/* Retard — pure black applied AI company surface
   Tokens only; no neon cyan, no multi-color gradients. */

:root {
  --bg: #000000;
  --bg-elevated: #0a0a0a;
  --bg-panel: #0d0d0d;
  --border: #1a1a1a;
  --border-strong: #2a2a2a;
  --text: #f2f2f0;
  --text-muted: #8a8a86;
  --text-dim: #5c5c58;
  --accent: #e8e4dc;
  --accent-soft: rgba(232, 228, 220, 0.08);
  --ok: #8fbf8a;
  --status: #c4b89a;
  --danger: #c47a7a;
  --radius: 10px;
  --radius-sm: 6px;
  --wrap: 1120px;
  --header-h: 64px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
}
em { font-style: italic; color: var(--accent); }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #000;
  padding: 0.5rem 1rem;
  z-index: 100;
}
.skip:focus { left: 1rem; top: 1rem; }

.wrap {
  width: min(100% - 2.5rem, var(--wrap));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  background: rgba(0, 0, 0, 0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-row {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.mark {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  font-size: 0.82rem;
}

.mark-glyph {
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--accent);
  border-radius: 3px;
  position: relative;
  flex-shrink: 0;
}
.mark-glyph::after {
  content: "";
  position: absolute;
  inset: 3px;
  background: var(--accent);
  opacity: 0.9;
}
.mark-glyph.sm {
  width: 12px;
  height: 12px;
  border-width: 1px;
}
.mark-glyph.sm::after { inset: 2px; }

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.nav a:hover { color: var(--text); }
.nav-cta {
  color: var(--bg) !important;
  background: var(--accent);
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.85rem;
}
.nav-cta:hover { filter: brightness(1.05); }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  place-items: center;
  gap: 5px;
  flex-direction: column;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--text);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem 1.25rem 1.25rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.mobile-nav a {
  padding: 0.7rem 0.5rem;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
}
.mobile-nav a:hover {
  color: var(--text);
  background: var(--bg-elevated);
}
.mobile-nav:not([hidden]) { display: flex; }

/* Hero */
.hero {
  padding: 5.5rem 0 4.5rem;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse 80% 50% at 70% 0%, rgba(232, 228, 220, 0.04), transparent 55%),
    var(--bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 1rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.6rem, 5.5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  font-weight: 700;
}

.lede,
.section-lede {
  margin: 0;
  max-width: 38rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.75rem 0 2.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 44px;
  padding: 0.65rem 1.15rem;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.92rem;
  cursor: pointer;
  transition: background 0.15s var(--ease), border-color 0.15s var(--ease), color 0.15s var(--ease);
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: #000;
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-ghost {
  border-color: var(--border-strong);
  color: var(--text);
  background: transparent;
}
.btn-ghost:hover {
  border-color: var(--text-dim);
  background: var(--accent-soft);
}
.btn-block { width: 100%; }

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  max-width: 28rem;
}
.stat-row dt {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  font-family: var(--mono);
  margin-bottom: 0.25rem;
}
.stat-row dd {
  margin: 0;
  font-weight: 500;
  font-size: 0.95rem;
}

.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--status);
  margin-right: 0.4rem;
  vertical-align: middle;
  box-shadow: 0 0 0 3px rgba(196, 184, 154, 0.15);
}

/* Terminal panel */
.panel-frame {
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.panel-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.panel-live {
  color: var(--ok);
}

.terminal {
  padding: 1.25rem 1.15rem 1.5rem;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.7;
  min-height: 220px;
}

.term-line { color: var(--text); }
.term-line.dim { color: var(--text-dim); }
.term-line.ok { color: var(--ok); }

.term-cursor {
  display: inline-block;
  width: 8px;
  height: 1em;
  margin-top: 0.35rem;
  background: var(--accent);
  opacity: 0.75;
  animation: blink 1.1s steps(1) infinite;
  vertical-align: text-bottom;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* Sections */
.section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border);
}
.section.alt { background: var(--bg-elevated); }

