/* CSS Variables for Theming */
:root {
    --bg-primary: #f0f2f5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f8f9fa;
    --bg-player: #000000;
    --bg-input: #f8f9fa;
    --bg-button: #007bff;
    --bg-button-hover: #0056b3;
    --bg-header: #ffffff;
    --bg-header-button-hover: rgba(0, 0, 0, 0.05);
    --bg-overlay-gradient: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    --bg-speed-options: rgba(40, 40, 40, 0.9);
    --bg-speed-options-hover: rgba(255, 255, 255, 0.1);
    --bg-speed-options-active: rgba(0, 123, 255, 0.8);

    --text-primary: #1c1e21;
    --text-secondary: #6c757d;
    --text-on-button: #ffffff;
    --text-on-dark: #ffffff;
    --text-header: #1c1e21;

    --border-primary: #ddd;
    --border-secondary: #ccc;
    --border-focus: #007bff;
    --border-header: #dddddd;
    --border-pip: rgba(255, 255, 255, 0.1);
    --border-pip-hover: #007bff;

    --shadow-primary: rgba(0,0,0,0.12);
    --shadow-secondary: rgba(0,0,0,0.24);
    --shadow-focus: rgba(0, 122, 255, 0.2);
    
    --icon-color: #1c1e21;
    --icon-filter-on-dark: brightness(0) invert(1);
    --calendar-picker-filter: none;
}

body.dark-theme {
    --bg-primary: #18191a;
    --bg-secondary: #242526;
    --bg-tertiary: #3a3a3a;
    --bg-player: #000000;
    --bg-input: #3a3a3a;
    --bg-button: #007aff;
    --bg-button-hover: #0056b3;
    --bg-header: #242526;
    --bg-header-button-hover: rgba(255, 255, 255, 0.1);

    --text-primary: #e4e6eb;
    --text-secondary: #b0b3b8;
    --text-on-button: #ffffff;
    --text-on-dark: #ffffff;
    --text-header: #e4e6eb;

    --border-primary: #393a3b;
    --border-secondary: #444444;
    --border-focus: #007aff;
    --border-header: #393a3b;
    --border-pip: rgba(255, 255, 255, 0.1);
    --border-pip-hover: #007aff;

    --shadow-primary: rgba(0,0,0,0.2);
    --shadow-secondary: rgba(0,0,0,0.3);
    --shadow-focus: rgba(0, 122, 255, 0.3);
    
    --icon-color: #e4e6eb;
    --icon-filter-on-dark: brightness(0) invert(0.9);
    --calendar-picker-filter: invert(1);
}

/* Global Reset & Body */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Helvetica Neue', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh; /* Fallback for browsers that don't support dvh */
    height: 100dvh; /* Dynamic Viewport Height for mobile browsers */
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    height: 100%;
    display: flex;
    flex-direction: row;
    overflow: hidden; /* Prevent layout shifts from scrollbars */
}

/* Main Content */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background-color: var(--bg-header);
    flex-shrink: 0;
    border-bottom: 1px solid var(--border-header);
    z-index: 50;
    color: var(--text-header);
    position: relative;
}

.header-title {
    display: flex;
    align-items: center;
    font-size: 1.2em;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.header-logo {
    width: 28px;
    height: 28px;
    margin-right: 10px;
}

.header-left, .header-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.main-header .theme-toggle-btn {
    font-size: 1.2rem;
    padding: 0;
    line-height: 1;
    width: 40px;
    height: 40px;
    transition: transform 0.3s ease;
}

.theme-toggle-btn:hover {
    transform: scale(1.1) rotate(15deg);
}

.lang-toggle-btn {
    font-size: 1rem;
    font-weight: bold;
    color: var(--text-header);
    margin-left: 8px;
}

#revealFileBtn {
    font-size: 1.2rem;
    margin-right: 4px;
    position: relative;
    top: -4px;
    left: 2px;
}

#revealFileBtn:disabled {
    cursor: not-allowed;
    opacity: 0.4;
}

#downloadFileBtn {
    font-size: 1.2rem;
    margin-right: 4px;
    position: relative;
    top: -3px;
    left: 2px;
}

#downloadFileBtn:disabled {
    cursor: not-allowed;
    opacity: 0.4;
}

.toggle-sidebar-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: background-color 0.2s ease;
}

.toggle-sidebar-btn svg {
    transition: transform 0.3s ease;
    width: 24px;
    height: 24px;
}

.toggle-sidebar-btn:hover {
    background-color: var(--bg-header-button-hover);
}

.open-sidebar-btn {
    display: none; /* 默认隐藏 */
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: background-color 0.2s ease;
}

