/* ============================================================================
   Stintwise — site styles ("pit-wall telemetry")
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.04; letter-spacing: -0.01em; margin: 0; }
p { margin: 0; }
.mono { font-family: var(--font-mono); }
.accent { color: var(--accent); }

/* ---- centered content column ---- */
.bar, .hero, .how, .contribute, .privacy-inner {
  width: min(100% - 2 * var(--space-3), var(--maxw));
  margin-inline: auto;
}

/* ---- background instrument layers ---- */
.bg-grid, .bg-glow { position: fixed; inset: 0; z-index: -1; pointer-events: none; }
.bg-grid {
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(125% 90% at 50% 0%, #000 0%, transparent 72%);
          mask-image: radial-gradient(125% 90% at 50% 0%, #000 0%, transparent 72%);
  opacity: 0.4;
}
.bg-glow {
  background:
    radial-gradient(58% 40% at 50% -8%, var(--accent-soft) 0%, transparent 60%),
    radial-gradient(42% 30% at 88% 6%, rgba(54, 242, 166, 0.05) 0%, transparent 60%);
}

/* ---- header / nav ---- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(10, 12, 16, 0.82);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header .bar { display: flex; align-items: center; justify-content: space-between; padding-block: var(--space-3); }
.brand { display: inline-flex; align-items: center; gap: 0.65rem; color: var(--text); }
.brand-mark {
  width: 13px; height: 22px; border-radius: 2px;
  background: linear-gradient(180deg, var(--accent-bright), var(--accent-deep));
  box-shadow: 0 0 18px var(--accent-soft);
  transform: skewX(-12deg);
}
.brand-name { font-family: var(--font-display); font-weight: 700; letter-spacing: 0.14em; font-size: 1.05rem; }

.site-nav { display: flex; align-items: center; gap: var(--space-3); }
.nav-link { font-family: var(--font-mono); font-size: var(--step--1); letter-spacing: 0.02em; color: var(--text-dim); position: relative; padding-block: 0.3rem; transition: color 0.2s var(--ease); }
.nav-link:hover { color: var(--text); }
a.nav-link::after { content: ""; position: absolute; left: 0; bottom: -2px; height: 1px; width: 0; background: var(--accent); transition: width 0.25s var(--ease); }
a.nav-link:hover::after { width: 100%; }
.nav-soon { display: inline-flex; align-items: center; gap: 0.45rem; cursor: default; }
.tag-soon { font-size: 0.6rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); border: 1px solid var(--accent-soft); border-radius: 999px; padding: 0.06rem 0.42rem; }
.nav-ext::before { content: "↗"; color: var(--text-faint); margin-right: 0.3rem; }

/* ---- buttons ---- */
.btn { display: inline-flex; align-items: center; gap: 0.55rem; font-family: var(--font-mono); font-size: var(--step--1); letter-spacing: 0.04em; text-transform: uppercase; padding: 0.85rem 1.4rem; border-radius: var(--radius); border: 1px solid transparent; background: transparent; -webkit-appearance: none; appearance: none; cursor: pointer; transition: transform 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease); }
.btn .arrow { transition: transform 0.2s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }
.btn-primary { background: var(--accent); color: #0a0c10; font-weight: 500; }
.btn-primary:hover { background: var(--accent-bright); transform: translateY(-2px); box-shadow: 0 14px 32px -12px var(--accent-soft); }
.btn-ghost { color: var(--text); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--text-dim); transform: translateY(-2px); }

/* ---- hero ---- */
.hero { padding-block: clamp(var(--space-5), 11vh, var(--space-6)) var(--space-6); }
.eyebrow { font-family: var(--font-mono); font-size: var(--step--1); letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-dim); display: inline-flex; align-items: center; gap: 0.6rem; margin: 0 0 var(--space-3); }
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--live); box-shadow: 0 0 0 0 var(--live); animation: pulse 2.4s var(--ease) infinite; }
.hero-title { font-size: var(--step-4); font-weight: 700; max-width: 15ch; }
.hero-sub { color: var(--text-dim); font-size: var(--step-1); max-width: 56ch; margin: var(--space-3) 0 var(--space-4); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-2); }

