/* ============================================
   SPEC - Modern Video Sharing Platform
   Main Stylesheet
   ============================================ */

/* CSS Variables */
:root {
    --primary-color: #3a9d6e;
    --primary-hover: #2d8059;
    --bg-dark: #0b1a10;
    --bg-secondary: #122218;
    --bg-tertiary: #1a2e22;
    --bg-card: #1f3528;
    --text-primary: #e8f5ec;
    --text-secondary: #8fa89a;
    --text-muted: #5a7a66;
    --border-color: #243d2e;
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-hover: 0 8px 30px rgba(58, 157, 110, 0.15);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition-smooth);
}

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

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

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* ============================================
   Layout Structure
   ============================================ */

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

.main-layout {
    display: flex;
    margin-top: 64px;
}

.content-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

/* ============================================
   Navbar
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    z-index: 1000;
}

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

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

.navbar-logo svg {
    width: 32px;
    height: 32px;
}

.navbar-center {
    flex: 1;
    max-width: 600px;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.search-bar {
    flex: 1;
    display: flex;
    align-items: center;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: var(--transition-smooth);
}

.search-bar:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(58, 157, 110, 0.1);
}

.search-bar input {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
}

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

.search-bar button {
    color: var(--text-secondary);
    padding: var(--spacing-xs);
}

.search-bar button:hover {
    color: var(--primary-color);
}

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

.navbar-button {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    background-color: transparent;
    position: relative;
}

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

.navbar-button .notification-badge {
    /* Now handled by .notification-badge.active */
}

.navbar-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.navbar-avatar:hover {
    transform: scale(1.05);
    box-shadow: 0 0 0 2px var(--primary-color);
}

.navbar-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================
   Left Sidebar
   ============================================ */

.sidebar-left {
    position: fixed;
    left: 0;
    top: 64px;
    bottom: 0;
    width: 240px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    padding: var(--spacing-lg) var(--spacing-md);
    z-index: 900;
}

.sidebar-section {
    margin-bottom: var(--spacing-xl);
}

.sidebar-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-xs);
    transition: var(--transition-smooth);
}

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

.sidebar-item.active {
    background-color: rgba(58, 157, 110, 0.1);
    color: var(--primary-color);
}

.sidebar-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar-item-text {
    flex: 1;
}

.sidebar-item-badge {
    background-color: var(--primary-color);
    color: var(--bg-dark);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

/* ============================================
   Right Sidebar (Friends)
   ============================================ */

.sidebar-right {
    position: fixed;
    right: 0;
    top: 64px;
    bottom: 0;
    width: 280px;
    background-color: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    overflow-y: auto;
    padding: var(--spacing-lg);
    z-index: 900;
}

.sidebar-right-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sidebar-right-title svg {
    width: 20px;
    height: 20px;
    color: var(--primary-color);
}

.friend-card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    transition: var(--transition-smooth);
    cursor: pointer;
}

.friend-card:hover {
    background-color: var(--bg-tertiary);
}

.friend-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    overflow: hidden;
    flex-shrink: 0;
    position: relative;
}

.friend-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.friend-status {
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    border: 2px solid var(--bg-secondary);
}

.friend-status.watching {
    background-color: var(--primary-color);
}

.friend-status.paused {
    background-color: #FFA500;
}

.friend-status.live {
    background-color: #FF4444;
}

.friend-status.offline {
    background-color: var(--text-muted);
}

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

.friend-name {
    font-weight: 500;
    font-size: 0.95rem;
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.friend-activity {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.friend-activity.watching {
    color: var(--primary-color);
}

.view-all-friends {
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    margin-top: var(--spacing-md);
    transition: var(--transition-smooth);
}

.view-all-friends:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Friends Page - Tabs */
.friends-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-sm);
}

.friends-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    transition: var(--transition-smooth);
    position: relative;
}

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

.friends-tab.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

.friends-tab-count {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 12px;
    min-width: 20px;
    text-align: center;
}

.friends-tab.active .friends-tab-count {
    background-color: var(--primary-color);
    color: var(--bg-dark);
}

/* Friend Card Wrapper with Remove Button */
.friend-card-wrapper {
    position: relative;
}

.friend-remove-btn {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    opacity: 0;
    transition: var(--transition-smooth);
}

