/* ═══════════════════════════════════════════════
   Base — reset, typography, global styles
   ═══════════════════════════════════════════════ */

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

::selection {
  background: var(--selection);
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 14px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* CRT scanline overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

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

a:hover {
  color: var(--text-bright);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

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

code, pre {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

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