/* Estilos Premium - Sistema de Préstamos Personales */

/* Importar tipografía moderna */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* Variables CSS para Sistema de Diseño */
:root {
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    /* Colores - Tema Claro (Defectos) */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-surface: rgba(255, 255, 255, 0.7);
    --border-color: rgba(226, 232, 240, 0.8);
    --border-focus: #3b82f6;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    /* Brand Colors */
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: rgba(79, 70, 229, 0.1);
    
    --success: #10b981;
    --success-light: rgba(16, 185, 129, 0.1);
    --success-dark: #065f46;
    
    --accent: #f59e0b;
    --accent-light: rgba(245, 158, 11, 0.1);
    --accent-dark: #92400e;
    
    --danger: #ef4444;
    --danger-light: rgba(239, 68, 68, 0.1);
    
    /* Glassmorphism & Shadow */
    --glass-blur: blur(12px);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.06), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Tema Oscuro */
[data-theme="dark"] {
    --bg-primary: #0b0f19;
    --bg-secondary: #131b2e;
    --bg-surface: rgba(19, 27, 46, 0.7);
    --border-color: rgba(30, 41, 59, 0.7);
    
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: rgba(99, 102, 241, 0.15);
    
    --border-focus: #6366f1;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.35), 0 4px 6px -2px rgba(0, 0, 0, 0.25);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
}

/* Estilos de Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    scroll-behavior: smooth;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Contenedor Principal */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Estilo Glassmorphism Premium */
.sidebar {
    width: 280px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all var(--transition-normal);
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, #a855f7 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 1.25rem;
    box-shadow: 0 4px 10px rgba(79, 70, 229, 0.3);
}

.logo-text {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
    background: linear-gradient(to right, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item a {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.875rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-item a:hover {
    background-color: var(--primary-light);
    color: var(--primary);
}

.nav-item.active a {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.2);
}

.nav-item svg {
    width: 22px;
    height: 22px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}

/* User Card Sidebar */
.user-profile-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    margin-top: auto;
    border: 1px solid var(--border-color);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.user-info {
    overflow: hidden;
}

.user-name {
    font-weight: 600;
    font-size: 0.875rem;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Área de Contenido Principal */
.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 2.5rem;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

/* Encabezado */
.header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.page-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Botón Tema Oscuro */
.theme-toggle-btn {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
    background-color: var(--primary-light);
    color: var(--primary);
}

/* Botones Premium */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
}

.btn-secondary {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.btn-secondary:hover {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

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

.btn-success:hover {
    background-color: #059669;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.btn-whatsapp {
    background-color: #25d366;
    color: white;
}

.btn-whatsapp:hover {
    background-color: #20ba5a;
    box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
}

/* Tarjetas de Dashboard (Estilo Glassmorphism Moderno) */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.kpi-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.kpi-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.kpi-icon-container {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.kpi-icon-container svg {
    width: 28px;
    height: 28px;
}

.kpi-info {
    display: flex;
    flex-direction: column;
}

.kpi-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
}

.kpi-value {
    font-size: 1.75rem;
    font-weight: 700;
    margin-top: 0.25rem;
    letter-spacing: -0.5px;
}

/* Variaciones KPI */
.kpi-capital .kpi-icon-container {
    background-color: var(--success-light);
    color: var(--success);
}
.kpi-recuperado .kpi-icon-container {
    background-color: rgba(6, 182, 212, 0.15);
    color: #06b6d4;
}
.kpi-intereses .kpi-icon-container {
    background-color: var(--accent-light);
    color: var(--accent);
}
.kpi-clientes .kpi-icon-container {
    background-color: var(--primary-light);
    color: var(--primary);
}
.kpi-prestamos .kpi-icon-container {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

/* Grid Secundario (Gráficos / Listas) */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 700;
}

/* Tablas */
.table-container {
    overflow-x: auto;
    width: 100%;
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.custom-table th {
    padding: 1rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
    letter-spacing: 0.5px;
}

.custom-table td {
    padding: 1rem;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.custom-table tr:last-child td {
    border-bottom: none;
}

.custom-table tr:hover td {
    color: var(--text-primary);
    background-color: rgba(248, 250, 252, 0.5);
}
[data-theme="dark"] .custom-table tr:hover td {
    background-color: rgba(30, 41, 59, 0.2);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
}

.badge-success {
    background-color: var(--success-light);
    color: var(--success);
}

.badge-warning {
    background-color: var(--accent-light);
    color: var(--accent);
}

.badge-danger {
    background-color: var(--danger-light);
    color: var(--danger);
}

.badge-info {
    background-color: var(--primary-light);
    color: var(--primary);
}

/* Listas Especiales */
.alert-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    margin-bottom: 0.75rem;
    transition: all var(--transition-fast);
}

