/*
 * Base — reset, typography defaults, layout primitives, animations.
 * Applies the RDS tokens from tokens.css.
 */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color-scheme: light only;
}

body {
  background: var(--bg-warm);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-weight: 400;
  min-height: 100vh;
  padding: 0 var(--space-3) var(--space-8);
}

/* ── TYPE ── */

h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--ink);
  letter-spacing: var(--tr-tight);
  line-height: var(--lh-heading);
}

h1 { font-size: var(--fs-h1); letter-spacing: var(--tr-h1); }
h2 { font-size: var(--fs-h2); letter-spacing: var(--tr-h2); }
h3 { font-size: var(--fs-h3); }

/* RDS signature: <em> inside a heading → italic + coral */
h1 em, h2 em, h3 em, .display em {
  font-style: italic;
  font-weight: 400;
  color: var(--coral);
}

p {
  color: var(--ink-2);
  line-height: var(--lh-body);
}

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

a:hover { color: var(--coral); }

.display {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--fs-display);
  letter-spacing: var(--tr-display);
  line-height: var(--lh-display);
  color: var(--ink);
}

.eyebrow {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--tr-eyebrow);
  text-transform: uppercase;
  color: var(--ink-muted);
}

.meta {
  font-family: var(--font-mono);
  font-size: var(--fs-meta);
  color: var(--ink-muted);
  letter-spacing: 0.02em;
}

.muted { color: var(--ink-muted); }

/* ── LAYOUT PRIMITIVES ── */

.container {
  max-width: 1080px;
  margin: 0 auto;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.row-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.grid {
  display: grid;
  gap: var(--space-2);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-fluid { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }

.section {
  padding: var(--space-5) 0 var(--space-3);
}

.section + .section {
  padding-top: var(--space-4);
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-3);
  gap: var(--space-2);
}

.rule {
  height: 1px;
  background: var(--line);
  border: 0;
  margin: var(--space-3) 0;
}

/* ── ANIMATIONS ── */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up {
  opacity: 0;
  animation: fadeUp 0.5s ease forwards;
}

.fade-up-1 { animation-delay: 0.05s; }
.fade-up-2 { animation-delay: 0.12s; }
.fade-up-3 { animation-delay: 0.20s; }
.fade-up-4 { animation-delay: 0.28s; }
.fade-up-5 { animation-delay: 0.36s; }

/* ── RESPONSIVE ── */

@media (max-width: 720px) {
  body { padding: 0 var(--space-2) var(--space-6); }
  .grid-2, .grid-3, .grid-fluid { grid-template-columns: 1fr; }
  .section { padding: var(--space-4) 0 var(--space-2); }
  :root {
    --fs-display: 44px;
    --fs-h1: 30px;
    --fs-h2: 24px;
    --fs-h3: 20px;
  }
}