:root {
  --bg: #0f172a;
  --card: #111827;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --primary: #3b82f6;
  --danger: #ef4444;
  --border: #1f2937;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial; background: var(--bg); color: var(--text); }
.container { max-width: 960px; margin: 0 auto; padding: 16px; }
.container.small { max-width: 420px; }
h1 { font-size: 1.5rem; margin: 12px 0 16px; }
h2 { font-size: 1.2rem; margin: 24px 0 8px; }
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
label { font-size: 0.9rem; color: var(--muted); }
input, select { width: 100%; padding: 12px; border-radius: 10px; border: 1px solid var(--border); background: #0b1220; color: var(--text); }
.buttons { display: flex; gap: 10px; }
button { padding: 12px 16px; border: none; border-radius: 10px; background: #334155; color: var(--text); font-weight: 600; }
button.primary { background: var(--primary); }
button.danger { background: var(--danger); }
button:disabled { opacity: 0.6; }
.alert { background: #7f1d1d; color: #fecaca; padding: 12px; border-radius: 10px; margin-bottom: 12px; }
.header { display: flex; align-items: center; justify-content: space-between; }
.link { color: var(--primary); text-decoration: none; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; margin-bottom: 12px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 12px; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { border-bottom: 1px solid var(--border); padding: 8px; text-align: left; font-size: 0.95rem; }
.table th { color: var(--muted); font-weight: 600; }

@media (max-width: 600px) {
  .buttons { flex-direction: column; }
}