:root {
    --bg-dark: #1e1e1e;
    --bg-darker: #2b2b2b;
    --bg-darkest: #252525;
    --bg-dropdown: rgba(30, 30, 30, 0.40);
    
    --text-light: #cccccc;
    --text-lighter: #dddddd;
    --text-muted: #999999;
    
    --border-dark: #333333;
    --border-darker: #3a3a3a;
    
    --primary-blue: #2563EB;
    --primary-blue-light: rgba(37, 99, 235, 0.15);
    --primary-blue-hover: rgba(37, 99, 235, 0.45);
    
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --shadow-lg: 0 6px 16px rgba(0, 0, 0, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.demo-container {
    max-width: 800px;
    margin: 0 auto;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang TC', 'Microsoft JhengHei', 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-light);
    padding: 20px;
}

.app-container {
    background-color: var(--bg-dark);
    color: var(--text-light);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 4px;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
    height: 520px;
    position: relative;
}

.toolbar {
    display: flex;
    flex-direction: column;
    gap: 4px;
    align-items: stretch;
    margin-bottom: 4px;
    background: var(--bg-darker);
    padding: 6px;
    border-radius: 0;
}

.toolbar-icons {
    display: flex;
    gap: 4px;
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
}

.toolbar-icons button {
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    transition: background 150ms ease;
    cursor: pointer;
}

.toolbar-icons button:hover {
    background: rgba(255, 255, 255, 0.10);
}

.toolbar-icons button .icon {
    width: 20px;
    height: 20px;
    color: var(--text-light);
}

.custom-select {
    position: relative;
    min-width: 50px;
    background: var(--bg-dark);
    border-radius: var(--radius-lg);
    color: var(--text-lighter);
    cursor: pointer;
    user-select: none;
    flex: none;
    width: 100%;
    overflow: visible;
    border: 1px solid var(--border-dark);
}

.custom-select-trigger {
    padding: 8px 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
}

.trigger-label {
    flex: 1 1 auto;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.caret {
    margin-left: 8px;
    opacity: 0.8;
    font-size: 12px;
}

.custom-options {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: auto;
    width: 320px;
    min-width: 100px;
    background: var(--bg-dropdown);
    backdrop-filter: blur(10px) saturate(200%);
    border-radius: var(--radius-md);
    min-height: 200px;
    max-height: 320px;
    overflow-y: auto;
    z-index: 50;
    box-shadow: var(--shadow-lg);
    padding: 6px;
    padding-right: 10px;
    padding-bottom: 10px;
    border: 1px solid var(--border-dark);
    display: none;
    font-size: 12px;
}

.custom-select.open .custom-options {
    display: block;
}

.tag-cloud {
    flex-shrink: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 4px 6px 10px 6px;
    margin-bottom: 6px;
}

.tag {
    background: var(--bg-darker);
    color: var(--text-lighter);
    padding: 4px 10px;
    border-radius: var(--radius-md);
    cursor: pointer;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: background 150ms ease, color 150ms ease;
    font-size: 12px;
    text-decoration: none;
    user-select: none;
}

.tag:hover {
    background: #444;
}

.tag.selected {
    background: var(--primary-blue);
    color: #fff;
}

.new-tag-trigger {
    background: var(--bg-darker);
    color: #757575;
    border: 1px dashed #444;
    padding: 4px 10px;
    border-radius: var(--radius-md);
    font-size: 12px;
    cursor: pointer;
}

.new-tag-trigger:hover {
    background: var(--primary-blue-hover);
    color: #fff;
}

.custom-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: background 120ms ease;
    position: relative;
    cursor: pointer;
}

.custom-option.selected {
    background: var(--primary-blue-light);
}

.custom-option.focused {
    background: rgba(255, 255, 255, 0.10);
}

.drag-handle {
    position: relative;
    width: 5px;
    height: 20px;
    border-radius: 1px;
    flex: 0 0 5px;
    cursor: grab;
}

.option-label {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.main-content {
    display: flex;
    flex-direction: row;
    flex: 1;
    overflow: hidden;
}

.editor-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
    overflow: visible;
    padding-left: 8px;
    flex: 1;
}