.open-sidebar-btn svg {
    width: 24px;
    height: 24px;
}

.open-sidebar-btn:hover {
    background-color: var(--bg-header-button-hover);
}

.toggle-sidebar-btn.collapsed svg {
    transform: rotate(180deg);
}

/* Sidebar */
.sidebar {
    width: 380px;
    min-width: 380px;
    max-width: 380px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-primary);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: margin-left 0.3s ease-in-out, width 0.3s ease, background-color 0.3s, border-color 0.3s;
    position: relative;
}

.sidebar.drag-over {
    background-color: rgba(102, 126, 234, 0.1);
    box-shadow: inset 0 0 20px rgba(102, 126, 234, 0.3);
}

.sidebar.collapsed {
    margin-left: -380px;
    width: 380px;
}

.sidebar-header {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid rgba(102, 126, 234, 0.2);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    transition: background-color 0.3s, border-color 0.3s;
    gap: 10px;
}

.sidebar-header .header-title {
    flex-grow: 1;
    font-size: 1.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

.github-link {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: color 0.2s ease, transform 0.2s ease;
    padding: 4px;
    border-radius: 4px;
}

.github-link:hover {
    color: var(--text-primary);
    transform: scale(1.1);
}

.github-link svg {
    display: block;
}

.filters {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--border-primary);
    background-color: var(--bg-secondary);
    transition: background-color 0.3s, border-color 0.3s;
}

.filter-group {
    display: flex;
    flex-direction: column;
}

.filter-group label {
    font-size: 0.75rem; /* 12px */
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
    padding: 0 0 0.2rem;
}

#dateFilter, #eventFilter {
    flex: 1;
    padding: 0.625rem; /* 10px */
    border: 1px solid var(--border-secondary);
    border-radius: 6px;
    font-size: 1rem; /* 16px to prevent iOS zoom */
    background-color: var(--bg-input);
    color: var(--text-primary);
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.3s, color 0.3s;
    cursor: pointer;
    /* Fix for mobile browsers overriding styles */
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    /* Prevent color scheme override */
    color-scheme: dark;
}

/* Ensure dark theme input styles are applied with higher specificity */
body.dark-theme #dateFilter,
body.dark-theme #eventFilter,
.dark-theme input#dateFilter,
.dark-theme select#eventFilter {
    background-color: var(--bg-input) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-secondary) !important;
    -webkit-text-fill-color: var(--text-primary);
}

#dateFilter:focus, #eventFilter:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 2px var(--shadow-focus);
}

#eventFilter {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%236c757d' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.625rem center;
    padding-right: 2rem;
}

body.dark-theme #eventFilter {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23b0b3b8' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
}

/* Date input wrapper with clear button */
.date-input-wrapper {
    position: relative;
    display: flex;
    flex: 1;
}

.date-input-wrapper #dateFilter {
    flex: 1;
    padding-right: 36px;
}

.clear-date-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    border-radius: 50%;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.clear-date-btn.visible {
    opacity: 1;
    visibility: visible;
}

.clear-date-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
}

#dateFilter::-webkit-calendar-picker-indicator {
    filter: var(--calendar-picker-filter);
    cursor: pointer;
}

.file-list {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    min-height: 0;
}

.empty-state {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    color: var(--text-secondary);
    padding: 2rem;
    text-align: center;
}

.help-text {
    align-items: flex-start;
    justify-content: flex-start;
    text-align: left;
    padding: 30px;
}

.help-text ol {
    padding-left: 20px;
    margin-top: 0;
    margin-bottom: 20px;
}

.help-text li {
    margin-bottom: 10px;
    line-height: 1.6;
    color: var(--text-primary);
}

.help-text .note {
    font-size: 0.9em;
    color: var(--text-secondary);
    margin-top: 15px;
    border-top: 1px solid var(--border-primary);
    padding-top: 15px;
    width: 100%;
}

.help-text .desktop-tip {
    font-size: 0.9em;
    color: var(--text-secondary);
    margin-top: 15px;
    padding: 12px 15px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: 8px;
    border-left: 3px solid #667eea;
    width: 100%;
    box-sizing: border-box;
}

.help-text .desktop-link {
    display: inline-block;
    margin-top: 8px;
    padding: 6px 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.85em;
    font-weight: 500;
    transition: all 0.2s ease;
}

.help-text .desktop-link:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.video-card {
    display: flex;
    flex-direction: column;
    width: 100%;
    margin-bottom: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px var(--shadow-primary), 0 1px 2px var(--shadow-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.video-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 3px 6px var(--shadow-primary), 0 3px 6px var(--shadow-secondary);
}

.video-card.active {
    outline: 3px solid var(--border-focus);
    box-shadow: 0 0 0 3px var(--shadow-focus);
}

.video-thumbnail {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--bg-tertiary);
    overflow: hidden;
}

