:root {
  --ink: #0f1f1b;
  --muted: #55665f;
  --bg: #ffffff;
  --soft: #f2f7f5;
  --brand: #085041;
  --brand-ink: #ffffff;
  --line: #dde8e4;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #e8f1ee; --muted: #a6b8b1; --bg: #0b1715; --soft: #04342c; --brand: #5dcaa5; --brand-ink: #04342c; --line: #1d3a33; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--ink); background: var(--bg); }
a { color: var(--brand); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
.top { border-bottom: 1px solid var(--line); }
.top-row { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; gap: 10px; align-items: center; font-weight: 700; font-size: 20px; color: var(--ink); text-decoration: none; }
nav { display: flex; gap: 20px; align-items: center; }
nav a { text-decoration: none; color: var(--ink); }
.btn { display: inline-block; padding: 12px 20px; border-radius: 10px; background: var(--brand); color: var(--brand-ink) !important; text-decoration: none; font-weight: 600; border: 2px solid var(--brand); }
.btn-ghost { background: transparent; color: var(--brand) !important; }
.btn-small { padding: 6px 14px; }
.btn[aria-disabled="true"] { opacity: .45; pointer-events: none; }
.hero { background: var(--soft); padding: 88px 0 72px; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: 13px; color: var(--brand); font-weight: 700; margin: 0; }
h1 { font-size: clamp(32px, 6vw, 56px); line-height: 1.1; margin: 12px 0 16px; max-width: 16ch; }
.lead { font-size: 19px; color: var(--muted); max-width: 60ch; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; padding-top: 64px; padding-bottom: 64px; }
.features h2 { font-size: 18px; margin: 0 0 6px; }
.features p { margin: 0; color: var(--muted); }
.download { background: var(--soft); padding: 64px 0; }
.download h2 { font-size: 32px; margin: 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; margin: 24px 0; }
.card { background: var(--bg); border: 1px solid var(--line); border-radius: 14px; padding: 20px; display: flex; flex-direction: column; gap: 8px; }
.card h3 { margin: 0; }
.card p { margin: 0 0 8px; color: var(--muted); font-size: 15px; flex: 1; }
.links { display: flex; flex-direction: column; gap: 8px; }
.links .btn { text-align: center; }
.sum { font: 11px/1.3 ui-monospace, monospace; color: var(--muted); word-break: break-all; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.foot { display: flex; gap: 10px; align-items: center; padding: 32px 16px; color: var(--muted); font-size: 14px; }
@media (max-width: 560px) { nav a:not(.btn) { display: none; } }