/**
 * Sistema de Gestión Financiera Personal
 * Diseño Minimalista - COMPATIBLE con código original
 * 
 * ⚠️ IMPORTANTE: Este CSS es 100% compatible con:
 * - Todos los IDs del HTML original
 * - Todas las clases existentes
 * - Todas las funciones JavaScript
 * - No rompe ninguna funcionalidad
 */

/* ========== Variables CSS (Compatibles) ========== */
:root {
    /* Colores Principales */
    --color-primary: #4f46e5;
    --color-primary-dark: #4338ca;
    --color-primary-light: #6366f1;
    
    /* Colores de Estado */
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;
    --color-info: #3b82f6;
    
    /* Grises */
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Radios */
    --radius: 0.75rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;
    
    /* Transición */
    --transition: 200ms ease;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(to br, #f9fafb, #f3f4f6);
    color: var(--color-gray-900);
    line-height: 1.6;
    padding: 1rem;
    min-height: 100vh;
}

/* Para compatibilidad con tema anterior */
body.theme-minimal {
    background: linear-gradient(to br, #f9fafb, #f3f4f6);
}

/* ========== Container ========== */
.container {
    max-width: 1280px;
    margin: 0 auto;
}

/* ========== Header ========== */
.header {
    background: white;
    border-radius: var(--radius-lg);
    padding: 1.5rem 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gray-900);
}

.subtitle-header {
    display: block;
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-gray-500);
    margin-top: 0.25rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-name {
    font-weight: 600;
    color: var(--color-gray-900);
}

.user-email {
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

.btn-profile,
.btn-logout {
    padding: 0.5rem 1rem;
    background: var(--color-gray-100);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}
#alertaGlobal {
    display: none;
    align-items: center;
    gap: 0.5rem;
}

#alertaGlobal.active {
    display: flex;
}

#alertaGlobal .alert-icon i {
    margin-right: 0.25rem;
}

.btn-logout {
    background: #fee2e2;
    border-color: #fecaca;
    color: #991b1b;
}

.btn-profile:hover {
    background: var(--color-gray-200);
}

.btn-logout:hover {
    background: #fecaca;
}

/* ========== Alerta Global ========== */
#alertaGlobal {
    padding: 0.875rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    display: none;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
}

#alertaGlobal.active {
    display: flex;
}

/* ========== Navigation ========== */
.nav-tabs {
    display: flex;
    gap: 0.5rem;
    background: white;
    border-radius: var(--radius-lg);
    padding: 0.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
    overflow-x: auto;
    scrollbar-width: none;
}

.nav-tabs::-webkit-scrollbar {
    display: none;
}

.nav-tab {
    flex: 1;
    min-width: 100px;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-600);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.nav-tab:hover {
    background: var(--color-gray-50);
    color: var(--color-gray-900);
}

.nav-tab.active {
    background: var(--color-primary);
    color: white;
}

/* ========== Content ========== */
.content {
    animation: fadeIn 0.3s;
}

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-content h2 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
}

.tab-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-gray-800);
    margin: 2rem 0 1rem;
}

.tab-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-700);
    margin: 1.5rem 0 1rem;
}

.text-muted {
    color: var(--color-gray-500);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

/* ========== Cards ========== */
.card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

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

/* Dashboard Cards */
.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.dashboard-cards .card {
    padding: 1.25rem;
}

.dashboard-cards .card h3 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-600);
    margin: 0 0 0.75rem;
}

.dashboard-cards .card .amount {
    font-size: 2rem;
    font-weight: 700;
    margin: 0.5rem 0;
}

.dashboard-cards .card .subtitle {
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

/* Card Colors - IMPORTANTES: No cambiar nombres */
.card.positive {
    border-left: 4px solid var(--color-success);
    background: linear-gradient(to right, rgba(16, 185, 129, 0.05), white);
}

.card.positive .amount {
    color: var(--color-success);
}

.card.negative {
    border-left: 4px solid var(--color-danger);
    background: linear-gradient(to right, rgba(239, 68, 68, 0.05), white);
}

.card.negative .amount {
    color: var(--color-danger);
}

.card.warning {
    border-left: 4px solid var(--color-warning);
    background: linear-gradient(to right, rgba(245, 158, 11, 0.05), white);
}

.card.warning .amount {
    color: var(--color-warning);
}

.card.info {
    border-left: 4px solid var(--color-info);
    background: linear-gradient(to right, rgba(59, 130, 246, 0.05), white);
}

.card.info .amount {
    color: var(--color-info);
}

/* ========== Forms ========== */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: 0.375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius);
    font-size: 0.9375rem;
    font-family: inherit;
    background: white;
    color: var(--color-gray-900);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* ========== Buttons - IMPORTANTES: No cambiar nombres ========== */
.btn {
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

.btn-primary:hover,
.btn-save:hover,
.btn-add:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--color-gray-600);
    color: white;
}

.btn-secondary:hover {
    background: var(--color-gray-700);
}

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

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

.btn-light {
    background: white;
    color: var(--color-gray-700);
    border: 1px solid var(--color-gray-300);
}

.btn:active {
    transform: scale(0.98);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-sm {
    padding: 0.375rem 0.875rem;
    font-size: 0.8125rem;
}

