/* === Chirpy-Inspired Blog Styles === */

/* CSS Variables for Theme */
:root {
    --sidebar-width: 260px;
    --topbar-height: 3rem;
    
    /* Light Theme Colors */
    --body-bg: #fafafa;
    --main-bg: #ffffff;
    --text-color: #34343c;
    --text-muted: #757575;
    --heading-color: #2a2a2a;
    --link-color: #2a408e;
    --link-color-rgb: 42, 64, 142;
    --link-hover: #1d2d6b;
    --border-color: #ececec;
    --sidebar-bg: #f6f8fa;
    --sidebar-active-color: #2a408e;
    --sidebar-muted: #828282;
    --card-bg: #ffffff;
    --card-border: #e9ecef;
    --card-shadow: rgba(0, 0, 0, 0.04);
    --code-bg: #f6f8fa;
    --code-border: #e1e4e8;
    --highlight-bg: #fff5b1;
    --btn-bg: #f1f3f5;
    --btn-hover: #e9ecef;
    --scrollbar-track: #f1f3f5;
    --scrollbar-thumb: #c1c9d2;
}

[data-theme="dark"] {
    --body-bg: #1e1e1e;
    --main-bg: #252525;
    --text-color: #d3d3d3;
    --text-muted: #868686;
    --heading-color: #e0e0e0;
    --link-color: #5e96e0;
    --link-color-rgb: 94, 150, 224;
    --link-hover: #82b1ff;
    --border-color: #3d3d3d;
    --sidebar-bg: #1b1b1e;
    --sidebar-active-color: #82b1ff;
    --sidebar-muted: #6c6c6c;
    --card-bg: #2a2a2a;
    --card-border: #3d3d3d;
    --card-shadow: rgba(0, 0, 0, 0.3);
    --code-bg: #2d2d2d;
    --code-border: #3d3d3d;
    --highlight-bg: #3d3d00;
    --btn-bg: #2a2a2a;
    --btn-hover: #353535;
    --scrollbar-track: #2a2a2a;
    --scrollbar-thumb: #4a4a4a;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-color);
    background-color: var(--body-bg);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* === Sidebar === */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    z-index: 100;
    transition: transform 0.3s ease, background-color 0.3s ease;
    overflow-y: auto;
}

.sidebar-content {
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Profile Section */
.profile-section {
    text-align: center;
    margin-bottom: 2rem;
}

.avatar-link {
    display: inline-block;
    margin-bottom: 1rem;
}

.avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
    margin: 0 auto;
    transition: transform 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.avatar:hover {
    transform: scale(1.05);
}

.site-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--heading-color);
    margin-bottom: 0.25rem;
}

.site-subtitle {
    font-size: 0.875rem;
    color: var(--sidebar-muted);
}

/* Sidebar Navigation */
.sidebar-nav ul {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.sidebar-nav li {
    margin-bottom: 0.25rem;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 0.65rem 1rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-weight: 500;
}

.sidebar-nav a i {
    width: 20px;
    margin-right: 0.75rem;
    font-size: 1.1rem;
}

.sidebar-nav a:hover {
    background-color: var(--btn-hover);
    color: var(--sidebar-active-color);
}

.sidebar-nav a.active {
    background-color: var(--btn-bg);
    color: var(--sidebar-active-color);
    font-weight: 600;
}

/* Social Links */
.social-links {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 6px;
    color: var(--text-muted);
    background-color: var(--btn-bg);
    text-decoration: none;
    transition: all 0.2s ease;
    font-size: 1.1rem;
}

.social-links a:hover {
    background-color: var(--sidebar-active-color);
    color: white;
    transform: translateY(-2px);
}

/* Theme Toggle */
.theme-toggle-wrapper {
    margin-top: auto;
    text-align: center;
}

.theme-toggle,
.theme-toggle-mobile {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: none;
    background-color: var(--btn-bg);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1.1rem;
}

.theme-toggle:hover,
.theme-toggle-mobile:hover {
    background-color: var(--btn-hover);
    transform: rotate(20deg);
}

