/**
 * WordPrezz - Main Stylesheet
 * Tech Moderno + Glassmorphism
 */

/* ============================================================================
   CSS VARIABLES
   ============================================================================ */

:root {
    /* Colors - Dark Theme (default) */
    --primary: #3B82F6;
    --primary-hover: #2563EB;
    --secondary: #8B5CF6;
    --secondary-hover: #7C3AED;
    
    --bg-primary: #0F172A;
    --bg-secondary: #1E293B;
    --bg-tertiary: #334155;
    
    --text-primary: #E2E8F0;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    
    --border: #334155;
    --border-light: #475569;
    
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --info: #3B82F6;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.4);
    --shadow-xl: 0 25px 50px rgba(0,0,0,0.5);
    
    /* Glass Effect */
    --glass-bg: rgba(30, 41, 59, 0.8);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: 20px;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Container */
    --container-max: 1280px;
    --container-padding: 1.5rem;
    
    /* Header */
    --header-height: 72px;
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #F8FAFC;
    --bg-secondary: #FFFFFF;
    --bg-tertiary: #F1F5F9;
    
    --text-primary: #1E293B;
    --text-secondary: #475569;
    --text-muted: #94A3B8;
    
    --border: #E2E8F0;
    --border-light: #CBD5E1;
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
    --shadow-xl: 0 25px 50px rgba(0,0,0,0.15);
    
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(0, 0, 0, 0.1);
}

/* ============================================================================
   RESET & BASE
   ============================================================================ */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-sm) var(--space-md);
    background: var(--primary);
    color: white;
    border-radius: var(--radius-md);
    z-index: 9999;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--space-md);
}

/* Links */
a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-hover);
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Lists */
ul, ol {
    list-style: none;
}

/* Buttons */
button {
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

/* Inputs */
input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ============================================================================
   UTILITIES
   ============================================================================ */

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

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================================================
   HEADER
   ============================================================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.header.scrolled {
    box-shadow: var(--shadow-lg);
}

.header.hidden {
    transform: translateY(-100%);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: var(--space-lg);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-primary);
    font-weight: 700;
    font-size: var(--text-xl);
}

.logo-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: var(--radius-lg);
    font-weight: 800;
}

/* Nav Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-link svg {
    width: 18px;
    height: 18px;
}

.nav-cta {
    background: var(--primary);
    color: white !important;
}

.nav-cta:hover {
    background: var(--primary-hover);
}

/* Nav Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.theme-toggle,
.search-toggle,
.menu-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.theme-toggle:hover,
.search-toggle:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

[data-theme="light"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

/* Hamburger */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
}

.hamburger::before { transform: translateY(-7px); }
.hamburger::after { transform: translateY(5px); }

.menu-toggle.active .hamburger { background: transparent; }
.menu-toggle.active .hamburger::before { transform: rotate(45deg); }
.menu-toggle.active .hamburger::after { transform: rotate(-45deg) translateY(-2px); }

/* ============================================================================
   SEARCH OVERLAY
   ============================================================================ */

.search-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 20vh;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-container {
    width: 100%;
    max-width: 600px;
    padding: var(--space-lg);
}

.search-form {
    display: flex;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.search-input {
    flex: 1;
    padding: var(--space-lg) var(--space-xl);
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: var(--text-lg);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-input:focus {
    outline: none;
}

.search-submit {
    padding: var(--space-lg) var(--space-xl);
    color: var(--primary);
}

.search-close {
    position: absolute;
    top: var(--space-xl);
    right: var(--space-xl);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.search-close:hover {
    opacity: 1;
}

/* ============================================================================
   MOBILE MENU
   ============================================================================ */

.mobile-menu {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    z-index: 1500;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform var(--transition-slow);
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border);
}

.mobile-menu-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-lg);
}

.mobile-search {
    display: flex;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-xl);
}

.mobile-search input {
    flex: 1;
    padding: var(--space-md) var(--space-lg);
    background: transparent;
    border: none;
    color: var(--text-primary);
}

.mobile-search button {
    padding: var(--space-md) var(--space-lg);
    color: var(--primary);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-xl);
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    color: var(--text-primary);
    border-radius: var(--radius-lg);
    transition: background var(--transition-fast);
}

.mobile-nav-link:hover {
    background: var(--bg-secondary);
}

.mobile-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--primary);
    color: white;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-xl);
}

.mobile-theme {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    border-top: 1px solid var(--border);
    margin-bottom: var(--space-lg);
}

.mobile-theme-btn {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
}

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

.mobile-social {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
}

.mobile-social a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
}

/* ============================================================================
   MAIN CONTENT
   ============================================================================ */

#main-content {
    padding-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
}

/* ============================================================================
   FOOTER
   ============================================================================ */

.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: var(--space-3xl) 0 var(--space-xl);
    margin-top: var(--space-3xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr) 1.5fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
}