.video-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.no-thumb {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #343a40; /* Keep dark for contrast */
    color: white;
    font-weight: bold;
}

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0,0,0,0.6);
    color: var(--text-on-dark);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    z-index: 1;
}

.video-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--border-primary);
}

.video-time {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.video-type {
    font-size: 0.8rem;
    color: var(--text-secondary);
    background-color: var(--bg-tertiary);
    padding: 4px 8px;
    border-radius: 6px;
}

.sidebar-footer {
    flex-shrink: 0;
    width: 100%;
    padding: 1rem;
    border-top: 1px solid var(--border-primary);
    background-color: var(--bg-secondary);
    z-index: 10;
    transition: background-color 0.3s, border-color 0.3s;
}

#selectFolderBtn {
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    color: #ffffff;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

#selectFolderBtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

/* Player Area */
.player-area {
    flex: 1;
    background-color: var(--bg-player);
    position: relative;
    overflow: hidden;
}

.player-area.empty {
    background: url('./imgs/cybertruck-bg.jpg') center/cover no-repeat;
}

.player-area.empty .video-container,
.player-area.empty .video-controls-overlay {
    display: none !important;
    visibility: hidden !important;
}

.video-container {
    position: absolute;
    background-color: #111; /* Keep dark */
    transition: all 0.3s ease-in-out;
    border: 2px solid transparent;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.5);
}

.video-container.is-main {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    border-radius: 0;
    box-shadow: none;
}

.video-container.is-pip {
    width: 24%;
    height: 24%;
    z-index: 20;
    cursor: pointer;
    border-color: var(--border-pip);
}

.video-container.is-pip:hover {
    border-color: var(--border-pip-hover);
    transform: scale(1.05);
}

.video-container.pos-top-left { top: 2%; left: 2%; }
.video-container.pos-top-right { top: 2%; right: 2%; }
.video-container.pos-bottom-left { bottom: 12%; left: 2%; }
.video-container.pos-bottom-right { bottom: 12%; right: 2%; }

.video-container.hidden {
    opacity: 0;
    transform: scale(0);
}

.video-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-container.empty::after {
    content: '无信号';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-secondary);
    background-color: var(--bg-player);
    font-size: 14px;
}

.camera-label {
    position: absolute;
    top: 8px;
    left: 8px;
    background-color: rgba(0, 0, 0, 0.6);
    color: var(--text-on-dark);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
    z-index: 30;
    opacity: 0;
    transition: opacity 0.2s;
}

.video-container.is-pip .camera-label,
.video-container.is-grid .camera-label,
.video-container.is-main .camera-label,
.video-container.is-active-single .camera-label {
    opacity: 1;
}

/* Modern Video Controls */
.video-controls-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-overlay-gradient);
    color: var(--text-on-dark);
    opacity: 0;
    transition: opacity 0.3s ease;
    padding: 10px 20px;
    z-index: 40;
    pointer-events: none;
}

.video-controls-overlay.show {
    opacity: 1;
    pointer-events: all;
}

.player-area.hide-cursor {
    cursor: none;
}

.video-controls-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 8px;
}




.progress-container {
    width: 100%;
    height: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    position: relative;
}


.progress-track {
    width: 100%;
    height: 4px;
    background-color: var(--border-pip);
    border-radius: 2px;
    position: relative;
}

.progress-played {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background-color: var(--text-on-dark);
    border-radius: 2px;
    width: 0;
    z-index: 1;
}

.clip-selection {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background-color: rgba(0, 123, 255, 0.3);
    border-left: 2px solid #007bff;
    border-right: 2px solid #007bff;
    pointer-events: none;
    display: none;
    z-index: 2;
}

.clip-selection.active {
    display: block;
}

.clip-handle {
    width: 16px;
    height: 24px;
    background-color: #007bff;
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 5;
    cursor: ew-resize;
    border-radius: 3px;
    display: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.clip-handle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 2px;
    height: 12px;
    background-color: rgba(255, 255, 255, 0.8);
}

.clip-handle.active {
    display: block;
}

.clip-handle:hover {
    background-color: #0056b3;
}

.clip-btn {
    color: var(--text-on-dark);
}

.clip-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.confirm-clip-btn {
    color: #28a745;
    animation: pulse-confirm 2s infinite;
}

.confirm-clip-btn:hover {
    color: #218838;
}

@keyframes pulse-confirm {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.progress-handle {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--text-on-dark);
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    left: 0;
    z-index: 2;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.event-marker {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background-color: #ff4d4d;
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    z-index: 3;
    pointer-events: none;
}

.progress-container:hover .progress-handle,
.progress-container:hover .time-preview {
    opacity: 1;
}