.editor {
    flex: 1;
    width: 100%;
    resize: none;
    padding: 12px;
    box-sizing: border-box;
    background: var(--bg-dark);
    color: var(--text-light);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    border: none;
    outline: none;
    overflow-y: auto;
}

.editor::-webkit-scrollbar {
    width: 8px;
}

.editor::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

.editor::-webkit-scrollbar-thumb {
    background: #444;
    border-radius: 4px;
}

.editor::-webkit-scrollbar-thumb:hover {
    background: #555;
}

.editor-bottom-buttons {
    position: absolute;
    bottom: 6px;
    right: 6px;
    z-index: 10;
    display: flex;
    gap: 6px;
    flex-direction: row-reverse;
}

.editor-control-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.25);
    color: rgba(255, 255, 255, 0.50);
    border: none;
    padding: 6px 10px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background 200ms ease, color 200ms ease;
    font-size: 11px;
    text-transform: uppercase;
    white-space: nowrap;
    backdrop-filter: blur(6px) saturate(200%) brightness(1.5);
}

.editor-control-btn:hover {
    background: rgba(0, 0, 0, 0.75);
    color: rgba(255, 255, 255, 1);
}

.editor-control-btn.active {
    background: var(--primary-blue);
    opacity: 0.75;
}

.editor-control-btn > span {
    opacity: 0.5;
    transition: opacity 200ms ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.editor-control-btn:hover > span {
    opacity: 1;
}

/* Syntax Highlighting in Editor */

.timecode {
    color: #ff8e37;
    text-decoration: underline;
    text-decoration-style: solid;
    cursor: pointer;
}

.comp-name {
    color: #37f2ff;
    cursor: pointer;
}

.heading {
    color: #569cd6;
    font-weight: bold;
}

.link {
    color: #4c85ff;
}

.comment {
    color: #608b4e;
}

.codebox {
    color: #4ec9b0;
}

.highlight-text {
    background: #2564eb91;
    padding: 0 2px;
    border-radius: 2px;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    margin: 4px 0;
}

.checkbox-box {
    width: 14px;
    height: 14px;
    border: 1.5px solid var(--text-muted);
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.checkbox-box.checked {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
}

.checkbox-box.checked::after {
    content: '✓';
    color: #fff;
    font-size: 10px;
    line-height: 1;
}

.markdown-checkbox {
    cursor: pointer;
    color: #4ec9b0;
    user-select: none;
    font-family: 'Consolas', 'Monaco', monospace;
}

.markdown-checkbox:hover {
    background: rgba(37, 99, 235, 0.1);
    border-radius: 2px;
}

.color-block {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 2px;
    vertical-align: middle;
    margin-right: 4px;
    border: 1px solid rgba(255,255,255,0.2);
}

/* Tooltip */

.custom-tooltip {
    position: fixed;
    z-index: 10000;
    background: rgba(30, 30, 30, 0.3);
    backdrop-filter: blur(10px) saturate(200%);
    color: #fff;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    line-height: 1.5;
    max-width: 300px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    pointer-events: none;
    animation: tooltip-fade-in 0.2s ease-out;
    white-space: pre-line;
    word-wrap: break-word;
    word-break: break-word;
    overflow-wrap: break-word;
    display: block;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s ease, visibility 0.15s ease;
}

.custom-tooltip.visible {
    opacity: 1;
    visibility: visible;
}

@keyframes tooltip-fade-in {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.custom-tooltip .highlight {
    color: #FFEF6D;
    font-weight: bold;
}

/* Toast */

.toast {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(8px) saturate(200%);
    padding: 20px 40px;
    border-radius: var(--radius-md);
    color: #fff;
    font-size: 0.85rem;
    opacity: 0;
    transition: all 0.3s;
    z-index: 1001;
    border: 1px solid var(--primary-blue);
    pointer-events: none;
    white-space: pre-line;
    word-wrap: break-word;
    max-width: 80%;
    text-align: left;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.custom-options::-webkit-scrollbar {
    width: 8px;
}

.custom-options::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

.custom-options::-webkit-scrollbar-thumb {
    background: #444;
    border-radius: 4px;
}

