:root{--stage: #0b0c0e;--ink: #111315;--panel: rgba(17, 19, 21, .9);--hair: rgba(255, 255, 255, .15);--border: rgba(255, 255, 255, .08);--fill: rgba(255, 255, 255, .1);--fill-hover: rgba(255, 255, 255, .16);--text: rgba(255, 255, 255, .92);--label: rgba(255, 255, 255, .45);--seg-text: rgba(255, 255, 255, .6);--section-border: rgba(255, 255, 255, .06);--slider-fill: rgba(255, 255, 255, .85);--thumb: #ffffff;--input-bg: rgba(0, 0, 0, .25);--chip-border: rgba(255, 255, 255, .12);--ring: #ffffff;--switch-bg: rgba(255, 255, 255, .14);--switch-knob: #ffffff;--scrollbar: rgba(255, 255, 255, .1);--empty-border: rgba(255, 255, 255, .18);--empty-bg: rgba(255, 255, 255, .015);--canvas-shadow: 0 30px 80px rgba(0, 0, 0, .55);--panel-shadow: 0 24px 70px rgba(0, 0, 0, .5);--toast-bg: rgba(17, 19, 21, .95);--blue: #4d84f5;--drag-bg: rgba(77, 132, 245, .06);--ok: #58c98a;--ok-bg: rgba(88, 201, 138, .1);--ok-border: rgba(88, 201, 138, .25);--bad: #f0705a;--bad-bg: rgba(240, 112, 90, .1);--bad-border: rgba(240, 112, 90, .25);--sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}[data-theme=light]{--stage: #e9e9e4;--panel: rgba(251, 251, 249, .9);--hair: rgba(17, 19, 21, .15);--border: rgba(17, 19, 21, .08);--fill: rgba(17, 19, 21, .06);--fill-hover: rgba(17, 19, 21, .11);--text: #111315;--label: rgba(17, 19, 21, .45);--seg-text: rgba(17, 19, 21, .6);--section-border: rgba(17, 19, 21, .06);--slider-fill: #111315;--thumb: #111315;--input-bg: rgba(17, 19, 21, .05);--chip-border: rgba(17, 19, 21, .15);--ring: #111315;--switch-bg: rgba(17, 19, 21, .18);--switch-knob: #fbfbf9;--scrollbar: rgba(17, 19, 21, .15);--empty-border: rgba(17, 19, 21, .2);--empty-bg: rgba(17, 19, 21, .02);--canvas-shadow: 0 18px 50px rgba(0, 0, 0, .15);--panel-shadow: 0 18px 50px rgba(0, 0, 0, .12);--toast-bg: rgba(251, 251, 249, .95);--blue: #1849a9;--drag-bg: rgba(24, 73, 169, .05);--ok: #1e7a4d;--ok-bg: rgba(30, 122, 77, .08);--ok-border: rgba(30, 122, 77, .3);--bad: #b33d28;--bad-bg: rgba(179, 61, 40, .08);--bad-border: rgba(179, 61, 40, .3)}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:var(--stage);color:var(--text);font-family:var(--sans);-webkit-font-smoothing:antialiased;overflow:hidden;transition:background .2s ease,color .2s ease}#app{position:fixed;inset:0}.stage{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:48px 380px 48px 48px}.canvas-wrap{position:relative;max-width:100%;max-height:100%;display:flex;align-items:center;justify-content:center}canvas.preview{display:block;max-width:100%;max-height:calc(100vh - 96px);border-radius:10px;box-shadow:var(--canvas-shadow);cursor:grab;touch-action:none}canvas.preview.dragging{cursor:grabbing}canvas.preview.hidden{display:none}.empty{width:min(64vw,720px);aspect-ratio:16 / 9;max-height:calc(100vh - 96px);border:1.5px dashed var(--empty-border);border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--label);text-align:center;background:var(--empty-bg);transition:border-color .15s ease,background .15s ease}.empty.hidden{display:none}.empty strong{color:var(--text);font-weight:500;font-size:15px}.empty span{font-size:13px}.empty .browse{margin-top:6px}.empty.quiet>*{visibility:hidden}.loadbox{position:absolute;inset:0;display:none;flex-direction:column;align-items:center;justify-content:center;gap:12px;z-index:3;pointer-events:none}.loadbox.show{display:flex}.spinner{width:32px;height:32px;border-radius:50%;border:2px dotted var(--label);animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loadbox span{font-size:12px;color:var(--label)}.load-error{position:absolute;left:50%;bottom:18px;transform:translate(-50%);display:none;font-size:12px;color:var(--bad);background:var(--toast-bg);border:1px solid var(--border);border-radius:999px;padding:6px 12px;z-index:3;white-space:nowrap}.load-error.show{display:block}body.drag-over .empty{border-color:var(--blue);background:var(--drag-bg)}body.drag-over .stage:after{content:"";position:absolute;inset:16px;border:1.5px dashed var(--blue);border-radius:18px;pointer-events:none}.wordmark{position:absolute;top:22px;left:26px;z-index:5;display:flex;align-items:center;gap:14px}.logo-img{display:block;height:30px;width:auto}.wordmark .replace{display:none}.wordmark .replace.show{display:inline-flex}.theme-toggle{appearance:none;display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;padding:0;border-radius:999px;border:1px solid var(--border);background:transparent;color:var(--label);cursor:pointer;transition:color .12s ease,background .12s ease;flex:none}.theme-toggle:hover{color:var(--text);background:var(--fill)}.theme-toggle svg{width:15px;height:15px;display:block}.theme-toggle .icon-sun{display:block}.theme-toggle .icon-moon,[data-theme=light] .theme-toggle .icon-sun{display:none}[data-theme=light] .theme-toggle .icon-moon{display:block}.panel{position:absolute;top:20px;right:20px;max-height:calc(100vh - 40px);width:300px;border-radius:16px;background:var(--panel);-webkit-backdrop-filter:blur(24px) saturate(1.2);backdrop-filter:blur(24px) saturate(1.2);border:1px solid var(--border);box-shadow:var(--panel-shadow);padding:18px 18px 20px;overflow-y:auto;z-index:10}.panel::-webkit-scrollbar{width:8px}.panel::-webkit-scrollbar-thumb{background:var(--scrollbar);border-radius:8px}.section{padding:14px 