@font-face { font-family: 'SFKR'; src: url('./fonts/SFKR-Regular.otf') format('opentype'); font-weight: 400; }
@font-face { font-family: 'SFKR'; src: url('./fonts/SFKR-Medium.otf') format('opentype'); font-weight: 500; }
@font-face { font-family: 'SFKR'; src: url('./fonts/SFKR-Bold.otf') format('opentype'); font-weight: 700; }

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

:root {
    --bg-primary: #09090b;
    --bg-secondary: #18181b;
    --bg-card: #1f1f23;
    --bg-hover: rgba(255, 255, 255, 0.06);
    --bg-hover-solid: #212126;
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-active: rgba(255, 255, 255, 0.16);
    --text-primary: #fafafa;
    --text-secondary: rgba(255, 255, 255, 0.64);
    --text-placeholder: rgba(255, 255, 255, 0.32);
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.24);
    --accent-dim: rgba(59, 130, 246, 0.4);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
    --shadow-lg: 0 16px 48px rgba(0,0,0,0.48);
    --grid-color: rgba(255, 255, 255, 0.03);
    --scrollbar: rgba(255, 255, 255, 0.16);
    --danger: #ef4444;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 14px;
    --transition: 0.15s ease;
    --tag-red: #ef4444; --tag-orange: #f97316; --tag-yellow: #eab308;
    --tag-green: #22c55e; --tag-blue: #3b82f6; --tag-purple: #8b5cf6; --tag-pink: #ec4899;
    --conn-default: rgba(255, 255, 255, 0.35);
    --conn-hover: rgba(255, 255, 255, 0.6);
    --bg-thumbnail: #1f1f23;
    --memo-paragraph-spacing-percent: 30;
}

:root.light {
    --bg-primary: #f4f4f5; --bg-secondary: #ffffff; --bg-card: #ffffff;
    --bg-hover: rgba(0, 0, 0, 0.04);
    --bg-hover-solid: #f5f5f5;
    --border-subtle: rgba(0, 0, 0, 0.08); --border-active: rgba(0, 0, 0, 0.16);
    --text-primary: #18181b; --text-secondary: rgba(0, 0, 0, 0.56); --text-placeholder: rgba(0, 0, 0, 0.32);
    --accent: #2563eb; --accent-glow: rgba(37, 99, 235, 0.16); --accent-dim: rgba(37, 99, 235, 0.3);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.08); --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
    --grid-color: rgba(0, 0, 0, 0.04); --scrollbar: rgba(0, 0, 0, 0.16); --danger: #dc2626;
    --conn-default: rgba(0, 0, 0, 0.3);
    --conn-hover: rgba(0, 0, 0, 0.5);
    --bg-thumbnail: #ececee;
}

html, body {
    height: 100%; overflow: hidden;
    font-family: 'SFKR', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary); color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
}
input, textarea, button { font-family: inherit; }

#app { width: 100%; height: 100%; position: relative; overflow: hidden; background: var(--bg-primary); outline: none; cursor: default; }
#app.panning { cursor: grabbing; }
#app.space-pan-mode { cursor: grab; }
#app.space-pan-mode.panning { cursor: grabbing; }
body.is-dragging, body.is-dragging *,
body.is-box-selecting, body.is-box-selecting * { -webkit-user-select: none; user-select: none; }

#canvas { position: absolute; width: 100%; height: 100%; transform-origin: 0 0; }

.grid-overlay {
    position: absolute; inset: -200%; width: 500%; height: 500%;
    background-image: linear-gradient(var(--grid-color) 1px, transparent 1px),
                      linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 48px 48px; pointer-events: none;
}

#connectionsSvg { position: absolute; inset: -10000px; width: 20000px; height: 20000px; pointer-events: none; overflow: visible; }

.connection-hit-area { fill: none; stroke: transparent; stroke-width: 16; pointer-events: stroke; cursor: pointer; }
.connection-line { fill: none; stroke: var(--conn-default); stroke-width: 2; pointer-events: stroke; cursor: pointer; }
.connection-hit-area:hover + .connection-line, .connection-line:hover { stroke: var(--conn-hover); stroke-width: 3; }
.connection-line.selected { stroke: var(--accent); stroke-width: 3; }
.connection-line.temp { stroke: var(--accent-dim); stroke-dasharray: 6 4; opacity: 0.7; }
.connection-line.temp.fading {
    animation: connectionFadeOut 0.15s ease-out forwards;
    pointer-events: none;
}
@keyframes connectionFadeOut {
    0% { opacity: 0.7; stroke-width: 2; filter: blur(0); }
    100% { opacity: 0; stroke-width: 10; filter: blur(4px); }
}

/* Delete fade effects */
.connection-line.deleting, .connection-hit-area.deleting {
    animation: connectionDeleteFade 0.15s ease-out forwards;
    pointer-events: none;
}
.connection-arrow.deleting {
    animation: arrowDeleteFade 0.15s ease-out forwards;
    pointer-events: none;
}
@keyframes connectionDeleteFade {
    0% { opacity: 1; stroke-width: 2; filter: blur(0); }
    100% { opacity: 0; stroke-width: 8; filter: blur(3px); }
}
@keyframes arrowDeleteFade {
    0% { opacity: 1; filter: blur(0); }
    100% { opacity: 0; filter: blur(3px); }
}

/* Color grouping transition fade effects */
.connection-line.color-group-fade-out,
.connection-hit-area.color-group-fade-out {
    animation: colorGroupFadeOut 0.15s ease-out forwards;
    pointer-events: none;
}
.connection-arrow.color-group-fade-out,
.connection-label.color-group-fade-out {
    animation: colorGroupArrowFadeOut 0.15s ease-out forwards;
    pointer-events: none;
}
@keyframes colorGroupFadeOut {
    0% { opacity: 1; }
    100% { opacity: 0; }
}
@keyframes colorGroupArrowFadeOut {
    0% { opacity: 1; }
    100% { opacity: 0; }
}

.connection-line.color-group-hidden,
.connection-hit-area.color-group-hidden,
.connection-arrow.color-group-hidden,
.connection-label.color-group-hidden {
    opacity: 0;
    pointer-events: none;
}

.connection-line.color-group-fade-in,
.connection-hit-area.color-group-fade-in {
    animation: colorGroupFadeIn 0.25s ease-out forwards;
}
.connection-arrow.color-group-fade-in,
.connection-label.color-group-fade-in {
    animation: colorGroupArrowFadeIn 0.25s ease-out forwards;
}
@keyframes colorGroupFadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}
@keyframes colorGroupArrowFadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

.canvas-item.deleting {
    animation: itemDeleteFade 0.15s ease-out forwards;
    pointer-events: none;
}
@keyframes itemDeleteFade {
    0% { opacity: 1; transform: scale(1); filter: blur(0); }
    100% { opacity: 0; transform: scale(0.95); filter: blur(4px); }
}

.connection-arrow { fill: var(--conn-default); pointer-events: none; }
.connection-arrow.selected { fill: var(--accent); }

/* Filtered-out connections */
.connection-line.filtered-out,
.connection-arrow.filtered-out,
.connection-label.filtered-out { opacity: 0.15; pointer-events: none; }

/* Connection Labels */
.connection-label { pointer-events: auto; cursor: pointer; }
.connection-label-bg {
    fill: #1f1f23;
    stroke: var(--connection-label-accent, var(--conn-default));
    stroke-width: 2;
}
:root.light .connection-label-bg {
    fill: #ffffff;
}
.connection-label-text {
    fill: var(--text-primary);
    font-size: 11px;
    font-weight: 500;
    font-family: 'SFKR', -apple-system, BlinkMacSystemFont, sans-serif;
    dominant-baseline: central;
}
.connection-label.selected .connection-label-bg {
    stroke: var(--accent);
    stroke-width: 2.5;
}
.connection-label.deleting {
    animation: labelDeleteFade 0.15s ease-out forwards;
    pointer-events: none;
}
@keyframes labelDeleteFade {
    0% { opacity: 1; }
    100% { opacity: 0; }
}

#selectionBox { position: fixed; border: 1.5px solid var(--accent); background: var(--accent-glow); display: none; pointer-events: none; z-index: 9999; border-radius: 4px; }

