/* Variables CSS para el sistema de temas */
:root {
    /* Colores primarios - Azul elegante */
    --color-primary: #3b82f6;
    --color-primary-rgb: 59, 130, 246;
    --color-primary-light: #60a5fa;
    --color-primary-dark: #2563eb;
    
    /* Colores secundarios - Verde suave */
    --color-secondary: #10b981;
    --color-secondary-rgb: 16, 185, 129;
    --color-secondary-light: #34d399;
    --color-secondary-dark: #059669;
    
    /* Colores de acento - Violeta */
    --color-accent: #8b5cf6;
    --color-accent-rgb: 139, 92, 246;
    --color-accent-light: #a78bfa;
    --color-accent-dark: #7c3aed;
    
    /* Colores de fondo y texto (modo claro) */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f9fafb;
    --color-bg-tertiary: #f3f4f6;
    
    --color-text-primary: #111827;
    --color-text-secondary: #4b5563;
    --color-text-tertiary: #6b7280;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --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);
    
    /* Bordes */
    --border-radius: 0.375rem;
    --border-radius-lg: 0.5rem;
    --border-radius-full: 9999px;
    
    /* Transiciones */
    --transition-fast: 150ms;
    --transition: 300ms;
    --transition-slow: 500ms;
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Contenedor */
    --container-max-width: 1280px;
    --container-padding: 1rem;
}

/* Tema oscuro */
.dark {
    --color-bg-primary: #111827;
    --color-bg-secondary: #1f2937;
    --color-bg-tertiary: #374151;
    
    --color-text-primary: #f9fafb;
    --color-text-secondary: #e5e7eb;
    --color-text-tertiary: #d1d5db;
    
    /* Ajustar colores para mejor contraste en modo oscuro */
    --color-primary-light: #93c5fd;
    --color-secondary-light: #5eead4;
    --color-accent-light: #c4b5fd;
    
    /* Sombras más intensas para el modo oscuro */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.4), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6), 0 4px 6px -2px rgba(0, 0, 0, 0.1);
}

/* Estilos de reset y base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--color-text-primary);
    background-color: var(--color-bg-secondary);
    line-height: 1.6;
    transition: color var(--transition), background-color var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.3;
    font-weight: 600;
}

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

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

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

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes fall {
    0% { transform: translateY(0) rotate(0deg); }
    100% { transform: translateY(calc(100vh + 20px)) rotate(360deg); }
}

@keyframes shine {
    0% { background-position: -100% 0; }
    100% { background-position: 200% 0; }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.slide-up {
    animation: slideUp 0.5s ease forwards;
}

.fade-in {
    animation: fadeIn 0.3s ease forwards;
}

/* Contenedores */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    width: 100%;
}

/* Header */
.header {
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid rgba(var(--color-primary-rgb), 0.1);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 40;
    transition: background-color var(--transition), border-color var(--transition);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--color-text-primary);
    text-decoration: none;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: var(--border-radius);
    background-color: var(--color-primary);
    color: white;
    font-size: 1rem;
    transition: background-color var(--transition);
}

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

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: all var(--transition);
    cursor: pointer;
    border: none;
    outline: none;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow);
}

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

.btn-secondary:hover {
    background-color: var(--color-secondary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-accent:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background-color: rgba(var(--color-primary-rgb), 0.05);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

.btn i {
    font-size: 0.875rem;
}

/* Efecto ripple */
.ripple-effect {
    position: absolute;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.25);
    transform: scale(0);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Cards */
.card {
    background-color: var(--color-bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition);
    border: 1px solid rgba(0,0,0,0.05);
}

.dark .card {
    border-color: rgba(255,255,255,0.05);
}

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

/* Categorías */
.category-card {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    background-color: var(--color-bg-primary);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    cursor: pointer;
    border: 1px solid rgba(var(--color-primary-rgb), 0.1);
    position: relative;
    overflow: hidden;
}

.category-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(var(--color-primary-rgb), 0.3);
}

.category-card.active {
    border-color: var(--color-primary);
    background-color: rgba(var(--color-primary-rgb), 0.05);
}

.category-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--border-radius);
    background-color: rgba(var(--color-primary-rgb), 0.1);
    margin-right: var(--spacing-md);
    transition: all var(--transition);
}

.category-card:hover .category-icon,
.category-card.active .category-icon {
    transform: scale(1.1);
}

.category-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.category-meta {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 1px solid rgba(var(--color-primary-rgb), 0.1);
    margin-bottom: var(--spacing-lg);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

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

.tab-item {
    padding: var(--spacing-sm) var(--spacing-md);
    margin-right: var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition);
    border-bottom: 2px solid transparent;
    white-space: nowrap;
    display: flex;
    align-items: center;
}

.tab-item:hover {
    color: var(--color-primary);
}

.tab-item.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-content {
    animation: fadeIn 0.3s ease;
}

/* Formularios */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.form-control {
    width: 100%;
    padding: 0.625rem 0.75rem;
    font-size: 0.875rem;
    background-color: var(--color-bg-primary);
    border: 1px solid rgba(var(--color-primary-rgb), 0.2);
    border-radius: var(--border-radius);
    transition: all var(--transition);
    color: var(--color-text-primary);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
}

