:root{color-scheme:light dark;--bg: light-dark(#f5f8f7, #0b1113);--surface: light-dark(#ffffff, #121a1d);--surface-2: light-dark(#eef3f1, #192327);--surface-3: light-dark(#e4ebe9, #212e33);--ink: light-dark(#0b1f1b, #e9f1ee);--ink-2: light-dark(#3b504b, #b4c5c0);--ink-3: light-dark(#5c706b, #8b9e99);--line: light-dark(#dde6e3, #253237);--line-strong: light-dark(#c0cdc9, #394a50);--field-border: light-dark(#7a8c87, #687a81);--brand: light-dark(#0b7a68, #4fd1b3);--brand-strong: light-dark(#075e50, #7de1c9);--brand-tint: light-dark(#e2f4ef, #11302a);--on-brand: light-dark(#ffffff, #06211c);--accent: light-dark(#dc4b35, #ff8b72);--accent-tint: light-dark(#fdeee9, #3a1f19);--accent-strong: light-dark(#b93c27, #ff8b72);--on-accent: light-dark(#ffffff, #2a0e08);--success: light-dark(#177a47, #5fd38d);--gold: light-dark(#a86a12, #f2c14e);--warning: light-dark(#9a5b00, #f5b94f);--warning-tint: light-dark(#fff5e0, #33280f);--danger: light-dark(#b42318, #ff8f85);--danger-tint: light-dark(#fef0ee, #3a1c1a);--radius-sm: 10px;--radius: 14px;--radius-lg: 22px;--radius-pill: 999px;--s-1: 4px;--s-2: 8px;--s-3: 12px;--s-4: 16px;--s-5: 24px;--s-6: 32px;--s-7: 48px;--s-8: 72px;--fs-xs: .78rem;--fs-sm: .875rem;--fs-md: 1rem;--fs-lg: 1.125rem;--fs-xl: clamp(1.25rem, 1.1rem + .7vw, 1.55rem);--fs-2xl: clamp(1.6rem, 1.25rem + 1.6vw, 2.3rem);--fs-3xl: clamp(2.05rem, 1.4rem + 3vw, 3.4rem);--shadow-sm: 0 1px 2px light-dark(rgb(11 31 27 / .06), rgb(0 0 0 / .4));--shadow: 0 1px 2px light-dark(rgb(11 31 27 / .05), rgb(0 0 0 / .35)), 0 8px 24px -8px light-dark(rgb(11 31 27 / .12), rgb(0 0 0 / .5));--shadow-lg: 0 2px 4px light-dark(rgb(11 31 27 / .05), rgb(0 0 0 / .4)), 0 24px 48px -16px light-dark(rgb(11 31 27 / .22), rgb(0 0 0 / .7));--ring: 0 0 0 3px light-dark(rgb(11 122 104 / .3), rgb(79 209 179 / .4));--halo: 0 0 0 4px color-mix(in srgb, var(--brand) 16%, transparent), 0 8px 22px -8px color-mix(in srgb, var(--brand) 55%, transparent);--ease: cubic-bezier(.2, .8, .2, 1);--dur-1: .12s;--dur-2: .22s;--dur-3: .42s;--font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--paper: var(--bg);--panel: var(--surface);--soft: var(--ink-2);--muted: var(--ink-2);--tint: var(--brand-tint);font-family:var(--font);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;--canvas: light-dark(#fbfdfc, #10181c);--canvas-dot: light-dark(#d5dfdb, #26343b);--control-h: 36px;font-size:14px;line-height:1.5}*{box-sizing:border-box}html,body{width:100%;height:100%}body{margin:0;height:100dvh;display:flex;flex-direction:column;background:var(--bg)}button,input,textarea,select{font:inherit;color:inherit}button,a,input,textarea,select{touch-action:manipulation}h1,h2,h3,p{margin:0 0 10px}h1,h2,h3{font-weight:700;letter-spacing:-.01em;line-height:1.25}h1{font-size:1.3rem;letter-spacing:-.02em}h2{font-size:1.07rem}h3{font-size:1rem}p:last-child{margin-bottom:0}a{color:var(--brand);text-underline-offset:3px}a:hover{color:var(--brand-strong)}:focus-visible{outline:2px solid var(--brand);outline-offset:2px}hr{border:0;border-top:1px solid var(--line);margin:20px 0}.i{width:16px;height:16px;flex:none;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.help{color:var(--ink-2);font-size:.93rem;line-height:1.5;margin:8px 0;overflow-wrap:anywhere}.eyebrow{display:block;margin:0 0 2px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);line-height:1.3}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.skip-link{position:absolute;left:12px;top:-100px;z-index:10;background:var(--surface);color:var(--brand-strong);padding:10px 14px;border-radius:var(--radius-sm);box-shadow:var(--shadow)}.skip-link:focus{top:8px}[hidden]{display:none!important}button{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:var(--control-h);padding:6px 12px;background:var(--surface);color:var(--ink);border:1px solid var(--line-strong);border-radius:10px;font-weight:600;font-size:.93rem;line-height:1.2;cursor:pointer;white-space:nowrap}button:hover:not(:disabled){background:var(--surface-2)}button:disabled{opacity:.45;cursor:not-allowed}button.primary{background:var(--brand);color:var(--on-brand);border-color:var(--brand);box-shadow:var(--shadow-sm)}button.primary:hover:not(:disabled){background:var(--brand-strong);border-color:var(--brand-strong)}button.quiet{background:transparent;border-color:transparent;color:var(--ink-2)}button.quiet:hover:not(:disabled){background:var(--surface-2);color:var(--ink)}button.danger{color:var(--danger)}button.danger:hover:not(:disabled){background:var(--danger-tint);border-color:color-mix(in srgb,var(--danger) 40%,transparent)}button[aria-pressed=true],button[aria-selected=true]{background:var(--brand-tint);color:var(--brand-strong);border-color:color-mix(in srgb,var(--brand) 45%,transparent)}button[aria-pressed=true]:hover:not(:disabled),button[aria-selected=true]:hover:not(:disabled){background:var(--brand-tint)}.icon-button{width:var(--control-h);padding:0}.icon-button .i{width:18px;height:18px}input,select,textarea{display:block;width:100%;min-width:0;min-height:40px;margin-top:6px;padding:8px 12px;background:var(--surface);color:var(--ink);border:1px solid var(--field-border);border-radius:10px;font-size:.93rem;font-weight:400}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:var(--ring)}input:disabled,select:disabled,textarea:disabled{background:var(--surface-2);color:var(--ink-3)}input[readonly]{background:var(--surface-2);font-family:var(--mono);font-size:.86rem}input::placeholder,textarea::placeholder{color:var(--ink-3)}select{appearance:none;padding-right:36px;cursor:pointer;background:var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='none' stroke='%237f918c' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 8 4 4 4-4'/%3E%3C/svg%3E") no-repeat right 10px center / 18px}textarea{resize:vertical;min-height:72px;max-height:240px;line-height:1.5}input[type=range]{padding:0;min-height:28px;border:0;background:none;accent-color:var(--brand);box-shadow:none}input[type=checkbox]{width:18px;height:18px;min-height:18px;margin:0;padding:0;accent-color:var(--brand);flex:none}label{display:block;min-width:0;font-size:.93rem;font-weight:600;color:var(--ink);margin-bottom:14px}label.checkbox{display:flex;align-items:center;gap:10px;align-self:end;min-height:40px;margin-bottom:0;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface-2);font-weight:500;cursor:pointer}output{display:block;margin:-8px 0 14px;color:var(--ink-2);font-size:.86rem;font-variant-numeric:tabular-nums}.badge,.chip,.count{display:inline-flex;align-items:center;gap:6px;flex:none;padding:3px 10px;border-radius:var(--radius-pill);font-size:12px;font-weight:600;line-height:1.4;white-space:nowrap;background:var(--surface-2);color:var(--ink-2);border:1px solid var(--line)}.chip-brand{background:var(--brand-tint);color:var(--brand-strong);border-color:color-mix(in srgb,var(--brand) 30%,transparent)}#save-state:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor;opacity:.8}#save-state[data-state=saved]{background:var(--brand-tint);color:var(--brand-strong);border-color:color-mix(in srgb,var(--brand) 30%,transparent)}#save-state[data-state=dirty]{background:var(--warning-tint);color:var(--warning);border-color:color-mix(in srgb,var(--warning) 