/* ============================================================
   GESTIÓN DE CLIENTES - ESTILOS
   ============================================================ */

:root {
    --primary-color: #102a43;
    --primary-light: #1a4d6b;
    --secondary-color: #0096d6;
    --success-color: #0cce6b;
    --danger-color: #ff5757;
    --warning-color: #ffd60a;
    --light-bg: #f8fafc;
    --light-border: #e2e8f0;
    --dark-text: #1a202c;
    --light-text: #64748b;
    --shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
}

/* Contenedor General */
.container-clientes {
    min-height: 100vh;
    background: linear-gradient(135deg, #f4f5f6 0%, #e9ecef 100%);
}

/* Hero Section */
.hero-clientes {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    padding: 4rem 2rem;
    text-align: center;
    box-shadow: var(--shadow);
}

.hero-content h1 {
    font-size: 2.5rem;
    margin: 0 0 0.5rem 0;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.hero-content p {
    font-size: 1.1rem;
    opacity: 0.95;
    margin: 0;
}

.hero-content i {
    font-size: 2.8rem;
}

/* Header Override */
header {
    background: rgba(255, 255, 255, 0.94) !important;
    border-bottom: 2px solid var(--light-border) !important;
}

.nav-links a.active {
    color: var(--secondary-color);
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 6px;
}

/* Main */
.main-clientes {
    max-width: 1400px;
    margin: -2rem auto 2rem;
    padding: 0 1rem 2rem;
    position: relative;
    z-index: 10;
}

/* Alertas */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideDown 0.3s ease;
    border-left: 5px solid;
    box-shadow: var(--shadow-sm);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-left-color: var(--success-color);
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border-left-color: var(--danger-color);
}

.alert-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    margin-left: auto;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.alert-close:hover {
    opacity: 1;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 10px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-color) 100%);
}

.btn-secondary {
    background-color: var(--light-bg);
    color: var(--dark-text);
    border: 1px solid var(--light-border);
}

.btn-secondary:hover {
    background-color: #e2e8f0;
    border-color: #cbd5e1;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.2rem;
    height: 2.2rem;
    padding: 0;
    border-radius: 8px;
    background-color: var(--light-bg);
    color: var(--secondary-color);
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid var(--light-border);
    font-size: 1rem;
}

.btn-icon:hover {
    background-color: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
    transform: scale(1.08);
}

.btn-icon.btn-danger {
    color: var(--danger-color);
}

.btn-icon.btn-danger:hover {
    background-color: var(--danger-color);
    color: white;
    border-color: var(--danger-color);
}

/* Sección de Lista */
.clientes-list-section {
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: 2rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--light-bg);
    padding-bottom: 1.5rem;
}

.section-header h2 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

/* Búsqueda y Filtros */
.search-filter-box {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
}

.search-input,
.filter-select {
    padding: 0.875rem 1.25rem;
    border: 1px solid var(--light-border);
    border-radius: 10px;
    font-size: 0.95rem;
    font-family: inherit;
    background: white;
    transition: all 0.2s ease;
}

.search-input:focus,
.filter-select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(0, 150, 214, 0.1);
}

.search-input::placeholder {
    color: var(--light-text);
}

/* Tabla */
.table-responsive {
    overflow-x: auto;
    margin: 0;
}

.clientes-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.clientes-table thead {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
}

.clientes-table th {
    padding: 1.25rem;
    text-align: left;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.clientes-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--light-bg);
}

.clientes-table tbody tr {
    transition: all 0.2s ease;
}

.clientes-table tbody tr:hover {
    background-color: #f8fafc;
    box-shadow: inset 0 0 0 1px var(--light-border);
}

.clientes-table .acciones {
    display: flex;
    gap: 0.5rem;
}

.badge {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #0077a3 100%);
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Estado vacío */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--light-text);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    color: var(--light-border);
    opacity: 0.7;
}

.empty-state p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--dark-text);
}

/* Sección de Formulario */
.cliente-form-section {
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: 2.5rem;
}

.form-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    border-bottom: 2px solid var(--light-bg);
    padding-bottom: 1.5rem;
}

