:root{--bg: #121416;--bg-2: #1a1d21;--panel: #22262b;--line: #343a42;--text: #f3f1ec;--muted: #9a9690;--red: #e30613;--red-deep: #b0000c;--yellow: #ffd60a;--focus: #5ad0ff;--radius: 10px;--font: "DM Sans", system-ui, sans-serif;--display: "Space Grotesk", "DM Sans", sans-serif}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:var(--font)}body{background:radial-gradient(900px 500px at 10% -10%,rgba(227,6,19,.18),transparent 55%),radial-gradient(700px 400px at 100% 0%,rgba(90,208,255,.08),transparent 50%),var(--bg)}.app{display:grid;grid-template-columns:minmax(260px,320px) 1fr;height:100%;min-height:0}@media(max-width:900px){.app{grid-template-columns:1fr;grid-template-rows:auto 1fr;height:auto;min-height:100%}}.sidebar{display:flex;flex-direction:column;gap:1rem;padding:1.25rem;border-right:1px solid var(--line);background:color-mix(in srgb,var(--bg-2) 88%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);overflow:auto}.brand h1{margin:0;font-family:var(--display);font-size:1.85rem;font-weight:700;letter-spacing:-.04em;line-height:1}.brand h1 span{color:var(--red)}.brand p{margin:.45rem 0 0;color:var(--muted);font-size:.88rem;line-height:1.4}.dropzone{display:grid;place-items:center;gap:.2rem;padding:1.35rem 1rem;border:1.5px dashed color-mix(in srgb,var(--red) 55%,var(--line));border-radius:var(--radius);background:color-mix(in srgb,var(--red) 8%,transparent);cursor:pointer;transition:border-color .2s,background .2s,transform .2s}.dropzone strong{font-family:var(--display);font-size:1rem}.dropzone span{color:var(--muted);font-size:.8rem}.dropzone:hover,.dropzone:focus-visible,.dropzone.dragover{outline:none;border-color:var(--red);background:color-mix(in srgb,var(--red) 16%,transparent);transform:translateY(-1px)}.field{display:grid;gap:.35rem}.field-row{display:flex;justify-content:space-between;align-items:baseline;font-size:.82rem;color:var(--muted)}.field-row span{color:var(--text);font-variant-numeric:tabular-nums;font-weight:600}input[type=range]{width:100%;accent-color:var(--red)}.check{display:flex;align-items:center;gap:.55rem;font-size:.84rem;color:var(--muted);cursor:pointer;-webkit-user-select:none;user-select:none}.check input{accent-color:var(--red);width:1rem;height:1rem}.stats{display:grid;grid-template-columns:1fr 1fr;gap:.5rem;padding:.75rem 0 0;border-top:1px solid var(--line);font-size:.8rem;color:var(--muted)}.stats em{display:block;font-style:normal;font-family:var(--display);font-size:1.05rem;color:var(--text);font-weight:700}.block h2{margin:0 0 .55rem;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600}.step-help{margin:-.25rem 0 .65rem;font-size:.78rem;color:var(--muted);line-height:1.35}.parts{list-style:none;margin:0;padding:0;display:grid;gap:.35rem;max-height:220px;overflow:auto}.parts.compact{max-height:140px}.parts li{display:grid;grid-template-columns:18px 1fr auto;gap:.55rem;align-items:center;font-size:.84rem}.swatch{width:18px;height:18px;border-radius:4px;border:1px solid rgba(255,255,255,.12);box-shadow:inset 0 0 0 1px #00000040}.parts .qty{font-variant-numeric:tabular-nums;color:var(--muted)}.step-nav{display:grid;grid-template-columns:auto 1fr auto;gap:.5rem;align-items:center;margin-bottom:.65rem}.step-nav button{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:7px;padding:.35rem .65rem;font:inherit;font-size:.8rem;font-weight:600;cursor:pointer}.step-nav button:hover:not(:disabled){border-color:var(--muted)}.step-nav button:disabled{opacity:.4;cursor:default}#stepLabel{text-align:center;font-size:.85rem;font-weight:600}.workspace{display:grid;grid-template-rows:1fr 1.15fr;min-height:0;min-width:0}@media(max-width:900px){.workspace{min-height:70vh}}.view{display:flex;flex-direction:column;min-height:0;border-bottom:1px solid var(--line)}.view:last-child{border-bottom:none}.view>header{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;padding:.65rem 1rem;background:color-mix(in srgb,var(--panel) 70%,transparent);border-bottom:1px solid var(--line)}.view>header h2{margin:0;font-family:var(--display);font-size:.95rem;font-weight:600}.view>header .hint{color:var(--muted);font-size:.75rem}.view-body{position:relative;flex:1;min-height:0;display:grid;place-items:center;padding:.75rem;overflow:hidden}.empty{margin:0;color:var(--muted);font-size:.92rem;text-align:center;max-width:240px;line-height:1.45}#preview2d{max-width:100%;max-height:100%;image-rendering:pixelated;border-radius:6px;box-shadow:0 12px 40px #00000059}#viewport{width:100%;height:100%;display:block;touch-action:none}