:root {
  --font-ui:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --text-scale:1;
  --text-xs:calc(12px * var(--text-scale));
  --text-sm:calc(13px * var(--text-scale));
  --text-md:calc(14px * var(--text-scale));
  --text-lg:calc(16px * var(--text-scale));
  --text-xl:calc(20px * var(--text-scale));
  --text-title:calc(27px * var(--text-scale));
  --ink:#252d3d;--muted:#566278;--panel:#fff;--surface:#f4f6fa;--hover:#e9edf5;
  --line:#c8d0df;--control-line:#8795ab;--accent:#623bb0;--accent-hover:#4d288f;
  --accent-soft:#eee7fa;--accent-line:#baa5df;--on-accent:#fff;
  --success:#236644;--success-soft:#eaf5ee;--warning:#85500e;--warning-soft:#fff2df;
  --danger:#ac2e49;--danger-soft:#fff0f3;--viewport-fog:#f0f3f7;
  --overlay-shadow:#24344b14;--scrim:#14203955;
  font:400 var(--text-md)/1.5 var(--font-ui);font-synthesis:none;
  color:var(--ink);background:var(--surface);color-scheme:light;
}
*{box-sizing:border-box}
body{margin:0;padding-bottom:calc(104px * var(--text-scale) + env(safe-area-inset-bottom,0px))}
button,input,select{font:inherit;line-height:1.4}
button{cursor:pointer;border:0}
button:disabled{opacity:.5;cursor:not-allowed}
button,input,select,a{-webkit-tap-highlight-color:transparent}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
input,select{font-variant-numeric:tabular-nums}
input::placeholder{color:var(--muted);opacity:1}
.hidden{display:none!important}
header{min-height:78px;border-bottom:1px solid var(--line);background:var(--panel);display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 32px}
.brand{text-decoration:none;display:flex;align-items:center;gap:13px;color:var(--ink);flex-shrink:0}
.brand b{letter-spacing:1.8px;font-size:var(--text-lg)}
.brand b span{font-weight:400}
.brand i{height:23px;border-left:1px solid var(--line);margin:0 5px}
.brand .appname{font-size:calc(18px * var(--text-scale));letter-spacing:-.5px}
.brand small{color:var(--muted);border:1px solid var(--line);padding:4px 6px;font-size:var(--text-xs);letter-spacing:.7px}
.logo{font-size:30px;font-weight:800;color:var(--accent);letter-spacing:-8px;margin-right:5px;line-height:1}
.logo span{font-size:20px;color:#c8875b}
.header-right{display:flex;align-items:center;justify-content:flex-end;gap:8px;font-size:var(--text-xs);color:var(--muted);min-width:0}
.local-dot{width:7px;height:7px;flex-shrink:0;background:var(--success);border-radius:50%}
.appearance-button,.icon-btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:36px;border:1px solid var(--control-line);border-radius:6px;background:var(--panel);color:var(--ink);flex-shrink:0}
.appearance-button{padding:7px 11px;font-size:var(--text-sm)}
.appearance-button svg{width:17px;height:17px;color:var(--accent)}
.icon-btn{width:36px;font-size:var(--text-lg)}
.appearance-button:hover,.icon-btn:hover{background:var(--hover)}
main{display:grid;grid-template-columns:calc(340px * var(--text-scale)) minmax(0,1fr);max-width:2100px;margin:auto}
aside{background:var(--panel);border-right:1px solid var(--line);padding:30px 24px 0;min-width:0}
.eyebrow{font-size:var(--text-xs);letter-spacing:1.4px;font-weight:700;color:var(--muted)}
.intro h1{font-size:var(--text-title);line-height:1.3;letter-spacing:-.8px;margin:11px 0}
.intro p{font-size:var(--text-sm);line-height:1.65;color:var(--muted);margin:0 0 28px}
section{padding:22px 0;border-top:1px solid var(--line)}
.section-title{display:flex;align-items:center;gap:10px;margin-bottom:17px}
.section-title>span{color:var(--muted);border:1px solid var(--line);border-radius:50%;font-size:var(--text-xs);min-width:25px;height:25px;display:grid;place-items:center}
.section-title h2{font-size:var(--text-md);line-height:1.5;font-weight:700;margin:0}
.text-btn{background:none;color:var(--accent);font-size:var(--text-xs);margin-left:auto;padding:5px 3px;line-height:1.5;border-radius:4px}
.text-btn:hover{background:var(--accent-soft)}
.upload{border:1px dashed var(--control-line);border-radius:7px;background:var(--surface);padding:17px 8px;display:flex;flex-direction:column;align-items:center;gap:6px;cursor:pointer;text-align:center}
