:root {
  --primary: #0066ff;
  --primary-dark: #0052cc;
  --primary-light: #4d94ff;
  --secondary: #00cc88;
  --accent: #ff3366;
  --bg: #fafbfc;
  --card-bg: #ffffff;
  --text: #172b4d;
  --text-light: #6b778c;
  --border: #dfe1e6;
  --code-bg: #f4f5f7;
  --shadow: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  scroll-behavior: smooth;
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

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

header {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 1px 0 rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-size: 1.6rem;
  font-weight: 900;
  background: linear-gradient(135deg, #5b7bf5, #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  letter-spacing: -1px;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
  position: relative;
  font-size: 0.95rem;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s;
}

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

.nav-links a:hover::after {
  width: 100%;
}

.hero {
  padding: 6rem 0 5rem;
  text-align: center;
  background: linear-gradient(135deg, #5b7bf5 0%, #7c3aed 50%, #a855f7 100%);
  color: white;
  margin-bottom: 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 1rem;
  color: white;
  font-weight: 800;
  letter-spacing: -2px;
  position: relative;
  z-index: 1;
  text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.hero .tagline {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: rgba(255, 255, 255, 0.95);
  position: relative;
  z-index: 1;
}

.hero p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.9);
  max-width: 750px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

.section {
  padding: 2.5rem 0;
}

.section h2 {
  font-size: 2.2rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #5b7bf5 0%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
  letter-spacing: -1px;
  position: relative;
  display: inline-block;
}

.section h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 70px;
  height: 4px;
  background: linear-gradient(90deg, #5b7bf5, #7c3aed);
  border-radius: 3px;
  box-shadow: 0 2px 8px rgba(91, 123, 245, 0.3);
}

.section h3 {
  font-size: 1.5rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--text);
  font-weight: 700;
}

code {
  background: var(--code-bg);
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  font-family: 'JetBrains Mono', 'Monaco', 'Courier New', monospace;
  font-size: 0.9em;
  color: var(--primary);
  font-weight: 600;
  border: 1px solid var(--border);
}

pre {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: #e2e8f0;
  padding: 2rem;
  border-radius: 12px;
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid rgba(124, 58, 237, 0.3);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,0.05);
  position: relative;
}

pre::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--secondary), transparent);
}

pre code {
  color: #e2e8f0;
  background: none;
  padding: 0;
  border: none;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 400;
}

.btn {
  display: inline-block;
  padding: 1.2rem 2.5rem;
  background: white;
  color: var(--primary);
  text-decoration: none;
  border-radius: 12px;
  font-weight: 700;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 20px rgba(255,255,255,0.3);
  border: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(124, 58, 237, 0.1);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(255,255,255,0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 8px 30px rgba(255,255,255,0.2);
}

.tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 2px solid var(--border);
  margin-bottom: 2rem;
}

.tab {
  padding: 0.75rem 1.5rem;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--text-light);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.tab:hover {
  color: var(--primary);
}

.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab-content {
  display: none;
}

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

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.feature-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: all 0.3s;
  border: 1px solid var(--border);
}

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

.feature-card h3 {
  color: var(--primary);
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.3rem;
  font-weight: 700;
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  display: inline-block;
  filter: drop-shadow(0 4px 8px rgba(124, 58, 237, 0.2));
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: var(--card-bg);
  box-shadow: var(--shadow);
  border-radius: 12px;
  overflow: hidden;
}

th, td {
  padding: 1.2rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

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

th {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
}

tbody tr {
  transition: background 0.2s;
}

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

.card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
  margin: 2rem 0;
  border: 1px solid var(--border);
}

.card h4 {
  color: var(--primary);
  margin-top: 0;
  font-size: 1.2rem;
  font-weight: 700;
}

footer {
  background: linear-gradient(135deg, #2d3748, #1a202c);
  color: rgba(255, 255, 255, 0.9);
  text-align: center;
  padding: 3rem 0;
  margin-top: 5rem;
  border-top: 4px solid var(--primary);
}

footer a {
  color: var(--secondary);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s;
}

footer a:hover {
  color: white;
  text-decoration: underline;
}

ul {
  margin-left: 2rem;
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .nav-links {
    gap: 1rem;
    font-size: 0.9rem;
  }
  
  .tabs {
    overflow-x: auto;
  }
}