:root { --bg: #f2f5f8; --surface: #fff; --text: #14212b; --muted: #55636f; --border: #d9e1e8; --primary: #0b6e79; --primary-soft: #e2f1f2; --warn-bg: #fff3d6; --warn: #7a5300; color-scheme: light; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #0d151c; --surface: #141f28; --text: #e6edf2; --muted: #9fb0bd; --border: #26343f; --primary: #4fc3cc; --primary-soft: #133238; --warn-bg: #3a2c09; --warn: #f2c66b; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: var(--bg); color: var(--text); font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.preview { background: var(--warn-bg); color: var(--warn); padding: 8px 16px; font-size: 13px; text-align: center; }
.wrap { max-width: 760px; margin: 0 auto; padding: 48px 16px 32px; }
.brand { display: flex; align-items: center; gap: 16px; }
.brand h1 { margin: 0; font-size: 28px; }
.brand p { margin: 0; color: var(--muted); font-weight: 600; }
.lead { color: var(--muted); margin: 20px 0 24px; }
.choices { display: grid; gap: 12px; }
.choice { display: flex; align-items: center; gap: 16px; padding: 18px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); color: inherit; text-decoration: none; }
a.choice:hover, a.choice:focus-visible { border-color: var(--primary); outline: none; box-shadow: 0 0 0 3px var(--primary-soft); }
.choice.primary .choice-icon { background: var(--primary); color: #fff; }
.choice-icon { width: 52px; height: 52px; border-radius: 12px; flex: none; display: inline-flex; align-items: center; justify-content: center; background: var(--primary-soft); color: var(--primary); }
.choice-text { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.choice-text strong { font-size: 17px; }
.choice-text span { color: var(--muted); font-size: 14px; }
.chev { font-size: 28px; color: var(--muted); }
.release { margin-top: 16px; padding: 18px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); }
.release h2 { margin: 0 0 12px; font-size: 18px; }
.release h3 { font-size: 15px; margin: 14px 0 4px; }
.release dl { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px 16px; margin: 0; }
.release dl .wide { grid-column: 1 / -1; }
.release dt { color: var(--muted); font-size: 12.5px; }
.release dd { margin: 0; font-weight: 600; word-break: break-all; }
.release code { font-size: 12.5px; }
.release p { white-space: pre-line; }
.verify { color: var(--muted); font-size: 13px; }
button { font: inherit; font-size: 12.5px; padding: 2px 10px; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: inherit; cursor: pointer; }
.download { display: inline-block; margin-top: 6px; padding: 10px 18px; border-radius: 10px; background: var(--primary); color: #fff; font-weight: 700; text-decoration: none; }
footer { margin-top: 32px; color: var(--muted); font-size: 13px; }