.time-preview {
    position: absolute;
    bottom: 25px;
    background-color: rgba(0, 0, 0, 0.8);
    color: var(--text-on-dark);
    padding: 5px 8px;
    border-radius: 4px;
    font-size: 0.9em;
    transform: translateX(-50%);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.time-preview.show {
    opacity: 1;
}

.controls-section-wrapper {
    position: relative;
    width: 100%;
}

.controls-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}


.controls-left, .controls-center, .controls-right {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.controls-left {
    justify-content: flex-start;
    gap: 12px;
    flex-shrink: 0;
}

.controls-center {
    justify-content: center;
    flex: 1;
}

.controls-right {
    justify-content: flex-end;
    flex-shrink: 0;
}

.video-time-display {
    color: var(--text-on-dark);
    font-size: 14px;
    font-weight: 300;
    min-width: 100px;
}

.control-btn {
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease;
}

.control-btn:hover {
    background: var(--bg-header-button-hover);
}

.control-btn img {
    width: 20px;
    height: 20px;
    filter: var(--icon-filter-on-dark);
}

.header-center-info {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-location {
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}

.header-location .city-text {
    text-decoration: underline;
}

.header-location:hover {
    text-decoration: underline;
}

.real-time-clock {
    color: var(--text-header);
    font-size: 1rem;
    font-weight: 500;
    white-space: nowrap;
    display: none; /* Hidden by default */
}

.real-time-clock.visible {
    display: block;
}

.speed-control {
    position: relative;
}

.speed-btn {
    width: auto;
    padding: 0 12px;
    font-size: 14px;
    color: var(--text-on-dark);
}

.speed-options {
    display: none;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--bg-speed-options);
    border-radius: 6px;
    margin-bottom: 5px; /* Reduced margin to prevent gap issue */
    padding: 5px 0;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.3);
}

.speed-control.active .speed-options {
    display: block;
}

.speed-options div {
    padding: 8px 20px;
    cursor: pointer;
    color: var(--text-on-dark);
    font-size: 14px;
    white-space: nowrap;
}

.speed-options div:hover {
    background-color: var(--bg-speed-options-hover);
}

.speed-options div.active {
    background-color: var(--bg-speed-options-active);
    font-weight: bold;
}

.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.overlay.active {
    display: block;
}

/* Responsive Design */

/* Medium screens - narrower sidebar */
@media (max-width: 1200px) {
    .sidebar {
        width: 320px;
        min-width: 320px;
        max-width: 320px;
    }
    
    .sidebar.collapsed {
        margin-left: -320px;
        width: 320px;
    }
}

@media (max-width: 1000px) {
    .sidebar {
        width: 280px;
        min-width: 280px;
        max-width: 280px;
    }
    
    .sidebar.collapsed {
        margin-left: -280px;
        width: 280px;
    }
    
    .sidebar-header {
        padding: 0.75rem;
    }
    
    .sidebar-header .header-title {
        font-size: 1.1rem;
    }
    
    .filter-section {
        padding: 0.75rem;
    }
}

/* Small screens - overlay sidebar */
@media (max-width: 768px) {
    .sidebar {
        position: absolute;
        top: 0;
        left: 0;
        bottom: 0; /* Force sidebar to stretch to bottom */
        width: 85%;
        max-width: 380px;
        height: auto; /* Allow bottom:0 to control height */
        z-index: 1000;
        min-width: unset;
        
        /* Override desktop animation and use transform for overlay effect */
        margin-left: 0;
        transform: translateX(0);
        transition: transform 0.3s ease-in-out;
    }

    .sidebar.collapsed {
        /* Override desktop animation and use transform */
        margin-left: 0;
        transform: translateX(-100%);
        width: 85%;
    }
    
    /* Fix mobile browser input styling - force dark theme colors */
    #dateFilter,
    #eventFilter,
    input#dateFilter,
    select#eventFilter {
        -webkit-appearance: none !important;
        -moz-appearance: none !important;
        appearance: none !important;
        background-color: var(--bg-input) !important;
        color: var(--text-primary) !important;
        -webkit-text-fill-color: var(--text-primary) !important;
        border-color: var(--border-secondary) !important;
        border-radius: 6px !important;
        font-size: 16px !important; /* Prevent iOS zoom on focus */
        opacity: 1 !important; /* Fix iOS disabled-like appearance */
    }
    
    /* Override iOS/Safari input styling */
    input[type="text"]#dateFilter {
        background: var(--bg-input) !important;
        color: var(--text-primary) !important;
        -webkit-text-fill-color: var(--text-primary) !important;
    }

}

body.sidebar-collapsed .open-sidebar-btn {
    display: block;
}

/* Map Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    padding: 16px;
    box-sizing: border-box;
}

