:root{color-scheme:light;--bg: #f7f8fa;--surface: #ffffff;--ink: #111827;--ink-soft: #4b5563;--ink-muted: #6b7280;--line: #e5e7eb;--line-soft: #f3f4f6;--accent: #1e3a5f;--accent-hover: #152a45;--accent-soft: #eef4fb;--radius-lg: 20px;--radius-md: 14px;--radius-sm: 10px;--shadow-sm: 0 1px 2px rgba(17, 24, 39, .04);--shadow-md: 0 12px 40px rgba(17, 24, 39, .08);--shadow-lg: 0 24px 60px rgba(17, 24, 39, .1);--max-width: 760px;font-family:Inter,Segoe UI,system-ui,-apple-system,sans-serif;line-height:1.5;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg)}.wizard-shell{max-width:var(--max-width);margin:0 auto;padding:32px 20px 48px}.site-header{text-align:center;margin-bottom:28px}.site-eyebrow{margin:0 0 8px;font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-muted)}.site-title{margin:0;font-size:clamp(1.75rem,4vw,2.25rem);font-weight:700;letter-spacing:-.03em;color:var(--ink)}.site-tagline{margin:10px auto 0;max-width:34rem;font-size:1rem;color:var(--ink-soft)}.wizard-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:24px}.wizard-step{display:flex;flex-direction:column;align-items:center;gap:8px;padding:12px 8px;border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--line);color:var(--ink-muted);transition:border-color .2s,background .2s,color .2s}.wizard-step.is-active{border-color:#c7d9ef;background:var(--accent-soft);color:var(--ink);box-shadow:var(--shadow-sm)}.wizard-step.is-complete{color:var(--ink-soft)}.wizard-step-badge{width:28px;height:28px;border-radius:999px;display:grid;place-items:center;font-size:.8rem;font-weight:700;background:var(--line-soft);color:var(--ink-muted)}.wizard-step.is-active .wizard-step-badge{background:var(--accent);color:#fff}.wizard-step.is-complete .wizard-step-badge{background:#dbeafe;color:var(--accent)}.wizard-step-label{font-size:.82rem;font-weight:600}.wizard-main{display:flex;flex-direction:column;gap:16px}.wizard-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:28px 24px 32px}.wizard-card-preview{padding-bottom:28px}.wizard-card-head{text-align:center;margin-bottom:24px}.wizard-card-head h2{margin:0;font-size:1.35rem;font-weight:700;letter-spacing:-.02em}.wizard-card-head p{margin:8px 0 0;color:var(--ink-soft);font-size:.95rem}.upload-dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;min-height:280px;padding:32px 24px;border:2px dashed #d1d5db;border-radius:var(--radius-md);background:linear-gradient(180deg,#fafbfc,#fff);cursor:pointer;transition:border-color .2s,background .2s}.upload-dropzone:hover,.upload-dropzone:focus-visible{border-color:#93b4d4;background:var(--accent-soft);outline:none}.upload-dropzone-icon{color:var(--accent);margin-bottom:4px}.upload-dropzone-title{margin:0;font-size:1.05rem;font-weight:650}.upload-dropzone-sub{margin:0;color:var(--ink-muted);font-size:.92rem}.upload-dropzone-note{margin:8px 0 0;font-size:.82rem;color:var(--ink-muted)}.demo-room-row{margin-top:24px;padding-top:20px;border-top:1px solid var(--line-soft)}.demo-room-label{margin:0 0 12px;text-align:center;font-size:.82rem;color:var(--ink-muted)}.demo-room-options{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}.demo-room-chip{display:flex;align-items:center;gap:10px;padding:6px 12px 6px 6px;border-radius:999px;border:1px solid var(--line);background:#fff;font:inherit;font-size:.82rem;color:var(--ink-soft);cursor:pointer;transition:border-color .15s,box-shadow .15s}.demo-room-chip:hover:not(:disabled){border-color:#c7d9ef;box-shadow:var(--shadow-sm)}.demo-room-chip img{width:36px;height:36px;border-radius:999px;object-fit:cover}.room-hero{position:relative;margin-bottom:24px;border-radius:var(--radius-md);overflow:hidden;background:#111827;box-shadow:var(--shadow-sm)}.room-hero-image{display:block;width:100%;max-height:320px;object-fit:cover}.room-hero .btn-text{position:absolute;top:12px;right:12px;background:#ffffffeb;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.material-picker{display:flex;flex-direction:column;gap:16px}.material-toolbar{display:flex;flex-direction:column;gap:12px}.material-search{width:100%;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--line);font:inherit;background:#fff}.material-search:focus{outline:2px solid #c7d9ef;border-color:#93b4d4}.filter-chips{display:flex;flex-wrap:wrap;gap:8px}.filter-chip{padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;font:inherit;font-size:.82rem;font-weight:600;color:var(--ink-soft);cursor:pointer;transition:all .15s}.filter-chip.active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.filter-chip-muted{font-weight:500}.material-count{margin:0;font-size:.82rem;color:var(--ink-muted)}.selected-swatch{display:flex;align-items:center;gap:14px;padding:12px 