:root {
  color: #252525;
  background: #ffffff;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body { margin: 0; min-width: 320px; }

button, input { font: inherit; }

.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  display: flex;
  flex: 0 0 48px;
  flex-direction: column;
  min-height: 100vh;
  border-right: 1px solid #e8e8e8;
  background: #f5f5f5;
}

.brand {
  display: grid;
  width: 100%;
  height: 48px;
  place-items: center;
  color: #202020;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: #202020;
}
.brand-mark svg { width: 19px; height: 19px; }

.main-nav { display: grid; gap: 8px; padding: 10px 8px; }
.nav-link, .help-button, .profile-button {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 0;
  border-radius: 7px;
  color: #696969;
  background: transparent;
  cursor: pointer;
  text-decoration: none;
}

.nav-link:hover, .help-button:hover, .profile-button:hover { color: #202020; background: #e8e8e8; }
.nav-link.is-active { color: #fff; background: #202020; }
.nav-icon { width: 17px; height: 17px; }
.nav-separator { width: 20px; height: 1px; margin: 2px auto; background: #d3d3d3; }
.sidebar-footer { display: grid; justify-items: center; gap: 8px; margin-top: auto; padding: 10px 8px; }
.help-button { border: 0; border-radius: 7px; }
.help-button svg { width: 17px; height: 17px; }
.account-menu { position: relative; }
.profile-button { padding: 0; overflow: hidden; }
.profile-avatar { display: block; width: 28px; height: 28px; border: 1px solid rgb(0 0 0 / 8%); border-radius: 7px; background: radial-gradient(circle at 65% 31%, #f7d96e 0 13%, transparent 14%), radial-gradient(circle at 37% 67%, #e86d99 0 22%, transparent 23%), linear-gradient(135deg, #5fb6e3 0 47%, #8063cf 48% 68%, #ecaa62 69%); }
.account-actions { position: absolute; bottom: 0; left: 40px; z-index: 20; display: grid; min-width: 154px; padding: 5px; border: 1px solid #e1e1e1; border-radius: 9px; background: #fff; box-shadow: 0 8px 18px rgb(0 0 0 / 14%); }
.account-actions[hidden] { display: none; }
.account-actions a, .account-actions button { display: flex; width: 100%; height: 32px; align-items: center; gap: 9px; padding: 0 9px; border: 0; border-radius: 5px; color: #333; background: transparent; cursor: pointer; font-size: 13px; text-align: left; text-decoration: none; }
.account-actions a:hover, .account-actions button:hover { background: #f2f2f2; }
.account-actions svg { width: 15px; height: 15px; color: #686868; }
.theme-control { display: flex; height: 32px; align-items: center; justify-content: space-between; gap: 8px; padding: 0 7px; color: #333; font-size: 13px; }
.theme-label { display: inline-flex; align-items: center; gap: 8px; }
.theme-label svg { width: 15px; height: 15px; }
.theme-toggle { display: inline-flex; gap: 2px; padding: 2px; border-radius: 999px; background: #eeeeee; }
.theme-toggle .theme-button { display: grid; width: 22px; height: 22px; place-items: center; padding: 0; border-radius: 50%; color: #777; }
.theme-toggle .theme-button[aria-checked="true"] { color: #292929; background: #fff; box-shadow: 0 1px 2px rgb(0 0 0 / 16%); }
.theme-toggle .theme-button svg { width: 13px; height: 13px; color: currentColor; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }

html[data-theme="dark"] { color: #eeeeee; background: #191919; }
html[data-theme="dark"] .app-main, html[data-theme="dark"] .canvas-header, html[data-theme="dark"] .canvas-stage, html[data-theme="dark"] .canvas-world { background-color: #191919; }
html[data-theme="dark"] .sidebar { border-color: #303030; background: #242424; }
html[data-theme="dark"] .nav-link, html[data-theme="dark"] .help-button, html[data-theme="dark"] .profile-button { color: #ababab; }
html[data-theme="dark"] .nav-link:hover, html[data-theme="dark"] .help-button:hover, html[data-theme="dark"] .profile-button:hover { color: #fff; background: #343434; }