.dark .form-control {
    background-color: var(--color-bg-tertiary);
    border-color: rgba(255,255,255,0.1);
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

/* Checkboxes personalizados */
.custom-checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.875rem;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    transition: background-color var(--transition);
}

.custom-checkbox:hover {
    background-color: var(--color-bg-tertiary);
}

.custom-checkbox input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkbox-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 1.25rem;
    height: 1.25rem;
    margin-right: 0.5rem;
    background-color: var(--color-bg-primary);
    border: 1.5px solid rgba(var(--color-primary-rgb), 0.3);
    border-radius: 0.25rem;
    transition: all var(--transition);
}

.dark .checkbox-icon {
    background-color: var(--color-bg-tertiary);
    border-color: rgba(255,255,255,0.2);
}

.checkbox-icon i {
    color: white;
    font-size: 0.75rem;
    opacity: 0;
    transform: scale(0);
    transition: all var(--transition-fast);
}

.custom-checkbox input:checked ~ .checkbox-icon {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.custom-checkbox input:checked ~ .checkbox-icon i {
    opacity: 1;
    transform: scale(1);
}

/* Grid y Layout */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: -0.5rem;
}

.col {
    padding: 0.5rem;
    flex: 1;
    min-width: 0;
}

.grid {
    display: grid;
}

.grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
}

.gap-2 {
    gap: 0.5rem;
}

.gap-3 {
    gap: 0.75rem;
}

.gap-4 {
    gap: 1rem;
}

.gap-6 {
    gap: 1.5rem;
}

/* Progress Steps */
.progress-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    position: relative;
}

.progress-steps::before {
    content: '';
    position: absolute;
    top: 1rem;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--color-bg-tertiary);
    z-index: 1;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
    flex: 1;
}

.step-circle {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background-color: var(--color-bg-tertiary);
    border: 2px solid var(--color-bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-secondary);
    transition: all var(--transition);
}

.step-title {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    transition: all var(--transition);
}

.progress-step.active .step-circle {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.progress-step.active .step-title {
    color: var(--color-primary);
    font-weight: 500;
}

.progress-step.completed .step-circle {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.progress-step.completed .step-circle::after {
    content: '✓';
    font-size: 0.875rem;
}

/* Toast notifications */
.toast-container {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    z-index: 50;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: 24rem;
    width: calc(100% - 2rem);
}

.toast {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-radius: var(--border-radius);
    background-color: var(--color-bg-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(100%);
    opacity: 0;
    transition: all var(--transition);
    border-left: 4px solid var(--color-primary);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

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

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

.toast-warning {
    border-left-color: #f59e0b;
}

.toast-error {
    border-left-color: #ef4444;
}

.toast-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    font-size: 1rem;
    margin-right: 0.75rem;
}

.toast-info .toast-icon {
    color: var(--color-primary);
}

.toast-success .toast-icon {
    color: var(--color-secondary);
}

.toast-warning .toast-icon {
    color: #f59e0b;
}

.toast-error .toast-icon {
    color: #ef4444;
}

.toast-content {
    flex: 1;
    min-width: 0;
}

.toast-title {
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.toast-message {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.toast-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
    padding: 0.25rem;
    margin-left: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toast-close:hover {
    color: var(--color-text-primary);
}

/* Loading Overlay */
#loadingOverlay {
    transition: opacity var(--transition);
}

.spinner {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    border: 4px solid rgba(var(--color-primary-rgb), 0.1);
    border-top-color: var(--color-primary);
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Modal */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}

.modal-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    background-color: var(--color-bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    transform: translateY(20px);
    opacity: 0;
    transition: transform var(--transition), opacity var(--transition);
}

.modal-backdrop.active .modal {
    transform: translateY(0);
    opacity: 1;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid rgba(var(--color-primary-rgb), 0.1);
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-tertiary);
    font-size: 1.25rem;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

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

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 1rem;
    gap: 0.5rem;
    border-top: 1px solid rgba(var(--color-primary-rgb), 0.1);
}

/* Footer */
.footer {
    background-color: var(--color-bg-primary);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
    border-top: 1px solid rgba(var(--color-primary-rgb), 0.1);
}

/* Skeletons */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-tertiary) 25%,
        var(--color-bg-secondary) 50%,
        var(--color-bg-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Texto y tipografía */
.text-xs {
    font-size: 0.75rem;
}

.text-sm {
    font-size: 0.875rem;
}

.text-base {
    font-size: 1rem;
}

.text-lg {
    font-size: 1.125rem;
}

.text-xl {
    font-size: 1.25rem;
}

.text-2xl {
    font-size: 1.5rem;
}

.text-3xl {
    font-size: 1.875rem;
}

.font-normal {
    font-weight: 400;
}

.font-medium {
    font-weight: 500;
}

.font-semibold {
    font-weight: 600;
}

.font-bold {
    font-weight: 700;
}

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

.flex {
    display: flex;
}

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

/* Clases responsivas */
@media (max-width: 768px) {
    .hide-md-down {
        display: none !important;
    }
    