.form-header h2 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

.cliente-form {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

/* Secciones del Formulario */
.form-section {
    border: 1px solid var(--light-border);
    border-radius: 12px;
    padding: 2rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    transition: all 0.2s ease;
}

.form-section:hover {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(0, 150, 214, 0.05);
}

.form-section legend {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary-color);
    padding: 0 1rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.form-section legend:before {
    content: '';
    width: 4px;
    height: 24px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #0096d6 100%);
    border-radius: 2px;
}

/* Filas del Formulario */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 1rem;
}

.form-row.full-width {
    grid-template-columns: 1fr;
}

/* Grupos de Formulario */
.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    border: 2px solid var(--light-border);
    border-radius: 10px;
    font-size: 0.95rem;
    font-family: inherit;
    transition: all 0.2s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(0, 150, 214, 0.1);
    background: #f8fafc;
}

.form-group input:disabled,
.form-group select:disabled {
    background-color: var(--light-bg);
    cursor: not-allowed;
    color: var(--light-text);
    border-color: var(--light-border);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--light-text);
}

/* Acciones del Formulario */
.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 2px solid var(--light-bg);
    flex-wrap: wrap;
}

.form-actions .btn {
    flex: 1;
    min-width: 150px;
    justify-content: center;
}

/* Vista de Detalle */
.cliente-view-section {
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: 2.5rem;
}

.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    border-bottom: 2px solid var(--light-bg);
    padding-bottom: 1.5rem;
}

.view-header h2 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

.view-actions {
    display: flex;
    gap: 1rem;
}

.client-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.detail-section {
    padding: 2rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 1px solid var(--light-border);
    border-radius: 12px;
    transition: all 0.2s ease;
}

.detail-section:hover {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(0, 150, 214, 0.05);
}

.detail-section h3 {
    margin: 0 0 1.5rem 0;
    font-size: 1.15rem;
    color: white;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    padding: 0.875rem 1.25rem;
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
}

.detail-row {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 2rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--light-border);
    align-items: start;
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-row .label {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.detail-row .value {
    color: var(--dark-text);
    word-break: break-word;
}

.detail-row a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
}

.detail-row a:hover {
    color: var(--primary-light);
    gap: 0.75rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .search-filter-box {
        grid-template-columns: 1fr 1fr;
    }

    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .hero-clientes {
        padding: 2.5rem 1rem;
    }

    .hero-content h1 {
        font-size: 1.75rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

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

    .search-filter-box {
        grid-template-columns: 1fr;
    }

    .clientes-table {
        font-size: 0.85rem;
    }

    .clientes-table th,
    .clientes-table td {
        padding: 0.75rem 0.5rem;
    }

    .clientes-table .acciones {
        flex-direction: column;
    }

    .cliente-form-section,
    .clientes-list-section,
    .cliente-view-section {
        padding: 1.5rem;
    }

    .form-section {
        padding: 1.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
        min-width: unset;
    }

    .view-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

    .view-actions {
        width: 100%;
        flex-wrap: wrap;
    }

    .view-actions .btn {
        flex: 1;
        min-width: 120px;
        justify-content: center;
    }

    .detail-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .main-clientes {
        padding: 0 0.5rem 1rem;
        margin: -1.5rem auto 1rem;
    }

    .hero-clientes {
        padding: 2rem 1rem;
    }

    .hero-content h1 {
        font-size: 1.5rem;
        gap: 0.5rem;
    }

    .hero-content i {
        font-size: 2rem;
    }

    .cliente-form-section,
    .clientes-list-section,
    .cliente-view-section {
        padding: 1rem;
        border-radius: 12px;
    }

    .form-section {
        padding: 1rem;
    }

    .btn {
        padding: 0.65rem 1rem;
        font-size: 0.85rem;
    }

    .section-header h2,
    .form-header h2,
    .view-header h2 {
        font-size: 1.25rem;
    }

    .clientes-table {
        font-size: 0.75rem;
    }

    .detail-row {
        gap: 0.25rem;
    }

    .detail-row .label {
        font-size: 0.8rem;
    }
}