.modal-overlay.show {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    background: rgba(30, 30, 40, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 24px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.05);
    text-align: center;
    position: relative;
    transform: scale(0.95);
    transition: transform 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-height: calc(100vh - 32px);
    overflow-y: auto;
}

.modal-overlay.show .modal-content {
    transform: scale(1);
}

#mapModalTitle {
    margin-top: 0;
    margin-bottom: 20px;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.modal-buttons {
    display: flex;
    gap: 15px;
}

.map-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    color: #fff;
    cursor: pointer;
    transition: opacity 0.2s ease;
}

.map-btn:hover {
    opacity: 0.85;
}

.map-btn.gaode {
    background-color: #007aff; /* 高德地图蓝 */
}

.map-btn.google {
    background-color: #4285F4;
}

.close-modal-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1;
}

/* Download Buttons Container */
.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 12px;
}

/* Download Button Styles */
.download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    border: none;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: #fff;
    cursor: pointer;
    transition: all 0.2s ease;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
    position: relative;
    overflow: hidden;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.download-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.download-btn:hover::before {
    left: 100%;
}

.download-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(102, 126, 234, 0.3);
}

.download-btn .btn-icon {
    font-size: 1rem;
}

.download-btn .btn-text {
    flex: 1;
    text-align: center;
}

.download-btn .btn-size {
    font-size: 0.75rem;
    opacity: 0.9;
    font-weight: 400;
    background: rgba(255, 255, 255, 0.15);
    padding: 2px 8px;
    border-radius: 4px;
}

/* Grid video button variant - slightly different shade */
.download-btn.grid-btn {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    box-shadow: 0 2px 8px rgba(118, 75, 162, 0.3);
}

.download-btn.grid-btn:hover {
    box-shadow: 0 4px 12px rgba(118, 75, 162, 0.4);
}

/* Clip Modal Styles */
.clip-modal {
    max-width: 480px;
    width: 95%;
    padding: 20px;
    background: rgba(25, 25, 35, 0.9);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
}

.clip-modal h4 {
    font-size: 1.25rem;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.clip-info {
    background: rgba(102, 126, 234, 0.08);
    border: 1px solid rgba(102, 126, 234, 0.15);
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 16px;
}

.clip-info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    font-size: 0.875rem;
    padding: 4px 0;
}

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

.clip-info-label {
    color: var(--text-secondary);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

.clip-info-label::before {
    content: '•';
    color: #667eea;
    font-size: 1rem;
}

#clipDuration {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    font-size: 1rem;
}

#clipStartTime,
#clipEndTime {
    color: var(--text-primary);
    font-weight: 500;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
}

.clip-options {
    margin-bottom: 16px;
}

.clip-options.disabled {
    pointer-events: none;
    opacity: 0.5;
    user-select: none;
}

.clip-info.disabled {
    pointer-events: none;
    opacity: 0.5;
}

.clip-option-group {
    margin-bottom: 10px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.3s ease;
}

.clip-option-group:hover {
    border-color: rgba(102, 126, 234, 0.3);
    background: rgba(102, 126, 234, 0.05);
}

.clip-option-group > label:first-child {
    display: block;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 10px;
    font-size: 0.875rem;
}

.camera-checkboxes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.camera-checkboxes label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-bottom: 0;
    font-weight: 500;
    font-size: 0.85rem;
    padding: 8px 10px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.camera-checkboxes label:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: rgba(102, 126, 234, 0.25);
}

.camera-checkboxes input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.2);
    cursor: pointer;
    position: relative;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.camera-checkboxes input[type="checkbox"]:hover {
    border-color: rgba(102, 126, 234, 0.5);
    background: rgba(102, 126, 234, 0.1);
}

.camera-checkboxes input[type="checkbox"]:checked {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: transparent;
}

.camera-checkboxes input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 5px;
    height: 9px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.clip-option-group input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    background: rgba(0, 0, 0, 0.2);
    cursor: pointer;
    position: relative;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.clip-option-group input[type="checkbox"]:hover {
    border-color: rgba(102, 126, 234, 0.5);
    background: rgba(102, 126, 234, 0.1);
}

.clip-option-group input[type="checkbox"]:checked {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: transparent;
}

.clip-option-group input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Clip option row - two checkboxes in one line */
.clip-option-row {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

.clip-checkbox-label {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
    font-weight: 500;
}

.clip-checkbox-label:hover {
    border-color: rgba(102, 126, 234, 0.3);
    background: rgba(102, 126, 234, 0.05);
}

.clip-checkbox-label input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.2);
    cursor: pointer;
    position: relative;
    transition: all 0.2s ease;
    flex-shrink: 0;
    margin: 0;
}

.clip-checkbox-label input[type="checkbox"]:hover {
    border-color: rgba(102, 126, 234, 0.5);
    background: rgba(102, 126, 234, 0.1);
}

