:root {
  --bg: #f7f7fb;
  --card: #fff;
  --text: #222;
  --muted: #666;
  --border: #e6e6ef;
  --accent: #2e7dff;
  --accent-2: #ff4d6d;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: system-ui, Arial, sans-serif; color: var(--text); background: var(--bg); }

.container { width: min(1100px, 92%); margin: 24px auto; }
.subtitle { color: var(--muted); margin-top: 4px; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; display: flex; flex-direction: column; gap: 8px; }
.card h3 { margin: 0; font-size: 1.05rem; }
.card .precio { color: var(--muted); }
.card .acciones { margin-top: 8px; display: flex; gap: 8px; align-items: center; }
.card input[type="number"] { width: 80px; padding: 6px 8px; border: 1px solid var(--border); border-radius: 8px; }

.table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.table th, .table td { padding: 12px; border-bottom: 1px solid var(--border); }
.table th { background: #fafafc; text-align: left; }
.table td.num, .table th.num { text-align: right; }
.table tr:last-child td { border-bottom: none; }
.table input[type="number"] { width: 80px; padding: 6px 8px; border: 1px solid var(--border); border-radius: 8px; }

.totales { margin-top: 12px; display: grid; gap: 4px; }
.totales .total { font-size: 1.1rem; }

.actions { margin-top: 16px; display: flex; gap: 12px; }

.btn { padding: 10px 14px; border-radius: 10px; border: 1px solid transparent; cursor: pointer; font-weight: 600; }
.btn.primario { background: var(--accent); color: white; }
.btn.secundario { background: white; border-color: var(--border); }
.btn.peligro { background: var(--accent-2); color: white; }

.mensajes { min-height: 20px; margin-bottom: 10px; color: var(--muted); }
.mensaje-ok { color: #0a7d31; }
.mensaje-error { color: #b00020; }