0;border-bottom:1px solid var(--section-border)}.section:last-child{border-bottom:none}.section:first-child{padding-top:4px}.label-row{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:10px}.label{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--label)}.value{font-size:12px;color:var(--text);font-variant-numeric:tabular-nums;text-align:right}.segmented{display:flex;gap:4px;border:1px solid var(--border);border-radius:10px;padding:3px}.segmented.wrap{flex-wrap:wrap}.seg{flex:1 1 auto;min-width:0;appearance:none;border:none;background:transparent;color:var(--seg-text);font:inherit;font-size:12px;padding:6px 4px;border-radius:7px;cursor:pointer;transition:background .12s ease,color .12s ease;text-align:center}.seg:hover{color:var(--text)}.seg.active{background:var(--fill);color:var(--text)}.dial-wrap{display:flex;justify-content:center;padding:6px 0 2px}.dial{position:relative;width:64px;height:64px;border-radius:50%;border:1px solid var(--hair);background:transparent;cursor:pointer;touch-action:none}.dial:focus-visible{outline:2px solid var(--blue);outline-offset:2px}.dial-line{position:absolute;left:50%;top:50%;width:31px;height:1px;background:var(--hair);transform-origin:0 50%;pointer-events:none}.dial-dot{position:absolute;width:10px;height:10px;margin:-5px 0 0 -5px;border-radius:50%;background:var(--thumb);box-shadow:0 1px 4px #0006;pointer-events:none}.custom-size{display:none;gap:8px;margin-top:10px;align-items:center}.custom-size.show{display:flex}.custom-size input{width:100%;background:var(--input-bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font:inherit;font-size:12px;padding:6px 8px;font-variant-numeric:tabular-nums}.custom-size input:focus{outline:none;border-color:var(--blue)}.custom-size .x{color:var(--label);font-size:12px}input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:16px;background:transparent;cursor:pointer;margin:0}input[type=range]::-webkit-slider-runnable-track{height:2px;border-radius:2px;background:var(--hair)}input[type=range]::-moz-range-track{height:2px;border-radius:2px;background:var(--hair)}input[type=range]::-moz-range-progress{height:2px;border-radius:2px;background:var(--slider-fill)}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:12px;height:12px;border-radius:50%;background:var(--thumb);margin-top:-5px;box-shadow:0 1px 4px #0006}input[type=range]::-moz-range-thumb{width:12px;height:12px;border:none;border-radius:50%;background:var(--thumb);box-shadow:0 1px 4px #0006}input[type=range]:focus-visible::-webkit-slider-thumb{outline:2px solid var(--blue);outline-offset:2px}input[type=range]:focus-visible::-moz-range-thumb{outline:2px solid var(--blue);outline-offset:2px}.swatches{display:flex;gap:10px}.swatch{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;background:none;border:none;padding:0;cursor:pointer;color:var(--label);font:inherit;font-size:11px}.swatch .chip{width:100%;height:30px;border-radius:8px;border:1px solid var(--chip-border);box-shadow:inset 0 0 0 0 transparent;transition:box-shadow .12s ease}.swatch.active .chip{box-shadow:0 0 0 2px var(--stage),0 0 0 3.5px var(--ring)}.swatch.active{color:var(--text)}.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:5px 10px;border-radius:999px;border:1px solid var(--border);font-variant-numeric:tabular-nums}.pill.ok{color:var(--ok);background:var(--ok-bg);border-color:var(--ok-border)}.pill.bad{color:var(--bad);background:var(--bad-bg);border-color:var(--bad-border)}.pill .ratio{color:var(--label)}.toggle-row{display:flex;align-items:center;justify-content:space-between}.switch{position:relative;width:36px;height:20px;border-radius:999px;background:var(--switch-bg);border:none;cursor:pointer;transition:background .15s ease;padding:0;flex:none}.switch:after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;background:var(--switch-knob);transition:transform .15s ease}.switch.on{background:var(--blue)}.switch.on:after{transform:translate(16px)}[data-theme=light] .switch.on:after{background:#fff}.btn{appearance:none;border:1px solid var(--border);background:var(--fill);color:var(--text);font:inherit;font-size:13px;font-weight:500;padding:9px 12px;border-radius:10px;cursor:pointer;transition:transform .1s ease,background .12s ease}.btn:hover{background:var(--fill-hover);transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn.ghost{background:transparent;font-size:12px;padding:4px 10px;color:var(--label)}.btn.ghost:hover{color:var(--text);transform:none}.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.btn-row{display:flex;gap:8px}.btn-row .btn{flex:1}.export-full{width:100%;margin-top:8px}.toast{position:fixed;bottom:28px;left:50%;transform:translate(-50%) translateY(12px);background:var(--toast-bg);border:1px solid var(--border);color:var(--text);font-size:13px;padding:9px 16px;border-radius:999px;opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease;z-index:50;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.toast.show{opacity:1;transform:translate(-50%) translateY(0)}.hint{font-size:11px;color:var(--label);margin-top:8px;line-height:1.5}@media (max-width: 720px){.stage{padding:16px;padding-bottom:46vh}.panel{inset:auto 12px 12px;width:auto;max-height:44vh}canvas.preview{max-height:50vh}}