@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,100..800;1,100..800&display=swap');

/* ── CSS variables ── */
:root {
  --bg: #1a1a2e;
  --accent: #e94560;
  --text: #ccc;
  --text-muted: #888;
  --text-dim: #aaa;
  --nav-bg: #1a1a2e;
  --nav-border: #e94560;
  --hover-fg: #fff;
}

[data-theme="light"] {
  --bg: #fdf6e3;
  --accent: #2aa198;
  --text: #586e75;
  --text-muted: #839496;
  --text-dim: #93a1a1;
  --nav-bg: #f5efe0;
  --nav-border: #2aa198;
  --hover-fg: #073642;
}

/* ── Main nav ── */
.sitenav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  gap: 24px;
}

.sitenav-brand {
  color: var(--accent);
  text-decoration: none;
  font-weight: bold;
  white-space: nowrap;
}

.sitenav-links {
  display: flex;
  flex: 1;
  gap: 20px;
  align-items: center;
}

.sitenav-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.sitenav-links a:hover,
.sitenav-links a.active {
  color: var(--accent);
}

.sitenav a {
  transition: color 0.15s ease;
}

.sitenav a:hover {
  color: var(--hover-fg);
}

/* ── Auth links (kept for legacy compat, now unused in main nav) ── */
.sitenav-links-auth {
  display: flex;
  gap: 20px;
  align-items: center;
  margin-left: auto;
}

.sitenav-links-auth a {
  color: var(--text-muted);
  text-decoration: none;
  opacity: 0.6;
  transition: color 0.15s ease, opacity 0.15s ease;
}

.sitenav-links-auth a:hover {
  color: var(--accent);
  opacity: 1;
}

/* ── Theme toggle ── */
.theme-toggle {
  background: none;
  border: 1px solid var(--nav-border);
  color: var(--text-muted);
  border-radius: 4px;
  padding: 2px 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
  line-height: 1.4;
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ── Nav separator and tool links ── */
.sitenav-sep {
  color: var(--text-muted);
  opacity: 0.4;
  padding: 0 4px;
  user-select: none;
}

.sitenav-tool-link {
  opacity: 0.6;
}

.sitenav-tool-link:hover {
  opacity: 1;
}

/* ── Mobile responsive ── */
@media (max-width: 768px) {
  .sitenav {
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px 12px;
  }

  .sitenav-brand {
    flex: 0 0 auto;
  }

  .sitenav-links {
    flex: 0 0 100%;
    flex-wrap: wrap;
    gap: 8px 14px;
    order: 3;
  }

  .sitenav-links-auth {
    flex: 0 0 100%;
    display: flex;
    gap: 12px;
    order: 4;
  }

  .theme-toggle {
    margin-left: auto;
  }
}