/*
Theme Name: Packet Bytes
Description: A professional WordPress theme for networking blog "Packet Bytes" featuring technical articles on service provider networks, routing protocols, and practical network engineering guides. Designed with Forward Networks inspired aesthetics.
Author: Custom Development
Version: 2.0
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: packet-bytes

This theme supports:
- Custom networking blog layouts
- Integrated practical content sections
- Multi-page article support
- Professional networking industry design
- Mobile-responsive layouts
*/

/* ==========================================================================
   CSS Custom Properties (Variables)
   ========================================================================== */
:root {
    /* Colors - Modern Tech Networking Theme */
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #0f3460;
    --highlight-color: #e94560;
    --dark-grey: #0d0d1a;
    --medium-grey: #4a5568;
    --light-grey: #cbd5e0;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --background-white: #ffffff;
    --background-gray: #f7fafc;
    --background-dark: #1a1a2e;
    --border-light: #e2e8f0;
    --border-medium: #cbd5e0;
    --accent-green: #48bb78;
    --accent-orange: #ed8936;
    --accent-blue: #4299e1;
    --hover-color: #2d3748;
    --code-bg: #2d3748;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --card-shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'Fira Code', 'Monaco', 'Cascadia Code', 'Roboto Mono', monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* ==========================================================================
   Reset and Base Styles
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    line-height: 1.6;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--background-gray);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

h5 {
    font-size: 1.125rem;
}

h6 {
    font-size: 1rem;
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

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

code {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    background-color: var(--background-gray);
    padding: 0.125rem 0.25rem;
    border-radius: 0.25rem;
    color: var(--text-primary);
}

pre {
    font-family: var(--font-mono);
    background-color: var(--text-primary);
    color: var(--background-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}

pre code {
    background: none;
    padding: 0;
    color: inherit;
}

blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    font-style: italic;
    color: var(--text-secondary);
}

/* ==========================================================================
   Layout Components
   ========================================================================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
}

/* ==========================================================================
   Header Styles
   ========================================================================== */
.site-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.site-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--background-white);
    text-decoration: none;
    display: flex;
    align-items: center;
}

.site-title a {
    display: flex;
    align-items: center;
    color: var(--background-white);
    text-decoration: none;
    transition: all 0.3s ease;
}

.site-title:hover {
    color: var(--light-grey);
}

/* Navigation Styles */
.main-navigation {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-menu a {
    color: var(--background-white);
    font-weight: 500;
    padding: var(--spacing-sm) 0;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.current {
    color: var(--light-grey);
}

.nav-menu a.current::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--light-grey);
}

.search-toggle {
    background: none;
    border: none;
    color: var(--background-white);
    font-size: 1.125rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: background-color 0.3s ease;
}

.search-toggle:hover {
    background-color: var(--secondary-color);
    color: var(--background-white);
}

/* Mobile Navigation */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    z-index: 1001;
    position: relative;
    -webkit-tap-highlight-color: transparent;
}

.mobile-menu-toggle:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

.hamburger {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 24px;
    pointer-events: none;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--background-white);
    transition: all 0.3s ease;
    pointer-events: none;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .main-navigation {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        max-width: 280px;
        height: calc(100vh - 70px);
        background: var(--background-white);
        box-shadow: 2px 0 10px rgba(0,0,0,0.1);
        transition: left 0.3s ease;
        z-index: 999;
        overflow-y: auto;
        display: flex !important;
        flex-direction: column;
        padding: 0;
    }
    
    .main-navigation.active {
        left: 0;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 0;
        width: 100%;
        list-style: none;
        padding: 0;
        margin: 0;
    }
    
    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid var(--border-light);
        margin: 0;
    }
    
    .nav-menu a {
        display: block;
        padding: 1rem;
        width: 100%;
        color: var(--text-primary) !important;
        text-decoration: none;
        font-weight: 500;
        transition: background-color 0.3s ease;
    }
    
    .nav-menu a:hover,
    .nav-menu a:focus {
        background-color: var(--background-gray);
        color: var(--primary-blue) !important;
    }
    
    .nav-menu .current-menu-item a,
    .nav-menu .current_page_item a {
        color: var(--primary-blue) !important;
        background-color: var(--background-gray);
    }
    
    .search-toggle {
        margin-top: auto;
        padding: 1rem;
        justify-content: center;
        color: var(--text-primary);
    }
    
    /* Overlay when menu is open */
    body.mobile-menu-open::before {
        content: '';
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 998;
    }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--accent-color) 100%);
    color: var(--background-white);
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 600px;
    display: flex;
    align-items: center;
}

/* Background image overlay */
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('assets/images/network-globe.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 1.50;
    z-index: 0;
    filter: contrast(1.3) brightness(0.85) saturate(1.1);
}

/* Dark overlay for better text readability */
.hero-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15, 15, 35, 0.65) 0%, rgba(20, 30, 55, 0.65) 50%, rgba(15, 40, 75, 0.7) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--background-white);
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.hero-content p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: 2px solid transparent;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--highlight-color)) !important;
    color: white !important;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--highlight-color), var(--accent-blue)) !important;
    color: white !important;
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
}

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

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

/* ==========================================================================
   Featured Topics Grid
   ========================================================================== */
.featured-topics {
    padding: 4rem 0;
    background-color: var(--background-white);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.topic-card {
    background-color: var(--background-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.topic-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: linear-gradient(180deg, var(--accent-blue), var(--highlight-color));
    transition: height 0.3s ease;
}

.topic-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--accent-blue);
}

.topic-card:hover::before {
    height: 100%;
}

.topic-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.topic-card p {
    margin-bottom: var(--spacing-lg);
}