.friend-card-wrapper:hover .friend-remove-btn {
    opacity: 1;
}

.friend-remove-btn:hover {
    background-color: #e74c3c;
    border-color: #e74c3c;
    color: white;
}

/* Pending Request Cards */
.pending-request-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    transition: var(--transition-smooth);
}

.pending-request-card:hover {
    border-color: var(--primary-color);
}

.pending-request-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.pending-request-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.pending-request-info h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.pending-request-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 2px 0 0;
}

.pending-request-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.btn-accept {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--primary-color);
    color: var(--bg-dark);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-accept:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

.btn-decline {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-decline:hover {
    border-color: #e74c3c;
    color: #e74c3c;
}

/* Find Friends */
.find-friends-search {
    margin-bottom: var(--spacing-lg);
}

.find-friends-search input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: var(--transition-smooth);
}

.find-friends-search input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb, 99, 102, 241), 0.15);
}

.find-user-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    transition: var(--transition-smooth);
}

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

.find-user-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.find-user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.find-user-info h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.find-user-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 2px 0 0;
}

.find-user-action {
    flex-shrink: 0;
}

.btn-add-friend {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--primary-color);
    color: var(--bg-dark);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-add-friend:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

.friend-badge {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 500;
}

.friend-badge.pending {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

/* ============================================
   Main Content Area
   ============================================ */

.main-content {
    padding: var(--spacing-lg) var(--spacing-2xl);
    margin-left: 240px;
    margin-right: 280px;
}

/* ============================================
   Category Chips
   ============================================ */

.category-bar {
    display: flex;
    gap: var(--spacing-sm);
    overflow-x: auto;
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    scrollbar-width: none;
}

.category-bar::-webkit-scrollbar {
    display: none;
}

.category-chip {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    transition: var(--transition-smooth);
}

.category-chip:hover {
    background-color: var(--bg-card);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.category-chip.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--bg-dark);
}

.category-scroll-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 5;
    transition: opacity 0.2s, background-color 0.2s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.category-scroll-arrow:hover {
    background-color: var(--primary-color);
    color: var(--bg-dark);
}

.category-scroll-left {
    left: 0;
}

.category-scroll-right {
    right: 0;
}

/* ============================================
   Video Sections
   ============================================ */

.video-section {
    margin-bottom: var(--spacing-2xl);
}

.video-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.video-section-title {
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.video-section-title svg {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
}

.view-more-button {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: var(--transition-fast);
}

.view-more-button:hover {
    color: var(--primary-color);
}

.view-more-button svg {
    width: 16px;
    height: 16px;
}

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

/* ============================================
   Video Card
   ============================================ */

.video-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.video-card:hover {
    transform: translateY(-4px);
}

.video-card:hover .video-thumbnail {
    box-shadow: var(--shadow-hover);
}

.video-thumbnail {
    position: relative;
    aspect-ratio: 16/9;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: var(--bg-tertiary);
    transition: var(--transition-smooth);
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-duration {
    position: absolute;
    bottom: var(--spacing-sm);
    right: var(--spacing-sm);
    background-color: rgba(0, 0, 0, 0.8);
    color: var(--text-primary);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

.video-info {
    display: flex;
    gap: var(--spacing-md);
}

.video-channel-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    overflow: hidden;
    flex-shrink: 0;
}

.video-channel-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-details {
    flex: 1;
    min-width: 0;
}

.video-title {
    font-weight: 600;
    font-size: 1rem;
    line-height: 1.4;
    margin-bottom: var(--spacing-xs);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-channel-name {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.video-channel-name:hover {
    color: var(--primary-color);
}

.video-channel-name svg {
    width: 14px;
    height: 14px;
}

.video-meta {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ============================================
   Video Page
   ============================================ */

.video-page {
    display: flex;
    gap: var(--spacing-xl);
    padding: var(--spacing-lg) var(--spacing-2xl);
    margin-left: 240px;
    margin-right: 280px;
}

.video-page-main {
    flex: 1;
    max-width: 900px;
}

.video-page-sidebar {
    width: 350px;
}

.video-player {
    position: relative;
    aspect-ratio: 16/9;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.video-player-placeholder {
    text-align: center;
    color: var(--text-muted);
}

.video-player-placeholder svg {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.video-player-element {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.video-page-header {
    margin-bottom: var(--spacing-lg);
}

.video-page-title {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

.video-page-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.video-page-channel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-lg);
}

