:root{--paper:#efede5;--panel:#faf9f3;--sheet:#f7f5ee;--ink:#293d35;--muted:#6f776c;--line:#d8dcd0;--accent:#ac5034;--field:#f0f1e9;--drawer:354px;--masthead:88px;--library:76px}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif}
button,input,select{font:inherit;color:inherit}button{cursor:pointer}a{color:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
button:disabled{opacity:.42;cursor:default}[hidden]{display:none!important}
main{min-height:100dvh}
/* The masthead belongs to the studio, rather than the settings drawer. */
.site-header{position:fixed;inset:0 0 auto;height:var(--masthead);z-index:1100;display:flex;align-items:center;gap:28px;padding:0 28px;background:var(--panel);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex-shrink:0}
.brand-mark{width:30px;height:30px;fill:none;stroke:var(--ink);stroke-width:1.25}
.brand>span{font:30px/.95 Georgia,'Times New Roman',serif;letter-spacing:-1.2px}
.brand small{display:block;font:9px/1.4 Arial,sans-serif;letter-spacing:.7px;margin-top:7px;color:var(--muted)}
#about{margin-left:auto;display:flex;align-items:center;gap:18px;border:0;background:none;padding:10px 0 10px 14px;font-size:11px;color:var(--muted)}
#about svg{width:14px;height:14px;fill:none;stroke:var(--accent);stroke-width:1.2}
#category-nav{display:flex;align-items:center;gap:4px;margin-left:auto;height:100%}
#category-nav button{height:100%;border:0;border-bottom:3px solid transparent;background:none;padding:3px 17px 0;font-size:12px;white-space:nowrap;transition:background .15s}
.category-number{font:9px 'Courier New',monospace;color:var(--muted);margin-right:9px}
#category-nav button[aria-pressed=true]{border-bottom-color:var(--accent);color:var(--accent);background:#ac503407}
#category-nav button[aria-pressed=true] .category-number{color:var(--accent)}
#category-nav button:hover{background:#293d3506}
/* An open shelf of tools sits immediately above the drawing sheet. */
.catalog{position:fixed;left:28px;right:calc(var(--drawer) + 52px);top:var(--masthead);height:var(--library);display:flex;align-items:center;gap:24px;z-index:2}
.library-label{display:flex;flex-direction:column;gap:6px;flex-shrink:0}
.eyebrow{font:9px/1.3 Arial,sans-serif;letter-spacing:1.3px;text-transform:uppercase;color:var(--muted)}
#catalog-count{font:9px 'Courier New',monospace;color:var(--muted)}
.element-nav{display:flex;align-items:stretch;gap:4px;min-width:0;overflow-x:auto;scrollbar-width:thin;padding:5px 0}
.element-nav button{display:flex;align-items:center;gap:7px;flex-shrink:0;min-height:40px;padding:7px 11px;border:1px solid transparent;background:none;border-radius:3px;font-size:11px;white-space:nowrap}
.element-nav svg{width:19px;height:21px;fill:none;stroke:currentColor;stroke-width:1.1;stroke-linecap:round;stroke-linejoin:round}
.element-nav button[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:var(--panel)}
.element-nav button:hover:not([aria-pressed=true]){border-color:#c4cbbd;background:#faf9f36b}
/* A working sheet, with registration corners rather than imitation scale rulers. */
.workspace{position:fixed;left:24px;right:calc(var(--drawer) + 48px);top:calc(var(--masthead) + var(--library));bottom:24px;display:flex;flex-direction:column;min-height:0;padding:17px 20px 14px;background:var(--sheet);border:1px solid #dde0d4;border-radius:2px;overflow:hidden}
.workspace:after{content:'';position:absolute;inset:8px;pointer-events:none;z-index:701;background:linear-gradient(var(--muted),var(--muted)) left top/9px 1px no-repeat,linear-gradient(var(--muted),var(--muted)) left top/1px 9px no-repeat,linear-gradient(var(--muted),var(--muted)) right top/9px 1px no-repeat,linear-gradient(var(--muted),var(--muted)) right top/1px 9px no-repeat,linear-gradient(var(--muted),var(--muted)) left bottom/9px 1px no-repeat,linear-gradient(var(--muted),var(--muted)) left bottom/1px 9px no-repeat,linear-gradient(var(--muted),var(--muted)) right bottom/9px 1px no-repeat,linear-gradient(var(--muted),var(--muted)) right bottom/1px 9px no-repeat;opacity:.28}
.toolbar{position:relative;display:flex;align-items:center;gap:12px;color:var(--muted);font-size:10px;min-height:25px;z-index:1}
.tag{font:9px 'Courier New',monospace;letter-spacing:1px;border-right:1px solid var(--line);padding-right:12px}
