/* QuantMind Documentation Style */

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f6f8fa;
  --bg-sidebar: #f6f8fa;
  --text-primary: #24292f;
  --text-secondary: #57606a;
  --text-muted: #8c959f;
  --border-color: #d0d7de;
  --accent-color: #0969da;
  --accent-hover: #0550ae;
  --code-bg: #f6f8fa;
  --sidebar-width: 260px;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
}

/* Layout */
.layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.sidebar-logo img {
  width: 32px;
  height: 32px;
}

.sidebar-logo-text {
  font-size: 18px;
  font-weight: 600;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 0;
}

.nav-section {
  margin-bottom: 8px;
}

.nav-section-title {
  padding: 8px 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: all 0.15s ease;
  border-left: 3px solid transparent;
}

.nav-link:hover {
  color: var(--text-primary);
  background-color: var(--bg-primary);
}

.nav-link.active {
  color: var(--accent-color);
  background-color: var(--bg-primary);
  border-left-color: var(--accent-color);
  font-weight: 500;
}

.nav-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
}

.github-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background-color: var(--text-primary);
  color: #ffffff;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  transition: background-color 0.15s ease;
}

.github-link:hover {
  background-color: var(--accent-hover);
}

.github-link svg {
  width: 16px;
  height: 16px;
}

/* Main Content */
.main {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-width: 0;
}

.content {
  max-width: 900px;
  margin: 0 auto;
  padding: 48px 40px;
}

/* Typography */
.page-header {
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
}

.page-title {
  font-size: 32px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.page-description {
  font-size: 16px;
  color: var(--text-secondary);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.25;
}

h1 { font-size: 32px; margin-bottom: 16px; }
h2 { font-size: 24px; margin-top: 40px; margin-bottom: 16px; }
h3 { font-size: 20px; margin-top: 32px; margin-bottom: 12px; }
h4 { font-size: 16px; margin-top: 24px; margin-bottom: 8px; }

p {
  margin-bottom: 16px;
  color: var(--text-secondary);
}

a {
  color: var(--accent-color);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Lists */
ul, ol {
  margin-bottom: 16px;
  padding-left: 24px;
  color: var(--text-secondary);
}

li {
  margin-bottom: 8px;
}

/* Code */
code {
  font-family: "SF Mono", Monaco, "Cascadia Code", Consolas, monospace;
  font-size: 0.875em;
  background-color: var(--code-bg);
  padding: 0.2em 0.4em;
  border-radius: 4px;
}

pre {
  background-color: var(--code-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  margin-bottom: 16px;
}

pre code {
  background: none;
  padding: 0;
  font-size: 13px;
  line-height: 1.5;
}

/* Code Block with Language */
.code-block {
  position: relative;
  margin-bottom: 16px;
}

.code-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  font-size: 12px;
  color: var(--text-muted);
}

.code-block pre {
  border-radius: 0 0 8px 8px;
  margin-bottom: 0;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
}

th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  background-color: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-primary);
}

td {
  color: var(--text-secondary);
}

/* Cards */
.card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.card-text {
  color: var(--text-secondary);
  font-size: 14px;
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin: 24px 0;
}

.feature-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 24px;
}

.feature-icon {
  width: 40px;
  height: 40px;
  background-color: var(--bg-secondary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.feature-icon svg {
  width: 20px;
  height: 20px;
  color: var(--accent-color);
}

.feature-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 14px;
  color: var(--text-secondary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--accent-color);
  color: #ffffff;
  border: none;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  text-decoration: none;
}

.btn-secondary {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--border-color);
  text-decoration: none;
}

/* Badge */
.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 4px;
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
}

.badge-primary {
  background-color: #ddf4ff;
  color: var(--accent-color);
}

.badge-success {
  background-color: #dafbe1;
  color: #1a7f37;
}

/* Alert */
.alert {
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 16px;
}

.alert-info {
  background-color: #ddf4ff;
  border: 1px solid #54aeff;
}

.alert-warning {
  background-color: #fff8c5;
  border: 1px solid #d29922;
}

.alert-title {
  font-weight: 600;
  margin-bottom: 4px;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 48px 0;
  margin-bottom: 40px;
}

.hero-title {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 24px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Section */
.section {
  margin-bottom: 48px;
}

.section-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
}

/* Steps */
.steps {
  counter-reset: step;
}

.step {
  position: relative;
  padding-left: 48px;
  padding-bottom: 32px;
  border-left: 2px solid var(--border-color);
  margin-left: 16px;
}

.step:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: -17px;
  top: 0;
  width: 32px;
  height: 32px;
  background-color: var(--accent-color);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
}

.step-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-content {
  color: var(--text-secondary);
  font-size: 14px;
}

/* Mobile Menu */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  z-index: 200;
  padding: 0 16px;
  align-items: center;
  justify-content: space-between;
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
}

.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
}

.mobile-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.mobile-logo img {
  width: 24px;
  height: 24px;
}

.overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 150;
}

/* Responsive */
@media (max-width: 1023px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main {
    margin-left: 0;
  }

  .mobile-header {
    display: flex;
  }

  .content {
    padding: 72px 20px 40px;
  }

  .overlay.open {
    display: block;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 28px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Utility */
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }