/* === 0. Importar Fuentes === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* === 1. Variables Globales y Reset === */
:root {
    /* Nueva Paleta "Workey" */
    --color-primary: #5E5DF0; /* Un púrpura/azul vibrante */
    --color-primary-dark: #435EEA;
    --color-secondary: #8A94A6;
    --color-success: #10B981; /* Un verde moderno */
    --color-danger: #EF4444; /* Un rojo moderno */
    --color-warning: #F59E0B; /* Un naranja moderno */
    --color-light: #F9FAFB; /* Fondo de app principal (casi blanco) */
    --color-dark: #1D2A3F; /* Nuevo color para Sidebar (azul muy oscuro) */
    --color-text: #333;
    --color-text-light: #F9FAFB;
    --color-bg: #F9FAFB; /* Fondo general */
    --color-surface: #FFFFFF; /* Para tarjetas, modales, header */
    --color-border: #E5E7EB; /* Un borde sutil */
    --color-muted: #6B7280;

    /* Dimensiones */
    --sidebar-width: 240px;
    --header-height: 60px;
    
    /* Efectos */
    --border-radius: 8px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Responsive */
    --mobile-sidebar-width: 0px;
    --mobile-header-height: 56px;
}

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

html, body {
    height: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

/* === 2. Layout Principal === */
#app-layout {
    display: flex;
    min-height: 100vh;
    background-color: var(--color-bg);
}

/* === 3. Sidebar === */
#app-sidebar {
    width: var(--sidebar-width);
    background-color: var(--color-dark);
    color: var(--color-text-light);
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 100;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.sidebar-logo {
    padding: 1.5rem;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo img {
    max-width: 120px;
    height: auto;
}

.sidebar-nav {
    list-style: none;
    padding: 1rem 0;
}

.sidebar-nav li a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--color-text-light);
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.sidebar-nav li a:hover,
.sidebar-nav li a.active {
    background-color: rgba(255, 255, 255, 0.1);
    border-left-color: var(--color-primary);
    color: white;
}

.sidebar-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.sidebar-footer p {
    font-size: 0.8rem;
    color: var(--color-secondary);
    margin-bottom: 0.5rem;
}

/* === 4. Header === */
#app-header {
    background-color: var(--color-surface);
    height: var(--header-height);
    border-bottom: 1px solid var(--color-border);
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    z-index: 90;
    display: flex;
    align-items: center;
    padding: 0 2rem;
    transition: left 0.3s ease;
}

#page-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-dark);
    margin: 0;
    flex: 1;
}

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

.condo-selector-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.condo-selector-group select {
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background-color: var(--color-surface);
    color: var(--color-text);
}

.condo-code-display {
    font-size: 0.9rem;
    color: var(--color-muted);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.user-profile strong {
    color: var(--color-dark);
}

/* === 5. Main Content === */
#app-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    padding: 2rem;
    min-height: calc(100vh - var(--header-height));
    transition: margin-left 0.3s ease;
}

/* === 6. Cards === */
.card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    margin-bottom: 2rem;
}

/* === 7. Formularios === */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background-color: var(--color-surface);
    color: var(--color-text);
    font-size: 0.9rem;
    transition: border-color 0.2s ease;
}

.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(94, 93, 240, 0.1);
}

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

.form-help {
    font-size: 0.8rem;
    color: var(--color-muted);
    margin-top: 0.25rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

/* === 8. Botones === */
.btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
    border-radius: var(--border-radius);
    border: 1px solid transparent;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease-out;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    box-shadow: var(--shadow-sm);
    font-family: inherit;
}

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

.btn:active {
    transform: translateY(0);
}

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

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

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

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

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

.btn-success:hover {
    background-color: #059669;
}

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

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

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

.btn-warning:hover {
    background-color: #d97706;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

.btn-outline:hover {
    background-color: var(--color-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-sm {
    padding: 0.35rem 0.7rem;
    font-size: 0.8rem;
}

.btn-icon {
    padding: 0.5rem;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: background-color 0.2s ease;
}

.btn-icon:hover {
    background-color: var(--color-light);
}

/* === 9. Modal === */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    background-color: var(--color-surface);
    padding: 2rem;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow-xl);
    transform: scale(0.95);
    animation: zoomIn 0.3s ease-out forwards;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-content.large-modal {
    max-width: 800px;
}

@keyframes zoomIn {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* === 10. DASHBOARD STYLES === */
.dashboard-container {
    max-width: 1200px;
    margin: 0 auto;
}

.dashboard-header {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    margin-bottom: 2rem;
    align-items: start;
}

.welcome-section h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
}

.condominio-info {
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.fecha-info {
    color: var(--color-muted);
    font-size: 0.9rem;
}