.clip-checkbox-label input[type="checkbox"]:checked {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: transparent;
}

.clip-checkbox-label input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 1px;
    width: 5px;
    height: 9px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.clip-progress {
    margin-bottom: 16px;
    padding: 12px;
    background: rgba(102, 126, 234, 0.05);
    border-radius: 10px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 8px;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.2);
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    width: 0;
    transition: width 0.3s ease;
    box-shadow: 0 0 8px rgba(102, 126, 234, 0.5);
}

.progress-bar-fill.indeterminate {
    width: 30% !important;
    animation: indeterminate 1.5s ease-in-out infinite;
}

@keyframes indeterminate {
    0% {
        transform: translateX(-100%);
    }
    50% {
        transform: translateX(200%);
    }
    100% {
        transform: translateX(-100%);
    }
}

.progress-text {
    text-align: center;
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 500;
}

.modal-buttons {
    gap: 10px;
}

.modal-buttons button {
    flex: 1;
    padding: 10px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.modal-buttons button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

#startClipBtn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
}

#startClipBtn:hover {
    background: linear-gradient(135deg, #5568d3 0%, #6a3f91 100%);
}

#startClipBtn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

#cancelClipBtn {
    background: rgba(108, 117, 125, 0.8);
    backdrop-filter: blur(4px);
    border: none;
}

#cancelClipBtn:hover {
    background: rgba(90, 98, 104, 0.9);
}

#cancelClipBtn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Clip Modal scrollbar styling */
.clip-modal::-webkit-scrollbar {
    width: 6px;
}

.clip-modal::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 3px;
}

.clip-modal::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.4);
    border-radius: 3px;
}

.clip-modal::-webkit-scrollbar-thumb:hover {
    background: rgba(102, 126, 234, 0.6);
}

/* Close button styling for clip modal */
.clip-modal .close-modal-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.clip-modal .close-modal-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

/* File Path Modal Styles */
.file-path-modal {
    max-width: 560px;
    width: 95%;
    padding: 24px;
    background: rgba(25, 25, 35, 0.95);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
}

.file-path-modal h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    text-align: center;
}

.file-path-container {
    display: flex;
    gap: 8px;
    align-items: center;
}

.file-path-input {
    flex: 1;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: 'Consolas', 'Monaco', monospace;
    outline: none;
    transition: all 0.2s ease;
}

.file-path-input:focus {
    border-color: rgba(102, 126, 234, 0.6);
    background: rgba(255, 255, 255, 0.1);
}

.copy-path-btn {
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.copy-path-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.copy-path-btn:active {
    transform: translateY(0);
}

.copy-success-hint {
    margin-top: 12px;
    text-align: center;
    color: #4ade80;
    font-size: 0.85rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.copy-success-hint.show {
    opacity: 1;
}

/* City Link Style */
.video-time .city-link {
    cursor: pointer;
    color: var(--border-focus);
    text-decoration: none;
    font-weight: 600;
}

.video-time .city-link:hover {
    text-decoration: underline;
}

/* Custom Flatpickr Styles */
.flatpickr-calendar {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    box-shadow: 0 5px 15px var(--shadow-primary);
    color: var(--text-primary);
}

.flatpickr-months .flatpickr-month,
.flatpickr-weekdays,
.flatpickr-weekday,
span.flatpickr-weekday {
    background-color: transparent;
    color: var(--text-primary);
}

.flatpickr-day {
    color: var(--text-primary);
    border-color: transparent;
}

.flatpickr-day:hover,
.flatpickr-day:focus {
    background-color: var(--bg-tertiary);
    border-color: var(--bg-tertiary);
}

.flatpickr-day.today {
    border-color: var(--border-focus);
}

.flatpickr-day.selected,
.flatpickr-day.startRange,
.flatpickr-day.endRange {
    background: var(--bg-button);
    color: var(--text-on-button);
    border-color: var(--bg-button);
}

.flatpickr-day.disabled,
.flatpickr-day.disabled:hover {
    color: var(--text-secondary);
    opacity: 0.5;
    background: transparent;
}

.flatpickr-months .flatpickr-prev-month,
.flatpickr-months .flatpickr-next-month {
    fill: var(--text-primary);
}

.flatpickr-months .flatpickr-prev-month:hover svg,
.flatpickr-months .flatpickr-next-month:hover svg {
    fill: var(--border-focus);
}

/* Fix for prev/next month day visibility in dark mode */
body.dark-theme .flatpickr-day.prevMonthDay,
body.dark-theme .flatpickr-day.nextMonthDay {
    color: var(--text-secondary);
    opacity: 0.7;
}

body.dark-theme .flatpickr-day.prevMonthDay:hover,
body.dark-theme .flatpickr-day.nextMonthDay:hover,
body.dark-theme .flatpickr-day.prevMonthDay:focus,
body.dark-theme .flatpickr-day.nextMonthDay:focus {
    color: var(--text-primary); /* Use primary text color on hover */
    background-color: var(--bg-tertiary); /* Keep consistent hover background */
}