.canvas-item {
    position: absolute; background: var(--bg-card); border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-md);
    cursor: move; min-width: 140px; min-height: 80px; overflow: visible;
    -webkit-user-select: none; user-select: none;
    --control-btn-step: calc(28px * var(--counter-scale, 1));
    --child-btn-offset: calc(32px + ((var(--counter-scale, 1) - 1) * 22px));
    --child-btn-offset-wide: calc(36px + ((var(--counter-scale, 1) - 1) * 22px));
}
.canvas-item .color-dot {
    display: none;
}
/* Color tag - thin bar design clipped to node outline */
.canvas-item.has-color .item-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--tag-color);
    z-index: 5;
    pointer-events: none;
}
.canvas-item:hover { border-color: var(--border-active); box-shadow: var(--shadow-lg); }
.canvas-item.selected { outline: 2px solid var(--accent); outline-offset: -1px; box-shadow: var(--shadow-lg), 0 0 0 3px var(--accent-glow); }
.canvas-item.dragging { opacity: 0.9; }
.canvas-item.color-group-animating {
    transition: left 0.4s cubic-bezier(0.32, 0.72, 0, 1),
                top 0.4s cubic-bezier(0.32, 0.72, 0, 1);
}
.canvas-item.connect-target { border-color: var(--accent); }
.canvas-item.filtered-out { opacity: 0.15; pointer-events: none; }
.connection-hit-area.filtered-out,
.connection-line.filtered-out,
.connection-arrow.filtered-out,
.connection-label.filtered-out { opacity: 0.15; pointer-events: none; }
.canvas-item.locked { opacity: 0.7; }
.canvas-item.search-highlight { box-shadow: var(--shadow-lg), 0 0 0 4px var(--tag-yellow); }
.canvas-item.new { animation: appear 0.2s ease-out; }
@keyframes appear { from { opacity: 0; transform: scale(0.96); } }

.item-content { width: 100%; height: 100%; overflow: hidden; border-radius: calc(var(--radius-md) - 1px); position: relative; }

.canvas-item .delete-btn, .canvas-item .color-btn, .canvas-item .font-size-btn {
    position: absolute; top: -10px; width: 24px; height: 24px; border-radius: 50%;
    background: var(--bg-secondary); border: 1px solid var(--border-subtle);
    color: var(--text-secondary); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    opacity: 1; visibility: hidden; pointer-events: none; transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), visibility 0s linear var(--transition); font-size: 14px; z-index: 10;
    transform: scale(var(--counter-scale, 1));
    transform-origin: top right;
}
.canvas-item .delete-btn { right: -10px; }
.canvas-item .font-size-btn { right: calc(-10px + var(--control-btn-step)); }
.canvas-item .color-btn { right: calc(-10px + (var(--control-btn-step) * 2)); }
.canvas-item.no-font-btn .color-btn { right: calc(-10px + var(--control-btn-step)); }
.canvas-item:hover .delete-btn, .canvas-item:hover .color-btn, .canvas-item:hover .font-size-btn,
.canvas-item .delete-btn:hover, .canvas-item .color-btn:hover, .canvas-item .font-size-btn:hover {
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
}
.canvas-item .delete-btn:hover { background: var(--danger); color: white; border-color: var(--danger); }
.canvas-item .color-btn:hover, .canvas-item .font-size-btn:hover { background: var(--bg-hover-solid); color: var(--text-primary); border-color: var(--border-active); }

.color-picker {
    position: absolute; top: -50px; left: 50%; transform: translateX(-50%) scale(var(--counter-scale-soft, 1));
    transform-origin: center bottom;
    background: var(--bg-secondary); border: 1px solid var(--border-subtle);
    border-radius: 9999px; padding: 8px 12px;
    display: none; gap: 6px;
    box-shadow: var(--shadow-md); z-index: 100;
}
.color-picker.active { display: flex; }
.color-picker .color-opt { width: 22px; height: 22px; border-radius: 50%; cursor: pointer; border: 2px solid transparent; flex-shrink: 0; }
.color-picker .color-opt:hover { transform: scale(1.15); }
.color-picker .color-opt.selected { border-color: var(--text-primary); }
.color-picker .color-opt.none { background: var(--bg-card); border: 2px dashed var(--border-active); }

.canvas-item .resize-handle {
    position: absolute; bottom: 0; right: 0; width: 18px; height: 18px;
    cursor: nwse-resize; opacity: 0; z-index: 10;
    transform: scale(var(--counter-scale, 1));
    transform-origin: bottom right;
}
.canvas-item:hover .resize-handle { opacity: 0.6; }
.resize-handle::before {
    content: ''; position: absolute; bottom: 4px; right: 4px;
    width: 10px; height: 10px;
    border-right: 2px solid var(--text-secondary);
    border-bottom: 2px solid var(--text-secondary);
    border-radius: 0 0 3px 0;
}

.connection-handle {
    position: absolute; width: 14px; height: 14px;
    background: var(--accent); border: 2px solid var(--bg-card);
    border-radius: 50%; cursor: crosshair; opacity: 0; z-index: 20;
    transform: scale(var(--counter-scale, 1));
}
.connection-handle::before {
    content: ''; position: absolute;
    top: -6px; left: -6px; right: -6px; bottom: -6px;
    border-radius: 50%;
}
#canvas.connecting .connection-handle::before {
    top: -20px; left: -20px; right: -20px; bottom: -20px;
}
.canvas-item:hover .connection-handle { opacity: 1; }
.connection-handle:hover { transform: scale(calc(var(--counter-scale, 1) * 1.4)); }
.connection-handle.top { top: -7px; left: 50%; margin-left: -7px; }
.connection-handle.bottom { bottom: -7px; left: 50%; margin-left: -7px; }
.connection-handle.left { left: -7px; top: 50%; margin-top: -7px; }
.connection-handle.right { right: -7px; top: 50%; margin-top: -7px; }

.add-child-btn {
    position: absolute; width: 24px; height: 24px;
    background: var(--accent); border: 2px solid var(--bg-card);
    border-radius: 50%; cursor: pointer; opacity: 0; z-index: 20;
    display: flex; align-items: center; justify-content: center;
    color: white; font-size: 14px; font-weight: 600;
    transform: scale(var(--counter-scale, 1));
}
.canvas-item:hover .add-child-btn { opacity: 1; }
.add-child-btn:hover { transform: scale(calc(var(--counter-scale, 1) * 1.2)); }
.add-child-btn.top { top: calc(-1 * var(--child-btn-offset)); left: 50%; margin-left: -12px; }
.add-child-btn.bottom { bottom: calc(-1 * var(--child-btn-offset)); left: 50%; margin-left: -12px; }
.add-child-btn.left { left: calc(-1 * var(--child-btn-offset)); top: 50%; margin-top: -12px; }
.add-child-btn.right { right: calc(-1 * var(--child-btn-offset)); top: 50%; margin-top: -12px; }

#canvas.connecting .add-child-btn { display: none !important; }

.item-image { width: 100%; height: 100%; object-fit: cover; display: block; pointer-events: none; border-radius: calc(var(--radius-md) - 1px); }

/* Video container and custom controls */
.video-container { width: 100%; height: 100%; position: relative; background: #000; border-radius: calc(var(--radius-md) - 1px); overflow: hidden; }
.item-video { width: 100%; height: 100%; object-fit: contain; display: block; pointer-events: none; }
.video-controls {
    position: absolute; bottom: 0; left: 0; right: 0;
    display: flex; align-items: center; gap: 8px;
    padding: 8px 10px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    opacity: 0; transition: opacity 0.2s ease;
}
.video-container:hover .video-controls,
.canvas-item[data-item-type="video"]:hover .video-controls { opacity: 1; }
.video-container.video-playing .video-controls { opacity: 0; }
.video-container.video-playing:hover .video-controls { opacity: 1; }

.video-play-btn, .video-mute-btn, .video-fullscreen-btn {
    width: 28px; height: 28px;
    background: rgba(255,255,255,0.15); border: none; border-radius: 6px;
    color: white; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.15s ease; flex-shrink: 0;
}
.video-play-btn:hover, .video-mute-btn:hover, .video-fullscreen-btn:hover { background: rgba(255,255,255,0.3); }

.video-play-btn .pause-icon { display: none; }
.video-container.video-playing .video-play-btn .play-icon { display: none; }
.video-container.video-playing .video-play-btn .pause-icon { display: block; }

