/* ── Design Tokens ──────────────────────────────────── */

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #242736;
  --border: #2e3247;
  --text: #e1e4ed;
  --text-dim: #8b8fa7;
  --accent: #6c8cff;
  --accent-dim: #4a5e99;
  --green: #4ade80;
  --yellow: #facc15;
  --orange: #fb923c;
  --red: #f87171;
  --radius: 8px;
  --font-mono: 'SF Mono', 'Fira Code', 'JetBrains Mono', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ── Reset ──────────────────────────────────────────── */

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

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ── Navigation ─────────────────────────────────────── */

.site-nav {
  padding: 14px 32px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--bg);
}

.site-nav-left {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav-logo {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--text);
}

.site-nav-logo span { color: var(--accent); }

.site-nav-links {
  display: flex;
  gap: 4px;
}

.site-nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  padding: 6px 12px;
  border-radius: var(--radius);
  transition: color 0.15s, background 0.15s;
}

.site-nav-links a:hover {
  color: var(--text);
  background: var(--surface);
}

.site-nav-links a.active {
  color: var(--accent);
  background: rgba(108, 140, 255, 0.1);
}

.site-nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-nav-user {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text);
}

.site-nav-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
}

.site-nav-btn {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 14px;
  font-size: 13px;
  font-family: var(--font-sans);
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.15s, background 0.15s;
}

.site-nav-btn:hover {
  border-color: var(--accent-dim);
  background: var(--surface2);
}

.site-nav-btn.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.site-nav-btn.primary:hover {
  background: #5a7ae6;
  border-color: #5a7ae6;
}

/* ── Offline Banner ─────────────────────────────────── */

.offline-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--orange);
  color: #1a1d27;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
}

.offline-banner span {
  font-weight: 400;
  opacity: 0.8;
}

/* ── Shared Utilities ───────────────────────────────── */

.label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

/* ── Responsive: Tablet ───────────────────────────────── */

@media (max-width: 768px) {
  .site-nav {
    padding: 12px 16px;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
  }

  .site-nav-left {
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: 100%;
  }

  .site-nav-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 2px;
  }

  .site-nav-links a {
    font-size: 13px;
    padding: 5px 10px;
  }

  .site-nav-right {
    width: 100%;
    justify-content: center;
  }
}

/* ── Responsive: Small Phone ──────────────────────────── */

@media (max-width: 480px) {
  .site-nav {
    padding: 10px 12px;
    gap: 6px;
  }

  .site-nav-logo {
    font-size: 16px;
  }

  .site-nav-links a {
    font-size: 12px;
    padding: 4px 8px;
  }

  .site-nav-btn {
    padding: 5px 10px;
    font-size: 12px;
  }

  .site-nav-user {
    font-size: 13px;
  }
}