.builder{background:var(--soft)}.builder-grid{display:grid;grid-template-columns:minmax(380px,460px) minmax(0,1fr);gap:0;max-width:1600px;margin:0 auto}.b-controls{order:1;padding:24px 24px 60px;background:#fff;border-right:1px solid var(--rule)}.b-stage{order:2}.stage-inner{position:sticky;top:75px;height:calc(100vh - 75px);min-height:520px;display:flex;flex-direction:column;background:radial-gradient(90% 80% at 50% 45%,#34373b,#1a1b1d 55%,#0e0f10);color:#fff}.stage{position:relative;flex:1;min-height:0;touch-action:none;cursor:grab}.stage:active{cursor:grabbing}.stage canvas{position:absolute;inset:0;width:100%;height:100%}.stage .fallback-wrap{position:absolute;inset:0;display:grid;place-items:center;perspective:1400px}.stage .fallback-wrap .fallback-plates{width:86%;display:grid;gap:4%;transition:transform .08s linear}.stage .fallback-wrap canvas{position:static;width:100%;height:auto}.stage-loading{position:absolute;inset:0;display:grid;place-items:center;font:600 13px var(--display);letter-spacing:.14em;text-transform:uppercase;color:var(--muted-on-dark)}.stage-top,.stage-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;flex-wrap:wrap}.stage-bottom{border-top:1px solid rgba(255,255,255,.08)}.stage-hint{font-size:13px;color:var(--muted-on-dark)}.dims{font:600 13px var(--display);letter-spacing:.08em;color:#fff}.stage-tools{display:flex;gap:6px}.tool{width:40px;height:40px;display:grid;place-items:center;background:#ffffff12;border:1px solid rgba(255,255,255,.14);color:#fff;cursor:pointer}.tool:hover{background:var(--brand);border-color:var(--brand)}.seg{display:inline-flex;border:1px solid rgba(255,255,255,.25)}.seg button{background:transparent;border:0;color:#d9dadc;padding:9px 18px;font:600 13px var(--display);letter-spacing:.1em;text-transform:uppercase;cursor:pointer;min-height:40px}.seg button[aria-pressed=true]{background:#fff;color:var(--black)}.seg button:disabled{opacity:.35;cursor:not-allowed}.status-chip{font:700 12px var(--display);letter-spacing:.1em;text-transform:uppercase;padding:7px 12px;display:inline-flex;gap:8px;align-items:center}.status-chip:before{content:"";width:8px;height:8px;border-radius:50%;background:currentColor}.status-chip[data-status=road]{color:#7fd884;background:#3a8a3f2e}.status-chip[data-status=show]{color:#ffb37a;background:#ec58052e}.status-chip[data-status=invalid]{color:#bbb;background:#ffffff14}.step{border:0;margin:0 0 8px;padding:0 0 22px;border-bottom:1px solid var(--rule)}.step+.step{padding-top:20px}.step legend{font:700 italic 19px var(--display);text-transform:uppercase;color:var(--black);display:flex;gap:12px;align-items:center;padding:0;margin-bottom:14px;float:left;width:100%}.step legend~*{clear:both}.step .n{background:var(--brand);color:#fff;width:28px;height:28px;display:inline-grid;place-items:center;font-style:normal;font-size:15px;transform:skew(-12deg)}.reg-input-wrap{background:var(--plate-yellow);border:3px solid var(--black);padding:4px;position:relative}.reg-input{width:100%;border:0;background:transparent;font:700 clamp(32px,4.6vw,46px)/1 var(--display);letter-spacing:.08em;text-align:center;text-transform:uppercase;color:#111;padding:12px 8px}.reg-input::placeholder{color:#11111152}.reg-input:focus{outline:none}.reg-input-wrap:focus-within{box-shadow:0 0 0 3px #ec580566}.reg-msg{font-size:14px;margin:6px 0 0;min-height:1.4em}.reg-msg[data-level=warn]{color:var(--warn)}.reg-msg[data-level=error]{color:var(--bad)}.reg-msg[data-level=ok]{color:var(--ok)}.style-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.opt{position:relative;display:block;cursor:pointer}.opt input{position:absolute;opacity:0;inset:0;cursor:pointer}.opt .opt-body{display:flex;flex-direction:column;gap:3px;border:1.5px solid #d4d6d9;padding:12px 14px;height:100%;transition:border-color .12s,background .12s}.opt:hover .opt-body{border-color:#9aa0a6}.opt input:checked+.opt-body{border-color:var(--brand);background:#fff8f3;box-shadow:inset 3px 0 0 var(--brand)}.opt input:focus-visible+.opt-body{outline:2px solid var(--brand);outline-offset:2px}.opt input:disabled+.opt-body{opacity:.5;cursor:not-allowed}.opt strong{font:700 15px var(--display);color:var(--black);text-transform:uppercase;letter-spacing:.02em}.opt small{font-size:13px;color:var(--muted);line-height:1.35}.opt .price{font:700 13px var(--display);color:var(--brand-ink)}.opt-list{display:grid;gap:8px}.opt-list .opt-body{flex-direction:row;align-items:center;gap:12px}.opt-list .opt-body .grow{flex:1;display:flex;flex-direction:column;gap:2px}.opt-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:8px}.opt-row .opt-body{align-items:center;text-align:center;justify-content:center;padding:10px 8px}.group{margin-bottom:18px}.group>.label{display:block;margin-bottom:8px}.group .hint{margin:6px 0 0}.badge-mini{font:700 10.5px var(--display);letter-spacing:.08em;text-transform:uppercase;padding:3px 7px;white-space:nowrap}.badge-mini.ok{background:#e9f5ea;color:#2b6a2f}.badge-mini.show{background:#fff3e6;color:var(--brand-ink)}.acc{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px dashed var(--rule)}.acc:last-child{border-bottom:0}.acc .grow{flex:1}.acc strong{display:block;font-weight:600}.acc small{color:var(--muted)}.stepper{display:inline-flex;border:1.5px solid #cfd2d6}.stepper button{width:38px;height:40px;border:0;background:#fff;font:700 18px var(--display);cursor:pointer}.stepper button:hover{background:var(--soft)}.stepper input{width:46px;border:0;border-left:1px solid #e3e3e3;border-right:1px solid #e3e3e3;text-align:center;font:700 16px var(--display);-moz-appearance:textfield}.stepper input::-webkit-inner-spin-button{-webkit-appearance:none}.summary{margin-top:24px;background:var(--black);color:#fff;padding:22px;clip-path:polygon(0 0,100% 0,100% calc(100% - 16px),calc(100% - 16px) 100%,0 100%)}.summary h2{color:#fff;font-size:18px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px}.price-table{width:100%;border-collapse:collapse;font-size:14.5px;margin-bottom:12px}.price-table td{padding:6px 0;color:#d0d1d3;vertical-align:top}.price-table td:last-child{text-align:right;font-family:var(--display);color:#fff;white-space:nowrap;padding-left:12px}.price-table tr.sub td{border-top:1px solid #333;padding-top:10px;color:#fff}.qty-row{display:flex;justify-content:space-between;align-items:center;margin:6px 0 14px}.qty-row .label{color:#fff}.summary .stepper{border-color:#444}.summary .stepper button,.summary .stepper input{background:#1b1c1e;color:#fff;border-color:#333}.total-row{display:flex;justify-content:space-between;align-items:baseline;border-top:1px solid #333;padding-top:14px;margin-bottom:16px}.total-row span{font:600 14px var(--display);text-transform:uppercase;letter-spacing:.1em;color:var(--muted-on-dark)}.total-row strong{font:700 32px var(--display)}.summary .hint{color:var(--muted-on-dark)}.issues{display:grid;gap:8px;margin-bottom:14px}.issue{font-size:13.5px;padding:9px 12px;border-left:3px solid;line-height:1.4}.issue.warn{border-color:#f0a14a;background:#f0a14a1f;color:#ffd9b0}.issue.error{border-color:#e2685a;background:#e2685a1f;color:#ffc7c0}.issue.info{border-color:#6f8fbf;background:#6f8fbf1f;color:#d4e0f2}dialog.added{border:0;padding:28px;max-width:520px;width:calc(100% - 32px);clip-path:polygon(0 0,100% 0,100% calc(100% - 18px),calc(100% - 18px) 100%,0 100%)}dialog.added::backdrop{background:#0009}dialog.added h2{font-style:italic;text-transform:uppercase;margin-bottom:14px}dialog.added img{width:100%;margin-bottom:14px;background:#17181a}@media (max-width: 900px){.builder-grid{grid-template-columns:1fr}.b-stage{order:1;position:sticky;top:64px;z-index:5}.b-controls{order:2;border-right:0;padding:20px 16px 40px}.stage-inner{position:static;height:42vh;min-height:280px;max-height:420px}.stage-top,.stage-bottom{padding:8px 12px}.stage-hint{display:none}.status-chip{font-size:10.5px;padding:6px 9px}.seg button{padding:7px 12px;min-height:36px}.style-grid{grid-template-columns:1fr 1fr}}@media (max-width: 380px){.style-grid{grid-template-columns:1fr}}.size-group{display:block;font:600 11.5px var(--display);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:10px 0 -2px}.size-group:first-child{margin-top:0}.plate-size{padding:14px;background:var(--soft)}.opt-row.compact{grid-template-columns:repeat(auto-fit,minmax(84px,1fr));gap:6px}.opt-row.compact .opt-body{padding:9px 6px;background:#fff}.opt-row.compact strong{font-size:14px}.opt-row.compact small{font-size:12px}.opt-row.sub{margin-top:6px}.opt-row.sub .opt-body{padding:7px 4px}.opt-row.sub strong{font-size:13px;font-weight:600}.plate-status{margin:8px 0 0;font-size:13px}.plate-status:before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:7px;background:currentColor}.plate-status.ok{color:var(--ok)}.plate-status.show{color:var(--brand-ink)}