@import url('https://fonts.googleapis.com/css2?family=Public+Sans:ital,wght@0,100..900;1,100..900&family=Vend+Sans:ital,wght@0,300..700;1,300..700&display=swap');

/* ========== CSS Custom Properties ========== */
:root {
  /* Colors */
  --color-bg-primary: #0a0e1a;
  --color-bg-secondary: #111827;
  --color-bg-tertiary: #1f2937;
  --color-text-primary: #f9fafb;
  --color-text-secondary: #d1d5db;
  --color-text-muted: #9ca3af;
  --color-accent-blue: #3b9eff;
  --color-accent-green: #00847a;
  --color-accent-cyan: #00d9ff;
  --color-border: #374151;
  --color-border-light: #4b5563;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* Typography */
  --font-display: 'Vend Sans', serif;
  --font-body: 'Public Sans', sans-serif;
  --font-code: 'JetBrains Mono', monospace;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Breakpoints */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;

  /* Borders & Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
}

/* ========== Reset & Base Styles ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ========== Typography ========== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

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

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

code {
  font-family: var(--font-code);
  font-size: 0.875em;
  background-color: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
  color: var(--color-accent-cyan);
}

pre {
  font-family: var(--font-code);
  font-size: 0.875rem;
  line-height: 1.5;
  overflow-x: auto;
}

/* ========== Layout Containers ========== */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

.container-narrow {
  max-width: 960px;
}

.section {
  padding: var(--space-3xl) 0;
}

.section-sm {
  padding: var(--space-2xl) 0;
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-2xl) 0;
  }
  .section-sm {
    padding: var(--space-xl) 0;
  }
}

/* ========== Grid System ========== */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ========== Navigation ========== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  max-width: 1280px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.nav-logo img {
  height: 40px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.nav-links a {
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-links a i {
  margin-right: 0.375rem;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md);
    gap: var(--space-md);
    transform: translateY(-100%);
    opacity: 0;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
    pointer-events: none;
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn i {
  margin-right: 0.375rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-green));
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-primary);
  border: 2px solid var(--color-border-light);
}

.btn-secondary:hover {
  border-color: var(--color-accent-blue);
  background-color: rgba(59, 130, 246, 0.1);
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* ========== Cards ========== */
.card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-blue), var(--color-accent-green));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-light);
  box-shadow: var(--shadow-lg);
}

.card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-green));
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  font-size: 1.5rem;
  color: white;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

.card-description {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ========== Code Blocks ========== */
.code-block {
  position: relative;
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: var(--space-lg) 0;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  background-color: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--color-border);
}

.code-language {
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.code-copy-btn {
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.code-copy-btn:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-accent-blue);
  color: var(--color-accent-blue);
}

.code-copy-btn.copied {
  background-color: var(--color-success);
  border-color: var(--color-success);
  color: white;
}

.code-content {
  padding: var(--space-md);
  overflow-x: auto;
}

.code-content pre {
  margin: 0;
}

/* ========== Hero Section ========== */
.hero {
  position: relative;
  padding: calc(var(--space-3xl) + 60px) 0 var(--space-3xl);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../images/hero-bg.svg');
  background-size: cover;
  background-position: center;
  opacity: 0.1;
  z-index: -1;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--color-text-primary), var(--color-accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

/* ========== Terminal Animation ========== */
.terminal {
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  font-family: var(--font-code);
  font-size: 0.875rem;
  max-width: 600px;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
}

.terminal-header {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot:nth-child(1) { background-color: #ef4444; }
.terminal-dot:nth-child(2) { background-color: #f59e0b; }
.terminal-dot:nth-child(3) { background-color: #10b981; }

.terminal-content {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.terminal-line {
  display: flex;
  margin-bottom: 0.5rem;
}

.terminal-prompt {
  color: var(--color-accent-cyan);
  margin-right: var(--space-xs);
}

.terminal-command {
  color: var(--color-text-primary);
}

.terminal-output {
  color: var(--color-text-muted);
  margin-left: 1.5rem;
}

.terminal-output i {
  margin-right: 0.5rem;
}

/* ========== Features Grid ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

