:root {
  color-scheme: dark;
  --bg: #0f141c;
  --surface: #161b22;
  --surface-strong: #0f141c;
  --text: #c9d1d9;
  --text-muted: #8b949e;
  --border: #30363d;
  --primary: #00ff66;
  --primary-soft: rgba(0, 255, 102, 0.08);
  --accent: #00ff66;
  --danger: #ff3333;
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-strong: #f8fafc;
  --text: #1f2428;
  --text-muted: #626a73;
  --border: #d1d5da;
  --primary: #059669;
  --primary-soft: rgba(5, 150, 105, 0.08);
  --danger: #d73a49;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Fira Code", monospace;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.brand-icon {
  background: var(--primary);
  color: #000;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 3px;
  font-size: 0.8rem;
}

.brand-title {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 8px;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  padding: 6px 14px;
  font-size: 0.9rem;
  border-radius: 3px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.nav-link:hover {
  color: var(--text);
  background: var(--surface-strong);
}

.nav-link.active {
  color: var(--primary);
  border-color: var(--primary);
  background: var(--primary-soft);
}

.theme-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
}

.content-viewport {
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}

.static-container {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 32px;
  border-radius: 4px;
  max-width: 800px;
  margin: 40px auto;
}

.static-container h2 {
  margin-top: 0;
  font-size: 1.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
}

.static-container p {
  color: var(--text-muted);
  line-height: 1.6;
}

.btn {
  font-family: "Fira Code", monospace;
  padding: 10px 20px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.9rem;
  border: none;
  transition: opacity 0.2s;
}

.btn-primary {
  background: var(--primary);
  color: #000;
}

.btn:hover {
  opacity: 0.9;
}