.toolbar button{display:inline-flex;align-items:center;gap:6px;margin-left:auto;flex-shrink:0;background:none;border:0;padding:6px 0 6px 10px;font-size:10px;color:var(--muted)}
.toolbar button svg{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:1.1}
#preview{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;padding:24px 12px}
#preview svg{display:block;width:100%;max-height:100%;overflow:visible}
body:not(.terrain-active) #preview polygon,body:not(.terrain-active) #preview polyline{vector-effect:non-scaling-stroke;stroke-width:var(--preview-stroke,.8px)}
.canvas-note{display:flex;align-items:center;justify-content:space-between;gap:20px;font:9px/1.5 'Courier New',monospace;color:var(--muted);border-top:1px solid var(--line);padding-top:10px;min-height:25px}
/* The docked drawer is a calm, consistent instrument panel. */
aside{position:fixed;z-index:2;right:24px;top:calc(var(--masthead) + 24px);bottom:24px;width:var(--drawer);display:flex;flex-direction:column;overflow:hidden;border:1px solid #d2d8cb;border-top:3px solid var(--ink);border-radius:2px;background:var(--panel);box-shadow:0 3px 6px #293d3504}
.drawer-heading{display:flex;align-items:center;justify-content:space-between;padding:17px 20px 11px;gap:12px;flex-shrink:0}
.drawer-heading .eyebrow:last-child{color:var(--accent)}
.panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 20px 19px;flex-shrink:0}
.panel-top h1{font:29px/1.1 Georgia,'Times New Roman',serif;letter-spacing:-.8px;font-weight:normal;margin:0;min-width:0}
.units-label{display:flex;flex-direction:column;align-items:flex-end;gap:4px;flex-shrink:0;font-size:8px;text-transform:uppercase;letter-spacing:1.1px;color:var(--muted)}
select{border:0;border-bottom:1px solid #cbd1c3;border-radius:0;background:var(--field);padding:9px 8px;font-size:11px;color:var(--ink);min-width:0;max-width:100%}
.panel-top select{padding:6px 5px;max-width:112px;font-size:10px;text-transform:none;letter-spacing:0}
#controls{display:flex;flex-direction:column;flex:1;min-height:0}
.control-scroll{overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;min-height:0;flex:1;padding:0 20px 20px;scrollbar-width:thin;scrollbar-color:#c9d0c1 transparent;scrollbar-gutter:stable}
.control-section{display:flex;flex-direction:column;min-width:0;width:100%;border-top:1px solid var(--line);padding:16px 0 18px}
.control-section>div{min-width:0;width:100%}
.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;min-width:0;width:100%;font:18px/1.3 Georgia,'Times New Roman',serif;letter-spacing:-.2px;font-weight:normal;margin:0 0 16px;flex-shrink:0}
.section-heading button{flex-shrink:0;background:none;border:0;font:9px Arial;color:var(--muted);padding:5px 0 5px 10px}
.control{display:grid;grid-template-columns:minmax(0,1fr) 72px 66px;gap:10px;align-items:center;margin-bottom:14px;font-size:11px;min-width:0}
.control:last-child{margin-bottom:0}.control label{min-width:0;line-height:1.4;overflow-wrap:break-word}
.number-wrap{display:flex;align-items:center;gap:3px;min-width:0;background:var(--field);border-bottom:1px solid #cbd1c3;padding-right:6px}
.number-wrap input{width:46px;min-width:0;border:0;background:none;padding:8px 0 8px 3px;text-align:right;font:11px 'Courier New',monospace}
.unit{font-size:9px;color:var(--muted)}
input[type=range]{appearance:none;width:100%;height:24px;background:linear-gradient(#bfc7b8,#bfc7b8) center/100% 2px no-repeat;accent-color:var(--accent);cursor:pointer;margin:0}
input[type=range]::-webkit-slider-thumb{appearance:none;border:2px solid var(--panel);width:14px;height:14px;background:var(--accent);border-radius:50%;box-shadow:0 0 0 1px var(--accent)}
input[type=range]::-moz-range-thumb{border:2px solid var(--panel);width:10px;height:10px;background:var(--accent);border-radius:50%;box-shadow:0 0 0 1px var(--accent)}
input[type=color]{border:1px solid var(--line);background:var(--field);width:48px;height:29px;padding:3px}
.select-row{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:11px;min-width:0;margin-bottom:13px}
.select-row select{max-width:177px;flex-shrink:1;min-width:0}
.check{display:flex;align-items:center;gap:7px;font:11px/1.4 Arial;margin:12px 0}.details-toggle{margin:0 0 15px}
input[type=checkbox]{accent-color:var(--accent);width:13px;height:13px;flex-shrink:0}
