/* Video Player Container - centered on page */
.video-player-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 70vh;
}

/* Loading Container */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

/* Spinner Animation */
.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    margin-top: 20px;
    color: #666;
    font-size: 16px;
}

/* Video Element - centered within container */
.simulation-video {
    max-width: 900px;
    width: 100%;
    max-height: 70vh;
    background: #000;
    border-radius: 8px;
    margin: 0 auto;
}

.simulation-video.hidden {
    display: none;
}

/* Error Container */
.error-container {
    padding: 40px;
    background: #f8d7da;
    border-radius: 8px;
    margin: 20px 0;
}

.error-message {
    color: #721c24;
    font-size: 18px;
    margin: 0 0 20px 0;
}

/* Info Message */
.info-message {
    padding: 40px;
    background: #d1ecf1;
    color: #0c5460;
    border-radius: 8px;
    margin: 20px 0;
    font-size: 18px;
    text-align: center;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
    padding: 20px;
    border-top: 1px solid #ddd;
}

/* Utility */
.hidden {
    display: none !important;
}