:root { color-scheme: light dark; --bg: #fafafa; --surface: #fff; --text: #242424; --muted: #626262; --line: #dedede; --accent: #e94e08; }
* { box-sizing: border-box; }
body { margin: 0; color: var(--text); background: var(--bg); font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
header { min-height: 76px; padding: 20px 32px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--line); background: var(--surface); }
.brand { font-size: 22px; font-weight: 700; } .brand span { font-weight: 400; color: var(--muted); }
.phase { color: var(--muted); font-size: 13px; }
main { max-width: 680px; padding: 48px 24px; margin: auto; }
h1 { font-size: 32px; line-height: 1.2; margin: 0 0 16px; } h2 { font-size: 20px; }
.intro { color: var(--muted); margin-bottom: 32px; }
label { display: block; font-weight: 600; margin-bottom: 8px; }
input { width: 100%; min-height: 48px; padding: 12px; border: 1px solid var(--line); border-radius: 6px; color: var(--text); background: var(--surface); font: inherit; }
button { min-height: 44px; margin-top: 16px; padding: 10px 20px; background: var(--accent); color: #fff; border: 0; border-radius: 6px; font: inherit; font-weight: 600; cursor: pointer; }
button:hover { filter: brightness(.94); } :focus-visible { outline: 3px solid #ff922b; outline-offset: 3px; }
dl { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 20px 0; border-block: 1px solid var(--line); }
dt { color: var(--muted); } dd { margin: 0; overflow-wrap: anywhere; }
.checks { padding: 0; list-style: none; margin: 32px 0; }
.checks li { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; border-bottom: 1px solid var(--line); padding: 16px 0; }
.checks li p { flex-basis: 100%; margin: 0; color: var(--muted); font-size: 14px; }
.ok { color: #14734b; } .failed { color: #ba2a2a; }
.notice { padding: 16px; border-left: 3px solid #ba2a2a; background: var(--surface); }
.secondary { background: var(--surface); color: var(--text); border: 1px solid var(--line); }
@media (max-width: 440px) { header { padding: 16px; flex-wrap: wrap; } main { padding: 32px 20px; } h1 { font-size: 28px; } dl { grid-template-columns: 1fr; gap: 4px; } dd { margin-bottom: 12px; } }
@media (prefers-color-scheme: dark) { :root { --bg: #181818; --surface: #222; --text: #f4f4f4; --muted: #b6b6b6; --line: #424242; } .ok { color: #6bd5a4; } .failed { color: #ff9e99; } }