:root{font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;color:#293d3d;background:#f5f4ee;font-synthesis:none;--green:#345b4c;--muted:#78847e}*{box-sizing:border-box}body{margin:0}button,select{font:inherit}button{cursor:pointer;border:1px solid #d9dfd7;background:#fffefb;color:inherit;border-radius:7px;padding:10px 14px;min-height:42px;transition:background .15s}button:hover{background:#e8eee5}button:disabled{opacity:.38;cursor:default}button:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #9252dd;outline-offset:3px}header{height:88px;display:flex;align-items:center;justify-content:space-between;padding:0 32px;border-bottom:1px solid #dfE3d9}.brand{display:flex;align-items:center;gap:12px}.brand>svg{width:43px;height:43px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:700;color:#77887a}h1{font-size:20px;letter-spacing:.03em;margin:5px 0 0;font-weight:650}header button{background:transparent;border:0;font-size:13px}header button span{border:1px solid #acb9ae;border-radius:50%;display:inline-grid;place-items:center;width:19px;height:19px;margin-left:8px}main{max-width:1920px;margin:auto;padding:18px 28px 0}.toolbar{display:flex;align-items:center;gap:24px;min-height:48px;margin-bottom:15px}.segmented{display:flex;padding:4px;border:1px solid #dbe0d6;border-radius:9px;background:#e9ede4}.segmented button{border:0;background:none;min-height:36px;padding:8px 20px;font-size:13px}.segmented button.active{background:#fffefb;box-shadow:0 1px 4px #203d2512;color:var(--green);font-weight:700}.display-options{display:flex;gap:18px;font-size:12px}.display-options label{display:flex;align-items:center;gap:6px;cursor:pointer}input{accent-color:var(--green);width:16px;height:16px}.actions{margin-left:auto;display:flex;gap:6px}.actions button{font-size:12px}.dark{background:#345b4c;color:white;border-color:#345b4c}.dark:hover{background:#27483c}.workspace{position:relative;height:calc(100dvh - 365px);min-height:350px;border:1px solid #d8dfd3;border-radius:12px;overflow:hidden;background-color:#fbfcf8;background-image:radial-gradient(#bfcbb5 1px,transparent 1px);background-size:22px 22px}#board{width:100%;height:100%;display:block;touch-action:none;user-select:none;-webkit-user-select:none}.canvas-heading{position:absolute;top:19px;left:22px;display:flex;align-items:center;gap:8px;font-size:10px;letter-spacing:1px;pointer-events:none;color:#6c7d70}.live-dot{width:6px;height:6px;background:#708b64;border-radius:50%}.canvas-sub{margin-left:10px;color:#9aa591;letter-spacing:0}.stats{position:absolute;left:18px;bottom:19px;display:flex;align-items:center;gap:16px;background:#fffef9ed;border:1px solid #e0e5da;padding:11px 15px;border-radius:9px;font-size:11px;pointer-events:none}.stats>strong{font-family:Georgia,serif;font-size:30px;font-weight:400;padding-right:14px;border-right:1px solid #e4e6dc;line-height:1}.stats strong span{font:11px sans-serif;margin-left:4px}.stats b{margin-left:6px;font-weight:600}.stat-dot{display:inline-block;width:8px;height:8px;border-radius:2px;margin-right:5px}.warm{background:#edb865}.cool{background:#8dbfca}.ratio{border-left:1px solid #e4e6dc;padding-left:14px}.ratio small{display:block;font-size:9px;color:#8c9789;margin-top:4px}.view-tools{position:absolute;right:17px;bottom:19px;display:flex;align-items:center;gap:2px;background:#fffefb;border:1px solid #dfe4d8;border-radius:8px;padding:4px}.view-tools button{border:0;padding:7px 10px;font-size:12px;min-width:38px;min-height:36px}.view-tools span{font-size:10px;min-width:42px;text-align:center}.view-tools i{height:18px;border-left:1px solid #dfe4d8;margin:0 