html[data-theme="dark"] .nav-link.is-active, html[data-theme="dark"] .brand-mark { background: #f2f2f2; color: #222; }
html[data-theme="dark"] .canvas-header { border-color: #343434; }
html[data-theme="dark"] .canvas-header h1 { color: #f0f0f0; }
html[data-theme="dark"] .canvas-world { background-image: radial-gradient(#4b4b4b 1px, transparent 1px); }
html[data-theme="dark"] .canvas-svg .canvas-shape { fill: #292929; stroke: #ededed; }
html[data-theme="dark"] .canvas-svg .canvas-connector, html[data-theme="dark"] .canvas-svg .canvas-drawing { stroke: #ededed; }
html[data-theme="dark"] .canvas-svg .canvas-text { fill: #ededed; }
html[data-theme="dark"] .canvas-svg .connection-anchor { fill: #292929; stroke: #a59dff; }
html[data-theme="dark"] .canvas-toolbar, html[data-theme="dark"] .tool-button, html[data-theme="dark"] .canvas-controls, html[data-theme="dark"] .canvas-controls button, html[data-theme="dark"] .canvas-controls output, html[data-theme="dark"] .bottom-control-button, html[data-theme="dark"] .history-controls, html[data-theme="dark"] .history-controls button { border-color: #454545; color: #e8e8e8; background: #292929; }
html[data-theme="dark"] .tool-button:hover, html[data-theme="dark"] .tool-button.is-selected, html[data-theme="dark"] .canvas-controls button:hover, html[data-theme="dark"] .bottom-control-button:hover, html[data-theme="dark"] .bottom-control-button[aria-pressed="true"], html[data-theme="dark"] .history-controls button:hover { background: #3a3a3a; }
html[data-theme="dark"] .header-action-button, html[data-theme="dark"] .header-icon-button { border-color: #454545; color: #ededed; background: #292929; }
html[data-theme="dark"] .header-action-button:hover, html[data-theme="dark"] .header-icon-button:hover { background: #383838; }
html[data-theme="dark"] .header-export-button { border-color: #f0f0f0; color: #202020; background: #f0f0f0; }
html[data-theme="dark"] .account-actions { border-color: #484848; background: #292929; }
html[data-theme="dark"] .account-actions a, html[data-theme="dark"] .account-actions button, html[data-theme="dark"] .theme-control { color: #eeeeee; }
html[data-theme="dark"] .account-actions a:hover, html[data-theme="dark"] .account-actions button:hover { background: #3b3b3b; }
html[data-theme="dark"] .account-actions svg, html[data-theme="dark"] .theme-label svg { color: #bcbcbc; }
html[data-theme="dark"] .theme-toggle { background: #1b1b1b; }
html[data-theme="dark"] .theme-toggle .theme-button[aria-checked="true"] { color: #f4f4f4; background: #444; }

.app-main { min-width: 0; flex: 1; background: #fff; }
.empty-page { min-height: 100vh; padding: 40px; }
.empty-page h1 { margin: 0; color: #252525; font-size: 22px; font-weight: 650; letter-spacing: -0.02em; }
.settings-page { width: min(760px, calc(100% - 48px)); margin: 52px auto; }
.settings-heading { display: grid; gap: 7px; margin-bottom: 24px; }
.settings-heading p { margin: 0; color: #6366f1; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.settings-heading h1 { margin: 0; color: #1e293b; font-size: 26px; letter-spacing: -.03em; }
.settings-heading > span { color: #64748b; font-size: 14px; }
.user-management-card { overflow: hidden; border: 1px solid #e2e8f0; border-radius: 12px; background: #fff; box-shadow: 0 8px 20px rgb(15 23 42 / 7%); }
.user-management-header, .user-row, .user-row-actions { display: flex; align-items: center; }
.user-management-header { justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid #edf1f5; }
.user-management-header h2 { margin: 0; color: #334155; font-size: 14px; }
.user-management-header span { color: #94a3b8; font-size: 12px; }
.user-list { display: grid; }
.user-row { justify-content: space-between; gap: 18px; padding: 13px 16px; border-bottom: 1px solid #f1f5f9; }
.user-row:last-child { border-bottom: 0; }
