/* Antithetical Labs — every value traces to DESIGN.md */

@font-face { font-family: "Archivo"; src: url("fonts/archivo-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Archivo"; src: url("fonts/archivo-500.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Archivo"; src: url("fonts/archivo-900.woff2") format("woff2"); font-weight: 900; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("fonts/jetbrainsmono-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("fonts/jetbrainsmono-700.woff2") format("woff2"); font-weight: 700; font-display: swap; }

:root {
  --font-display: "Archivo", sans-serif;
  --font-body: "Archivo", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.333rem;
  --text-xl: 1.777rem;
  --text-2xl: 2.369rem;
  --text-display: clamp(2.75rem, 8vw, 6.5rem);

  --neutral-950: oklch(0.15 0.006 34);
  --neutral-900: oklch(0.19 0.007 34);
  --neutral-600: oklch(0.34 0.008 34);
  --neutral-400: oklch(0.62 0.01 34);
  --neutral-100: oklch(0.95 0.008 34);
  --accent: oklch(0.68 0.21 34);
  --accent-hover: oklch(0.72 0.19 34);
  --on-accent: oklch(0.15 0.006 34);

  --bg: var(--neutral-950);
  --surface: var(--neutral-900);
  --border: var(--neutral-600);
  --text: var(--neutral-100);
  --text-muted: var(--neutral-400);

  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-6: 24px; --space-8: 32px; --space-12: 48px; --space-16: 64px;
  --space-24: 96px;

  --grain-opacity: 0.03;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 120ms;
  --dur-base: 250ms;
  --dur-rise: 450ms;
  --dur-entrance: 700ms;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: var(--on-accent); }

/* film grain — static texture overlay, sanctioned in DESIGN.md Imagery */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

h1, h2, h3 { text-wrap: balance; }

a { color: inherit; }
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.frame {
  max-width: 1120px;
  margin-inline: auto;
  border-inline: 1px solid var(--border);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; }

/* ---------- top bar ---------- */
.topbar {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-2) var(--space-6);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.wordmark { font-weight: 700; }
.toplink {
  display: inline-block;
  padding: var(--space-3) 0;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}
.toplink:hover { color: var(--accent); }
.toplink:active { color: var(--accent-hover); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding: var(--space-16) var(--space-6);
  border-bottom: 1px solid var(--border);
}
.display {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--text-display);
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.display em { font-style: normal; color: var(--accent); }
.line { display: block; overflow: hidden; }
.line-inner { display: block; }
.subhead {
  margin-top: var(--space-8);
  max-width: 52ch;
  font-size: var(--text-lg);
  color: var(--text-muted);
}

/* ---------- section label ---------- */
.label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border);
}

/* ---------- what we build ---------- */
.build { border-bottom: 1px solid var(--border); }
.grid { display: grid; list-style: none; }
.cell { padding: var(--space-8) var(--space-6); border-bottom: 1px solid var(--border); }
.grid .cell:last-child { border-bottom: none; }
.num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--text-muted);
}
.cell h3 { font-size: var(--text-lg); font-weight: 500; margin-top: var(--space-2); }
.cell h3 + p { margin-top: var(--space-2); color: var(--text-muted); max-width: 44ch; }

.cell-cta { background: var(--accent); color: var(--on-accent); }
.cell-cta .num, .cell-cta h3 + p { color: var(--on-accent); }
.cta {
  display: inline-block;
  margin-top: var(--space-4);
  padding: var(--space-4) var(--space-6);
  background: var(--on-accent);
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.cta:hover { background: var(--surface); }
.cta:active { transform: translateY(1px); }
.cell-cta a:focus-visible { outline-color: var(--on-accent); }

/* ---------- stance ---------- */
.stance { border-bottom: 1px solid var(--border); }
.stance ol {
  list-style: none;
  counter-reset: stance;
  padding: var(--space-16) var(--space-6) var(--space-24);
  display: grid;
  gap: var(--space-12);
}
.stance li { counter-increment: stance; }
.stance h3::before {
  content: counter(stance, decimal-leading-zero);
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
}
.stance h3 {
  font-size: var(--text-xl);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.2;
}
.stance h3 + p { margin-top: var(--space-2); color: var(--text-muted); max-width: 60ch; }

/* ---------- contact ---------- */
.contact { background: var(--surface); }
.contact-inner { padding: var(--space-24) var(--space-6); }
.contact h2 {
  font-size: var(--text-2xl);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.2;
  max-width: 24ch;
}
.cta-big {
  display: inline-block;
  margin-top: var(--space-8);
  padding: var(--space-4) var(--space-8);
  background: var(--accent);
  color: var(--on-accent);
  font-size: var(--text-lg);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.cta-big:hover { background: var(--accent-hover); }
.cta-big:active { transform: translateY(1px); }
.contact-email {
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* ---------- footer ---------- */
footer {
  border-top: 1px solid var(--border);
  padding: var(--space-4) var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
}
footer a {
  display: inline-block;
  padding: var(--space-4) 0;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--dur-fast) var(--ease-out);
}
footer a:hover { color: var(--accent); }
footer a:active { color: var(--accent-hover); }

/* ---------- desktop ---------- */
@media (min-width: 768px) {
  .hero { padding: var(--space-24) var(--space-6); }
  .grid { grid-template-columns: 1fr 1fr; }
  .cell:nth-child(odd) { border-right: 1px solid var(--border); }
  .cell:nth-child(3) { border-bottom: none; }
}
@media (max-width: 767px) {
  .frame { border-inline: none; }
}

/* ---------- animation (only when html.anim is set by main.js) ---------- */
@keyframes draw { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes lift { from { transform: translateY(110%); } to { transform: translateY(0); } }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

html.anim .topbar { border-bottom-color: transparent; }
html.anim .topbar::after,
html.anim .hero::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 1px;
  background: var(--border);
  transform-origin: left;
  animation: draw 600ms var(--ease-out) both;
}
html.anim .hero { border-bottom-color: transparent; }
html.anim .hero::after { animation-delay: 150ms; }

html.anim .line-inner { animation: lift var(--dur-entrance) var(--ease-out) 100ms both; }
html.anim .line:nth-child(2) .line-inner { animation-delay: 180ms; }
html.anim .subhead { animation: rise var(--dur-entrance) var(--ease-out) 200ms both; }

html.anim .cell { animation: rise var(--dur-rise) var(--ease-out) both; }
html.anim .cell:nth-child(1) { animation-delay: 240ms; }
html.anim .cell:nth-child(2) { animation-delay: 320ms; }
html.anim .cell:nth-child(3) { animation-delay: 400ms; }
html.anim .cell:nth-child(4) { animation-delay: 440ms; }

html.anim [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--dur-entrance) var(--ease-out), transform var(--dur-entrance) var(--ease-out);
}
html.anim [data-reveal].in { opacity: 1; transform: none; }
html.anim .stance li:nth-child(2) { transition-delay: 80ms; }
html.anim .stance li:nth-child(3) { transition-delay: 160ms; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}