/* Global Design Tokens */
:root {
  /* Colors - Dark Theme (Default) */
  --color-bg: #0a0a0a;
  --color-text: #f0f0f0;
  --color-text-muted: #a0a0a0;
  --color-primary: #3b82f6;
  /* Modern Blue */
  --color-primary-hover: #2563eb;
  --color-card-bg: rgba(255, 255, 255, 0.05);
  --color-card-border: rgba(255, 255, 255, 0.1);
  --glass-bg: rgba(20, 20, 20, 0.7);
  --glass-border: rgba(255, 255, 255, 0.08);

  /* Typography */
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --font-size-base: 16px;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 3rem;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Animation */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

/* Light Theme Support */
@media (prefers-color-scheme: light) {
  :root {
    --color-bg: #ffffff;
    --color-text: #1a1a1a;
    --color-text-muted: #666666;
    --color-card-bg: rgba(240, 240, 240, 0.6);
    --color-card-border: rgba(0, 0, 0, 0.05);
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(0, 0, 0, 0.05);
  }
}

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

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul {
  list-style: none;
}

/* Utility Classes */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

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

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

/* Glassmorphism Card */
.glass-card {
  background: var(--color-card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-card-border);
  border-radius: 16px;
  padding: var(--spacing-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  border-radius: 12px;
  background-color: var(--color-primary);
  color: white;
  font-weight: 600;
  transition: background-color var(--transition-fast);
}

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

/* Animation Utilities */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}