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

:root {
    --bg-primary: #000000;
    --bg-secondary: #16181c;
    --bg-tertiary: #202327;
    --text-primary: #e7e9ea;
    --text-secondary: #71767b;
    --accent-color: #1d9bf0;
    --accent-hover: #1a8cd8;
    --border-color: #2f3336;
    --success-color: #00ba7c;
    --error-color: #f4212e;
    --wiki-color: #36c;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: -webkit-fill-available;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
    overscroll-behavior-y: contain;
    touch-action: manipulation;
}

html {
    height: -webkit-fill-available;
    scroll-behavior: smooth;
}

.app-container {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 275px;
    padding: 12px;
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    font-size: 24px;
    font-weight: bold;
    position: relative;
}

.logo-icon {
    width: 40px;
    height: 40px;
    fill: var(--wiki-color);
}

.version-text {
    font-size: 10px;
    font-weight: normal;
    color: var(--text-secondary);
    background-color: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: -4px;
    align-self: flex-start;
    margin-top: 2px;
}

.nav-menu {
    list-style: none;
    margin-top: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 20px;
    transition: background-color 0.2s;
}

.nav-item:hover {
    background-color: var(--bg-tertiary);
}

.nav-item.active {
    font-weight: bold;
}

.nav-item svg {
    width: 26px;
    height: 26px;
    fill: var(--text-primary);
}

.api-config {
    margin-top: auto;
    padding: 12px;
}

.config-button {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 12px 16px;
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: 30px;
    color: var(--text-primary);
    font-size: 15px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.config-button:hover {
    background-color: var(--bg-tertiary);
}

.config-button svg {
    width: 20px;
    height: 20px;
    fill: var(--text-secondary);
}

/* Main Content */
.main-content {
    flex: 1;
    max-width: 600px;
    border-right: 1px solid var(--border-color);
}

.feed-header {
    position: sticky;
    top: 0;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(12px);
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

.feed-header h1 {
    padding: 16px;
    font-size: 20px;
}

.feed-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
}

.tab {
    flex: 1;
    padding: 16px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 15px;
    cursor: pointer;
    position: relative;
    transition: background-color 0.2s;
}

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

.tab.active {
    color: var(--text-primary);
    font-weight: bold;
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

/* Feed */
.feed-container {
    min-height: 100vh;
    -webkit-overflow-scrolling: touch;
}

/* Post Card */
.post {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color 0.2s;
}

.post:hover {
    background-color: var(--bg-secondary);
}

.post-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.post-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--wiki-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.post-content {
    flex: 1;
    min-width: 0;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 4px;
}

.post-author {
    font-weight: bold;
    color: var(--text-primary);
}

.post-handle {
    color: var(--text-secondary);
}

.post-time {
    color: var(--text-secondary);
}

.verified-badge {
    width: 18px;
    height: 18px;
    fill: var(--wiki-color);
    margin-left: 4px;
}

.post-text {
    font-size: 15px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
    margin-bottom: 12px;
}

.post-text .hashtag {
    color: var(--accent-color);
}

.post-text .emoji {
    font-size: 18px;
}

.post-image {
    width: 100%;
    border-radius: 16px;
    margin-bottom: 12px;
    max-height: 400px;
    object-fit: cover;
}

.post-source {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background-color: var(--bg-tertiary);
    border-radius: 16px;
    font-size: 13px;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 12px;
    transition: background-color 0.2s;
}

.post-source:hover {
    background-color: var(--border-color);
}

.post-source svg {
    width: 16px;
    height: 16px;
    fill: var(--wiki-color);
}

.post-actions {
    display: flex;
    justify-content: space-between;
    max-width: 425px;
    margin-top: 12px;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.2s;
}

.action-btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.action-btn:hover {
    color: var(--accent-color);
    background-color: rgba(29, 155, 240, 0.1);
}

.action-btn.like:hover,
.action-btn.like.active {
    color: #f91880;
    background-color: rgba(249, 24, 128, 0.1);
}

.action-btn.repost:hover,
.action-btn.repost.active {
    color: var(--success-color);
    background-color: rgba(0, 186, 124, 0.1);
}

.action-btn.bookmark:hover,
.action-btn.bookmark.active {
    color: var(--accent-color);
}

/* Right Sidebar */
.right-sidebar {
    width: 350px;
    padding: 12px 24px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background-color: var(--bg-secondary);
    border-radius: 30px;
    margin-bottom: 16px;
}

.search-box svg {
    width: 20px;
    height: 20px;
    fill: var(--text-secondary);
}

.search-box input {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 15px;
    outline: none;
}

