:root{--ink:#171a1d;--muted:#6e747b;--line:#dfe2e4;--panel:#fff;--paper:#f2f3f3;--accent:#b3131b;--shadow:0 18px 55px rgba(20,24,28,.09)}
.controls-card form.is-loading{pointer-events:none;opacity:.58}
*{box-sizing:border-box}html{background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif}body{margin:0;background:radial-gradient(circle at 10% 0,#fff 0,transparent 28rem),var(--paper)}button,input,select{font:inherit}
.app-shell{max-width:1600px;margin:auto;padding:28px 34px 50px}.topbar{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:22px}.eyebrow,.section-label{display:block;color:var(--accent);font-size:11px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.topbar h1{font-size:clamp(28px,3vw,48px);line-height:1.02;letter-spacing:-.045em;margin:6px 0 0}.spec-pill{display:flex;align-items:center;gap:14px;background:var(--ink);color:#fff;border-radius:999px;padding:10px 16px}.spec-pill span{font-size:11px;color:#bfc3c7;text-transform:uppercase;letter-spacing:.08em}.spec-pill strong{font-size:14px}
.workspace{display:grid;grid-template-columns:minmax(360px,.76fr) minmax(0,1.65fr);gap:22px;align-items:start}.preview-column{display:grid;gap:16px}.viewer-card,.controls-card,.url-card{background:var(--panel);border:1px solid rgba(0,0,0,.07);box-shadow:var(--shadow);border-radius:18px}.controls-card{position:sticky;top:18px;max-height:calc(100vh - 36px);overflow:auto}.viewer-card{overflow:hidden}.viewer-toolbar{height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line)}.status{font-size:12px;font-weight:700}.status i{display:inline-block;width:7px;height:7px;border-radius:50%;background:#37a962;box-shadow:0 0 0 4px #e8f7ee;margin-right:8px}.quiet-button,.text-button{border:0;background:transparent;color:var(--muted);cursor:pointer;font-size:12px}.quiet-button:hover,.text-button:hover{color:var(--accent)}#viewer{position:relative;height:min(61vh,650px);min-height:440px;background:radial-gradient(ellipse at center,#f9fafb 0,#e8eaeb 58%,#d9dddf 100%);cursor:grab}#viewer:active{cursor:grabbing}.loading{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:20px;font-size:13px;color:var(--muted)}.viewer-hint{text-align:center;border-top:1px solid var(--line);padding:10px;font-size:11px;color:#8b9095}
.control-section{padding:18px 20px;border-bottom:1px solid var(--line)}.control-section:last-child{border-bottom:0}.section-label{margin-bottom:12px}.segmented{display:grid;grid-template-columns:1fr 1fr;background:#eef0f1;border-radius:10px;padding:3px}.segmented input{position:absolute;opacity:0}.segmented span{display:block;text-align:center;padding:9px 8px;border-radius:8px;color:#656b70;font-size:12px;font-weight:700;cursor:pointer}.segmented input:checked+span{background:#fff;color:var(--ink);box-shadow:0 1px 5px rgba(0,0,0,.12)}
.type-editor{padding:13px;background:#f7f8f8;border-radius:11px}.editor-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}.editor-heading strong{font-size:12px}.editor-heading span{font-size:9px;text-transform:uppercase;letter-spacing:.07em;font-weight:800}.editor-heading .exportable{color:#388354}.editor-heading .preview-only{color:#a76b13}.field,.color-field{display:grid;grid-template-columns:108px 1fr;align-items:center;gap:10px;margin-top:9px}.field>span,.color-field>span{font-size:11px;font-weight:700}.field input,.field select,.svg-options select{width:100%;border:1px solid var(--line);border-radius:8px;background:#fff;padding:8px 9px;font-size:12px;outline:none}.field input:focus,.field select:focus{border-color:#81878c;box-shadow:0 0 0 3px #eceeef}.field input:disabled{background:#eceeef;color:#969ca1}.swatches{display:flex;gap:8px}.swatches input{position:absolute;opacity:0}.swatches