/* syntaqlite docs — base styles */

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

/* Dark theme (default) */
:root, [data-theme="dark"] {
  --bg: #1a1d1e;
  --surface: #232729;
  --fg: #d4d8d6;
  --fg-muted: #8a8f8c;
  --accent: #d4826a;
  --accent-hover: #c0715a;
  --border: #353a3c;
  --border-strong: #4a5052;
  --code-bg: #1c2021;
  --sidebar-w: 220px;
  --nav-h: 52px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SF Mono", "Fira Code", monospace;
}

/* Light theme */
[data-theme="light"] {
  --bg: #fff;
  --surface: #f3f4f6;
  --fg: #1a1a1a;
  --fg-muted: #666;
  --accent: #c0715a;
  --accent-hover: #a8614d;
  --border: #e5e7eb;
  --border-strong: #d1d5db;
  --code-bg: #f7f7f8;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
}

/* Nav */

header {
  position: sticky;
  top: 0;
  height: var(--nav-h);
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  z-index: 10;
}

header nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
}

.site-title {
  font-weight: 600;
  font-size: 1rem;
  color: var(--fg);
  text-decoration: none;
}

header nav ul {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  flex: 1;
}

header nav ul a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.9rem;
}

header nav ul a:hover { color: var(--fg); }

/* Nav icons */

.nav-icons {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  color: var(--fg-muted);
  text-decoration: none;
  border: none;
  background: none;
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
}

.nav-icon:hover {
  color: var(--fg);
  background: var(--surface);
}

.nav-icon--labeled {
  width: auto;
  gap: 0.35rem;
  padding: 0 0.5rem;
  font-size: 0.85rem;
}

/* Version switcher */

.version-switcher {
  position: relative;
}

.version-switcher__btn {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.6rem;
  font-family: var(--font);
  font-size: 0.8rem;
  color: var(--fg-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

.version-switcher__btn:hover {
  color: var(--fg);
  border-color: var(--border-strong);
}

.version-switcher__menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 120px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.25rem 0;
  z-index: 20;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.version-switcher__menu.open {
  display: block;
}

.version-switcher__menu a {
  display: block;
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 0.1s, background 0.1s;
}

.version-switcher__menu a:hover {
  color: var(--fg);
  background: var(--bg);
}

.version-switcher__menu a.active {
  color: var(--accent);
  font-weight: 500;
}

/* Theme toggle icon visibility */
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* Layout */

.layout {
  display: flex;
  max-width: 1200px;
  margin: 0 auto;
  min-height: calc(100vh - var(--nav-h));
}

aside {
  width: var(--sidebar-w);
  flex-shrink: 0;
  padding: 2rem 1rem 2rem 1.5rem;
  border-right: 1px solid var(--border);
  position: sticky;
  top: var(--nav-h);
  height: calc(100vh - var(--nav-h));
  overflow-y: auto;
}

aside h3 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
  margin-bottom: 0.75rem;
}

aside h3 a {
  color: inherit;
  text-decoration: none;
}

aside h3 a:hover { color: var(--fg); }

aside ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

aside ul a {
  display: block;
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
  font-size: 0.9rem;
  color: var(--fg-muted);
  text-decoration: none;
}

aside ul a:hover { color: var(--fg); background: var(--surface); }
aside ul a.active { color: var(--accent); font-weight: 500; }

/* Main content */

main {
  flex: 1;
  padding: 2.5rem 3rem;
  min-width: 0;
}

article h1 { font-size: 1.75rem; font-weight: 700; margin-bottom: 1.5rem; }
article h2 { font-size: 1.25rem; font-weight: 600; margin: 2rem 0 0.75rem; }
article h3 { font-size: 1rem; font-weight: 600; margin: 1.5rem 0 0.5rem; }
article p  { margin-bottom: 1rem; }
article ul, article ol { margin: 0 0 1rem 1.5rem; }
article li { margin-bottom: 0.25rem; }

article a { color: var(--accent); }
article a:hover { color: var(--accent-hover); }

article strong { color: var(--fg); }

article code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--surface);
  padding: 0.15em 0.35em;
  border-radius: 3px;
  color: var(--fg);
}

article pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 1rem 1.25rem;
  border-radius: 6px;
  overflow-x: auto;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  font-family: var(--font-mono);
}

article pre code { background: none; padding: 0; border: none; }

article table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

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

article th {
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
}

article td code {
  font-size: 0.825em;
}

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

article blockquote {
  border-left: 3px solid var(--border-strong);
  padding-left: 1rem;
  color: var(--fg-muted);
  margin-bottom: 1rem;
}