.user-row > div:first-child { display: grid; min-width: 0; gap: 3px; }
.user-row strong { color: #334155; font-size: 13px; }
.user-row > div:first-child span { overflow: hidden; color: #64748b; font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.user-row-actions { flex: 0 0 auto; gap: 8px; }
.user-status { padding: 3px 7px; border-radius: 5px; font-size: 11px; font-weight: 650; }
.user-status.is-admin { color: #5b21b6; background: #ede9fe; }
.user-status.is-active { color: #166534; background: #dcfce7; }
.user-status.is-pending { color: #92400e; background: #fef3c7; }
.approve-user-button { height: 28px; padding: 0 9px; border: 1px solid #c7d2fe; border-radius: 6px; color: #4338ca; background: #eef2ff; cursor: pointer; font: 650 12px Inter, Arial, sans-serif; }
.approve-user-button:hover { background: #e0e7ff; }

.canvas-page { position: relative; display: flex; flex-direction: column; height: 100vh; min-height: 530px; overflow: hidden; }
.canvas-header { display: flex; align-items: center; justify-content: space-between; min-height: 48px; padding: 0 14px; border-bottom: 1px solid #e8e8e8; background: #fff; }
.canvas-title-group, .canvas-title, .canvas-actions { display: flex; align-items: center; }
.canvas-title-group { gap: 12px; }
.canvas-title { gap: 8px; }
.canvas-header h1 { margin: 0; color: #262626; font-size: 15px; font-weight: 500; letter-spacing: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; }
.map-title-control { display: inline-flex; height: 30px; align-items: center; border: 1px solid transparent; border-radius: 7px; }
.map-title-control:focus-within { border-color: #b7b2f6; box-shadow: 0 0 0 2px rgb(98 88 223 / 15%); }
.map-title-control input { width: 220px; padding: 0 7px; border: 0; outline: 0; color: #262626; background: transparent; font: 500 15px Inter, Arial, sans-serif; }
.canvas-read-only { color: #a16207; font-size: 12px; font-weight: 600; }
.canvas-read-only a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
.canvas-read-only a:hover { color: #854d0e; }
.header-dot { width: 4px; height: 4px; border-radius: 50%; background: #a4a4a4; }
.canvas-actions { display: flex; align-items: center; gap: 8px; }
.public-toggle { display: inline-flex; align-items: center; gap: 7px; color: #555; cursor: pointer; font-size: 12px; font-weight: 550; }
.public-toggle input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.toggle-track { position: relative; width: 28px; height: 16px; border-radius: 999px; background: #d3d3d3; transition: background .15s ease; }
.toggle-track::after { position: absolute; top: 2px; left: 2px; width: 12px; height: 12px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgb(0 0 0 / 18%); content: ""; transition: transform .15s ease; }
.public-toggle input:checked + .toggle-track { background: #6258df; }
.public-toggle input:checked + .toggle-track::after { transform: translateX(12px); }
.public-toggle:has(input:disabled) { cursor: default; opacity: .58; }
.save-state { color: #777; font-size: 12px; }
.primary-button, .secondary-button { border-radius: 7px; cursor: pointer; font-size: 13px; font-weight: 550; }
.primary-button { padding: 8px 13px; border: 1px solid #202020; color: #fff; background: #202020; }
.primary-button:hover { background: #3a3a3a; }
.secondary-button { padding: 8px 13px; border: 1px solid #dedede; color: #424242; background: #fff; }
.secondary-button:hover { background: #f5f5f5; }
.compact-button { padding: 8px 13px; }
.header-action-button, .header-icon-button { display: inline-flex; height: 28px; align-items: center; justify-content: center; gap: 5px; padding: 0 10px; border: 1px solid #e0e0e0; border-radius: 7px; color: #303030; background: #fff; cursor: pointer; font-size: 13px; font-weight: 550; }
.header-action-button:hover, .header-icon-button:hover { background: #f3f3f3; }
