color var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}
.case:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.case__label { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); }
.case h3 { font-size: var(--fs-h3); margin-top: 0.8rem; max-width: 22ch; }
.case__link { margin-top: 1.5rem; font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.04em; color: var(--text); display: inline-flex; gap: 0.4rem; }

/* CTA */
.cta { text-align: center; }
.cta h2 { font-size: clamp(2rem, 5vw, 4rem); line-height: 1.05; max-width: 18ch; margin: 0 auto 1.6rem; }
.cta .lead { margin: 0 auto 2.4rem; text-align: center; }
.cta__actions { display: flex; gap: 0.9rem; justify-content: center; flex-wrap: wrap; }

/* ============================================================
   INNER PAGES (case studies + service pages) — clean & light, no canvas
   Shared by all templated inner pages; tokens only.
   ============================================================ */
/* Text hero that clears the fixed nav */
.page-hero { position: relative; z-index: 1; padding-block: clamp(7.5rem, 15vh, 11rem) clamp(2.5rem, 5vw, 4rem); }
.page-hero__title { font-size: clamp(2rem, 4.6vw, 3.6rem); line-height: var(--lh-snug); max-width: 22ch; margin-top: 1.1rem; }
.page-hero__lead { margin-top: 1.6rem; max-width: 60ch; }

/* Back link (mono, subtle) */
.backlink { display: inline-flex; align-items: center; gap: 0.5rem; font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); transition: color var(--dur-fast) var(--ease-out); }
.backlink:hover { color: var(--text); }
.backlink .arrow { transition: transform var(--dur) var(--ease-out); }
.backlink:hover .arrow { transform: translateX(-3px); }

/* Prose block (overview / feedback body) */
.prose { max-width: 72ch; display: grid; gap: 1.2rem; }
.prose p { color: var(--text-muted); }
.prose strong { color: var(--text); font-weight: 500; }

/* Stat callouts — big number + small label */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.stat { background: var(--bg-elev); padding: clamp(1.6rem, 3vw, 2.4rem); transition: background var(--dur) var(--ease-out); }
.stat:hover { background: var(--surface-2); }
.stat__num { font-family: var(--font-display); font-weight: 500; font-size: clamp(1.9rem, 4vw, 2.7rem); line-height: 1.05; letter-spacing: -0.02em; color: var(--accent); background: var(--accent-grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat__label { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-muted); margin-top: 0.9rem; }

/* Services list — numbered term + description */
.svc-list { display: grid; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.svc-item { background: var(--bg-elev); padding: clamp(1.3rem, 2.4vw, 1.8rem) clamp(1.4rem, 2.4vw, 2rem); display: grid; grid-template-columns: 2.6rem 1fr; gap: 0 1rem; align-items: start; transition: background var(--dur) var(--ease-out); }
.svc-item:hover { background: var(--surface-2); }
.svc-item__idx { font-family: var(--font-mono); font-size: 0.74rem; color: var(--accent); letter-spacing: 0.1em; padding-top: 0.25rem; }
.svc-item h3 { font-size: 1.1rem; margin: 0 0 0.4rem; }
.svc-item p { color: var(--text-muted); font-size: var(--fs-sm); max-width: 70ch; }

/* Customer feedback — accent callout card */
.feedback { max-width: 64ch; padding: clamp(1.8rem, 3.5vw, 2.6rem); background: var(--surface); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); }
.feedback p { font-family: var(--font-display); font-weight: 400; font-size: var(--fs-lead); line-height: 1.5; color: var(--text); }
.feedback__note { margin-top: 1.1rem; font-size: var(--fs-sm); color: var(--text-dim); font-style: italic; }

/* Sequential lifecycle / process steps (numbered — reads as an ordered flow) */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.step { background: var(--bg-elev); padding: clamp(1.6rem, 3vw, 2.2rem); transition: background var(--dur) var(--ease-out); }
.step:hover { background: var(--surface-2); }
.step__no { font-family: var(--font-display); font-weight: 500; font-size: clamp(1.8rem, 3.5vw, 2.6rem); line-height: 1; letter-spacing: -0.02em; color: var(--accent); background: var(--accent-grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.step h3 { font-size: 1.15rem; margin: 0.8rem 0 0.4rem; }
.step p { font-size: var(--fs-sm); color: var(--text-muted); }

