/* ============================================================
   Synthetic Protocol — bioto.ai design tokens
   Shared across all landing-page directions.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Hanken+Grotesk:wght@400;500;600;700;800&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  /* --- Surfaces / depth --- */
  --void-black: #060911;
  --deep-space: #0B0E14;
  --surface: #081425;
  --surface-container-lowest: #040e1f;
  --surface-container-low: #111c2d;
  --surface-container: #152031;
  --surface-container-high: #1f2a3c;
  --surface-container-highest: #2a3548;
  --slate-surface: #1E293B;

  /* --- Text --- */
  --on-surface: #d8e3fb;
  --on-surface-variant: #9fb0c4;
  --terminal-text: #A1A1AA;
  --outline: #859399;
  --outline-variant: #2b3949;

  /* --- Accents --- */
  --plasma-blue: #00D1FF;
  --plasma-blue-dim: #4cd6ff;
  --primary: #a4e6ff;
  --on-primary: #003543;
  --cyber-purple: #8A2BE2;
  --secondary: #dcb8ff;
  --secondary-container: #7701d0;
  --signal-pink: #E91E63;
  --tertiary: #ffd0d6;

  /* --- Radii --- */
  --r-sm: 0.125rem;
  --r: 0.25rem;
  --r-md: 0.375rem;
  --r-lg: 0.5rem;
  --r-xl: 0.75rem;
  --r-full: 9999px;

  /* --- Rhythm --- */
  --base: 8px;
  --gutter: 24px;
  --margin-desktop: 64px;
  --max-width: 1280px;

  /* --- Fonts --- */
  --font-head: 'Hanken Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* --- Signature gradients --- */
  --grad-plasma: linear-gradient(120deg, var(--plasma-blue) 0%, var(--secondary) 55%, var(--cyber-purple) 100%);
  --grad-text: linear-gradient(100deg, #ffffff 0%, var(--plasma-blue) 38%, var(--secondary) 78%);
  --glow-blue: 0 0 24px -2px rgba(0, 209, 255, 0.45);
  --glow-purple: 0 0 28px -2px rgba(138, 43, 226, 0.4);
}

* { box-sizing: border-box; }

html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--on-surface);
  background: var(--deep-space);
}

::selection { background: rgba(0, 209, 255, 0.28); color: #fff; }

/* --- Type helpers --- */
.mono { font-family: var(--font-mono); }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--plasma-blue);
}

/* --- Reusable surfaces --- */
.glass {
  background: linear-gradient(160deg, rgba(30, 41, 59, 0.55), rgba(8, 20, 37, 0.35));
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 16px;
  border-radius: var(--r);
  padding: 14px 26px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform .18s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
}
.btn svg { transition: transform .2s ease; }
.btn:hover svg { transform: translateX(4px); }

.btn-primary {
  background: var(--plasma-blue);
  color: #00222c;
  box-shadow: var(--glow-blue);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 34px -2px rgba(0, 209, 255, 0.7); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  color: var(--on-surface);
  border-color: rgba(0, 209, 255, 0.3);
}
.btn-ghost:hover { border-color: var(--plasma-blue); background: rgba(0, 209, 255, 0.07); transform: translateY(-2px); }

/* --- Status dot --- */
.dot {
  width: 7px; height: 7px; border-radius: var(--r-full);
  background: var(--plasma-blue);
  box-shadow: 0 0 8px 1px var(--plasma-blue);
  display: inline-block;
}

/* --- Code syntax helpers --- */
.tok-key { color: var(--plasma-blue); }
.tok-str { color: #7ee787; }
.tok-num { color: var(--secondary); }
.tok-punct { color: var(--on-surface-variant); }
.tok-comment { color: #5a6b7d; font-style: italic; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}