/* llm-style.css — тема для гайда по тестированию LLM */
:root {
  --bg: #f0f4f8;
  --text: #0f172a;
  --accent: #0891b2;
  --accent-dark: #0e7490;
  --accent-light: #cffafe;
  --card-bg: #ffffff;
  --border: #cbd5e1;
  --sidebar-bg: #ffffff;
  --header-bg: linear-gradient(135deg, #0891b2, #06b6d4);
  --header-text: #ffffff;
  --code-bg: #1e293b;
  --code-text: #e2e8f0;
  --hover: #e0f2fe;
  --footer-bg: #0f172a;
  --footer-text: #94a3b8;
  --info-bg: #cffafe;
  --warn-bg: #fef3c7;
  --warn-border: #f59e0b;
  --success-bg: #dcfce7;
  --success-border: #22c55e;
  --danger-bg: #fee2e2;
  --danger-border: #ef4444;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  font-size: 16px;
}

.wrapper {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
header {
  background: var(--header-bg);
  color: var(--header-text);
  padding: 32px 40px;
  border-radius: 16px;
  margin-bottom: 24px;
}
header h1 { font-size: 30px; font-weight: 700; }
header h1 a { color: #fff; text-decoration: none; }
header .subtitle {
  opacity: 0.9;
  margin-top: 8px;
  font-size: 16px;
  max-width: 700px;
}
header .meta {
  margin-top: 12px;
  font-size: 13px;
  opacity: 0.75;
}

/* Layout */
.layout {
  display: flex;
  gap: 24px;
  flex: 1;
}

/* Sidebar TOC */
.sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--sidebar-bg);
  border-radius: 12px;
  padding: 20px 0;
  border: 1px solid var(--border);
  height: fit-content;
  position: sticky;
  top: 20px;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
}
.sidebar h3 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
  padding: 0 20px 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}
.sidebar ul { list-style: none; }
.sidebar li a {
  display: block;
  padding: 6px 20px;
  color: var(--text);
  text-decoration: none;
  font-size: 13px;
  transition: background 0.2s;
  border-left: 3px solid transparent;
  line-height: 1.4;
}
.sidebar li a:hover,
.sidebar li a.active {
  background: var(--hover);
  border-left-color: var(--accent);
  color: var(--accent);
}
.sidebar .toc-h2 { font-weight: 600; padding-top: 8px; padding-bottom: 4px; }
.sidebar .toc-h3 { padding-left: 34px; font-size: 12.5px; }

/* Main content */
main {
  flex: 1;
  min-width: 0;
  background: var(--card-bg);
  border-radius: 12px;
  padding: 40px;
  border: 1px solid var(--border);
}

main h2 {
  font-size: 26px;
  color: var(--accent-dark);
  margin: 40px 0 16px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--accent-light);
  scroll-margin-top: 24px;
}
main h2:first-child { margin-top: 0; }

main h3 {
  font-size: 20px;
  color: var(--text);
  margin: 28px 0 12px;
  scroll-margin-top: 24px;
}
main h4 {
  font-size: 17px;
  color: var(--accent-dark);
  margin: 22px 0 10px;
}
main h5 {
  font-size: 15px;
  color: var(--text);
  margin: 18px 0 8px;
  font-weight: 600;
}
main p { margin: 12px 0; }
main ul, main ol { margin: 10px 0 10px 28px; }
main li { margin: 5px 0; line-height: 1.6; }
main li > ul, main li > ol { margin: 4px 0 4px 24px; }

/* Code */
code {
  background: var(--code-bg);
  color: var(--code-text);
  padding: 3px 8px;
  border-radius: 5px;
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.87em;
}
pre {
  background: var(--code-bg);
  color: var(--code-text);
  padding: 18px 22px;
  border-radius: 10px;
  overflow-x: auto;
  margin: 14px 0;
  border: 1px solid #334155;
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 14px;
  line-height: 1.6;
}
pre code { background: none; padding: 0; color: inherit; }

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 14px;
}
th, td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
  vertical-align: top;
}
th { background: var(--accent-light); font-weight: 600; color: var(--accent-dark); }
tr:nth-child(even) { background: #f8fafc; }

