/* Video Frame Extractor Dark Theme Styles */

.dark-modal .modal-content {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    border: 1px solid #404040;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease; /* 平滑的过渡效果 */
}

.dark-modal-header {
    background: #2d2d2d;
    border-bottom: 1px solid #404040;
    color: #e0e0e0;
    padding: 1rem 1.5rem;
}

.dark-modal-header .modal-title {
    color: #e0e0e0;
    font-weight: 600;
}

.dark-modal-body {
    background: #1a1a1a;
    color: #e0e0e0;
    padding: 1.5rem;
    transition: padding 0.3s ease; /* 平滑的padding过渡 */
}

.dark-modal-footer {
    background: #2d2d2d;
    border-top: 1px solid #404040;
    padding: 1rem 1.5rem;
}

/* Video Container Styles */
.dark-video-container {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    border: 1px solid #404040;
}

.dark-video-preview {
    width: 100%;
    max-height: 400px;
    background: #000;
    border-radius: 8px;
}

/* Video Controls Panel */
.video-controls-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 8px 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    pointer-events: auto;
    position: relative;
    z-index: 1000;
}

.video-time-display {
    display: flex;
    align-items: center;
    gap: 4px;
    color: #e0e0e0;
    font-size: 14px;
    font-weight: 500;
    font-family: 'Courier New', monospace;
}

.video-time-display .current-time {
    color: #007bff;
}

.video-time-display .total-time {
    color: #a0a0a0;
}

.video-time-display .time-separator {
    color: #666;
}

.video-button-group {
    display: flex;
    gap: 8px;
}

/* Video Controls */
.video-control-btn {
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #e0e0e0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
    backdrop-filter: blur(5px);
    pointer-events: auto;
    position: relative;
    z-index: 1001;
}


.video-control-btn:hover {
    background: rgba(0, 0, 0, 0.9);
    border-color: #777;
    transform: scale(1.05);
}

.video-control-btn.playing {
    background: rgba(255, 100, 100, 0.8);
    border-color: #ff6464;
}

.video-control-btn.playing:hover {
    background: rgba(255, 100, 100, 0.9);
}

/* Speed Button Special Styles */
.speed-btn {
    background: rgba(0, 123, 255, 0.8);
    border-color: rgba(0, 123, 255, 0.5);
    color: white;
    font-weight: 600;
}

.speed-btn:hover {
    background: rgba(0, 123, 255, 0.9);
    border-color: rgba(0, 123, 255, 0.7);
    transform: scale(1.05);
}

/* Playing State Indicator */
.video-control-btn.playing {
    background: rgba(255, 100, 100, 0.8);
    border-color: rgba(255, 100, 100, 0.5);
    color: white;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Video Hover Effects */
.dark-video-container:hover .video-controls-panel {
    opacity: 1;
    transform: translateY(0);
}

.video-controls-panel {
    opacity: 0.8;
    transform: translateY(-5px);
    transition: all 0.3s ease;
}

/* Loading Animation */
.dark-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.8);
    color: #e0e0e0;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    text-align: center;
    z-index: 1000;
}

.dark-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #404040;
    border-top: 4px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 10px;
}

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

/* Timeline Controls */
.dark-controls {
    margin-top: 1rem;
}

.dark-timeline-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: rgba(45, 45, 45, 0.5);
    border-radius: 8px;
    border: 1px solid #404040;
}

.dark-time-display {
    color: #e0e0e0;
    font-weight: 500;
}

.dark-time-display span {
    color: #007bff;
    font-weight: bold;
}

.dark-btn-outline {
    border-color: #dc3545;
    color: #dc3545;
    background: transparent;
}

.dark-btn-outline:hover {
    background: #dc3545;
    border-color: #dc3545;
    color: white;
}

/* Timeline Container */
.dark-timeline-container {
    margin-bottom: 1rem;
}

.dark-timeline-label {
    color: #e0e0e0;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.dark-timeline-label i {
    color: #007bff;
    margin-right: 8px;
}

.dark-timeline-label small {
    color: #a0a0a0;
    font-size: 0.85em;
}

/* Progress Timeline */
.dark-progress-timeline {
    position: relative;
    height: 20px;
    background: #333;
    border-radius: 10px;
    cursor: pointer;
    border: 1px solid #555;
    overflow: visible;
}

.dark-progress-bar {
    position: absolute;
    height: 100%;
    background: linear-gradient(90deg, #007bff 0%, #0056b3 100%);
    border-radius: 10px;
    transition: width 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 123, 255, 0.3);
}

/* Range Selectors */
.range-selector {
    position: absolute;
    top: -5px;
    height: 30px;
    width: 12px;
    background: #007bff;
    border-radius: 6px;
    cursor: ew-resize;
    border: 2px solid #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    z-index: 20;
}

