:root{color-scheme:light;--paper: #f2f1ed;--ink: #1d1d1f;--muted: #6e6e73;--quiet: #8e8e93;--accent: #285fd8;--accent-soft: rgba(78, 123, 221, .16);--ui-surface: rgba(248, 251, 255, .24);--ui-solid: #f7f9fd;--ui-fill: rgba(255, 255, 255, .28);--ui-fill-hover: rgba(255, 255, 255, .48);--line: rgba(29, 29, 31, .08);--line-strong: rgba(29, 29, 31, .14);--glass-clear: rgba(248, 251, 255, .16);--glass-regular: rgba(248, 251, 255, .3);--glass-edge: rgba(255, 255, 255, .68);--shadow-floating: 0 16px 46px rgba(29, 46, 74, .13), 0 2px 8px rgba(24, 35, 54, .08), inset 0 1px 0 rgba(255, 255, 255, .72), inset 0 -1px 0 rgba(76, 103, 145, .08);--shadow-sheet: 0 28px 78px rgba(29, 46, 74, .17), 0 3px 12px rgba(24, 35, 54, .09), inset 0 1px 0 rgba(255, 255, 255, .78), inset 0 -1px 0 rgba(76, 103, 145, .1);--radius-control: 10px;--radius-panel: 20px;--font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "Yu Gothic UI", sans-serif;--bar-h: 70px}*{box-sizing:border-box}html,body,#app{width:100%;height:100%;margin:0;overflow:hidden}body{background:var(--paper);color:var(--ink);font-family:var(--font-ui);-webkit-font-smoothing:antialiased}button,input,select,textarea{color:inherit;font:inherit}button{border:0;background:transparent;cursor:pointer}button,a,label,select,input,textarea{-webkit-tap-highlight-color:transparent}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible,.file-button:focus-within{outline:3px solid rgba(36,107,253,.38);outline-offset:2px}button:disabled{cursor:default;opacity:.28}[hidden]{display:none!important}svg{width:20px;height:20px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}output,.panel-index,.option-number,.rail-count,.number-input{font-variant-numeric:tabular-nums}.app{position:relative;background:var(--paper);isolation:isolate}.stage{position:absolute;inset:0;overflow:hidden;touch-action:none;cursor:grab}.stage:active{cursor:grabbing}#previewCanvas{position:absolute;inset:0;width:100%;height:100%;display:block}.stage-guide{display:none}.chrome{transition:opacity .18s ease,transform .18s ease}.masthead{position:absolute;top:16px;left:20px;right:20px;z-index:20;display:flex;align-items:center;justify-content:space-between;pointer-events:none}.masthead button{pointer-events:auto}.wordmark{min-width:72px;min-height:44px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:1px;padding:0 4px;font:720 13px/.82 var(--font-ui);letter-spacing:.035em}.wordmark-blue{color:#2864dd}.wordmark-black{color:#111114}.head-actions{display:flex;align-items:center;gap:6px}.text-button{min-height:44px;display:inline-flex;align-items:center;gap:7px;padding:0 13px;border-radius:999px;color:var(--muted);font-size:13px;font-weight:550}.text-button.is-primary{padding-inline:15px;border:1px solid rgba(255,255,255,.18);background:#1d1d20;color:#fff;box-shadow:0 7px 20px #0003,inset 0 1px #ffffff29}.operator-rail{position:absolute;left:12px;top:50%;z-index:24;transform:translateY(-50%)}.rail-trigger{min-width:64px;height:44px;display:flex;align-items:center;justify-content:center;gap:5px;padding:0 9px 0 12px;border:1px solid var(--glass-edge);border-radius:14px;background:var(--glass-clear);box-shadow:0 9px 26px #1d2e4a1f,inset 0 1px #ffffffb8,inset 0 -1px #4c679114;-webkit-backdrop-filter:blur(18px) saturate(1.35) brightness(1.04);backdrop-filter:blur(18px) saturate(1.35) brightness(1.04);color:var(--muted)}.rail-trigger svg{width:16px;height:16px}.rail-count{display:flex;align-items:center;gap:3px;color:var(--ink);font-size:12px;font-weight:600}.rail-count>span:nth-child(2),.rail-count>span:last-child{color:var(--quiet);font-weight:500}.operator-menu{position:absolute;z-index:23;top:50%;left:84px;width:min(390px,calc(100vw - 104px));max-height:min(560px,calc(100vh - 104px));overflow:auto;transform:translateY(-50%);padding:8px;border:1px solid var(--glass-edge);border-radius:var(--radius-panel);background:var(--glass-regular);-webkit-backdrop-filter:blur(28px) saturate(1.28) brightness(1.04);backdrop-filter:blur(28px) saturate(1.28) brightness(1.04);box-shadow:var(--shadow-sheet)}.operator-option{width:100%;min-height:70px;display:grid;grid-template-columns:28px 76px minmax(0,1fr);align-items:center;gap:12px;padding:8px 