.upload input{position:absolute;opacity:0;width:1px;height:1px}
.upload:focus-within{outline:3px solid var(--accent);outline-offset:3px}
.upload-icon{font-size:26px;line-height:1;color:var(--accent)}
.upload strong{font-size:var(--text-md);font-weight:600;color:var(--ink)}
.upload>span:last-child{font-size:var(--text-xs);color:var(--muted)}
.upload.drag{background:var(--accent-soft);border-color:var(--accent)}
.file-info{display:flex;align-items:center;gap:10px;margin:14px 0}
.file-info>div{min-width:0;flex:1}
.file-info strong{font-size:var(--text-sm);display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-info small{color:var(--muted);display:block;font-size:var(--text-xs);margin-top:4px}
.file-icon{color:var(--accent);background:var(--accent-soft);border-radius:5px;min-width:30px;height:34px;display:grid;place-items:center;font-size:24px}
.tag{font-size:var(--text-xs);color:var(--muted);margin-left:auto}
.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 12px}
.three{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.rotation{margin-top:13px}
label{font-size:var(--text-sm);color:var(--muted);position:relative;display:block;line-height:1.5;min-width:0}
label>span:not(.upload-icon){float:right;font-size:var(--text-xs);color:var(--muted)}
input[type=number],select{display:block;width:100%;min-width:0;border:1px solid var(--control-line);background:var(--panel);border-radius:5px;padding:9px;color:var(--ink);margin-top:6px;font-size:var(--text-md);min-height:calc(39px * var(--text-scale))}
input:focus,select:focus{border-color:var(--accent)}
.wide{margin-bottom:15px}
.wide input[type=range]{display:block;float:none;width:100%;accent-color:var(--accent);margin:14px 0 10px}
.segmented{display:flex;background:var(--surface);padding:4px;border-radius:6px;gap:3px}
.segmented button{flex:1;background:transparent;color:var(--muted);font-size:var(--text-xs);padding:9px 3px;border-radius:4px;line-height:1.5;min-width:0}
.segmented button.active{background:var(--accent-soft);color:var(--accent);box-shadow:0 1px 4px var(--overlay-shadow);font-weight:700}
.field-hint{font-size:var(--text-xs);color:var(--muted);line-height:1.65;margin:10px 0 16px}
.import-workflow{padding:10px 12px;border-left:3px solid var(--accent);border-radius:3px;background:var(--accent-soft);color:var(--ink)}
.sr-only{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.help-field{position:relative;min-width:0}
.help-field label>.field-caption{float:none;display:block;min-height:24px;padding-right:27px;font-size:inherit;color:inherit}
.field-caption>span{float:right;font-size:var(--text-xs);color:var(--muted)}
.field-help-trigger{position:absolute;top:0;right:0;display:grid;place-items:center;width:23px;height:23px;padding:0;border:1px solid var(--control-line);border-radius:50%;background:var(--surface);color:var(--accent);font-size:var(--text-xs);font-weight:700;line-height:1}
.field-help-trigger:hover,.field-help-trigger[aria-expanded=true]{background:var(--accent-soft);border-color:var(--accent)}
.field-tooltip{position:fixed;width:min(calc(330px * var(--text-scale)),calc(100vw - 24px));max-height:calc(100dvh - 24px);overflow-y:auto;padding:16px;border:1px solid var(--accent-line);border-radius:10px;background:var(--panel);color:var(--ink);box-shadow:0 8px 28px var(--overlay-shadow);z-index:30;line-height:1.65}
.field-tooltip[hidden]{display:none}
.field-tooltip>strong{display:block;font-size:var(--text-md);line-height:1.5}
.field-tooltip>p{font-size:var(--text-sm);margin:10px 0 12px}
.field-tooltip>small{display:block;border-top:1px solid var(--line);padding-top:9px;color:var(--accent);font-size:var(--text-xs);font-variant-numeric:tabular-nums;font-weight:600}
.field-help-visual{margin-top:12px;padding:8px;border:1px solid var(--line);border-radius:6px;background:var(--surface)}
.field-help-visual::after{content:'Esquema ilustrativo · sem escala';display:block;text-align:center;margin-top:3px;font-size:var(--text-xs);color:var(--muted)}
