:root {
  --bg: #0f1419;
  --card: #1a2332;
  --text: #e8eef7;
  --muted: #8b9cb3;
  --accent: #3d8bfd;
  --err: #ff6b6b;
  --border: #2a3548;
  font-family: "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }
.top { padding: 1rem 1.5rem; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; }
.muted { color: var(--muted); font-size: 0.9rem; }
.grid { display: grid; gap: 1rem; padding: 1.5rem; grid-template-columns: 1fr 1fr; }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 1.25rem; }
.card.wide { margin: 1.5rem; max-width: 1100px; }
.center { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login { width: min(360px, 92vw); display: flex; flex-direction: column; gap: 0.6rem; }
label { font-size: 0.85rem; color: var(--muted); margin-top: 0.5rem; }
input[type="text"], input[type="password"], input[type="file"] { width: 100%; padding: 0.55rem 0.65rem; border-radius: 8px; border: 1px solid var(--border); background: #0d121a; color: var(--text); }
button { margin-top: 0.75rem; padding: 0.65rem 1rem; border: none; border-radius: 8px; background: var(--accent); color: #fff; font-weight: 600; cursor: pointer; }
button:hover { filter: brightness(1.08); }
.err { color: var(--err); min-height: 1.2em; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 0.45rem 0.35rem; border-bottom: 1px solid var(--border); }
.log { background: #0a0e14; border: 1px solid var(--border); border-radius: 8px; padding: 1rem; min-height: 280px; max-height: 60vh; overflow: auto; font-size: 0.8rem; white-space: pre-wrap; }