:root {
    --primary-color: #0d6efd;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --dark-color: #212529;
}

body {
    background-color: #f8f9fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.container, .container-fluid {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

h1 {
    color: var(--dark-color);
    font-weight: 600;
    margin-bottom: 20px;
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 10px;
}

.table {
    margin-top: 20px;
}

.table thead {
    background-color: var(--dark-color);
    color: white;
}

.table tbody tr:hover {
    background-color: #f8f9fa;
    cursor: pointer;
}

.btn {
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
}

.card {
    border: none;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border-radius: 8px;
}

.card-body {
    padding: 30px;
}

.alert {
    border: none;
    border-radius: 6px;
    margin-bottom: 20px;
}

.modal-content {
    border-radius: 8px;
    border: none;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.form-control {
    border-radius: 6px;
    border: 1px solid #dee2e6;
    padding: 10px 12px;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Filas deshabilitadas (sin DNI) */
tr.disabled-row {
    opacity: 0.6;
    background-color: #f0f0f0 !important;
    pointer-events: none;
}

tr.disabled-row td {
    color: #999;
}

tr.disabled-row .afiliado-checkbox {
    cursor: not-allowed;
    pointer-events: auto;
}

.nav-link {
    color: rgba(255, 255, 255, 0.7) !important;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: white !important;
}

footer {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #dee2e6;
    text-align: center;
    color: #6c757d;
    font-size: 14px;
}