:root{--bg: #fbfaf8;--surface: #ffffff;--sheet: #f4f2ee;--border: #e7e4de;--border-strong: #d6d2ca;--border-hover: #b9b4aa;--text: #1d1c1a;--text-muted: #6e6a62;--ink: #1d1c1a;--ink-hover: #35322e;--accent: #b57712;--accent-tint: #faf3e4;--success: #1a7f4e;--success-tint: #eaf5ee;--success-border: #c4e0cf;--warn: #8a6a1c;--warn-tint: #f9f2dd;--warn-border: #e8d9ad;--danger: #b23a31;--danger-tint: #faedeb;--danger-border: #ecc8c3;--ring: #1d1c1a;--radius-control: 6px;--radius-chip: 4px;--radius-sheet: 10px;--shadow-float: 0 1px 3px rgba(29, 28, 26, .06);--font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace}@media (prefers-color-scheme: dark){:root{--bg: #151412;--surface: #1e1c19;--sheet: #100f0e;--border: #2b2823;--border-strong: #3b372f;--border-hover: #55503f;--text: #eae7e1;--text-muted: #a29b8f;--ink: #ecebe8;--ink-hover: #d6d2ca;--accent: #e0a33c;--accent-tint: #2b2110;--success: #5cc48c;--success-tint: #14231b;--success-border: #294534;--warn: #d9b45e;--warn-tint: #272012;--warn-border: #4c3f1f;--danger: #e07a70;--danger-tint: #2b1815;--danger-border: #55302b;--ring: #eae7e1;--shadow-float: 0 1px 3px rgba(0, 0, 0, .45)}}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-ui);font-size:14px;line-height:1.5;overflow-x:clip;-webkit-font-smoothing:antialiased}h1,h2{margin:0;font-weight:600}h2{font-size:11px;text-transform:uppercase;letter-spacing:.09em;color:var(--text-muted);font-weight:600}p{margin:0}:focus-visible{outline:2px solid var(--ring);outline-offset:2px;border-radius:var(--radius-control)}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.app{display:flex;flex-direction:column;height:100%;min-height:100dvh;width:100%;min-width:0;overflow-x:clip}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:calc(12px + env(safe-area-inset-top)) 20px 12px;border-bottom:1px solid var(--border);background:var(--bg)}.brand{display:flex;align-items:center;gap:10px}a.brand{text-decoration:none;color:inherit}.brand-mark{width:24px;height:24px;display:block;flex-shrink:0}.brand h1{font-size:14px;letter-spacing:-.01em}.brand-sub{color:var(--text-muted);font-weight:400}.layout{display:grid;grid-template-columns:380px 1fr;flex:1;min-height:0;min-width:0}.sidebar{overflow-y:auto;padding:4px 20px 24px;display:flex;flex-direction:column;border-right:1px solid var(--border);min-width:0}@media (max-width: 860px){html,body,#root{height:auto;min-height:100%}.app{height:auto;min-height:100dvh}.topbar{position:sticky;top:0;z-index:20;padding:calc(10px + env(safe-area-inset-top)) 14px 10px}.layout{display:flex;flex-direction:column;flex:none;min-height:auto;width:100%;max-width:100vw}.sidebar{order:2;width:100%;max-width:100vw;overflow:visible;padding:0 16px calc(24px + env(safe-area-inset-bottom));border-right:none;border-top:1px solid var(--border)}.stage{order:1;flex:none;width:100%;max-width:100vw;height:clamp(280px,48svh,420px);min-height:280px}.app-empty .sidebar{order:1;border-top:none}.app-empty .stage{order:2;height:clamp(260px,38svh,360px);min-height:260px}}.panel{padding:20px 0;display:flex;flex-direction:column;gap:12px}.panel+.panel{border-top:1px solid var(--border)}.panel-header{display:flex;align-items:center;justify-content:space-between}.stack{display:flex;flex-direction:column;gap:12px}@media (max-width: 860px){.panel{padding:18px 0}.panel-header{gap:12px}}textarea,input[type=text],input[type=email],input[type=number],select{width:100%;background:var(--surface);color:var(--text);border:1px solid var(--border-strong);border-radius:var(--radius-control);padding:8px 10px;font:inherit;transition:border-color .14s ease}textarea:hover,input:hover,select:hover{border-color:var(--border-hover)}textarea{resize:vertical;min-height:64px}textarea:disabled,input:disabled{opacity:.55}input[type=number]{-moz-appearance:textfield;-webkit-appearance:textfield;appearance:textfield}input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.field{display:flex;flex-direction:column;gap:4px;flex:1;min-width:0}.field label,.field-label{font-size:12px;color:var(--text-muted)}.field-row{display:flex;gap:10px}.field-qty{max-width:136px}.field-state,.field-country{max-width:80px}.hint-inline{color:var(--text-muted);font-weight:400}form{display:flex;flex-direction:column;gap:10px}@media (max-width: 520px){textarea{min-height:92px}textarea,input[type=text],input[type=email],input[type=number],select{min-height:40px}.field-row{flex-direction:column;gap:12px}.field-qty,.field-state,.field-country{max-width:none}.btn-row{flex-direction:column}.btn-ghost,.example-chip,.stepper{min-height:40px}input[type=range]{height:40px}.stepper-btn{width:40px}.swatch{width:40px;height:40px}}.btn{font:inherit;font-weight:600;border-radius:var(--radius-control);border:1px