:root {
  --bg: #0f1115;
  --card: #181b22;
  --ink: #e7e9ee;
  --muted: #9aa3b2;
  --accent: #6ea8fe;
  --ok: #4caf7e;
  --warn: #e0b341;
  --line: #2a2f3a;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

a { color: var(--accent); }

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 18px 32px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(15, 17, 21, 0.92);
  backdrop-filter: blur(6px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--ink);
  text-decoration: none;
}
.brand-mark { display: block; }

.top nav { display: flex; gap: 20px; flex-wrap: wrap; }
.top nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.top nav a:hover { color: var(--ink); }

main {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  gap: 24px;
}

.hero {
  padding: 56px 4px 24px;
}

.hero-mark {
  display: block;
  margin-bottom: 16px;
}

.hero h1 {
  margin: 0;
  font-size: 56px;
  letter-spacing: -1.5px;
}

.lead {
  margin: 18px 0 0;
  font-size: 20px;
  max-width: 64ch;
  color: var(--ink);
}

.sub {
  margin: 14px 0 0;
  font-size: 17px;
  max-width: 60ch;
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px 30px;
}

.card h2 {
  margin: 0 0 14px;
  font-size: 22px;
}

.card p { margin: 0 0 14px; }
.card p:last-child { margin-bottom: 0; }

/* the read/write split — two columns where there's room, stacked on phones */
.scopes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 18px;
}

.scope h3 {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.scope ul { margin: 0; padding-left: 18px; }
.scope li { margin: 4px 0; }
.scope-note { color: var(--muted); margin: 0; }

.pill {
  display: inline-block;
  font: 600 12px/1 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  padding: 5px 8px;
  border-radius: 6px;
}
.pill.read { background: rgba(110, 168, 254, 0.16); color: var(--accent); }
.pill.write { background: rgba(76, 175, 126, 0.16); color: var(--ok); }

.facts { margin: 0; padding-left: 18px; }
.facts li { margin: 10px 0; }
.facts.compact li { margin: 6px 0; }
.facts strong { color: var(--ink); }

.contact a { font-weight: 600; }

footer {
  max-width: 820px;
  margin: 48px auto 56px;
  padding: 24px;
  border-top: 1px solid var(--line);
  color: var(--ink);
}
footer p { margin: 4px 0; }
.muted { color: var(--muted); font-size: 14px; }

@media (max-width: 640px) {
  .hero { padding-top: 40px; }
  .hero h1 { font-size: 40px; }
  .lead { font-size: 18px; }
  .scopes { grid-template-columns: 1fr; }
  .top { padding: 16px 20px; }
}