35%,transparent)}.page-header{flex:none;height:48px;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--surface);border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:10px;font-size:1.07rem;font-weight:700;letter-spacing:-.01em;text-decoration:none;color:var(--ink)}.brand:hover{color:var(--ink)}.brand-mark{width:28px;height:28px;flex:none}.brand-mark rect{fill:var(--brand)}.brand-mark circle{fill:var(--on-brand)}.brand-mark path{fill:none;stroke:var(--on-brand);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}.brand-detail{font-size:.86rem;font-weight:500;color:var(--ink-3);border-left:1px solid var(--line-strong);padding-left:10px;margin-left:2px;letter-spacing:0}.page-header nav{display:flex;gap:4px}.page-header nav a{padding:6px 10px;border-radius:var(--radius-sm);color:var(--ink-2);font-weight:600;font-size:.93rem;text-decoration:none}.page-header nav a:hover{background:var(--surface-2);color:var(--ink)}.theme-switch{flex:none;display:inline-flex;gap:2px;min-inline-size:0;margin:0;padding:2px;border:1px solid var(--line);border-radius:var(--radius-pill);background:var(--surface-2)}.theme-switch label{position:relative;display:grid;place-items:center;width:30px;height:28px;margin:0;border:1px solid transparent;border-radius:var(--radius-pill);color:var(--ink-2);cursor:pointer}.theme-switch input{position:absolute;inset:0;width:100%;height:100%;min-height:0;margin:0;padding:0;border:0;opacity:0;appearance:none;box-shadow:none;cursor:pointer}.theme-switch .i{pointer-events:none}.theme-switch label:hover{color:var(--ink)}.theme-switch label:has(:checked){border-color:var(--brand);background:var(--surface);color:var(--brand-strong);box-shadow:var(--shadow-sm)}.theme-switch label:has(:focus-visible){outline:2px solid var(--brand);outline-offset:2px}@media(pointer:coarse){.theme-switch label{width:34px;height:32px}}main{flex:1;min-height:0;width:100%;margin:0;padding:8px 12px 10px;display:flex;flex-direction:column;gap:8px}.docbar{flex:none;display:flex;align-items:center;justify-content:space-between;gap:12px 20px;flex-wrap:wrap}.doc-identity{display:flex;align-items:flex-end;gap:12px;min-width:0;flex:1 1 320px}.doc-heading{margin:0;min-width:0}#doc-title{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.doc-identity .badge{margin-bottom:2px}.doc-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.history-actions{display:flex;gap:2px;padding-right:8px;margin-right:2px;border-right:1px solid var(--line)}.history-actions button{background:transparent;border-color:transparent;color:var(--ink-2)}.history-actions button:hover:not(:disabled){background:var(--surface-2);color:var(--ink)}.doc-actions>button{min-height:38px;padding-inline:16px}.subbar{flex:none;display:flex;align-items:center;gap:8px 16px;flex-wrap:wrap}.panel-launchers{display:flex;gap:2px;padding:3px;border-radius:var(--radius);background:var(--surface-2);border:1px solid var(--line);flex:none}.panel-launchers button{min-height:32px;padding:4px 12px;background:transparent;border-color:transparent;color:var(--ink-2);border-radius:var(--radius-sm)}.panel-launchers button:hover:not(:disabled){background:var(--surface);color:var(--ink)}.count{padding:1px 8px;font-variant-numeric:tabular-nums;background:var(--surface)}#diagnostics-toggle[data-severity=error] .count{background:var(--danger-tint);color:var(--danger);border-color:color-mix(in srgb,var(--danger) 35%,transparent)}#diagnostics-toggle[data-severity=warning] .count{background:var(--warning-tint);color:var(--warning);border-color:color-mix(in srgb,var(--warning) 35%,transparent)}#diagnostics-toggle[data-severity=clear] .count{background:var(--brand-tint);color:var(--brand-strong);border-color:color-mix(in srgb,var(--brand) 30%,transparent)}.status-area{flex:1 1 