:root { color-scheme: dark; --bg: #111; --fg: #eee; --muted: #999; --ok: #1f8a3b; --warn: #b7791f; --bad: #b3261e; --accent: #c0392b; }
[hidden] { display: none !important; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 18px/1.4 system-ui, sans-serif; }
body.center { display: grid; place-items: center; min-height: 100vh; padding: 16px; }
.card { background: #1b1b1b; padding: 24px; border-radius: 12px; display: grid; gap: 12px; width: min(360px, 100%); }
input, button { font: inherit; padding: 12px 14px; border-radius: 10px; border: 1px solid #333; background: #222; color: var(--fg); }
button { cursor: pointer; }
button:disabled { opacity: 0.4; cursor: default; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 800; }
.card .logo { display: block; width: 214px; max-width: 100%; height: auto; margin: 0 auto 4px; }
.card h1 { margin: 0; font-size: 15px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; text-align: center; color: var(--muted); }
.err { color: #ff8a80; min-height: 1em; margin: 0; }
.row { display: flex; gap: 8px; flex-wrap: wrap; }