/* ===========================
   CYlie Docs & IDE - Modern Theme
   =========================== */

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

/* CSS Variables */
:root {
  --bg-primary: #09090b;
  --bg-secondary: #18181b;
  --bg-tertiary: #27272a;
  --bg-card: linear-gradient(145deg, #1a1a1e 0%, #141417 100%);
  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --accent: #8b5cf6;
  --accent-glow: rgba(139, 92, 246, 0.3);
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --border: #27272a;
  --radius: 16px;
  --radius-sm: 8px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Animated Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 40%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 9, 11, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.logo span {
  background: linear-gradient(90deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav {
  display: flex;
  gap: 0.25rem;
  background: var(--bg-secondary);
  padding: 0.35rem;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.6rem 1.25rem;
  border-radius: 8px;
  transition: all 0.2s ease;
}

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

.nav a.active {
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
  box-shadow: 0 2px 10px var(--accent-glow);
}

/* Main Layout */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 3rem 2rem;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
}

/* Sidebar */
.sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.sidebar-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-weight: 600;
}

.sidebar-nav {
  list-style: none;
}

.sidebar-nav li {
  margin-bottom: 0.25rem;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.6rem 0.875rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

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

.sidebar-nav a.active {
  color: var(--accent);
  background: rgba(139, 92, 246, 0.1);
}

.sidebar-nav .icon {
  width: 18px;
  height: 18px;
  opacity: 0.7;
}

/* Content */
.content {
  min-width: 0;
}

/* Hero Section */
.hero {
  margin-bottom: 3rem;
  padding: 2.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero h1 span {
  background: linear-gradient(90deg, var(--accent), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero .lead {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.8;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 2rem;
  transition: all 0.3s ease;
}

.card:hover {
  border-color: rgba(139, 92, 246, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.card-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.card h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0;
}

.card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

/* Section Headers */
.section {
  margin-bottom: 3rem;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.section-number {
  width: 32px;
  height: 32px;
  background: var(--bg-tertiary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
}

.section h2 {
  font-size: 1.75rem;
  font-weight: 700;
}

/* Code Blocks */
.code-block {
  background: #0d0d0f;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin: 1rem 0;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}

.code-dots {
  display: flex;
  gap: 6px;
}

.code-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.code-dots span:nth-child(1) { background: #ff5f57; }
.code-dots span:nth-child(2) { background: #febc2e; }
.code-dots span:nth-child(3) { background: #28c840; }

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

.code-block pre {
  margin: 0;
  padding: 1.25rem;
  overflow-x: auto;
}

.code-block code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  color: #e4e4e7;
}

/* Copy Button */
.copy-btn {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.copy-btn:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* Tables */
.table-wrapper {
  overflow-x: auto;
  margin: 1rem 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th {
  background: rgba(255, 255, 255, 0.03);
  padding: 1rem 1.25rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

td {
  padding: 1rem 1.25rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

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

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

code {
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-tertiary);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.85em;
  color: var(--accent);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-primary {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent);
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.badge-success {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-danger {
  background: rgba(244, 63, 94, 0.15);
  color: var(--accent-rose);
  border: 1px solid rgba(244, 63, 94, 0.3);
}

/* Alert Boxes */
.alert {
  padding: 1.25rem;
  border-radius: var(--radius-sm);
  margin: 1rem 0;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.alert-icon {
  font-size: 1.25rem;
  line-height: 1;
}

.alert-info {
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  color: var(--accent-cyan);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  color: var(--accent-amber);
}

.alert-danger {
  background: rgba(244, 63, 94, 0.1);
  border: 1px solid rgba(244, 63, 94, 0.2);
  color: var(--accent-rose);
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--accent-emerald);
}

/* IDE Section */
.ide-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 2rem;
  transition: all 0.3s ease;
}

.ide-section:hover {
  border-color: rgba(139, 92, 246, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.ide-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.ide-logo {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.vscode { background: linear-gradient(135deg, #007ACC, #0066b8); }
.cursor { background: linear-gradient(135deg, #AC2EEB, #8B5CF6); }
.kiro { background: linear-gradient(135deg, #FF6B35, #F7931E); }
.router9 { background: linear-gradient(135deg, #6366F1, #8B5CF6); }
.windsurf { background: linear-gradient(135deg, #1DC9B1, #11998E); }

.ide-name {
  font-size: 1.25rem;
  font-weight: 600;
}

.ide-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Settings Path */
.settings-path {
  background: rgba(255, 255, 255, 0.03);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  border: 1px solid var(--border);
}

/* Footer CTA */
.cta-section {
  text-align: center;
  padding: 3rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-top: 3rem;
}

.cta-section h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.cta-section p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  font-size: 0.9rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
  color: white;
  border: none;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--accent-glow);
}

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

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

/* Responsive */
@media (max-width: 1024px) {
  .container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .sidebar {
    position: static;
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    padding-bottom: 1rem;
  }

  .sidebar-card {
    min-width: 200px;
    margin-bottom: 0;
  }
}

@media (max-width: 768px) {
  .header {
    padding: 1rem;
  }

  .nav {
    gap: 0.15rem;
    padding: 0.25rem;
  }

  .nav a {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }

  .container {
    padding: 1.5rem 1rem;
  }

  .hero {
    padding: 1.5rem;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .card, .ide-section {
    padding: 1.5rem;
  }
}