body {
    background: linear-gradient(135deg, #f8f5f5 0%, #e6e0e0 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.card {
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 8px 25px rgba(137, 44, 55, 0.15) !important;
    transform: translateY(-2px);
}

.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    background-color: #71252e !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(137, 44, 55, 0.2);
}

.form-control:focus {
    border-color: #892c37;
    box-shadow: 0 0 0 0.2rem rgba(137, 44, 55, 0.25);
}

.alert {
    border-radius: 8px;
}

/* Opcional: animación suave al cargar */
.container {
    animation: fadeIn 0.8s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}