.custom-options::-webkit-scrollbar-thumb:hover {
    background: #555;
}

.settings-overlay {
    position: absolute;
    z-index: 998;
    inset: 0;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px) saturate(150%);
}

#promptDialog {
    position: absolute;
    z-index: 999;
    inset: 0;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px) saturate(150%);
}

.settings-panel {
    width: 360px;
    max-width: 360px;
    z-index: 999;
    background: var(--bg-dark);
    padding: 0;
    border-radius: 12px;
    color: var(--text-lighter);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.05);
    overflow: hidden;
}

.settings-panel.prompt-dialog {
    display: flex;
    flex-direction: column;
    max-height: 80vh;
    box-sizing: border-box;
}

.settings-panel.prompt-dialog .panel-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.settings-panel.settings-main-panel {
    display: flex;
    flex-direction: column;
    max-height: 50vh;
    box-sizing: border-box;
    position: relative;
}

.settings-panel.settings-main-panel .panel-scroll {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 16px;
    padding-bottom: 70px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    font-size: 12px;
}

.settings-panel .header-tabs {
    display: flex;
    gap: 4px;
    padding: 10px 20px 0;
    background: var(--bg-darkest);
    border-bottom: 1px solid var(--border-dark);
}

.settings-panel .header-tabs button {
    padding: 10px 20px;
    background: transparent;
    color: var(--text-muted-dark);
    border: none;
    cursor: pointer;
    transition: all 200ms ease;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.3px;
}

.settings-panel .header-tabs button:hover {
    color: var(--text-muted-darker);
    background: rgba(255, 255, 255, 0.03);
}

.settings-panel .header-tabs button.active {
    color: #fff;
    background: var(--primary-blue-light);
}

.settings-panel .form-group {
    margin-bottom: 0;
    min-width: 0;
    overflow: visible;
}

.settings-panel .form-group label {
    display: block;
    font-size: 11px;
    margin-bottom: 6px;
    color: var(--text-muted-light);
    font-weight: 500;
    letter-spacing: 0.3px;
}

.settings-panel .form-group input[type="text"],
.settings-panel .form-group input[type="color"],
.settings-panel .form-group select {
    width: 100%;
    padding: 7px 10px;
    background: var(--bg-darker);
    color: var(--text-light);
    border: 1px solid var(--border-darker);
    border-radius: 6px;
    font-size: 12px;
    transition: all 200ms ease;
    box-sizing: border-box;
}

.settings-panel .form-group input[type="text"]:focus,
.settings-panel .form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px var(--primary-blue-light);
}

.settings-panel .form-group input[type="range"] {
    width: 100%;
    padding: 0;
    background: transparent;
    border: none;
    -webkit-appearance: none;
}

.settings-panel .form-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 18px;
    width: 18px;
    border-radius: 50%;
    background: var(--primary-blue);
    cursor: pointer;
    margin-top: -7px;
    border: 2px solid var(--bg-dark);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.settings-panel .form-group input[type="range"]::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    background: var(--border-darker);
    border-radius: 2px;
}

.settings-panel .form-group input[type="color"] {
    height: 44px;
    padding: 4px;
    cursor: pointer;
    border-radius: 6px;
}

.color-input-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

.color-input-row input[type="color"] {
    flex: 0 0 44px;
}

.color-input-row .hex-input {
    flex: 1 1 auto;
}

.color-preview-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

.color-preview-block {
    padding: 10px !important;
}

.reset-color-btn {
    background: var(--bg-darker);
    border: 1px solid var(--border-darker);
    border-radius: 6px;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 200ms ease;
    color: var(--text-light);
}

.reset-color-btn:hover {
    background: var(--bg-button-hover-dark);
    border-color: var(--border-darker);
    color: var(--text-lighter);
}

.toggle-switch-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0;
    padding: 8px 14px;
    background: var(--bg-darkest);
    border-radius: 6px;
    border: 1px solid var(--border-dark);
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 22px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-darker);
    transition: all 300ms ease;
    border-radius: 22px;
    border: 1px solid #444;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 1px;
    background-color: var(--text-lighter);
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.toggle-switch input:checked + .toggle-slider:before {
    background-color: #fff;
    transform: translateX(20px);
}