.field-help-visual svg{display:block;width:100%;height:auto;overflow:visible;color:var(--accent)}
.field-help-visual text{fill:var(--ink);font:11px var(--font-ui)}
.field-help-visual .help-master{fill:#c8875b;stroke:#704526;stroke-width:1.5}
.field-help-visual .help-shell{fill:#72afa0;stroke:#316d5d;stroke-width:1.5}
.field-help-visual .help-silicone{fill:#d0e9e1;stroke:#82b5a3;stroke-width:1}
.field-help-visual .help-support{fill:#dec780;stroke:#856c2d;stroke-width:1.5}
.field-help-visual .help-cutout{fill:var(--surface);stroke:var(--muted);stroke-width:1}
.field-help-visual .help-highlight{fill:var(--accent);fill-opacity:.55;stroke:var(--accent);stroke-width:2}
.field-help-visual .help-outline{fill:none;stroke:var(--muted);stroke-width:1.5}
.field-help-visual .help-dimension,.field-help-visual .help-flow{fill:none;stroke:var(--accent);stroke-width:2}
.field-help-visual .help-axis-x{fill:none;stroke:var(--axis-x);stroke-width:2}
.field-help-visual .help-axis-y{fill:none;stroke:var(--axis-y);stroke-width:2}
.field-help-visual .help-axis-z{fill:none;stroke:var(--axis-z);stroke-width:2}
.field-help-visual .help-flow{stroke-dasharray:5 5;animation:help-flow .9s linear infinite}
@keyframes help-flow{to{stroke-dashoffset:-20}}
.primary{background:var(--accent);color:var(--on-accent);width:100%;border-radius:5px;padding:12px;text-align:left;font-size:var(--text-md);margin-top:18px;font-weight:600;line-height:1.5}
.primary:hover,.dark-btn:hover{background:var(--accent-hover)}
.primary span{float:right}
.generate-action{position:fixed;right:max(24px,env(safe-area-inset-right,0px));bottom:max(20px,env(safe-area-inset-bottom,0px));width:min(calc(270px * var(--text-scale)),calc(100% - 32px));z-index:8;padding:6px;border:1px solid var(--line);border-radius:10px;background:var(--panel);box-shadow:0 6px 24px var(--overlay-shadow)}
.generate-action .primary{margin:0;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 16px;min-height:52px}
.generate-action .primary span{float:none}
.generate-action svg{width:21px;height:21px;flex-shrink:0}
#hole-field{margin-top:12px}
#split-fields{margin-top:15px}
#split-fields .wide{margin-bottom:13px}
.outline-btn{width:100%;background:var(--surface);border:1px solid var(--control-line);border-radius:5px;color:var(--accent);padding:10px 8px;font-size:var(--text-sm);margin-top:12px;text-align:left;line-height:1.5}
.outline-btn:hover{background:var(--accent-soft)}
.outline-btn.active{background:var(--accent-soft);border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.reset-btn{display:block;margin:0 0 16px;padding:0;text-align:left}
.seal-settings{margin-top:17px;background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:14px 12px 1px}
.seal-heading{font-size:var(--text-sm);font-weight:700;color:var(--ink);margin-bottom:13px}
.seal-settings .field-hint{margin-bottom:11px}
.point-actions{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:6px;margin:12px 0;color:var(--muted);font-size:var(--text-xs)}
.point-actions .text-btn{margin:0}
.point-list{display:flex;flex-direction:column;gap:7px;margin-bottom:14px}
.point-row{display:grid;grid-template-columns:36px 62px minmax(0,1fr) 25px;align-items:center;gap:5px;border:1px solid var(--line);border-radius:5px;padding:7px;background:var(--surface)}
.point-row input,.point-row select{font-size:var(--text-sm);min-height:calc(34px * var(--text-scale));margin:0;padding:6px;width:100%}
.point-row .point-id{border-radius:4px;padding:7px 2px;font-size:var(--text-xs);color:var(--warning);background:var(--warning-soft);border:1px solid var(--warning);font-weight:700}
.point-row .point-id.vent{color:var(--accent);background:var(--accent-soft);border-color:var(--accent)}
.point-delete{background:transparent;color:var(--danger);font-size:22px;min-height:34px}
.point-row.invalid{border-color:var(--danger);background:var(--danger-soft)}
.point-row small{grid-column:1/-1;color:var(--danger);font-size:var(--text-xs);line-height:1.5}
