/**
 * Lazy Video Loader CSS
 * Responsive video container with loading states
 */

/* Video Container */
.lvl-video-container {
    position: relative;
    width: 100%;
    max-width: 100%;
    background-color: #000;
    overflow: hidden;
    /* 16:9 aspect ratio by default */
    aspect-ratio: 16 / 9;
}

/* Support for older browsers without aspect-ratio */
@supports not (aspect-ratio: 16 / 9) {
    .lvl-video-container {
        padding-bottom: 56.25%; /* 16:9 */
        height: 0;
    }
    
    .lvl-video-container video,
    .lvl-video-container .lvl-video-placeholder {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }
}

/* Video Element */
.lvl-video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: #000;
    display: block;
}

/* Video Placeholder */
.lvl-video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s ease;
}

.lvl-video-placeholder:hover {
    background-color: rgba(0, 0, 0, 0.2);
}

/* Poster Image */
.lvl-poster-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

/* Play Button */
.lvl-play-button {
    position: relative;
    z-index: 3;
    width: 68px;
    height: 48px;
    border: none;
    background: transparent;
    cursor: pointer;
    padding: 0;
    transition: transform 0.2s ease;
}

.lvl-play-button:hover {
    transform: scale(1.1);
}

.lvl-play-button:focus {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

.lvl-play-icon {
    width: 100%;
    height: 100%;
    display: block;
}

/* Loading Text */
.lvl-loading-text {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    font-size: 14px;
    padding: 8px 16px;
    background-color: rgba(0, 0, 0, 0.7);
    border-radius: 4px;
    z-index: 2;
    white-space: nowrap;
}

/* Loading Spinner */
.lvl-loading-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
}

.lvl-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: lvl-spin 1s linear infinite;
}

@keyframes lvl-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* States */
.lvl-video-container.lvl-loaded .lvl-video-placeholder {
    display: none;
}

.lvl-video-container.lvl-error {
    background-color: #222;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lvl-video-container.lvl-error::after {
    content: 'Error loading video';
    color: #fff;
    font-size: 16px;
    padding: 10px 20px;
    background-color: rgba(255, 0, 0, 0.7);
    border-radius: 4px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .lvl-play-button {
        width: 60px;
        height: 42px;
    }
    
    .lvl-loading-text {
        font-size: 12px;
        padding: 6px 12px;
        bottom: 15px;
    }
    
    .lvl-spinner {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .lvl-play-button {
        width: 50px;
        height: 35px;
    }
    
    .lvl-loading-text {
        font-size: 11px;
        padding: 5px 10px;
        bottom: 10px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    .lvl-spinner {
        animation: none;
        border-top-color: transparent;
    }
    
    .lvl-video-placeholder,
    .lvl-play-button {
        transition: none;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .lvl-video-container {
        background-color: #000;
    }
}

/* Focus visible for keyboard navigation */
.lvl-play-button:focus-visible {
    outline: 3px solid #4CAF50;
    outline-offset: 3px;
}

/* Hide focus outline for mouse users */
.lvl-play-button:focus:not(:focus-visible) {
    outline: none;
}