14px;border-radius:var(--radius-sm);background:var(--accent-soft);border:1px solid #c7d9ef}.selected-swatch img{width:56px;height:56px;border-radius:10px;object-fit:cover}.selected-swatch strong{display:block;font-size:.95rem}.selected-swatch span{font-size:.82rem;color:var(--ink-muted)}.swatch-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(108px,1fr));gap:12px;max-height:360px;overflow:auto;padding:2px}.swatch-card{display:flex;flex-direction:column;gap:8px;padding:8px;border-radius:var(--radius-sm);border:2px solid transparent;background:#fafbfc;text-align:left;cursor:pointer;transition:border-color .15s,transform .15s,box-shadow .15s}.swatch-card:hover:not(:disabled){transform:translateY(-1px);box-shadow:var(--shadow-sm)}.swatch-card.selected{border-color:var(--accent);background:var(--accent-soft)}.swatch-image-wrap{display:block;border-radius:8px;overflow:hidden;aspect-ratio:1;background:#e5e7eb}.swatch-image-wrap img{width:100%;height:100%;object-fit:cover;display:block}.swatch-name{font-size:.78rem;font-weight:650;line-height:1.25;color:var(--ink)}.wizard-actions{margin-top:24px}.preview-material-name{margin:6px 0 0;font-size:1rem;font-weight:600;color:var(--accent)}.preview-loading{min-height:320px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center}.preview-loading-title{margin:0;font-weight:650}.preview-loading-sub{margin:0;color:var(--ink-muted);font-size:.9rem}.disclaimer-inline{margin:16px 0 0;text-align:center;font-size:.82rem;color:var(--ink-muted)}.preview-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:20px}.site-footer{margin-top:32px;text-align:center}.site-footer p{margin:0;font-size:.78rem;color:var(--ink-muted);line-height:1.5}.btn{font:inherit;border-radius:var(--radius-sm);padding:11px 18px;border:1px solid transparent;cursor:pointer;font-weight:600;transition:background .15s,border-color .15s,transform .1s}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-secondary{background:#fff;border-color:var(--line);color:var(--ink)}.btn-secondary:hover:not(:disabled){border-color:#cbd5e1;background:#f9fafb}.btn-text{padding:8px 12px;font-size:.82rem;background:#fff;border:1px solid var(--line);color:var(--ink-soft)}.btn-xl{width:100%;padding:14px 20px;font-size:1rem;border-radius:12px}.alert{padding:12px 14px;border-radius:var(--radius-sm);font-size:.9rem;margin-bottom:16px}.alert-error{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c}.alert-warn{background:#fffbeb;border:1px solid #fde68a;color:#92400e}.empty-hint{margin:0;text-align:center;font-size:.88rem;color:var(--ink-muted)}.pv-ba-slider{position:relative;overflow:hidden;border-radius:var(--radius-md);cursor:ew-resize;touch-action:none;-webkit-user-select:none;user-select:none;box-shadow:var(--shadow-lg);background:#111827;width:100%;aspect-ratio:4 / 3}.pv-ba-layer{position:absolute;inset:0}.pv-ba-layer img{display:block;object-fit:cover;width:100%;height:100%}.pv-ba-before{z-index:2}.pv-ba-after{z-index:1}.pv-ba-handle{position:absolute;top:0;bottom:0;z-index:3;width:3px;margin-left:-1.5px;background:#fff;box-shadow:0 0 0 1px #1118271f}.pv-ba-handle-grip{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:42px;height:42px;border-radius:999px;background:#fff;border:2px solid var(--accent);box-shadow:0 4px 16px #11182729}.pv-ba-handle-grip:before,.pv-ba-handle-grip:after{content:"";position:absolute;top:50%;width:0;height:0;border-top:5px solid transparent;border-bottom:5px solid transparent;transform:translateY(-50%)}.pv-ba-handle-grip:before{left:9px;border-right:6px solid var(--accent)}.pv-ba-handle-grip:after{right:9px;border-left:6px solid var(--accent)}.pv-ba-handle-label{position:absolute;top:14px;font-size:.68rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#fff;background:#1118278c;padding:5px 10px;border-radius:999px;white-space:nowrap}.pv-ba-label-before{right:calc(100% + 10px)}.pv-ba-label-after{left:calc(100% + 10px)}.spinner{width:44px;height:44px;border-radius:999px;border:3px solid #e5e7eb;border-top-color:var(--accent);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}@media(max-width:640px){.wizard-shell{padding:20px 16px 40px}.wizard-card{padding:22px 16px 26px}.wizard-steps{gap:6px}.wizard-step-label{font-size:.75rem}.upload-dropzone{min-height:240px;padding:24px 16px}.swatch-grid{grid-template-columns:repeat(auto-fill,minmax(92px,1fr));max-height:300px}.preview-actions{flex-direction:column}.preview-actions .btn{width:100%}}