320px;min-width:0;display:grid;gap:6px}.notice{--tone: var(--brand);display:flex;align-items:baseline;gap:8px;margin:0;padding:7px 12px;border:1px solid color-mix(in srgb,var(--tone) 28%,transparent);border-radius:10px;background:color-mix(in srgb,var(--tone) 8%,var(--surface));color:var(--ink);font-size:.93rem;line-height:1.45;overflow-wrap:anywhere}.notice:before{content:"";flex:none;width:7px;height:7px;border-radius:50%;background:var(--tone);transform:translateY(-1px)}.notice.error{--tone: var(--danger);background:var(--danger-tint)}.notice.error a{color:var(--danger);font-weight:600}.notice:empty{display:none}.workspace{flex:1;min-height:0;min-width:0;padding:0;margin:0;border:0;display:grid;grid-template-columns:180px minmax(0,1fr) 300px;gap:10px}.card{min-width:0;min-height:0;overflow:hidden;padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}.section-heading h2,.section-heading h3{margin:0}.section-heading>button{flex:none}.step-rail .section-heading h2{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3)}.step-rail .section-heading button{min-height:30px;padding:4px 8px;font-size:.86rem;color:var(--brand-strong)}.step-rail{display:flex;flex-direction:column;padding:12px}.step-list{display:flex;flex-direction:column;gap:8px;list-style:none;padding:2px;margin:0;overflow:auto;min-height:0;counter-reset:steps}.step-list li{flex:none;min-width:0;counter-increment:steps}.step-list button{width:100%;min-height:56px;padding:10px 10px 10px 8px;display:grid;grid-template-columns:26px minmax(0,1fr);column-gap:10px;row-gap:2px;align-items:start;justify-content:stretch;text-align:left;white-space:normal;overflow-wrap:anywhere;border-color:var(--line);border-radius:var(--radius-sm);background:var(--surface)}.step-list button:before{content:counter(steps);grid-row:1 / span 2;display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--surface-2);color:var(--ink-2);font-size:12px;font-weight:700;font-variant-numeric:tabular-nums}.step-name{font-size:.93rem;font-weight:600;line-height:1.3}.step-list small{display:block;font-size:12px;font-weight:500;color:var(--ink-3);line-height:1.35}.step-flag.is-error{color:var(--danger);font-weight:600}.step-flag.is-warning{color:var(--warning);font-weight:600}.step-list button:hover:not(:disabled){border-color:var(--line-strong);background:var(--surface)}.step-list button[aria-current=step]{background:var(--brand-tint);border-color:color-mix(in srgb,var(--brand) 45%,transparent);box-shadow:inset 3px 0 0 var(--brand)}.step-list button[aria-current=step]:before{background:var(--brand);color:var(--on-brand)}.step-list button[aria-current=step] .step-name{color:var(--brand-strong)}.drawing-card{display:flex;flex-direction:column;gap:10px;padding:12px;container-type:inline-size}.drawing-card>.section-heading{flex:none;margin:0}.drawing-heading{flex-wrap:wrap;gap:8px 12px}.snapshot-heading{min-width:0;flex:1 1 220px}#drawing-title{overflow:hidden;overflow-wrap:anywhere;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2}#snapshot-context{margin:2px 0 0;overflow:hidden;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2;font-size:.86rem;color:var(--ink-3)}.toolbar,.actions,.step-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.toolbar{flex:0 1 auto;flex-wrap:nowrap;min-width:0;gap:8px}.tool-segment{display:flex;gap:2px;padding:3px;border-radius:var(--radius);background:var(--surface-2);border:1px solid var(--line);flex-wrap:wrap;min-width:0}.tool-segment button{min-height:34px;padding:4px 12px;background:transparent;border-color:transparent;color:var(--ink-2);border-radius:var(--radius-sm)}.tool-segment button:hover:not(:disabled){background:var(--surface);color:var(--ink)}.tool-segment