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

.trending-section {
    background-color: var(--bg-secondary);
    border-radius: 16px;
    padding: 16px;
    margin-bottom: 16px;
}

.trending-section h2 {
    font-size: 20px;
    margin-bottom: 16px;
}

.topic-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.topic-tag {
    padding: 8px 16px;
    background-color: var(--bg-tertiary);
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.topic-tag:hover {
    background-color: var(--border-color);
    transform: scale(1.05);
}

.topic-tag.active {
    background-color: var(--accent-color);
    color: white;
}

.info-section {
    background-color: var(--bg-secondary);
    border-radius: 16px;
    padding: 16px;
}

.info-section h3 {
    font-size: 16px;
    margin-bottom: 12px;
}

.info-section p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 8px;
}

.info-section .disclaimer {
    font-style: italic;
    font-size: 12px;
}

/* Loading Spinner */
.loading-spinner {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    gap: 16px;
}

.loading-spinner.active {
    display: flex;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-spinner p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(91, 112, 131, 0.4);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--bg-primary);
    border-radius: 16px;
    width: 100%;
    max-width: 400px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 20px;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.close-btn:hover {
    background-color: var(--bg-tertiary);
}

.modal-body {
    padding: 16px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 15px;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-color);
}

.form-group .help-text {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-secondary);
}

.save-btn {
    width: 100%;
    padding: 14px;
    background-color: var(--accent-color);
    border: none;
    border-radius: 30px;
    color: white;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s;
}

.save-btn:hover {
    background-color: var(--accent-hover);
}

/* Settings Divider */
.settings-divider {
    display: flex;
    align-items: center;
    margin: 24px 0 16px 0;
    color: var(--text-secondary);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.settings-divider::before,
.settings-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--border-color);
}

.settings-divider span {
    padding: 0 12px;
}

/* Slider Styles */
.slider-group label {
    display: flex;
    align-items: center;
    gap: 8px;
}

.slider-icon {
    font-size: 18px;
}

.slider-value {
    margin-left: auto;
    font-weight: normal;
    color: var(--accent-color);
    font-size: 14px;
    min-width: 40px;
    text-align: right;
}

.slider-group input[type="range"] {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-tertiary);
    border-radius: 3px;
    outline: none;
    margin: 12px 0 8px 0;
}

.slider-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent-color);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.slider-group input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 10px rgba(29, 155, 240, 0.5);
}

.slider-group input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--accent-color);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

/* Slider color variations based on value */
.slider-group.high input[type="range"]::-webkit-slider-thumb {
    background: var(--error-color);
}

.slider-group.medium input[type="range"]::-webkit-slider-thumb {
    background: #ffd400;
}

.slider-group.low input[type="range"]::-webkit-slider-thumb {
    background: var(--success-color);
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 24px;
    background-color: var(--accent-color);
    color: white;
    border-radius: 8px;
    font-size: 14px;
    z-index: 2000;
    animation: slideUp 0.3s ease;
}

.toast.error {
    background-color: var(--error-color);
}

.toast.success {
    background-color: var(--success-color);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* Skeleton Loading */
.skeleton-post {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}

.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 4px;
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.skeleton-line {
    height: 16px;
    margin-bottom: 8px;
}

.skeleton-line.short {
    width: 40%;
}

.skeleton-line.medium {
    width: 70%;
}

.skeleton-line.long {
    width: 100%;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Thread indicator */
.thread-line {
    width: 2px;
    background-color: var(--border-color);
    margin-left: 23px;
    height: 20px;
}

/* Fact check badge */
.fact-check {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background-color: rgba(54, 102, 204, 0.2);
    border-radius: 4px;
    font-size: 12px;
    color: var(--wiki-color);
    margin-top: 8px;
}

.fact-check svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

/* Responsive */
@media (max-width: 1200px) {
    .right-sidebar {
        width: 300px;
    }
}

@media (max-width: 1000px) {
    .right-sidebar {
        display: none;
    }
}

@media (max-width: 700px) {
    .sidebar {
        width: 80px;
    }
    
    .logo span,
    .nav-item span,
    .config-button span {
        display: none;
    }
    
    .nav-item {
        justify-content: center;
    }
    
    .config-button {
        justify-content: center;
    }
}

/* Mobile Styles */
@media (max-width: 600px) {
    .app-container {
        flex-direction: column;
    }
    