.video-page-channel-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.video-page-channel-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    overflow: hidden;
}

.video-page-channel-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-page-channel-details {
    display: flex;
    flex-direction: column;
}

.video-page-channel-name {
    font-weight: 600;
    font-size: 1rem;
}

.video-page-channel-subscribers {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.subscribe-button {
    padding: var(--spacing-sm) var(--spacing-xl);
    background-color: var(--primary-color);
    color: var(--bg-dark);
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition-smooth);
}

.subscribe-button:hover {
    background-color: var(--primary-hover);
    transform: scale(1.05);
}

.video-page-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.action-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.action-button:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.action-button svg {
    width: 18px;
    height: 18px;
}

/* Repost button active state */
.action-button.repost-button.active {
    background-color: rgba(58, 157, 110, 0.15);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.action-button.repost-button.active svg {
    fill: var(--primary-color);
}

/* Repost caption input inline */
.repost-form {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.repost-form.hidden {
    display: none;
}

.repost-form input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
}

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

.repost-form button {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--primary-color);
    color: var(--bg-dark);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.85rem;
}

.repost-form button.cancel {
    background-color: transparent;
    color: var(--text-secondary);
}

/* Repost indicator on video cards */
.repost-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-color);
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.repost-indicator svg {
    width: 14px;
    height: 14px;
}

.comments-section {
    margin-top: var(--spacing-xl);
}

.comments-header {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.comment-input {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.comment-input-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    overflow: hidden;
    flex-shrink: 0;
}

.comment-input-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.comment-input-field {
    flex: 1;
}

.comment-input-field textarea {
    width: 100%;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    resize: vertical;
    min-height: 80px;
    transition: var(--transition-smooth);
}

.comment-input-field textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.comment-input-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: var(--spacing-sm);
}

.comment-submit-button {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--primary-color);
    color: var(--bg-dark);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.comment-submit-button:hover {
    background-color: var(--primary-hover);
}

.comment {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--border-color);
}

.comment-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    overflow: hidden;
    flex-shrink: 0;
}

.comment-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.comment-content {
    flex: 1;
}

.comment-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.comment-author {
    font-weight: 600;
    font-size: 0.95rem;
}

.comment-time {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.comment-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.comment-actions {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-sm);
}

.comment-action {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-muted);
    font-size: 0.85rem;
    transition: var(--transition-fast);
}

.comment-action:hover {
    color: var(--primary-color);
}

.comment-action svg {
    width: 16px;
    height: 16px;
}

/* Comment thread (parent + replies) */
.comment-thread {
    margin-bottom: var(--spacing-md);
}

.comment-reply {
    padding: var(--spacing-sm) 0;
    margin-left: var(--spacing-lg);
    border-bottom: none;
}

.comment-reply .comment-avatar {
    width: 32px;
    height: 32px;
}

.comment-replies {
    margin-left: 56px;
    margin-top: var(--spacing-sm);
}

/* Comment action buttons */
.comment-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    border: none;
    background: none;
    color: var(--text-muted);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.comment-action-btn:hover {
    color: var(--primary-color);
    background-color: var(--bg-tertiary);
}

.comment-action-btn.liked {
    color: var(--primary-color);
}

.comment-action-btn svg {
    width: 14px;
    height: 14px;
}

/* Reply form */
.reply-form {
    display: flex;
    gap: var(--spacing-sm);
    margin-left: 56px;
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
}

.reply-form.hidden {
    display: none;
}

.reply-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    resize: none;
    min-height: 36px;
    font-family: inherit;
}

.reply-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.reply-submit {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.85rem;
}

/* Notification badge */
.notification-btn {
    position: relative;
}

.notification-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    border-radius: 8px;
    background-color: var(--primary-color);
    color: var(--bg-dark);
    font-size: 0.7rem;
    font-weight: 700;
    display: none;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.notification-badge.active {
    display: flex;
}

/* ============================================
   Profile Page
   ============================================ */

.profile-page {
    padding: var(--spacing-xl) var(--spacing-2xl);
    margin-left: 240px;
    margin-right: 280px;
}

.profile-banner {
    aspect-ratio: 16/3;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
}

.profile-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.profile-avatar {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 4px solid var(--primary-color);
}

.profile-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-info {
    flex: 1;
}

.profile-name {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.profile-username {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.profile-bio {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.profile-stats {
    display: flex;
    gap: var(--spacing-xl);
}