/* ========== Split Layout ========== */
.split {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2xl);
  align-items: center;
}

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

/* ========== Corner Dots Decoration ========== */
.corner-dots {
  position: absolute;
  width: 40px;
  height: 40px;
  background-image: url('../images/corner-dots.svg');
  background-size: contain;
  opacity: 0.3;
}

.corner-dots-top-left {
  top: -10px;
  left: -10px;
}

.corner-dots-top-right {
  top: -10px;
  right: -10px;
  transform: rotate(90deg);
}

.corner-dots-bottom-right {
  bottom: -10px;
  right: -10px;
  transform: rotate(180deg);
}

/* ========== Footer ========== */
.footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-section h4 {
  font-family: var(--font-body);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-links a i {
  margin-right: 0.375rem;
}

.footer-links a:hover {
  color: var(--color-accent-blue);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* ========== Badges ========== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary {
  background-color: rgba(59, 130, 246, 0.2);
  color: var(--color-accent-blue);
  border: 1px solid var(--color-accent-blue);
}

.badge-success {
  background-color: rgba(16, 185, 129, 0.2);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

/* ========== Utilities ========== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.hidden { display: none; }

/* ========== Scroll Animations ========== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== Documentation Specific Styles ========== */
.docs-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-2xl);
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-lg);
  align-items: start;
}

@media (max-width: 1024px) {
  .docs-layout {
    grid-template-columns: 1fr;
  }
}

.docs-sidebar {
  position: sticky;
  top: 80px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;

  /* Custom scrollbar styling */
  scrollbar-width: thin;
  scrollbar-color: rgba(75, 85, 99, 0.3) transparent;
}

/* Webkit scrollbar styling (Chrome, Safari, Edge) */
.docs-sidebar::-webkit-scrollbar {
  width: 6px;
}

.docs-sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.docs-sidebar::-webkit-scrollbar-thumb {
  background-color: rgba(75, 85, 99, 0.3);
  border-radius: 3px;
}

.docs-sidebar::-webkit-scrollbar-thumb:hover {
  background-color: rgba(75, 85, 99, 0.5);
}

@media (max-width: 1024px) {
  .docs-sidebar {
    position: relative;
    top: 0;
    max-height: none;
    margin-bottom: var(--space-lg);
  }
}

.docs-nav {
  padding: var(--space-lg);
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.docs-nav h4 {
  font-family: var(--font-body);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  margin-top: var(--space-lg);
}

.docs-nav h4:first-child {
  margin-top: 0;
}

.docs-nav ul {
  list-style: none;
}

.docs-nav li {
  margin-bottom: var(--space-xs);
}

.docs-nav a {
  display: block;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.docs-nav a:hover {
  color: var(--color-accent-cyan);
  background-color: rgba(139, 238, 255, 0.1);
}

.docs-nav a.active {
  color: var(--color-accent-cyan);
  background-color: rgba(139, 238, 255, 0.15);
  font-weight: 600;
}

.docs-nav ul ul {
  margin-left: var(--space-md);
  margin-top: var(--space-xs);
}

.docs-nav ul ul a {
  font-size: 0.8125rem;
  padding: 0.25rem 0.75rem;
}

.docs-content {
  min-width: 0;
}

.docs-content h2 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border);
}

.docs-content h3 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.docs-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.docs-content th,
.docs-content td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.docs-content th {
  background-color: var(--color-bg-tertiary);
  font-weight: 600;
  color: var(--color-text-primary);
}

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

.docs-content tr:last-child td {
  border-bottom: none;
}

/* Expandable sections for docs */
.expandable {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  overflow: hidden;
}

.expandable-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.expandable-header:hover {
  background-color: var(--color-bg-tertiary);
}

.expandable-header h3 {
  margin: 0;
  font-size: 1.25rem;
}

.expandable-icon {
  font-size: 1.5rem;
  color: var(--color-text-muted);
  transition: transform var(--transition-normal);
}

.expandable.active .expandable-icon {
  transform: rotate(180deg);
}

.expandable-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.expandable.active .expandable-content {
  max-height: 5000px;
}

.expandable-body {
  padding: 0 var(--space-lg) var(--space-lg);
}