3px}.pan-hint{position:absolute;right:20px;top:19px;font-size:10px;color:#93a08c;pointer-events:none}.empty-note{position:absolute;left:50%;top:48%;transform:translate(-50%,-50%);font-size:14px;color:#819177;text-align:center;pointer-events:none;width:80%}.tray{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:17px 20px 13px;background:#fffefb;border:1px solid #dfe4d8;border-radius:12px;margin-top:12px;min-height:153px}.tray h2{font-size:16px;margin:8px 0}.tray p{font-size:11px;line-height:1.7;color:#7b887c;margin:5px 0}.tile-options{display:flex;gap:30px}.tile-option{display:flex;align-items:center;gap:6px}.tile-option>svg{width:145px;height:110px;overflow:visible}.tile-option b{font-size:12px;white-space:nowrap}.tile-option small{display:block;font-size:10px;color:#8b9589;margin-top:6px}.preview-action{width:240px}.preview-action>p{min-height:30px}.primary{background:var(--green);color:white;border:0;font-size:13px;font-weight:600;width:100%}.primary:hover{background:#26493c}.quiet{display:block;font-size:10px;border:0;background:none;margin:4px auto 0;padding:2px;min-height:22px}footer{display:flex;justify-content:space-between;align-items:center;font-size:10px;color:#8b9787;padding:11px 2px}footer button{background:none;border:0;padding:2px 0;min-height:24px;font-size:10px;color:#617b65;text-decoration:underline;text-underline-offset:4px}.edge-hit{cursor:pointer;fill:none;stroke:transparent;stroke-width:.20;pointer-events:stroke}.edge-hit:hover,.edge-hit:focus{stroke:#8d54d777;outline:none}.edge-index{font:bold .12px sans-serif;fill:#384f48;pointer-events:none}.edge-number{cursor:pointer}.edge-number circle{fill:#fffefb;stroke:#8ca597;stroke-width:.009}.edge-number:focus{outline:none}.edge-number:focus circle,.edge-number:hover circle{stroke:#8e4ed7;stroke-width:.025}.selected-line{pointer-events:none;stroke:#8750ce;stroke-width:.05;fill:none;stroke-linecap:round}.latest-marker{fill:#345b4c;stroke:#fff;stroke-width:.012}dialog{border:1px solid #d8dfd3;border-radius:16px;box-shadow:0 25px 100px #20392f33;padding:35px;max-width:560px;width:calc(100% - 32px);color:#344a40;background:#fffefb}dialog::backdrop{background:#223c3355;backdrop-filter:blur(3px)}dialog h2{font-size:22px;margin:12px 0 24px}dialog h3{font-size:15px}dialog p,dialog li{font-size:13px;line-height:1.9}dialog ol{padding-left:20px}dialog li{padding-left:3px;margin:9px 0}dialog .close{position:absolute;right:12px;top:10px;border:0;background:none;font-size:23px}dialog a{color:#345b4c}.source{font-size:11px!important}select{margin:0 0 20px 12px;padding:9px;border:1px solid #ccd5c8;border-radius:6px;background:white}.error{color:#bd3a42!important}
@media(min-width:1500px){.tile-option>svg{width:180px}.tray{padding-left:30px;padding-right:30px}}
@media(max-width:1100px){header{padding:0 20px}main{padding:14px 16px 0}.toolbar{gap:12px}.display-options{gap:8px}.actions button{padding:8px 10px}.tile-options{gap:12px}.tile-option{display:block;text-align:center}.tile-option>svg{width:130px;height:86px}.tile-option small{display:inline;margin-left:6px}.tray{gap:12px}.tray-instruction{max-width:210px}.preview-action{width:210px}.canvas-sub{display:none}}