/* === Mobile Header === */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--topbar-height);
    background-color: var(--sidebar-bg);
    border-bottom: 1px solid var(--border-color);
    align-items: center;
    padding: 0 1rem;
    z-index: 99;
}

.sidebar-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--text-color);
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-title {
    flex: 1;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--heading-color);
}

/* === Main Content === */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    background-color: var(--body-bg);
    transition: margin-left 0.3s ease;
}

/* Modern Page Header */
.page-header-modern {
    background: linear-gradient(135deg, var(--link-color) 0%, var(--sidebar-active-color) 100%);
    padding: 4rem 2rem 5rem;
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
    border-radius: 0 0 24px 24px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

/* Animated gradient overlay */
.page-header-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        45deg,
        rgba(255, 255, 255, 0.1) 0%,
        rgba(255, 255, 255, 0.05) 50%,
        rgba(255, 255, 255, 0.1) 100%
    );
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
    opacity: 0.6;
}

/* Geometric shapes decoration */
.page-header-modern::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: url('data:image/svg+xml,<svg width="1200" height="100" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="none" viewBox="0 0 1200 100"><path d="M0,50 Q300,0 600,50 T1200,50 L1200,100 L0,100 Z" fill="rgba(255,255,255,0.1)"/><path d="M0,70 Q300,40 600,70 T1200,70 L1200,100 L0,100 Z" fill="rgba(255,255,255,0.05)"/></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.8;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Floating particles decoration */
.page-header-modern .header-content::before,
.page-header-modern .header-content::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    animation: float 6s ease-in-out infinite;
}

.page-header-modern .header-content::before {
    width: 80px;
    height: 80px;
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.page-header-modern .header-content::after {
    width: 60px;
    height: 60px;
    bottom: 20%;
    left: 5%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) scale(1);
        opacity: 0.3;
    }
    50% {
        transform: translateY(-20px) scale(1.1);
        opacity: 0.6;
    }
}

.header-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.header-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: rgba(255, 255, 255, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 30px;
    color: white;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.header-badge:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.header-badge i {
    font-size: 1rem;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.page-title-modern {
    font-size: 2.75rem;
    font-weight: 900;
    color: white;
    margin-bottom: 1rem;
    line-height: 1.2;
    text-shadow: 0 3px 15px rgba(0, 0, 0, 0.2);
    letter-spacing: -0.5px;
    animation: fadeInUp 0.6s ease;
}

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

.page-description-modern {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.7;
    margin-bottom: 2rem;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    max-width: 700px;
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

/* Modern Search Container */
.search-container-modern {
    margin-top: 2.5rem;
    animation: fadeInUp 0.6s ease 0.4s backwards;
}

.search-wrapper {
    display: flex;
    align-items: center;
    background: white;
    border-radius: 16px;
    padding: 0.65rem 0.75rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15), 
                0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
}

.search-wrapper:focus-within {
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2), 
                0 8px 16px rgba(0, 0, 0, 0.15);
    transform: translateY(-3px) scale(1.01);
    border-color: rgba(255, 255, 255, 0.5);
}

.search-icon {
    padding: 0 1rem;
    color: var(--text-muted);
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.search-wrapper:focus-within .search-icon {
    color: var(--link-color);
    transform: scale(1.1);
}

.search-input-modern {
    flex: 1;
    border: none;
    outline: none;
    padding: 0.85rem 0.5rem;
    font-size: 1rem;
    color: var(--text-color);
    background: transparent;
    font-family: inherit;
}

.search-input-modern::placeholder {
    color: var(--text-muted);
    font-weight: 400;
}

.search-btn-modern {
    padding: 0.85rem 2rem;
    background: var(--link-color);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.search-btn-modern:hover {
    background: var(--link-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.search-btn-modern:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* Filter Section */
.filter-section {
    padding: 0 2rem;
    margin-bottom: 2rem;
}

.filter-tabs {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-tab {
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
    color: var(--text-muted);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    font-size: 0.9rem;
}

.filter-tab:hover {
    border-color: var(--link-color);
    color: var(--link-color);
}

.filter-tab.active {
    background-color: var(--link-color);
    color: white;
    border-color: var(--link-color);
}