/* Home page */

.home h1 { font-size: 1.75rem; font-weight: 700; margin-bottom: 1.5rem; }
.home h2 { font-size: 1.25rem; font-weight: 600; margin: 2rem 0 0.75rem; }
.home p  { margin-bottom: 1rem; }
.home a  { color: var(--accent); text-decoration: none; }
.home a:hover { color: var(--accent-hover); }
.home strong { color: var(--fg); }
.home ul { margin: 0 0 1rem 1.5rem; }
.home li { margin-bottom: 0.5rem; }

.home code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--surface);
  padding: 0.15em 0.35em;
  border-radius: 3px;
  color: var(--fg);
}

/* Home before/after example */

.home-example {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.home-example__col {
  min-width: 0;
}

.home-example__label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
  margin-bottom: 0.4rem;
}

.home-example pre, .home-diagnostic pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 1rem 1.25rem;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.825rem;
  font-family: var(--font-mono);
  line-height: 1.5;
  margin: 0;
}

/* Home feature blocks */

.home-feature {
  margin: 0.75rem 0;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.home-feature h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.home-feature p {
  margin-bottom: 0;
}

.home-feature p + pre {
  margin-top: 1rem;
}

.home-feature pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 1rem 1.25rem;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.825rem;
  font-family: var(--font-mono);
  line-height: 1.5;
  margin: 0;
}

.home-feature ul {
  margin: 1rem 0 0 1.5rem;
  color: var(--fg-muted);
  font-size: 0.9rem;
}

.home-feature .home-example,
.home-feature .home-diagnostic {
  margin-top: 1rem;
  margin-bottom: 0;
}

.home-feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin: 0.75rem 0 2rem;
}

/* Home diagnostic example */

.home-diagnostic {
  margin: 2rem 0;
}

.home-diagnostic pre + pre {
  margin-top: 0.75rem;
}

.home-diagnostic__output {
  background: var(--code-bg);
}

.diag-error { color: #e06c60; font-weight: 600; }
.diag-warning { color: #d4a656; font-weight: 600; }
.diag-underline { color: #e06c60; }
.diag-help { color: #6ab0a3; }

.home-example__note {
  font-size: 0.825rem;
  color: var(--fg-muted);
  margin-top: 0.5rem;
}

/* Entry cards */

.entry-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.entry-card {
  display: block;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  text-decoration: none;
  color: var(--fg);
  transition: border-color 0.15s;
}

.entry-card:hover {
  border-color: var(--accent);
}

.entry-card--playground {
  grid-column: 1 / -1;
  border-color: var(--accent);
}

.entry-card--playground .entry-card__title {
  color: var(--accent);
}

.entry-card__title {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.entry-card__desc {
  display: block;
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.4;
}

/* Further reading */

.home h2:last-of-type {
  margin-top: 2.5rem;
}

/* Section overview pages */

.section-pages {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.section-page-link {
  display: block;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
  color: var(--fg);
  transition: border-color 0.15s;
}

.section-page-link:hover {
  border-color: var(--accent);
}

.section-page-link__title {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
}

.section-page-link__desc {
  display: block;
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-top: 0.15rem;
}

/* Tabs */

.tabs {
  margin-bottom: 1rem;
}

.tab-buttons {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
}

.tab-buttons button {
  font-family: var(--font);
  font-size: 0.85rem;
  padding: 0.5rem 1rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--fg-muted);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

.tab-buttons button:hover {
  color: var(--fg);
}

.tab-buttons button.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.tab-panel pre {
  border-top-left-radius: 0;
  border-top-right-radius: 0;
  margin-top: 0;
}

/* Scrollbar */

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--fg-muted); }