/**
 * Estilos Principales - Sistema de Ahorro Programado
 * Diseño moderno, limpio y totalmente responsive
 * Version 2.0 - Optimizado para móviles
 */

/* ========== VARIABLES CSS ========== */
:root {
    /* Paleta de colores moderna y profesional */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    
    --secondary: #10b981;
    --secondary-dark: #059669;
    --secondary-light: #34d399;
    
    --accent: #f59e0b;
    --accent-dark: #d97706;
    
    --purple: #8b5cf6;
    --purple-dark: #7c3aed;
    
    --danger: #ef4444;
    --warning: #f59e0b;
    --success: #10b981;
    --info: #3b82f6;
    
    /* Backgrounds */
    --bg-body: #f8fafc;
    --bg-white: #ffffff;
    --bg-light: #f1f5f9;
    --bg-dark: #1e293b;
    
    /* Texto */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-white: #ffffff;
    
    /* Bordes */
    --border-color: #e2e8f0;
    --border-radius: 0.75rem;
    --border-radius-sm: 0.5rem;
    --border-radius-lg: 1rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Espaciado */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    
    /* Transiciones */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== RESET Y BASE ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ========== CONTENEDOR PRINCIPAL ========== */
.main-container {
    min-height: calc(100vh - 80px);
    padding: var(--space-4) 0;
    margin-top: 0;
}

.content-wrapper {
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
    border: 1px solid var(--border-color);
}

/* ========== NAVEGACIÓN MEJORADA ========== */
.navbar-custom {
    background: var(--bg-white) !important;
    box-shadow: var(--shadow);
    padding: 0.5rem 0 !important;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary) !important;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand i {
    font-size: 1.5rem;
}

.navbar-brand:hover {
    color: var(--primary-dark) !important;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    font-size: 0.95rem;
}

.nav-link:hover {
    color: var(--primary) !important;
    background-color: var(--bg-light);
}

.nav-link.active {
    color: var(--primary) !important;
    background-color: rgba(99, 102, 241, 0.1);
    font-weight: 600;
}

/* Dropdown mejorado */
.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-md);
    border-radius: var(--border-radius);
    padding: var(--space-2);
    min-width: 220px;
}

.dropdown-header {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: var(--space-2) var(--space-3);
    margin-top: var(--space-2);
}

.dropdown-header:first-child {
    margin-top: 0;
}

.dropdown-item {
    border-radius: var(--border-radius-sm);
    padding: var(--space-2) var(--space-3);
    transition: var(--transition);
    font-size: 0.9rem;
}

.dropdown-item:hover {
    background-color: var(--bg-light);
    color: var(--primary);
    transform: translateX(5px);
}

.dropdown-item i {
    width: 20px;
    text-align: center;
    margin-right: var(--space-2);
}

.dropdown-divider {
    margin: var(--space-2) 0;
    opacity: 0.5;
}

/* Logo responsive */
.navbar-brand i {
    font-size: 1.5rem;
    margin-right: var(--space-2);
}

@media (max-width: 768px) {
    .navbar-brand i {
        margin-right: 0;
    }
}

/* ========== TARJETAS DE ESTADÍSTICAS ========== */
.stat-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: var(--border-radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    opacity: 0;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: var(--space-4);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(99, 102, 241, 0.05));
}

.stat-icon i {
    color: inherit !important;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    line-height: 1;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Colores específicos para cada tarjeta */
.stat-card:nth-child(1) .stat-icon {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(99, 102, 241, 0.05));
}

.stat-card:nth-child(2) .stat-icon {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(139, 92, 246, 0.05));
}

.stat-card:nth-child(3) .stat-icon {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(16, 185, 129, 0.05));
}

.stat-card:nth-child(4) .stat-icon {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(245, 158, 11, 0.05));
}

/* ========== TARJETAS DE METAS ========== */
.goal-card {
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.goal-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.goal-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
}

.goal-card-body {
    padding: var(--space-6);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.goal-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.goal-card-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--space-4);
    flex: 1;
}

.goal-progress {
    margin-bottom: var(--space-4);
}

.progress {
    height: 12px;
    border-radius: 6px;
    background-color: var(--bg-light);
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    transition: width 0.6s ease;
}

.goal-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-color);
}

.goal-stat-item {
    text-align: center;
}

.goal-stat-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    display: block;
}