/* Chip row — small wrap of .tag pills (badges, tech pillars) */
.chip-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { position: relative; z-index: 1; border-top: 1px solid var(--border); padding-block: clamp(3rem, 6vw, 5rem) 2rem; background: var(--bg-deep); }
.footer__grid { display: grid; grid-template-columns: 1fr; gap: 2.5rem; }
@media (min-width: 760px) { .footer__grid { grid-template-columns: 1.5fr 1fr 1.2fr; } }
.footer__brand img { height: 44px; width: auto; display: block; } /* real logo: white-on-transparent, no filter */
.footer__tag { color: var(--text-muted); max-width: 32ch; margin-top: 1.1rem; font-size: var(--fs-sm); }
.footer h4 { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-dim); margin: 0 0 1.1rem; }
.footer__links { display: grid; gap: 0.7rem; }
.footer__links a { font-size: var(--fs-sm); color: var(--text-muted); transition: color var(--dur-fast) var(--ease-out); }
.footer__links a:hover { color: var(--text); }
.footer__addr { font-size: var(--fs-sm); color: var(--text-muted); line-height: 1.6; font-style: normal; }
.footer__bottom { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--border); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-dim); letter-spacing: 0.04em; }

/* ============================================================
   PRELOADER
   ============================================================ */
.preloader {
  position: fixed; inset: 0; z-index: var(--z-preloader);
  background: var(--bg-deep);
  display: grid; place-items: center;
  transition: opacity 0.6s var(--ease-out), visibility 0.6s;
}
.preloader.is-done { opacity: 0; visibility: hidden; }
.preloader__inner { text-align: center; }
.preloader__mark { font-family: var(--font-display); font-weight: 700; font-size: 1.4rem; letter-spacing: -0.01em; margin-bottom: 1.4rem; }
.preloader__bar { width: 200px; height: 2px; background: var(--surface-2); border-radius: 2px; overflow: hidden; margin: 0 auto; }
.preloader__fill { height: 100%; width: 0; background: var(--accent-grad); transition: width 0.2s linear; }
.preloader__label { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--text-dim); margin-top: 1rem; }

/* ============================================================
   Reveal initial state (JS toggles via GSAP; CSS fallback below)
   ============================================================ */
[data-reveal] { will-change: transform, opacity; }

/* If JS/GSAP unavailable or reduced motion: show everything, no transform */
.no-anim [data-reveal] { opacity: 1 !important; transform: none !important; }

/* Tunnel beats: if the scrub engine can't run (no GSAP/ScrollTrigger), collapse
   the tall section and show all four beats as a readable vertical stack. */
.no-anim .scrub--tunnel { height: auto; }
.no-anim .scrub--tunnel .scrub__sticky { position: static; height: auto; overflow: visible; }
.no-anim .scrub--tunnel .scrub__canvas,
.no-anim .scrub--tunnel .scrub__sticky::after { display: none; }
.no-anim .scrub--tunnel .scrub__overlay { position: static; }
.no-anim .scrub--tunnel .beat { position: static; opacity: 1; visibility: visible; transform: none; pointer-events: auto; padding-block: clamp(2.5rem, 6vw, 4.5rem); }
.no-anim .scrub--tunnel .beat__inner { transform: none; max-width: 60ch; }
.no-anim .scrub--tunnel .beat__inner::before { display: none; }

@media (prefers-reduced-motion: reduce) {
  .scroll-hint, .scroll-hint .mouse::after { animation: none; }
  * { scroll-behavior: auto !important; }

  /* The tunnel narrative must stay fully readable without scroll choreography:
     collapse the section and stack all four beats as a normal list. */
  .scrub--tunnel { height: auto; }
  .scrub--tunnel .scrub__sticky { position: static; height: auto; overflow: visible; }
  .scrub--tunnel .scrub__canvas,
  .scrub--tunnel .scrub__sticky::after { display: none; }
  .scrub--tunnel .scrub__overlay { position: static; }
  .scrub--tunnel .beat { position: static; opacity: 1; visibility: visible; transform: none; pointer-events: auto; padding-block: clamp(2.5rem, 6vw, 4.5rem); }
  .scrub--tunnel .beat__inner { transform: none; max-width: 60ch; }
  .scrub--tunnel .beat__inner::before { display: none; }
}