.filter-tab i {
    margin-right: 0.5rem;
}

/* Search Container */
.search-container {
    display: flex;
    gap: 0.5rem;
    max-width: 600px;
    margin: 1.5rem auto 0;
}

.search-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--card-bg);
    color: var(--text-color);
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--link-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-btn {
    padding: 0.75rem 1.5rem;
    background-color: var(--link-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.search-btn:hover {
    background-color: var(--link-hover);
    transform: translateY(-1px);
}

/* Active Filters */
.active-filters {
    padding: 0 2rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-label {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.active-filters-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    flex: 1;
}

.active-filter-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.75rem;
    background-color: var(--link-color);
    color: white;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.active-filter-tag button {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    font-size: 0.9rem;
}

.active-filter-tag button:hover {
    opacity: 0.8;
}

.clear-filters-btn {
    padding: 0.4rem 1rem;
    background-color: var(--btn-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.clear-filters-btn:hover {
    background-color: var(--btn-hover);
    border-color: var(--link-color);
}

/* === Blog List View === */
.blog-list-view {
    padding: 0 2rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
    align-items: start;
}

/* Posts List */
.posts-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.post-item {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 1.75rem;
    transition: all 0.2s ease;
    cursor: pointer;
    box-shadow: 0 2px 4px var(--card-shadow);
}

.post-item.pinned {
    border-left: 4px solid var(--link-color);
    background: linear-gradient(90deg, var(--link-color)08 0%, var(--card-bg) 30%);
}

.post-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--card-shadow);
    border-color: var(--link-color);
}

/* Pin indicator */
.pin-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.75rem;
    background: var(--link-color);
    color: white;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-right: 0.5rem;
}

.pin-indicator i {
    font-size: 0.75rem;
}

/* Post item image */
.post-item-image {
    margin: 1rem 0;
    border-radius: 6px;
    overflow: hidden;
}

.post-item-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.post-item:hover .post-item-image img {
    transform: scale(1.05);
}

.post-item-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

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

.post-item-category {
    padding: 0.2rem 0.65rem;
    background-color: var(--link-color);
    color: white;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.post-item-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--heading-color);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.post-item-excerpt {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.post-item-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.post-tag {
    padding: 0.25rem 0.75rem;
    background-color: var(--code-bg);
    color: var(--text-muted);
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Trending Sidebar */
.trending-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.trending-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px var(--card-shadow);
}

.trending-card h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--heading-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.trending-card h3 i {
    color: var(--link-color);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-cloud .post-tag {
    cursor: pointer;
    transition: all 0.2s ease;
}

.tag-cloud .post-tag:hover {
    background-color: var(--link-color);
    color: white;
}

.recent-posts-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.recent-post-link {
    display: block;
    padding: 0.5rem;
    border-radius: 4px;
    color: var(--text-color);
    text-decoration: none;
    transition: background-color 0.2s ease;
    font-size: 0.9rem;
}

.recent-post-link:hover {
    background-color: var(--btn-hover);
}

.recent-post-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.recent-post-title {
    font-weight: 600;
    color: var(--heading-color);
}

/* Categories List */
.categories-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.category-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-color);
    text-decoration: none;
}

.category-item:hover {
    background-color: var(--btn-hover);
    color: var(--link-color);
}

.category-item.active {
    background-color: var(--link-color);
    color: white;
}

.category-name {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.category-count {
    background-color: var(--code-bg);
    color: var(--text-muted);
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
}

.category-item.active .category-count {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
}

/* Back to List Button */
.back-to-list-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    background-color: var(--btn-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-color);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 1.5rem;
}

.back-to-list-btn:hover {
    background-color: var(--link-color);
    color: white;
    border-color: var(--link-color);
    transform: translateX(-3px);
}

/* Post Category Badge in Header */
.post-category {
    padding: 0.3rem 0.85rem;
    background-color: var(--link-color);
    color: white;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

/* === Single Post View === */
.blog-post-view {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.post-wrapper {
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: 2rem;
    align-items: start;
}

/* Post Content */
.post-content {
    background-color: var(--main-bg);
    border-radius: 8px;
    padding: 2.5rem;
    box-shadow: 0 2px 8px var(--card-shadow);
}