    /* Hide desktop sidebar on mobile */
    .sidebar {
        display: none;
    }
    
    /* Mobile Header */
    .mobile-header {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: calc(56px + env(safe-area-inset-top, 0px));
        padding-top: env(safe-area-inset-top, 0px);
        background-color: rgba(0, 0, 0, 0.9);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        z-index: 200;
        align-items: center;
        justify-content: space-between;
        padding-left: max(16px, env(safe-area-inset-left, 16px));
        padding-right: max(16px, env(safe-area-inset-right, 16px));
        border-bottom: 1px solid var(--border-color);
    }
    
    .mobile-header .logo {
        padding: 0;
        font-size: 20px;
    }
    
    .mobile-header .logo-icon {
        width: 32px;
        height: 32px;
    }
    
    .mobile-header-actions {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    
    .mobile-header-btn {
        background: none;
        border: none;
        padding: 8px;
        border-radius: 50%;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .mobile-header-btn svg {
        width: 24px;
        height: 24px;
        fill: var(--text-primary);
    }
    
    .mobile-header-btn:active {
        background-color: var(--bg-tertiary);
    }
    
    /* Mobile Bottom Navigation */
    .mobile-nav {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: calc(56px + env(safe-area-inset-bottom, 0px));
        background-color: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        z-index: 200;
        border-top: 1px solid var(--border-color);
        padding-bottom: env(safe-area-inset-bottom, 0px);
        padding-left: env(safe-area-inset-left, 0px);
        padding-right: env(safe-area-inset-right, 0px);
    }
    
    .mobile-nav-item {
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 4px;
        background: none;
        border: none;
        color: var(--text-secondary);
        cursor: pointer;
        padding: 8px 4px;
        text-decoration: none;
    }
    
    .mobile-nav-item svg {
        width: 24px;
        height: 24px;
        fill: currentColor;
    }
    
    .mobile-nav-item span {
        font-size: 10px;
    }
    
    .mobile-nav-item.active {
        color: var(--text-primary);
    }
    
    .mobile-nav-item:active {
        background-color: var(--bg-tertiary);
    }
    
    /* Adjust main content for mobile header/nav */
    .main-content {
        max-width: 100%;
        border-right: none;
        padding-top: calc(56px + env(safe-area-inset-top, 0px));
        padding-bottom: calc(56px + env(safe-area-inset-bottom, 0px));
    }
    
    /* Feed header adjustments */
    .feed-header {
        top: calc(56px + env(safe-area-inset-top, 0px));
    }
    
    .feed-header h1 {
        display: none;
    }
    
    .feed-tabs {
        border-bottom: none;
    }
    
    .tab {
        padding: 14px 8px;
        font-size: 14px;
    }
    
    .tab.active::after {
        width: 40px;
    }
    
    /* Post adjustments for mobile */
    .post {
        padding: 12px;
    }
    
    .post-avatar {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    
    .post-meta {
        flex-wrap: wrap;
        gap: 2px;
    }
    
    .post-author {
        font-size: 14px;
    }
    
    .post-handle,
    .post-time {
        font-size: 13px;
    }
    
    .post-type {
        margin-left: 0;
        margin-top: 4px;
    }
    
    .post-text {
        font-size: 15px;
    }
    
    .post-image {
        border-radius: 12px;
        max-height: 300px;
    }
    
    .post-source {
        font-size: 12px;
        padding: 6px 10px;
    }
    
    .post-actions {
        max-width: 100%;
        justify-content: space-around;
    }
    
    .action-btn {
        padding: 10px;
    }
    
    .action-btn span {
        font-size: 12px;
    }
    
    /* Modal adjustments for mobile */
    .modal {
        align-items: flex-end;
    }
    
    .modal-content {
        max-width: 100%;
        border-radius: 16px 16px 0 0;
        max-height: 85vh;
        padding-bottom: env(safe-area-inset-bottom, 16px);
    }
    
    .modal-header {
        padding: 12px 16px;
    }
    
    .modal-header h2 {
        font-size: 18px;
    }
    
    .modal-body {
        padding: 12px 16px;
    }
    
    .form-group {
        margin-bottom: 16px;
    }
    
    .form-group label {
        font-size: 14px;
    }
    
    .form-group input,
    .form-group select {
        padding: 10px 12px;
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    .settings-divider {
        margin: 16px 0 12px 0;
        font-size: 11px;
    }
    
    .slider-group label {
        font-size: 14px;
    }
    
    .slider-icon {
        font-size: 16px;
    }
    
    .slider-value {
        font-size: 13px;
    }
    
    .slider-group input[type="range"] {
        height: 8px;
    }
    
    .slider-group input[type="range"]::-webkit-slider-thumb {
        width: 22px;
        height: 22px;
    }
    