@media(max-width:720px){header{height:74px;padding:0 14px}h1{font-size:15px}.eyebrow{font-size:8px}.brand{gap:5px}.brand>svg{width:32px}.toolbar{flex-wrap:wrap;gap:8px;margin-bottom:9px}.segmented button{padding:7px 14px}.display-options{margin-left:auto;font-size:10px}.actions{margin:0;width:100%;justify-content:flex-end}.actions button{font-size:11px;min-height:36px}.actions #undo{margin-right:0}.actions #save{margin-left:auto}.workspace{height:calc(100dvh - 434px);min-height:300px}.canvas-heading{top:13px;left:13px;font-size:9px}.pan-hint{display:none}.stats{left:9px;bottom:60px;padding:7px 10px;gap:10px;font-size:10px}.stats>strong{font-size:23px;padding-right:9px}.ratio{padding-left:9px}.ratio small{font-size:8px}.view-tools{right:9px;bottom:9px}.tray{padding:11px;display:grid;grid-template-columns:1fr 1fr;gap:6px}.tray-instruction{max-width:none}.tray h2{font-size:13px;margin:5px 0}.tray p{font-size:10px}.tray-instruction p{max-width:160px}.tile-options{grid-column:2;grid-row:1/3;gap:4px}.tile-option>svg{width:90px;height:85px}.tile-option b{font-size:10px}.tile-option small{font-size:8px;display:block;margin:3px 0 0}.preview-action{width:100%;grid-column:1}.preview-action>p{min-height:0;margin:2px 0}.primary{min-height:40px;font-size:11px}.tray-instruction>.eyebrow{display:none}.quiet{font-size:9px}.empty-note{font-size:12px}footer{font-size:9px;gap:12px}footer>span{max-width:52%;line-height:1.6}footer button{font-size:9px;white-space:nowrap}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

[hidden]{display:none!important}

.edge-buttons{display:none;gap:3px;justify-content:center;margin-top:6px}.edge-buttons button{padding:4px;min-width:36px;min-height:44px;font-size:15px}
@media(pointer:coarse),(max-width:720px){.edge-buttons{display:flex}.tile-option{display:block;text-align:center}.tile-options{gap:12px}}
@media(max-width:720px){.tray{grid-template-columns:1fr 1fr}.tray-instruction{grid-row:1;grid-column:1}.preview-action{grid-row:1;grid-column:2}.tile-options{grid-row:2;grid-column:1/3;justify-content:space-evenly}.tile-option>svg{width:130px;height:90px}.tile-option small{display:inline;margin-left:5px}.tray h2{font-size:12px}.edge-buttons button{min-width:32px}.workspace{height:calc(100dvh - 500px);min-height:300px}}
/* v2: retain the original palette and layout, with compact secondary controls. */
.toolbar{flex-wrap:wrap;gap:10px 16px}.display-options{flex-wrap:wrap;gap:5px 12px}.actions{flex-shrink:0}.toolbar .display-options label{min-height:30px}#deleteMode.active{background:#f7dedf;border-color:#bd5360;color:#a72b39}.deleting{cursor:grab}.deleting:active{cursor:grabbing}.deleting [data-action="delete"]{cursor:pointer}.violation-count{position:absolute;top:42px;left:16px;color:#b02f3d;background:#fff5f3ed;border-color:#efc8c8;font-size:11px;min-height:32px;padding:6px 10px}.availability-legend{position:absolute;right:16px;top:45px;font-size:10px;color:#477151;text-align:right;background:#fffef9ed;padding:6px 9px;border-radius:6px;pointer-events:none}.availability-legend small{font-size:9px;color:#78847e}.preview-action{min-height:64px}.preview-action>p{font-size:12px}.edge-buttons [aria-pressed="true"]{background:#e8d9f8;border-color:#8750ce}.violation-hit:hover,.violation-hit:focus{stroke:#c42d3c44}
@media(max-width:720px){.display-options{width:100%;margin-left:0;gap:2px 10px}.toolbar{gap:4px}.toolbar .display-options label{min-height:26px}.actions{gap:4px}.actions button{padding:6px 8px}.workspace{min-height:315px;height:calc(100dvh - 540px)}.availability-legend{top:79px;left:12px;right:auto;text-align:left;max-width:calc(100% - 24px)}.violation-count{top:36px;left:12px}.preview-action{min-height:50px}.tray-instruction p{max-width:155px}.preview-action>p{font-size:10px}.canvas-heading{font-size:8px}.stats{gap:7px;padding:7px}.ratio{padding-left:7px}}

/* Screen-space dashes remain legible at every camera zoom. PNG uses render.js units. */
#world [data-rhomb-outline]{vector-effect:non-scaling-stroke;stroke-width:1.4px;stroke-dasharray:5 3;pointer-events:none}
.display-options label:has(input:disabled){opacity:.45;cursor:default}