i{display:block;width:28px;height:28px;border-radius:50%;border:3px solid #fff;box-shadow:0 0 0 1px var(--line);cursor:pointer}.swatches input:checked+i{box-shadow:0 0 0 2px var(--ink)}.swatches .black{background:#080808}.swatches .red{background:#c71420}.range-field{display:block;margin-top:13px}.range-field>span{display:flex;justify-content:space-between;align-items:center;font-size:11px}.range-field b{font-weight:700}.range-field output{color:var(--muted);font-variant-numeric:tabular-nums}.range-field input{width:100%;accent-color:var(--accent);margin:7px 0 0}.microcopy{color:var(--muted);font-size:10px;line-height:1.45;margin:10px 0 0}
.split-visual{display:flex;height:34px;align-items:stretch;margin:4px 0 14px}.split-visual div{display:grid;place-items:center;background:#eef0f1;border:1px solid #d8dcde;border-radius:6px;font-size:10px;font-weight:700;color:#666}.split-visual span{flex:0 0 2%}.editor-tabs{display:grid;grid-template-columns:1fr 1fr;margin-top:17px;border-bottom:1px solid var(--line)}.editor-tabs button{border:0;border-bottom:2px solid transparent;background:transparent;padding:10px;color:var(--muted);font-size:11px;font-weight:800;cursor:pointer}.editor-tabs button[aria-selected="true"]{color:var(--accent);border-bottom-color:var(--accent)}.editor-tabs button:disabled{color:#b8bdc1;background:#f1f2f2;border-bottom-color:transparent;cursor:not-allowed}.tab-panel{padding-top:11px}.invert-field{margin-top:14px}.upload-box{margin-top:14px;border:1px dashed #c9ced1;border-radius:11px;padding:13px;display:grid;gap:10px}.upload-box>div:first-child{display:grid;gap:3px}.upload-box strong{font-size:12px}.upload-box span{font-size:10px;color:var(--muted)}.file-button{justify-self:start;background:#eceeef;border-radius:7px;padding:8px 11px;font-size:11px;font-weight:700;cursor:pointer}.file-button input{display:none}.svg-options{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:7px;align-items:center}.svg-options select{padding:6px;font-size:11px}.svg-options #svgName{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.svg-option-field,.svg-scale-field{grid-column:1/-1;margin-top:5px}
.url-card{padding:17px 18px;display:grid;gap:12px}.url-card p{margin:4px 0 0;color:var(--muted);font-size:12px}.action-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px}.url-row{display:flex;gap:8px;min-width:0}.url-row input{flex:1;min-width:0;border:1px solid var(--line);background:#f7f8f8;border-radius:9px;padding:10px 12px;color:#5f656a;font-size:12px}.primary-button,.export-button{border:0;border-radius:9px;padding:0 16px;font-weight:700;font-size:12px;cursor:pointer;white-space:nowrap}.primary-button{background:var(--ink);color:#fff}.primary-button.copied{background:#2f8952}.export-button{background:var(--accent);color:#fff}.export-button:disabled{background:#c7cacc;color:#7e8387;cursor:not-allowed}.url-warning,.export-status{font-size:11px;border-radius:8px;padding:8px 10px}.url-warning{color:#9a6412;background:#fff8e8}.export-status{color:#596066;background:#f0f2f3}.export-status.success{color:#287647;background:#e9f6ee}.export-status.error{color:#a42027;background:#fff0f1}
@media(max-width:980px){.app-shell{padding:20px}.workspace{grid-template-columns:1fr}.controls-card{position:static;max-height:none}#viewer{height:52vh;min-height:360px}}@media(max-width:600px){.app-shell{padding:14px}.topbar{align-items:flex-start}.spec-pill{display:none}.workspace{gap:12px}.viewer-toolbar{padding:0 12px}#viewer{height:42vh;min-height:300px}.action-row,.url-row{grid-template-columns:1fr;display:grid}.primary-button,.export-button{padding:11px}.field,.color-field{grid-template-columns:96px 1fr}}