solid transparent;padding:9px 14px;min-height:40px;cursor:pointer;transition:background-color .14s ease,border-color .14s ease,color .14s ease}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--ink);color:var(--surface)}.btn-primary:hover:not(:disabled){background:var(--ink-hover)}.btn-secondary{background:var(--surface);color:var(--text);border-color:var(--border-strong)}.btn-secondary:hover:not(:disabled){border-color:var(--text-muted)}.btn-ghost{background:transparent;color:var(--text-muted);padding:6px 10px;min-height:34px}.btn-ghost:hover:not(:disabled){color:var(--text)}.btn-row{display:flex;gap:10px}.btn-row .btn{flex:1}.hint{font-size:12px;color:var(--text-muted)}.history{margin:0;padding:0 0 0 18px;display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--text-muted);max-height:120px;overflow-y:auto}.history li{overflow-wrap:anywhere}.examples{display:flex;flex-direction:column;gap:2px;min-width:0}.example-chip{display:block;width:100%;max-width:100%;min-width:0;font:inherit;font-size:12.5px;text-align:left;white-space:normal;color:var(--text-muted);background:transparent;border:none;border-radius:var(--radius-chip);padding:7px 8px;cursor:pointer;overflow-wrap:anywhere;word-break:break-word;transition:background-color .14s ease,color .14s ease}.example-chip:before{content:"↳  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var(--ring);outline-offset:2px}.stepper input[type=number]{flex:1;min-width:0;border:none;border-radius:0;text-align:center;font-variant-numeric:tabular-nums}.stepper input[type=number]:focus-visible{outline:none}.stepper-btn{font:inherit;font-size:15px;line-height:1;width:32px;flex-shrink:0;background:transparent;color:var(--text);border:none;cursor:pointer;transition:background-color .12s ease}.stepper-btn:first-child{border-right:1px solid var(--border)}.stepper-btn:last-child{border-left:1px solid var(--border)}.stepper-btn:hover:not(:disabled){background:var(--sheet)}.stepper-btn:focus-visible{outline:2px solid var(--ring);outline-offset:-2px;border-radius:0}.stepper-btn:disabled{opacity:.4;cursor:not-allowed}.swatches{display:flex;flex-wrap:wrap;gap:8px;padding-top:2px}.swatch{width:26px;height:26px;border-radius:50%;border:1px solid var(--border-strong);cursor:pointer;padding:0;transition:transform .12s ease,box-shadow .12s ease}.swatch:hover{transform:scale(1.12)}.swatch-selected{box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--accent)}.quote{display:flex;flex-direction:column;gap:8px;font-size:13px}.quote table{width:100%;border-collapse:collapse;font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:12px}.quote th,.quote td{text-align:right;padding:6px 8px;border-bottom:1px solid var(--border)}.quote th{color:var(--text-muted);font-family:var(--font-ui);font-size:10.5px;font-weight:600;text-transform:uppercase;letter-spacing:.07em}.quote .active-break td{color:var(--accent);background:var(--accent-tint)}.quote-price{display:flex;align-items:baseline;gap:8px}.quote-amount{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:22px;font-weight:600;letter-spacing:-.01em}.quote-note{font-size:12px;color:var(--text-muted)}.alert{border-radius:var(--radius-control);padding:10px 12px;font-size:13px;display:flex;flex-direction:column;gap:8px;border:1px 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24px;color:var(--text-muted)}.viewer-fallback p{max-width:280px;background:color-mix(in srgb,var(--surface) 92%,transparent);border:1px solid var(--border);border-radius:var(--radius-control);padding:10px 12px;box-shadow:var(--shadow-float)}.dim-label{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:10.5px;color:var(--text-muted);background:color-mix(in srgb,var(--sheet) 88%,transparent);border:1px solid var(--border);border-radius:var(--radius-chip);padding:0 5px;line-height:16px;white-space:nowrap}.dim-label-feature{color:var(--text);border-color:var(--border-strong)}.stage-overlay{position:absolute;top:14px;right:14px;bottom:14px;left:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;padding:24px;pointer-events:none}.stage-overlay .alert,.stage-overlay .btn{pointer-events:auto}.stage-overlay .alert{max-width:480px}.stage-overlay-top{justify-content:flex-start;padding-top:88px}.stage-welcome{display:flex;flex-direction:column;align-items:center;gap:8px;max-width:520px;background:color-mix(in srgb,var(--surface) 90%,transparent);border:1px solid var(--border);border-radius:var(--radius-sheet);padding:18px 