.video-mute-btn .muted-icon { display: none; }
.video-container.video-muted .video-mute-btn .volume-icon { display: none; }
.video-container.video-muted .video-mute-btn .muted-icon { display: block; }

.video-progress-container { flex: 1; height: 28px; display: flex; align-items: center; cursor: pointer; }
.video-progress { width: 100%; height: 4px; background: rgba(255,255,255,0.3); border-radius: 2px; position: relative; }
.video-progress-filled { height: 100%; background: var(--accent); border-radius: 2px; width: 0%; transition: width 0.1s linear; }
.video-progress-container:hover .video-progress { height: 6px; }

.video-time { font-size: 11px; color: rgba(255,255,255,0.9); font-variant-numeric: tabular-nums; min-width: 36px; text-align: center; }

/* Video fullscreen mode */
.video-container:fullscreen { width: 100%; height: 100%; border-radius: 0; }
.video-container:fullscreen .video-controls { padding: 12px 16px; }
.video-container:fullscreen .video-play-btn,
.video-container:fullscreen .video-mute-btn,
.video-container:fullscreen .video-fullscreen-btn { width: 36px; height: 36px; }
.video-container:fullscreen .video-time { font-size: 13px; min-width: 48px; }

/* Media loading states */
.canvas-item.media-loading .item-content { position: relative; }
.canvas-item.media-loading .item-content::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--bg-secondary);
    border-radius: calc(var(--radius-md) - 1px);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: mediaPulse 1.5s ease-in-out infinite;
}
@keyframes mediaPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}
.canvas-item.media-load-failed .item-content { position: relative; }
.canvas-item.media-load-failed .item-image,
.canvas-item.media-load-failed .item-video { opacity: 0; }
.canvas-item.media-load-failed .item-content::after {
    content: '⚠️';
    position: absolute;
    inset: 0;
    background: var(--bg-secondary);
    border-radius: calc(var(--radius-md) - 1px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--text-secondary);
}

.item-memo { padding: 12px; height: 100%; display: flex; flex-direction: column; position: relative; box-sizing: border-box; }
.memo-body { flex: 1; font-size: 13px; line-height: 1.6; color: var(--text-primary); border: none; background: transparent; outline: none; resize: none; width: 100%; overflow-y: auto; min-height: 40px; cursor: text; word-wrap: break-word; overflow-wrap: break-word; word-break: keep-all; -webkit-user-select: text; user-select: text; }
.memo-body:empty::before { content: attr(data-placeholder); color: var(--text-placeholder); pointer-events: none; }
.memo-body::-webkit-scrollbar { width: 4px; }
.memo-body::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 2px; }

/* Markdown rendered styles */
.memo-body h1 { font-size: 1.4em; font-weight: 700; margin: 0.3em 0; color: var(--text-primary); }
.memo-body h2 { font-size: 1.2em; font-weight: 600; margin: 0.3em 0; color: var(--text-primary); }
.memo-body h3 { font-size: 1.1em; font-weight: 600; margin: 0.2em 0; color: var(--text-primary); }
.memo-body strong { font-weight: 600; }
.memo-body del { text-decoration: line-through; opacity: 0.7; }
.memo-body u { text-decoration: underline; }
.memo-body blockquote { border-left: 3px solid var(--accent); padding-left: 10px; margin: 0.3em 0; color: var(--text-secondary); font-style: italic; }
.memo-body hr { border: none; border-top: 1px solid var(--border-subtle); margin: 0.5em 0; }
.memo-body ul, .memo-body ol { margin: 0.3em 0; padding-left: 1.2em; }
.memo-body li { margin: 0.1em 0; }
.memo-body > :is(h1, h2, h3, blockquote, div[data-knotpad-paragraph="true"]) + div[data-knotpad-paragraph="true"] { margin-top: calc(1em * var(--memo-paragraph-spacing-percent) / 100); }

/* Markdown toolbar - floating selection-based */
.memo-toolbar { display: flex; gap: 4px; padding: 6px 10px; position: fixed; opacity: 0; visibility: hidden; pointer-events: none; transition: opacity 0.1s, visibility 0.1s; background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); z-index: 10000; transform: scale(var(--counter-scale-soft, 1)); transform-origin: top left; }
.memo-toolbar.active { opacity: 1; visibility: visible; pointer-events: auto; }
.md-btn { width: 28px; height: 28px; border: none; background: var(--bg-hover); border-radius: var(--radius-sm); color: var(--text-secondary); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.15s; }
.md-btn svg { transform: scale(0.8); }
.md-btn:hover { background: var(--accent-glow); color: var(--accent); }
.md-btn:active { transform: scale(0.95); }
.memo-toolbar .toolbar-sep { width: 1px; height: 20px; background: var(--border-subtle); margin: 4px 4px; flex-shrink: 0; }

/* Font size variants */
.canvas-item.font-size-medium .memo-body { font-size: 15px; }
.canvas-item.font-size-large .memo-body { font-size: 18px; }
.canvas-item.font-size-xlarge .memo-body { font-size: 22px; }

/* Text alignment variants */
.canvas-item.text-align-center .memo-body { text-align: center; }
.canvas-item.text-align-right .memo-body { text-align: right; }

/* Global word wrap mode - applied via body class */
body.wrap-mode-character .memo-body { word-break: break-all; }

/* Keyword Node Styles (pill-shaped concept node) */
.canvas-item.keyword-node {
    border-radius: 9999px;
    min-width: 185px;
    min-height: 56px;
}
.canvas-item.keyword-node .item-content {
    border-radius: 9999px;
    position: relative;
}
/* Keyword node: color bar inherits from base .canvas-item.has-color .item-content::before */
.item-keyword {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 10px 36px;
    direction: rtl; /* Makes overflow clip from left */
}
.keyword-body {
    font-size: 24px;
    font-weight: 500;
    line-height: 1.2;
    color: var(--text-primary);
    border: none;
    background: transparent;
    outline: none;
    width: 100%;
    text-align: center;
    cursor: text;
    white-space: nowrap;
    overflow: hidden;
    direction: ltr; /* Keeps cursor position correct within the text */
    /* Fade out effect on left edge instead of ellipsis */
    -webkit-mask-image: linear-gradient(to right, transparent, black 24px, black);
    mask-image: linear-gradient(to right, transparent, black 24px, black);
    -webkit-user-select: text;
    user-select: text;
}
.keyword-body:empty::before {
    content: attr(data-placeholder);
    color: var(--text-placeholder);
    pointer-events: none;
}
/* Keyword node: connection handles use default edge positions (no override) */
/* This ensures getHandlePos() calculation matches visual handle positions */
/* Keyword node: child buttons further outside to avoid overlap with handles */
.canvas-item.keyword-node .add-child-btn.left { left: calc(-1 * var(--child-btn-offset-wide)); }
.canvas-item.keyword-node .add-child-btn.right { right: calc(-1 * var(--child-btn-offset-wide)); }
/* Keyword node: buttons at top */
.canvas-item.keyword-node .color-btn {
    right: calc(-8px + var(--control-btn-step));
    top: -10px;
    transform: scale(var(--counter-scale, 1));
}
.canvas-item.keyword-node .delete-btn {
    right: -8px;
    top: -10px;
}
/* Keyword node: resize handle - arc segment following pill outline curvature */
.canvas-item.keyword-node .resize-handle {
    position: absolute;
    bottom: 4px;
    right: 4px;
    width: 18px;
    height: 18px;
    cursor: nwse-resize;
    background: transparent;
    overflow: hidden;
    transform: scale(var(--counter-scale, 1));
    transform-origin: bottom right;
}
/* Arc segment: large circle clipped to show only the curve matching pill outline */
.canvas-item.keyword-node .resize-handle::before {
    content: '';
    position: absolute;
    /* Circle sized to match pill node's curvature (min-height 56px = ~28px radius) */
    width: 44px;
    height: 44px;
    /* Position circle center to top-left, so visible arc curves outward like pill outline */
    top: -28px;
    left: -28px;
    border: 2px solid var(--text-secondary);
    border-radius: 50%;
    background: transparent;
    box-sizing: border-box;
}

/* Color Fill Mode - applies background color to item instead of top bar */
/* Only for memo, keyword, link items (via data-item-type attribute) */
body.color-mode-fill .canvas-item.has-color[data-item-type="memo"] .item-content::before,
body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"] .item-content::before,
body.color-mode-fill .canvas-item.has-color[data-item-type="link"] .item-content::before {
    display: none;
}