.topic-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.topic-tag {
    background-color: var(--background-gray);
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 9999px;
}

/* ==========================================================================
   Latest Articles Section
   ========================================================================== */
.latest-articles {
    padding: var(--spacing-3xl) 0;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(360px, 100%), 1fr));
    gap: 2.5rem;
}

.article-card {
    background-color: var(--background-white);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.article-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--accent-blue);
}

.article-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--medium-grey), var(--primary-color));
    flex-shrink: 0;
}

.article-content {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-light);
}

.article-date {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.read-time {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.article-card h3 {
    margin-bottom: var(--spacing-md);
}

.article-card h3 a {
    color: var(--text-primary);
    text-decoration: none;
}

.article-card h3 a:hover {
    color: var(--primary-color);
}

.article-excerpt {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.article-tag {
    background-color: var(--background-gray);
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 9999px;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

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

/* ==========================================================================
   Footer Styles
   ========================================================================== */
.site-footer {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-grey) 100%);
    color: var(--background-white);
    padding: 3rem 0 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    color: var(--background-white);
    margin-bottom: var(--spacing-md);
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-section a:hover {
    color: var(--light-grey);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--background-white);
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.social-link:hover {
    background-color: var(--medium-grey);
    color: var(--background-white);
}

.social-link svg {
    display: block !important;
    width: 24px !important;
    height: 24px !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.social-link svg path {
    fill: white !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.hidden {
    display: none !important;
}

.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;
}

/* ==========================================================================
   Animations & Keyframes
   ========================================================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

/* Apply animations */
.site-title {
    animation: slideInLeft 0.6s ease-out;
}

.logo-icon {
    display: inline-block;
    margin-right: 0.5rem;
    animation: float 3s ease-in-out infinite;
    font-size: 1rem;
}

.hero-content h1 {
    animation: fadeInUp 0.8s ease-out;
}

.hero-content p {
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero-buttons {
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.topic-card {
    animation: fadeInUp 0.6s ease-out backwards;
}

.topic-card:nth-child(1) { animation-delay: 0.1s; }
.topic-card:nth-child(2) { animation-delay: 0.2s; }
.topic-card:nth-child(3) { animation-delay: 0.3s; }
.topic-card:nth-child(4) { animation-delay: 0.4s; }

.article-card {
    animation: fadeInUp 0.6s ease-out backwards;
}

.article-card:nth-child(1) { animation-delay: 0.1s; }
.article-card:nth-child(2) { animation-delay: 0.2s; }
.article-card:nth-child(3) { animation-delay: 0.3s; }

/* ==========================================================================
   Blog Archive & Post Styling
   ========================================================================== */
.archive-header {
    padding: 3rem 0;
    text-align: center;
    background: linear-gradient(135deg, var(--background-white) 0%, var(--background-gray) 100%);
    border-bottom: 2px solid var(--border-light);
    animation: fadeIn 0.6s ease-out;
}

.archive-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    animation: fadeInUp 0.6s ease-out;
}

.breadcrumb {
    margin-top: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-light);
    animation: fadeIn 0.8s ease-out;
}

.breadcrumb a {
    color: var(--accent-blue);
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: var(--highlight-color);
}

.filter-bar {
    padding: 1.5rem 0;
    background-color: var(--background-white);
    border-bottom: 1px solid var(--border-light);
    animation: fadeIn 0.6s ease-out;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    padding: 3rem 0;
}

.post-card {
    background-color: var(--background-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-light);
    animation: fadeInUp 0.6s ease-out backwards;
}

.post-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--accent-blue);
}

.post-card:nth-child(1) { animation-delay: 0.1s; }
.post-card:nth-child(2) { animation-delay: 0.2s; }
.post-card:nth-child(3) { animation-delay: 0.3s; }
.post-card:nth-child(4) { animation-delay: 0.4s; }
.post-card:nth-child(5) { animation-delay: 0.5s; }
.post-card:nth-child(6) { animation-delay: 0.6s; }

.post-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.post-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.3) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.post-card:hover .post-image::after {
    opacity: 1;
}

.post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.post-card:hover .post-image img {
    transform: scale(1.1);
}

.post-content {
    padding: 1.5rem;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-light);
}

.post-category {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-blue), #3b82f6);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    padding: 3rem 0;
    animation: fadeIn 1s ease-out;
}

.pagination a,
.pagination span {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-light);
    border-radius: 6px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.pagination a:hover {
    background-color: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}

.pagination .current {
    background: linear-gradient(135deg, var(--accent-blue), var(--highlight-color));
    color: white;
    border-color: transparent;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 768px) {
    :root {
        --spacing-3xl: 2rem;
        --spacing-2xl: 1.5rem;
    }
    
    /* Hero */
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1.125rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    /* Grids */
    .topics-grid {
        grid-template-columns: 1fr;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    /* Header actions */
    .header-actions {
        gap: 0.5rem;
    }
    
    .search-toggle {
        padding: 0.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .header-container {
        padding: var(--spacing-sm) 0;
    }
    
    .site-branding,
    .site-branding h1,
    .site-title {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .site-branding h1 {
        font-size: 1rem;
    }
    
    .hero-section {
        padding: var(--spacing-xl) 0;
        display: block !important;
    }
    
    .hero-content,
    .hero-content h1,
    .hero-content p {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .featured-topics,
    .latest-articles {
        padding: var(--spacing-xl) 0;
    }
    
    .topic-card,
    .article-content {
        padding: var(--spacing-md);
    }
    
    /* Section titles */
    .section-title {
        font-size: 1.75rem;
    }
}