.header-action-button svg, .header-icon-button svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.map-save-button { display: grid; width: 28px; height: 28px; place-items: center; padding: 0; border: 0; border-radius: 6px; color: #b7b7b7; background: transparent; cursor: default; }
.map-save-button svg { width: 18px; height: 18px; stroke-width: 2.5; }
.map-save-button.is-active { color: #171717; cursor: pointer; }
.map-save-button.is-active:hover { background: #f1f1f1; }
.map-save-button.is-saving { color: #525252; }
.header-icon-button { width: 28px; padding: 0; border-color: transparent; }
.header-icon-button:disabled { cursor: not-allowed; opacity: .38; }
.header-export-button { border-color: #222; color: #fff; background: #222; }
.header-export-button:hover { background: #404040; }
.export-control { position: relative; }
.export-menu { position: absolute; z-index: 9; top: calc(100% + 7px); right: 0; display: grid; min-width: 142px; gap: 2px; padding: 5px; border: 1px solid #e2e8f0; border-radius: 8px; background: #fff; box-shadow: 0 10px 24px rgb(15 23 42 / 14%); }
.export-menu[hidden] { display: none; }
.export-menu button { display: flex; height: 30px; align-items: center; gap: 7px; padding: 0 8px; border: 0; border-radius: 5px; color: #334155; background: transparent; cursor: pointer; font: 550 12px Inter, Arial, sans-serif; text-align: left; }
.export-menu button:hover { background: #f1f5f9; }
.export-menu svg { width: 15px; height: 15px; }
.header-separator { width: 1px; height: 16px; margin: 0 1px; background: #e2e2e2; }
.saved-maps-panel { position: absolute; z-index: 8; top: 56px; right: 14px; display: grid; width: 260px; max-height: min(420px, calc(100% - 72px)); overflow: hidden; border: 1px solid #e2e8f0; border-radius: 12px; background: #fff; box-shadow: 0 16px 36px rgb(15 23 42 / 16%); }
.saved-maps-panel[hidden] { display: none; }
.saved-maps-panel-header { display: flex; align-items: center; justify-content: space-between; padding: 12px 12px 9px; border-bottom: 1px solid #edf1f5; }
.saved-maps-panel-header h2 { margin: 0; color: #334155; font-size: 13px; font-weight: 700; }
.saved-maps-panel-header button { display: grid; width: 26px; height: 26px; place-items: center; border: 0; border-radius: 6px; color: #64748b; background: transparent; cursor: pointer; }
.saved-maps-panel-header button:hover { color: #334155; background: #f1f5f9; }
.saved-maps-panel-header button svg { width: 16px; height: 16px; }
.new-map-form { padding: 8px 8px 0; }
.new-map-form button { display: flex; width: 100%; height: 32px; align-items: center; justify-content: center; gap: 7px; border: 1px solid #e0e0e0; border-radius: 7px; color: #303030; background: #fff; cursor: pointer; font: 550 13px Inter, Arial, sans-serif; }
.new-map-form button:hover { background: #f3f3f3; }
.new-map-form button svg { width: 15px; height: 15px; stroke-width: 1.8; }
.saved-maps-list { display: grid; gap: 3px; max-height: 350px; overflow-y: auto; padding: 8px; }
.saved-map-link { display: flex; min-width: 0; align-items: center; gap: 9px; padding: 9px; border-radius: 8px; color: #475569; font-size: 13px; font-weight: 600; text-decoration: none; }
.saved-map-link:hover { color: #312e81; background: #f5f3ff; }
.saved-map-link.is-current { color: #4338ca; background: #eef2ff; }
.saved-map-link svg { flex: 0 0 auto; width: 16px; height: 16px; }
.saved-map-link span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.canvas-stage { position: relative; flex: 1; overflow: hidden; cursor: crosshair; background-color: #fff; background-position: var(--canvas-background-x, 0) var(--canvas-background-y, 0); touch-action: none; }
.canvas-stage.is-dragging { cursor: grabbing; }
.canvas-stage[data-tool="hand"], .canvas-stage[data-tool="selection"] { cursor: default; }
.canvas-world { position: absolute; inset: 0; transform-origin: 0 0; }
