/*
 * SITS Audio placeholder site. Plain CSS, no build.
 * Follows docs/DESIGN.md v0.2: studio field, one colour field per product,
 * hard edges, no shadows, no mono font. Palettes come from the product files.
 */
@font-face {
  font-family: "Bebas Neue";
  src: url("fonts/bebas-neue-latin-400-normal.woff2") format("woff2");
  font-weight: 400; font-display: swap;
}
@font-face {
  font-family: "Inter Variable";
  src: url("fonts/inter-latin-wght-normal.woff2") format("woff2-variations");
  font-weight: 100 900; font-display: swap;
}

:root {
  --carrara: #eeede4;
  --catalina: #133479;
  --muted-blue: #586c8f;
  --bali-hai: #8b9dbc;

  /* Field variables. Defaults = studio field. */
  --bg: var(--carrara);
  --ink: var(--catalina);
  --muted: var(--muted-blue);
  --accent: var(--bali-hai);
  --accent-2: var(--bali-hai);
  --accent-3: var(--bali-hai);
  --line: color-mix(in srgb, var(--ink) 22%, transparent);

  --font-display: "Bebas Neue", "Arial Narrow", Impact, sans-serif;
  --font-sans: "Inter Variable", Inter, system-ui, -apple-system, "Segoe UI", sans-serif;

  --t-label: 0.8125rem;
  --t-small: 0.9375rem;
  --t-body: 1.0625rem;
  --t-lead: clamp(1.375rem, 1rem + 1.3vw, 2rem);
  --t-statement: clamp(1.75rem, 0.9rem + 2.6vw, 3.25rem);
  --t-display-m: clamp(3.75rem, 1.5rem + 8vw, 9rem);
  --t-display-l: clamp(4.5rem, 1rem + 15vw, 15rem);

  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px; --s-6: 24px; --s-8: 32px;
  --s-12: 48px; --s-16: 64px; --s-20: 80px; --s-30: 120px;

  --max: 1440px;
  --margin: clamp(20px, 4.2vw, 60px);
  --gutter: clamp(16px, 2vw, 32px);
  --section: clamp(var(--s-20), 9vw, var(--s-30));
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-rendering: optimizeLegibility; background: var(--carrara); }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }

body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--font-sans); font-size: var(--t-body); line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3, p, dl, dd, ul, figure { margin: 0; padding: 0; }
ul { list-style: none; }
:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; }

.skip-link { position: absolute; left: var(--s-4); top: -120px; z-index: 100; background: var(--ink); color: var(--bg); padding: var(--s-3) var(--s-4); }
.skip-link:focus { top: var(--s-4); }

/* Layout */
.wrap { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--margin); }
.grid-12 { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gutter); }
.field { background: var(--bg); color: var(--ink); }
.field--section { padding-block: var(--section); }

/* Type roles */
.display { font-family: var(--font-display); font-weight: 400; text-transform: uppercase; line-height: 0.9; letter-spacing: -0.005em; text-wrap: balance; font-size: var(--t-display-m); }
.display--l { font-size: var(--t-display-l); }
.statement { font-size: var(--t-statement); font-weight: 300; line-height: 1.18; letter-spacing: -0.015em; text-wrap: pretty; }
.lead { font-size: var(--t-lead); font-weight: 300; line-height: 1.3; letter-spacing: -0.01em; text-wrap: pretty; }
.body { max-width: 56ch; }
.quiet { color: var(--muted); }
.label { font-size: var(--t-label); font-weight: 500; text-transform: uppercase; letter-spacing: 0.1em; line-height: 1.3; color: var(--muted); }
.accent { color: var(--accent); }
.arrow { font-size: var(--t-label); font-weight: 500; text-transform: uppercase; letter-spacing: 0.1em; text-decoration: none; display: inline-flex; align-items: center; min-height: 44px; }
.arrow::before { content: "\2192"; margin-right: 0.6em; }
.arrow:hover { text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 1px; }

/* Logo */
.logo { width: auto; height: 34px; overflow: visible; }

/* Header */
.bar { display: flex; align-items: center; justify-content: space-between; gap: var(--s-6); min-height: 80px; }
.home { display: inline-flex; padding-block: var(--s-3); }
.bar ul { display: flex; gap: clamp(var(--s-4), 3vw, 40px); }
.bar nav a { display: inline-flex; align-items: center; min-height: 44px; font-size: var(--t-label); font-weight: 500; text-transform: uppercase; letter-spacing: 0.1em; text-decoration: none; }
.bar nav a:hover { text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 1px; }

/* Launch strip */
.launch { margin: 0; padding: var(--s-2) var(--margin); text-align: center; background: var(--catalina); color: var(--carrara); }

/* Opening */
.opening { padding-block: clamp(var(--s-12), 6vw, var(--s-20)) var(--section); }
.hero-copy { grid-column: 1 / span 7; display: grid; gap: var(--s-6); align-content: center; }
.opening .statement { max-width: 16ch; }
.opening .support { max-width: 30ch; }