.vent-button{color:var(--accent)}
footer{font-size:var(--text-xs);color:var(--muted);border-top:1px solid var(--line);padding:20px 0;line-height:1.6}
footer span{margin:0 8px}
.workspace{padding:30px clamp(16px,2.4vw,42px) 40px;min-width:0;position:sticky;top:0;align-self:start;container:workspace / inline-size}
.workspace-top{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:23px}
.workspace-top>div:first-child{min-width:0}
.workspace-top h2{font-size:var(--text-xl);letter-spacing:-.5px;margin:7px 0 0;overflow-wrap:anywhere;line-height:1.4}
.ready{display:flex;align-items:center;gap:7px;font-size:var(--text-xs);color:var(--success);background:var(--success-soft);border:1px solid var(--success);border-radius:20px;padding:7px 10px;flex-shrink:0}
.ready span{width:6px;height:6px;border-radius:50%;background:var(--success);flex-shrink:0}
.ready.busy{color:var(--warning);background:var(--warning-soft);border-color:var(--warning)}
.ready.busy span{background:var(--warning)}
.viewer-wrap{position:relative;height:clamp(520px,45vw,660px);min-height:calc(450px * var(--text-scale));border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--viewport-fog);isolation:isolate}
#viewer{position:absolute;inset:0;overflow:hidden}
#viewer canvas{display:block;width:100%;height:100%;outline:none;touch-action:none}
#viewer canvas:focus-visible{outline:3px solid var(--accent);outline-offset:-4px}
.viewport-heading{position:absolute;top:15px;left:16px;right:16px;display:flex;flex-direction:column;align-items:flex-start;gap:12px;pointer-events:none}
.viewport-top{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;width:100%;gap:10px}
.view-label{font-size:var(--text-xs);letter-spacing:.6px;color:var(--muted)}
.view-label i{font-style:normal;margin:0 5px}
.viewport-top>div{display:flex;gap:5px;pointer-events:auto}
.viewport-top button{background:var(--panel);border:1px solid var(--control-line);border-radius:5px;padding:6px 9px;color:var(--ink);font-size:var(--text-lg);min-height:34px}
.viewport-top button:hover{background:var(--hover)}
.viewport-top button span{font-size:var(--text-xs);margin-left:4px}
.legend{display:flex;flex-wrap:wrap;gap:6px 13px;color:var(--muted);font-size:var(--text-xs);line-height:1.5}
.legend span{display:flex;align-items:center;gap:5px}
.legend i{height:8px;width:8px;border-radius:50%;flex-shrink:0}
.orange{background:#c8875b}.teal{background:#4b9c89}.blue{background:#728a9c}.gold{background:#b29a53}.vent-blue{background:#368eba}
.point-toolbar{display:flex;flex-wrap:wrap;gap:4px;background:var(--panel);border:1px solid var(--control-line);border-radius:6px;padding:5px;box-shadow:0 3px 10px var(--overlay-shadow);pointer-events:auto;max-width:100%}
.point-toolbar button{background:transparent;color:var(--muted);font-size:var(--text-xs);padding:7px 9px;border-radius:4px;min-height:32px}
.point-toolbar button:hover{background:var(--hover)}
.point-toolbar button.active{background:var(--accent-soft);color:var(--accent);font-weight:700}
#tool-rotate{display:inline-flex;align-items:center;gap:6px}
#tool-rotate svg{width:18px;height:18px;flex-shrink:0}
#rotate-model kbd{float:right;border:1px solid var(--control-line);border-radius:3px;padding:0 5px;font:inherit}
.rotation-toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:9px 13px;max-width:100%;padding:10px 12px;border:1px solid var(--control-line);border-radius:6px;background:var(--panel);box-shadow:0 3px 10px var(--overlay-shadow);pointer-events:auto;color:var(--ink);font-size:var(--text-xs)}
.rotation-toolbar label{display:flex;align-items:center;gap:8px;font-size:var(--text-xs)}
.rotation-toolbar select{width:auto;min-height:34px;margin:0;padding:5px 7px;font-size:var(--text-xs)}
.rotation-toolbar output{font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.rotation-toolbar p{flex-basis:100%;margin:0;color:var(--muted);line-height:1.6}
.rotation-axes{display:flex;gap:4px}
.rotation-axes span{padding:2px 6px;border:1px solid currentColor;border-radius:3px;font-weight:700}