button[aria-pressed=true]{background:var(--surface);color:var(--brand-strong);border-color:color-mix(in srgb,var(--brand) 45%,transparent);box-shadow:var(--shadow-sm),inset 0 0 0 1px color-mix(in srgb,var(--brand) 20%,transparent)}.tool-segment button[aria-pressed=true] .i{color:var(--brand)}@container (max-width: 940px){.tool-segment button{padding:4px 7px;gap:4px}#cancel-tool{padding:4px 9px}#cancel-tool .button-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}}@container (max-width: 640px){.tool-segment button{padding:4px 5px;gap:3px;font-size:12.5px}}#tool-help{position:absolute;left:12px;bottom:12px;max-width:min(680px,calc(100% - 24px));margin:0;padding:6px 12px;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow-sm);background:color-mix(in srgb,var(--surface) 92%,transparent);color:var(--ink-2);font-size:.9rem;line-height:1.45;pointer-events:none}#tool-help:empty{display:none}.canvas-actions{position:absolute;top:10px;right:10px;display:flex;gap:6px}.canvas-actions button{min-height:32px;padding:4px 10px;background:color-mix(in srgb,var(--surface) 92%,transparent);border-color:var(--line);box-shadow:var(--shadow-sm)}.canvas-actions button:hover:not(:disabled){background:var(--surface)}.ring-templates{position:absolute;top:10px;left:10px;display:flex;gap:2px;padding:3px;border:1px solid var(--line);border-radius:var(--radius);background:color-mix(in srgb,var(--surface) 94%,transparent);box-shadow:var(--shadow-sm)}.ring-templates[hidden]{display:none}.ring-templates button{width:38px;min-height:36px;padding:0;justify-content:center;background:transparent;border-color:transparent;color:var(--ink-2)}.ring-templates button:hover:not(:disabled){background:var(--surface-2);color:var(--ink)}.ring-templates button[aria-pressed=true]{background:var(--brand-tint);border-color:color-mix(in srgb,var(--brand) 45%,transparent);color:var(--brand-strong)}.ring-templates svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round}.canvas-wrap{position:relative;flex:1;min-height:0;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-sm);background-color:var(--canvas);background-image:radial-gradient(var(--canvas-dot) 1.1px,transparent 1.3px);background-size:20px 20px;background-position:10px 10px}.canvas-empty{position:absolute;inset:0;display:grid;place-content:center;justify-items:center;gap:4px;padding:16px;text-align:center;pointer-events:none;color:var(--ink-2)}.canvas-empty p{margin:0;font-size:.93rem}.canvas-empty .canvas-empty-title{font-size:1rem;font-weight:700;color:var(--ink)}.canvas-empty-icon{display:grid;place-items:center;width:48px;height:48px;margin-bottom:6px;border-radius:50%;background:var(--brand-tint);color:var(--brand);border:1px dashed color-mix(in srgb,var(--brand) 50%,transparent)}.canvas-empty-icon .i{width:22px;height:22px}.canvas-scan{display:none}[data-editor-mode=local] .canvas-scan{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:6px 10px;margin-top:6px;pointer-events:auto;transition:opacity .18s ease}.canvas-scan-link{padding:6px 14px;border:1px solid color-mix(in srgb,var(--brand) 45%,transparent);border-radius:var(--radius-pill);background:var(--brand-tint);color:var(--brand-strong);font-weight:700;text-decoration:none}.canvas-scan-link:hover{border-color:var(--brand)}.canvas-scan-plan{color:var(--ink-2);font-size:.875rem;font-weight:600}.canvas-empty.is-drawing .canvas-scan{pointer-events:none;opacity:.35}#graph{display:block;width:100%;height:100%;touch-action:none;user-select:none}#graph:focus-visible{outline-offset:-3px}#graph text{font-family:var(--font);pointer-events:none}#graph .graph-object{cursor:pointer;outline:none}.canvas-wrap.is-hand #graph,.canvas-wrap.is-hand #graph .graph-object{cursor:grab}.canvas-wrap.is-panning #graph,.canvas-wrap.is-panning #graph .graph-object{cursor:grabbing}#graph .object-halo{fill:transparent;stroke:transparent}#graph .graph-object:hover .object-halo{stroke:color-mix(in srgb,var(--brand) 45%,transparent);stroke-width:2}#graph .selected .object-halo,#graph .graph-object:focus .object-halo{stroke:var(--brand);stroke-width:2;stroke-dasharray:4 3;fill:color-mix(in srgb,var(--brand) 9%,transparent)}#graph .graph-object:focus-visible .object-halo{stroke-width:3;stroke-dasharray:none}#graph circle.object-halo{vector-effect:non-scaling-stroke}#graph .graph-object:hover circle.object-halo{stroke-width:2.5px}#graph .selected circle.object-halo,#graph .graph-object:focus circle.object-halo{stroke-width:3px}#graph .graph-object:focus-visible circle.object-halo{stroke-width:3.5px}#graph .graph-object:hover :is(line,path).object-halo{stroke:color-mix(in srgb,var(--brand) 14%,transparent);stroke-width:14;stroke-linecap:round;stroke-dasharray:none}#graph :is(.selected,.graph-object:focus)>:is(line,path).object-halo{stroke:color-mix(in srgb,var(--brand) 26%,transparent);stroke-width:14;stroke-linecap:round;stroke-dasharray:none}#graph .graph-object:focus-visible>:is(line,path).object-halo{stroke:color-mix(in srgb,var(--brand) 42%,transparent)}#graph[data-tool=atom]{cursor:crosshair}#graph[data-tool=delete]{cursor:not-allowed}#graph[data-tool=wedge],#graph[data-tool=hash]{cursor:crosshair}#graph .stereo-preview{pointer-events:none;opacity:.55}#graph[data-tool=bond],#graph[data-tool=chain],#graph[data-tool=ring]{cursor:crosshair}#graph 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8px;border-color:var(--line);border-radius:var(--radius);background:var(--surface);white-space:normal;text-align:left;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}.template-card:hover:not(:disabled){border-color:color-mix(in srgb,var(--brand) 55%,transparent);background:var(--surface);box-shadow:var(--shadow);transform:translateY(-2px)}.template-thumb{display:block;width:100%;height:92px;border-radius:var(--radius-sm);background:var(--canvas)}.template-label{font-size:.86rem;font-weight:600;line-height:1.3;overflow-wrap:anywhere}.canvas-templates{grid-template-columns:repeat(3,150px);gap:8px;margin-top:12px;pointer-events:auto;transition:opacity .18s ease}.canvas-templates .template-card{padding:4px 4px 6px;gap:4px}.canvas-templates .template-thumb{height:64px}.canvas-templates .template-label{font-size:.8rem;line-height:1.25}[data-editor-mode=local] .canvas-empty p:not(.canvas-empty-title){order:2;margin-top:10px}.canvas-empty.is-drawing 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var(--line-strong);border-radius:var(--radius);background:var(--surface);color:var(--ink);font-weight:700;text-decoration:none}.btn-primary{background:var(--brand);border-color:var(--brand);color:var(--on-brand);box-shadow:var(--shadow-sm)}.btn-primary:hover{background:var(--brand-strong);border-color:var(--brand-strong);color:var(--on-brand)}.try-glow{box-shadow:var(--halo)}.try-glow:focus-visible{outline:3px solid var(--brand-strong);outline-offset:4px}@media(prefers-reduced-motion:no-preference){.try-glow{animation:halo 2.6s ease-in-out infinite}}@keyframes halo{50%{box-shadow:0 0 0 7px color-mix(in srgb,var(--brand) 18%,transparent),0 10px 28px -6px color-mix(in srgb,var(--brand) 60%,transparent)}}#paywall-dialog,#delete-dialog{width:480px}#paywall-dialog .actions,#delete-dialog .actions{margin-top:20px}#delete-dialog #delete-confirm{margin-left:auto}.delete-name{font-weight:600}[data-editor-mode=local] body{height:auto;min-height:100dvh;overflow:auto}[data-editor-mode=local] 