.footer-brand .logo {
    margin-bottom: var(--space-md);
}

.footer-tagline {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.footer-social {
    display: flex;
    gap: var(--space-sm);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--primary);
    color: white;
}

.footer-links h4 {
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-newsletter h4 {
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.footer-newsletter > p {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    margin-bottom: var(--space-md);
}

.newsletter-form {
    display: flex;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.newsletter-form input {
    flex: 1;
    padding: var(--space-md);
    background: transparent;
    border: none;
    color: var(--text-primary);
}

.newsletter-form button {
    padding: var(--space-md) var(--space-lg);
    background: var(--primary);
    color: white;
}

.newsletter-privacy {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-top: var(--space-sm);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
}

.footer-legal a {
    color: var(--text-muted);
    font-size: var(--text-sm);
}

.footer-copyright {
    color: var(--text-muted);
    font-size: var(--text-sm);
}

.footer-credits img {
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.footer-credits img:hover {
    opacity: 1;
}

/* ============================================================================
   CHAT WIDGET
   ============================================================================ */

.chat-widget {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    z-index: 1000;
}

.chat-widget-toggle {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-fast);
}

.chat-widget-toggle:hover {
    transform: scale(1.05);
}

.chat-widget-toggle .icon-close { display: none; }
.chat-widget.active .chat-widget-toggle .icon-open { display: none; }
.chat-widget.active .chat-widget-toggle .icon-close { display: block; }

.chat-widget-window {
    position: absolute;
    bottom: calc(100% + var(--space-md));
    right: 0;
    width: 380px;
    max-height: 500px;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-slow);
}

.chat-widget.active .chat-widget-window {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.chat-widget-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.chat-widget-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
}

.chat-widget-status {
    font-size: var(--text-xs);
    opacity: 0.8;
}

.chat-widget-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    min-height: 300px;
}

.chat-message {
    max-width: 85%;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-lg);
}

.chat-message-bot {
    align-self: flex-start;
    background: var(--bg-tertiary);
}

.chat-message-user {
    align-self: flex-end;
    background: var(--primary);
    color: white;
}

.chat-widget-form {
    display: flex;
    padding: var(--space-md);
    border-top: 1px solid var(--border);
    gap: var(--space-sm);
}

.chat-widget-form input {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius-lg);
    color: var(--text-primary);
}

.chat-widget-form button {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: white;
    border-radius: var(--radius-full);
}

/* ============================================================================
   BLOG & ARTICLES
   ============================================================================ */

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
}

/* Article Card */
.article-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.article-card-image {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--bg-tertiary);
}

.article-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.article-card:hover .article-card-image img {
    transform: scale(1.05);
}

.article-card-image .placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}

.article-card-image .placeholder svg {
    width: 48px;
    height: 48px;
    opacity: 0.5;
}

.article-card-category {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    padding: var(--space-xs) var(--space-sm);
    background: var(--primary);
    color: white;
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.article-card-content {
    padding: var(--space-lg);
}

.article-card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.article-card-meta svg {
    width: 14px;
    height: 14px;
}

.article-card-title {
    font-size: var(--text-xl);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.article-card-title a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.article-card-title a:hover {
    color: var(--primary);
}

.article-card-excerpt {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-md);
    border-top: 1px solid var(--border);
}

.article-card-readmore {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--primary);
    font-size: var(--text-sm);
    font-weight: 600;
    text-decoration: none;
    transition: gap var(--transition-fast);
}

.article-card-readmore:hover {
    gap: var(--space-sm);
}

.article-card-readmore svg {
    width: 16px;
    height: 16px;
}

/* Featured Article */
.article-featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-xl);
}

.article-featured .article-card-image {
    aspect-ratio: 16/10;
    border-radius: var(--radius-xl);
}

.article-featured .article-card-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-xl);
}

.article-featured .article-card-title {
    font-size: var(--text-3xl);
}

@media (max-width: 768px) {
    .article-featured {
        grid-template-columns: 1fr;
    }
    
    .article-featured .article-card-title {
        font-size: var(--text-2xl);
    }
}

/* Single Article */
.article-single {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-3xl) 0;
}

.article-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.article-header .article-category {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--primary);
    color: white;
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
    text-decoration: none;
}

.article-header h1 {
    font-size: var(--text-4xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

.article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    color: var(--text-muted);
    font-size: var(--text-sm);
}

.article-meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.article-meta svg {
    width: 16px;
    height: 16px;
}

.article-featured-image {
    margin: var(--space-2xl) 0;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.article-featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Article Content */
.article-content {
    font-size: var(--text-lg);
    line-height: 1.8;
    color: var(--text-secondary);
}

.article-content h2 {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: var(--space-2xl) 0 var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--primary);
}

.article-content h3 {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--space-xl) 0 var(--space-md);
}

.article-content h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--space-lg) 0 var(--space-md);
}