/* telemetry readout */
.telemetry { margin-top: var(--space-5); max-width: 30rem; border: 1px solid var(--line); border-radius: var(--radius-lg); background: linear-gradient(180deg, var(--surface), var(--bg-2)); padding: var(--space-2); box-shadow: var(--shadow); position: relative; }
.telemetry::before { content: "// EXAMPLE"; position: absolute; top: -0.55rem; left: var(--space-2); font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.12em; color: var(--text-faint); background: var(--bg); padding: 0 0.4rem; }
.tele-row { display: flex; justify-content: space-between; gap: var(--space-2); font-family: var(--font-mono); font-size: var(--step--1); padding: 0.45rem 0.3rem; border-bottom: 1px dashed var(--line); }
.tele-row:last-of-type { border-bottom: 0; }
.tele-k { color: var(--text-faint); letter-spacing: 0.1em; }
.tele-v { color: var(--text); }
.tele-v i { color: var(--accent); font-style: normal; }
.tele-bar { height: 6px; border-radius: 999px; background: var(--surface-2); margin: 0.55rem 0.3rem 0.2rem; overflow: hidden; }
.tele-bar i { display: block; height: 100%; width: var(--w); background: linear-gradient(90deg, var(--accent-deep), var(--accent-bright)); animation: fill 1.6s var(--ease) both; }

/* ---- section scaffolding ---- */
.section-label { font-size: var(--step--1); letter-spacing: 0.16em; color: var(--accent); margin: 0 0 var(--space-3); }
.how, .contribute { padding-block: var(--space-5); border-top: 1px solid var(--line); }

/* steps */
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-3); grid-template-columns: repeat(3, 1fr); }
.step { border: 1px solid var(--line); border-radius: var(--radius-lg); background: linear-gradient(180deg, var(--surface), transparent); padding: var(--space-3); position: relative; overflow: hidden; transition: border-color 0.25s var(--ease), transform 0.25s var(--ease); }
.step::before { content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 2px; background: linear-gradient(90deg, var(--accent), transparent); transform: scaleX(0); transform-origin: left; transition: transform 0.3s var(--ease); }
.step:hover { border-color: var(--line-2); transform: translateY(-3px); }
.step:hover::before { transform: scaleX(1); }
.step-n { display: block; font-family: var(--font-mono); font-size: 1.5rem; color: var(--accent); margin-bottom: var(--space-2); opacity: 0.85; }
.step h3 { font-size: var(--step-1); margin-bottom: 0.5rem; }
.step p { color: var(--text-dim); }

/* privacy manifesto (full-bleed) */
.privacy { padding-block: var(--space-6); border-top: 1px solid var(--line); background: radial-gradient(80% 130% at 50% 0%, var(--accent-soft), transparent 58%); }
.privacy-inner { text-align: center; }
.privacy-head { font-size: var(--step-3); margin: 0 auto var(--space-3); }
.privacy-sub { color: var(--text-dim); font-size: var(--step-1); max-width: 58ch; margin-inline: auto; }

/* contribute */
.contribute-card { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; border: 1px solid var(--line); border-radius: var(--radius-lg); background: linear-gradient(120deg, var(--surface), var(--bg-2)); padding: var(--space-4); }
.contribute-card h2 { font-size: var(--step-2); margin-bottom: 0.5rem; }
.contribute-card p { color: var(--text-dim); max-width: 48ch; }

/* ---- footer (full-bleed) ---- */
.site-footer { padding-block: var(--space-5) var(--space-3); margin-top: var(--space-6); border-top: 1px solid var(--line); background: var(--bg-2); }
.footer-inner { display: flex; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; }
.footer-brand .brand-name { font-size: 1.1rem; }
.footer-tag { color: var(--text-dim); max-width: 42ch; margin-top: 0.6rem; }
.footer-links { display: flex; gap: var(--space-3); align-items: center; flex-wrap: wrap; }
.footer-links a { color: var(--text-dim); font-family: var(--font-mono); font-size: var(--step--1); }
.footer-links a:hover { color: var(--text); }
.footer-soon { color: var(--text-faint); font-family: var(--font-mono); font-size: var(--step--1); }
.footer-rule { display: flex; justify-content: space-between; gap: var(--space-2); flex-wrap: wrap; margin-top: var(--space-4); padding-top: var(--space-3); border-top: 1px solid var(--line); color: var(--text-faint); font-size: 0.68rem; letter-spacing: 0.08em; }

/* ---- entrance animation (staggered hero reveal) ---- */
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 var(--live); } 70% { box-shadow: 0 0 0 7px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
@keyframes fill { from { width: 0; } }
.hero > * { animation: rise 0.7s var(--ease) both; }
.hero > .eyebrow      { animation-delay: 0.05s; }
.hero > .hero-title   { animation-delay: 0.12s; }
.hero > .hero-sub     { animation-delay: 0.2s; }
.hero > .hero-actions { animation-delay: 0.28s; }
.hero > .telemetry    { animation-delay: 0.36s; }

/* ---- responsive ---- */
@media (max-width: 820px) {
  .steps { grid-template-columns: 1fr; }
  .site-nav { gap: var(--space-2); }
  .nav-link { font-size: 0.72rem; }
  .nav-soon .tag-soon { display: none; }
  .contribute-card { flex-direction: column; align-items: flex-start; }
}

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