@font-face{font-family:Roboto;font-style:normal;font-weight:400;font-display:swap;src:url("fonts/roboto-400.ttf") format("truetype")}
@font-face{font-family:Roboto;font-style:normal;font-weight:500;font-display:swap;src:url("fonts/roboto-500.ttf") format("truetype")}
@font-face{font-family:Roboto;font-style:normal;font-weight:600;font-display:swap;src:url("fonts/roboto-600.ttf") format("truetype")}
@font-face{font-family:Roboto;font-style:normal;font-weight:700;font-display:swap;src:url("fonts/roboto-700.ttf") format("truetype")}
:root{--paper:#fff;--ink:#000;--muted:#595959;--line:#d4d4d4;--accent:#fddd00;--surface:#f2f2f2}*{box-sizing:border-box}html,body{width:100%;margin:0;min-width:0}body{background:var(--paper);color:var(--ink);font:15px/1.55 Roboto,Arial,sans-serif}button,input,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.5;cursor:default}:focus-visible{outline:3px solid #000;outline-offset:3px}[hidden]{display:none!important}.app-header{width:100%;display:flex;align-items:center;gap:22px;padding:24px clamp(12px,2.4vw,32px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;flex:none}.nix-logo{max-width:120px;max-height:52px;width:auto;height:auto;object-fit:contain}.nix-wordmark{font-size:36px;font-weight:700;letter-spacing:-2px;line-height:1}.app-header h1{font-size:clamp(18px,2vw,26px);font-weight:700;letter-spacing:-.6px;line-height:1.3;margin:0}main{width:100%;max-width:none;margin:0;padding:24px clamp(12px,2.4vw,32px) 12px}.tool-bar{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);width:100%}.feature-tabs{display:flex;align-items:stretch;gap:5px;margin-bottom:-1px}.feature-tabs button{padding:15px 22px;border:1px solid var(--line);border-bottom:1px solid var(--line);border-radius:10px 10px 0 0;background:#eee;color:var(--muted);font-size:13px;font-weight:600;position:relative}.feature-tabs button[aria-selected=true]{background:#fff;border-bottom-color:#fff;color:var(--accent);box-shadow:inset 0 3px 0 var(--accent)}.white-label{font-size:11px;color:var(--muted);display:flex;gap:10px;align-items:center;margin-bottom:10px;white-space:nowrap}.white-label select{width:auto;margin:0;padding:8px 10px;font-size:11px}.section-heading{margin:26px 0 18px}h2{font-size:24px;line-height:1.3;letter-spacing:-.6px;font-weight:600;margin:0}h3{font-size:17px;letter-spacing:-.3px;margin:0 0 12px;font-weight:600}.card{border:1px solid var(--line);background:#fff;border-radius:12px;padding:24px;min-width:0}.compare-grid{display:grid;grid-template-columns:minmax(0,2.15fr) minmax(260px,1fr);gap:18px;align-items:start}.sample-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;min-width:0}.color-card-title{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:18px}.color-card-title h3{margin:0}.card-tag{font-size:9px;letter-spacing:1px;color:var(--muted)}.swatch{height:170px;border-radius:9px;margin-bottom:18px;position:relative;overflow:hidden}.swatch input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}.swatch span{position:absolute;bottom:12px;left:14px;background:#ffffffde;padding:4px 8px;border-radius:5px;font:11px ui-monospace,monospace;pointer-events:none}label{font-size:11px;font-weight:500;color:#595954}select,input:not([type=color]){width:100%;min-width:0;background:#fff;border:1px solid var(--line);border-radius:6px;color:var(--ink);padding:10px 12px;margin:5px 0 12px;font-size:13px}select{cursor:pointer}.fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.fields input{font-family:ui-monospace,monospace;padding:10px 7px}.fields.four{grid-template-columns:repeat(4,minmax(0,1fr))}.hex-row{display:grid;grid-template-columns:minmax(0,1fr);gap:10px;align-items:center}.hex-row input{margin-bottom:6px}.hex-row button{margin-top:15px}.muted{color:var(--muted);font-size:11px;line-height:1.65}.gamut-note{min-height:20px;color:#a46b22;margin:4px 0;font-size:10px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:2px;color:var(--muted);margin:0 