/* ===== FRONTEND SIDEBAR CSS ULTRAMODERNO - TECNÓPOLIS ===== */
/* Archivo: assets/css/frontend-sidebar.css */

:root {
    --sidebar-primary: #0066B3;
    --sidebar-secondary: #007BFF;
    --sidebar-accent: #00D4FF;
    --sidebar-success: #10B981;
    --sidebar-warning: #F59E0B;
    --sidebar-danger: #EF4444;
    --sidebar-white: #FFFFFF;
    --sidebar-gray-50: #F9FAFB;
    --sidebar-gray-100: #F3F4F6;
    --sidebar-gray-200: #E5E7EB;
    --sidebar-gray-300: #D1D5DB;
    --sidebar-gray-400: #9CA3AF;
    --sidebar-gray-500: #6B7280;
    --sidebar-gray-600: #4B5563;
    --sidebar-gray-700: #374151;
    --sidebar-gray-800: #1F2937;
    --sidebar-gray-900: #111827;
    
    /* Gradientes modernos */
    --gradient-sidebar: linear-gradient(135deg, var(--sidebar-primary) 0%, var(--sidebar-secondary) 100%);
    --gradient-hover: linear-gradient(135deg, var(--sidebar-secondary) 0%, var(--sidebar-accent) 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    
    /* Sombras modernas */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px rgba(0, 102, 179, 0.3);
    
    /* Bordes y espaciado */
    --radius-xs: 0.25rem;
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;
    
    /* Transiciones */
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-index levels */
    --z-sidebar: 1000;
    --z-quick-links: 1100;
    --z-overlay: 1200;
}

/* ===== SIDEBAR WIDGETS ===== */
.sidebar-widget {
    background: var(--sidebar-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    overflow: hidden;
    transition: var(--transition);
    position: relative;
    border: 1px solid var(--sidebar-gray-100);
}

.sidebar-widget::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-sidebar);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.sidebar-widget:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--sidebar-gray-200);
}

.sidebar-widget:hover::before {
    transform: scaleX(1);
}

/* Contenido del widget */
.sidebar-widget-content {
    padding: 1.5rem;
}

.sidebar-widget.compact .sidebar-widget-content {
    padding: 1rem;
}

.sidebar-widget.large .sidebar-widget-content {
    padding: 2rem;
}

/* ===== TÍTULOS DE WIDGET ===== */
.sidebar-widget-title,
.widget-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--sidebar-gray-900);
    margin-bottom: 1.25rem;
    position: relative;
    padding-bottom: 0.75rem;
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
}

.sidebar-widget-title::after,
.widget-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-sidebar);
    border-radius: var(--radius-full);
    transition: var(--transition);
}

.sidebar-widget:hover .sidebar-widget-title::after,
.sidebar-widget:hover .widget-title::after {
    width: 80px;
}

/* Variantes de título */
.widget-title.center {
    text-align: center;
}

.widget-title.center::after {
    left: 50%;
    transform: translateX(-50%);
}

.widget-title.large {
    font-size: 1.5rem;
}

.widget-title.small {
    font-size: 1.125rem;
}

/* ===== LISTAS EN SIDEBAR ===== */
.sidebar-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-links li {
    margin-bottom: 0.5rem;
    transition: var(--transition-fast);
}

.sidebar-links li:last-child {
    margin-bottom: 0;
}

/* Enlaces de sidebar */
.sidebar-links a,
.category-link,
.recent-post-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: var(--sidebar-gray-700);
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    position: relative;
    font-weight: 500;
    background: var(--sidebar-gray-50);
    border: 1px solid transparent;
}

.sidebar-links a:hover,
.category-link:hover,
.recent-post-link:hover {
    background: var(--gradient-sidebar);
    color: var(--sidebar-white);
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--sidebar-primary);
}

/* Estado activo */
.sidebar-links a.active,
.category-link.active,
.recent-post-link.active {
    background: var(--gradient-sidebar);
    color: var(--sidebar-white);
    box-shadow: var(--shadow-md);
    font-weight: 600;
}

/* Iconos en enlaces */
.sidebar-links i,
.category-link i {
    margin-right: 0.75rem;
    font-size: 0.875rem;
    width: 16px;
    text-align: center;
    transition: var(--transition-fast);
}

