@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  /* Dark Theme Variables (Default) */
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #1c2128;
  --bg-card: rgba(22, 27, 34, 0.75);
  --bg-elevated: #21262d;
  --border-color: rgba(48, 54, 61, 0.6);
  --hero-bg: radial-gradient(circle at top, rgba(28, 33, 40, 0.4) 0%, var(--bg-primary) 70%);
  
  --accent-blue: #58a6ff;
  --accent-green: #3fb950;
  --accent-purple: #bc8cff;
  --accent-orange: #f0883e;
  --accent-yellow: #e3b341;
  --accent-red: #f85149;
  
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-tertiary: #6e7681;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  
  --nav-height: 64px;
  --sidebar-width: 280px;
  
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-glow: 0 0 15px rgba(88, 166, 255, 0.15);
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

[data-theme="light"] {
  /* Light Theme Variables */
  --bg-primary: #ffffff;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f6f8fa;
  --bg-card: #ffffff;
  --bg-elevated: #ffffff;
  --border-color: rgba(208, 215, 222, 0.6);
  --hero-bg: #ffffff;
  
  --accent-blue: #0969da;
  --accent-green: #1a7f37;
  --accent-purple: #8250df;
  --accent-orange: #bc4c00;
  --accent-yellow: #9a6700;
  --accent-red: #cf222e;
  
  --text-primary: #24292f;
  --text-secondary: #57606a;
  --text-tertiary: #8c959f;
  
  --shadow-glow: 0 0 15px rgba(9, 105, 218, 0.1);
}

/* CSS Reset & Baseline */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 1.5rem);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a:hover {
  text-decoration: none;
  opacity: 0.9;
}

/* Navigation Bar */
.sf-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background-color: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-normal);
}

.sf-nav__container {
  width: 100%;
  max-width: 1280px;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sf-nav__logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.sf-nav__logo-emoji {
  font-size: 1.5rem;
  line-height: 1;
  display: inline-block;
  transform: rotate(45deg);
}

.sf-nav__logo-img {
  height: 32px;
  width: auto;
  display: block;
  background-color: var(--bg-primary); /* White in light mode, Dark in dark mode */
  border-radius: 50%;
  padding: 4px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.sf-nav__menu {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.sf-nav__link {
  color: var(--text-secondary);
  font-weight: 500;
  padding: 0.5rem 0.25rem;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.sf-nav__link:hover,
.sf-nav__link.active {
  color: var(--text-primary);
}

.sf-nav__link.active {
  border-bottom-color: var(--accent-blue);
}

.sf-nav__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.sf-theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.sf-theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
  background-color: var(--bg-elevated);
}

.sf-theme-toggle svg {
  width: 18px;
  height: 18px;
}

.sf-theme-toggle .sun-icon {
  display: none;
}

[data-theme="light"] .sf-theme-toggle .sun-icon {
  display: block;
}

[data-theme="light"] .sf-theme-toggle .moon-icon {
  display: none;
}

.sf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
}

.sf-btn--primary {
  background: linear-gradient(135deg, var(--accent-blue), #2b6cb0);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(88, 166, 255, 0.25);
}

.sf-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(88, 166, 255, 0.35);
  opacity: 1;
}

.sf-btn--secondary {
  background-color: var(--bg-elevated);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.sf-btn--secondary:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--text-secondary);
  transform: translateY(-2px);
}

.sf-nav__hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Landing Hero Section */
.sf-hero {
  position: relative;
  min-height: calc(85vh - var(--nav-height));
  margin-top: var(--nav-height);
  padding: 6rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: var(--hero-bg);
}

.sf-hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(var(--border-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
  background-size: 50px 50px;
  background-position: center;
  opacity: 0.05;
  z-index: -1;
  animation: gridFloat 25s linear infinite;
}

@keyframes gridFloat {
  0% { transform: translateY(0); }
  100% { transform: translateY(50px); }
}

.sf-hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-blue);
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
}

.sf-hero__tag-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-green);
}

.sf-hero__title {
  font-size: clamp(2.25rem, 6.5vw, 4rem);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.025em;
  max-width: 900px;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.sf-hero__title span {
  background: linear-gradient(to right, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sf-hero__subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin-bottom: 2.5rem;
}

.sf-hero__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Stats/Status Bar */
.sf-stats-bar {
  width: 100%;
  max-width: 1280px;
  margin: -3rem auto 4rem;
  padding: 0 1.5rem;
  position: relative;
  z-index: 10;
}

.sf-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
}

.sf-stat-card {
  text-align: center;
  padding: 0.75rem;
  border-right: 1px solid var(--border-color);
}

.sf-stat-card:last-child {
  border-right: none;
}

.sf-stat-card__val {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.sf-stat-card__label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.sf-stat-card__val span {
  color: var(--accent-blue);
}

