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

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

/* Custom Properties */
:root {
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary-color: #f59e0b;
  --secondary-dark: #d97706;
  --accent-color: #10b981;
  --accent-dark: #059669;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --background-primary: #ffffff;
  --background-secondary: #f8fafc;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

/* General Styles */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--background-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background: var(--background-primary);
  border-bottom: 1px solid var(--border-color);
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
}

.site-title {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: -0.025em;
  text-transform: lowercase;
}

/* Hero Section */
.hero {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--background-primary);
  color: var(--text-primary);
  text-align: center;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  opacity: 0.03;
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero h2 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 24px;
  line-height: 1.2;
  letter-spacing: -0.025em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  font-weight: 400;
}

/* Buttons */
.buttons {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  max-width: 400px;
  margin: 0 auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  width: 100%;
  min-width: 280px;
  position: relative;
  overflow: hidden;
  border: 2px solid transparent;
  letter-spacing: 0.025em;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

/* Button Variants */
.btn.primary {
  background: var(--primary-color);
  color: white;
  box-shadow: var(--shadow-md);
}

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

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

.btn.secondary:hover {
  background: var(--secondary-color);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn.accent {
  background: var(--gradient-secondary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn.accent:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  filter: brightness(1.1);
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero {
    padding: 60px 0;
  }
  
  .hero h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
  }
  
  .hero p {
    font-size: 1.125rem;
    margin-bottom: 40px;
  }
  
  .buttons {
    gap: 12px;
  }
  
  .btn {
    min-width: 260px;
    padding: 14px 28px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  .site-title {
    font-size: 1.5rem;
  }
  
  .hero {
    padding: 40px 0;
  }

  .hero h2 {
    font-size: 2rem;
    margin-bottom: 16px;
  }
  
  .hero p {
    font-size: 1rem;
    margin-bottom: 32px;
  }

  .btn {
    min-width: 240px;
    padding: 12px 24px;
    font-size: 0.9rem;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for accessibility */
.btn:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}