:root{font-family:Meiryo,'Yu Gothic UI',system-ui,sans-serif;color:#192734;background:#fff;font-size:13px;--accent:#42d3ac;--border:#dce2e8;--canvas:#182330;--muted:#657586}
*{box-sizing:border-box}body{margin:0;height:100dvh;display:grid;grid-template-rows:68px minmax(0,1fr) 52px;overflow:hidden}button,input,select{font:inherit}button{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid var(--border);background:white;border-radius:6px;padding:9px 13px;color:inherit;cursor:pointer;white-space:nowrap;transition:background .12s}button:hover{background:#edf6f3}button:disabled{opacity:.35;cursor:default}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid #138569;outline-offset:2px}.icon{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none}
.toolbar{display:flex;align-items:center;gap:16px;padding:0 28px;border-bottom:1px solid var(--border);min-width:0}.brand{display:flex;align-items:center;gap:14px;font-family:system-ui,sans-serif;font-size:24px;font-weight:700;white-space:nowrap;letter-spacing:-.5px}.brand-mark{width:28px;height:28px;background:var(--accent);display:grid;place-items:center}.brand-mark:after{content:'';width:10px;height:10px;background:white}#filename{border-left:1px solid #c8d0d9;padding-left:20px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;max-width:190px}#dirty{margin-left:-14px;color:#168c70}.file-actions,.history-actions{display:flex;gap:10px}.file-actions{margin-left:20px}.history-actions{padding-left:15px;border-left:1px solid #c8d0d9}.history-actions button{border:0}#help{margin-left:auto;border-radius:50%;padding:0;width:28px;height:28px;font-weight:bold}
.workspace{display:grid;grid-template-columns:clamp(160px,12.12vw,192px) minmax(0,1fr) clamp(280px,23.86vw,378px);min-height:0}.tools{background:#f1f4f7;border-right:1px solid var(--border);display:flex;flex-direction:column;min-height:0;padding:16px 12px;overflow:auto}.tools button{width:100%;justify-content:flex-start;padding:15px 14px;border:0;background:transparent;font-size:15px;border-radius:6px;gap:20px}.tools .icon{width:28px;height:28px}.tools button:hover{background:#e3ebe9}.tools button[aria-pressed=true]{background:#bff3e5;color:#17372f}.tool-utilities{border-top:1px solid var(--border);margin-top:18px;padding-top:10px}.tool-utilities button{font-size:12px;padding:9px 14px;gap:12px}.tool-utilities .icon{width:18px;height:18px}.version{margin-top:auto;padding:25px 14px 0;color:var(--muted);font-size:11px}
.drawing-area{position:relative;min-width:0;min-height:0;background:var(--canvas);overflow:hidden}#canvas{width:100%;height:100%;display:block;touch-action:none;outline:none;cursor:crosshair;user-select:none}.prompt{position:absolute;left:16px;top:14px;pointer-events:none;display:flex;gap:12px;color:#b7c8d6;font-size:12px;background:#182330e8;padding:8px 12px;border-radius:4px;max-width:calc(100% - 32px)}#tool-label{color:#66ddbd;white-space:nowrap}.view-controls{position:absolute;bottom:18px;right:18px;display:flex}.view-controls button{background:#263544;color:#c9d8e0;border-color:#41505e;border-radius:0;padding:3px 12px;font-size:19px}
.inspector{padding:20px 22px;border-left:1px solid var(--border);overflow-y:auto;min-width:0}.inspector h1{font-size:18px;margin:0 0 16px;font-weight:700}.inspector h2{font-size:15px;margin:0 0 14px}.inspector section{padding:22px 0;border-top:1px solid var(--border)}.properties{font-size:11px;color:var(--muted);min-height:26px;margin-bottom:15px;line-height:1.7;overflow-wrap:anywhere}.muted{color:var(--muted);font-size:11px;line-height:1.6;margin:-3px 0 13px}#numeric-form{display:grid;gap:10px}#numeric-form label{display:grid;grid-template-columns:1fr minmax(80px,54%) 28px;align-items:center;gap:8px;font-size:13px}input[type=number],select{padding:7px 10px;border:1px solid #ced7e1;border-radius:5px;width:100%;background:#fff;color:#253343;min-width:0;height:36px}#numeric-form label span{font-size:11px}input:disabled{background:#f4f6f8;color:#a0aab3}.primary{background:var(--accent);border-color:var(--accent);font-weight:600;padding:12px;margin-top:10px}.primary:hover{background:#36c79f}.dimension-kind{display:flex;align-items:center;gap:12px;font-size:12px}.dimension-kind select{flex:1}dl{display:grid;grid-template-columns:1fr 1.2fr;gap:12px;margin:0;font-size:12px}dt{color:#536271}dd{margin:0;text-align:right;font-variant-numeric:tabular-nums}