/* Dark theme fill colors - solid muted tones (no transparency) */
body.color-mode-fill .canvas-item.has-color[data-item-type="memo"][data-color="red"],
body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"][data-color="red"],
body.color-mode-fill .canvas-item.has-color[data-item-type="link"][data-color="red"] { background-color: #3e2528; }

body.color-mode-fill .canvas-item.has-color[data-item-type="memo"][data-color="orange"],
body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"][data-color="orange"],
body.color-mode-fill .canvas-item.has-color[data-item-type="link"][data-color="orange"] { background-color: #402c21; }

body.color-mode-fill .canvas-item.has-color[data-item-type="memo"][data-color="yellow"],
body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"][data-color="yellow"],
body.color-mode-fill .canvas-item.has-color[data-item-type="link"][data-color="yellow"] { background-color: #373120; }

body.color-mode-fill .canvas-item.has-color[data-item-type="memo"][data-color="green"],
body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"][data-color="green"],
body.color-mode-fill .canvas-item.has-color[data-item-type="link"][data-color="green"] { background-color: #1f332a; }

body.color-mode-fill .canvas-item.has-color[data-item-type="memo"][data-color="blue"],
body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"][data-color="blue"],
body.color-mode-fill .canvas-item.has-color[data-item-type="link"][data-color="blue"] { background-color: #232e43; }

body.color-mode-fill .canvas-item.has-color[data-item-type="memo"][data-color="purple"],
body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"][data-color="purple"],
body.color-mode-fill .canvas-item.has-color[data-item-type="link"][data-color="purple"] { background-color: #2f2843; }

body.color-mode-fill .canvas-item.has-color[data-item-type="memo"][data-color="pink"],
body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"][data-color="pink"],
body.color-mode-fill .canvas-item.has-color[data-item-type="link"][data-color="pink"] { background-color: #3e2535; }

/* Light theme fill colors - solid pastel tones (no transparency) */
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="memo"][data-color="red"],
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"][data-color="red"],
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="link"][data-color="red"] { background-color: #fde9e9; }

:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="memo"][data-color="orange"],
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"][data-color="orange"],
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="link"][data-color="orange"] { background-color: #feeee3; }

:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="memo"][data-color="yellow"],
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"][data-color="yellow"],
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="link"][data-color="yellow"] { background-color: #fdf7e6; }

:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="memo"][data-color="green"],
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"][data-color="green"],
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="link"][data-color="green"] { background-color: #e9f9ef; }

:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="memo"][data-color="blue"],
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"][data-color="blue"],
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="link"][data-color="blue"] { background-color: #e7f0fe; }

:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="memo"][data-color="purple"],
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"][data-color="purple"],
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="link"][data-color="purple"] { background-color: #f1ebfe; }

:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="memo"][data-color="pink"],
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="keyword"][data-color="pink"],
:root.light body.color-mode-fill .canvas-item.has-color[data-item-type="link"][data-color="pink"] { background-color: #fde9f3; }

/* Connection label pills follow node fill colors when fill mode is active */
body.color-mode-fill .connection-label[data-color="red"] .connection-label-bg { fill: #3e2528; stroke: #3e2528; }
body.color-mode-fill .connection-label[data-color="orange"] .connection-label-bg { fill: #402c21; stroke: #402c21; }
body.color-mode-fill .connection-label[data-color="yellow"] .connection-label-bg { fill: #373120; stroke: #373120; }
body.color-mode-fill .connection-label[data-color="green"] .connection-label-bg { fill: #1f332a; stroke: #1f332a; }
body.color-mode-fill .connection-label[data-color="blue"] .connection-label-bg { fill: #232e43; stroke: #232e43; }
body.color-mode-fill .connection-label[data-color="purple"] .connection-label-bg { fill: #2f2843; stroke: #2f2843; }
body.color-mode-fill .connection-label[data-color="pink"] .connection-label-bg { fill: #3e2535; stroke: #3e2535; }

:root.light body.color-mode-fill .connection-label[data-color="red"] .connection-label-bg { fill: #fde9e9; stroke: #fde9e9; }
:root.light body.color-mode-fill .connection-label[data-color="orange"] .connection-label-bg { fill: #feeee3; stroke: #feeee3; }
:root.light body.color-mode-fill .connection-label[data-color="yellow"] .connection-label-bg { fill: #fdf7e6; stroke: #fdf7e6; }
:root.light body.color-mode-fill .connection-label[data-color="green"] .connection-label-bg { fill: #e9f9ef; stroke: #e9f9ef; }
:root.light body.color-mode-fill .connection-label[data-color="blue"] .connection-label-bg { fill: #e7f0fe; stroke: #e7f0fe; }
:root.light body.color-mode-fill .connection-label[data-color="purple"] .connection-label-bg { fill: #f1ebfe; stroke: #f1ebfe; }
:root.light body.color-mode-fill .connection-label[data-color="pink"] .connection-label-bg { fill: #fde9f3; stroke: #fde9f3; }

body.color-mode-fill .connection-label.selected .connection-label-bg {
    stroke: var(--accent);
    stroke-width: 2.5;
}

.item-link { padding: 16px; display: flex; flex-direction: column; gap: 10px; height: 100%; cursor: pointer; box-sizing: border-box; }
.link-favicon { width: 28px; height: 28px; border-radius: 6px; background: var(--bg-hover); flex-shrink: 0; }
.link-title { font-size: 14px; font-weight: 500; color: var(--text-primary); line-height: 1.3; word-break: break-word; }
.link-title.editing {
    outline: none;
    background: var(--bg-hover);
    padding: 2px 6px;
    margin: -2px -6px;
    border-radius: 4px;
    cursor: text;
}
/* Prevent link navigation while editing title */
.item-link.editing-mode { cursor: default; }
.item-link.editing-mode .link-url,
.item-link.editing-mode .link-favicon,
.item-link.editing-mode .link-preview-img { pointer-events: none; }
.link-url { font-size: 12px; color: var(--text-secondary); text-decoration: none; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; line-height: 1.4; flex-shrink: 0; }
.link-url:hover { color: var(--accent); }

/* Link Preview Image - 3:2 aspect ratio like browser tab hover */
.link-preview-img {
    width: 100%;
    aspect-ratio: 3 / 2;
    object-fit: cover;
    border-radius: 6px;
    background: var(--bg-hover);
    flex-shrink: 0;
    margin-top: auto;
}
.link-preview-enabled .item-link { gap: 6px; padding: 14px; }
/* Keep favicon and title at top, preview at bottom */
.link-preview-enabled .link-favicon { order: 1; }
.link-preview-enabled .link-title { order: 2; }
.link-preview-enabled .link-url { order: 3; }
.link-preview-enabled .link-preview-img { order: 4; }

.drop-overlay {
    position: fixed; inset: 0; background: rgba(9, 9, 11, 0.92);
    display: none; align-items: center; justify-content: center;
    z-index: 9999; backdrop-filter: blur(8px);
}
:root.light .drop-overlay { background: rgba(244, 244, 245, 0.92); }
.drop-overlay.active { display: flex; }
.drop-content { text-align: center; padding: 48px 64px; border: 2px dashed var(--accent); border-radius: var(--radius-lg); background: var(--accent-glow); }
.drop-content svg { width: 48px; height: 48px; margin-bottom: 16px; color: var(--accent); }
.drop-content h3 { font-size: 20px; font-weight: 500; margin-bottom: 4px; }
.drop-content p { font-size: 13px; color: var(--text-secondary); }

.toolbar {
    position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
    display: flex; gap: 4px; padding: 8px;
    background: var(--bg-secondary); border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle); box-shadow: var(--shadow-lg); z-index: 100;
}
.toolbar-btn {
    width: 40px; height: 40px; border-radius: var(--radius-sm);
    border: none; background: transparent; color: var(--text-secondary);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
}
.toolbar-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.toolbar-btn.active { background: var(--accent); color: white; }
.toolbar-btn.disabled { opacity: 0.35; pointer-events: none; cursor: default; }
.toolbar-btn.filter-active { box-shadow: inset 0 0 0 2px var(--accent); }
.toolbar-sep { width: 1px; background: var(--border-subtle); margin: 6px 4px; }
.zoom-display { display: flex; align-items: center; padding: 0 8px; font-size: 12px; font-weight: 500; color: var(--text-secondary); min-width: 52px; justify-content: center; }