.axis-x{color:var(--axis-x)}.axis-y{color:var(--axis-y)}.axis-z{color:var(--axis-z)}
#tool-remove.active{background:var(--danger-soft);color:var(--danger)}
.selection-banner{width:100%;background:var(--accent);color:var(--on-accent);border-radius:5px;z-index:3;font-size:var(--text-xs);padding:10px 12px;display:flex;align-items:center;justify-content:space-between;gap:10px;box-shadow:0 5px 20px var(--overlay-shadow);pointer-events:auto;line-height:1.6}
.selection-banner button{background:var(--panel);color:var(--accent);border:1px solid var(--control-line);border-radius:3px;padding:6px 8px;font-size:var(--text-xs);white-space:nowrap}
.selection-active canvas{cursor:crosshair!important}
.viewport-footer{position:absolute;bottom:12px;left:16px;right:16px;display:flex;flex-direction:column;gap:12px;pointer-events:none}
.viewport-bottom{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.view-controls{background:var(--panel);border:1px solid var(--control-line);display:flex;align-items:center;flex-wrap:wrap;gap:8px 12px;border-radius:5px;padding:10px;pointer-events:auto}
.view-controls label{display:flex;align-items:center;gap:5px;font-size:var(--text-xs);color:var(--ink);cursor:pointer}
.view-controls input{accent-color:var(--accent);margin:0;width:15px;height:15px;flex-shrink:0}
.explode-area{display:flex;align-items:center;gap:9px;pointer-events:auto}
.explode-area>input{width:80px;accent-color:var(--accent);margin:0;min-width:45px}
.explode-btn{background:var(--panel);border:1px solid var(--control-line);border-radius:5px;color:var(--accent);padding:8px 10px;font-size:var(--text-xs);white-space:nowrap;min-height:36px}
.explode-btn:hover{background:var(--accent-soft)}
.orbit-hint{text-align:center;color:var(--muted);font-size:var(--text-xs);line-height:1.5}
.loading{position:absolute;inset:0;background:var(--panel);display:flex;align-items:center;justify-content:center;flex-direction:column;gap:14px;color:var(--accent);font-size:var(--text-md);z-index:5;padding:24px;text-align:center}
.loading button{background:var(--surface);padding:8px 16px;border:1px solid var(--control-line);border-radius:4px;color:var(--accent);font-size:var(--text-sm)}
#cancel-task{display:none}
.mesh-progress{font-variant-numeric:tabular-nums}
.mesh-reduced{color:var(--warning)!important}
.summary{display:grid;grid-template-columns:1fr 1fr 1.25fr;margin:24px 0 22px;padding:3px 0;gap:0}
.summary>div{border-right:1px solid var(--line);padding:0 20px;min-width:0}
.summary>div:first-child{padding-left:0}
.summary>div:last-child{border:0;padding-right:0}
.summary small{font-size:var(--text-xs);letter-spacing:.7px;color:var(--muted);font-weight:600;line-height:1.5;display:block}
.summary strong{display:block;font-size:calc(29px * var(--text-scale));letter-spacing:-1px;margin-top:7px;font-weight:600;color:var(--ink);line-height:1.4;overflow-wrap:anywhere}
.summary strong span{font-size:var(--text-lg);color:var(--muted);letter-spacing:0}
.summary p{font-size:var(--text-xs);color:var(--muted);margin:7px 0 0;line-height:1.6}
.summary .mix strong{font-size:calc(22px * var(--text-scale));padding-top:6px}
.summary .mix strong span{font-size:inherit;color:var(--ink);letter-spacing:-.7px}
.mix em{font-size:var(--text-xs);color:var(--muted);font-style:normal;font-weight:400;letter-spacing:0}
.mix b{font-size:var(--text-md);font-weight:400;color:var(--muted);margin:0 6px}
.export-card{display:flex;align-items:center;flex-wrap:wrap;gap:14px;border:1px solid var(--line);border-radius:7px;background:var(--panel);padding:20px}
.export-icon{width:40px;height:42px;border:1px solid var(--line);border-radius:6px;display:grid;place-items:center;font-size:22px;color:var(--accent);flex-shrink:0}
h3{font-size:var(--text-md);margin:0;line-height:1.5}
.export-card p{font-size:var(--text-xs);color:var(--muted);margin:6px 0 0;line-height:1.6}
.dark-btn{background:var(--accent);border-radius:5px;padding:12px 17px;color:var(--on-accent);font-size:var(--text-sm);font-weight:600;line-height:1.5}