.settings-panel .button-group {
    margin-top: 0;
    padding: 14px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    background: var(--bg-darkest);
    border-top: 1px solid var(--border-dark);
    flex-wrap: wrap;
}

.settings-panel.settings-main-panel .button-group {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 10;
}

.settings-panel .button-group button {
    padding: 8px 14px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 200ms ease;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
}

.settings-panel .button-group .reset-btn {
    background: var(--bg-darker);
    color: var(--text-lighter);
    border: 1px solid var(--border-darker);
}

.settings-panel .button-group .reset-btn:hover {
    background: #333;
    border-color: #444;
}

.settings-panel .button-group .action-btns {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.settings-panel .button-group .action-btns button:first-child {
    background: var(--primary-blue);
    color: #fff;
    border-color: var(--primary-blue);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.settings-panel .button-group .action-btns button:first-child:hover {
    background: var(--primary-blue-hover);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

.settings-panel .button-group .action-btns button:last-child {
    background: transparent;
    color: var(--text-light);
    border: 1px solid var(--border-dark);
}

.settings-panel .button-group .action-btns button:last-child:hover {
    background: var(--bg-darker);
    border-color: var(--border-darker);
}

.settings-panel .button-group .import-btn,
.settings-panel .button-group .export-btn {
    background: var(--bg-darker);
    color: var(--text-lighter);
    border: 1px solid var(--border-darker);
}

.settings-panel .button-group .import-btn:hover,
.settings-panel .button-group .export-btn:hover {
    background: #333;
    border-color: #444;
}

.settings-panel .action-btn {
    padding: 4px 8px;
    background: var(--bg-darker);
    border-radius: 6px;
    color: var(--text-lighter);
    border: 1px solid var(--border-darker);
    cursor: pointer;
    transition: all 200ms ease;
    font-size: 12px;
    font-weight: 500;
}

.settings-panel .action-btn:hover {
    background: #333;
    border-color: #444;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.settings-panel .action-btn:active {
    transform: translateY(0);
}

.compact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 12px;
    align-items: start;
    overflow: visible;
}

.compact-grid .form-group {
    margin-bottom: 0;
}

.section-title {
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 12px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--primary-blue);
    display: inline-block;
    letter-spacing: 0.5px;
}

.section-divider {
    height: 1px;
    background: var(--border-dark);
    margin: 16px 0;
}

.settings-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.settings-section .form-group {
    margin-top: 0;
}

.settings-section .toggle-switch-row {
    margin-bottom: 8px;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 8px;
}

.toggle-label svg {
    width: 16px;
    height: 16px;
    color: var(--text-light);
}

.note-folder-item {
    border: 1px solid var(--border-dark);
    border-radius: 4px;
    padding: 8px;
    margin-bottom: 8px;
}

.flex-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

.flex-row-wrap {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.flex-row-mt {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-top: 6px;
    flex-wrap: wrap;
}

.icon-button-container {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
}

.icon-small {
    width: 14px;
    height: 14px;
}

.folder-input {
    flex: 1;
}

.project-path-divider {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border-dark);
}

.project-path-container {
    border: 2px solid var(--primary-blue);
    border-radius: 4px;
    padding: 8px;
    margin-bottom: 8px;
    background-color: var(--bg-darkest);
}

.project-path-label {
    margin-bottom: 6px;
    font-size: 12px;
    color: var(--primary-blue);
}

.project-path-input {
    background-color: var(--bg-darkest);
    cursor: not-allowed;
    opacity: 0.7;
}

.waiting-message {
    font-size: 12px;
    color: var(--text-muted-dark);
    font-style: italic;
    margin-top: 8px;
}

.flex-spacer {
    flex: 1;
}

.settings-panel .custom-select {
    width: 100%;
    position: relative;
}

.settings-panel .custom-select .custom-options {
    width: 100%;
    right: 0;
    left: 0;
    position: absolute;
    top: calc(100% + 6px);
    z-index: 1000;
}

.settings-panel .form-group input[type="number"] {
    width: 100%;
    padding: 7px 10px;
    background: var(--bg-darker);
    color: var(--text-light);
    border: 1px solid var(--border-darker);
    border-radius: 6px;
    font-size: 12px;
}
.color-compact {
    pointer-events: none;
}