/* ============================================================
   base.css — Reset, base layout, typography, utilities
   ============================================================ */

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

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

body {
  background:
    radial-gradient(120% 90% at 50% -10%, var(--color-ink-2) 0%, var(--color-ink-1) 45%, var(--color-ink-0) 100%);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--line-height-body);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Film-grain overlay for cinematic texture */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: var(--z-hud);
  pointer-events: none;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

img { user-select: none; -webkit-user-drag: none; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

::selection {
  background: rgba(232, 205, 160, 0.3);
  color: var(--color-cream);
}

:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---- Stage ---- */
.stage {
  position: relative;
  z-index: var(--z-scene);
  min-height: 100vh;
}

.particles-canvas {
  position: fixed;
  inset: 0;
  z-index: var(--z-canvas);
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* ---- Type helpers ---- */
.display {
  font-family: var(--font-display);
  letter-spacing: var(--letter-spacing-display);
  font-weight: 500;
}

.serif { font-family: var(--font-display); }

.soft   { color: var(--color-text-soft); }
.faint  { color: var(--color-text-faint); }
.gold   { color: var(--color-accent); }

.uppercase {
  text-transform: uppercase;
  letter-spacing: 0.28em;
}

/* ---- A11y ---- */
[hidden] { display: none !important; }

.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;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}