.sidebar-links a:hover i,
.category-link:hover i {
    transform: scale(1.2);
}

/* ===== LISTA DE CATEGORÍAS ===== */
.categories-list .category-item {
    margin-bottom: 0.75rem;
    position: relative;
}

.categories-list .category-link {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--sidebar-gray-50) 0%, var(--sidebar-white) 100%);
    border: 2px solid var(--sidebar-gray-100);
    font-weight: 600;
    transition: var(--transition);
}

.categories-list .category-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 4px;
    height: 0;
    background: var(--gradient-sidebar);
    border-radius: 0 2px 2px 0;
    transform: translateY(-50%);
    transition: var(--transition);
}

.categories-list .category-link:hover::before {
    height: 60%;
}

.categories-list .category-link:hover {
    border-color: var(--sidebar-primary);
    background: linear-gradient(135deg, var(--sidebar-primary) 0%, var(--sidebar-secondary) 100%);
    color: var(--sidebar-white);
    transform: translateX(12px);
    box-shadow: var(--shadow-xl);
}

/* Counter en categorías */
.category-count {
    background: var(--sidebar-gray-200);
    color: var(--sidebar-gray-600);
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-full);
    margin-left: auto;
    font-weight: 600;
    transition: var(--transition);
}

.category-link:hover .category-count {
    background: rgba(255, 255, 255, 0.2);
    color: var(--sidebar-white);
}

/* ===== POSTS RECIENTES ===== */
.recent-posts-list .recent-post-item {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--sidebar-gray-100);
    transition: var(--transition);
}

.recent-posts-list .recent-post-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.recent-post-link {
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem;
    background: linear-gradient(135deg, var(--sidebar-gray-50) 0%, var(--sidebar-white) 100%);
    border: 1px solid var(--sidebar-gray-100);
    border-radius: var(--radius-lg);
}

.recent-post-link:hover {
    transform: translateY(-4px);
    background: var(--gradient-sidebar);
    color: var(--sidebar-white);
    box-shadow: var(--shadow-lg);
}

.post-date {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--sidebar-gray-500);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.recent-post-link:hover .post-date {
    color: rgba(255, 255, 255, 0.8);
}

.post-title {
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== QUICK LINKS SIDEBAR ===== */
.quick-links-sidebar {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: var(--z-quick-links);
    transition: var(--transition-slow);
    display: flex;
    align-items: center;
}

.quick-links-sidebar.hidden {
    transform: translateY(-50%) translateX(100%);
}

/* Toggle button */
.quick-links-toggle {
    background: var(--gradient-sidebar);
    color: var(--sidebar-white);
    width: 50px;
    height: 140px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.quick-links-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: var(--transition-slow);
}

.quick-links-toggle:hover::before {
    left: 100%;
}

.quick-links-toggle:hover {
    background: var(--gradient-hover);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    transform: translateX(-5px);
}

.quick-links-toggle span {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-weight: 700;
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    user-select: none;
}

/* Contenido de quick links */
.quick-links-content {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    width: 320px;
    padding: 1.5rem;
    border-radius: var(--radius-xl) 0 0 var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    transform: translateX(100%);
    transition: var(--transition-slow);
    border: 1px solid var(--sidebar-gray-100);
    max-height: 80vh;
    overflow-y: auto;
}

.quick-links-sidebar.open .quick-links-content {
    transform: translateX(0);
}

/* Scrollbar personalizado para quick links */
.quick-links-content::-webkit-scrollbar {
    width: 6px;
}

.quick-links-content::-webkit-scrollbar-track {
    background: var(--sidebar-gray-100);
    border-radius: var(--radius-sm);
}

.quick-links-content::-webkit-scrollbar-thumb {
    background: var(--gradient-sidebar);
    border-radius: var(--radius-sm);
}

/* ===== QUICK LINK ITEMS ===== */
.quick-link-item {
    display: flex;
    align-items: center;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-lg);
    color: var(--sidebar-gray-700);
    text-decoration: none;
    transition: var(--transition);
    margin-bottom: 0.75rem;
    background: linear-gradient(135deg, var(--sidebar-gray-50) 0%, var(--sidebar-white) 100%);
    border: 1px solid var(--sidebar-gray-100);
    position: relative;
    overflow: hidden;
}

