/* ===== CSS Variables & Theme ===== */
:root {
    /* Colors - Light Theme */
    --color-primary: #6366f1;
    --color-primary-hover: #4f46e5;
    --color-primary-light: rgba(99, 102, 241, 0.1);
    --color-secondary: #8b5cf6;
    --color-accent: #06b6d4;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;

    --color-bg: #f8fafc;
    --color-bg-elevated: #ffffff;
    --color-bg-hover: #f1f5f9;
    --color-border: #e2e8f0;
    --color-border-subtle: #f1f5f9;

    --color-text: #0f172a;
    --color-text-secondary: #475569;
    --color-text-muted: #94a3b8;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 100%);
    --gradient-card: linear-gradient(135deg, rgba(99, 102, 241, 0.02) 0%, rgba(139, 92, 246, 0.02) 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'Fira Code', 'Consolas', monospace;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Dark Theme */
[data-theme="dark"] {
    --color-bg: #0f172a;
    --color-bg-elevated: #1e293b;
    --color-bg-hover: #334155;
    --color-border: #334155;
    --color-border-subtle: #1e293b;

    --color-text: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #64748b;

    --gradient-card: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
}

/* ===== Base Styles ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

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

/* Screen reader only - for SEO H1 headings */
.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;
}

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

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

img {
    max-width: 100%;
    height: auto;
}

/* ===== App Container ===== */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ===== Navbar ===== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] .navbar {
    background-color: rgba(30, 41, 59, 0.9);
}

.navbar-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.navbar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.navbar-brand:hover {
    color: var(--color-text);
}

.brand-icon {
    font-size: 1.75rem;
}

.brand-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.brand-logo-letter {
    height: 2rem;
    width: auto;
    object-fit: contain;
    vertical-align: middle;
    margin-right: -1px;
}

.footer-logo {
    height: 32px;
    width: auto;
    object-fit: contain;
}

.brand-accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Search */
.search-container {
    position: relative;
}

.search-form {
    position: relative;
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.search-input {
    width: 280px;
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) 2.5rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--color-text);
    transition: all var(--transition-normal);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
    width: 320px;
}

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

/* Nav Links */
.navbar-center {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-secondary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

/* Navbar Right */
.navbar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    color: white;
}

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

.btn-outline:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-text-muted);
    color: var(--color-text);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
}

.btn-ghost:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

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

.btn-danger:hover {
    background: #dc2626;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.8125rem;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
}

.btn-icon {
    padding: var(--spacing-sm);
    width: 40px;
    height: 40px;
}

.btn-create {
    background: var(--gradient-primary);
}

/* ===== Dropdown ===== */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid var(--color-border);
    transition: border-color var(--transition-fast);
}

.user-avatar:hover {
    border-color: var(--color-primary);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + var(--spacing-sm));
    right: 0;
    min-width: 200px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-sm);
    display: none;
    z-index: 1000;
}

.dropdown-menu.show {
    display: block;
    animation: slideDown 0.2s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
    width: 100%;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
    text-align: left;
}

.dropdown-item:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.dropdown-item i {
    width: 16px;
    color: var(--color-text-muted);
}

.dropdown-divider {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--spacing-sm) 0;
}

.text-danger {
    color: var(--color-danger) !important;
}

.text-danger i {
    color: var(--color-danger) !important;
}

/* Theme Toggle */
.theme-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
}

/* ===== Cards ===== */
.card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
}

/* Post Card */
.post-card {
    display: flex;
    flex-direction: column;
}

.post-card-cover {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

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

.post-card-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.post-card-author img {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
}

.post-card-author-info {
    display: flex;
    flex-direction: column;
}

.post-card-author-name {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--color-text);
}

.post-card-date {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.post-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

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

.post-card-excerpt {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    flex: 1;
}

.post-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.post-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border-subtle);
}

.post-card-stats {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.post-stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-muted);
    font-size: 0.8125rem;
}

.post-stat i {
    font-size: 0.875rem;
}

.post-reading-time {
    color: var(--color-text-muted);
    font-size: 0.8125rem;
}

/* Tags */
.tag {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

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

/* ===== Grid Layouts ===== */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--spacing-xl);
}

.posts-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* ===== Page Header ===== */
.page-header {
    margin-bottom: var(--spacing-2xl);
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
}

/* ===== Feed Layout ===== */
.feed-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-2xl);
}

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

.feed-sidebar {
    position: sticky;
    top: 88px;
    height: fit-content;
}

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

.sidebar-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

/* ===== Feed Tabs ===== */
.feed-tabs {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xl);
    background: var(--color-bg-elevated);
    padding: var(--spacing-xs);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.feed-tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 500;
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.feed-tab:hover {
    color: var(--color-text);
    background: var(--color-bg-hover);
}

.feed-tab.active {
    background: var(--gradient-primary);
    color: white;
}

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

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

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.form-help {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

.form-error {
    font-size: 0.8125rem;
    color: var(--color-danger);
    margin-top: var(--spacing-xs);
}

/* ===== Footer ===== */
.footer {
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-2xl) var(--spacing-lg);
    margin-top: auto;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
    text-align: center;
}

.footer-brand {
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

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

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

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

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

/* Newsletter */
.footer-newsletter {
    width: 100%;
    max-width: 400px;
    margin: var(--spacing-md) 0;
}

.newsletter-title {
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
}

.newsletter-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 0.875rem;
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