.canvas-stage[data-background="dotted"] { background-image: radial-gradient(#dedede 1px, transparent 1px); background-size: 24px 24px; }
.canvas-stage[data-background="grid"] { background-image: linear-gradient(#e9e9e9 1px, transparent 1px), linear-gradient(90deg, #e9e9e9 1px, transparent 1px); background-size: 24px 24px; }
.canvas-svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.canvas-svg .canvas-element { cursor: move; vector-effect: non-scaling-stroke; }
.canvas-svg .canvas-shape { vector-effect: non-scaling-stroke; }
.canvas-svg .canvas-mindmap-node { vector-effect: non-scaling-stroke; filter: drop-shadow(0 3px 4px rgb(49 46 129 / 12%)); }
.canvas-svg .canvas-frame { stroke-linecap: round; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.canvas-svg .canvas-frame-title { pointer-events: none; user-select: none; dominant-baseline: middle; }
.canvas-svg .canvas-shape-label { pointer-events: none; user-select: none; dominant-baseline: middle; }
.canvas-svg .canvas-connector, .canvas-svg .canvas-drawing { fill: none; stroke-linecap: round; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.canvas-svg .canvas-connector-hit-area { fill: none; stroke: transparent; stroke-width: 16px; pointer-events: stroke; vector-effect: non-scaling-stroke; }
.canvas-svg .canvas-connector-label { stroke: #fff; stroke-width: 5px; paint-order: stroke; font-size: 14px; font-weight: 500; pointer-events: none; user-select: none; dominant-baseline: middle; }
.canvas-svg .connector-bend-handle { fill: #fff; stroke: #6258df; stroke-width: 1.5; cursor: move; vector-effect: non-scaling-stroke; }
.canvas-svg .connector-bend-handle:hover { fill: #6258df; }
.canvas-svg .arrow-endpoint-handle { fill: #fff; stroke: #6258df; stroke-width: 1.5; cursor: crosshair; vector-effect: non-scaling-stroke; }
.canvas-svg .arrow-endpoint-handle:hover { fill: #6258df; }
.canvas-svg .canvas-text { dominant-baseline: hanging; user-select: none; }
.canvas-svg .selection-outline { fill: rgb(98 88 223 / 8%); stroke: #6258df; stroke-dasharray: 4 3; stroke-width: 1; pointer-events: none; vector-effect: non-scaling-stroke; }
.canvas-svg .canvas-image { pointer-events: none; }
.canvas-svg .resize-handle { fill: #fff; stroke: #6258df; stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.canvas-svg .resize-handle:hover { fill: #6258df; }
.canvas-svg .resize-top-left, .canvas-svg .resize-bottom-right { cursor: nwse-resize; }
.canvas-svg .resize-top-right, .canvas-svg .resize-bottom-left { cursor: nesw-resize; }
.canvas-svg .resize-top, .canvas-svg .resize-bottom { cursor: ns-resize; }
.canvas-svg .resize-left, .canvas-svg .resize-right { cursor: ew-resize; }
.canvas-svg .is-preview { opacity: .7; pointer-events: none; }
.canvas-svg .connection-anchor { fill: #fff; stroke: #6258df; stroke-width: 2; cursor: crosshair; vector-effect: non-scaling-stroke; }
.canvas-svg .connection-anchor:hover { fill: #6258df; }
.canvas-svg .selection-marquee { fill: rgb(98 88 223 / 10%); stroke: #6258df; stroke-dasharray: 5 4; stroke-width: 1.5; pointer-events: none; vector-effect: non-scaling-stroke; }
.shape-text-editor { position: absolute; z-index: 3; box-sizing: border-box; resize: none; padding: 5px 7px; border: 1px solid #6258df; border-radius: 4px; outline: none; color: #1f2937; background: #fff; font: 500 16px/18px Inter, Arial, sans-serif; text-align: center; overflow: hidden; }
.object-properties { position: absolute; z-index: 4; top: 20px; left: 18px; display: flex; flex-direction: column; box-sizing: border-box; width: 280px; height: calc(100% - 40px); overflow-y: auto; padding: 10px; border: 1px solid #e3e3e3; border-radius: 8px; background: #fff; box-shadow: 0 8px 20px rgb(0 0 0 / 12%); color: #252525; }
.object-properties[hidden] { display: none !important; }
.object-properties [hidden] { display: none !important; }