12px;border-radius:13px;text-align:left}.operator-option+.operator-option{margin-top:2px}.operator-option[aria-current=true]{background:#4a77dc24;box-shadow:inset 0 0 0 1px #285fd81a,inset 0 1px #ffffff7a;color:var(--ink)}.operator-option[aria-current=true] .option-number{color:var(--accent)}.option-number{align-self:center;color:var(--quiet);font-size:11px;font-weight:600}.option-preview{width:76px;height:48px;display:block;border-radius:9px;background:#1d1d1f09}.option-copy{min-width:0}.option-copy strong{display:block;overflow:hidden;text-overflow:ellipsis;font-size:13px;font-weight:600;letter-spacing:-.1px;white-space:nowrap}.option-copy span{display:block;margin-top:5px;color:var(--muted);font-size:11px;font-weight:400;line-height:1.35}.control-bar{position:absolute;z-index:22;left:50%;bottom:16px;width:calc(100% - 36px);max-width:1120px;min-height:var(--bar-h);transform:translate(-50%);display:grid;grid-template-columns:minmax(190px,1.2fr) minmax(150px,.72fr) minmax(220px,1fr) auto;align-items:stretch;overflow:hidden;border:1px solid var(--glass-edge);border-radius:20px;background:var(--glass-clear);box-shadow:var(--shadow-floating);-webkit-backdrop-filter:blur(18px) saturate(1.38) brightness(1.04);backdrop-filter:blur(18px) saturate(1.38) brightness(1.04)}.control-bar:before{content:"";position:absolute;inset:0;pointer-events:none;border-radius:inherit;background:transparent;box-shadow:inset 0 1px #ffffff85}.control-bar>*{position:relative;z-index:1}.control-bar>*+*{border-left:1px solid var(--line)}.text-entry,.primary-control{display:grid;align-items:center;gap:12px;padding:0 16px}.text-entry{grid-template-columns:auto minmax(0,1fr)}.text-entry>span,.primary-readout{color:var(--muted);font-size:12px;font-weight:500;line-height:1}.text-entry textarea{min-width:0;width:100%;height:44px;resize:none;overflow:auto;border:0;outline:0;padding:11px 0 8px;background:transparent;font-size:17px;font-weight:550;line-height:1.2;letter-spacing:-.25px}.operator-readout{min-width:0;padding:0 16px;text-align:left}.operator-readout span{display:block;color:var(--muted);font-size:11px;font-weight:500}.operator-readout strong{display:block;margin-top:4px;overflow:hidden;text-overflow:ellipsis;font-size:13px;font-weight:600;line-height:1.2;letter-spacing:-.1px;white-space:nowrap}.primary-control{grid-template-columns:96px minmax(80px,1fr)}.primary-readout{display:flex;justify-content:space-between;gap:8px;min-width:0;white-space:nowrap}.primary-control output{color:var(--ink);font-weight:600}input[type=range]{appearance:none;min-width:0;height:44px;margin:0;background:transparent;cursor:pointer}input[type=range]::-webkit-slider-runnable-track{height:3px;border-radius:999px;background:linear-gradient(90deg,var(--accent) 0 var(--range-progress, 50%),rgba(29,29,31,.16) var(--range-progress, 50%) 100%)}input[type=range]::-webkit-slider-thumb{appearance:none;width:16px;height:16px;margin-top:-6.5px;border:2px solid var(--accent);border-radius:50%;background:#fff;box-shadow:0 1px 4px #0000002e}input[type=range]::-moz-range-track{height:3px;border-radius:999px;background:#1d1d1f29}input[type=range]::-moz-range-progress{height:3px;border-radius:999px;background:var(--accent)}input[type=range]::-moz-range-thumb{width:14px;height:14px;border:2px solid var(--accent);border-radius:50%;background:#fff;box-shadow:0 1px 4px #0000002e}.bar-actions{display:flex;padding:8px;gap:2px}.icon-button,.details-button{min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:11px;color:var(--muted)}.details-button{gap:7px;padding:0 12px;color:var(--ink);font-size:13px;font-weight:550}.details-button svg{color:var(--muted)}.details-button[aria-expanded=true]{background:var(--accent-soft);color:var(--accent)}.details-button[aria-expanded=true] svg{color:inherit}.details-panel{position:absolute;z-index:30;right:18px;bottom:102px;width:324px;max-height:calc(100vh - 122px);overflow:auto;overscroll-behavior:contain;padding:8px;border:1px solid var(--glass-edge);border-radius:var(--radius-panel);background:var(--glass-regular);-webkit-backdrop-filter:blur(28px) saturate(1.28) brightness(1.04);backdrop-filter:blur(28px) saturate(1.28) brightness(1.04);box-shadow:var(--shadow-sheet)}.panel-heading{position:sticky;top:-8px;z-index:2;min-height:68px;display:flex;justify-content:space-between;align-items:center;padding:12px;border-bottom:1px