.post-header {
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.post-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--heading-color);
    line-height: 1.3;
    margin-bottom: 1.5rem;
}

/* Enhanced Post Metadata */
.post-meta-enhanced {
    background: var(--code-bg);
    border-radius: 10px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--link-color);
}

.meta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    align-items: center;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-color);
    font-size: 0.95rem;
    font-weight: 500;
}

.meta-item i {
    color: var(--link-color);
    font-size: 1rem;
}

.post-category-badge {
    padding: 0.3rem 0.85rem;
    background: var(--link-color);
    color: white;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

/* Enhanced Tags Display */
/* Featured Image */
.post-featured-image {
    margin: 2rem 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.post-featured-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.image-caption {
    padding: 1rem;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    font-style: italic;
}

/* Post Tags Wrapper (in footer) */
.post-tags-wrapper {
    background: linear-gradient(135deg, var(--card-bg) 0%, rgba(var(--link-color-rgb), 0.02) 100%);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.tags-label {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-color);
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--border-color);
}

.tags-label i {
    color: var(--link-color);
    font-size: 1.1rem;
}

.post-tags-enhanced {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.post-tags-enhanced .post-tag {
    padding: 0.4rem 1rem;
    background: linear-gradient(135deg, var(--link-color), var(--sidebar-active-color));
    color: white;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

.post-tags-enhanced .post-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* Markdown Content */
.markdown-content {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-color);
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
    font-weight: 700;
    color: var(--heading-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.markdown-content h1 { font-size: 2rem; }
.markdown-content h2 { font-size: 1.75rem; }
.markdown-content h3 { font-size: 1.5rem; }
.markdown-content h4 { font-size: 1.25rem; }

.markdown-content p {
    margin-bottom: 1.25rem;
}

.markdown-content a {
    color: var(--link-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease;
}

.markdown-content a:hover {
    border-bottom-color: var(--link-color);
}

.markdown-content ul,
.markdown-content ol {
    margin-bottom: 1.25rem;
    padding-left: 2rem;
}

.markdown-content li {
    margin-bottom: 0.5rem;
}

.markdown-content code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    background-color: var(--code-bg);
    color: var(--text-color);
    border: 1px solid var(--code-border);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.markdown-content pre {
    background-color: #282c34;
    border: 1px solid var(--code-border);
    border-radius: 8px;
    padding: 1.5rem;
    overflow-x: auto;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.markdown-content pre code {
    background: none;
    border: none;
    padding: 0;
    color: #abb2bf;
    font-size: 0.95em;
    line-height: 1.6;
}

/* Better code highlighting for light theme */
[data-theme="light"] .markdown-content pre {
    background-color: #fafafa;
    border-color: #e1e4e8;
}

[data-theme="light"] .markdown-content pre code {
    color: #24292e;
}

.markdown-content blockquote {
    border-left: 4px solid var(--link-color);
    padding-left: 1.25rem;
    margin: 1.5rem 0;
    color: var(--text-muted);
    font-style: italic;
}

.markdown-content img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin: 1.5rem 0;
}

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.95rem;
}

.markdown-content th,
.markdown-content td {
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    text-align: left;
}

.markdown-content th {
    background-color: var(--code-bg);
    font-weight: 600;
}

/* Post Footer */
.post-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

/* Post Metadata Section */
.post-metadata-section {
    background: linear-gradient(135deg, var(--card-bg) 0%, rgba(var(--link-color-rgb), 0.03) 100%);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.metadata-header {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    color: var(--text-color);
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--border-color);
}

.metadata-header i {
    color: var(--link-color);
    font-size: 1.2rem;
}

/* Metadata Grid */
.metadata-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.metadata-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    transition: all 0.3s ease;
}

.metadata-item:hover {
    border-color: var(--link-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.metadata-key {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    text-transform: capitalize;
}

.metadata-key i {
    color: var(--link-color);
    font-size: 0.85rem;
}

.metadata-value-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    align-items: center;
}