.profile-stat {
    text-align: center;
}

.profile-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.profile-stat-label {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.profile-header-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.profile-tabs {
    display: flex;
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-xl);
}

.profile-tab {
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
    transition: var(--transition-fast);
}

.profile-tab:hover {
    color: var(--primary-color);
}

.profile-tab.active {
    color: var(--primary-color);
}

.profile-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
}

/* ============================================
   Channel Page
   ============================================ */

.channel-page {
    padding: var(--spacing-xl) var(--spacing-2xl);
    margin-left: 240px;
    margin-right: 280px;
}

.channel-banner {
    aspect-ratio: 16/3;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
}

.channel-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.channel-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.channel-avatar {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 3px solid var(--primary-color);
}

.channel-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.channel-info {
    flex: 1;
}

.channel-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.channel-subscribers {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.channel-header-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.channel-tabs {
    display: flex;
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-xl);
}

.channel-tab {
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
    transition: var(--transition-fast);
}

.channel-tab:hover {
    color: var(--primary-color);
}

.channel-tab.active {
    color: var(--primary-color);
}

.channel-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
}

/* ============================================
   Responsive Design
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
    .sidebar-right {
        display: none;
    }

    .main-content {
        margin-right: 0;
    }

    .video-page {
        margin-right: 0;
    }

    .video-page-sidebar {
        display: none;
    }

    .profile-page {
        margin-right: 0;
    }

    .channel-page {
        margin-right: 0;
    }

    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

/* Mobile */
@media (max-width: 768px) {
    /* Sidebar: overlay mode */
    .sidebar-left {
        top: calc(56px + env(safe-area-inset-top, 0px));
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 1100;
        width: 260px;
    }

    .sidebar-left.open {
        transform: translateX(0);
    }

    /* Sidebar backdrop */
    .sidebar-backdrop {
        position: fixed;
        top: calc(56px + env(safe-area-inset-top, 0px));
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.6);
        z-index: 1099;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s ease;
    }

    .sidebar-backdrop.active {
        opacity: 1;
        pointer-events: auto;
    }

    /* Navbar: compact on mobile */
    .navbar {
        padding: 0;
        padding-top: env(safe-area-inset-top, 0px);
        height: calc(56px + env(safe-area-inset-top, 0px));
    }

    .navbar-center {
        display: none;
    }

    .navbar-left {
        gap: var(--spacing-xs);
        padding-left: var(--spacing-sm);
    }

    .navbar-logo {
        font-size: 1.1rem;
    }

    .navbar-logo svg {
        width: 24px;
        height: 24px;
    }

    .navbar-right {
        flex: 1;
        justify-content: space-between;
        gap: var(--spacing-xs);
        padding: 0 var(--spacing-sm);
    }

    .navbar-button {
        width: 36px;
        height: 36px;
    }

    .navbar-button svg {
        width: 18px;
        height: 18px;
    }

    .upload-button span {
        display: none !important;
    }

    .navbar-button.upload-button {
        width: 40px;
        padding: 0;
    }

    .navbar-avatar {
        width: 32px;
        height: 32px;
    }

    /* Hamburger */
    .hamburger-menu {
        display: flex !important;
        width: 36px;
        height: 36px;
        margin-right: var(--spacing-sm);
    }

    .hamburger-menu svg {
        width: 22px;
        height: 22px;
    }

    /* Content areas */
    .main-layout {
        margin-top: calc(56px + env(safe-area-inset-top, 0px));
    }

    .main-content {
        margin-left: 0;
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .video-page {
        margin-left: 0;
        padding: var(--spacing-sm);
        flex-direction: column;
    }

    .video-page-main {
        max-width: 100%;
    }

    .profile-page {
        margin-left: 0;
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .channel-page {
        margin-left: 0;
        padding: var(--spacing-md) var(--spacing-sm);
    }

    /* Video grid: 2 columns on phones */
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .video-card {
        gap: var(--spacing-sm);
    }

    .video-card .video-info {
        gap: var(--spacing-sm);
    }

    .video-card .video-channel-avatar {
        width: 28px;
        height: 28px;
    }

    .video-card .video-title {
        font-size: 0.85rem;
        line-height: 1.3;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .video-card .video-channel-name,
    .video-card .video-meta {
        font-size: 0.75rem;
    }

