:root {
  color-scheme: dark;
  --bg: #0b1220;
  --panel: #121a2b;
  --text: #e6ecf5;
  --muted: #8899b0;
  --accent: #4aa8ff;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text); font: 15px/1.4 system-ui, -apple-system, Segoe UI, sans-serif; }
.auth-shell { min-height: 100%; display: grid; place-items: center; padding: 24px; }
header { text-align: center; margin-bottom: 24px; }
header h1 { margin: 0 0 4px; font-size: 22px; }
.subtitle { color: var(--muted); margin: 0; font-size: 13px; }
.auth-card { background: var(--panel); border-radius: 12px; padding: 24px; width: min(360px, 100%); box-shadow: 0 8px 24px rgba(0,0,0,0.4); }
.auth-card h2 { margin: 0 0 16px; font-size: 18px; }
label { display: block; margin-bottom: 12px; font-size: 13px; color: var(--muted); }
input { display: block; width: 100%; margin-top: 4px; padding: 10px 12px; background: #0b1220; color: var(--text); border: 1px solid #223049; border-radius: 8px; font: inherit; }
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
button { width: 100%; padding: 10px 12px; margin-top: 4px; background: var(--accent); color: #001428; border: 0; border-radius: 8px; font-weight: 600; cursor: pointer; }
button:hover { filter: brightness(1.05); }
.status { margin: 12px 0 0; color: var(--muted); font-size: 12px; }