/* Studio band */
.studio { padding-block: var(--section) calc(var(--section) + 40px); }
.studio .rail { grid-column: 1 / span 2; padding-top: 0.7em; }
.studio .main { grid-column: 4 / span 7; display: grid; gap: var(--s-6); justify-items: start; }
.studio .lead a { text-underline-offset: 5px; text-decoration-thickness: 1px; }
.index { grid-column: 1 / -1; margin-top: clamp(var(--s-16), 9vw, 140px); border-top: 1px solid var(--line); }
.index li { border-bottom: 1px solid var(--line); }
.index a {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 4fr) minmax(0, 2fr) auto; gap: var(--gutter);
  align-items: baseline; padding-block: var(--s-4); text-decoration: none;
}
.index .n { font-family: var(--font-display); text-transform: uppercase; font-size: clamp(1.75rem, 1.2rem + 2vw, 2.75rem); line-height: 1; }
.index .d { color: var(--muted); font-size: var(--t-small); }
.index .go::before { content: "\2192"; }
.index a:hover .n { text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 2px; }

/* Product fields */
.product { padding-block: var(--section); }
.product .intro { margin-top: clamp(var(--s-8), 4vw, var(--s-16)); row-gap: var(--s-8); }
.copy { grid-column: 1 / span 7; display: grid; gap: var(--s-4); align-content: start; }
.facts { grid-column: 9 / -1; display: grid; gap: var(--s-3); align-content: start; }
.facts div { display: grid; grid-template-columns: 7.5em 1fr; gap: var(--s-3); border-top: 1px solid var(--line); padding-top: var(--s-3); }
.facts dd { font-size: var(--t-small); }
.status { display: inline-flex; align-items: center; gap: var(--s-2); }
.status::before { content: ""; width: 8px; height: 8px; background: var(--accent); }

.shot { margin-top: clamp(var(--s-12), 6vw, var(--s-20)); }
.shot--center { max-width: 1180px; margin-inline: auto; }
.shot--motion { max-width: 880px; }
.shot img { width: 100%; }
.shot figcaption, .tile figcaption { margin-top: var(--s-4); display: grid; gap: var(--s-1); }
.shot figcaption b, .tile figcaption b { font-size: var(--t-label); font-weight: 500; text-transform: uppercase; letter-spacing: 0.1em; }
.shot figcaption span, .tile figcaption span { color: var(--muted); font-size: var(--t-small); max-width: 52ch; }

.two, .three { display: grid; gap: var(--gutter); margin-top: clamp(var(--s-12), 5vw, var(--s-16)); align-items: start; }
.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.two .shot, .three .shot { margin-top: 0; }
.tone-1 b { color: var(--accent); }
.tone-2 b { color: var(--accent-2); }
.tone-3 b { color: var(--accent-3); }
.three .tile { border-top: 2px solid currentColor; padding-top: var(--s-3); display: grid; gap: var(--s-1); }
.three .tile p { color: var(--ink); }
.strips { display: grid; gap: var(--s-8); margin-top: clamp(var(--s-12), 5vw, var(--s-16)); }
.strips .shot { margin-top: 0; }

/* Telemetry split */
.split { align-items: center; row-gap: var(--s-12); }
.split .copy { grid-column: 1 / span 5; }
.split .shot { grid-column: 7 / -1; margin-top: 0; }
.split .facts-inline { margin-top: var(--s-6); max-width: 28rem; }

/* Footer */
.site-footer { --bg: var(--catalina); --ink: var(--carrara); --muted: #aab8d6; position: relative; background: var(--bg); color: var(--ink); padding-block: clamp(96px, 12vw, 180px) var(--s-8); }
.seam { position: absolute; inset-inline: 0; top: 0; transform: translateY(calc(-100% + 1px)); pointer-events: none; }
.seam svg { width: 100%; height: clamp(28px, 5vw, 56px); }
.signup { grid-column: 1 / span 6; display: grid; gap: var(--s-4); align-content: start; }
.signup .statement { max-width: 16ch; }
.flinks { grid-column: 9 / -1; display: grid; gap: var(--s-1); align-content: start; }
.flinks a { display: inline-flex; min-height: 36px; align-items: center; font-size: var(--t-small); text-decoration: none; }
.flinks a:hover, .legal a:hover { text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; }
.site-footer .big { height: clamp(72px, 12vw, 180px); margin-block: clamp(80px, 10vw, 160px) var(--s-6); }
.site-footer .tag { margin-bottom: var(--s-12); color: inherit; opacity: 0.85; }
.legal { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--s-4) var(--s-8); padding-top: var(--s-6); border-top: 1px solid var(--line); font-size: var(--t-small); color: var(--muted); }
.legal a { color: inherit; }

@media (max-width: 860px) {
  .hero-copy,     .studio .rail, .studio .main, .copy, .facts, .signup, .flinks, .split .copy, .split .shot { grid-column: 1 / -1; }
  .index a { grid-template-columns: 1fr auto; row-gap: var(--s-1); }
  .index .d { grid-column: 1 / -1; order: 3; }
  .index .st { display: none; }
  .two { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .three { grid-template-columns: 1fr; }
  .bar { min-height: 64px; }
  .logo { height: 28px; }
  .bar ul { gap: var(--s-4); }
  .bar nav a { font-size: 0.75rem; letter-spacing: 0.08em; }
}