    .video-thumbnail .video-duration {
        font-size: 0.7rem;
        padding: 1px 4px;
    }

    /* Category bar */
    .category-bar {
        padding-bottom: var(--spacing-sm);
    }

    .category-pill {
        font-size: 0.8rem;
        padding: var(--spacing-xs) var(--spacing-md);
    }

    /* Profile page */
    .profile-banner {
        aspect-ratio: 16/4;
    }

    .profile-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }

    .profile-avatar {
        width: 80px;
        height: 80px;
    }

    .profile-name {
        font-size: 1.3rem;
    }

    .profile-header-actions {
        justify-content: center;
    }

    .profile-stats {
        justify-content: center;
        gap: var(--spacing-lg);
        flex-wrap: wrap;
    }

    .profile-stat-value {
        font-size: 1.2rem;
    }

    .profile-stat-label {
        font-size: 0.75rem;
    }

    .profile-tabs {
        overflow-x: auto;
    }

    .profile-tab {
        font-size: 0.85rem;
        padding: var(--spacing-sm) var(--spacing-md);
        white-space: nowrap;
    }

    /* Channel page */
    .channel-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }

    .channel-avatar {
        width: 72px;
        height: 72px;
    }

    .channel-name {
        font-size: 1.2rem;
    }

    .channel-banner {
        aspect-ratio: 16/4;
    }

    .channel-tabs {
        overflow-x: auto;
    }

    .channel-tab {
        font-size: 0.85rem;
        padding: var(--spacing-sm) var(--spacing-md);
        white-space: nowrap;
    }

    /* Video page specifics */
    .video-player {
        border-radius: var(--radius-md);
    }

    .video-title {
        font-size: 1.1rem;
    }

    .video-actions {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }

    .video-action-button {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.85rem;
    }

    .comments-section {
        margin-top: var(--spacing-md);
    }

    .comment {
        gap: var(--spacing-sm);
    }

    .comment-avatar {
        width: 32px;
        height: 32px;
    }

    .comment-author {
        font-size: 0.85rem;
    }

    .comment-text {
        font-size: 0.85rem;
    }

    .comment-replies {
        margin-left: 40px;
    }

    .reply-form {
        margin-left: 40px;
    }

    /* Page header */
    .page-header h1 {
        font-size: 1.4rem;
    }

    /* Friends page */
    .friend-card {
        padding: var(--spacing-sm);
    }

    .friend-avatar {
        width: 40px;
        height: 40px;
    }

    /* Settings page */
    .settings-section {
        padding: var(--spacing-md);
    }
}

.hamburger-menu {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    margin-right: var(--spacing-md);
}

.hamburger-menu:hover {
    background-color: var(--bg-tertiary);
    color: var(--primary-color);
}

.hamburger-menu svg {
    width: 24px;
    height: 24px;
}

/* ============================================
   Page Headers
   ============================================ */

.page-header {
    margin-bottom: var(--spacing-xl);
}

.page-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    color: var(--text-muted);
    font-size: 1rem;
}

/* ============================================
   Friends Grid
   ============================================ */

.friends-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.friend-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-smooth);
    cursor: pointer;
}

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

.friend-card .friend-avatar {
    width: 80px;
    height: 80px;
}

.friend-card .friend-name {
    font-weight: 600;
    font-size: 1.1rem;
    text-align: center;
}

.friend-card .friend-activity {
    text-align: center;
    font-size: 0.9rem;
}

/* ============================================
   Playlists Grid
   ============================================ */

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

.playlist-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-smooth);
    cursor: pointer;
}

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

.playlist-thumbnail {
    aspect-ratio: 16/9;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}

.playlist-name {
    font-weight: 600;
    font-size: 1.1rem;
}

.playlist-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ============================================
   Upload Button in Navbar
   ============================================ */

.navbar-button.upload-button {
    width: auto;
    padding: var(--spacing-sm) var(--spacing-lg);
    gap: var(--spacing-sm);
    background-color: var(--primary-color);
    color: var(--bg-dark);
    font-weight: 600;
}

.navbar-button.upload-button:hover {
    background-color: var(--primary-hover);
    color: var(--bg-dark);
}

.navbar-button.upload-button span {
    display: block;
}

/* ============================================
   Notifications Page
   ============================================ */

