/* Tokens mirror mobile-app/src/design-system/tokens.js (light theme). */
:root {
  --bg: #fcfcfd;
  --tint: #f0f1f4;
  --tint-blue: #e6f4fe;
  --border: #e1e4e9;
  --text: #1e2028;
  --muted: #5a5e68;
  --accent: #dbff7f;
  --accent-hover: #cde29e;
  --radius: 16px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { color-scheme: light; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

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

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding-inline: 24px;
}

/* Nav */
.nav {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  text-decoration: none;
  font-size: 1.125rem;
}

.brand img { width: 32px; height: 32px; border-radius: 8px; }

.nav-links { display: flex; gap: 28px; }

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.9375rem;
}

.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }

/* Hero */
.hero {
  padding-block: 64px 96px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0 0 20px;
  max-width: 14ch;
}

.hero p {
  font-size: 1.125rem;
  color: var(--muted);
  margin: 0 0 32px;
  max-width: 40ch;
}

/* Buttons */
.actions { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex;
  align-items: center;
  height: 48px;
  padding-inline: 22px;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background-color 120ms ease, border-color 120ms ease;
}

.btn-primary { background: var(--accent); color: var(--text); }
.btn-primary:hover { background: var(--accent-hover); }

.btn-secondary { border-color: var(--border); background: transparent; }
.btn-secondary:hover { border-color: var(--text); }

.btn:focus-visible, a:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 3px;
}

/* How it works */
.section { padding-block: 24px 96px; }

.section h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 32px;
}

.bento {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
}

.cell {
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
}

.cell h3 { margin: 0 0 8px; font-size: 1.25rem; }

.cell p { margin: 0; color: var(--muted); max-width: 48ch; }

.cell-wide {
  grid-row: 1 / span 2;
  background: var(--tint-blue);
  border-color: transparent;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 320px;
}

.cell-tint { background: var(--tint); border-color: transparent; }

/* Prose pages (privacy, support) */
.prose {
  max-width: 65ch;
  padding-block: 48px 96px;
}

.prose h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0 0 8px;
}

.prose .meta { color: var(--muted); margin: 0 0 40px; }

.prose h2 { font-size: 1.375rem; margin: 40px 0 12px; letter-spacing: -0.01em; }

.prose p, .prose li { color: var(--text); }

.prose ul { padding-left: 20px; }

.prose li + li { margin-top: 6px; }

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding-block: 28px 40px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 0.9375rem;
}

.footer nav { display: flex; gap: 24px; }

.footer a { text-decoration: none; }
.footer a:hover { color: var(--text); }

/* Mobile collapse */
@media (max-width: 767px) {
  .nav-links { gap: 20px; }
  .hero { padding-block: 32px 64px; }
  .bento { grid-template-columns: 1fr; grid-template-rows: none; }
  .cell-wide { grid-row: auto; min-height: 220px; }
  .section { padding-block: 0 64px; }
}

@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
}