26px;box-shadow:var(--shadow-float);-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.stage-empty-title{font-size:20px;font-weight:600;letter-spacing:-.015em}.stage-empty-body{color:var(--text-muted);max-width:420px}.stage-hud{position:absolute;top:28px;left:28px;display:flex;flex-direction:column;gap:2px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-control);padding:8px 12px;box-shadow:var(--shadow-float)}.hud-name{font-weight:600;font-size:13px;letter-spacing:-.01em}.hud-dims{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:12px;color:var(--text-muted)}.hud-warning{margin-top:4px;max-width:300px;font-size:12px;color:var(--warn)}.stage-actions{position:absolute;top:28px;right:28px;display:flex;align-items:center;gap:8px}.stage-export{font:inherit;font-family:var(--font-mono);font-size:12px;font-weight:600;padding:6px 10px;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-control);box-shadow:var(--shadow-float);cursor:pointer;transition:border-color .14s ease}.stage-export:hover{border-color:var(--border-strong)}.stage-units{display:flex;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-control);box-shadow:var(--shadow-float);overflow:hidden}.stage-units button{font:inherit;font-family:var(--font-mono);font-size:12px;font-weight:600;padding:6px 10px;background:transparent;color:var(--text-muted);border:none;cursor:pointer;transition:background-color .14s ease,color .14s ease}.stage-units button+button{border-left:1px solid var(--border)}.stage-units button[aria-pressed=true]{background:var(--ink);color:var(--surface)}.stage-units button:hover:not([aria-pressed=true]){color:var(--text)}.stage-explanation{position:absolute;bottom:28px;left:28px;right:28px;margin:0 auto;max-width:640px;font-size:12px;color:var(--text-muted);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-control);padding:8px 12px;box-shadow:var(--shadow-float)}@media (max-width: 860px){.stage{padding:10px}.viewer{border-radius:var(--radius-control)}.stage-overlay{top:10px;right:10px;bottom:10px;left:10px;align-items:stretch;padding:16px}.stage-overlay-top{display:none}.stage-hud{top:20px;left:20px;right:116px;max-width:none;padding:7px 10px}.stage-actions{top:20px;right:20px;flex-direction:column;align-items:flex-end}.hud-dims,.hud-warning{overflow-wrap:anywhere}.stage-explanation{bottom:20px;left:20px;right:20px;font-size:11px;padding:6px 10px;max-height:72px;overflow:auto}.gen-pill{top:20px;left:20px;right:20px;transform:none;border-radius:var(--radius-control);padding:8px 12px}.gen-pill-content{width:100%;justify-content:center;gap:8px}}@media (max-width: 420px){.stage{height:clamp(260px,44svh,340px);min-height:260px}.app-empty .stage{height:240px;min-height:240px}.dim-label{font-size:9.5px;line-height:15px;padding:0 4px}}.gen-full{display:flex;flex-direction:column;align-items:center;gap:18px}.gen-full .gen-stage{font-size:15px;font-weight:600;letter-spacing:-.01em}.gen-full .gen-elapsed{font-size:12px;color:var(--text-muted);font-family:var(--font-mono);font-variant-numeric:tabular-nums}.gen-pill{position:absolute;top:28px;left:50%;transform:translate(-50%);background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:8px 16px;box-shadow:var(--shadow-float);pointer-events:none}.gen-pill-content{display:inline-flex;align-items:center;gap:12px;font-size:13px}.gen-pill .cube-spinner{--cube: 14px}.gen-pill .gen-elapsed{color:var(--text-muted);font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:12px}.cube-spinner{--cube: 36px;width:var(--cube);height:var(--cube);display:inline-block;perspective:calc(var(--cube) * 6);transform-style:preserve-3d;transform:rotateX(-22deg) rotateY(-32deg)}.cube-spinner i{position:absolute;top:0;right:0;bottom:0;left:0;border:1.5px solid var(--accent);background:color-mix(in srgb,var(--accent) 7%,transparent)}.cube-spinner i:nth-child(1){transform:rotateY(0) translateZ(calc(var(--cube) / 2))}.cube-spinner i:nth-child(2){transform:rotateY(90deg) translateZ(calc(var(--cube) / 2))}.cube-spinner i:nth-child(3){transform:rotateY(180deg) translateZ(calc(var(--cube) / 2))}.cube-spinner i:nth-child(4){transform:rotateY(270deg) translateZ(calc(var(--cube) / 2))}.cube-spinner i:nth-child(5){transform:rotateX(90deg) translateZ(calc(var(--cube) / 2))}.cube-spinner i:nth-child(6){transform:rotateX(-90deg) translateZ(calc(var(--cube) / 2))}@media (prefers-reduced-motion: no-preference){.cube-spinner{animation:cube-spin 3.6s linear infinite}.gen-stage{animation:stage-fade .3s ease}}@media (prefers-reduced-motion: reduce){*{transition-duration:.01ms!important}}@keyframes cube-spin{0%{transform:rotateX(-22deg) rotateY(0)}to{transform:rotateX(-22deg) rotateY(360deg)}}@keyframes stage-fade{0%{opacity:0;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}