.section-head {
  margin-bottom: 2.5rem;
  max-width: 40rem;
}
.section-head h2 {
  margin: 0 0 0.85rem;
  font-size: clamp(1.7rem, 3vw, 2.25rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.section-head .section-lede { margin-top: 0.5rem; }

.card-grid {
  display: grid;
  gap: 1rem;
}
.card-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.4rem;
}
.section.alt .card { background: var(--bg-panel); }

.card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
}
.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.card.paper .meta {
  margin: 0 0 0.65rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.link-quiet {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  font-family: var(--mono);
}

.feature-band {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.75rem;
}
.feature-copy h3 {
  margin: 0 0 0.65rem;
  font-size: 1.15rem;
}
.feature-copy p {
  margin: 0 0 1rem;
  color: var(--text-muted);
}

.check-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}
.check-list li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--text-muted);
  font-size: 0.93rem;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.7;
}

.feature-stats {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}
.metric {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  background: var(--bg);
}
.metric-val {
  display: block;
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: 0.2rem;
}
.metric-label {
  display: block;
  color: var(--text-dim);
  font-size: 0.82rem;
  line-height: 1.35;
}

/* Principles */
.principles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.principles li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.25rem 1.3rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-panel);
}
.p-num {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  padding-top: 0.2rem;
}
.principles h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}
.principles p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Company */
.company-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.company-block {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.3rem;
  background: var(--bg-panel);
}
.company-block h3 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
}
.company-block p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.careers-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.4rem 1.5rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--bg);
}
.careers-band h3 { margin: 0 0 0.35rem; }
.careers-band p {
  margin: 0;
  color: var(--text-muted);
  max-width: 36rem;
  font-size: 0.95rem;
}

/* Access */
.access {
  background:
    radial-gradient(ellipse 70% 60% at 50% 100%, rgba(232, 228, 220, 0.035), transparent 60%),
    var(--bg);
}
.access-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.access-form {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  background: var(--bg-panel);
}
.access-form label {
  display: grid;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.access-form label.check {
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.65rem;
  cursor: pointer;
}
.access-form input[type="email"],
.access-form textarea {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  outline: none;
  resize: vertical;
}
.access-form input:focus,
.access-form textarea:focus {
  border-color: var(--text-dim);
}
.access-form input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  border: 1px solid var(--border-strong);
}
.form-note {
  margin: 0;
  min-height: 1.25rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}
.form-note.ok { color: var(--ok); }
.form-note.err { color: var(--danger); }

/* Footer */
.site-footer {
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--border);
}
.footer-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1.5rem;
  align-items: center;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.25rem;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--text-dim);
}
.footer-nav a:hover { color: var(--text); }
.footer-meta {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: var(--mono);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  max-width: min(90vw, 360px);
  padding: 0.75rem 1rem;
  border-radius: 999px;
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-size: 0.88rem;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}
.toast[hidden] { display: none; }

/* Privacy page */
.legal {
  max-width: 42rem;
  padding: 4rem 0 5rem;
}
.legal h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
  letter-spacing: -0.03em;
}
.legal .meta {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}
.legal h2 {
  margin: 2rem 0 0.65rem;
  font-size: 1.1rem;
}
.legal p, .legal li {
  color: var(--text-muted);
  font-size: 0.95rem;
}
.legal ul { padding-left: 1.2rem; }

/* Responsive */
@media (max-width: 920px) {
  .hero-grid,
  .feature-band,
  .access-grid,
  .footer-row {
    grid-template-columns: 1fr;
  }
  .card-grid.three,
  .card-grid.two,
  .principles,
  .company-grid {
    grid-template-columns: 1fr;
  }
  .nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .footer-nav { justify-content: flex-start; }
  .careers-band {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero { padding-top: 3.5rem; }
}

@media (max-width: 520px) {
  .stat-row { grid-template-columns: 1fr; gap: 0.75rem; }
  .wrap { width: min(100% - 1.5rem, var(--wrap)); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .term-cursor { animation: none; }
  *, *::before, *::after {
    transition: none !important;
    animation-duration: 0.01ms !important;
  }
}