:root { color-scheme: light; --ink: #0f172a; --muted: #55627a; --line: #e2e8f0; --accent: #0f172a; --ok: #15803d; --warn: #b45309; --err: #b91c1c; }
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body { font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--ink); background: #f8fafc; display: flex; align-items: center; justify-content: center; padding: 24px; -webkit-text-size-adjust: 100%; }
.card { width: 100%; max-width: 440px; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 28px 24px; box-shadow: 0 8px 30px rgba(15, 23, 42, 0.06); }
.brand { font-size: 12px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
h1 { font-size: 26px; line-height: 1.2; margin: 0 0 12px; }
.lead { margin: 0 0 20px; color: var(--ink); }
.hint { margin: 0 0 16px; padding: 12px; border-radius: 10px; background: #fff7ed; color: #7c2d12; font-size: 14px; }
.button { display: block; width: 100%; padding: 16px; border: 0; border-radius: 12px; background: var(--accent); color: #fff; font: inherit; font-weight: 600; font-size: 17px; text-align: center; text-decoration: none; cursor: pointer; }
.button:disabled { opacity: 0.55; cursor: default; }
.button--ghost { margin-top: 10px; background: #fff; color: var(--ink); border: 1px solid var(--line); }
.status { min-height: 1.5em; margin: 14px 0 0; font-size: 15px; color: var(--muted); }
.status--ok { color: var(--ok); }
.status--warn { color: var(--warn); }
.status--error { color: var(--err); }
.fine { margin: 18px 0 0; font-size: 13px; color: var(--muted); }
a { color: inherit; }
[hidden] { display: none !important; }