/* ==============================================
   CSS RESET & BASE STYLES
   ============================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--size-body);
  line-height: var(--line-height);
  color: var(--color-text-primary);
  background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
  background-attachment: fixed;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* CRT Overlay Effect */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    repeating-linear-gradient(
      0deg,
      var(--color-scanline) 0px,
      transparent 1px,
      transparent 2px,
      var(--color-scanline) 3px
    );
  pointer-events: none;
  z-index: var(--z-top);
  opacity: 0.4;
  animation: scanline 8s linear infinite;
}

@keyframes scanline {
  0% { transform: translateY(0); }
  100% { transform: translateY(10px); }
}

/* Typography Reset */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-md);
}

p {
  margin-bottom: var(--space-sm);
}

a {
  color: var(--color-neon-green);
  text-decoration: none;
  transition: all var(--transition-fast);
}

a:hover {
  color: var(--color-neon-yellow);
  text-shadow: var(--glow-yellow);
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  transition: all var(--transition-fast);
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

ul, ol {
  list-style-position: inside;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus Styles */
*:focus-visible {
  outline: 2px solid var(--color-neon-green);
  outline-offset: 4px;
}