.filter-dropdown, .color-dropdown {
    position: fixed; bottom: 76px; left: 50%; transform: translateX(-50%);
    background: var(--bg-secondary); border: 1px solid var(--border-subtle);
    border-radius: 9999px; padding: 10px 14px;
    display: none; gap: 6px; box-shadow: var(--shadow-md); z-index: 101;
}
.filter-dropdown.active, .color-dropdown.active { display: flex; }
.filter-dropdown .filter-opt, .color-dropdown .color-opt {
    width: 24px; height: 24px; border-radius: 50%; cursor: pointer; border: 2px solid transparent;
}
.filter-dropdown .filter-opt:hover, .color-dropdown .color-opt:hover { transform: scale(1.15); }
.filter-dropdown .filter-opt.selected, .color-dropdown .color-opt.selected { border-color: var(--text-primary); }
.filter-dropdown .filter-opt.all { background: transparent; position: relative; overflow: hidden; }
.filter-dropdown .filter-opt.all::before {
    content: ''; position: absolute; inset: 0; border-radius: 50%;
    background: conic-gradient(var(--tag-red), var(--tag-orange), var(--tag-yellow), var(--tag-green), var(--tag-blue), var(--tag-purple), var(--tag-pink), var(--tag-red));
}
.filter-dropdown .filter-opt.none { background: var(--bg-card); border: 2px dashed var(--border-active); }
.color-dropdown .color-opt.none { background: var(--bg-card); border: 2px dashed var(--border-active); }

.conn-direction-picker {
    position: fixed; background: var(--bg-secondary);
    border: 1px solid var(--border-subtle); border-radius: var(--radius-sm);
    padding: 4px; display: none; gap: 4px; box-shadow: var(--shadow-lg); z-index: 200;
    align-items: center;
}
.conn-direction-picker.active { display: flex; }
.conn-direction-picker button {
    width: 32px; height: 32px; border: none; background: var(--bg-card);
    color: var(--text-primary); border-radius: 4px; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.conn-direction-picker button:hover { background: var(--accent); color: white; }
.conn-direction-picker button.active { background: var(--accent); color: white; }
.conn-direction-picker .conn-delete-btn { background: var(--danger); color: white; }
.conn-direction-picker .conn-delete-btn:hover { background: #dc2626; }
.conn-direction-picker .picker-sep { width: 1px; height: 20px; background: var(--border-subtle); flex-shrink: 0; }
.conn-label-btn {
    font-size: 13px;
    font-weight: 600;
    min-width: 36px;
}
.conn-label-btn.has-label {
    background: var(--accent);
    color: white;
}

/* Connection Label Modal */
.conn-label-modal {
    position: fixed;
    inset: 0;
    background: rgba(9, 9, 11, 0);
    display: none;
    z-index: 10001;
    transition: background 0.2s ease, backdrop-filter 0.2s ease;
}
:root.light .conn-label-modal { background: rgba(0, 0, 0, 0); }
.conn-label-modal.active { display: block; }
.conn-label-modal.active.animate-in {
    background: rgba(9, 9, 11, 0.6);
    backdrop-filter: blur(2px);
}
:root.light .conn-label-modal.active.animate-in { background: rgba(0, 0, 0, 0.3); }
.conn-label-modal-box {
    position: absolute;
    background: var(--bg-secondary);
    transform-origin: top left;
    transition: transform 0.25s cubic-bezier(0.32, 0.72, 0, 1),
                width 0.25s cubic-bezier(0.32, 0.72, 0, 1),
                opacity 0.15s ease;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 16px;
    width: 280px;
    box-shadow: var(--shadow-lg);
}
.conn-label-modal-input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
}
.conn-label-modal-input:focus { border-color: var(--accent); }
.conn-label-modal-input::placeholder { color: var(--text-placeholder); }
.conn-label-modal-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 12px;
}
.conn-label-modal-btn {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    border: none;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
}
.conn-label-modal-btn.cancel {
    background: transparent;
    color: var(--text-secondary);
}
.conn-label-modal-btn.cancel:hover { color: var(--text-primary); }
.conn-label-modal-btn.confirm {
    background: var(--accent);
    color: white;
}
.conn-label-modal-btn.confirm:hover { filter: brightness(1.1); }

.context-menu {
    position: fixed; background: var(--bg-secondary);
    border: 1px solid var(--border-subtle); border-radius: var(--radius-md);
    padding: 4px; box-shadow: var(--shadow-lg); z-index: 10000; min-width: 160px; display: none;
}
.context-menu.active { display: block; }
.context-menu-item {
    padding: 8px 12px; border-radius: var(--radius-sm); cursor: pointer;
    font-size: 13px; color: var(--text-primary);
    display: flex; align-items: center; gap: 8px;
}
.context-menu-item:hover { background: var(--bg-hover); }
.context-menu-item.danger { color: var(--danger); }
.context-menu-sep { height: 1px; background: var(--border-subtle); margin: 4px 0; }
.context-menu-check { margin-left: auto; width: 16px; height: 16px; display: flex; align-items: center; justify-content: center; }
.context-menu-check.checked::before { content: '✓'; color: var(--accent); font-weight: 600; font-size: 12px; }

/* Context menu submenu styles */
.context-menu-item.has-submenu { position: relative; }
.context-menu-item.has-submenu > span { flex: 1; }
.context-menu-item .submenu-arrow { margin-left: auto; opacity: 0.5; }
.context-submenu {
    display: none;
    padding: 4px 0 4px 0;
    margin: 0 4px;
    border-top: 1px solid var(--border-subtle);
    max-height: 200px;
    overflow-y: auto;
}
.context-submenu.active { display: block; }
.context-submenu-item {
    padding: 8px 12px 8px 28px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.context-submenu-item:hover { background: var(--bg-hover); }
.context-submenu-item.new-group {
    color: var(--accent);
    border-top: 1px solid var(--border-subtle);
    margin-top: 4px;
    padding-top: 12px;
}
.context-submenu-item svg { flex-shrink: 0; }
.context-submenu-empty {
    padding: 8px 12px 8px 28px;
    font-size: 12px;
    color: var(--text-placeholder);
    font-style: italic;
}

.modal {
    position: fixed; inset: 0; background: rgba(9, 9, 11, 0.88);
    display: none; align-items: center; justify-content: center;
    z-index: 9999; backdrop-filter: blur(4px);
}
:root.light .modal { background: rgba(0, 0, 0, 0.48); }
.modal.active { display: flex; }
.modal-box {
    background: var(--bg-secondary); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg); padding: 24px;
    width: 90%; max-width: 400px; box-shadow: var(--shadow-lg);
}
.modal-box h3 { font-size: 18px; font-weight: 600; margin-bottom: 20px; }
.modal-input {
    width: 100%; padding: 12px 14px;
    background: var(--bg-card); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm); color: var(--text-primary);
    font-size: 14px; margin-bottom: 12px;
}
.modal-input:focus { outline: none; border-color: var(--accent); }
.modal-input::placeholder { color: var(--text-placeholder); }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 4px; }
.modal-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 18px; border-radius: var(--radius-sm); border: none; font-size: 13px; font-weight: 500; cursor: pointer; }
.modal-btn-cancel { background: transparent; color: var(--text-secondary); }
.modal-btn-cancel:hover { color: var(--text-primary); }
.modal-btn-submit { background: var(--accent); color: white; }
.modal-btn-submit:hover { filter: brightness(1.1); }

.link-modal-error {
    font-size: 12px;
    color: var(--danger, #ef4444);
    min-height: 18px;
    margin-top: -4px;
    opacity: 0;
    transition: opacity 0.2s ease;
}
.link-modal-error.visible {
    opacity: 1;
}