.shuffle,.download{width:100%;padding:12px 11px;border-radius:2px;font-size:11px}
.shuffle{background:none;border:1px solid #b7c2ad;color:var(--ink)}.shuffle:hover{background:#293d3505;border-color:var(--ink)}
.quantity-fields{padding:0 20px 18px;flex-shrink:0}.quantity-fields .control{grid-template-columns:1fr 84px 66px;margin:0}.quantity-fields label{font-size:12px}.quantity-fields .number-wrap input{font-size:15px;font-weight:bold;padding:9px 0}.quantity-fields .unit{display:none}
.export{border-top:1px solid #ccd2c4;padding:15px 20px 12px;flex-shrink:0;background:#f2f2e9}
.export-options>label:first-child{display:flex;align-items:center;justify-content:space-between;gap:12px;font:9px Arial;text-transform:uppercase;letter-spacing:1px;margin-bottom:12px}
.export select{max-width:216px;background:var(--panel);font-size:10px;text-transform:none;letter-spacing:0;padding:8px}
.download{background:var(--accent);border:1px solid var(--accent);color:#fffdf8;min-height:43px;letter-spacing:.3px;font-size:12px}
.download:hover{background:#92402a;border-color:#92402a}.download:disabled{background:#8f9989;border-color:#8f9989}
.panel-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:12px;font:9px Arial;color:var(--muted)}
.panel-meta span{color:var(--ink)}.panel-meta i{font:italic 9px Georgia;color:var(--muted);margin-left:5px}
.panel-meta button{background:none;border:0;padding:0;font:9px Arial;color:var(--muted)}
#status{font:9px/1.5 Arial;color:var(--muted);min-height:14px;margin:8px 0 0;text-align:left;overflow-wrap:anywhere}
dialog{background:var(--panel);border:1px solid var(--line);border-top:3px solid var(--ink);border-radius:2px;max-width:480px;padding:28px;line-height:1.6}dialog::backdrop{background:#293d3566}dialog h2{font:32px Georgia;font-weight:normal}dialog p{font-size:13px}#close-about{float:right;border:0;background:none;font-size:25px}
/* Map and geographic controls share the same sheet and drawer. */
#world-map{position:absolute;inset:0;z-index:0;background:#e5e2d9;font-family:Arial,sans-serif}
.terrain-active aside{z-index:1000}.terrain-active .toolbar,.terrain-active .canvas-note{position:relative;z-index:700;pointer-events:none;background:#faf9f3ed;padding:7px 8px;border:0}
.terrain-active .toolbar button{pointer-events:auto}.terrain-active .canvas-note{margin-top:auto}.terrain-active #preview{position:relative;z-index:1}
#world-map .leaflet-top.leaflet-right{top:46px}
#world-map .leaflet-control-attribution{font-size:9px;max-width:90%}
.terrain-number{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:11px;margin-bottom:14px}
.terrain-number span{white-space:nowrap;font:10px Arial;color:var(--muted)}.terrain-number input{width:95px;min-width:0;border:0;border-bottom:1px solid #cbd1c3;background:var(--field);padding:9px;text-align:right;font:12px 'Courier New',monospace}
.terrain-help{font:10px/1.6 Arial;color:var(--muted);margin:0 0 13px;overflow-wrap:anywhere}.terrain-help a{color:var(--accent)}
.terrain-label{display:block;font:9px Arial;color:var(--muted);margin-bottom:7px}.terrain-coordinate-row{display:flex;gap:6px}.terrain-coordinate-row input{min-width:0;width:100%;border:0;border-bottom:1px solid #cbd1c3;background:var(--field);padding:10px 8px;font:11px 'Courier New',monospace}
.terrain-coordinate-row button,.terrain-views button{border:1px solid #cbd1c3;border-radius:2px;background:none;padding:8px 10px;font:10px Arial}.terrain-views{display:flex;gap:6px;margin:0 0 13px}.terrain-views button{flex:1}.terrain-views button[aria-pressed=true]{background:var(--ink);color:var(--panel);border-color:var(--ink)}
.site-layer-check{margin:4px 0 6px;font-size:11px}.site-layer-check span{border-left:3px solid var(--layer-color,#827c71);padding-left:7px}.site-layer-row{margin-bottom:12px}.site-layer-row .layer-status{margin:0 0 0 24px;font-size:9px;line-height:1.5}.layer-status[data-status=error],.layer-status[data-status=limited]{color:var(--accent)}
.parcel-import{display:flex;gap:6px;margin:6px 0 8px 24px}.parcel-import button{font:9px Arial;padding:6px 8px;border:1px solid var(--line);background:none;border-radius:2px}#section-draw{margin-bottom:10px}