.statusbar{display:flex;align-items:center;gap:22px;padding:0 28px;border-top:1px solid var(--border);font-size:12px;white-space:nowrap;font-variant-numeric:tabular-nums}.statusbar>span:not(:first-child){border-left:1px solid #ced6df;padding-left:22px}.statusbar button{border:0;padding:6px 0;background:transparent;font-size:12px}.statusbar button[aria-pressed=false]{color:#8793a0}.toggle{width:34px;height:18px;background:#a8b4be;border-radius:20px;position:relative}.toggle:after{content:'';position:absolute;left:3px;top:3px;width:12px;height:12px;border-radius:50%;background:white}button[aria-pressed=true] .toggle{background:var(--accent)}button[aria-pressed=true] .toggle:after{left:19px}.grid-snap{font-size:11px;display:flex;gap:6px;align-items:center}input[type=checkbox]{accent-color:#168c70}#count{margin-left:auto;color:var(--muted)}#notice{position:fixed;bottom:68px;left:50%;transform:translateX(-50%);padding:10px 18px;background:#fff;color:#253443;border:1px solid #d0dce4;border-radius:6px;box-shadow:0 4px 20px #0002;pointer-events:none;opacity:0;font-size:12px;transition:opacity .15s;max-width:90vw}#notice.visible{opacity:1}
dialog{border:1px solid var(--border);border-radius:10px;padding:28px;width:min(580px,90vw);color:#253443}dialog::backdrop{background:#14222f80}dialog h2{margin-top:0}dialog dl{grid-template-columns:110px 1fr;line-height:1.8}dialog dd{text-align:left}dialog p{font-size:12px;line-height:1.8}dialog .primary{width:100%}
.properties:empty{display:none}
[data-selected="true"][data-selected-region="false"]{filter:drop-shadow(0 0 2px #fff1a5)}
#hatch-panel label[hidden]{display:none}
.color-palette{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:5px;margin:0 0 12px}.color-palette button{width:100%;min-width:0;height:24px;padding:0;border:1px solid #a7b2be;border-radius:3px}.color-palette button[aria-pressed=true]{outline:2px solid #193e50;outline-offset:1px}
#hatch-panel[hidden]{display:none}#hatch-panel label{display:grid;gap:6px;font-size:12px;margin-bottom:12px}#hatch-color{width:100%;height:36px;border:1px solid #ced7e1;background:white}#hatch-sample{width:100%;height:110px;background:#f5f7fa;border:1px solid #ced7e1;border-radius:5px;margin:0 0 12px}#hatch-opacity-presets{display:flex;gap:6px;margin-bottom:14px}#hatch-opacity-presets button{font-size:11px;padding:6px 10px}.toolbar #fit{padding:8px;border:0}
#cad-context-menu[hidden]{display:none}#cad-context-menu{position:fixed;z-index:50;display:grid;min-width:190px;max-width:calc(100vw - 16px);padding:6px;background:#fff;border:1px solid #cbd6df;border-radius:8px;box-shadow:0 8px 28px #0003}#cad-context-menu button{justify-content:flex-start;border:0;border-radius:4px;padding:10px 14px;font-size:13px;text-align:left}#cad-context-menu button:hover,#cad-context-menu button:focus-visible{background:#d5f8ee;outline:2px solid #168c70;outline-offset:-2px}#cad-context-menu button:disabled{color:#9aa5ae;background:transparent;outline:none}
.file-actions{flex-shrink:0}#dxf-dialog{max-height:88dvh;overflow:auto;max-width:94vw}#dxf-name{overflow-wrap:anywhere}.dxf-unit-label{display:grid;gap:8px;font-size:13px}#dxf-warnings{font-size:12px;line-height:1.8;padding-left:20px;max-height:190px;overflow:auto;overflow-wrap:anywhere}#dxf-error{color:#ae3a38;font-size:12px}#dxf-error:empty{display:none}
@media(max-width:380px){.file-actions{flex-wrap:wrap;flex-shrink:1}}
#dimension-size-editor label{display:grid;gap:6px;font-size:12px;margin-bottom:14px}
.measurement-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.measurement-heading h2{margin:0}.measurement-heading button{font-size:12px;padding:6px 14px}.measurement-heading button[aria-pressed=true]{background:#bff3e5;color:#17372f}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
#dimension-common-editor{display:flex;align-items:center;gap:12px;font-size:11px}#dimension-common-editor label{display:flex;align-items:center;gap:6px}#dimension-common-height{width:64px;height:30px;padding:4px 6px;font-size:12px}