/* Info/Warning/Success/Danger boxes */
.info-box, .warn-box, .success-box, .danger-box {
  padding: 14px 18px;
  border-radius: 0 10px 10px 0;
  margin: 14px 0;
  font-size: 14px;
}
.info-box {
  background: var(--info-bg);
  border-left: 5px solid var(--accent);
}
.warn-box {
  background: var(--warn-bg);
  border-left: 5px solid var(--warn-border);
}
.success-box {
  background: var(--success-bg);
  border-left: 5px solid var(--success-border);
}
.danger-box {
  background: var(--danger-bg);
  border-left: 5px solid var(--danger-border);
}

/* Tag badges */
.tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin: 2px 4px 2px 0;
}
.tag-blue { background: #dbeafe; color: #1d4ed8; }
.tag-green { background: #dcfce7; color: #16a34a; }
.tag-red { background: #fee2e2; color: #dc2626; }
.tag-yellow { background: #fef3c7; color: #d97706; }
.tag-purple { background: #f3e8ff; color: #9333ea; }

/* Footer */
footer {
  margin-top: 24px;
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 18px 28px;
  border-radius: 12px;
  text-align: center;
  font-size: 13px;
}

/* Responsive */
/* ===== HAMBURGER MENU BUTTON ===== */
.menu-toggle {
  display: none;
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 8px;
  cursor: pointer;
  z-index: 101;
  padding: 0;
  align-items: center;
  justify-content: center;
}
.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  position: relative;
  transition: 0.3s;
}
.menu-toggle span::before,
.menu-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
}
.menu-toggle span::before { top: -6px; }
.menu-toggle span::after { top: 6px; }

/* ===== SIDEBAR CLOSE BUTTON ===== */
.sidebar-close {
  display: none;
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 28px;
  cursor: pointer;
  line-height: 1;
  border-radius: 6px;
  z-index: 102;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.sidebar-close:hover { background: var(--hover); }

/* ===== SIDEBAR OVERLAY ===== */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.5);
  z-index: 98;
  opacity: 0;
  transition: opacity 0.3s;
}
.sidebar-overlay.active {
  opacity: 1;
}

@media (max-width: 900px) {
  .menu-toggle { display: flex; }
  .sidebar-close { display: flex; }
  .sidebar-overlay { display: block; pointer-events: none; }
  .sidebar-overlay.active { pointer-events: auto; }

  header { position: relative; padding-right: 64px; }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 300px;
    max-width: 80vw;
    height: 100vh;
    max-height: 100vh;
    z-index: 99;
    border-radius: 0 16px 16px 0;
    border: none;
    border-right: 1px solid var(--border);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    padding-top: 48px;
  }
  .sidebar.active { transform: translateX(0); }
  .sidebar ul { display: block; padding: 0 0 24px; }
  .sidebar li a { border-left: 3px solid transparent; padding: 8px 20px; font-size: 13px; border-radius: 0; }
  .sidebar .toc-h3 { padding-left: 34px; }
  .sidebar h3 { padding: 0 20px 12px; font-size: 13px; }

  .layout { flex-direction: column; }
  main { padding: 20px 18px; }
  header { padding: 20px 18px; }
  header h1 { font-size: 22px; }
  header .subtitle { font-size: 14px; }
  header .meta { font-size: 12px; }
  table { font-size: 12px; }
  th, td { padding: 7px 8px; }
  .info-box, .warn-box, .success-box, .danger-box { padding: 11px 14px; font-size: 13px; }
  pre { padding: 14px 16px; font-size: 13px; }
  .formula { padding: 16px 18px; font-size: 16px; }
  main h2 { font-size: 23px; }
  main h3 { font-size: 18px; }
  main ul, main ol { margin-left: 20px; }
}
@media (max-width: 600px) {
  .wrapper { padding: 12px; }
  main { padding: 16px; }
  main h2 { font-size: 22px; }
}

/* Cursor particle effect */
#cursor-effect {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
}
.wrapper { position: relative; z-index: 1; }

body.sidebar-open { overflow: hidden; }