    .row {
        flex-direction: column;
    }
    
    .col {
        width: 100%;
    }
    
    .card {
        padding: var(--spacing-md);
    }
    
    .progress-steps {
        overflow-x: auto;
        padding-bottom: var(--spacing-sm);
    }
    
    .progress-step {
        min-width: 80px;
    }
    
    .tabs {
        margin-bottom: var(--spacing-md);
    }
    
    .form-group {
        margin-bottom: var(--spacing-md);
    }
    
    .modal {
        width: 95%;
    }
}

@media (min-width: 769px) {
    .hide-md-up {
        display: none !important;
    }
    
    .md\:grid-cols-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .hide-sm {
        display: none !important;
    }
    
    .header .container {
        padding-top: 0.5rem;
        padding-bottom: 0.5rem;
    }
    
    .progress-step .step-title {
        display: none;
    }
    
    .btn {
        padding: 0.5rem 0.75rem;
    }
    
    .toast-container {
        width: calc(100% - 1rem);
        right: 0.5rem;
        bottom: 5rem; /* Evita que los toasts se superpongan con la navegación móvil */
    }
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-end {
    justify-content: flex-end;
}

.space-x-4 > * + * {
    margin-left: 1rem;
}

.space-y-2 > * + * {
    margin-top: 0.5rem;
}

.space-y-3 > * + * {
    margin-top: 0.75rem;
}

.space-y-4 > * + * {
    margin-top: 1rem;
}

.mt-1 {
    margin-top: 0.25rem;
}

.mt-2 {
    margin-top: 0.5rem;
}

.mt-4 {
    margin-top: 1rem;
}

.mt-6 {
    margin-top: 1.5rem;
}

.mb-1 {
    margin-bottom: 0.25rem;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.mb-6 {
    margin-bottom: 1.5rem;
}

.mr-1 {
    margin-right: 0.25rem;
}

.mr-2 {
    margin-right: 0.5rem;
}

.ml-2 {
    margin-left: 0.5rem;
}

.p-3 {
    padding: 0.75rem;
}

.p-4 {
    padding: 1rem;
}

.p-8 {
    padding: 2rem;
}

.py-1 {
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
}

.py-2 {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.py-4 {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.py-6 {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
}

.py-8 {
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.px-2 {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
}

/* Estilos para el contenido de la propuesta generada */
.prose {
    color: var(--color-text-primary);
    max-width: 65ch;
    line-height: 1.75;
}

.prose h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.prose h2 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
    border-bottom: 1px solid rgba(var(--color-primary-rgb), 0.2);
    padding-bottom: 0.5rem;
}

.prose p {
    margin-bottom: 1rem;
}

.prose strong {
    font-weight: 600;
    color: var(--color-primary);
}

/* App Ready Animation */
body:not(.app-ready) .card,
body:not(.app-ready) .header,
body:not(.app-ready) .footer {
    opacity: 0;
}

body.app-ready .card,
body.app-ready .header,
body.app-ready .footer {
    animation: fadeIn 0.5s ease forwards;
}

/* Botón de tema con animación */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-primary);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.theme-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(var(--color-primary-rgb), 0.1);
    border-radius: 50%;
    transform: scale(0);
    transition: transform var(--transition);
}

.theme-toggle:hover::before {
    transform: scale(1);
}

.theme-toggle i {
    position: relative;
    z-index: 2;
    transition: transform var(--transition);
}

.theme-toggle:hover i {
    transform: rotate(30deg);
}

/* Efectos hover para categorías */
.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(var(--color-primary-rgb), 0), rgba(var(--color-primary-rgb), 0.1), rgba(var(--color-primary-rgb), 0));
    background-size: 200% 100%;
    opacity: 0;
    transition: opacity var(--transition);
}

.category-card:hover::before {
    opacity: 1;
    animation: shine 2s infinite;
}

/* Gradiente animado para botón principal */
.btn-primary, .btn-accent {
    background-image: linear-gradient(
        90deg,
        var(--color-primary) 0%,
        var(--color-primary-light) 50%,
        var(--color-primary) 100%
    );
    background-size: 200% 100%;
    transition: all var(--transition), background-position var(--transition-slow);
}

.btn-accent {
    background-image: linear-gradient(
        90deg,
        var(--color-accent) 0%,
        var(--color-accent-light) 50%,
        var(--color-accent) 100%
    );
}

.btn-primary:hover, .btn-accent:hover {
    background-position: 100% 0;
}

/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-bg-primary);
    display: flex;
    justify-content: space-around;
    padding: 0.75rem 0;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 30;
    border-top: 1px solid rgba(var(--color-primary-rgb), 0.1);
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--color-text-tertiary);
    font-size: 0.75rem;
    padding: 0.5rem;
    transition: color var(--transition);
    width: 25%;
}

.mobile-nav-icon {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.mobile-nav-item.active {
    color: var(--color-primary);
}

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