:root{color-scheme:light;--paper:#eaf4f2;--card:#fffefa;--ink:#122b31;--green:#135a59;--muted:#415c60;--line:#bad5d1;--accent:#ccebd2;font-family:system-ui,sans-serif;background:var(--paper);color:var(--ink)}
*{box-sizing:border-box}
body{margin:0}
.shell{width:min(1040px,calc(100% - 34px));margin-inline:auto}
.top,.head{display:flex;justify-content:space-between;align-items:center;gap:10px}
.top{height:67px;border-bottom:1px solid var(--line)}
a{color:var(--green)}
.brand{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink);font-weight:820}
.brand span{background:var(--green);color:white;border-radius:8px;padding:5px 9px;font-size:1.15rem}
.intro{padding:47px 0 28px}
.eyebrow{font-size:.74rem;letter-spacing:.11em;text-transform:uppercase;font-weight:820;color:var(--green);margin:0 0 8px}
h1,h2,p{margin-top:0}
h1{font-size:clamp(3rem,8.7vw,6.8rem);line-height:.88;letter-spacing:-.086em;margin-bottom:20px}
h2{font-size:clamp(1.45rem,4vw,2.13rem);letter-spacing:-.045em;margin-bottom:9px}
p{line-height:1.54}
.intro p:last-child,.guide p:not(.eyebrow){max-width:60ch;color:var(--muted)}
.card{padding:clamp(15px,3.4vw,28px);border:1px solid var(--line);border-radius:16px;background:var(--card);margin-bottom:15px}
.head{align-items:flex-start}
.fields{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:6px 0 13px}
.field label{display:block;font-weight:740;font-size:.86rem;margin-bottom:5px}
.controls,.actions{display:flex;gap:7px;align-items:center;flex-wrap:wrap}
input,button{font:inherit}
input[type=color]{width:36px;height:35px;padding:3px;border:1px solid var(--line);border-radius:7px;background:white}
input[type=text]{min-width:0;width:100px;border:1px solid var(--line);border-radius:7px;padding:7px;color:var(--ink);background:#f3faf9}
button{border:1px solid var(--line);border-radius:8px;background:white;color:var(--green);font-size:.86rem;padding:8px 10px;font-weight:740;cursor:pointer}
button.primary{color:white;background:var(--green);border-color:var(--green)}
button:disabled{opacity:.5;cursor:default}
:focus-visible{outline:3px solid var(--green);outline-offset:3px}
#notice,.quiet{color:var(--muted);font-size:.88rem;margin:9px 0 0}
.preview{padding:13px 15px;border:1px solid var(--line);border-radius:9px;margin:9px 0 12px;background:var(--preview-background);color:var(--preview-body)}
.preview-title{font-weight:800;font-size:1.3rem;margin-bottom:5px}
#swatch{display:inline-block;padding:6px 10px;border-radius:7px;font-size:.86rem;font-weight:750;background:var(--preview-fill);color:var(--preview-label)}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:8px}
table{width:100%;min-width:440px;border-collapse:collapse;text-align:left;font-variant-numeric:tabular-nums}
td,th{padding:8px 10px;border-bottom:1px solid var(--line)}
thead th{font-size:.83rem;background:#eef7f5}
.badge{font-weight:750}
.badge.pass{color:#195f3e}
.badge.fail{color:#873818}
footer{padding:15px 0 23px;border-top:1px solid var(--line);font-size:.85rem;color:var(--muted)}
@media(max-width:670px){.fields{grid-template-columns:repeat(2,minmax(0,1fr))}.head{flex-wrap:wrap}.intro{padding-top:34px}}