.export-card .dark-btn{margin-left:auto}
.dark-btn span{margin-left:14px}
.seal-summary{margin-top:14px;padding:12px 14px;background:var(--success-soft);border:1px solid var(--success);color:var(--success);font-size:var(--text-xs);line-height:1.7;border-radius:5px}
.notice{font-size:var(--text-xs);line-height:1.7;color:var(--muted);padding:14px 1px;max-width:100%}
.notice.warning{color:var(--warning)}
.parts{display:flex;flex-wrap:wrap;gap:8px}
.parts button{background:var(--accent-soft);padding:8px 11px;color:var(--accent);border:1px solid var(--accent-line);border-radius:4px;font-size:var(--text-xs)}
dialog{border:1px solid var(--control-line);border-radius:12px;padding:30px;max-width:560px;width:calc(100% - 24px);max-height:calc(100dvh - 32px);color:var(--ink);background:var(--panel);overflow-y:auto;overscroll-behavior:contain}
dialog::backdrop{background:var(--scrim)}
dialog h2{font-size:var(--text-title);margin:10px 0;line-height:1.4}
dialog li,dialog p{font-size:var(--text-sm);line-height:1.8}
dialog ol{padding-left:20px}
dialog li{margin-bottom:12px}
.close{position:absolute;right:12px;top:10px;background:var(--panel);font-size:26px;color:var(--muted);width:34px;height:34px;border-radius:5px;line-height:1}
.close:hover{background:var(--hover)}
.load-project{margin-top:15px;font-size:var(--text-sm)}
.load-project input{display:block;margin-top:8px;max-width:100%;font-size:var(--text-sm)}
#toast{position:fixed;bottom:calc(104px * var(--text-scale) + env(safe-area-inset-bottom,0px));left:50%;transform:translateX(-50%);padding:13px 22px;border-radius:7px;background:var(--accent);color:var(--on-accent);max-width:90%;font-size:var(--text-sm);line-height:1.6;z-index:10;display:none;box-shadow:0 6px 24px var(--overlay-shadow)}
.appearance-dialog{max-width:660px}
.appearance-dialog .modal-description{margin:0 0 24px;color:var(--muted)}
.appearance-fieldset{padding:0;border:0;min-width:0;margin:0 0 24px}
.appearance-fieldset legend{font-size:var(--text-md);font-weight:700;margin-bottom:12px;color:var(--ink)}
.theme-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.theme-option,.text-size-options>label{position:relative;cursor:pointer;min-width:0}
.theme-option>input,.text-size-options input{position:absolute;opacity:0;width:1px;height:1px}
.theme-card{display:flex;flex-direction:column;border:1px solid var(--control-line);border-radius:9px;padding:12px;gap:9px;height:100%;background:var(--surface)}
.theme-option>input:checked+.theme-card{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent);background:var(--accent-soft)}
.theme-option>input:focus-visible+.theme-card,.text-size-options input:focus-visible+span{outline:3px solid var(--accent);outline-offset:3px}
.theme-swatch{height:42px;display:grid;grid-template-columns:14px 1fr 30px;gap:6px;background:var(--swatch-panel);border:1px solid var(--swatch-line);border-radius:5px;padding:6px}
.theme-swatch>span{background:var(--swatch-surface);border-radius:2px}
.theme-swatch>span:first-child{background:var(--swatch-accent)}
.theme-swatch>span:last-child{border:1px solid var(--swatch-line)}
.theme-name{display:flex;align-items:center;justify-content:space-between;gap:5px;font-size:var(--text-md);font-weight:700;color:var(--ink)}
.theme-name>span{color:var(--accent);visibility:hidden}
.theme-option>input:checked+.theme-card .theme-name>span{visibility:visible}
.theme-card small{font-size:var(--text-xs);color:var(--muted);line-height:1.5}
.theme-option .theme-card,.text-size-options>label>span{float:none}
.text-size-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.text-size-options>label>span{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:72px;padding:10px 5px;border:1px solid var(--control-line);border-radius:7px;text-align:center;background:var(--surface)}
.text-size-options input:checked+span{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent);background:var(--accent-soft);color:var(--accent)}