    .save-btn {
        padding: 14px;
        font-size: 15px;
    }
    
    /* Toast on mobile */
    .toast {
        bottom: calc(70px + env(safe-area-inset-bottom, 0px));
        left: 16px;
        right: 16px;
        transform: none;
        text-align: center;
    }
    
    @keyframes slideUp {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    /* Loading spinner */
    .loading-spinner {
        padding: 30px;
    }
    
    .loading-spinner p {
        font-size: 13px;
    }
    
    /* Search overlay for mobile */
    .mobile-search-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--bg-primary);
        z-index: 300;
        flex-direction: column;
        padding-top: env(safe-area-inset-top, 0px);
        padding-bottom: env(safe-area-inset-bottom, 0px);
    }
    
    .mobile-search-overlay.active {
        display: flex;
    }
    
    .mobile-search-header {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px 16px;
        padding-left: max(16px, env(safe-area-inset-left, 16px));
        padding-right: max(16px, env(safe-area-inset-right, 16px));
        border-bottom: 1px solid var(--border-color);
    }
    
    .mobile-search-header .back-btn {
        background: none;
        border: none;
        padding: 8px;
        cursor: pointer;
    }
    
    .mobile-search-header .back-btn svg {
        width: 24px;
        height: 24px;
        fill: var(--text-primary);
    }
    
    .mobile-search-header input {
        flex: 1;
        background: none;
        border: none;
        color: var(--text-primary);
        font-size: 16px;
        outline: none;
    }
    
    .mobile-search-body {
        flex: 1;
        overflow-y: auto;
        padding: 16px;
        padding-left: max(16px, env(safe-area-inset-left, 16px));
        padding-right: max(16px, env(safe-area-inset-right, 16px));
        -webkit-overflow-scrolling: touch;
    }
    
    .mobile-search-body .topic-tags {
        gap: 10px;
    }
    
    .mobile-search-body .topic-tag {
        padding: 12px 20px;
        font-size: 15px;
    }
}

/* Extra small mobile devices */
@media (max-width: 360px) {
    .tab {
        padding: 12px 4px;
        font-size: 12px;
    }
    
    .post-author {
        max-width: 100px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .post-handle {
        max-width: 80px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .action-btn span {
        display: none;
    }
}

/* Hide mobile elements on desktop */
@media (min-width: 601px) {
    .mobile-header,
    .mobile-nav,
    .mobile-search-overlay {
        display: none !important;
    }
}

/* Touch-friendly adjustments */
@media (hover: none) and (pointer: coarse) {
    .post:hover {
        background-color: transparent;
    }
    
    .post:active {
        background-color: var(--bg-secondary);
    }
    
    .action-btn:hover {
        background-color: transparent;
    }
    
    .action-btn:active {
        background-color: rgba(29, 155, 240, 0.1);
    }
    
    .topic-tag:hover {
        transform: none;
    }
    
    .topic-tag:active {
        transform: scale(0.95);
    }
    
    .nav-item:hover {
        background-color: transparent;
    }
    
    .nav-item:active {
        background-color: var(--bg-tertiary);
    }
}

/* Infinite scroll trigger */
.scroll-trigger {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Post type badges */
.post-type {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: bold;
    text-transform: uppercase;
    margin-left: 8px;
}

.post-type.fact {
    background-color: rgba(29, 155, 240, 0.2);
    color: var(--accent-color);
}

.post-type.meme {
    background-color: rgba(249, 24, 128, 0.2);
    color: #f91880;
}

.post-type.thread {
    background-color: rgba(0, 186, 124, 0.2);
    color: var(--success-color);
}

.post-type.til {
    background-color: rgba(255, 212, 0, 0.2);
    color: #ffd400;
}

/* Mobile landscape orientation */
@media (max-width: 900px) and (orientation: landscape) {
    .mobile-header {
        height: calc(44px + env(safe-area-inset-top, 0px));
    }
    
    .mobile-nav {
        height: calc(44px + env(safe-area-inset-bottom, 0px));
    }
    
    .mobile-nav-item span {
        display: none;
    }
    
    .mobile-nav-item svg {
        width: 22px;
        height: 22px;
    }
    
    .main-content {
        padding-top: calc(44px + env(safe-area-inset-top, 0px));
        padding-bottom: calc(44px + env(safe-area-inset-bottom, 0px));
    }
    
    .feed-header {
        top: calc(44px + env(safe-area-inset-top, 0px));
    }
    
    .modal-content {
        max-height: 95vh;
        border-radius: 12px;
    }
    
    .toast {
        bottom: calc(50px + env(safe-area-inset-bottom, 0px));
    }
}