.notifications-page {
    max-width: 800px;
    margin: 0 auto;
}

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

.notifications-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.notifications-clear {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 0.9rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.notifications-clear:hover {
    background: rgba(58, 157, 110, 0.1);
}

.notification-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.notification-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
}

.notification-item.unread {
    border-left: 3px solid var(--primary-color);
}

.notification-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(58, 157, 110, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--primary-color);
}

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

.notification-text {
    color: var(--text-primary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: var(--spacing-xs);
}

.notification-time {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.notifications-empty {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.notifications-empty svg {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.notifications-empty h3 {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.notifications-empty p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ============================================
   Playlist Detail Page
   ============================================ */

.playlist-page {
    max-width: 1000px;
    margin: 0 auto;
}

.playlist-hero {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    display: flex;
    gap: var(--spacing-xl);
    align-items: flex-start;
}

.playlist-hero-icon {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-lg);
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--primary-color);
}

.playlist-hero-info {
    flex: 1;
}

.playlist-hero-info h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.playlist-hero-meta {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}

.playlist-hero-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.playlist-play-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.playlist-play-btn:hover {
    background: var(--primary-hover);
}

.playlist-shuffle-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.playlist-shuffle-btn:hover {
    background: var(--bg-card);
    border-color: var(--primary-color);
}

.playlist-videos-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.playlist-videos-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.playlist-video-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.playlist-video-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
}

.playlist-video-index {
    color: var(--text-muted);
    font-size: 0.9rem;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.playlist-video-thumb {
    width: 120px;
    height: 68px;
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
}

.playlist-video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.playlist-video-info h3 {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.playlist-video-info p {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.playlist-empty {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

/* ============================================
   Toast Notification
   ============================================ */

.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-card);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--primary-color);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    z-index: 10000;
    font-size: 0.9rem;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ============================================
   Modal Overlay (for Save to Playlist)
   ============================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.modal-overlay.show {
    opacity: 1;
    pointer-events: all;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    width: 90%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

/* Donate dialog */
.donate-dialog {
    max-width: 420px;
}

.donate-dialog .modal-header h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-color);
}

.donate-dialog-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.donate-dialog-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.donate-dialog-info {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    color: var(--text-primary);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    word-break: break-word;
    white-space: pre-wrap;
}

.donate-dialog-copy {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--primary-color);
    color: var(--bg-dark);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition-fast);
}

.donate-dialog-copy:hover {
    background-color: var(--primary-hover);
}

.donate-toast {
    position: fixed;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
    z-index: 10000;
}

.donate-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.modal-playlist-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.modal-playlist-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.modal-playlist-item svg {
    flex-shrink: 0;
}

.modal-empty {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ============================================
   Utility Classes
   ============================================ */

.hidden {
    display: none !important;
}

.text-primary {
    color: var(--primary-color);
}

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

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

.bg-primary {
    background-color: var(--primary-color);
}

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

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

/* ============================================
   Repost Attribution Overlay
   ============================================ */

.repost-overlay {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 20px;
    padding: 6px 14px 6px 6px;
    z-index: 10;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.repost-overlay-item {
    display: flex;
    align-items: center;
    gap: 8px;
    transition: opacity 0.4s ease;
}

.repost-overlay-item img {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
}

.repost-overlay-item span {
    color: #fff;
    font-size: 0.8rem;
    font-weight: 500;
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ============================================
   Emoji Reactions
   ============================================ */

.reaction-bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    align-items: center;
}

.reaction-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.reaction-btn:hover {
    border-color: var(--primary-color);
    background-color: var(--bg-card);
}

.reaction-btn.active {
    border-color: var(--primary-color);
    background-color: rgba(58, 157, 110, 0.15);
}

.reaction-btn .reaction-emoji {
    font-size: 1.1rem;
    line-height: 1;
}

.reaction-btn .reaction-count {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.reaction-btn.active .reaction-count {
    color: var(--primary-color);
}

.reaction-add-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: var(--bg-tertiary);
    border: 1px dashed var(--border-color);
    border-radius: 50%;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.reaction-add-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    border-style: solid;
}

.reaction-picker {
    position: relative;
    display: inline-block;
}

.reaction-picker-popup {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 4px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: 8px 12px;
    z-index: 1050;
    box-shadow: var(--shadow-soft);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.reaction-picker-popup.open {
    opacity: 1;
    pointer-events: auto;
}