.article-content p {
    margin-bottom: var(--space-lg);
}

.article-content a {
    color: var(--primary);
    text-decoration: underline;
    text-decoration-color: transparent;
    transition: text-decoration-color var(--transition-fast);
}

.article-content a:hover {
    text-decoration-color: var(--primary);
}

.article-content ul,
.article-content ol {
    margin: var(--space-lg) 0;
    padding-left: var(--space-xl);
}

.article-content li {
    margin-bottom: var(--space-sm);
}

.article-content blockquote {
    margin: var(--space-xl) 0;
    padding: var(--space-lg) var(--space-xl);
    background: var(--bg-tertiary);
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    font-style: italic;
}

.article-content pre {
    margin: var(--space-lg) 0;
    padding: var(--space-lg);
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
}

.article-content code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    padding: 0.1em 0.4em;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.article-content pre code {
    padding: 0;
    background: none;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    margin: var(--space-lg) 0;
}

.article-content table {
    width: 100%;
    margin: var(--space-lg) 0;
    border-collapse: collapse;
}

.article-content th,
.article-content td {
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--border);
    text-align: left;
}

.article-content th {
    background: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-primary);
}

/* FAQs Section */
.article-faqs {
    margin-top: var(--space-3xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--border);
}

.article-faqs h2 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-xl);
    color: var(--text-primary);
}

.faq-item {
    margin-bottom: var(--space-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: var(--text-base);
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-tertiary);
}

.faq-question svg {
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--text-secondary);
    font-size: var(--text-base);
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    display: block;
}

/* Article Footer */
.article-footer {
    margin-top: var(--space-3xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--border);
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.article-tag {
    padding: var(--space-xs) var(--space-md);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.article-tag:hover {
    background: var(--primary);
    color: white;
}

.article-share {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.article-share-label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-muted);
}

.article-share-buttons {
    display: flex;
    gap: var(--space-sm);
}

.article-share-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: all var(--transition-fast);
}

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

.article-share-btn svg {
    width: 18px;
    height: 18px;
}

/* Related Articles */
.related-articles {
    margin-top: var(--space-3xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--border);
}

.related-articles h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-xl);
    color: var(--text-primary);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-lg);
}

/* ============================================================================
   CATEGORY PAGE
   ============================================================================ */

.category-header {
    text-align: center;
    padding: var(--space-3xl) 0;
    margin-bottom: var(--space-2xl);
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border-radius: var(--radius-2xl);
}

.category-header h1 {
    font-size: var(--text-4xl);
    font-weight: 800;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.category-description {
    max-width: 600px;
    margin: 0 auto;
    color: var(--text-secondary);
    font-size: var(--text-lg);
    line-height: 1.6;
}

.category-meta {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    margin-top: var(--space-lg);
    color: var(--text-muted);
    font-size: var(--text-sm);
}

.category-meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

/* Subcategories */
.subcategories {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.subcategory-link {
    padding: var(--space-sm) var(--space-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.subcategory-link:hover,
.subcategory-link.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-3xl);
}

.category-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    text-decoration: none;
    transition: all var(--transition-base);
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.category-card-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-xl);
    color: white;
}

.category-card-icon svg {
    width: 28px;
    height: 28px;
}

.category-card-title {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.category-card-count {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* ============================================================================
   PAGINATION
   ============================================================================ */

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-3xl);
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

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

.pagination .active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.pagination .disabled {
    opacity: 0.5;
    pointer-events: none;
}

.pagination svg {
    width: 18px;
    height: 18px;
}

/* ============================================================================
   SIDEBAR
   ============================================================================ */

.blog-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-2xl);
}

.blog-main {
    min-width: 0;
}

.blog-sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--space-xl));
    height: fit-content;
}

.sidebar-widget {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.sidebar-widget-title {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--primary);
}

.sidebar-search input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: var(--text-sm);
}

.sidebar-categories a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) 0;
    color: var(--text-secondary);
    text-decoration: none;
    border-bottom: 1px solid var(--border);
    transition: color var(--transition-fast);
}

.sidebar-categories a:last-child {
    border-bottom: none;
}

.sidebar-categories a:hover {
    color: var(--primary);
}

.sidebar-categories span {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.sidebar-popular li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border);
}

.sidebar-popular li:last-child {
    border-bottom: none;
}

.sidebar-popular a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--text-sm);
    line-height: 1.5;
    transition: color var(--transition-fast);
}

.sidebar-popular a:hover {
    color: var(--primary);
}

@media (max-width: 1024px) {
    .blog-layout {
        grid-template-columns: 1fr;
    }
    
    .blog-sidebar {
        position: static;
    }
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-brand {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 64px;
        --container-padding: 1rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-brand {
        grid-column: auto;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .chat-widget-window {
        width: calc(100vw - var(--space-xl) * 2);
        right: calc(-1 * var(--space-lg) + var(--space-md));
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}