/* Feature Grid */
.sf-section {
  padding: 5rem 1.5rem;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
}

.sf-section-header {
  text-align: center;
  margin-bottom: 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sf-section-header__tag {
  color: var(--accent-blue);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.sf-section-header__title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.sf-section-header__desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
}

.sf-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.sf-feature-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.sf-feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-glow);
}

.sf-feature-card__icon {
  width: 48px;
  height: 48px;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--accent-blue);
}

.sf-feature-card__icon svg {
  width: 24px;
  height: 24px;
}

.sf-feature-card__title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.sf-feature-card__desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  flex-grow: 1;
}

/* Interception Pipeline Component */
.sf-pipeline-container {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  margin-top: 2rem;
  position: relative;
  overflow-x: auto;
}

.sf-pipeline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-width: 900px;
  gap: 1rem;
}

.sf-pipeline__node {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  flex: 1;
  position: relative;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.sf-pipeline__node:hover {
  border-color: var(--accent-blue);
  box-shadow: 0 0 10px rgba(88, 166, 255, 0.1);
}

.sf-pipeline__node-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.sf-pipeline__node-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.sf-pipeline__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
}

.sf-pipeline__arrow svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.sf-pipeline__terminal {
  background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
  border-color: var(--accent-purple);
}

.sf-pipeline__terminal:hover {
  border-color: var(--accent-purple);
  box-shadow: 0 0 10px rgba(188, 140, 255, 0.15);
}

/* Code block section with tab selections */
.sf-code-block {
  background-color: #0b0e14 !important; /* Force dark background */
  color: #c9d1d9;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  font-family: var(--font-mono);
  box-shadow: var(--shadow-md);
  margin: 1.5rem 0;
}

.sf-code-block__header {
  background-color: #161b22;
  border-bottom: 1px solid rgba(48, 54, 61, 0.6);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sf-code-block__controls {
  display: flex;
  gap: 0.5rem;
}

.sf-code-block__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.sf-code-block__dot--red { background-color: #ff5f56; }
.sf-code-block__dot--yellow { background-color: #ffbd2e; }
.sf-code-block__dot--green { background-color: #27c93f; }

.sf-code-block__tabs {
  display: flex;
  gap: 0.5rem;
  margin-left: 1.5rem;
  flex-grow: 1;
}

.sf-code-block__tab {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.85rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
}

.sf-code-block__tab:hover,
.sf-code-block__tab.active {
  color: var(--text-primary);
  background-color: var(--bg-elevated);
}

.sf-code-block__btn {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  transition: all var(--transition-fast);
}

.sf-code-block__btn:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
  background-color: var(--bg-elevated);
}

.sf-code-block__btn svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.sf-code-block__body {
  padding: 1.25rem;
  margin: 0;
  overflow-x: auto;
  font-size: 0.9rem;
  line-height: 1.5;
}

.sf-code-block__pane {
  display: none;
}

.sf-code-block__pane.active {
  display: block;
}

/* Two-column Docs Layout */
.sf-docs-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  max-width: 1280px;
  width: 100%;
  margin: var(--nav-height) auto 0;
  padding: 0 1.5rem;
  gap: 2.5rem;
  align-items: start;
}

/* Sidebar navigation */
.sf-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + 1.5rem);
  height: calc(100vh - var(--nav-height) - 3rem);
  overflow-y: auto;
  padding: 1rem 0;
  border-right: 1px solid var(--border-color);
}

.sf-sidebar__section {
  margin-bottom: 1.75rem;
}

.sf-sidebar__title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
  padding: 0 0.5rem;
}

.sf-sidebar__menu {
  list-style: none;
}

.sf-sidebar__link {
  display: block;
  padding: 0.4rem 0.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  border-left: 2px solid transparent;
  transition: all var(--transition-fast);
}

.sf-sidebar__link:hover {
  color: var(--text-primary);
  border-left-color: var(--border-color);
}

.sf-sidebar__link.active {
  color: var(--accent-blue);
  font-weight: 500;
  border-left-color: var(--accent-blue);
  background-color: rgba(88, 166, 255, 0.04);
}

/* Docs Content Area */
.sf-content {
  padding: 2.5rem 0 5rem;
}

.sf-content h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.sf-content h1 + p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.sf-content h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.sf-content h3 {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 1.75rem 0 0.75rem;
}

.sf-content p {
  margin-bottom: 1.25rem;
}

.sf-content ul,
.sf-content ol {
  margin: 0 0 1.25rem 1.5rem;
}

.sf-content li {
  margin-bottom: 0.5rem;
}

.sf-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

.sf-content th,
.sf-content td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  text-align: left;
}

