/* ============================================================
   base.css — Global Base Styles
   Typography, body, global pseudo-elements.
   ============================================================ */

body {
  background-color: var(--color-bg-0);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--leading-normal);
  overflow-x: hidden;
}

/* ── Scanlines overlay ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 2px,
    rgba(0, 0, 0, 0.07) 2px,
    rgba(0, 0, 0, 0.07) 4px
  );
  pointer-events: none;
  z-index: var(--z-scanline);
}

/* ── Vignette overlay ── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, 0.45) 100%);
  pointer-events: none;
  z-index: var(--z-overlay);
}

/* ── Skip link (accessibility) ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-green);
  color: var(--color-bg-0);
  padding: var(--space-2) var(--space-4);
  font-weight: var(--weight-semi);
  font-size: var(--text-sm);
  z-index: 9999;
  border-radius: var(--border-radius);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-2);
}

/* ── Selection ── */
::selection {
  background: var(--color-green-muted);
  color: var(--color-green);
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-1);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-green-dim);
}