body {
    background-color: #f5f5f5;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

h1 {
    color: #333;
    font-weight: 600;
}

.player-card {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border: none;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.player-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.card-header {
    padding: 12px 20px;
    font-weight: 600;
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
}

.video-player {
    width: 100%;
    height: auto;
    min-height: 300px;
    background-color: #000;
    display: block;
}

.player-info {
    padding: 10px 15px;
    background-color: #f8f9fa;
    border-top: 1px solid #dee2e6;
}

.player-info small {
    font-size: 0.85rem;
}

#status1, #status2, #status3, #status4 {
    font-weight: 600;
}

.status-loading {
    color: #ffc107 !important;
}

.status-playing {
    color: #28a745 !important;
}

.status-error {
    color: #dc3545 !important;
}

.status-paused {
    color: #6c757d !important;
}

/* Responsividade */
@media (max-width: 768px) {
    .video-player {
        min-height: 250px;
    }
    
    h1 {
        font-size: 1.5rem;
    }
}

@media (max-width: 576px) {
    .video-player {
        min-height: 200px;
    }
    
    .btn-group {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-group .btn {
        margin-bottom: 5px;
        width: 100%;
    }
}

/* Loading spinner */
.loading-spinner {
    display: inline-block;
    width: 12px;
    height: 12px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 5px;
}

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