/* Metadata tags (for array values) */
.metadata-tag {
    padding: 0.45rem 0.95rem;
    background: linear-gradient(135deg, var(--link-color) 0%, rgba(var(--link-color-rgb), 0.8) 100%);
    color: white;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.metadata-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--link-color-rgb), 0.3);
}

/* Metadata value (for string values) */
.metadata-value {
    color: var(--text-color);
    font-size: 0.95rem;
    font-weight: 500;
    line-height: 1.5;
}

/* Legacy keyword tag support */
.keyword-tag {
    padding: 0.5rem 1.1rem;
    background: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--text-color);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.keyword-tag:hover {
    background: var(--link-color);
    color: white;
    border-color: var(--link-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

/* Table of Contents Panel */
.toc-panel {
    position: sticky;
    top: 2rem;
    height: fit-content;
    max-height: calc(100vh - 4rem);
    overflow-y: auto;
}

.toc-wrapper {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px var(--card-shadow);
}

.toc-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--heading-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.toc-nav {
    font-size: 0.85rem;
}

.toc-nav ul {
    list-style: none;
    padding-left: 0;
}

.toc-nav li {
    margin-bottom: 0.5rem;
}

.toc-nav a {
    color: var(--text-muted);
    text-decoration: none;
    display: block;
    padding: 0.25rem 0;
    transition: color 0.2s ease;
}

.toc-nav a:hover,
.toc-nav a.active {
    color: var(--link-color);
}

.toc-nav ul ul {
    padding-left: 1rem;
    margin-top: 0.25rem;
}

/* Post Navigation */
.post-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 2rem;
}

.nav-post-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px var(--card-shadow);
}

.nav-post-btn:hover {
    border-color: var(--link-color);
    transform: translateY(-2px);
}

.nav-post-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-post-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-muted);
}

.nav-post-title {
    font-weight: 600;
    color: var(--heading-color);
    font-size: 0.95rem;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: var(--link-color);
    color: white;
    border: none;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 50;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

/* Loading State */
.loading {
    text-align: center;
    padding: 4rem 2rem;
}

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

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

/* Sidebar Overlay (Mobile) */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 99;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
}

/* === Archive View === */
.archive-view {
    padding: 0 2rem 3rem;
}

.archive-container {
    max-width: 900px;
    margin: 0 auto;
}

.archive-timeline {
    position: relative;
    padding-left: 3rem;
}

.archive-timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--link-color), var(--sidebar-active-color));
}

.archive-year {
    margin-bottom: 3rem;
}

.year-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    position: relative;
}

.year-marker {
    position: absolute;
    left: -3rem;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--link-color);
    border: 4px solid var(--body-bg);
    box-shadow: 0 0 0 2px var(--link-color);
}

.year-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--heading-color);
}

.year-count {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.archive-month {
    margin-bottom: 2rem;
}

.month-header {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--link-color);
    margin-bottom: 1rem;
    padding-left: 0.5rem;
}

.archive-posts-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.archive-post-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.archive-post-item:hover {
    border-color: var(--link-color);
    transform: translateX(8px);
    box-shadow: 0 4px 12px var(--card-shadow);
}

.archive-post-info {
    flex: 1;
}

.archive-post-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--heading-color);
    margin-bottom: 0.25rem;
}

.archive-post-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.archive-post-date {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.archive-post-category {
    padding: 0.2rem 0.65rem;
    background: var(--code-bg);
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
}

.archive-post-icon {
    color: var(--link-color);
    font-size: 1.25rem;
}

/* === Categories View === */
.categories-view,
.tags-view {
    padding: 0 2rem 2rem;
}

.categories-container,
.tags-container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.category-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.category-card-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
}

.category-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    flex-shrink: 0;
}

.category-info {
    flex: 1;
    min-width: 0;
}

.category-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--heading-color);
    margin: 0 0 0.25rem 0;
}

.category-description {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.4;
}

.category-count {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.category-card-body {
    padding: 1.5rem;
}

.category-recent-posts h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 1rem 0;
}

.recent-post-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem;
    margin-bottom: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.recent-post-link:hover {
    background: var(--body-bg);
}

.post-number {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--link-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