.text-size-options strong{font-size:var(--text-sm);font-weight:600}
.text-size-options small{font-size:var(--text-xs);color:var(--muted)}
.appearance-font{margin-bottom:24px}
.appearance-preview{padding:17px;border:1px solid var(--line);border-radius:8px;background:var(--surface);display:flex;flex-direction:column;gap:8px}
.appearance-preview>span:first-child{font-size:var(--text-xs);letter-spacing:.5px;color:var(--muted);font-weight:600}
.appearance-preview>strong{font-size:var(--text-lg);font-weight:700;color:var(--ink)}
.appearance-preview p{font-size:var(--text-sm);line-height:1.5;margin:0;color:var(--muted)}
.appearance-preview-value{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:var(--text-sm);color:var(--muted);flex-wrap:wrap}
.appearance-preview-value b{color:var(--ink);font-weight:600}
.appearance-preview-value small{font-size:var(--text-xs);color:var(--muted)}
.appearance-dialog .appearance-saved{font-size:var(--text-xs);color:var(--muted);margin:14px 0 20px;line-height:1.6}
.appearance-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.appearance-actions .text-btn{margin:0}
@container workspace (max-width:650px){
  .summary{grid-template-columns:1fr 1fr;row-gap:20px}
  .summary>div:nth-child(2){border:0}
  .summary .mix{grid-column:1/-1;border-top:1px solid var(--line);padding:16px 0 0}
  .summary .mix strong{padding-top:0}
  .workspace-top{flex-wrap:wrap}
  .export-icon{display:none}
}
@media(min-width:1550px){.workspace{padding-top:36px}.viewer-wrap{height:660px}}
@media(max-width:1180px){
  header{padding-inline:20px}.header-right>.local-dot,.header-right>.local-status{display:none}
  main{grid-template-columns:minmax(300px,calc(300px * var(--text-scale))) minmax(0,1fr)}
  aside{padding:26px 20px 0}.workspace{padding:26px 18px 32px}
  .summary>div{padding-inline:12px}.export-card{padding:16px}
}
@media(max-width:820px){
  header{padding:12px 16px;min-height:68px;gap:10px}.brand{gap:8px}.brand b{font-size:var(--text-sm)}.brand small{display:none}.brand i{margin:0 2px}
  main{display:flex;flex-direction:column}.workspace{order:-1;padding:22px 16px 24px;position:static;width:100%}
  aside{border-right:0;border-top:1px solid var(--line);padding:10px 22px 0}.intro{display:none}
  .viewer-wrap{height:560px;min-height:calc(480px * var(--text-scale))}
  .workspace-top{margin-bottom:17px}.point-row{grid-template-columns:40px 74px minmax(0,1fr) 30px}
}
@media(max-width:580px){
  .generate-action{right:max(16px,env(safe-area-inset-right,0px));bottom:max(12px,env(safe-area-inset-bottom,0px))}
  .brand b,.brand i{display:none}.brand .appname{font-size:var(--text-lg)}
  .header-right{gap:6px}.appearance-button{padding:7px 8px;font-size:var(--text-xs)}.appearance-button svg{width:16px;height:16px}
  .icon-btn{width:32px;min-height:34px}.viewport-heading{top:12px;left:12px;right:12px;gap:10px}
  .viewport-top button span{display:none}.viewport-top button{min-width:34px;padding:5px 8px}
  .view-label{letter-spacing:0}.legend{gap:4px 10px}.point-toolbar{gap:2px;padding:4px}.point-toolbar button{padding:7px 6px}
  .viewport-footer{left:12px;right:12px;bottom:10px;gap:10px}.view-controls{padding:8px;gap:7px 10px}
  .selection-banner{padding:9px;align-items:flex-start;gap:6px;flex-wrap:wrap}.explode-area>input{width:70px}
  .summary>div{padding-inline:12px}.summary strong{font-size:calc(25px * var(--text-scale))}
  .summary .mix strong{font-size:calc(21px * var(--text-scale))}.export-card{gap:12px}
  .export-card .dark-btn{width:100%;margin:0}.export-card h3{font-size:var(--text-sm)}
  dialog{padding:25px 18px}.appearance-dialog{padding-top:32px}.theme-card{padding:10px;gap:7px}
}
@media(max-width:370px){
  .theme-options{grid-template-columns:1fr}.text-size-options{gap:5px}.text-size-options strong{font-size:var(--text-xs)}
  .workspace{padding-inline:10px}.header-right{gap:4px}.brand{gap:5px}.appearance-button{gap:5px}.brand .appname{font-size:var(--text-md)}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}.field-help-visual .help-flow{animation:none}}