.statusbar{flex-wrap:wrap;gap:8px 16px;min-height:52px;padding-top:8px;padding-bottom:8px}
@media(min-width:721px){body{grid-template-rows:68px minmax(0,1fr) auto}}
input[aria-invalid=true]{border-color:#bd5555}.live-status{margin:12px 0 0}#circle-live-status{margin:12px 0 0}
#appearance-editor[hidden],#annotation-editor[hidden]{display:none}#appearance-form,#annotation-form{display:grid;gap:12px}#appearance-form label,#annotation-form label{display:grid;gap:6px;font-size:12px}input[type=text],input:not([type]){width:100%;min-width:0;border:1px solid #ced7e1;border-radius:5px;padding:8px;font:inherit}#entity-color{width:100%;height:36px;border:1px solid #ced7e1;background:white}#shortcut-rows{display:grid;gap:9px;max-height:52vh;overflow:auto}#shortcut-rows label{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:12px}#shortcuts-error{color:#b02828}#shortcuts-open{font-size:12px;padding:7px}#shortcuts-dialog button{margin-top:12px}#appearance-form .muted,#annotation-form .muted{margin:0}#appearance-form .primary,#annotation-form .primary{margin-top:0}
#corner-panel[hidden],#corner-second-row[hidden]{display:none}#corner-panel label{display:block;margin-bottom:8px}#corner-panel input{margin-bottom:16px}#corner-panel .primary{width:100%}
#circle-editor[hidden]{display:none}#circle-edit-form{display:grid;gap:10px}#circle-edit-form label{font-size:12px}
#offset-panel[hidden],#numeric-panel[hidden]{display:none}#offset-panel label{display:block;margin-bottom:8px}#offset-panel input{margin-bottom:16px}
.document-title{display:flex;align-items:center;gap:4px;border-left:1px solid #c8d0d9;padding-left:20px;min-width:0}.document-title #filename{border:0;padding:0;min-width:0}.document-title #dirty{margin:0}
@media(min-width:1051px){.document-title{min-width:175px}}
@media(max-width:720px){.document-title{padding-left:12px;flex:1}}
@media(min-width:1051px){body{grid-template-rows:68px minmax(0,1fr) auto}.brand{font-size:26px;gap:20px}.toolbar button{font-size:16px}.toolbar .icon{width:23px;height:23px}#filename{font-size:16px;min-width:175px}.tools button{font-size:17px;padding:18px 14px}.tool-utilities button{font-size:12px;padding:9px 14px}.inspector h1{font-size:20px}.inspector h2{font-size:17px}#numeric-form label{font-size:14px}input[type=number],select{font-size:15px;height:40px}.dimension-kind{font-size:13px}dl{font-size:13px}.statusbar{font-size:14px}.statusbar button{font-size:14px}}
@media(max-width:1050px){.toolbar{padding:0 16px;gap:12px}.brand{font-size:20px}.file-actions{margin-left:0}.workspace{grid-template-columns:130px minmax(0,1fr) 270px}.tools{padding:12px 6px}.tools button{font-size:13px;gap:10px;padding:12px 10px}.statusbar{gap:12px;padding:0 16px}.statusbar>span:not(:first-child){padding-left:12px}#count{display:none}.inspector{padding:16px}}
@media(max-width:720px){body{height:auto;min-height:100dvh;grid-template-rows:auto auto auto;overflow:auto}.toolbar{flex-wrap:wrap;padding:10px 12px;gap:10px}.brand{font-size:19px}#filename{font-size:12px}.file-actions{order:3;width:auto;gap:5px}.file-actions button{font-size:11px;padding:6px 10px}.file-actions .icon{width:16px;height:16px}.history-actions{margin-left:auto;padding-left:0;border:0;gap:0}.history-actions button{padding:6px}.workspace{grid-template-columns:52px minmax(0,1fr);grid-template-rows:470px auto;overflow:visible}.tools{grid-row:1;padding:8px 4px;overflow:auto}.tools button{justify-content:center;padding:11px 5px;gap:0}.tools button span,.version{display:none}.tools .icon{width:23px;height:23px}.tool-utilities{margin-top:8px}.tool-utilities button{padding:10px 5px;font-size:0}.inspector{grid-column:1/-1;border-left:0;border-top:1px solid var(--border);display:grid;grid-template-columns:1fr;gap:0;overflow:visible}.inspector section{padding:16px 0}.properties{min-height:0}.statusbar{flex-wrap:wrap;gap:8px 16px;font-size:10px;padding:9px 12px}.statusbar>span:not(:first-child){border:0;padding:0}.statusbar button{font-size:10px}.prompt{left:8px;top:8px;font-size:10px;gap:7px;padding:6px;max-width:calc(100% - 16px)}.view-controls{bottom:10px;right:10px}#notice{bottom:30px}.tool-utilities button .icon{width:18px}}