/* Custom styles for flatpickr month dropdown */
.flatpickr-monthDropdown-months {
    border-radius: 6px;
    border: 1px solid var(--border-primary);
    background: var(--bg-secondary);
    max-height: 220px; /* Limit height and make it scrollable */
    overflow-y: auto;
}

.flatpickr-monthDropdown-months .flatpickr-monthDropdown-month {
    padding: 8px;
    color: var(--text-primary);
    background: transparent;
}

.flatpickr-monthDropdown-months .flatpickr-monthDropdown-month:hover {
    background: var(--bg-tertiary);
}

.flatpickr-monthDropdown-months .flatpickr-monthDropdown-month.selected {
    background: var(--bg-button);
    color: var(--text-on-button);
}

/* Dark theme overrides for flatpickr month dropdown */
body.dark-theme .flatpickr-calendar .flatpickr-monthDropdown-months {
    border-color: var(--border-primary) !important;
    background: var(--bg-secondary) !important;
}

body.dark-theme .flatpickr-calendar .flatpickr-monthDropdown-months .flatpickr-monthDropdown-month {
    color: var(--text-primary) !important;
}

body.dark-theme .flatpickr-calendar .flatpickr-monthDropdown-months .flatpickr-monthDropdown-month:hover {
    background: var(--bg-tertiary) !important;
}

body.dark-theme .flatpickr-calendar .flatpickr-monthDropdown-months .flatpickr-monthDropdown-month.selected {
    background: var(--bg-button) !important;
    color: var(--text-on-button) !important;
}

/* View Switcher - YouTube Inspired Minimalist Style */
.view-switcher {
    display: flex;
    align-items: center;
    justify-content: safe center;
    gap: 4px;
    flex: 1;
    min-width: 0;
    padding: 0 8px 4px 8px;
    background: transparent;
    border: none;
    white-space: nowrap;
    margin: 0 16px;
    box-shadow: none;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
}

.view-switcher::-webkit-scrollbar {
    height: 4px;
}

.view-switcher::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
}

.view-switcher::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.4);
    border-radius: 2px;
}

.view-switcher::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.6);
}


.vs-separator {
    width: 1px;
    height: 16px;
    background-color: rgba(255, 255, 255, 0.2);
    margin: 0 6px;
    align-self: center;
    flex-shrink: 0;
}

.view-btn {
    background: transparent;
    border: none;
    color: #eee;
    padding: 8px 10px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.1s ease-in-out;
    font-size: 13px;
    font-weight: 500;
    flex-shrink: 0;
    position: relative;
}

.view-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.view-btn.active {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    font-weight: 700;
}

.view-btn.active::after {
    display: none;
}

.view-icon {
    width: 18px;
    height: 12px;
    background-color: transparent;
    border-radius: 1px;
    position: relative;
    border: 1.5px solid rgba(255, 255, 255, 0.7);
    flex-shrink: 0;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.view-btn:hover .view-icon {
    border-color: #fff;
    background-color: rgba(255, 255, 255, 0.1);
}

.view-btn.active .view-icon {
    background-color: #fff;
    border-color: #fff;
}

/* Icons styling */
.view-icon.grid-icon {
    background-image: 
        linear-gradient(rgba(255,255,255,0.7) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.7) 1px, transparent 1px);
    background-size: 6px 12px;
    background-position: center;
}

.view-btn.active .view-icon.grid-icon {
    background-image: 
        linear-gradient(#000 1px, transparent 1px),
        linear-gradient(90deg, #000 1px, transparent 1px);
}

.view-icon.grid4-icon {
    background-image: 
        linear-gradient(rgba(255,255,255,0.7) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.7) 1px, transparent 1px);
    background-size: 9px 12px;
    background-position: center;
}

.view-btn.active .view-icon.grid4-icon {
    background-image: 
        linear-gradient(#000 1px, transparent 1px),
        linear-gradient(90deg, #000 1px, transparent 1px);
}

.view-icon.legacy-icon::after {
    content: '';
    position: absolute;
    right: 1px; bottom: 1px;
    width: 5px; height: 3px;
    background-color: rgba(255,255,255,0.7);
    border: none;
}

.view-btn.active .view-icon.legacy-icon::after {
    background-color: #000;
}

/* Text inside icons */
.view-icon.front-icon::after,
.view-icon.back-icon::after,
.view-icon.left-icon::after,
.view-icon.right-icon::after,
.view-icon.left-pillar-icon::after,
.view-icon.right-pillar-icon::after {
    color: #fff;
    position: absolute; 
    top: 50%; 
    left: 50%; 
    transform: translate(-50%, -50%);
    font-family: Arial, sans-serif;
    line-height: 1;
}