.object-properties section, .object-properties fieldset { margin: 0 0 10px; padding: 0 0 10px; border: 0; border-bottom: 1px solid #ededed; }
.object-properties h2, .object-properties legend { margin: 0 0 6px; padding: 0; color: #747474; font-size: 11px; font-weight: 650; }
.object-properties [data-color-property-group] { display: none !important; }
.color-palette-options { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; }
.color-palette-options button { width: 28px; height: 28px; justify-self: center; padding: 0; border: 1px solid color-mix(in srgb, var(--palette-stroke) 35%, transparent); border-radius: 50%; color: var(--palette-stroke); background: var(--palette-fill); cursor: pointer; font: 700 12px/1 Inter, Arial, sans-serif; }
.color-palette-options button:hover { transform: translateY(-1px); box-shadow: 0 2px 5px rgb(15 23 42 / 14%); }
.color-palette-options button.is-active { outline: 2px solid #252525; outline-offset: 2px; }
.property-swatches, .property-options { display: flex; gap: 4px; }
.property-swatches { overflow-x: auto; padding: 2px; scroll-snap-type: x mandatory; scrollbar-width: thin; touch-action: pan-x; }
.property-swatches button { flex: 0 0 20px; width: 20px; height: 20px; border: 1px solid #d5d5d5; border-radius: 5px; background: var(--swatch); cursor: pointer; scroll-snap-align: start; }
.property-swatches button[data-value="transparent"] { background-image: linear-gradient(45deg, #ddd 25%, transparent 25%), linear-gradient(-45deg, #ddd 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #ddd 75%), linear-gradient(-45deg, transparent 75%, #ddd 75%); background-position: 0 0, 0 4px, 4px -4px, -4px 0; background-size: 8px 8px; }
.property-swatches button.is-active { outline: 2px solid #6258df; outline-offset: 1px; }
.property-options button { display: grid; flex: 1; min-width: 0; height: 28px; place-items: center; border: 1px solid transparent; border-radius: 10px; color: #252525; background: #f7f7f7; cursor: pointer; font-size: 10px; }
.property-options.icon-options { display: grid; flex: 0 0 210px; grid-template-columns: repeat(4, 1fr); align-content: start; height: 210px; min-height: 0; overflow-y: auto; padding: 2px 4px 2px 2px; scrollbar-width: thin; }
.property-options.icon-options button { width: 100%; }
.object-properties [data-icon-controls] { display: flex; flex: 0 0 auto; flex-direction: column; order: -1; }
.icon-search-control { display: grid; gap: 5px; margin: 0 0 8px; color: #64748b; font-size: 11px; font-weight: 650; }
.icon-search-control input { width: 100%; height: 28px; padding: 0 8px; border: 1px solid #dbe3ec; border-radius: 7px; color: #334155; background: #f8fafc; font: inherit; font-weight: 500; }
.icon-search-control input:focus { border-color: #94a3b8; outline: 2px solid rgb(148 163 184 / 25%); outline-offset: 1px; }
.tool-button > svg, .tool-button > i > svg { width: 18px; height: 18px; }
.canvas-svg .icon-card { vector-effect: non-scaling-stroke; }
.canvas-svg .icon-card-label { pointer-events: none; user-select: none; dominant-baseline: hanging; }
.property-options button:hover { background: #f1f1f1; }
.property-options button.is-active, .property-options button.is-active:hover { border-color: #e7e7e7; color: #252525; background: #e7e7e7; }
.object-actions [data-object-action="delete"] { color: #bf3030; }
.object-actions [data-object-action="delete"]:hover { color: #9f2424; background: #fff0f0; }
.property-options svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; }
.edge-icon { width: 15px; height: 15px; border: 1.75px solid currentColor; }
.edge-icon-round { border-radius: 4px; }
.property-options [data-value="1"] .lucide { stroke-width: 1.2; }
.property-options [data-value="2"] .lucide { stroke-width: 2.4; }
.property-options [data-value="4"] .lucide { stroke-width: 4; }