.alert-item.alert-normal {
    border-left: 4px solid var(--success);
}

.alert-item.alert-warning {
    border-left: 4px solid var(--accent);
}

.alert-item.alert-critical {
    border-left: 4px solid var(--danger);
    background-color: rgba(239, 68, 68, 0.02);
}

[data-theme="dark"] .alert-item.alert-critical {
    background-color: rgba(239, 68, 68, 0.04);
}

.alert-item:hover {
    border-color: var(--primary);
    transform: translateX(4px);
}

.alert-client {
    font-weight: 600;
    font-size: 0.875rem;
}

.alert-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.alert-amount {
    text-align: right;
}

.alert-value {
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--accent-dark);
}

[data-theme="dark"] .alert-value {
    color: var(--accent);
}

/* Formularios Premium */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--primary-light);
}

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

/* Modales (Glassmorphism con efectos) */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-container {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 540px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-container {
    transform: translateY(0);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* Vista Detalle Préstamo */
.loan-details-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 1.5rem;
}

.loan-meta-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.loan-meta-item {
    display: flex;
    justify-content: space-between;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.loan-meta-item:last-child {
    border-bottom: none;
}

.loan-meta-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.loan-meta-value {
    font-weight: 600;
    font-size: 0.875rem;
}

/* Sección Oculta por Defecto (SPA) */
.app-section {
    display: none;
    animation: fadeIn var(--transition-normal);
}

.app-section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Estilos de Simulación / Amortización */
.simulation-preview {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
}

.simulation-preview-title {
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
}

/* Notificaciones Toast */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    z-index: 2000;
}

.toast {
    background-color: var(--bg-secondary);
    border-left: 4px solid var(--primary);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-sm);
    padding: 1rem 1.5rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 300px;
    animation: slideInRight var(--transition-normal);
    transition: all var(--transition-normal);
}

.toast-success {
    border-left-color: var(--success);
}

.toast-error {
    border-left-color: var(--danger);
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ==========================================================================
   Estilos de Impresión / Formato Recibo PDF
   ========================================================================== */
@media print {
    body {
        background-color: white;
        color: black;
        font-size: 12pt;
    }
    
    .app-container, .sidebar, .header-bar, .btn, .theme-toggle-btn, .modal-overlay {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0 !important;
        padding: 0 !important;
    }
    
    .print-receipt-only {
        display: block !important;
        width: 100%;
        max-width: 80mm; /* Ancho de ticket de punto de venta típico */
        margin: 0 auto;
        padding: 10px;
        font-family: 'Courier New', Courier, monospace;
        border: none;
    }
}

/* Ticket en HTML */
.receipt-wrapper {
    background-color: white;
    color: #1e293b;
    max-width: 480px;
    margin: 2rem auto;
    padding: 2.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
}

.receipt-header {
    text-align: center;
    border-bottom: 2px dashed #e2e8f0;
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
}

.receipt-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: #4f46e5;
    margin-bottom: 0.5rem;
}

.receipt-meta {
    font-size: 0.875rem;
    color: #64748b;
}

.receipt-table {
    width: 100%;
    margin-bottom: 1.5rem;
}

.receipt-table td {
    padding: 0.5rem 0;
    font-size: 0.925rem;
}

.receipt-table tr.total-row td {
    font-weight: 700;
    font-size: 1.125rem;
    border-top: 1px solid #e2e8f0;
    padding-top: 0.75rem;
}

.receipt-footer {
    text-align: center;
    font-size: 0.8125rem;
    color: #64748b;
    border-top: 2px dashed #e2e8f0;
    padding-top: 1.5rem;
    margin-top: 1.5rem;
}

/* Responsividad General */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 80px;
        padding: 2rem 0.5rem;
        align-items: center;
    }
    
    .logo-text, .user-info, .nav-item span {
        display: none;
    }
    
    .nav-item a {
        justify-content: center;
        padding: 0.875rem;
    }
    
    .main-content {
        margin-left: 80px;
        padding: 1.5rem;
    }
    
    .header-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .loan-details-grid {
        grid-template-columns: 1fr;
    }
}

/* Footer Institucional */
.institutional-footer {
    margin-top: auto;
    padding-top: 2rem;
    padding-bottom: 0.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border-color);
    margin-left: -2.5rem;
    margin-right: -2.5rem;
    margin-bottom: -2.5rem;
    padding-left: 2.5rem;
    padding-right: 2.5rem;
    background-color: transparent;
}

.institutional-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.institutional-footer a:hover {
    color: var(--accent);
}

.footer-content {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.footer-brand {
    font-weight: 700;
    color: var(--text-color);
}

.footer-links {
    display: flex;
    justify-content: flex-end;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-top: 0;
}

.footer-links .support-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}