:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --surface-hover: #243044;
  --border: #2d3a4d;
  --text: #e7ecf3;
  --muted: #8b9cb3;
  --accent: #5b9fd4;
  --accent-dim: #3d7aad;
  --code-bg: #121a24;
  --radius: 10px;
  --font-sans: "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "Cascadia Code", "Fira Code", Consolas, monospace;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.wiki-layout {
  display: grid;
  grid-template-columns: minmax(220px, 280px) 1fr;
  min-height: 100vh;
}

@media (max-width: 768px) {
  .wiki-layout {
    grid-template-columns: 1fr;
  }

  .wiki-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
}

.wiki-sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.wiki-brand {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius);
}

.wiki-brand:hover {
  background: var(--surface-hover);
}

.wiki-portal-btn {
  display: block;
  width: 100%;
  text-align: center;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--accent-dim);
  background: rgba(91, 159, 212, 0.12);
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.wiki-portal-btn:hover {
  background: rgba(91, 159, 212, 0.22);
  border-color: var(--accent);
  color: #7eb8e8;
}

.wiki-search {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 0.9rem;
}

.wiki-search::placeholder {
  color: var(--muted);
}

.wiki-search:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(91, 159, 212, 0.25);
}

.wiki-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.wiki-nav a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius);
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: background 0.15s, color 0.15s;
}

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

.wiki-nav a.active {
  background: rgba(91, 159, 212, 0.15);
  color: var(--accent);
  font-weight: 600;
}

.wiki-nav .nav-icon {
  font-size: 0.85rem;
  opacity: 0.85;
}

.wiki-main {
  padding: 2rem clamp(1.25rem, 4vw, 3rem);
  max-width: 52rem;
}

.wiki-article {
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.wiki-article h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  line-height: 1.25;
}

.wiki-article h2 {
  font-size: 1.35rem;
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--border);
}

.wiki-article h3 {
  font-size: 1.1rem;
  margin: 1.5rem 0 0.5rem;
}

.wiki-article p {
  margin: 0 0 1rem;
  color: #c8d4e0;
}

.wiki-article a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.wiki-article a:hover {
  color: #7eb8e8;
}

.wiki-article ul,
.wiki-article ol {
  margin: 0 0 1rem;
  padding-left: 1.35rem;
  color: #c8d4e0;
}

.wiki-article li {
  margin-bottom: 0.35rem;
}

.wiki-article blockquote {
  margin: 1rem 0;
  padding: 0.75rem 1rem;
  border-left: 4px solid var(--accent-dim);
  background: var(--surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--muted);
}

.wiki-article code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--code-bg);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.wiki-article pre {
  margin: 1rem 0;
  padding: 1rem 1.15rem;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
}

.wiki-article pre code {
  border: none;
  padding: 0;
  background: none;
  font-size: 0.85rem;
  line-height: 1.5;
}

.wiki-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.95rem;
}

.wiki-article th,
.wiki-article td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.75rem;
  text-align: left;
}

.wiki-article th {
  background: var(--surface);
  color: var(--text);
}

.wiki-article hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

.wiki-error,
.wiki-loading {
  padding: 1.5rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
}

.wiki-error {
  border-color: #8b4d5c;
  color: #e8a4b0;
}