.quick-link-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-sidebar);
    transition: var(--transition);
    z-index: 0;
}

.quick-link-item:hover::before {
    left: 0;
}

.quick-link-item:hover {
    color: var(--sidebar-white);
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--sidebar-primary);
}

.quick-link-item > * {
    position: relative;
    z-index: 1;
}

/* Iconos de quick links */
.quick-link-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-sidebar);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    color: var(--sidebar-white);
    font-size: 1.25rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    flex-shrink: 0;
}

.quick-link-item:hover .quick-link-icon {
    background: var(--sidebar-white);
    color: var(--sidebar-primary);
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.quick-link-text {
    font-weight: 600;
    font-size: 0.875rem;
    line-height: 1.3;
}

.quick-link-description {
    font-size: 0.75rem;
    font-weight: 400;
    opacity: 0.8;
    margin-top: 0.25rem;
    line-height: 1.2;
}

/* ===== SEARCH WIDGET ===== */
.sidebar-search {
    position: relative;
    margin-bottom: 1.5rem;
}

.sidebar-search input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    border: 2px solid var(--sidebar-gray-200);
    border-radius: var(--radius-full);
    background: var(--sidebar-white);
    font-size: 0.875rem;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.sidebar-search input:focus {
    outline: none;
    border-color: var(--sidebar-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 179, 0.1), var(--shadow-md);
    background: linear-gradient(135deg, var(--sidebar-white) 0%, var(--sidebar-gray-50) 100%);
}

.sidebar-search .search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--sidebar-gray-400);
    font-size: 1rem;
    transition: var(--transition);
}

.sidebar-search input:focus + .search-icon {
    color: var(--sidebar-primary);
    transform: translateY(-50%) scale(1.1);
}

/* ===== TAGS WIDGET ===== */
.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tag-item {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--sidebar-gray-100);
    color: var(--sidebar-gray-600);
    text-decoration: none;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    transition: var(--transition);
    border: 1px solid var(--sidebar-gray-200);
}

.tag-item:hover {
    background: var(--gradient-sidebar);
    color: var(--sidebar-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--sidebar-primary);
}

.tag-count {
    background: var(--sidebar-white);
    color: var(--sidebar-gray-600);
    font-size: 0.625rem;
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-full);
    margin-left: 0.5rem;
    font-weight: 600;
    transition: var(--transition);
}

.tag-item:hover .tag-count {
    background: rgba(255, 255, 255, 0.2);
    color: var(--sidebar-white);
}

/* ===== SOCIAL LINKS WIDGET ===== */
.social-links-widget {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--sidebar-gray-100);
    color: var(--sidebar-gray-600);
    text-decoration: none;
    border-radius: 50%;
    font-size: 1.25rem;
    transition: var(--transition);
    border: 2px solid var(--sidebar-gray-200);
    position: relative;
    overflow: hidden;
}

.social-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-sidebar);
    transition: var(--transition);
}

.social-link:hover::before {
    left: 0;
}

.social-link:hover {
    color: var(--sidebar-white);
    transform: translateY(-3px) scale(1.1);
    box-shadow: var(--shadow-lg);
    border-color: var(--sidebar-primary);
}

.social-link i {
    position: relative;
    z-index: 1;
}

/* Colores específicos para redes sociales */
.social-link.facebook:hover { background: #1877F2; border-color: #1877F2; }
.social-link.twitter:hover { background: #1DA1F2; border-color: #1DA1F2; }
.social-link.instagram:hover { background: #E4405F; border-color: #E4405F; }
.social-link.linkedin:hover { background: #0077B5; border-color: #0077B5; }
.social-link.youtube:hover { background: #FF0000; border-color: #FF0000; }

/* ===== NEWSLETTER WIDGET ===== */
.newsletter-form {
    margin-top: 1rem;
}

.newsletter-form .form-group {
    margin-bottom: 1rem;
}

.newsletter-form input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--sidebar-gray-200);
    border-radius: var(--radius-lg);
    background: var(--sidebar-white);
    font-size: 0.875rem;
    transition: var(--transition);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--sidebar-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 179, 0.1);
}