.goal-stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.goal-card-actions {
    display: flex;
    gap: var(--space-2);
    margin-top: auto;
}

/* ========== BOTONES MEJORADOS ========== */
.btn {
    padding: 0.625rem 1.25rem;
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    border: none;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary-custom {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--text-white);
    box-shadow: var(--shadow-sm);
}

.btn-primary-custom:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    color: var(--text-white);
}

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

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

.btn-success-custom {
    background: linear-gradient(135deg, var(--success), var(--secondary-dark));
    color: var(--text-white);
    box-shadow: var(--shadow-sm);
}

.btn-success-custom:hover {
    background: linear-gradient(135deg, var(--secondary-dark), var(--success));
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    color: var(--text-white);
}

.btn-danger-custom {
    background: linear-gradient(135deg, var(--danger), #dc2626);
    color: var(--text-white);
    box-shadow: var(--shadow-sm);
}

.btn-danger-custom:hover {
    background: linear-gradient(135deg, #dc2626, var(--danger));
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    color: var(--text-white);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1.125rem;
}

/* ========== FORMULARIOS ========== */
.form-control,
.form-select {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--bg-white);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    outline: none;
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    font-size: 0.95rem;
}

.form-text {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: var(--space-2);
}

/* ========== ALERTAS ========== */
.alert {
    border-radius: var(--border-radius);
    border: none;
    padding: var(--space-4);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--secondary-dark);
    border-left: 4px solid var(--success);
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    border-left: 4px solid var(--danger);
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--accent-dark);
    border-left: 4px solid var(--warning);
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    color: #2563eb;
    border-left: 4px solid var(--info);
}

/* ========== BADGES ========== */
.badge {
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.8rem;
}

/* ========== TÍTULOS ========== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: var(--space-4);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

/* ========== TABLAS ========== */
.table {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.table thead th {
    background-color: var(--bg-light);
    color: var(--text-primary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    padding: var(--space-4);
    border: none;
}

.table tbody td {
    padding: var(--space-4);
    vertical-align: middle;
    border-color: var(--border-color);
}

.table tbody tr:hover {
    background-color: var(--bg-light);
}

/* ========== ACCIONES RÁPIDAS ========== */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.action-button {
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--space-6);
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
}

.action-button:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.03), transparent);
}

.action-button i {
    font-size: 3rem;
    color: var(--primary);
}

.action-button span {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.action-button p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ========== FOOTER ========== */
footer {
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
    padding: var(--space-6) 0;
    margin-top: var(--space-8);
    text-align: center;
    color: var(--text-secondary);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 991px) {
    .navbar-nav {
        padding: var(--space-4) 0;
        background: var(--bg-light);
        border-radius: var(--border-radius);
        margin-top: var(--space-3);
    }
    
    .nav-link {
        padding: var(--space-3) var(--space-4) !important;
        margin: var(--space-1) var(--space-2);
    }
    
    .content-wrapper {
        padding: var(--space-4);
    }
    
    .stat-card {
        padding: var(--space-4);
        margin-bottom: var(--space-4);
    }
    
    .stat-icon {
        width: 56px;
        height: 56px;
        font-size: 24px;
    }
    
    .stat-value {
        font-size: 1.75rem;
    }
    
    .goal-card-body {
        padding: var(--space-4);
    }
    
    .quick-actions {
        grid-template-columns: 1fr;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }
}

@media (max-width: 576px) {
    .main-container {
        padding: var(--space-3) 0;
    }
    
    .content-wrapper {
        padding: var(--space-3);
        border-radius: var(--border-radius);
    }
    
    .stat-card {
        padding: var(--space-3);
    }
    
    .stat-icon {
        width: 48px;
        height: 48px;
        font-size: 20px;
        margin-bottom: var(--space-3);
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.85rem;
    }
    
    .goal-card-image {
        height: 160px;
    }
    
    .goal-card-body {
        padding: var(--space-3);
    }
    
    .goal-card-title {
        font-size: 1.1rem;
    }
    
    .goal-stats {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }
    
    .btn {
        width: 100%;
        justify-content: center;
        padding: 0.75rem 1rem;
    }
    
    .goal-card-actions {
        flex-direction: column;
    }
    
    .action-button {
        padding: var(--space-4);
    }
    
    .action-button i {
        font-size: 2.5rem;
    }
    
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
}

/* ========== UTILIDADES ========== */
.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}