.search-bar {
    position: fixed; top: 80px; left: 50%;
    background: var(--bg-secondary); border: 1px solid var(--border-subtle);
    border-radius: 9999px; padding: 10px 10px 10px 16px;
    display: flex; align-items: center; gap: 12px;
    box-shadow: var(--shadow-lg); z-index: 150; min-width: 340px;
    opacity: 0; transform: translateX(-50%) translateY(-8px) scale(0.98);
    pointer-events: none; visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
}
.search-bar.active {
    opacity: 1; transform: translateX(-50%) translateY(0) scale(1);
    pointer-events: auto; visibility: visible;
}
.search-bar input {
    flex: 1; border: none; background: transparent;
    color: var(--text-primary); font-size: 14px; outline: none;
}
.search-bar input::placeholder { color: var(--text-placeholder); }
.search-nav { display: flex; gap: 4px; align-items: center; }
.search-nav span { font-size: 12px; color: var(--text-secondary); min-width: 50px; text-align: center; }
.search-nav button {
    width: 28px; height: 28px; border: none; background: var(--bg-card);
    color: var(--text-secondary); border-radius: 50%; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
}
.search-nav button:hover { background: var(--bg-hover); color: var(--text-primary); }
.search-close { width: 28px; height: 28px; border: none; background: transparent; color: var(--text-secondary); cursor: pointer; display: flex; align-items: center; justify-content: center; border-radius: 50%; }
.search-close:hover { background: var(--bg-hover); color: var(--text-primary); }

.minimap {
    position: fixed; bottom: 16px; right: 16px;
    width: 160px; height: 100px;
    background: var(--bg-secondary); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm); overflow: hidden; z-index: 50;
    cursor: pointer;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
.minimap.hidden-responsive {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
.minimap-content { width: 100%; height: 100%; position: relative; }
.minimap-viewport { position: absolute; border: 2px solid var(--accent); background: var(--accent-glow); pointer-events: none; border-radius: 2px; }
.minimap-item { position: absolute; border-radius: 1px; opacity: 0.8; }

.toast {
    position: fixed; bottom: 80px; left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--bg-secondary); border: 1px solid var(--border-subtle);
    padding: 12px 20px; border-radius: var(--radius-sm);
    font-size: 13px; box-shadow: var(--shadow-md); z-index: 10000;
    opacity: 0; transition: all 0.3s ease; pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.success { border-color: var(--accent); }
.toast.error { border-color: var(--danger); }

#fileInput { display: none; }

.sidebar {
    position: fixed; top: 0; left: 0; width: var(--sidebar-width, 280px); height: 100%;
    background: var(--bg-secondary); border-right: 1px solid var(--border-subtle);
    z-index: 200; display: flex; flex-direction: column;
    transform: translateX(calc(-1 * var(--sidebar-width, 280px))); transition: transform var(--transition);
}
.sidebar.open { transform: translateX(0); }
.sidebar.resizing { transition: none; }
.sidebar-resize-handle {
    position: absolute; top: 0; right: -4px; width: 8px; height: 100%;
    cursor: ew-resize; z-index: 210;
    background: transparent;
}
.sidebar:not(.open) .sidebar-resize-handle {
    pointer-events: none;
    cursor: default;
}
.sidebar-resize-handle:hover,
.sidebar-resize-handle.active {
    background: var(--accent);
    opacity: 0.5;
}
.sidebar-toggle {
    position: fixed; top: 16px; left: 16px;
    width: 48px; height: 48px;
    background: var(--bg-secondary); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md); color: var(--text-secondary);
    cursor: pointer; display: flex; align-items: center; justify-content: center; z-index: 201;
    box-shadow: var(--shadow-md);
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.sidebar-toggle:hover { background: var(--bg-hover-solid); color: var(--text-primary); border-color: var(--border-active); }
.sidebar.open ~ .sidebar-toggle { left: calc(var(--sidebar-width, 280px) + 16px); }

.sidebar-header { padding: 16px; border-bottom: 1px solid var(--border-subtle); display: flex; align-items: center; justify-content: space-between; }
.sidebar-title { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.sidebar-header-actions { display: flex; gap: 8px; align-items: center; }
.sidebar-pin-btn {
    width: 28px; height: 28px; background: transparent;
    border: 1px solid var(--border-subtle); border-radius: var(--radius-sm);
    color: var(--text-secondary); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.sidebar-pin-btn:hover { background: var(--bg-hover-solid); color: var(--text-primary); border-color: var(--border-active); }
.sidebar-pin-btn.pinned { background: var(--accent); border-color: var(--accent); color: white; }
.sidebar-icon-btn {
    width: 28px; height: 28px; background: transparent;
    border: 1px solid var(--border-subtle); border-radius: var(--radius-sm);
    color: var(--text-secondary); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.sidebar-icon-btn:hover { background: var(--bg-hover-solid); color: var(--text-primary); border-color: var(--border-active); }

.sidebar-add {
    width: 28px; height: 28px; background: var(--accent);
    border: none; border-radius: var(--radius-sm);
    color: white; cursor: pointer; display: flex; align-items: center; justify-content: center;
}
.sidebar-add:hover { filter: brightness(1.1); }

.canvas-list { flex: 1; overflow-y: auto; padding: 8px; }

/* Canvas Groups */
.canvas-group {
    margin-bottom: 4px;
}
.canvas-group-header {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 12px; border-radius: var(--radius-sm);
    cursor: pointer; color: var(--text-secondary);
    transition: all 0.15s ease;
}
.canvas-group-header:hover { background: var(--bg-hover); }
.canvas-group-header .group-chevron {
    width: 16px; height: 16px; transition: transform 0.2s ease;
    flex-shrink: 0;
}
.canvas-group.collapsed .group-chevron { transform: rotate(-90deg); }
.canvas-group-header .group-name {
    flex: 1; font-size: 12px; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.5px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    min-width: 0; cursor: text;
}
.canvas-group-header .group-right {
    position: relative;
    display: flex; align-items: center;
    flex-shrink: 0;
    min-width: 24px;
}
.canvas-group-header .group-count {
    font-size: 11px; color: var(--text-muted);
    background: var(--bg-card); padding: 2px 6px; border-radius: 10px;
    transition: opacity 0.15s;
}
.canvas-group-header .group-actions {
    position: absolute; right: 0; top: 50%; transform: translateY(-50%);
    display: flex; gap: 2px; opacity: 0; pointer-events: none;
    transition: opacity 0.15s;
    background: var(--bg-secondary); padding: 2px;
    border-radius: var(--radius-sm);
}
.canvas-group-header:hover .group-actions { opacity: 1; pointer-events: auto; }
.canvas-group-header:hover .group-count { opacity: 0; }
.canvas-group-header .group-action-btn {
    width: 20px; height: 20px; background: transparent; border: none;
    border-radius: 4px; color: var(--text-secondary); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
}
.canvas-group-header .group-action-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.canvas-group-header .group-action-btn.delete:hover { background: rgba(239, 68, 68, 0.2); color: var(--danger); }
.canvas-group-content {
    padding-left: 16px; overflow: hidden;
    max-height: 1000px; transition: max-height 0.3s ease;
}
.canvas-group.collapsed .canvas-group-content { max-height: 0; }
.canvas-group-content .canvas-item-entry { margin-left: 8px; }
.group-name-input {
    font-size: 12px; font-weight: 600; color: var(--text-primary);
    background: var(--bg-hover); border: none;
    border-radius: 4px; padding: 3px 6px; width: 100%; outline: none;
    text-transform: uppercase; letter-spacing: 0.5px;
    box-sizing: border-box;
}

/* Drag and drop states */
.canvas-item-entry.dragging { opacity: 0.4; }
.canvas-item-entry.drag-over { border: 2px dashed var(--accent); background: var(--accent-glow); }
.canvas-item-entry.drag-over-top {
    position: relative;
}
.canvas-item-entry.drag-over-top::before {
    content: '';
    position: absolute;
    top: -2px; left: 8px; right: 8px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
    z-index: 10;
}
.canvas-item-entry.drag-over-bottom {
    position: relative;
}
.canvas-item-entry.drag-over-bottom::after {
    content: '';
    position: absolute;
    bottom: -2px; left: 8px; right: 8px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
    z-index: 10;
}
.canvas-group-header.drag-over { background: var(--accent-glow); border: 2px dashed var(--accent); border-radius: var(--radius-sm); }
.canvas-list.drag-active .canvas-group-header { background: var(--bg-hover); }
.canvas-list::-webkit-scrollbar { width: 4px; }
.canvas-list::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 2px; }