.newsletter-form button {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--gradient-sidebar);
    color: var(--sidebar-white);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.newsletter-form button:hover {
    background: var(--gradient-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1200px) {
    .quick-links-content {
        width: 280px;
    }
    
    .quick-link-icon {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }
}

@media (max-width: 992px) {
    .quick-links-sidebar {
        display: none;
    }
    
    .sidebar-widget {
        margin-bottom: 1.5rem;
    }
    
    .sidebar-widget-content {
        padding: 1.25rem;
    }
}

@media (max-width: 768px) {
    .sidebar-widget {
        border-radius: var(--radius-lg);
        margin-bottom: 1.25rem;
    }
    
    .sidebar-widget-content {
        padding: 1rem;
    }
    
    .widget-title {
        font-size: 1.125rem;
        margin-bottom: 1rem;
    }
    
    .sidebar-links a,
    .category-link {
        padding: 0.625rem 0.875rem;
        font-size: 0.875rem;
    }
    
    .recent-post-link {
        padding: 0.875rem;
    }
    
    .social-links-widget {
        gap: 0.75rem;
    }
    
    .social-link {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .sidebar-widget-content {
        padding: 0.875rem;
    }
    
    .widget-title {
        font-size: 1rem;
    }
    
    .categories-list .category-link {
        padding: 0.75rem 1rem;
    }
    
    .tags-cloud {
        gap: 0.375rem;
    }
    
    .tag-item {
        padding: 0.375rem 0.75rem;
        font-size: 0.6875rem;
    }
}

/* ===== MODO OSCURO ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --sidebar-white: #1F2937;
        --sidebar-gray-50: #374151;
        --sidebar-gray-100: #4B5563;
        --sidebar-gray-200: #6B7280;
        --sidebar-gray-300: #9CA3AF;
        --sidebar-gray-700: #D1D5DB;
        --sidebar-gray-800: #E5E7EB;
        --sidebar-gray-900: #F9FAFB;
    }
    
    .sidebar-widget {
        background: var(--sidebar-white);
        border-color: var(--sidebar-gray-100);
    }
    
    .quick-links-content {
        background: rgba(31, 41, 55, 0.95);
        border-color: var(--sidebar-gray-100);
    }
}

/* ===== UTILIDADES ===== */
.sidebar-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--sidebar-gray-200), transparent);
    margin: 1.5rem 0;
    border: none;
}

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

.sidebar-text-small {
    font-size: 0.75rem;
}

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

.sidebar-mb-0 { margin-bottom: 0 !important; }
.sidebar-mb-1 { margin-bottom: 0.5rem !important; }
.sidebar-mb-2 { margin-bottom: 1rem !important; }
.sidebar-mb-3 { margin-bottom: 1.5rem !important; }

.sidebar-p-0 { padding: 0 !important; }
.sidebar-p-1 { padding: 0.5rem !important; }
.sidebar-p-2 { padding: 1rem !important; }
.sidebar-p-3 { padding: 1.5rem !important; }

/* ===== ANIMACIONES ADICIONALES ===== */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-slide-in-right {
    animation: slideInRight 0.5s ease-out;
}

.animate-stagger > * {
    animation-delay: calc(var(--stagger-delay, 0.1s) * var(--stagger-index, 0));
}

/* ===== ACCESIBILIDAD ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
}

/* Focus visible para navegación por teclado */
.sidebar-links a:focus-visible,
.category-link:focus-visible,
.quick-link-item:focus-visible,
.social-link:focus-visible {
    outline: 2px solid var(--sidebar-primary);
    outline-offset: 2px;
}

/* ===== HIGH CONTRAST MODE ===== */
@media (prefers-contrast: high) {
    .sidebar-widget {
        border: 2px solid var(--sidebar-gray-900);
    }
    
    .sidebar-links a,
    .category-link {
        border: 1px solid var(--sidebar-gray-400);
    }
    
    .sidebar-links a:hover,
    .category-link:hover {
        border-color: var(--sidebar-gray-900);
    }
}