.btn-group {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

/* ========== Tables ========== */
table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-top: 1rem;
}

thead {
    background: var(--color-gray-50);
}

th {
    padding: 0.875rem 1rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-gray-700);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

td {
    padding: 0.875rem 1rem;
    border-top: 1px solid var(--color-gray-200);
    font-size: 0.875rem;
}

tbody tr {
    transition: var(--transition);
}

tbody tr:hover {
    background: var(--color-gray-50);
}

/* ========== Alerts - IMPORTANTES ========== */
.alert {
    padding: 0.875rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    display: none;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.alert.active {
    display: flex;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border-left: 3px solid var(--color-success);
}

.alert-danger {
    background: #fee2e2;
    color: #991b1b;
    border-left: 3px solid var(--color-danger);
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border-left: 3px solid var(--color-warning);
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border-left: 3px solid var(--color-info);
}

/* ========== Empty State ========== */
.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--color-gray-300);
    color: var(--color-gray-500);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state p:first-of-type {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: 0.5rem;
}

/* ========== Listas - IDs IMPORTANTES ========== */
#listaIngresos,
#listaGastos,
#listaCreditos,
#listaIngresosFijos,
#listaGastosFijos,
#contenidoReportes,
#estadisticasPerfil {
    /* Contenedores dinámicos - sin estilos que rompan JS */
}

/* ========== CRÉDITOS - Sección Mejorada ========== */
.credit-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--color-primary);
}

.credit-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.credit-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-gray-900);
}

.credit-badge {
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.credit-badge.activo {
    background: #d1fae5;
    color: #065f46;
}

.credit-badge.inactivo {
    background: #fee2e2;
    color: #991b1b;
}

.credit-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.credit-amount {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-danger);
    margin: 1rem 0;
}

.credit-progress {
    margin: 1rem 0;
}

.progress-bar {
    height: 8px;
    background: var(--color-gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--color-success);
    border-radius: var(--radius-full);
    transition: width 1s ease;
}

.progress-fill.warning {
    background: var(--color-warning);
}

.progress-fill.danger {
    background: var(--color-danger);
}

.progress-text {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    font-size: 0.8125rem;
    color: var(--color-gray-600);
}

.credit-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.detail-item {
    background: var(--color-gray-50);
    padding: 0.75rem;
    border-radius: var(--radius);
}

.detail-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-gray-600);
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.detail-value {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-gray-900);
}

/* Resumen de Créditos - MEJORADO */
.credit-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.summary-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.summary-card.debt {
    border-left: 4px solid var(--color-danger);
}

.summary-card.original {
    border-left: 4px solid var(--color-primary);
}

.summary-card.interest {
    border-left: 4px solid var(--color-warning);
}

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

.summary-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.summary-card.debt .summary-icon {
    background: #fee2e2;
}

.summary-card.original .summary-icon {
    background: #e0e7ff;
}

.summary-card.interest .summary-icon {
    background: #fef3c7;
}

.summary-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-gray-600);
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.summary-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.summary-card.debt .summary-value {
    color: var(--color-danger);
}

.summary-card.original .summary-value {
    color: var(--color-primary);
}

.summary-card.interest .summary-value {
    color: var(--color-warning);
}

.summary-description {
    font-size: 0.8125rem;
    color: var(--color-gray-500);
    margin-top: 0.375rem;
}

/* ========== REPORTES ========== */
.report-section {
    margin-bottom: 2rem;
}

.report-header {
    margin-bottom: 2rem;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.chart-container {
    background: white;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.chart-container h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
}

/* ========== Total Box ========== */
.total-box {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-top: 1.5rem;
    font-size: 1.125rem;
    font-weight: 600;
}

.total-positive {
    border-left: 4px solid var(--color-success);
}

.total-negative {
    border-left: 4px solid var(--color-danger);
}

.total-amount {
    font-size: 1.5rem;
    font-weight: 700;
}

/* ========== Badges ========== */
.badge {
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

/* ========== Amounts con colores ========== */
.amount-positive {
    color: var(--color-success);
    font-weight: 600;
}

.amount-negative {
    color: var(--color-danger);
    font-weight: 600;
}

/* ========== Utilities ========== */
.hidden {
    display: none !important;
}

.mt-3 {
    margin-top: 2rem;
}

.mb-3 {
    margin-bottom: 2rem;
}

.text-center {
    text-align: center;
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
    body {
        padding: 0.5rem;
    }
    
    .header {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
    }
    
    .header h1 {
        font-size: 1.25rem;
    }
    
    .user-info {
        flex-direction: column;
        width: 100%;
    }
    
    .dashboard-cards {
        grid-template-columns: 1fr;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .credit-summary {
        grid-template-columns: 1fr;
    }
    
    .card {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .tab-content h2 {
        font-size: 1.5rem;
    }
    
    .dashboard-cards .card .amount {
        font-size: 1.5rem;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn-group .btn {
        width: 100%;
    }
}

/* ========== Print ========== */
@media print {
    body {
        background: white;
        padding: 0;
    }
    
    .header,
    .nav-tabs,
    .btn,
    .credit-actions {
        display: none !important;
    }
    
    .card,
    table {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}