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

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 100px;
}

.quick-action-btn:hover {
    background-color: var(--color-light);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.action-icon {
    font-size: 1.5rem;
}

.action-text {
    font-size: 0.85rem;
    font-weight: 500;
    text-align: center;
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all 0.2s ease;
}

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

.stat-card.stat-good {
    border-left: 4px solid var(--color-success);
}

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

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

.stat-icon {
    font-size: 2.5rem;
    width: 60px;
    text-align: center;
}

.stat-content {
    flex: 1;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-dark);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-muted);
    margin-top: 0.25rem;
}

.stat-details {
    font-size: 0.8rem;
    color: var(--color-secondary);
    margin-top: 0.25rem;
}

.dashboard-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.dashboard-left,
.dashboard-right {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.dashboard-section {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.dashboard-section h3 {
    padding: 1.5rem;
    margin: 0;
    background-color: var(--color-light);
    border-bottom: 1px solid var(--color-border);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-dark);
}

.section-content {
    padding: 1.5rem;
}

.section-footer {
    padding: 1rem 1.5rem;
    background-color: var(--color-light);
    border-top: 1px solid var(--color-border);
    text-align: right;
}

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 2rem;
    color: var(--color-muted);
}

.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top: 2px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.empty-state {
    text-align: center;
    padding: 2rem;
    color: var(--color-muted);
}

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

.empty-text {
    font-size: 1.1rem;
}

/* === 11. FINANZAS STYLES === */
.finances-container {
    max-width: 1200px;
    margin: 0 auto;
}

.finances-header {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
    align-items: start;
}

.finances-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.summary-card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.summary-icon {
    font-size: 2rem;
    width: 50px;
    text-align: center;
}

.summary-info h3 {
    font-size: 0.9rem;
    color: var(--color-muted);
    margin-bottom: 0.5rem;
}

.amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-dark);
    display: block;
}

.label {
    font-size: 0.8rem;
    color: var(--color-secondary);
}

.finances-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.finances-tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 2rem;
}

.tab-btn {
    padding: 1rem 1.5rem;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    font-weight: 500;
    color: var(--color-muted);
    transition: all 0.2s ease;
}

.tab-btn:hover,
.tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-content {
    display: none;
}

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

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

.gastos-filtros,
.pagos-resumen {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.gastos-list,
.pagos-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.gasto-card,
.pago-card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    padding: 1.5rem;
    transition: all 0.2s ease;
}

.gasto-card:hover,
.pago-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

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

.gasto-card.pagado {
    border-left: 4px solid var(--color-success);
}

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

.gasto-header,
.pago-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.gasto-info h4,
.pago-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 0.25rem;
}

.gasto-mes,
.pago-fecha {
    font-size: 0.85rem;
    color: var(--color-muted);
}

.gasto-amount,
.pago-monto {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.gasto-details,
.pago-details {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--color-secondary);
}

.gasto-tipo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.gasto-actions,
.pago-actions {
    display: flex;
    gap: 0.5rem;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 500;
}

.status-badge.pagado {
    background-color: var(--color-success);
    color: white;
}

.status-badge.pendiente {
    background-color: var(--color-warning);
    color: white;
}

.status-badge.vencido {
    background-color: var(--color-danger);
    color: white;
}

/* === 12. MENSAJES STYLES === */
.messages-container {
    max-width: 1200px;
    margin: 0 auto;
}

.messages-header {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    margin-bottom: 2rem;
    align-items: start;
}

.messages-info h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
}

.messages-subtitle {
    color: var(--color-muted);
}

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

.messages-tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 2rem;
}

.messages-content {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

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

.toolbar-left,
.toolbar-right {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.search-input {
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
}

.messages-list {
    max-height: 600px;
    overflow-y: auto;
}

.message-item {
    display: flex;
    align-items: start;
    gap: 1rem;
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    transition: background-color 0.2s ease;
    cursor: pointer;
}

.message-item:hover {
    background-color: var(--color-light);
}

.message-item.no-leido {
    background-color: #f8f9ff;
    border-left: 3px solid var(--color-primary);
}

.message-item.leido {
    opacity: 0.8;
}

.message-checkbox {
    margin-top: 0.5rem;
}

.message-content {
    flex: 1;
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.message-from,
.message-to {
    font-weight: 600;
    color: var(--color-dark);
}

.message-date {
    font-size: 0.85rem;
    color: var(--color-muted);
}

.message-asunto {
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
}

.message-preview {
    color: var(--color-secondary);
    font-size: 0.9rem;
    line-height: 1.4;
}

.message-tags {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.tag {
    padding: 0.25rem 0.5rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 500;
    background-color: var(--color-light);
    color: var(--color-muted);
}

