:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --text: #1c1d21;
  --muted: #5b5f6a;
  --line: #e6e3dc;
  --accent: #1f7a5a;
  --accent-ink: #ffffff;
  --accent-soft: #e4f2ec;
  --max: 1080px;
  --prose: 720px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121416;
    --surface: #1a1d20;
    --text: #ecebe7;
    --muted: #a3a7ae;
    --line: #2c3035;
    --accent: #4cc496;
    --accent-ink: #0d1f18;
    --accent-soft: #1b2e27;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

a { color: var(--accent); }
a:hover { text-decoration-thickness: 2px; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
}
.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  display: grid;
  place-items: center;
  font-size: 15px;
}
.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 15px;
}
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--text); }

.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}
.nav a.btn { color: var(--accent-ink); }
.btn:hover { filter: brightness(1.08); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}

/* Hero */
.hero { padding-block: 72px 56px; }
.hero h1 {
  font-size: clamp(32px, 6vw, 52px);
  line-height: 1.12;
  margin: 0 0 18px;
  max-width: 16ch;
  letter-spacing: -0.02em;
}
.hero p {
  font-size: clamp(17px, 2.2vw, 20px);
  color: var(--muted);
  max-width: 56ch;
  margin: 0 0 28px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.platforms {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 14px;
  color: var(--muted);
}

/* Sections */
section { padding: 48px 0; border-top: 1px solid var(--line); }
section h2 { font-size: 26px; margin: 0 0 24px; letter-spacing: -0.01em; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
}
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 16px; }

.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; }
.steps li {
  counter-increment: step;
  position: relative;
  padding: 0 0 18px 48px;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  display: grid;
  place-items: center;
}

/* Legal pages */
.legal { padding-block: 48px 64px; }
.legal .prose { max-width: var(--prose); }
.legal h1 { font-size: clamp(30px, 5vw, 40px); margin: 0 0 6px; letter-spacing: -0.02em; }
.legal .updated { color: var(--muted); margin: 0 0 32px; }
.legal h2 { font-size: 22px; margin: 36px 0 10px; }
.legal h3 { font-size: 18px; margin: 24px 0 8px; }
.legal ul { padding-left: 22px; }
.legal li { margin-bottom: 6px; }
.toc {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 20px;
  margin-bottom: 8px;
}
.toc ol { margin: 0; padding-left: 20px; columns: 2 220px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  color: var(--muted);
  font-size: 15px;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer a { color: var(--muted); }

@media (max-width: 560px) {
  .nav .nav-link { display: none; }
  .hero { padding-block: 48px 40px; }
}

.social { margin-top: 0; }
a.chip { text-decoration: none; }
a.chip:hover { color: var(--text); border-color: var(--accent); }