.newsletter-hint {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

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

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

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

.mt-0 {
    margin-top: 0;
}

.mt-1 {
    margin-top: var(--spacing-sm);
}

.mt-2 {
    margin-top: var(--spacing-md);
}

.mt-3 {
    margin-top: var(--spacing-lg);
}

.mt-4 {
    margin-top: var(--spacing-xl);
}

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}

.mb-3 {
    margin-bottom: var(--spacing-lg);
}

.mb-4 {
    margin-bottom: var(--spacing-xl);
}

.p-0 {
    padding: 0;
}

.p-1 {
    padding: var(--spacing-sm);
}

.p-2 {
    padding: var(--spacing-md);
}

.p-3 {
    padding: var(--spacing-lg);
}

.p-4 {
    padding: var(--spacing-xl);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .feed-layout {
        grid-template-columns: 1fr;
    }

    .feed-sidebar {
        display: none;
    }

    .navbar-center {
        display: none;
    }
}

@media (max-width: 768px) {
    .navbar-container {
        padding: 0 var(--spacing-md);
    }

    .search-container {
        display: none;
    }

    .btn-create span {
        display: none;
    }

    .posts-grid {
        grid-template-columns: 1fr;
    }

    .page-title {
        font-size: 1.5rem;
    }
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease;
}

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

/* ===== Markdown Content ===== */
.markdown-content {
    font-size: 1.0625rem;
    line-height: 1.8;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    color: var(--color-text);
}

.markdown-content h1 {
    font-size: 2rem;
}

.markdown-content h2 {
    font-size: 1.5rem;
}

.markdown-content h3 {
    font-size: 1.25rem;
}

.markdown-content h4 {
    font-size: 1.125rem;
}

.markdown-content p {
    margin-bottom: var(--spacing-lg);
}

.markdown-content code {
    font-family: var(--font-mono);
    background: var(--color-bg);
    padding: 0.2em 0.4em;
    border-radius: var(--radius-sm);
    font-size: 0.875em;
}

.markdown-content pre {
    background: #1e293b;
    color: #e2e8f0;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
}

.markdown-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

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

.markdown-content ul,
.markdown-content ol {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
}

.markdown-content li {
    margin-bottom: var(--spacing-sm);
}

.markdown-content img {
    border-radius: var(--radius-lg);
    margin: var(--spacing-lg) 0;
}

.markdown-content a {
    color: var(--color-primary);
    text-decoration: underline;
}

.markdown-content hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--spacing-2xl) 0;
}

/* ===== Alert Messages ===== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--color-success);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--color-danger);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--color-warning);
}

.alert-info {
    background: var(--color-primary-light);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: var(--color-primary);
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-2xl);
}

.pagination-link {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.pagination-link:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

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

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

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-text-muted);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
}

.empty-state-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.empty-state-description {
    margin-bottom: var(--spacing-lg);
}

/* ===== Post Detail Page Styles ===== */

/* Post Meta Row - Author Info Layout */
.post-meta-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: var(--spacing-lg);
}

.post-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: inherit;
}

.post-author:hover .author-name {
    color: var(--color-primary);
}

/* Author Avatar in Post Header - Production Size (48px) */
.post-header .author-avatar,
.post-header .post-author img,
.post-meta-row img.author-avatar {
    width: 48px !important;
    height: 48px !important;
    max-width: 48px !important;
    max-height: 48px !important;
    min-width: 48px;
    min-height: 48px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

/* Author Info Layout */
.author-info {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.author-name {
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text);
    transition: color 0.2s ease;
}

.post-date {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* Comment Avatars - Smaller Size */
.comment-avatar,
img.comment-avatar,
.comment-header img,
.comment-author img,
.comments-section .card img:first-child {
    width: 36px !important;
    height: 36px !important;
    max-width: 36px !important;
    max-height: 36px !important;
    min-width: 36px;
    min-height: 36px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

/* Reply avatars even smaller */
.comment-item.reply img.comment-avatar,
.comment-item.reply .comment-author img,
.comment-replies img {
    width: 28px !important;
    height: 28px !important;
    max-width: 28px !important;
    max-height: 28px !important;
    min-width: 28px;
    min-height: 28px;
}

/* Comment Header Layout */
.comment-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.comment-author {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* Action Buttons - Pill Style */
.post-footer .action-btn,
.post-actions-left .action-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 9999px;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.post-footer .action-btn:hover,
.post-actions-left .action-btn:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.post-footer .action-btn.active,
.post-actions-left .action-btn.active {
    color: #ef4444;
    border-color: #fecaca;
    background: #fef2f2;
}

.action-btn i {
    font-size: 1rem;
}

/* Code Block Wrapper */
.code-block-wrapper {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.code-block-wrapper pre {
    margin: 0 !important;
    border-radius: var(--radius-lg);
    padding-top: 2.5rem !important;
}

/* Code Language Label */
.code-lang-label {
    position: absolute;
    top: 0;
    left: 0;
    background: rgba(255, 255, 255, 0.15);
    color: #a0aec0;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.35rem 0.9rem;
    border-radius: var(--radius-lg) 0 var(--radius-md) 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 10;
}

/* Copy Code Button */
.copy-code-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.1);
    color: #a0aec0;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    z-index: 10;
    font-size: 0.85rem;
}

.copy-code-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.copy-code-btn.copied {
    color: #4ade80;
}