/* Modern Styling with Dark/Light Theme Support */

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-light: #e0e7ff;
  --border: #e2e8f0;
  --success: #10b981;
  --warning: #f59e0b;
  --code-bg: #1e293b;
  --code-text: #e2e8f0;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --radius: 12px;
  --transition: 0.3s ease;
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --accent: #818cf8;
  --accent-hover: #a5b4fc;
  --accent-light: #312e81;
  --border: #334155;
  --code-bg: #020617;
  --code-text: #e2e8f0;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.4);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  transition: background var(--transition), color var(--transition);
}

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(10px);
  z-index: 100;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}

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

/* Theme Toggle */
.theme-toggle {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 0.5rem;
  cursor: pointer;
  display: flex;
  gap: 0.25rem;
  transition: all var(--transition);
}

.theme-toggle:hover {
  border-color: var(--accent);
}

.theme-toggle button {
  background: transparent;
  border: none;
  padding: 0.5rem;
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 1rem;
}

.theme-toggle button.active {
  background: var(--accent);
  color: white;
}

/* Language Toggle */
.lang-toggle {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.lang-toggle a {
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

.lang-toggle a:hover,
.lang-toggle a.active {
  background: var(--accent);
  color: white;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, var(--accent-light) 0%, var(--bg-secondary) 100%);
  border-radius: var(--radius);
  margin-bottom: 3rem;
}

.hero-logo {
  height: 80px;
  width: auto;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem;
}

/* Language Cards */
.lang-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.lang-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.lang-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-hover) 100%);
  transform: scaleX(0);
  transition: transform var(--transition);
}

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

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

.lang-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

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

.lang-card .flag {
  font-size: 2rem;
  margin-bottom: 1rem;
  display: block;
}

/* Content Sections */
.content {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px solid var(--border);
  margin-bottom: 2rem;
}

.content h1 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.content h2 {
  font-size: 1.75rem;
  margin: 2rem 0 1rem;
  color: var(--text-primary);
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--accent-light);
}

.content h3 {
  font-size: 1.25rem;
  margin: 1.5rem 0 0.75rem;
  color: var(--accent);
}

.content p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.content ul, .content ol {
  margin: 1rem 0;
  padding-left: 1.5rem;
}

.content li {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: var(--bg-primary);
  border-radius: var(--radius);
  overflow: hidden;
}

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

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

tr:hover {
  background: var(--bg-tertiary);
}

/* Code Blocks */
pre {
  background: var(--code-bg);
  color: var(--code-text);
  padding: 1.5rem;
  border-radius: var(--radius);
  overflow-x: auto;
  margin: 1.5rem 0;
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.9rem;
  line-height: 1.6;
}

code {
  font-family: 'Fira Code', 'Consolas', monospace;
  background: var(--bg-tertiary);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
}

pre code {
  background: transparent;
  padding: 0;
}

/* Screenshots */
.screenshot {
  max-width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: 1.5rem 0;
  border: 1px solid var(--border);
}

.screenshot-wrapper {
  text-align: center;
  margin: 2rem 0;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.card {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: all var(--transition);
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.card h4 {
  color: var(--accent);
  margin-bottom: 0.5rem;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-new {
  background: var(--success);
  color: white;
}

.badge-soon {
  background: var(--warning);
  color: white;
}

/* Navigation */
.navigation {
  display: flex;
  justify-content: space-between;
  padding: 2rem 0;
  margin-top: 2rem;
  border-top: 1px solid var(--border);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  transition: all var(--transition);
}

.nav-link:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.nav-link.disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* Footer */
.footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  margin-top: 3rem;
}

/* Feature Icons */
.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Quick Links */
.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2rem 0;
}

.quick-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  transition: all var(--transition);
}

.quick-link:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .container {
    padding: 1rem;
  }
  
  .navbar {
    flex-direction: column;
    gap: 1rem;
  }
  
  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .navigation {
    flex-direction: column;
    gap: 1rem;
  }
}

/* Callout Boxes */
.callout {
  background: var(--accent-light);
  border-left: 4px solid var(--accent);
  padding: 1rem 1.5rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.5rem 0;
}

.callout.warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: var(--warning);
}

.callout.success {
  background: rgba(16, 185, 129, 0.1);
  border-color: var(--success);
}

/* Download Buttons */
.download-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin: 2rem 0;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--bg-secondary);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s ease;
  min-width: 180px;
}

.download-btn:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.download-btn .icon {
  font-size: 2rem;
}

.download-btn .text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.download-btn .text strong {
  font-size: 1rem;
  color: var(--text-primary);
}

.download-btn .text small {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.download-btn:hover {
  border-color: var(--accent);
}

.download-btn.windows:hover { border-color: #0078d4; }
.download-btn.linux:hover { border-color: #e95420; }
.download-btn.macos:hover { border-color: #a2aaad; }
.download-btn.android:hover { border-color: #3ddc84; }
.download-btn.web:hover { border-color: var(--accent); }

.all-versions {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  transition: all 0.3s ease;
}

.all-versions:hover {
  background: var(--accent);
  color: white;
}

.text-center {
  text-align: center;
}