.reaction-picker-option {
    font-size: 1.4rem;
    padding: 4px 6px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    line-height: 1;
}

.reaction-picker-option:hover {
    background: var(--bg-tertiary);
    transform: scale(1.3);
}

/* ============================================
   More Actions Dropdown
   ============================================ */

.more-actions-wrapper {
    position: relative;
}

.more-actions-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) 0;
    min-width: 180px;
    z-index: 1050;
    box-shadow: var(--shadow-soft);
    display: none;
}

.more-actions-menu.open {
    display: block;
}

.more-actions-menu button {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 16px;
    color: var(--text-primary);
    font-size: 0.9rem;
    text-align: left;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
}

.more-actions-menu button:hover {
    background: var(--bg-tertiary);
}

.more-actions-menu button svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* ============================================
   Friends Activity Feed
   ============================================ */

.activity-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.activity-item:last-child {
    border-bottom: none;
}

.activity-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.activity-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.activity-content p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--text-primary);
}

.activity-comment-preview {
    color: var(--text-secondary) !important;
    font-size: 0.85rem !important;
    font-style: italic;
    margin-top: 2px !important;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.activity-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.activity-thumb {
    width: 60px;
    height: 34px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
}

.activity-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================
   Friend Reactions on Video Page
   ============================================ */

.friend-reactions-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.friend-reaction-item {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.friend-reaction-item img {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    object-fit: cover;
}

/* ============================================
   Add Friend Button
   ============================================ */

.add-friend-btn {
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.add-friend-btn:hover {
    border-color: var(--primary-color);
    background: rgba(58, 157, 110, 0.1);
}

.add-friend-btn.friends {
    background: rgba(58, 157, 110, 0.15);
    border-color: var(--primary-color);
    color: var(--primary-color);
    cursor: default;
}

.add-friend-btn.pending {
    opacity: 0.6;
    cursor: default;
}

/* Share Menu */
.share-button-wrapper {
    position: relative;
}

.share-menu {
    display: none;
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    min-width: 200px;
    z-index: 1050;
    overflow: hidden;
}

.share-menu.show {
    display: block;
}

.share-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 12px 16px;
    border: none;
    background: none;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    text-align: left;
}

.share-menu-item:hover {
    background: var(--bg-tertiary);
}

.share-menu-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    stroke: var(--text-secondary);
}

/* Share Friend Modal */
.share-friend-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 400px;
    overflow-y: auto;
}

.share-friend-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.share-friend-item:hover {
    background: var(--bg-tertiary);
}

.share-friend-item img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.share-friend-item span {
    font-size: 14px;
    color: var(--text-primary);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 16px 20px;
    font-size: 11px;
    color: var(--text-tertiary);
    text-align: center;
    font-style: italic;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

/* Video Edit Button */
.video-edit-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 2;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.video-card:hover .video-edit-btn {
    opacity: 1;
}

.video-edit-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* Video Edit Modal */
.video-edit-modal {
    max-width: 400px;
    width: 90%;
    padding: var(--spacing-md);
}

.video-edit-modal .form-group {
    margin-bottom: 12px;
}

.video-edit-modal .form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.video-edit-modal .form-input {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s ease;
}

.video-edit-modal .form-input:focus {
    border-color: var(--primary-color);
}

.video-edit-modal textarea.form-input {
    resize: vertical;
    min-height: 60px;
    max-height: 80px;
}
}

.video-edit-modal select.form-input {
    appearance: none;
    cursor: pointer;
}

.thumbnail-preview {
    margin-top: 8px;
    max-width: 100%;
    max-height: 100px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.thumbnail-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.thumbnail-upload-area:hover {
    border-color: var(--primary-color);
    background: rgba(58, 157, 110, 0.05);
}

.thumbnail-upload-prompt {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 13px;
}

.thumbnail-upload-prompt svg {
    opacity: 0.5;
}

.thumbnail-or-divider {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    margin: 8px 0;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-md);
}

.btn-primary {
    padding: 8px 20px;
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s ease;
}

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

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    padding: 8px 20px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.btn-secondary:hover {
    background: var(--bg-card);
}

.banner-edit-btn {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0,0,0,0.6);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease;
    opacity: 0;
}

.profile-banner:hover .banner-edit-btn {
    opacity: 1;
}

.banner-edit-btn:hover {
    background: var(--primary-color);
}