* { box-sizing: border-box; margin: 0; padding: 0; font-family: sans-serif; }
body { background: #f0f2f5; padding-bottom: 100px; }
header { background: #2c3e50; color: white; padding: 15px; text-align: center; border-bottom: 5px solid #e67e22; }

.tab-nav { display: flex; background: white; position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
.tab-link { flex: 1; padding: 15px; border: none; background: none; font-weight: bold; cursor: pointer; color: #666; font-size: 0.8rem; }
.tab-link.active { color: #e67e22; border-bottom: 4px solid #e67e22; }

.tab-content { padding: 15px; }

.table-container { background: white; overflow-x: auto; border-radius: 8px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
table { width: 100%; border-collapse: collapse; min-width: 950px; }
th { background: #f8f9fa; padding: 10px; border: 1px solid #ddd; font-size: 0.75rem; }
td { padding: 5px; border: 1px solid #ddd; text-align: center; font-size: 0.85rem; }

.acc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; min-width: 220px; font-size: 0.65rem; text-align: left; }
.acc-line { display: flex; justify-content: space-between; align-items: center; background: #eee; padding: 2px 5px; border-radius: 2px; }
.btn-q { width: 18px; border: 1px solid #999; background: white; cursor: pointer; font-weight: bold; }

input[type="text"], input[type="number"] { width: 100%; padding: 5px; border: 1px solid #ccc; border-radius: 4px; text-align: center; }

.footer-btns { position: fixed; bottom: 0; width: 100%; background: white; display: flex; gap: 10px; padding: 15px; border-top: 1px solid #ddd; }
.btn-negro { background: #2c3e50; color: white; padding: 12px; border: none; border-radius: 5px; cursor: pointer; font-weight: bold; flex: 1; }
.btn-naranja { background: #e67e22; color: white; padding: 12px; border: none; border-radius: 5px; cursor: pointer; font-weight: bold; flex: 1; }

.card-carga { background: white; padding: 15px; border: 2px dashed #e67e22; border-radius: 8px; margin-bottom: 20px; }
.botonera-docs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.btn-doc-item { background: #34495e; color: white; border: none; padding: 15px; border-radius: 5px; font-weight: bold; cursor: pointer; text-align: left; }