.kanban-container {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    padding: 1rem 0;
    min-height: calc(100vh - 200px);
}

.kanban-column {
    flex: 1;
    min-width: 300px;
    background: #ecf0f1;
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
}

.column-header {
    background: #34495e;
    color: white;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    font-weight: bold;
    text-align: center;
}

.column-header.pendiente-revision { background: #95a5a6; }
.column-header.en-revision { background: #f39c12; }
.column-header.pendiente-materiales { background: #e74c3c; }
.column-header.completado { background: #27ae60; }

.card {
    background: white;
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.card.urgente {
    border-left: 4px solid #e74c3c;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.card-title {
    font-weight: bold;
    font-size: 1.1rem;
}

.card-subtitle {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.urgente-badge {
    background: #e74c3c;
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: bold;
}

.referencias-list {
    margin-top: 0.5rem;
}

.referencia-item {
    padding: 0.5rem;
    margin: 0.25rem 0;
    border-radius: 4px;
    font-size: 0.9rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.referencia-item.completo {
    background: #d5f4e6;
    color: #27ae60;
}

.referencia-item.parcial {
    background: #fff3cd;
    color: #856404;
}

.referencia-item.pendiente {
    background: #f8d7da;
    color: #721c24;
}

.referencia-codigo {
    font-weight: bold;
    font-family: monospace;
}

.filters {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.filter-input {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.9rem;
}

.refresh-btn {
    margin-left: auto;
}

.empty-column {
    text-align: center;
    color: #95a5a6;
    padding: 2rem;
    font-style: italic;
}