.text-format-control { display: grid; grid-template-columns: 35px minmax(0, 1fr); align-items: center; gap: 6px; margin-top: 6px; color: #747474; font-size: 11px; font-weight: 650; }
.text-format-control select { min-width: 0; height: 28px; padding: 0 7px; border: 1px solid #e1e1e1; border-radius: 7px; color: #363636; background: #f7f7f7; font: inherit; font-weight: 500; }
.opacity-control { display: grid; grid-template-columns: 1fr 66px 24px; align-items: center; gap: 6px; margin: 0 0 10px; color: #747474; font-size: 11px; font-weight: 650; }
.opacity-control input { width: 100%; accent-color: #6258df; }
.opacity-control output { color: #555; text-align: right; font-size: 10px; }
.canvas-toolbar { position: absolute; top: 22px; left: 50%; display: flex; align-items: center; overflow: hidden; border-radius: 8px; background: #fff; box-shadow: 0 2px 8px rgb(0 0 0 / 14%); transform: translateX(-50%); }
.tool-button { display: grid; width: 32px; height: 32px; place-items: center; margin-left: -1px; border: 1px solid #dedede; color: #373737; background: #fff; cursor: pointer; }
.tool-button:first-child { margin-left: 0; border-radius: 8px 0 0 8px; }
.tool-button:last-child { border-radius: 0 8px 8px 0; }
.tool-button:hover, .tool-button.is-selected { position: relative; z-index: 1; background: #f0f0f0; }
.tool-button svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.tool-diamond { fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.canvas-hint { position: absolute; top: 75px; left: 50%; color: #969696; font-size: 12px; transform: translateX(-50%); }
.canvas-bottom-bar { position: absolute; bottom: 20px; left: 20px; display: flex; align-items: center; gap: 8px; }
.canvas-controls, .history-controls { display: flex; align-items: center; overflow: hidden; border: 1px solid #dedede; border-radius: 8px; background: #fff; box-shadow: 0 2px 6px rgb(0 0 0 / 8%); }
.canvas-controls button, .canvas-controls output { display: grid; width: 32px; height: 32px; place-items: center; border: 0; color: #4a4a4a; background: #fff; font-size: 17px; cursor: pointer; }
.canvas-controls button:hover { background: #f4f4f4; }
.canvas-controls button svg, .bottom-control-button svg, .history-controls svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.canvas-controls output { width: 56px; border-right: 1px solid #e7e7e7; border-left: 1px solid #e7e7e7; font-size: 12px; font-weight: 600; cursor: default; }
.bottom-control-button, .history-controls button { display: grid; width: 34px; height: 34px; place-items: center; padding: 0; border: 1px solid #dedede; border-radius: 8px; color: #4a4a4a; background: #fff; box-shadow: 0 2px 6px rgb(0 0 0 / 8%); cursor: pointer; }
.bottom-control-button:hover, .bottom-control-button[aria-pressed="true"], .history-controls button:hover { background: #f4f4f4; }
.history-controls { border-radius: 8px; }
.history-controls button { border: 0; border-radius: 0; box-shadow: none; }
.history-controls button + button { border-left: 1px solid #e7e7e7; }
.history-controls button:disabled { cursor: not-allowed; opacity: .38; }

.auth-page {
  min-height: 100vh;
  background: #f8fafc;
}
.auth-main { min-height: 100vh; padding: 0; }
.auth-layout { display: grid; min-height: 100vh; grid-template-columns: minmax(420px, 1fr) minmax(460px, 1.1fr); }
.auth-panel { display: grid; align-content: center; justify-items: center; gap: 30px; padding: 42px; background: #fff; }
.auth-brand { position: absolute; top: 28px; left: 36px; display: inline-flex; align-items: center; gap: 9px; color: #0f172a; font-size: 15px; font-weight: 700; text-decoration: none; }
.auth-brand .brand-mark { display: grid; width: 30px; height: 30px; place-items: center; border-radius: 8px; color: #fff; background: #172033; font-size: 17px; }
.auth-card { display: grid; width: min(100%, 420px); gap: 24px; padding: 40px 34px 24px; border: 1px solid #e2e8f0; border-radius: 24px; background: #fff; box-shadow: 0 16px 36px rgb(15 23 42 / 8%); }
