/* TikTok-Style Vertical Scrolling Feed */

.tiktok-feed-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    overflow-y: scroll;
    overflow-x: hidden;
    scroll-snap-type: y mandatory;
    scroll-behavior: smooth;
    background-color: #000;
    -webkit-overflow-scrolling: touch;
}

.tiktok-video-item {
    position: relative;
    width: 100%;
    height: 100vh;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #000;
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.tiktok-video-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tiktok-video-player {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: #000;
}

.tiktok-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 1rem;
    background: linear-gradient(to bottom, 
        rgba(0, 0, 0, 0.3) 0%, 
        transparent 20%, 
        transparent 80%, 
        rgba(0, 0, 0, 0.7) 100%);
    z-index: 1;
}

.tiktok-video-player {
    position: relative;
    z-index: 0;
    cursor: pointer;
}

/* Mute/Unmute Button */
.tiktok-mute-btn {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    background: rgba(0, 0, 0, 0.6);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    cursor: pointer;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
    z-index: 10;
    pointer-events: auto;
}

.tiktok-mute-btn:hover {
    background: rgba(0, 0, 0, 0.8);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1);
}

.tiktok-mute-btn i {
    font-size: 1.25rem;
}

.tiktok-mute-btn.unmuted {
    background: rgba(79, 70, 229, 0.8);
    border-color: rgba(79, 70, 229, 1);
}

.tiktok-mute-btn.unmuted:hover {
    background: rgba(79, 70, 229, 1);
}

/* Right Side Actions */
.tiktok-video-actions {
    position: absolute;
    right: 1rem;
    bottom: 6rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    pointer-events: auto;
}

.tiktok-action-item {
    margin-bottom: 0.5rem;
}

.tiktok-action-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid #fff;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.tiktok-action-avatar:hover {
    transform: scale(1.1);
}

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

.tiktok-action-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    cursor: pointer;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
    pointer-events: auto;
}

.tiktok-action-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.tiktok-action-btn i {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.tiktok-action-btn.liked {
    color: #ff3040;
}

.tiktok-action-btn.liked i {
    animation: heartBeat 0.3s ease;
}

@keyframes heartBeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.3); }
}

.action-count {
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 0.25rem;
}

/* Bottom Info */
.tiktok-video-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 4rem;
    padding: 1.5rem;
    color: #fff;
    pointer-events: auto;
}

.tiktok-creator-info {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}

.tiktok-creator-name {
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.tiktok-creator-name:hover {
    color: var(--primary-color);
}

.tiktok-video-title {
    font-weight: 600;
    font-size: 0.95rem;
    margin: 0.5rem 0;
    line-height: 1.4;
    word-wrap: break-word;
}

.tiktok-video-description {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.9);
    margin: 0.5rem 0;
    line-height: 1.4;
    word-wrap: break-word;
}

.tiktok-video-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.8);
}

.tiktok-meta-item {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: color 0.2s ease;
    pointer-events: auto;
    cursor: default;
}

.tiktok-meta-item:hover {
    color: #fff;
}

.tiktok-meta-item a {
    pointer-events: none;
    cursor: default;
}

/* Empty State */
.tiktok-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    color: #fff;
}

/* Mobile Optimizations */
@media (max-width: 768px) {
    .tiktok-video-actions {
        right: 0.75rem;
        bottom: 5rem;
        gap: 1.25rem;
    }
    
    .tiktok-action-btn {
        width: 44px;
        height: 44px;
    }
    
    .tiktok-action-btn i {
        font-size: 1.25rem;
    }
    
    .tiktok-action-avatar {
        width: 45px;
        height: 45px;
    }
    
    .tiktok-video-info {
        right: 3.5rem;
        padding: 1rem;
    }
    
    .tiktok-video-title {
        font-size: 0.9rem;
    }
    
    .tiktok-video-description {
        font-size: 0.8rem;
    }
}

/* Hide scrollbar but keep functionality */
.tiktok-feed-container::-webkit-scrollbar {
    display: none;
}

.tiktok-feed-container {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* Loading indicator */
.tiktok-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    color: #fff;
}

.tiktok-loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Swipe Indicator */
.tiktok-swipe-indicator {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.tiktok-swipe-indicator.active {
    opacity: 1;
}

.tiktok-swipe-indicator.up {
    color: rgba(255, 255, 255, 0.8);
    font-size: 2rem;
}

.tiktok-swipe-indicator.down {
    color: rgba(255, 255, 255, 0.8);
    font-size: 2rem;
}

.tiktok-swipe-indicator i {
    display: block;
    animation: swipePulse 0.6s ease infinite;
}

@keyframes swipePulse {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.2); opacity: 1; }
}

/* Smooth scroll behavior */
.tiktok-feed-container {
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
}