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li:before{content:counter(guide-step);display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--brand-tint);color:var(--brand-strong);font-weight:700;font-variant-numeric:tabular-nums}.guide-free{font-weight:600}.editor-guide details{border-top:1px solid var(--line);padding:4px 0}.editor-guide details:last-child{border-bottom:1px solid var(--line)}.editor-guide summary{display:flex;align-items:center;gap:10px;min-height:44px;padding:4px 0;list-style:none;cursor:pointer;font-size:1rem;font-weight:600}.editor-guide summary::-webkit-details-marker{display:none}.editor-guide summary:before{content:"";flex:none;width:8px;height:8px;margin:0 6px 0 4px;border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:translateY(-2px) rotate(45deg);transition:transform .2s ease}.editor-guide details[open] summary:before{transform:translateY(1px) rotate(225deg)}.editor-guide summary:hover{color:var(--brand-strong)}.editor-guide details p{margin:2px 0 10px 28px}.verbose-toggle{margin:0 0 16px}.verbose-toggle input{width:18px;height:18px;min-height:18px;margin:0;padding:0;accent-color:var(--brand);flex:none}.verbose-toggle span{font-size:.9rem;line-height:1.35}.doc-heading:has(>#rename-glyph){display:flex;align-items:center;gap:2px;min-width:0}.doc-heading:has(>#rename-glyph) #doc-title{min-width:0}.rename-glyph{flex:none;width:28px;min-height:28px;height:28px;color:var(--ink-3);background:transparent;border-color:transparent}.rename-glyph .i{width:15px;height:15px}.rename-glyph:hover:not(:disabled){color:var(--brand-strong);background:var(--brand-tint);border-color:transparent}#status.is-hint{--tone: var(--brand);border-color:color-mix(in srgb,var(--brand) 45%,transparent);background:var(--brand-tint);font-weight:600;pointer-events:auto;cursor:pointer}body.has-tour-banner .page-header .brand{display:none}body.has-tour-banner .page-header .nav-local{margin-left:auto}@media(max-width:700px),(orientation:landscape)and (max-height:500px)and (max-width:899.98px){[data-editor-mode=local] .workspace{height:calc(100dvh - var(--workspace-top, 149px) - var(--tour-card-h, 0px) - var(--scan-bar-h, 0px) - 1px);min-height:300px}html[data-editor-mode=local]:has(>body.tour-running){overflow:hidden}[data-editor-mode=local] body.tour-running{height:100dvh;overflow:hidden}.mechanism-row{flex-direction:row;align-items:center}.mechanism-actions{flex-direction:column}.mechanism-actions button{min-height:40px;min-width:40px}.mechanism-open{min-height:40px;display:flex;align-items:center}#template-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.canvas-templates{grid-template-columns:repeat(2,minmax(0,1fr));width:min(360px,100%);gap:6px;margin-top:8px}.canvas-templates .template-card{padding:4px 4px 6px;gap:3px}.canvas-templates .template-thumb{height:58px}.canvas-templates .template-label{font-size:11px;line-height:1.2}[data-editor-mode=local] .canvas-empty p:not(.canvas-empty-title){margin-top:8px}.editor-guide{margin-top:20px}.editor-guide h1{font-size:1.4rem}.guide-steps li{grid-template-columns:28px minmax(0,1fr);gap:10px;padding:10px 12px}.guide-steps li:before{width:28px;height:28px}.guide-actions{flex-direction:column;align-items:stretch}.guide-actions .btn{width:100%}.guide-actions .guide-free{text-align:center;padding:8px 0}}@media(orientation:landscape)and (max-height:500px)and (max-width:899.98px){.canvas-templates{grid-template-columns:repeat(3,minmax(0,1fr));width:min(520px,100%);margin-top:6px}.canvas-templates .template-thumb{display:none}.canvas-templates .template-card{min-height:36px;padding:2px 6px;align-content:center}}