/* ─────────────────────────────────────────────────────────────────────────────
   brew-browser landing — single-file CSS
   Matches the app's design tokens (dark-first, warm amber, OKLCH).
   ───────────────────────────────────────────────────────────────────────────── */

:root {
  /* Brand */
  --brand:           oklch(72% 0.16 50);
  --brand-soft:      oklch(72% 0.16 50 / 0.18);

  /* Surfaces (dark first) */
  --void:            #0a0d0f;
  --surface:         #14191c;
  --surface-raised:  #1b2226;
  --border:          rgba(255,255,255,0.08);
  --border-strong:   rgba(255,255,255,0.15);

  /* Text */
  --text:            oklch(96% 0.005 95);
  --text-muted:      oklch(72% 0.01 95);
  --text-dim:        oklch(56% 0.008 95);

  /* Spacing */
  --pad-x:           clamp(20px, 5vw, 64px);
  --max:             1080px;

  /* Type scale */
  --font:            ui-sans-serif, -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", system-ui, sans-serif;
  --mono:            ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --void:            #f7f6f3;
    --surface:         #ffffff;
    --surface-raised:  #fbfaf7;
    --border:          rgba(0,0,0,0.08);
    --border-strong:   rgba(0,0,0,0.15);
    --text:            oklch(20% 0.005 95);
    --text-muted:      oklch(48% 0.01 95);
    --text-dim:        oklch(65% 0.008 95);
    --brand:           oklch(58% 0.15 45);
    --brand-soft:      oklch(58% 0.15 45 / 0.14);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--void);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--brand);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 120ms ease;
}
a:hover { border-bottom-color: var(--brand); }
a:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: 2px;
}

code, pre {
  font-family: var(--mono);
  font-size: 0.92em;
}
code {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
}
pre {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  padding: 16px 18px;
  border-radius: 10px;
  overflow-x: auto;
  line-height: 1.5;
}
pre code {
  background: none;
  border: none;
  padding: 0;
}

/* ──────────── HERO ──────────── */
.hero {
  padding: 64px var(--pad-x) 72px;
  background:
    radial-gradient(ellipse 800px 500px at 50% 0%, var(--brand-soft), transparent 60%),
    var(--void);
  border-bottom: 1px solid var(--border);
}
.hero-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.hero-icon {
  display: block;
  margin: 0 auto 28px;
  width: 160px;
  height: 160px;
  filter: drop-shadow(0 20px 60px rgba(0,0,0,0.55));
}
h1 {
  font-size: clamp(40px, 7vw, 64px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  line-height: 1.05;
}
.tagline {
  font-size: clamp(18px, 2.4vw, 24px);
  color: var(--text-muted);
  margin: 0 0 16px;
  font-weight: 500;
}
.sub {
  font-size: 17px;
  color: var(--text-muted);
  margin: 0 auto 28px;
  max-width: 600px;
  line-height: 1.6;
}

.cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 1px solid var(--border);
  border-bottom-width: 1px !important;
  transition: transform 120ms ease, background 120ms ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--brand);
  color: #1a1208;
  border-color: var(--brand);
}
.btn-primary:hover { background: oklch(76% 0.17 50); }
.btn-secondary {
  background: var(--surface-raised);
  color: var(--text);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
}
.btn-secondary:hover { border-color: var(--border-strong); }

.small-note {
  font-size: 13px;
  color: var(--text-dim);
  margin: 0;
}

/* ──────────── MAIN ──────────── */
main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}
.section {
  padding: 56px 0 16px;
}
.section-bordered + .section-bordered,
.section + .section-bordered {
  border-top: 1px solid var(--border);
  margin-top: 32px;
  padding-top: 56px;
}
h2 {
  font-size: clamp(24px, 3.2vw, 32px);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 32px;
  color: var(--text);
}

/* ──────────── FEATURE GRID ──────────── */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 22px 24px;
  transition: border-color 120ms ease, transform 120ms ease;
}
.feature:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.feature h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 10px;
  color: var(--text);
}
.feature p {
  font-size: 14.5px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}

/* ──────────── POSTURE LIST ──────────── */
.posture {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.posture li {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 14px 18px;
  border-radius: 10px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.55;
}
.posture li strong {
  color: var(--text);
  font-weight: 600;
}

/* ──────────── BADGES (security) ──────────── */
.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 8px 0 24px;
}
.badge {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13.5px;
  color: var(--text-muted);
  font-weight: 500;
}
.badge code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text);
  font-weight: 600;
}

/* ──────────── FOOTER ──────────── */
footer {
  border-top: 1px solid var(--border);
  margin-top: 72px;
  padding: 32px var(--pad-x);
  background: var(--surface);
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  text-align: center;
}
footer p {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--text-muted);
}
footer .copy {
  color: var(--text-dim);
  font-size: 13px;
}

/* ──────────── REDUCED MOTION ──────────── */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .btn:hover { transform: none; }
  .feature:hover { transform: none; }
}