/* MindBalancer Website - Dark Theme */

:root {
  --bg-primary: #0d0d0d;
  --bg-secondary: #141414;
  --bg-tertiary: #1a1a1a;
  --bg-elevated: #222222;
  --text-primary: #f5f5f5;
  --text-secondary: #a0a0a0;
  --text-muted: #666666;
  --accent: #7c3aed;
  --accent-light: #a78bfa;
  --accent-dark: #5b21b6;
  --gradient-start: #7c3aed;
  --gradient-end: #2563eb;
  --border-color: #2a2a2a;
  --code-bg: #1e1e1e;
  --success: #22c55e;
  --warning: #eab308;
  --error: #ef4444;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

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

a {
  color: var(--accent-light);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 120px 0;
}

.section-sm {
  padding: 80px 0;
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 13, 13, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo svg {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.3);
  color: white;
}

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

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--text-muted);
  color: var(--text-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1rem;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(124, 58, 237, 0.15), transparent);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.hero-badge span {
  color: var(--accent-light);
}

.hero h1 {
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 40px;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 60px;
}

.hero-code {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px 24px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 16px;
}

.hero-code code {
  color: var(--text-primary);
}

.hero-code .copy-btn {
  background: var(--bg-tertiary);
  border: none;
  padding: 8px 12px;
  border-radius: 6px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.hero-code .copy-btn:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

/* Stats Bar */
.stats-bar {
  display: flex;
  gap: 60px;
  padding-top: 60px;
  border-top: 1px solid var(--border-color);
  margin-top: 60px;
}

.stat {
  text-align: left;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Architecture Diagram */
.architecture {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.arch-diagram {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 40px 0;
}

.arch-box {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
}

.arch-box h4 {
  margin-bottom: 8px;
}

.arch-box p {
  font-size: 0.875rem;
}

.arch-box.highlight {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(37, 99, 235, 0.1));
  border-color: var(--accent);
}

.arch-arrow {
  color: var(--text-muted);
  font-size: 1.5rem;
}

/* Features Section */
.features-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 80px;
}

.features-header h2 {
  margin-bottom: 16px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border-color);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
}

.feature {
  background: var(--bg-primary);
  padding: 48px;
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(37, 99, 235, 0.2));
  border-radius: 12px;
  margin-bottom: 24px;
  color: var(--accent-light);
}

.feature h3 {
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.feature p {
  font-size: 0.95rem;
  line-height: 1.7;
}

.feature-list {
  list-style: none;
  margin-top: 20px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.feature-list li::before {
  content: '→';
  color: var(--accent-light);
}

/* Code Block */
.code-section {
  background: var(--bg-secondary);
}

.code-section .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.code-content h2 {
  margin-bottom: 16px;
}

.code-content p {
  margin-bottom: 24px;
}

.code-block {
  background: var(--code-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

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

.code-dot.red { background: #ff5f57; }
.code-dot.yellow { background: #febc2e; }
.code-dot.green { background: #28c840; }

.code-header span {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.code-block pre {
  padding: 20px;
  overflow-x: auto;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
  line-height: 1.6;
}

.code-block code {
  color: var(--text-secondary);
}

.code-block .keyword { color: #c792ea; }
.code-block .string { color: #c3e88d; }
.code-block .comment { color: #546e7a; }
.code-block .function { color: #82aaff; }
.code-block .variable { color: #f78c6c; }

/* Providers Section */
.providers {
  text-align: center;
}

.providers h2 {
  margin-bottom: 16px;
}

.providers > p {
  margin-bottom: 60px;
}

.provider-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px;
  opacity: 0.6;
}

.provider-logo {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* CTA Section */
.cta {
  text-align: center;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.cta h2 {
  margin-bottom: 16px;
}

.cta p {
  margin-bottom: 40px;
  font-size: 1.1rem;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* Footer */
footer {
  padding: 60px 0;
  border-top: 1px solid var(--border-color);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.footer-brand p {
  margin-top: 12px;
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 80px;
}

.footer-column h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-column a {
  display: block;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 6px 0;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 60px;
  padding-top: 30px;
  border-top: 1px solid var(--border-color);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-social {
  display: flex;
  gap: 20px;
}

.footer-social a {
  color: var(--text-muted);
}

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

/* Docs Page */
.docs-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 60px;
  padding-top: 100px;
}

.docs-sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.docs-nav-group {
  margin-bottom: 32px;
}

.docs-nav-group h4 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.docs-nav-group a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 8px 0;
  border-left: 2px solid transparent;
  padding-left: 16px;
  margin-left: -16px;
}

.docs-nav-group a:hover,
.docs-nav-group a.active {
  color: var(--text-primary);
  border-left-color: var(--accent);
}

.docs-content {
  max-width: 800px;
}

.docs-content h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.docs-content > p:first-of-type {
  font-size: 1.15rem;
  margin-bottom: 40px;
}

.docs-content h2 {
  font-size: 1.5rem;
  margin-top: 48px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.docs-content h3 {
  font-size: 1.2rem;
  margin-top: 32px;
  margin-bottom: 12px;
}

.docs-content p {
  margin-bottom: 16px;
}

.docs-content ul, .docs-content ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

.docs-content li {
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.docs-content code {
  background: var(--bg-tertiary);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9em;
}

.docs-content pre {
  background: var(--code-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 20px;
  margin: 24px 0;
  overflow-x: auto;
}

.docs-content pre code {
  background: transparent;
  padding: 0;
}

.docs-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

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

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

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

/* Responsive */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .code-section .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .docs-layout {
    grid-template-columns: 1fr;
  }
  
  .docs-sidebar {
    position: relative;
    top: 0;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  
  .nav-links {
    display: none;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .stats-bar {
    flex-wrap: wrap;
    gap: 30px;
  }
  
  .arch-diagram {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .arch-arrow {
    transform: rotate(90deg);
  }
  
  .footer-content {
    flex-direction: column;
    gap: 40px;
  }
  
  .footer-links {
    flex-wrap: wrap;
    gap: 40px;
  }
}