/* ================================================================
   base.css — Reset, root styles, accessibility primitives
================================================================ */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
}

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

button {
  cursor: none;
  font-family: inherit;
  border: none;
  background: none;
}

a {
  color: inherit;
  text-decoration: none;
}

ol, ul {
  list-style: none;
}

/* ── Skip link ───────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-3);
  background: var(--color-text);
  color: var(--color-bg);
  padding: var(--space-1) var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  z-index: 9999;
  transition: top var(--transition);
  border-radius: var(--radius);
}

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

/* ── Focus visible ───────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--c5);
  outline-offset: 3px;
}

/* ── Reduced motion ──────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Utility classes ─────────────────────────────────────────── */
.rainbow-text {
  background: var(--rainbow);
  background-size: 300% 300%;
  animation: rainbowShift 5s ease infinite;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.rainbow-bg {
  background: var(--rainbow);
  background-size: 400% 400%;
  animation: rainbowShift 8s ease infinite;
}

/* ── Reveal on scroll ────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}