:root {
    --color-primario: #0056b3;
    --color-acento: #003d7a;
    --color-blanco: #ffffff;
    --color-texto: #333333;
    --color-texto-claro: #666666;
    --color-exito: #28a745;
    --color-error: #dc3545;
    --color-info: #17a2b8;
    --radio-borde: 8px;
    --espaciado-md: 15px;
    --espaciado-lg: 25px;
    --sombra-media: 0 4px 15px rgba(0,0,0,0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #e8f4fd 0%, #d4e8f5 100%);
    min-height: 100vh;
    padding: 30px 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
}

.header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: white;
    border-radius: var(--radio-borde);
    box-shadow: var(--sombra-media);
}

.header h1 {
    color: var(--color-primario);
    font-size: 28px;
    margin-bottom: 5px;
}

.header p {
    color: var(--color-texto-claro);
    font-size: 14px;
}

.card {
    background: white;
    border-radius: var(--radio-borde);
    box-shadow: var(--sombra-media);
    padding: 30px;
    margin-bottom: 20px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e9ecef;
}

.card-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-primario);
}

.card-title i {
    margin-right: 10px;
}

/* Alertas */
.alerta {
    padding: 12px 20px;
    border-radius: var(--radio-borde);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideDown 0.5s ease;
}

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

.alerta-exito {
    background-color: #d4edda;
    color: #155724;
    border-left: 4px solid var(--color-exito);
}

.alerta-error {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid var(--color-error);
}

.alerta-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border-left: 4px solid var(--color-info);
}

.alerta i {
    font-size: 20px;
}

/* Formulario */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 5px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    font-size: 13px;
    color: var(--color-texto);
}

.form-group label .required {
    color: var(--color-error);
    margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #dde1e6;
    border-radius: 5px;
    font-size: 14px;
    transition: all 0.3s;
    background-color: #fafbfc;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primario);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.1);
    background-color: white;
}

.form-group input:read-only {
    background-color: #e9ecef;
    cursor: not-allowed;
}

.form-group .input-group {
    display: flex;
    gap: 10px;
}

.form-group .input-group input {
    flex: 1;
}

.section-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primario);
    margin: 25px 0 15px 0;
    padding-bottom: 8px;
    border-bottom: 2px solid #e9ecef;
}

.section-title i {
    margin-right: 8px;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-primario {
    background-color: var(--color-primario);
    color: white;
}

.btn-primario:hover {
    background-color: var(--color-acento);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 86, 179, 0.3);
}

.btn-secundario {
    background-color: #6c757d;
    color: white;
}

.btn-secundario:hover {
    background-color: #5a6268;
}

.btn-exito {
    background-color: var(--color-exito);
    color: white;
}

.btn-exito:hover {
    background-color: #218838;
}

.btn-info {
    background-color: var(--color-info);
    color: white;
}

.btn-info:hover {
    background-color: #138496;
}

.btn-eliminar {
    background-color: var(--color-error);
    color: white;
}

.btn-eliminar:hover {
    background-color: #c82333;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 12px;
}

.btn-group {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    justify-content: flex-end;
}

/* Badge */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-exito {
    background-color: #d4edda;
    color: #155724;
}

.badge-info {
    background-color: #d1ecf1;
    color: #0c5460;
}

.badge-warning {
    background-color: #fff3cd;
    color: #856404;
}

/* Acciones r�pidas */
.acciones-rapidas {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    align-items: center;
}

.buscar-dni {
    display: flex;
    gap: 10px;
    align-items: center;
    flex: 1;
    max-width: 400px;
}

.buscar-dni input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #dde1e6;
    border-radius: 5px;
    font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
    .form-grid,
    .form-grid-3 {
        grid-template-columns: 1fr;
    }

    .card {
        padding: 20px;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-group .btn {
        width: 100%;
        justify-content: center;
    }

    .acciones-rapidas {
        flex-direction: column;
        align-items: stretch;
    }

    .buscar-dni {
        max-width: 100%;
    }
}

/* Estilos para el spinner */
.fa-spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Tooltip */
.help-text {
    font-size: 12px;
    color: var(--color-texto-claro);
    margin-top: 4px;
}