/* Base styles and global layout */

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

*::before,
*::after {
  box-sizing: border-box;
}

/* Root HTML settings */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

/* Body with gradient background */
body {
  font-family: var(--font-sans);
  background: linear-gradient(135deg, var(--bg-page) 0%, #0d1220 100%);
  color: var(--text-primary);
  line-height: var(--line-height-normal);
  min-height: 100vh;
  transition: background var(--transition-slow), color var(--transition-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Animated background pattern overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(0, 240, 255, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(157, 0, 255, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(204, 255, 0, 0.02) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
  animation: subtleShift 20s ease-in-out infinite;
}

/* Subtle breathing animation for background */
@keyframes subtleShift {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 0.7; }
}

/* Main content container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-lg);
  position: relative;
  z-index: 1;
  width: 100%;
  box-sizing: border-box;
}

/* Container responsive adjustments */
@media (max-width: 1024px) {
  .container {
    max-width: 100%;
    padding: var(--space-md);
  }
}

@media (max-width: 768px) {
  .container {
    padding: var(--space-md) var(--space-sm);
  }
}

@media (max-width: 430px) {
  .container {
    padding: var(--space-sm);
  }
}

@media (max-width: 375px) {
  .container {
    padding: var(--space-xs) var(--space-sm);
  }
}

/* Custom scrollbar styling */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-surface);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-neon-cyan);
  box-shadow: var(--glow-neon-cyan);
}