.view-btn.active .view-icon::after {
    color: #000 !important;
    font-weight: 800;
}

.view-icon.front-icon::after { content: 'F'; font-size: 9px; }
.view-icon.back-icon::after { content: 'B'; font-size: 9px; }
.view-icon.left-icon::after { content: 'L'; font-size: 9px; }
.view-icon.right-icon::after { content: 'R'; font-size: 9px; }
.view-icon.left-pillar-icon::after { content: 'LP'; font-size: 7px; }
.view-icon.right-pillar-icon::after { content: 'RP'; font-size: 7px; }

/* Grid View Layout (6-Grid) */
.player-area.grid-view {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
    padding: 60px 20px 120px 20px;
    gap: 10px;
}

/* Grid 4 View (4-Grid) */
.player-area.grid4-view {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    padding: 60px 20px 120px 20px;
    gap: 10px;
}

/* Common Grid Styles */
.player-area.grid-view .video-container,
.player-area.grid4-view .video-container {
    position: relative !important;
    top: auto !important;
    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    width: 100% !important;
    height: 100% !important;
    z-index: 10 !important;
    border-radius: 8px;
    box-shadow: none;
    border: 1px solid var(--border-pip);
    opacity: 1;
    transform: none;
    display: block; /* Ensure visibility */
}

/* Grid Ordering for 6-Grid */
.player-area.grid-view .video-container[data-camera="left_pillar"] { order: 1; }
.player-area.grid-view .video-container[data-camera="front"] { order: 2; }
.player-area.grid-view .video-container[data-camera="right_pillar"] { order: 3; }
.player-area.grid-view .video-container[data-camera="left"] { order: 4; }
.player-area.grid-view .video-container[data-camera="back"] { order: 5; }
.player-area.grid-view .video-container[data-camera="right"] { order: 6; }

/* Grid Ordering for 4-Grid */
.player-area.grid4-view .video-container[data-camera="front"] { order: 1; }
.player-area.grid4-view .video-container[data-camera="back"] { order: 2; }
.player-area.grid4-view .video-container[data-camera="left"] { order: 3; }
.player-area.grid4-view .video-container[data-camera="right"] { order: 4; }

/* Hide Pillars in 4-Grid */
.player-area.grid4-view .video-container[data-camera="left_pillar"],
.player-area.grid4-view .video-container[data-camera="right_pillar"] {
    display: none !important;
}

/* Single View */
.player-area.single-view {
    display: block;
}
.player-area.single-view .video-container {
    display: none !important; /* Hide all by default */
}
.player-area.single-view .video-container.is-active-single {
    display: block !important;
    position: absolute !important;
    top: 0; left: 0; right: 0; bottom: 0;
    width: 100% !important;
    height: 100% !important;
    z-index: 20 !important;
    border: none;
    transform: none;
    opacity: 1;
}
.player-area.single-view .video-container.is-active-single video {
    object-fit: contain;
}

/* Legacy View (PIP) */
.player-area.legacy-view {
    display: block;
}
/* Ensure PIP styles apply in legacy view - relying on existing .is-main / .is-pip styles */
.player-area.legacy-view .video-container.is-main {
    z-index: 1;
    opacity: 1;
    /* Uses default absolute positioning from previous styles */
}
.player-area.legacy-view .video-container.is-pip {
    z-index: 20;
    opacity: 1;
}
.player-area.legacy-view .video-container.hidden {
    opacity: 0;
    pointer-events: none;
}

/* Responsive Grid */
@media (max-width: 768px) {
    .player-area.grid-view {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(3, 1fr);
    }
}
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background-color: var(--border-secondary);
    border-radius: 4px;
    border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-secondary);
}

::-webkit-scrollbar-corner {
    background: transparent;
}

/* Toast Notification */
.toast-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    pointer-events: none;
}

.toast {
    background: rgba(30, 30, 40, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: #fff;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 10px;
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.3s ease;
    pointer-events: auto;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast.success {
    border-left: 3px solid #28a745;
}

.toast.success::before {
    content: '✓';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    border-radius: 50%;
    font-size: 12px;
    font-weight: bold;
}

.toast.error {
    border-left: 3px solid #dc3545;
}

.toast.error::before {
    content: '✕';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #dc3545 0%, #ff6b6b 100%);
    border-radius: 50%;
    font-size: 12px;
    font-weight: bold;
}

.toast.info {
    border-left: 3px solid #667eea;
}

.toast.info::before {
    content: 'ℹ';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    font-size: 12px;
    font-weight: bold;
}