@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;700&family=Space+Mono:wght@400;700&display=swap');

:root {
  /* Surfaces / text */
  --bg: #0d0f14;
  --surface: #161921;
  --panel-bg: #1e2330;
  --text: #e8eaf0;
  --text-dim: #c4c9d4;
  --text-muted: #6b7280;
  /* Brand / status */
  --amber: #f0a500;
  --pink: #ff5fa2;
  --teal: #4ecdc4;
  --danger: #f87171;
  --border: rgba(255,255,255,0.12);
  /* Per-page accent (overridden on the Arena/Home pages). */
  --accent: var(--amber);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Keyboard focus ring (mouse clicks don't trigger :focus-visible). */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.eyebrow { font-family: 'Space Mono', monospace; font-size: 10px; letter-spacing: .18em; color: var(--accent); text-transform: uppercase; margin-bottom: 6px; }

/* Shared site header (shared by Charts + Arena). The <header> box itself is
   styled per-page; only the title/back-link are common. */
.site-title {
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 22px;
  color: var(--pink);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.site-title span { color: var(--text); font-weight: 400; }

.back-link {
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.06em;
  transition: color .15s ease;
}
.back-link:hover { color: var(--pink); }