:root { --bg: #0b1424; --text: #eef2f8; --muted: #9fb0c8; --yellow: #f6c21c; color-scheme: dark; }
* { box-sizing: border-box; }
html, body { margin: 0; background: radial-gradient(1200px 600px at 50% -10%, #1d3459 0%, var(--bg) 60%) fixed, var(--bg); color: var(--text); }
body { font-family: "Cairo", "Segoe UI", Tahoma, sans-serif; min-height: 100vh; display: flex; flex-direction: column; }
.hero { flex: 1; max-width: 680px; margin: 0 auto; padding: 48px 16px 24px; text-align: center; }
.logo { font-size: 64px; }
h1 { font-size: clamp(36px, 9vw, 60px); font-weight: 900; margin: 8px 0 12px; color: var(--yellow); line-height: 1.1; }
h1 span { display: block; font-size: .42em; color: var(--text); font-weight: 700; margin-top: 6px; }
.lead { font-size: 18px; line-height: 1.8; color: #d9e2ef; }
.facts { list-style: none; padding: 0; margin: 20px 0 28px; display: grid; gap: 8px; color: var(--muted); }
.facts li::before { content: "● "; color: var(--yellow); }
.download { display: inline-block; background: var(--yellow); color: #1b1400; font-weight: 900; font-size: 20px; padding: 14px 34px; border-radius: 14px; text-decoration: none; box-shadow: 0 8px 26px rgba(246, 194, 28, .25); }
.download.disabled { background: #33415a; color: var(--muted); box-shadow: none; pointer-events: none; }
.meta { color: var(--muted); margin: 12px 0 0; }
.sha { display: block; font-family: ui-monospace, Consolas, monospace; font-size: 11px; direction: ltr; word-break: break-all; margin-top: 4px; }
.note { color: var(--muted); font-size: 14px; margin-top: 22px; }
footer { text-align: center; color: var(--muted); padding: 18px; font-size: 13px; }
footer a { color: var(--muted); }