0 15px}.result{background:#f2f2f2;border-color:#000;border-top:5px solid var(--accent)}.result label{display:block}.result select,.result input{background:#fff;border-color:#bdbdbd}.result-number{display:flex;align-items:baseline;gap:8px;margin:24px 0}.result-number span{font-size:58px;letter-spacing:-3px;line-height:1}.result-number small{font-size:16px;color:var(--muted)}.pass{font-size:11px;border-radius:5px;padding:6px 9px;background:#e0f1e4;color:#2c6c40;margin-bottom:10px}.pass.fail{background:#ffe3d9;color:#a94722}.primary,.secondary,.text-button{border-radius:6px;padding:10px 14px;font-size:12px;border:1px solid var(--line);background:transparent;color:var(--ink)}.primary{background:var(--accent);color:#000;border-color:#000;display:flex;justify-content:space-between;width:100%;margin:16px 0 10px}.primary:hover{background:#000;color:var(--accent)}.result .secondary{width:100%;font-size:11px}.text-button{border:0;color:var(--muted)}.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin:20px 0 30px}.metric{border-bottom:1px solid var(--line);padding:13px 4px}.metric span{display:block;color:var(--muted);font-size:10px;letter-spacing:.5px}.metric strong{font-size:23px;font-weight:500}.metric.active strong{color:var(--accent)}.technical{font-size:10px;line-height:1.8;color:var(--muted);margin:20px 0 12px}.converter-layout{display:grid;grid-template-columns:minmax(260px,.8fr) minmax(0,2fr);gap:24px}.converter-input{min-width:0}.profile-card{margin-top:18px}.conversion-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;align-content:start}.conversion-tile{padding:20px;background:white;border:1px solid var(--line);border-radius:10px;min-width:0}.conversion-tile h3{font-size:12px;margin:0 0 12px}.conversion-tile p{font:12px/1.9 ui-monospace,monospace;margin:0;overflow-wrap:anywhere}.conversion-tile button{margin-top:12px;font-size:10px;border:0;background:none;color:var(--accent);padding:0}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;padding:10px 18px;border-radius:8px;font-size:12px;opacity:0;pointer-events:none;transition:opacity .2s}#toast.show{opacity:1}#global-error{background:#fff0eb;border:1px solid #ffd0bd;padding:15px;border-radius:8px;margin:20px 0;font-size:13px}#params .fields{gap:5px}#params input{margin-bottom:0}noscript{display:block;padding:20px}
@media(max-width:1050px){.compare-grid{grid-template-columns:minmax(0,1fr)}.result{display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.result>.eyebrow{grid-column:1/-1}.result-number{grid-row:2/5;grid-column:2;justify-content:center;align-items:center}.result>.primary,.result>.secondary{grid-column:2}.conversion-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tool-bar{flex-wrap:wrap;gap:12px}.white-label{margin:0 0 10px}}
@media(max-width:650px){.app-header{padding:18px 12px;gap:15px}.nix-logo{max-width:85px;max-height:42px}.nix-wordmark{font-size:29px}.app-header h1{font-size:18px}main{padding:16px 10px 10px}.feature-tabs{width:100%;gap:4px}.feature-tabs button{font-size:11px;padding:12px 9px;line-height:1.5}.feature-tabs button:first-child{flex:1.5}.feature-tabs button:last-child{flex:1}.tool-bar{gap:12px}.card{padding:15px}.sample-pair{gap:10px}.sample-pair .color-card-title{flex-wrap:wrap;gap:3px}.sample-pair h3{font-size:15px}.sample-pair .swatch{height:120px}.sample-pair .swatch span{font-size:10px;left:8px;bottom:8px}.sample-pair .fields,.sample-pair .fields.four{grid-template-columns:minmax(0,1fr);gap:0}.sample-pair .fields label{display:grid;grid-template-columns:28px minmax(0,1fr);align-items:center;gap:4px}.sample-pair .fields input{margin:5px 0}.sample-pair .hex-row{grid-template-columns:minmax(0,1fr);gap:0}.sample-pair .hex-row button{margin:5px 0 0;padding:7px;font-size:10px}.sample-pair .gamut-note{line-height:1.4}.sample-pair .muted{font-size:10px}.result{display:block}.result-number{justify-content:flex-start}.metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.converter-layout{grid-template-columns:minmax(0,1fr);gap:18px}.conversion-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.conversion-tile{padding:14px}h2{font-size:21px}.section-heading{margin-top:22px}}

