:root{font-family:Arial,Helvetica,sans-serif;color:#182533;background:#f7f8fa;font-synthesis:none}
*{box-sizing:border-box}body{margin:0}main{max-width:1360px;margin:auto;padding:38px 48px 60px}
.brand{letter-spacing:.13em;font-size:12px;font-weight:700;color:#506277}header{display:flex;justify-content:space-between;gap:36px;align-items:flex-start;border-bottom:1px solid #d9e0e6;padding-bottom:28px}
h1{font-size:38px;line-height:1.15;margin:14px 0 10px;max-width:800px;letter-spacing:-.035em}h2{font-size:23px;margin:0 0 9px;letter-spacing:-.02em}h3{font-size:16px;margin:0 0 10px}p{line-height:1.55;color:#506277;margin:0 0 16px}.intro{max-width:750px;font-size:15px}.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:19px}button,select,input{font:inherit}button{cursor:pointer;border:1px solid #cad4de;border-radius:6px;background:white;color:#223a50;padding:10px 14px;font-size:13px}button:hover{border-color:#28669b;background:#f0f5fa}button.primary{background:#223f58;color:white;border-color:#223f58}button.primary:hover{background:#345a77}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #88bcd6;outline-offset:3px}
section{margin-top:34px}.section-head{display:flex;justify-content:space-between;align-items:center;gap:20px}.hint{font-size:13px;color:#506277}.colors{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-top:22px}.color{background:white;border:1px solid #dce3e9;border-radius:8px;overflow:hidden}.swatch{height:116px;position:relative}.swatch input{width:100%;height:100%;opacity:0;cursor:pointer}.index{position:absolute;left:13px;top:12px;pointer-events:none;font-size:12px;font-weight:700}.values{padding:13px}.hex{border:0;background:#f1f4f7;padding:7px 9px;font-family:Consolas,monospace;max-width:100%;width:100%;font-size:15px;border-radius:4px}.rgb{font-size:12px;margin:10px 0;color:#506277}.copy{padding:6px 9px;font-size:12px}.tonal{display:grid;grid-template-columns:150px minmax(150px,1fr) 280px;gap:20px;align-items:center;padding:13px 0;border-bottom:1px solid #e0e5eb}.tonal .name{font-size:13px;line-height:1.6}.gradient{height:34px;border-radius:4px;cursor:pointer}.chips{display:flex;gap:5px}.chip{flex:1;height:34px;padding:0;border:0;border-radius:3px;min-width:18px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:36px}.scale-block{background:white;border:1px solid #dce3e9;border-radius:8px;padding:23px}.scale{height:54px;border-radius:4px;margin-top:22px;cursor:pointer}.scale-labels{display:flex;justify-content:space-between;font-size:12px;margin-top:9px;color:#506277}.small{font-size:12px}.preview{background:white;border:1px solid #dce3e9;border-radius:8px;padding:24px}.preview svg{width:100%;height:auto;display:block}.controls{display:flex;gap:12px;align-items:center;margin-bottom:14px;font-size:13px;flex-wrap:wrap}.controls label{display:flex;align-items:center;gap:7px}select{padding:7px;border:1px solid #cad4de;border-radius:4px}.audit{display:grid;grid-template-columns:1fr 1fr;gap:36px;background:#eef2f6;border-radius:8px;padding:26px}.audit ul{padding-left:20px;font-size:13px;color:#506277;line-height:1.65;margin:10px 0}.contrast-row{display:flex;justify-content:space-between;gap:12px;font-size:13px;padding:7px 0;border-bottom:1px solid #d8e0e7}.note{font-size:12px;color:#506277;margin-top:22px}footer{border-top:1px solid #d9e0e6;margin-top:40px;padding-top:20px;font-size:12px;color:#506277}#status{min-height:22px;font-size:13px;margin:14px 0;color:#28669b}.mono{font-family:Consolas,monospace}.download-menu{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.help{line-height:1.7;font-size:13px}.legend{display:flex;flex-wrap:wrap;gap:12px;font-size:12px;margin-top:10px}.legend span{display:flex;gap:5px;align-items:center}.legend i{display:inline-block;width:16px;height:3px}
@media(max-width:900px){main{padding:24px}header{display:block}h1{font-size:31px}.two-col,.audit{grid-template-columns:1fr}.tonal{grid-template-columns:110px 1fr;gap:12px}.chips{grid-column:2}.colors{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:540px){main{padding:18px}.colors{grid-template-columns:repeat(2,minmax(0,1fr))}.section-head{display:block}.tonal{grid-template-columns:90px 1fr}.audit{padding:18px}.actions button{flex:1}.values{padding:10px}h1{font-size:28px}}