:root{--bg:#fff;--surface:#f5f5f5;--border:#ddd;--text:#111;--accent:#06c;--flash:#2c6;font-family:system-ui,sans-serif}body{background:var(--bg);color:var(--text);margin:0}#github-link{color:var(--text);opacity:.6;line-height:0;transition:opacity .2s;position:fixed;top:1rem;right:1rem}#github-link:hover{opacity:1}#app{max-width:640px;margin:2rem auto;padding:0 1rem}#controls{flex-wrap:wrap;align-items:center;gap:1rem;margin-bottom:1.5rem;display:flex}#controls label{font-size:.9rem}.unit-row{grid-template-columns:160px 1fr auto;align-items:center;gap:.5rem;margin-bottom:.4rem;display:grid}.unit-label{color:#555;text-align:right;font-size:.85rem}.unit-symbol{color:#888;font-size:.75rem}.unit-input{border:1px solid var(--border);background:var(--surface);box-sizing:border-box;border-radius:4px;width:100%;padding:.3rem .5rem;font-family:monospace;font-size:.95rem}.unit-input:focus{outline:2px solid var(--accent);background:#fff}.copy-btn{border:1px solid var(--border);background:var(--surface);cursor:pointer;white-space:nowrap;border-radius:4px;padding:.25rem .5rem;font-size:.75rem}.copy-btn.flashed{background:var(--flash);color:#fff;border-color:var(--flash)}#csv-btn{border:1px solid var(--accent);color:var(--accent);cursor:pointer;background:0 0;border-radius:4px;padding:.3rem .75rem;font-size:.85rem}#csv-btn:hover{background:var(--accent);color:#fff}select,input[type=number]{border:1px solid var(--border);background:var(--surface);border-radius:4px;padding:.25rem .4rem;font-size:.9rem}#em-spectrum{border-top:1px solid var(--border);margin-top:2rem;padding-top:1rem}.spectrum-regions{color:#777;user-select:none;margin-bottom:3px;font-size:.6rem;display:flex}.spectrum-regions span{text-align:center}.spectrum-bar-wrap{background:linear-gradient(90deg,#111 0%,#408 16.67%,#70c 49.38%,#40f 50%,#00f 53.51%,#0cf 56.65%,#0f4 59.49%,#ff0 62.08%,#f60 64.46%,#f20 66.67%,red 67.1%,#c20 67.1%,#820 77%,#410 83.33%,#210 100%);border-radius:4px;height:20px;margin-bottom:5px;position:relative}.spectrum-pointer{background:var(--text);pointer-events:none;width:2px;height:32px;display:none;position:absolute;top:-6px;transform:translate(-50%)}.spectrum-pointer-label{background:var(--text);color:var(--bg);white-space:nowrap;border-radius:3px;padding:2px 6px;font-size:.6rem;position:absolute;top:-24px;transform:translate(-50%)}.spectrum-ticks{color:#aaa;justify-content:space-between;font-size:.58rem;display:flex}#site-footer{text-align:center;color:#888;opacity:.7;padding:1rem 0 .5rem;font-size:.6rem}#site-footer a{color:inherit;text-decoration:underline}@media (width>=900px){#app{max-width:860px}.unit-row{grid-template-columns:200px 1fr auto}}@media (width<=480px){#app{margin:1rem auto}.unit-row{grid-template-rows:auto auto;grid-template-columns:1fr auto}.unit-label{text-align:left;grid-column:1/-1}.unit-input{grid-column:1}.copy-btn{grid-column:2}}