.condition-controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:18px 0 8px}.condition-controls label{min-width:0}.condition-controls select{width:100%;margin-top:6px}#condition-note{margin:8px 0 20px}

/* Nix site palette: black, white, neutral grey and #FDDD00 yellow. */
.app-header{background:#fff;border-bottom:1px solid #000}
.app-header h1,h2,h3{font-weight:700}
.nix-logo{max-height:64px;max-width:110px}
.feature-tabs button{color:#333;font-weight:600;border-color:#bdbdbd;font-size:14px}
.feature-tabs button[aria-selected=true]{color:#000;background:#fff;box-shadow:inset 0 4px 0 var(--accent);border-color:#000;border-bottom-color:#fff}
.feature-tabs button:hover{background:#fff8c5;color:#000}
.card,.conversion-tile{border-radius:14px}
.card{border-color:#bdbdbd}
.result{border-color:#000}
label{color:#333;font-weight:600;font-size:12px}
select,input:not([type=color]){border-radius:5px;font-size:14px}
.primary,.secondary{border:2px solid #000;border-radius:28px;font-weight:600;min-height:44px;padding:11px 18px;font-size:14px}
.secondary{background:#fff}.secondary:hover{background:#fddd00}
.result .secondary{font-size:13px}
.metric.active{border-bottom:3px solid #fddd00}.metric.active strong{color:#000;font-weight:700}
.conversion-tile h3{font-size:14px;font-weight:700}
.conversion-tile button{color:#000;text-decoration:underline;text-underline-offset:4px;font-size:12px;font-weight:600;min-height:32px}
.conversion-tile button:hover{background:#fddd00}
.conversion-tile p{font-variant-numeric:tabular-nums}
.muted{font-size:12px}.technical{font-size:11px}
#toast{background:#000;color:#fff;border-bottom:3px solid #fddd00}
@media(max-width:650px){.nix-logo{max-width:75px;max-height:56px}.feature-tabs button{font-size:12px}.primary,.secondary{padding:10px 12px}.sample-pair label{font-size:11px}.conversion-tile h3{font-size:13px}}

/* Full-width numeric channels; cards grow with their content. */
.fields,.fields.four{grid-template-columns:repeat(auto-fit,minmax(min(100%,11ch),1fr));gap:10px}
.fields label{display:block;min-width:0}
.fields input{width:100%;padding:12px 8px;font-size:16px;font-variant-numeric:tabular-nums;appearance:textfield;-moz-appearance:textfield}
input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
.conversion-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr))}
.conversion-tile{height:auto;overflow:visible}
.conversion-tile h3{overflow-wrap:anywhere}
.output-channel{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 12px;margin:3px 0;min-width:0}
.output-value{font-size:16px;line-height:1.65;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
.result-number{flex-wrap:wrap;min-width:0}.result-number span{font-size:clamp(32px,5vw,58px);overflow-wrap:anywhere;letter-spacing:-1px;max-width:100%}
.metric{min-width:0}.metric strong{overflow-wrap:anywhere}
#params .fields{grid-template-columns:repeat(auto-fit,minmax(min(100%,9ch),1fr))}
@media(max-width:900px){.sample-pair .fields,.sample-pair .fields.four{grid-template-columns:minmax(0,1fr)}.sample-pair .fields label{display:block}.sample-pair .fields input{margin:5px 0 12px}}
@media(max-width:650px){.card{padding:12px}.sample-pair{gap:8px}.sample-pair .fields label{display:block}.sample-pair .fields input{font-size:14px;padding:10px 4px}.conversion-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,190px),1fr))}.conversion-tile{padding:16px}.condition-controls{gap:8px}.condition-controls select{font-size:12px;padding:10px 5px}}

/* Equal-height reference, sample and difference panels in the desktop row. */
@media(min-width:1051px){.compare-grid{align-items:stretch}.sample-pair{align-items:stretch}.compare-grid>.result{align-self:stretch}}