:root{color-scheme:dark;--bg:#090b0f;--panel:#10131a;--line:#2a303a;--text:#e8edf5;--mute:#77808e;--hot:#ff4d6d}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;min-height:100vh}header{height:64px;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 28px;gap:32px;font-size:10px;letter-spacing:.16em;color:var(--mute)}.logo{font-family:Arial,sans-serif;color:var(--text);font-size:20px;text-decoration:none;font-weight:800;letter-spacing:-.04em;margin-right:auto}.logo i{color:var(--hot);font-style:normal}main{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(330px,.65fr);min-height:calc(100vh - 64px)}.stage{padding:28px 3vw 22px;border-right:1px solid var(--line);display:flex;flex-direction:column;min-width:0}.eyebrow{font-size:10px;letter-spacing:.16em;color:var(--mute);display:flex;justify-content:space-between}.eyebrow b{color:var(--text)}.canvas-wrap{position:relative;width:min(72vh,92%);aspect-ratio:1;margin:auto}.canvas-wrap:before{content:"360°";position:absolute;right:-34px;top:49%;font-size:9px;color:var(--mute)}canvas{width:100%;height:100%;display:block;cursor:crosshair}.cross{position:absolute;background:rgba(255,255,255,.08);pointer-events:none}.cross.x{height:1px;left:0;right:0;top:50%}.cross.y{width:1px;top:0;bottom:0;left:50%}.hint{text-align:center;color:var(--mute);font-size:10px;margin:8px 0 0}aside{padding:28px 32px;background:var(--panel)}.color-entry{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:46px;font-size:11px;color:var(--mute)}.color-entry span{font-size:9px}.color-entry input{grid-column:1/-1;background:transparent;border:0;border-bottom:1px solid var(--line);color:var(--text);font:600 28px ui-monospace,monospace;padding:9px 0;outline:0;text-transform:uppercase}.color-entry input:focus{border-color:var(--hot)}.error{height:16px;color:#ff8da2;font-size:10px}.swatch{height:96px;background:var(--hot);display:flex;align-items:flex-end;padding:12px;margin:18px 0 12px;transition:background .15s}.swatch span{background:#090b0f;color:#fff;padding:5px 7px;font-size:10px}dl{margin:0;border-top:1px solid var(--line)}dl>div{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding:14px 0}dt{font-size:9px;color:var(--mute)}dd{margin:0;text-align:right}dd strong{display:block;font-size:15px}dd small{color:var(--mute);font-size:8px}.range{display:flex;align-items:center;gap:12px;margin:20px 0}.range>span{width:10px;height:10px;border-radius:50%;background:#6effac;box-shadow:0 0 16px #6effac}.range b,.range small{display:block;font-size:10px}.range small{color:var(--mute);font-size:8px;margin-top:3px}.remember{display:flex;gap:8px;color:var(--mute);font-size:9px;align-items:center;margin:22px 0}button{width:100%;padding:13px;background:transparent;border:1px solid var(--text);color:var(--text);font:700 10px monospace;letter-spacing:.12em;cursor:pointer}button:hover{background:var(--text);color:var(--bg)}#toast{position:fixed;bottom:22px;right:22px;background:#fff;color:#090b0f;padding:10px 14px;font-size:10px;opacity:0;transform:translateY(10px);transition:.2s}#toast.show{opacity:1;transform:none}@media(max-width:760px){header{padding:0 18px}header span:first-of-type{display:none}main{grid-template-columns:1fr}.stage{border-right:0;border-bottom:1px solid var(--line);min-height:58vh;padding:22px}.canvas-wrap{width:min(78vw,430px);margin:30px auto}.hint{line-height:1.5}aside{padding:26px 22px}.color-entry{margin-top:28px}.swatch{height:120px}}