@media(min-width:1700px){:root{--drawer:376px}.site-header{padding-left:36px;padding-right:36px}.workspace{left:36px;right:calc(var(--drawer) + 72px);bottom:32px}.catalog{left:40px;right:calc(var(--drawer) + 76px)}aside{right:32px;bottom:32px}.control-scroll{padding-left:24px;padding-right:24px}}
@media(min-width:961px) and (max-width:1190px){.site-header{gap:12px;padding:0 24px}.brand>span{font-size:27px}.brand-mark{width:25px;height:25px}#category-nav button{padding-left:11px;padding-right:11px;font-size:11px}.category-number{margin-right:5px}.catalog{gap:10px}.library-label{display:none}.element-nav button{padding-left:8px;padding-right:8px}}
@media(min-width:961px) and (max-height:740px){:root{--masthead:74px;--library:62px}.drawer-heading{padding-top:12px;padding-bottom:8px}.panel-top{padding-bottom:13px}.panel-top h1{font-size:25px}.control-section{padding-top:12px;padding-bottom:14px}.export{padding-top:11px;padding-bottom:10px}aside{top:calc(var(--masthead) + 16px);bottom:16px}.workspace{bottom:16px}}
@media(max-width:960px){
 :root{--masthead:124px;--library:66px}
 .site-header{position:sticky;top:0;height:var(--masthead);display:grid;grid-template-columns:1fr auto;grid-template-rows:73px 51px;gap:0;padding:0 20px}
 .brand{grid-area:1/1;gap:10px}.brand>span{font-size:29px}.brand small{font-size:8px;margin-top:5px}.brand-mark{width:26px;height:26px}#about{grid-area:1/2;font-size:10px;gap:12px}
 #category-nav{grid-area:2/1/3/3;justify-content:space-between;width:100%;margin:0}#category-nav button{padding:0 10px;font-size:11px;flex:1}.category-number{margin-right:6px;font-size:8px}
 .catalog{position:relative;inset:auto;height:var(--library);width:calc(100% - 40px);margin:0 20px;gap:14px}.library-label{display:none}.element-nav{width:100%}.element-nav button{flex:1;justify-content:center;min-width:max-content;gap:7px;padding:8px 13px}
 .workspace{position:relative;inset:auto;width:calc(100% - 32px);height:44dvh;min-height:300px;margin:0 16px 16px;padding:13px 16px 12px}
 #preview{padding:18px 4px}.toolbar{font-size:9px;gap:9px}.tag{font-size:8px;padding-right:9px}.toolbar button{font-size:9px}.canvas-note{font-size:8px;gap:9px}
 aside{position:relative;inset:auto;width:calc(100% - 32px);margin:0 16px 16px;overflow:visible;max-height:none;box-shadow:none}.drawer-heading{padding:16px 20px 10px}.panel-top{padding-bottom:17px}.panel-top h1{font-size:28px}
 #controls{min-height:0}.control-scroll{overflow:visible;min-height:0;padding:0 20px 18px}.control{grid-template-columns:minmax(0,1fr) minmax(80px,32%) 72px;font-size:12px;gap:12px}.number-wrap input{width:51px;font-size:12px}.select-row{font-size:12px}.select-row select{max-width:60%}.section-heading{font-size:20px}
 .export{position:sticky;bottom:0;z-index:1001;padding:14px 20px 12px;box-shadow:0 -4px 12px #293d3508}.export select{max-width:70%}.download{min-height:46px}
 .terrain-active .workspace{height:47dvh;min-height:320px}.terrain-active .canvas-note{font-size:8px;margin-bottom:4px;flex-wrap:wrap;gap:0 14px}.terrain-active .toolbar{margin-right:0}#world-map .leaflet-top.leaflet-right{top:45px}#world-map .leaflet-control-attribution{font-size:8px}
 .terrain-number{font-size:12px}.terrain-help{font-size:11px}.site-layer-check{font-size:12px}.site-layer-row .layer-status{font-size:10px}
}
@media(max-width:520px){.category-number{display:none}.site-header{padding:0 16px}#category-nav button{font-size:10px;padding:0 5px}.catalog{width:calc(100% - 32px);margin:0 16px}.element-nav button{flex:0 0 auto;padding:8px 13px}.element-nav svg{width:16px;height:19px}.brand small{letter-spacing:.4px}.brand>span{font-size:28px}.workspace{padding-left:13px;padding-right:13px}.canvas-note{flex-wrap:wrap;gap:0 10px}.panel-meta i{margin-left:4px}.terrain-active .toolbar{font-size:8px}.terrain-active #style-label{max-width:140px}.terrain-active .toolbar button{font-size:8px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
/* Numeric values retain their full width; the adjacent sliders provide stepping. */
input[type=number]{appearance:textfield;-moz-appearance:textfield}
input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{appearance:none;-webkit-appearance:none;margin:0}

.panel-meta .copyright{display:block;margin-top:5px;font:8px Arial;color:var(--muted);line-height:1.4}
.panel-meta{align-items:flex-start}