.canvas-item-entry {
    padding: 10px 12px; border-radius: var(--radius-sm);
    cursor: pointer; display: flex; align-items: center; gap: 10px;
    margin-bottom: 4px; position: relative;
}
.canvas-item-entry:hover { background: var(--bg-hover); }
.canvas-item-entry.active { background: var(--accent-glow); border: 1px solid var(--accent); }
.canvas-item-entry .canvas-icon {
    width: 32px; height: 32px; background: var(--bg-thumbnail);
    border-radius: 6px; display: flex; align-items: center; justify-content: center;
    color: var(--text-secondary); flex-shrink: 0; cursor: pointer;
}
.canvas-item-entry .canvas-icon:hover { transform: scale(1.1); }
.canvas-item-entry.active .canvas-icon:not(.colored) { border: 2px solid var(--accent); }
.canvas-item-entry .canvas-icon .icon-letter { font-size: 14px; font-weight: 700; text-transform: uppercase; }
.canvas-item-entry .canvas-icon.colored { border: 2px solid transparent; }
.canvas-item-entry.active .canvas-icon.colored { border-color: var(--accent); }
.canvas-item-entry .canvas-info { flex: 1; min-width: 0; }
.canvas-item-entry .canvas-name { font-size: 13px; font-weight: 500; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; cursor: text; }
.canvas-item-entry .canvas-meta { font-size: 11px; color: var(--text-secondary); margin-top: 2px; }
.canvas-item-entry .canvas-actions { display: flex; gap: 4px; opacity: 0; }
.canvas-item-entry:hover .canvas-actions { opacity: 1; }
.canvas-item-entry .canvas-action-btn {
    width: 24px; height: 24px; background: transparent; border: none;
    border-radius: 4px; color: var(--text-secondary); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
}
.canvas-item-entry .canvas-action-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.canvas-item-entry .canvas-action-btn.delete:hover { background: rgba(239, 68, 68, 0.2); color: var(--danger); }
.canvas-name-input {
    font-size: 13px; font-weight: 500; color: var(--text-primary);
    background: var(--bg-hover); border: none;
    border-radius: 4px; padding: 3px 6px; width: 100%; outline: none;
    box-sizing: border-box;
}

/* Canvas Customize Picker (Icon + Color unified) */
.canvas-customize-picker {
    position: absolute; left: 12px;
    background: var(--bg-secondary); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md); padding: 12px;
    display: none; flex-direction: column; gap: 12px; width: 220px;
    box-shadow: var(--shadow-lg); z-index: 300;
}
.canvas-customize-picker.active { display: flex; }

.picker-section {
    display: flex; flex-direction: column; gap: 8px;
}
.picker-section-label {
    font-size: 11px; font-weight: 600; color: var(--text-secondary);
    text-transform: uppercase; letter-spacing: 0.5px;
}
.picker-section-content {
    display: flex; gap: 6px; flex-wrap: wrap;
}
.picker-section-content.colors {
    gap: 8px;
}

.canvas-customize-picker .icon-opt {
    width: 32px; height: 32px; border-radius: 6px; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-secondary); background: var(--bg-card); border: 2px solid transparent;
}
.canvas-customize-picker .icon-opt:hover { background: var(--bg-hover); color: var(--text-primary); }
.canvas-customize-picker .icon-opt.selected { border-color: var(--accent); color: var(--accent); }
.canvas-customize-picker .icon-opt.none { font-size: 14px; font-weight: 700; }

.canvas-color-opt {
    width: 24px; height: 24px; border-radius: 50%; cursor: pointer;
    border: 2px solid transparent; transition: all 0.15s ease;
}
.canvas-color-opt:hover { transform: scale(1.15); }
.canvas-color-opt.selected { border-color: var(--text-primary); box-shadow: 0 0 0 2px var(--bg-secondary); }
.canvas-color-opt.none {
    background: var(--bg-card); border: 2px dashed var(--border-subtle);
    display: flex; align-items: center; justify-content: center;
}
.canvas-color-opt.none::after {
    content: ''; width: 14px; height: 2px; background: var(--text-secondary);
    transform: rotate(-45deg);
}

/* Topbar */
.topbar {
    position: fixed; top: 16px; left: 50%; transform: translateX(-50%);
    display: flex; align-items: center; gap: 8px;
    z-index: 100;
}
.topbar-group {
    display: flex; align-items: center; gap: 4px;
    padding: 6px 8px;
    background: var(--bg-secondary); border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle); box-shadow: var(--shadow-md);
}
.topbar-canvas-name {
    font-size: 14px; font-weight: 500; color: var(--text-primary);
    padding: 0 8px; max-width: 150px; overflow: hidden;
    text-overflow: ellipsis; white-space: nowrap;
}
.topbar-btn {
    width: 36px; height: 36px; border-radius: var(--radius-sm);
    border: none; background: transparent; color: var(--text-secondary);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
}
.topbar-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.topbar-btn.active { background: var(--accent); color: white; }
.topbar-btn.disabled { opacity: 0.35; pointer-events: none; cursor: default; }
.topbar-sep { width: 1px; height: 20px; background: var(--border-subtle); margin: 0 4px; }

/* Storage Indicator */
.storage-indicator {
    width: auto !important;
    padding: 0 12px !important;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}
.storage-indicator:hover { color: var(--text-primary); }
.storage-indicator.connected { color: var(--tag-green); }
.storage-indicator.connected:hover { color: var(--tag-green); background: rgba(34, 197, 94, 0.1); }
.storage-indicator.needs-permission { color: var(--tag-orange); }
.storage-indicator.needs-permission:hover { color: var(--tag-orange); background: rgba(249, 115, 22, 0.1); }
.storage-status-text {
    font-size: 11px;
    white-space: nowrap;
}

/* Storage Modal */
.storage-modal-box {
    max-width: 420px;
}
.storage-modal-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 16px;
}
.storage-modal-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    padding: 12px 16px;
    background: var(--bg-hover);
    border-radius: var(--radius-sm);
}
.storage-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-secondary);
    flex-shrink: 0;
}
.storage-status-dot.connected {
    background: var(--tag-green);
    box-shadow: 0 0 8px var(--tag-green);
}
.storage-modal-info {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.storage-modal-info p {
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-secondary);
}
.storage-modal-info strong {
    color: var(--text-primary);
}
.storage-modal-actions {
    display: flex;
    gap: 12px;
}
.storage-modal-actions .modal-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.modal-btn-danger {
    background: var(--danger) !important;
}
.modal-btn-danger:hover {
    background: #dc2626 !important;
}
.storage-modal-note {
    font-size: 11px;
    color: var(--text-placeholder);
    line-height: 1.4;
    padding: 10px 12px;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 12px;
    border-top: 1px solid var(--border-subtle);
}
.sidebar-settings-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: var(--bg-card);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 13px;
    transition: all var(--transition);
}
.sidebar-settings-btn:hover {
    background: var(--bg-hover-solid);
    color: var(--text-primary);
    border-color: var(--border-active);
}

/* Settings Modal */
.settings-modal-box {
    max-width: 560px;
    padding: 0;
    height: 600px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px 0;
    flex-shrink: 0;
}
.settings-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}
.settings-close-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
}
.settings-close-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}
.settings-tabs {
    display: flex;
    gap: 0;
    padding: 16px 24px 0;
    background: transparent;
    overflow: hidden;
    flex-shrink: 0;
    border-bottom: 1px solid var(--border-subtle);
    -webkit-user-select: none;
    user-select: none;
}
.settings-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    background: transparent;
    border: 1px solid transparent;
    border-bottom: none;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    transition: all var(--transition);
    position: relative;
    margin-bottom: -1px;
}
.settings-tab:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}
.settings-tab.active {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-subtle);
    border-bottom: 1px solid var(--bg-secondary);
}
.settings-tab.active svg {
    color: var(--accent);
}
.settings-content {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}
.settings-content::-webkit-scrollbar { width: 4px; }
.settings-content::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 2px; }
.settings-panel {
    display: none;
    height: 100%;
}
.settings-panel.active {
    display: flex;
    flex-direction: column;
}
.settings-section {
    margin-bottom: 24px;
    flex-shrink: 0;
}
.settings-section:last-child {
    margin-bottom: 0;
    padding-bottom: 8px;
}
.settings-section.flex-grow {
    flex: 1;
    display: flex;
    flex-direction: column;
}
.settings-section h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.settings-description {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.5;
}
.settings-option-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.settings-option-btn {
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 13px;
    transition: all var(--transition);
}
.settings-option-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-active);
}
.settings-option-btn.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}
.settings-toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
}
.settings-toggle-row span {
    font-size: 13px;
    color: var(--text-primary);
}
.settings-toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}
.settings-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}
.settings-toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-hover);
    border: 1px solid var(--border-subtle);
    transition: all var(--transition);
    border-radius: 12px;
}
.settings-toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background: var(--text-secondary);
    transition: all var(--transition);
    border-radius: 50%;
}
.settings-toggle input:checked + .settings-toggle-slider {
    background: var(--accent);
    border-color: var(--accent);
}
.settings-toggle input:checked + .settings-toggle-slider:before {
    transform: translateX(20px);
    background: white;
}
.shortcuts-section {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}
.shortcuts-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
    overflow-y: auto;
}
.shortcuts-list::-webkit-scrollbar { width: 4px; }
.shortcuts-list::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 2px; }
.shortcut-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
}
.shortcut-keys {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}
.shortcut-keys kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 6px;
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    font-size: 11px;
    font-family: inherit;
    color: var(--text-primary);
}
.shortcut-desc {
    font-size: 13px;
    color: var(--text-secondary);
    text-align: right;
}
.shortcuts-subheading {
    margin-top: 20px;
    margin-bottom: 12px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