.sf-content th {
  background-color: var(--bg-secondary);
  font-weight: 600;
}

.sf-content tr:nth-child(even) {
  background-color: rgba(22, 27, 34, 0.2);
}

/* Callout Blocks */
.sf-callout {
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-left: 4px solid;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background-color: var(--bg-secondary);
}

.sf-callout--note {
  border-left-color: var(--accent-blue);
  background-color: rgba(88, 166, 255, 0.05);
}

.sf-callout--tip {
  border-left-color: var(--accent-green);
  background-color: rgba(63, 185, 80, 0.05);
}

.sf-callout--warning {
  border-left-color: var(--accent-orange);
  background-color: rgba(240, 136, 62, 0.05);
}

.sf-callout__title {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sf-callout--note .sf-callout__title { color: var(--accent-blue); }
.sf-callout--tip .sf-callout__title { color: var(--accent-green); }
.sf-callout--warning .sf-callout__title { color: var(--accent-orange); }

.sf-callout p:last-child {
  margin-bottom: 0;
}

/* Tab Container for Deployment */
.sf-tab-nav {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2rem;
  gap: 0.5rem;
}

.sf-tab-button {
  background: none;
  border: none;
  padding: 0.75rem 1.25rem;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.sf-tab-button:hover,
.sf-tab-button.active {
  color: var(--text-primary);
}

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

.sf-tab-content {
  display: none;
}

.sf-tab-content.active {
  display: block;
}

/* Grid ecosystem cards */
.sf-packages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin: 2rem 0;
}

.sf-package-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: all var(--transition-normal);
}

.sf-package-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-purple);
  box-shadow: 0 0 15px rgba(188, 140, 255, 0.1);
}

.sf-package-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.sf-package-card__title {
  font-size: 1.15rem;
  font-weight: 600;
}

.sf-package-card__tag {
  font-size: 0.8rem;
  font-weight: 600;
  background-color: rgba(188, 140, 255, 0.1);
  color: var(--accent-purple);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
}

.sf-package-card__desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Companion Book promo card */
.sf-book-card {
  display: flex;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  gap: 2rem;
  align-items: center;
  margin: 3rem 0;
}

.sf-book-card__cover {
  width: 140px;
  height: 200px;
  background: linear-gradient(135deg, #1f2937, #111827);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.5rem;
  border: 1px solid rgba(255,255,255,0.05);
}

.sf-book-card__cover-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
}

.sf-book-card__cover-author {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.sf-book-card__content h3 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.sf-book-card__meta {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  margin-bottom: 1rem;
}

.sf-book-card__desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

/* Footer styling */
.sf-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 4rem 1.5rem 2rem;
  margin-top: auto;
}

.sf-footer-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  padding-bottom: 3rem;
}

.sf-footer-col__title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  letter-spacing: 0.05em;
}

.sf-footer-links {
  list-style: none;
}

.sf-footer-links li {
  margin-bottom: 0.75rem;
}

.sf-footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.sf-footer-links a:hover {
  color: var(--text-primary);
}

.sf-footer-copyright {
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

/* Mobile Sidebar Drawer Toggles */
.sf-sidebar-toggle {
  display: none;
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--accent-blue);
  color: #fff;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(88, 166, 255, 0.4);
  z-index: 90;
  align-items: center;
  justify-content: center;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .sf-docs-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .sf-sidebar {
    position: fixed;
    top: var(--nav-height);
    left: -100%;
    width: var(--sidebar-width);
    height: calc(100vh - var(--nav-height));
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    transition: left var(--transition-normal);
    z-index: 95;
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
  }
  
  .sf-sidebar.open {
    left: 0;
  }
  
  .sf-sidebar-toggle {
    display: flex;
  }
  
  .sf-footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .sf-nav__menu {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    align-items: stretch;
  }
  
  .sf-nav__menu.open {
    display: flex;
  }
  
  .sf-nav__hamburger {
    display: block;
  }
  
  .sf-stats-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .sf-stat-card {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
  }
  
  .sf-stat-card:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  
  .sf-features-grid,
  .sf-packages-grid {
    grid-template-columns: 1fr;
  }
  
  .sf-book-card {
    flex-direction: column;
    text-align: center;
    padding: 1.5rem;
  }
  
  .sf-book-card__cover {
    margin: 0 auto;
  }
  
  .sf-footer-grid {
    grid-template-columns: 1fr;
  }
  
  .sf-footer-copyright {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* Custom Highlight colors for mono syntax highlighting */
.pl-c { color: #8b949e; } /* comment */
.pl-k { color: #ff7b72; } /* keyword */
.pl-s { color: #a5d6ff; } /* string */
.pl-en { color: #d2a8ff; } /* entity / function */
.pl-c1 { color: #79c0ff; } /* constant */
.pl-v { color: #ffa657; } /* variable */
.pl-mi { color: #ffa657; font-style: italic; }