.post-title-mini {
    flex: 1;
    font-size: 0.9rem;
    color: var(--text-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.post-date-mini {
    font-size: 0.75rem;
    color: var(--text-muted);
    flex-shrink: 0;
}

.view-all-btn {
    width: 100%;
    padding: 0.75rem 1.25rem;
    margin-top: 1rem;
    background: transparent;
    border: 2px solid;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.view-all-btn:hover {
    background: var(--link-color);
    border-color: var(--link-color) !important;
    color: white !important;
    transform: translateY(-2px);
}

/* === Tags Cloud Page === */
.tags-cloud-page {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
    align-items: center;
    padding: 3rem 2rem;
    min-height: 400px;
}

.tag-cloud-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.tag-cloud-item:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    border-color: currentColor;
}

.tag-text {
    font-weight: 600;
}

.tag-count-badge {
    background: var(--body-bg);
    color: var(--text-muted);
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 700;
}

.no-data {
    text-align: center;
    color: var(--text-muted);
    padding: 3rem;
    font-size: 1.1rem;
}

/* === Responsive Design === */
@media (max-width: 1024px) {
    .content-wrapper {
        grid-template-columns: 1fr;
    }
    
    .trending-sidebar {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }
    
    .post-wrapper {
        grid-template-columns: 1fr;
    }
    
    .toc-panel {
        display: none;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .sidebar-overlay {
        display: block;
    }
    
    .mobile-header {
        display: flex;
    }
    
    .main-content {
        margin-left: 0;
        padding-top: var(--topbar-height);
    }
    
    .page-header {
        padding: 2rem 1rem 1.5rem;
    }
    
    .page-title {
        font-size: 1.5rem;
    }
    
    /* Modern header responsive */
    .page-header-modern {
        padding: 3rem 1.5rem 4rem;
        border-radius: 0 0 16px 16px;
    }
    
    .page-header-modern::after {
        height: 60px;
    }
    
    .page-title-modern {
        font-size: 2rem;
        letter-spacing: -0.3px;
    }
    
    .page-description-modern {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .header-badge {
        padding: 0.4rem 1rem;
        font-size: 0.75rem;
        margin-bottom: 1rem;
    }
    
    .search-wrapper {
        flex-direction: column;
        gap: 0.5rem;
        padding: 0.75rem;
    }
    
    .search-input-modern {
        width: 100%;
        text-align: center;
        padding: 0.75rem;
    }
    
    .search-btn-modern {
        width: 100%;
        padding: 0.75rem;
    }
    
    /* Metadata responsive */
    .metadata-grid {
        grid-template-columns: 1fr;
    }
    
    .metadata-item {
        padding: 0.85rem;
    }
    
    .metadata-header {
        font-size: 1rem;
    }
    
    /* Featured image responsive */
    .post-featured-image {
        margin: 1.5rem 0;
        border-radius: 8px;
    }
    
    .image-caption {
        padding: 0.75rem;
        font-size: 0.85rem;
    }
    
    /* Tags wrapper responsive */
    .post-tags-wrapper {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .tags-label {
        font-size: 0.9rem;
        margin-bottom: 0.75rem;
    }
    
    .filter-tabs {
        padding: 0 1rem;
    }
    
    .blog-list-view {
        padding: 0 1rem 1rem;
    }
    
    /* Categories & Tags views responsive */
    .categories-view,
    .tags-view {
        padding: 0 1rem 1rem;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .category-card-header {
        padding: 1rem;
    }
    
    .category-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .category-name {
        font-size: 1.1rem;
    }
    
    .category-description {
        font-size: 0.85rem;
    }
    
    .category-count {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }
    
    .category-card-body {
        padding: 1rem;
    }
    
    .tags-cloud-page {
        padding: 2rem 1rem;
        gap: 1rem;
    }
    
    .tag-cloud-item {
        padding: 0.4rem 1rem;
    }
    
    .blog-post-view {
        padding: 1rem;
    }
    
    .post-content {
        padding: 1.5rem;
    }
    
    .post-title {
        font-size: 1.75rem;
    }
    
    .post-navigation {
        grid-template-columns: 1fr;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
    }
}