/* ============================================================
   Zareph Core — design tokens
   Palette, type, and layout constants shared across the site.
   Space Grotesk (display) + IBM Plex Sans (body) + IBM Plex Mono
   (labels/eyebrows), single signal-green accent, no gradients.
   ============================================================ */

:root {
  /* Color */
  --bg-void: #05070A;
  --bg-void-2: #0B0F14;
  --bg-card: #0E1319;
  --border-soft: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.18);

  --text-primary: #F2F4F1;
  --text-secondary: #A9B4AE;
  --text-muted: #6B776F;

  --accent: #2FD98A;
  --accent-strong: #1DBE74;

  /* Type */
  --font-display: 'Space Grotesk', 'IBM Plex Sans', sans-serif;
  --font-body: 'IBM Plex Sans', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  /* Layout */
  --radius-lg: 18px;
  --radius-md: 12px;
  --max-width: 1200px;
}

body {
  background: var(--bg-void);
  color: var(--text-primary);
  font-family: var(--font-body);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

/* Buttons — solid accent, no gradient fills */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--accent);
  color: #04140F;
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  background: var(--accent-strong);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.06);
  transform: translateY(-1px);
}

@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
  .btn-primary:hover,
  .btn-outline:hover { transform: none; }
}