:root {
    --primary-color: #3498db;
    --secondary-color: #2980b9;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --light-color: #f5f5f5;
    --dark-color: #333;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f9f9f9;
    color: var(--dark-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}

header h1 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

/* Upload Section */
.upload-section {
    margin-bottom: 40px;
}

.upload-container {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.upload-area {
    padding: 40px;
    text-align: center;
    border: 2px dashed #ccc;
    border-radius: var(--border-radius);
    margin: 20px;
    transition: var(--transition);
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: rgba(52, 152, 219, 0.05);
}

.upload-area i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.upload-area p {
    margin-bottom: 10px;
    color: #666;
}

.upload-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
    margin: 10px 0;
}

.upload-button:hover {
    background-color: var(--secondary-color);
}

.file-info {
    font-size: 0.8rem;
    color: #999;
    margin-top: 10px;
}

.upload-progress {
    padding: 30px;
    text-align: center;
}

.progress-container {
    height: 20px;
    background-color: #eee;
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--primary-color);
    width: 0%;
    transition: width 0.3s ease;
}

.cancel-button {
    background-color: var(--danger-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 15px;
    transition: var(--transition);
}

.cancel-button:hover {
    background-color: #c0392b;
}

/* Videos Section */
.videos-section {
    margin-bottom: 40px;
}

.videos-section h2 {
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.video-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: var(--transition);
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.video-thumbnail {
    height: 160px;
    background-color: #eee;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-thumbnail i {
    font-size: 48px;
    color: #ccc;
}

.video-thumbnail .play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: var(--transition);
}

.video-card:hover .play-button {
    opacity: 1;
}

.video-info {
    padding: 15px;
}

.video-info h3 {
    margin-bottom: 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.video-info p {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.card-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 10px;
}

.card-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    background-color: #f5f5f5;
    color: #555;
}

.card-btn:hover {
    transform: translateY(-2px);
}

.card-btn.copy-url-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

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

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

.loading {
    text-align: center;
    padding: 40px;
    grid-column: 1 / -1;
}

.loading i {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    overflow: auto;
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 20px;
    border-radius: var(--border-radius);
    max-width: 800px;
    width: 90%;
    box-shadow: var(--box-shadow);
    position: relative;
}

.close-button {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: #aaa;
    transition: var(--transition);
}

.close-button:hover {
    color: var(--dark-color);
}

.video-player-container {
    margin: 20px 0;
    background-color: #000;
    border-radius: var(--border-radius);
    overflow: hidden;
}

#video-player {
    width: 100%;
    display: block;
}

.video-details {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.video-details p {
    margin-bottom: 10px;
}

.video-url-container {
    margin-top: 15px;
}

.url-copy-container {
    display: flex;
    margin-top: 5px;
}

#video-url {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px 0 0 4px;
    font-size: 14px;
    background-color: #f9f9f9;
}

.copy-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    padding: 8px 12px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
}

.copy-btn:hover {
    background-color: var(--secondary-color);
}

.modal-actions {
    margin-top: 20px;
    display: flex;
    justify-content: flex-end;
}

.delete-btn {
    background-color: var(--danger-color);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 10px 16px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.delete-btn:hover {
    background-color: #c0392b;
}

.delete-btn i {
    font-size: 14px;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .upload-area {
        padding: 20px;
    }
    
    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
}

@media (max-width: 480px) {
    .video-grid {
        grid-template-columns: 1fr;
    }
}