/* BrainBrew — public site (placeholder). On-brand tokens from docs/BRAND_GUIDELINE.md */
:root {
  --navy: #0A1020;
  --navy-elevated: #121a2e;
  --navy-floating: #18223a;
  --cream: #F5EEE1;
  --mint: #5EE7C3;
  --violet: #A78BFA;
  --muted: #97a1b8;
  --border: rgba(245, 238, 225, 0.10);
  --shadow-1: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-2: 0 18px 40px -12px rgba(3, 6, 16, 0.75), 0 4px 12px -4px rgba(66, 31, 135, 0.35);
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --radius: 18px;
  --maxw: 640px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(1100px 620px at 50% -10%, rgba(66, 31, 135, 0.35), transparent 60%),
    var(--navy);
  color: var(--cream);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--space-5) var(--space-3) var(--space-4);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.wordmark {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-4);
  text-decoration: none;
  display: inline-block;
}
.wordmark .brain { color: var(--cream); }
.wordmark .brew  { color: var(--mint); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--violet);
  background: rgba(167, 139, 250, 0.10);
  border: 1px solid rgba(167, 139, 250, 0.28);
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  margin-bottom: var(--space-3);
}
.badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--violet);
  box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.18);
}

h1 {
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  font-weight: 700;
  margin: 0 0 var(--space-2);
}

.lead {
  font-size: 1.08rem;
  color: var(--muted);
  margin: 0 0 var(--space-3);
  max-width: 52ch;
}

.card {
  width: 100%;
  background: linear-gradient(180deg, var(--navy-floating), var(--navy-elevated));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-2);
  padding: var(--space-3);
  margin-top: var(--space-2);
}
.card p { margin: 0; color: var(--muted); }
.card p + p { margin-top: var(--space-2); }
.card a { color: var(--mint); }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.link {
  color: var(--cream);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: color 120ms ease, border-color 120ms ease, transform 120ms ease;
}
.link:hover { color: var(--mint); border-color: var(--mint); }
.link:focus-visible { outline: 2px solid var(--violet); outline-offset: 3px; border-radius: 3px; }
.link:active { transform: translateY(1px); }

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

footer {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--space-3) var(--space-3) var(--space-4);
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  align-items: center;
  justify-content: space-between;
}
footer nav { display: flex; flex-wrap: wrap; gap: var(--space-3); }
footer a {
  color: var(--muted);
  text-decoration: none;
  transition: color 120ms ease;
}
footer a:hover { color: var(--cream); }
footer a:focus-visible { outline: 2px solid var(--violet); outline-offset: 3px; border-radius: 3px; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}