solid var(--line);background:#f8fbff47;-webkit-backdrop-filter:blur(20px) saturate(1.18);backdrop-filter:blur(20px) saturate(1.18)}.panel-index{display:block;margin-bottom:5px;color:var(--muted);font-size:11px;font-weight:500}.panel-heading h2{margin:0;font-size:17px;font-weight:600;line-height:1.2;letter-spacing:-.3px}.panel-heading .icon-button{min-width:44px;min-height:44px}.preset-switch{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:10px 4px 6px}.preset-switch button{min-height:44px;border-radius:10px;background:var(--ui-fill);color:var(--muted);font-size:13px;font-weight:550}.parameter-controls{padding:2px 4px}.parameter-row{padding:11px 8px 10px;border-bottom:1px solid var(--line)}.parameter-row:last-child{border-bottom:0}.parameter-row label{display:flex;justify-content:space-between;gap:12px;margin-bottom:2px;color:var(--muted);font-size:12px;font-weight:500;line-height:1.3}.parameter-row output{color:var(--ink);font-size:12px;font-weight:600}.parameter-row input,.parameter-row select{width:100%}.parameter-pair{display:grid;grid-template-columns:minmax(0,1fr) 92px;align-items:center;gap:10px}.parameter-pair .number-input,.parameter-row select,.details-meta select,.dialog-row select{min-height:44px;border:1px solid transparent;border-radius:var(--radius-control);background:var(--ui-fill)}.parameter-pair .number-input{padding:0 10px;font-size:12px;font-weight:550;text-align:right}.parameter-pair .number-input{appearance:textfield}.parameter-pair .number-input::-webkit-inner-spin-button,.parameter-pair .number-input::-webkit-outer-spin-button{appearance:none;margin:0}.parameter-row select,.details-meta select,.dialog-row select{padding:0 34px 0 12px;font-size:13px;font-weight:500}.details-meta{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:8px 4px 4px}.details-meta>*{min-width:0;min-height:44px;border:0;border-radius:var(--radius-control);background:var(--ui-fill)}.color-field,.file-button{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0 11px;font-size:12px;font-weight:550;cursor:pointer}.color-field input{width:28px;height:28px;padding:0;border:0;border-radius:50%;background:transparent}.file-button input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.details-meta select{grid-column:span 2;width:100%}.render-status{position:absolute;z-index:19;left:50%;top:24px;max-width:min(56vw,520px);min-height:20px;transform:translate(-50%);display:flex;align-items:center;justify-content:center;gap:7px;color:var(--muted);font-size:11px;font-weight:500}.status-dot{width:6px;height:6px;flex:0 0 auto;border-radius:50%;background:#1d1d1f3d}.render-status:not(.is-busy):not(.is-error) #statusText{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.render-status:not(.is-busy):not(.is-error) .status-dot{display:none}.render-status.is-busy .status-dot{background:var(--accent);animation:pulse .9s ease-in-out infinite alternate}.render-status.is-error{max-width:min(70vw,620px);padding:7px 10px;border-radius:10px;background:#ffffffe0;color:#b42318;line-height:1.35;text-align:center;white-space:normal}.render-status button{min-height:32px;padding:0 6px;color:inherit;font-size:11px;font-weight:600}.fit-button{position:absolute;z-index:19;right:22px;bottom:104px;min-height:44px;display:inline-flex;align-items:center;gap:7px;padding:0 13px;border:1px solid var(--glass-edge);border-radius:12px;background:var(--glass-clear);box-shadow:0 7px 22px #1d2e4a1c,inset 0 1px #ffffffad;color:var(--muted);font-size:12px;font-weight:550;-webkit-backdrop-filter:blur(16px) saturate(1.3);backdrop-filter:blur(16px) saturate(1.3)}@keyframes pulse{to{opacity:.25}}.export-dialog{width:min(430px,calc(100vw - 28px));max-height:calc(100vh - 28px);overflow:auto;border:1px solid var(--glass-edge);border-radius:24px;padding:0;background:var(--glass-regular);color:var(--ink);box-shadow:var(--shadow-sheet);-webkit-backdrop-filter:blur(30px) saturate(1.25) brightness(1.03);backdrop-filter:blur(30px) saturate(1.25) brightness(1.03)}.export-dialog::backdrop{background:#121d3029;-webkit-backdrop-filter:blur(8px) saturate(.92);backdrop-filter:blur(8px) saturate(.92)}.export-sheet{display:block;padding:8px}.export-dialog .panel-heading{top:-8px;margin-bottom:4px}.dialog-row{min-height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 12px;border-bottom:1px solid var(--line);color:var(--muted);font-size:13px;font-weight:500}.dialog-row select{width:96px;color:var(--ink)}.check-row{justify-content:flex-start;gap:10px}.check-row input{width:18px;height:18px;accent-color:var(--accent)}.export-actions,.project-actions{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:8px 4px}.export-actions{padding-top:12px}.export-actions button,.project-actions button,.project-actions .file-button{min-height:46px;border-radius:12px;background:var(--ui-fill);text-align:center;justify-content:center;font-size:13px;font-weight:600}.export-actions button:first-child{background:var(--ink);color:#fff}.export-actions button:disabled{cursor:wait;opacity:.45}.export-download{display:flex;min-height:44px;align-items:center;justify-content:center;margin:0 4px;padding:0 12px;border-radius:11px;background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:600;line-height:1.4;text-align:center;text-decoration:none}.export-download[hidden]{display:none}.export-sheet p{margin:0;padding:8px 12px 12px;color:var(--muted);font-size:11px;font-weight:400;line-height:1.45}.app.ui-hidden .chrome{opacity:0;pointer-events:none}.restore-ui{position:fixed;z-index:50;left:50%;bottom:16px;transform:translate(-50%)}.restore-ui button{min-height:44px;padding:0 16px;border:1px solid var(--glass-edge);border-radius:999px;background:var(--glass-clear);box-shadow:var(--shadow-floating);color:var(--muted);font-size:13px;font-weight:550;-webkit-backdrop-filter:blur(18px) saturate(1.35);backdrop-filter:blur(18px) saturate(1.35)}@media(hover:hover){.text-button:hover,.icon-button:hover:not(:disabled),.details-button:hover,.rail-trigger:hover{background:var(--ui-fill-hover);color:var(--ink)}.text-button.is-primary:hover,.export-actions button:first-child:hover{background:#000;color:#fff}.operator-option:hover{background:#1d1d1f0b}.operator-option[aria-current=true]:hover{background:var(--accent-soft)}.preset-switch button:hover{background:var(--ui-fill-hover);color:var(--ink)}.export-actions button:hover,.project-actions button:hover,.project-actions .file-button:hover{background:var(--ui-fill-hover)}.export-download:hover{background:#dce8ff}}@media(max-width:820px){:root{--bar-h: 108px}.masthead{top:10px;left:12px;right:12px}.wordmark{padding-left:2px}.control-bar{left:10px;right:10px;bottom:max(10px,env(safe-area-inset-bottom));width:auto;max-width:none;transform:none;grid-template-columns:minmax(86px,.72fr) minmax(116px,1.28fr) auto;grid-template-rows:54px 54px}.control-bar>*+*{border-left:0}.text-entry{grid-column:1 / -1;grid-row:1;border-bottom:1px solid var(--line);padding-inline:14px}.operator-readout{grid-column:1;grid-row:2;padding-inline:12px}.primary-control{grid-column:2;grid-row:2;grid-template-columns:82px minmax(40px,1fr);gap:8px;padding-inline:10px;border-left:1px solid var(--line)!important}.bar-actions{grid-column:3;grid-row:2;border-left:1px solid var(--line)!important;padding:5px}.details-button{width:44px;padding:0}.details-button span{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.details-panel{right:10px;bottom:calc(128px + env(safe-area-inset-bottom));max-height:calc(100vh - 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158px)}.parameter-pair .number-input,.parameter-row select,.details-meta select{font-size:16px}.render-status{top:62px;max-width:calc(100vw - 24px)}.render-status.is-error{max-width:calc(100vw - 24px)}.fit-button{right:12px;bottom:calc(144px + env(safe-area-inset-bottom))}}@media(max-width:350px){.control-bar{grid-template-columns:78px minmax(82px,1fr) 132px}.operator-readout strong{font-size:11px}.primary-control{padding-inline:7px}}@media(max-height:620px){.operator-menu{max-height:calc(100vh - 160px)}.details-panel{max-height:calc(100vh - 142px)}.export-dialog{max-height:calc(100vh - 16px)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))){.rail-trigger,.control-bar,.fit-button,.restore-ui button{background:#f8fbffe6}.operator-menu,.details-panel,.export-dialog{background:#f8fbfff0}}