.range-selector.start-selector {
    background: #28a745;
    border-color: #fff;
}

.range-selector.end-selector {
    background: #dc3545;
    border-color: #fff;
}

.range-handle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    background: #fff;
    border-radius: 50%;
    border: 2px solid currentColor;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.range-selector:hover .range-handle {
    opacity: 1;
}

/* Range Selector Labels */
.range-label {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: #e0e0e0;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.range-selector:hover .range-label,
.range-selector:active .range-label {
    opacity: 1;
}

.start-selector .range-label {
    background: rgba(40, 167, 69, 0.9);
    color: white;
}

.end-selector .range-label {
    background: rgba(220, 53, 69, 0.9);
    color: white;
}

/* Keyframes Container */
.dark-keyframes-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

/* Keyframe Markers */
.keyframe-marker {
    position: absolute;
    top: -8px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid #fff;
    cursor: pointer;
    pointer-events: auto;
    transform: translateX(-50%);
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    z-index: 15;
}

.keyframe-marker.manual-marker {
    background: #ffc107;
    border-color: #fff;
}

.keyframe-marker.uniform-marker {
    background: #17a2b8;
    border-color: #fff;
}

.keyframe-marker:hover {
    transform: translateX(-50%) scale(1.2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

/* Control Panel */
.dark-controls-panel {
    background: rgba(45, 45, 45, 0.3);
    border-radius: 8px;
    padding: 1.5rem;
    border: 1px solid #404040;
}

.dark-form-label {
    color: #e0e0e0;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.dark-form-label i {
    color: #007bff;
    margin-right: 8px;
}

.dark-form-control {
    background: #2d2d2d;
    border: 1px solid #555;
    color: #e0e0e0;
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
}

.dark-form-control:focus {
    background: #2d2d2d;
    border-color: #007bff;
    color: #e0e0e0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.dark-btn-primary {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    border: 1px solid #007bff;
    color: white;
    border-radius: 6px;
    padding: 0.5rem 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.dark-btn-primary:hover {
    background: linear-gradient(135deg, #0056b3 0%, #004085 100%);
    border-color: #0056b3;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.dark-btn-secondary {
    background: #6c757d;
    border: 1px solid #6c757d;
    color: white;
    border-radius: 6px;
    padding: 0.5rem 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.dark-btn-secondary:hover {
    background: #545b62;
    border-color: #545b62;
}

.dark-btn-success {
    background: linear-gradient(135deg, #28a745 0%, #1e7e34 100%);
    border: 1px solid #28a745;
    color: white;
    border-radius: 6px;
    padding: 0.5rem 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.dark-btn-success:hover {
    background: linear-gradient(135deg, #1e7e34 0%, #155724 100%);
    border-color: #1e7e34;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

/* Operation Guide */
.dark-guide {
    background: rgba(45, 45, 45, 0.5);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid #404040;
}

.guide-item {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    color: #e0e0e0;
    font-size: 0.9em;
}

.guide-item:last-child {
    margin-bottom: 0;
}

.guide-item i {
    color: #007bff;
    margin-right: 10px;
    width: 16px;
    text-align: center;
}

.guide-item span {
    flex: 1;
}

/* Keyframe Stats */
.keyframe-stats {
    text-align: center;
    margin-top: 0.5rem;
}

.keyframe-stats small {
    color: #a0a0a0;
    font-size: 0.85em;
}

.keyframe-stats i {
    color: #007bff;
    margin-right: 5px;
}

/* 模态框底部按钮暗黑主题样式 */
.modal-footer-buttons {
    border-top-color: rgba(255, 255, 255, 0.08);
}

.modal-action-btn {
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.modal-action-btn .fas {
    margin-right: 0;
    font-size: 14px;
}

.modal-action-btn .btn-text {
    transition: all 0.3s ease;
}

/* 按钮悬停效果优化 */
.modal-action-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* 取消按钮特殊样式 */
.modal-action-btn.dark-btn-secondary .fas.fa-times {
    color: #dc3545;
}

/* 确认按钮特殊样式 */
.modal-action-btn.dark-btn-primary .fas.fa-check {
    color: #ffffff;
}

/* Animation Effects */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dark-modal.show .modal-dialog {
    animation: fadeIn 0.3s ease-out;
}

.keyframe-marker {
    animation: fadeIn 0.3s ease-out;
}

/* Hover Effects */
.dark-progress-timeline:hover {
    box-shadow: 0 0 15px rgba(0, 123, 255, 0.2);
}

.video-control-btn:active {
    transform: scale(0.95);
}

/* Focus States */
.dark-form-control:focus,
.dark-btn-primary:focus,
.dark-btn-secondary:focus,
.dark-btn-success:focus {
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}