.auth-heading { text-align: center; }
.auth-heading h1 { margin: 0; color: #111827; font-size: clamp(28px, 2.5vw, 34px); font-weight: 750; letter-spacing: -0.055em; }
.auth-heading p { margin: 8px 0 0; color: #64748b; font-size: 15px; }
.auth-form { display: grid; gap: 16px; }
.auth-form label { display: grid; gap: 8px; color: #1e293b; font-size: 14px; font-weight: 650; }
.auth-form input { width: 100%; height: 52px; padding: 0 15px; border: 1px solid #dbe3ec; border-radius: 13px; outline: none; color: #0f172a; background: #fff; font-size: 16px; }
.auth-form input::placeholder { color: #94a3b8; }
.auth-form input:focus { border-color: #64748b; box-shadow: 0 0 0 4px rgb(100 116 139 / 12%); }
.auth-form .primary-button { width: 100%; height: 52px; margin-top: 2px; padding: 0 12px; border: 0; border-radius: 13px; background: #172033; font-size: 16px; }
.auth-form .primary-button:hover { background: #0f172a; }
.password-label > span:first-child { display: flex; align-items: center; justify-content: space-between; }
.text-button { padding: 0; border: 0; color: #64748b; background: transparent; cursor: pointer; font-size: 13px; font-weight: 500; }
.text-button:hover { color: #0f172a; text-decoration: underline; }
.password-input { position: relative; display: block; }
.password-input input { padding-right: 45px; }
.password-toggle { position: absolute; top: 50%; right: 14px; width: 28px; height: 28px; padding: 0; border: 0; color: #64748b; background: transparent; cursor: pointer; font-size: 16px; transform: translateY(-50%); }
.form-message { margin: -10px 0 0; padding: 10px 12px; border: 1px solid #fecdd3; border-radius: 9px; color: #be123c; background: #fff1f2; font-size: 13px; }
.auth-card-footer { display: grid; gap: 14px; padding-top: 18px; border-top: 1px solid #e7edf3; color: #94a3b8; font-size: 13px; text-align: center; }
.auth-switch { margin: 0; color: #64748b; font-size: 14px; }
.auth-switch a { color: #0f172a; font-weight: 650; text-decoration: none; }
.auth-switch a:hover { text-decoration: underline; }
.auth-footnote { width: min(100%, 420px); margin: 0; color: #94a3b8; font-size: 12px; font-weight: 600; }
.auth-showcase { position: relative; display: grid; overflow: hidden; align-items: end; padding: clamp(42px, 7vw, 96px); color: #fff; background: linear-gradient(150deg, #10293f 0%, #274a62 45%, #0c1625 100%); }
.auth-showcase::before, .auth-showcase::after { position: absolute; border: 1px solid rgb(255 255 255 / 18%); border-radius: 50%; content: ""; }
.auth-showcase::before { top: -20%; right: -14%; width: 76%; aspect-ratio: 1; box-shadow: 0 0 0 76px rgb(255 255 255 / 4%), 0 0 0 152px rgb(255 255 255 / 3%); }
.auth-showcase::after { bottom: 11%; left: -20%; width: 56%; aspect-ratio: 1; background: radial-gradient(circle at 58% 40%, rgb(45 212 191 / 40%) 0 2%, transparent 2.5%); }
.auth-showcase-content { position: relative; z-index: 1; max-width: 560px; }
.auth-showcase-content p { margin: 0 0 20px; color: #c4f1e7; font-size: 12px; font-weight: 750; letter-spacing: .14em; }
.auth-showcase-content h2 { margin: 0; max-width: 600px; font-size: clamp(42px, 5vw, 72px); font-weight: 720; line-height: .98; letter-spacing: -.06em; }
.auth-showcase-content span { display: block; max-width: 410px; margin-top: 24px; color: #d7e5ec; font-size: 17px; line-height: 1.55; }

@media (max-width: 840px) {
  .auth-layout { grid-template-columns: 1fr; }
  .auth-panel { min-height: 100vh; padding: 92px 20px 30px; }
  .auth-brand { top: 24px; left: 24px; }
  .auth-card { padding: 40px 28px 26px; }
  .auth-showcase { display: none; }
}
@media (max-width: 640px) {
  .canvas-header { padding: 0 10px; }
  .canvas-actions .header-action-button:not(.header-export-button), .save-state, .header-separator { display: none; }
}