/* Shortcuts Scroll Wrapper with Gradient */
.shortcuts-scroll-wrapper {
    flex: 1;
    overflow-y: auto;
    position: relative;
    -webkit-mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 0,
        black calc(100% - 0px),
        transparent 100%
    );
    mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 0,
        black calc(100% - 0px),
        transparent 100%
    );
    transition: -webkit-mask-image 0.2s, mask-image 0.2s;
}
.shortcuts-scroll-wrapper::-webkit-scrollbar { width: 4px; }
.shortcuts-scroll-wrapper::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 2px; }

/* Gradient states based on scroll position */
.shortcuts-scroll-wrapper.can-scroll-up {
    -webkit-mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 24px,
        black calc(100% - 0px),
        transparent 100%
    );
    mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 24px,
        black calc(100% - 0px),
        transparent 100%
    );
}
.shortcuts-scroll-wrapper.can-scroll-down {
    -webkit-mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 0,
        black calc(100% - 24px),
        transparent 100%
    );
    mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 0,
        black calc(100% - 24px),
        transparent 100%
    );
}
.shortcuts-scroll-wrapper.can-scroll-up.can-scroll-down {
    -webkit-mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 24px,
        black calc(100% - 24px),
        transparent 100%
    );
    mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 24px,
        black calc(100% - 24px),
        transparent 100%
    );
}

/* Storage Location Cards */
.storage-cards {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}
.storage-card {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 16px;
    padding: 28px 20px;
    background: var(--bg-card);
    border: 2px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}
.storage-card:hover {
    border-color: var(--border-active);
    background: var(--bg-hover);
}
.storage-card.active {
    border-color: var(--accent);
    background: var(--accent-glow);
}
.storage-card.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}
.storage-card.disabled:hover {
    border-color: var(--border-subtle);
    background: var(--bg-secondary);
}
.storage-card-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition);
}
.storage-card:hover .storage-card-icon {
    color: var(--text-primary);
}
.storage-card.active .storage-card-icon {
    background: var(--accent);
    color: white;
}
.storage-card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-align: center;
}
.storage-card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}
.storage-card-desc {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
}
.storage-card.active .storage-card-title {
    color: var(--accent);
}
.storage-card-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 5px 10px;
    background: var(--tag-green);
    color: white;
    font-size: 10px;
    font-weight: 600;
    border-radius: 4px;
    margin-top: 2px;
}
.storage-card-badge.disconnected {
    background: var(--text-secondary);
}

/* File Storage Path Section */
.storage-path-section {
    display: none;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}
.storage-path-section.active {
    display: flex;
}
.storage-path-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.storage-path-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
}
.storage-path-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}
.storage-path-status.connected {
    color: var(--tag-green);
}
.storage-path-status .status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-secondary);
}
.storage-path-status.connected .status-dot {
    background: var(--tag-green);
    box-shadow: 0 0 6px var(--tag-green);
}
.storage-path-display {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-secondary);
}
.storage-path-display svg {
    flex-shrink: 0;
    color: var(--text-placeholder);
}
.storage-path-display span {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.storage-path-actions {
    display: flex;
    gap: 8px;
}
.storage-path-actions .modal-btn {
    flex: 1;
    padding: 10px 16px;
}

/* Storage Info Note */
.storage-info-note {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
}
.storage-info-note svg {
    flex-shrink: 0;
    color: var(--accent);
    margin-top: 2px;
}
.storage-info-note p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Storage Scroll Wrapper with Gradient */
.storage-scroll-wrapper {
    flex: 1;
    overflow-y: auto;
    position: relative;
    -webkit-mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 0,
        black calc(100% - 0px),
        transparent 100%
    );
    mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 0,
        black calc(100% - 0px),
        transparent 100%
    );
    transition: -webkit-mask-image 0.2s, mask-image 0.2s;
}
.storage-scroll-wrapper::-webkit-scrollbar { width: 4px; }
.storage-scroll-wrapper::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 2px; }

/* Gradient states based on scroll position */
.storage-scroll-wrapper.can-scroll-up {
    -webkit-mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 24px,
        black calc(100% - 0px),
        transparent 100%
    );
    mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 24px,
        black calc(100% - 0px),
        transparent 100%
    );
}
.storage-scroll-wrapper.can-scroll-down {
    -webkit-mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 0,
        black calc(100% - 24px),
        transparent 100%
    );
    mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 0,
        black calc(100% - 24px),
        transparent 100%
    );
}
.storage-scroll-wrapper.can-scroll-up.can-scroll-down {
    -webkit-mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 24px,
        black calc(100% - 24px),
        transparent 100%
    );
    mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 24px,
        black calc(100% - 24px),
        transparent 100%
    );
}

/* Node Style Scroll Wrapper with Gradient */
.nodestyle-scroll-wrapper {
    flex: 1;
    overflow-y: auto;
    position: relative;
    padding-bottom: 24px;
    -webkit-mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 0,
        black calc(100% - 0px),
        transparent 100%
    );
    mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 0,
        black calc(100% - 0px),
        transparent 100%
    );
    transition: -webkit-mask-image 0.2s, mask-image 0.2s;
}
.nodestyle-scroll-wrapper::-webkit-scrollbar { width: 4px; }
.nodestyle-scroll-wrapper::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 2px; }

/* Gradient states based on scroll position */
.nodestyle-scroll-wrapper.can-scroll-up {
    -webkit-mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 24px,
        black calc(100% - 0px),
        transparent 100%
    );
    mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 24px,
        black calc(100% - 0px),
        transparent 100%
    );
}
.nodestyle-scroll-wrapper.can-scroll-down {
    -webkit-mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 0,
        black calc(100% - 24px),
        transparent 100%
    );
    mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 0,
        black calc(100% - 24px),
        transparent 100%
    );
}
.nodestyle-scroll-wrapper.can-scroll-up.can-scroll-down {
    -webkit-mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 24px,
        black calc(100% - 24px),
        transparent 100%
    );
    mask-image: linear-gradient(
        to bottom,
        transparent 0,
        black 24px,
        black calc(100% - 24px),
        transparent 100%
    );
}

/* Data Section in Storage Tab */
.storage-data-section {
    padding: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
}
.storage-data-section:last-child {
    margin-bottom: 24px;
}
.storage-data-section h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.storage-data-section .settings-description {
    margin-bottom: 12px;
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
}
.storage-data-section .modal-btn {
    width: 100%;
}

/* Font Size Preview */
.font-size-preview {
    margin-top: 16px;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
}
.font-size-preview .preview-label {
    display: block;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-placeholder);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}
.font-size-preview .preview-text {
    color: var(--text-secondary);
    line-height: 1.6;
    transition: font-size var(--transition);
}
.font-size-preview .preview-text.size-small {
    font-size: 13px;
}
.font-size-preview .preview-text.size-medium {
    font-size: 15px;
}
.font-size-preview .preview-text.size-large {
    font-size: 18px;
}
.font-size-preview .preview-text.size-xlarge {
    font-size: 22px;
}