.tag-finanzas {
    background-color: #e0f2fe;
    color: #0369a1;
}

.tag-mantenimiento {
    background-color: #fef3c7;
    color: #d97706;
}

.tag-administracion {
    background-color: #f3e8ff;
    color: #7c3aed;
}

.message-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* === 13. RESPONSIVE DESIGN === */

/* Tablets */
@media (max-width: 1024px) {
    .dashboard-header {
        grid-template-columns: 1fr;
    }
    
    .finances-header {
        grid-template-columns: 1fr;
    }
    
    .messages-header {
        grid-template-columns: 1fr;
    }
    
    .dashboard-main {
        grid-template-columns: 1fr;
    }
    
    .finances-summary {
        grid-template-columns: 1fr;
    }
}

/* Mobile */
@media (max-width: 768px) {
    /* Variables móviles */
    :root {
        --sidebar-width: 0px;
        --mobile-sidebar-width: 280px;
    }
    
    /* Ocultar sidebar en móvil */
    #app-sidebar {
        transform: translateX(-100%);
    }
    
    #app-sidebar.mobile-open {
        transform: translateX(0);
    }
    
    /* Ajustar header */
    #app-header {
        left: 0;
        padding: 0 1rem;
    }
    
    #page-title {
        font-size: 1.2rem;
    }
    
    .header-controls {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .user-profile {
        font-size: 0.8rem;
    }
    
    .condo-selector-wrapper {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    /* Ajustar main */
    #app-main {
        margin-left: 0;
        padding: 1rem;
    }
    
    /* Dashboard móvil */
    .dashboard-stats {
        grid-template-columns: 1fr;
    }
    
    .quick-actions {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .quick-action-btn {
        min-width: 80px;
        padding: 0.75rem;
    }
    
    /* Finanzas móvil */
    .finances-summary {
        grid-template-columns: 1fr;
    }
    
    .gastos-header,
    .pagos-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .gastos-filtros {
        flex-direction: column;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    /* Mensajes móvil */
    .messages-toolbar {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .toolbar-left,
    .toolbar-right {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .message-item {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .message-header {
        flex-direction: column;
        align-items: stretch;
        gap: 0.25rem;
    }
    
    .message-actions {
        flex-direction: row;
        justify-content: center;
    }
    
    /* Botones y formularios */
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        justify-content: center;
    }
    
    /* Modal móvil */
    .modal-content {
        width: 95%;
        padding: 1.5rem;
        margin: 1rem;
    }
    
    .modal-content.large-modal {
        width: 95%;
    }
}

/* Mobile muy pequeño */
@media (max-width: 480px) {
    #app-main {
        padding: 0.75rem;
    }
    
    .card {
        padding: 1rem;
    }
    
    .dashboard-section h3 {
        padding: 1rem;
    }
    
    .section-content {
        padding: 1rem;
    }
    
    .summary-card,
    .stat-card {
        padding: 1rem;
    }
    
    .messages-actions {
        flex-direction: column;
    }
    
    .messages-actions .btn {
        justify-content: center;
    }
}

/* === 14. UTILIDADES === */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }

.hidden { display: none; }
.visible { display: block; }

/* === 15. ANIMACIONES === */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-up {
    animation: slideInUp 0.5s ease-out;
}

/* === 16. MEJORAS DE UX === */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    color: white;
    font-weight: 500;
    z-index: 2000;
    animation: slideInRight 0.3s ease-out;
    max-width: 300px;
    box-shadow: var(--shadow-lg);
}

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

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

.notification.error {
    background-color: var(--color-danger);
}

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

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

/* Focus states para accesibilidad */
.btn:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Estados de carga */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1500;
}

/* Mejoras para touch en móvil */
@media (hover: none) {
    .btn:hover {
        transform: none;
    }
    
    .quick-action-btn:hover {
        transform: none;
    }
    
    .stat-card:hover {
        transform: none;
    }
    
    .gasto-card:hover,
    .pago-card:hover {
        transform: none;
    }
}

/* === 17. MENÚ MÓVIL === */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-dark);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .mobile-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 99;
    }
    
    .mobile-overlay.active {
        display: block;
    }
}

/* === 18. MEJORAS DE ACCESIBILIDAD === */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus visible para navegación por teclado */
.btn:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* === 19. OPTIMIZACIONES DE RENDIMIENTO === */
.gpu-accelerated {
    transform: translateZ(0);
    will-change: transform;
}

/* Lazy loading para imágenes */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

/* === 20. PRINT STYLES === */
@media print {
    .sidebar,
    .header-controls,
    .btn,
    .modal-backdrop {
        display: none !important;
    }
    
    #app-main {
        margin: 0 !important;
        padding: 0 !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
}