:root{color-scheme:light;--ink:#173338;--muted:#52676a;--teal:#08675e;--teal-dark:#064b45;--line:#ceddda;--paper:#f6f9f8;--white:#fff;--tint:#e8f1ee;--error:#922d26;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}
body{margin:0;font-size:16px;line-height:1.6}
button,textarea{font:inherit}
button,a,summary{-webkit-tap-highlight-color:transparent}
button{cursor:pointer}
a{color:var(--teal);text-underline-offset:4px}
a:hover{color:var(--teal-dark)}
button:focus-visible,a:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--teal);outline-offset:4px}
[hidden]{display:none!important}
.page{width:min(1144px,100%);margin:auto;padding:0 32px}
.skip-link{position:absolute;top:12px;left:16px;z-index:2;padding:10px 16px;background:var(--white);transform:translateY(-160%)}
.skip-link:focus{transform:none}
.site-header{min-height:92px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line)}
.wordmark{text-decoration:none;font-size:23px;letter-spacing:-.8px;font-weight:750;color:var(--ink)}
.wordmark span{color:var(--teal)}
.intro{padding:56px 0 36px;max-width:850px}
.intro-label{margin:0 0 14px;color:var(--teal);font-size:14px;font-weight:650}
h1,h2,h3,p{margin-top:0}
h1{max-width:800px;margin-bottom:22px;font-size:clamp(36px,5.2vw,58px);font-weight:650;letter-spacing:-2.1px;line-height:1.1;text-wrap:balance}
.lead{max-width:770px;margin:0;font-size:18px;line-height:1.7;color:var(--muted)}
.demo{margin-bottom:38px;scroll-margin-top:20px}
.demo-heading{margin-bottom:20px}
h2{margin-bottom:4px;font-size:22px;font-weight:650;letter-spacing:-.5px}
.demo-heading p{margin-bottom:0;color:var(--muted);font-size:15px}
.panels{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--white)}
.input-panel,.result-panel{min-width:0;padding:26px}
.result-panel{border-left:1px solid var(--line);background:#f0f6f3}
.panel-heading{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:18px}
h3{margin:0;font-size:18px;line-height:1.4;font-weight:650}
.format-label{font-size:12px;color:var(--muted);white-space:nowrap}
label{display:block;font-size:13px;font-weight:600;margin-bottom:8px}
textarea{display:block;width:100%;min-height:178px;max-height:480px;resize:vertical;border:1px solid #9db7b0;border-radius:6px;padding:14px;background:#fff;color:var(--ink);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px;line-height:1.8;white-space:pre;overflow:auto}
.field-help{font-size:13px;line-height:1.65;color:var(--muted);margin:10px 0 0}
.actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:22px}
.primary-button,.reset-button{min-height:46px;border-radius:6px;padding:10px 16px;font-size:14px;font-weight:600}
.primary-button{border:1px solid var(--teal);background:var(--teal);color:var(--white)}
.primary-button:hover:enabled{background:var(--teal-dark);border-color:var(--teal-dark)}
.reset-button{border:1px solid transparent;color:var(--teal);background:transparent}
.reset-button:hover:enabled{background:var(--tint)}
button:disabled{cursor:wait;opacity:.65}
textarea:disabled{opacity:.8}
.status{font-size:14px;line-height:1.65;margin-bottom:16px;color:var(--muted);overflow-wrap:anywhere}
.status[data-state="success"]{color:var(--teal);font-weight:600}
.status[data-state="error"]{color:var(--error)}
.empty-result{display:flex;min-height:164px;align-items:center;justify-content:center;border:1px dashed #a5bdb5;border-radius:6px;padding:24px;color:var(--muted);text-align:center}
.empty-result p{max-width:240px;margin:0;font-size:14px}
.table-container{overflow:auto;max-height:352px;border:1px solid var(--line);border-radius:6px;background:var(--white)}
table{width:100%;border-collapse:collapse;text-align:left;font-size:13px}
caption{padding:10px 12px;text-align:left;color:var(--muted);font-size:12px}
th,td{padding:10px 12px;border-top:1px solid var(--line);vertical-align:top;max-width:220px;overflow-wrap:anywhere}
th{background:var(--tint);font-size:12px;font-weight:650}
td{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
.field-errors{padding-left:20px;margin:0 0 18px;font-size:13px;color:var(--error);overflow-wrap:anywhere}
.response-details{margin-top:18px;font-size:13px}
summary{cursor:pointer;color:var(--teal);font-weight:600;min-height:36px;padding:6px 0}
pre{max-height:300px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;font-size:12px;padding:14px;background:var(--white);border:1px solid var(--line);border-radius:6px}
.rules{padding:22px 0 18px;border-bottom:1px solid var(--line)}
.rules-title{font-size:14px;font-weight:650;margin-bottom:12px}
.mapping-list{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:0;padding:0}
.mapping-list li{display:flex;flex-direction:column;gap:2px;font-size:12px;color:var(--muted)}
code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px;color:var(--ink)}
.limits{font-size:13px;color:var(--muted);margin:14px 0 0;max-width:880px}
.noscript-note{padding:16px;border:1px solid var(--line)}
footer{border-top:1px solid var(--line);padding:20px 0 28px}
.developer-details{font-size:14px}
.developer-details p{max-width:720px;color:var(--muted);margin:8px 0 12px}
.developer-details nav{display:flex;flex-wrap:wrap;gap:10px 24px}
.developer-details nav a{padding:5px 0}
.footer-note{font-size:12px;color:var(--muted);margin:22px 0 0}
@media(max-width:760px){.page{padding:0 20px}.site-header{min-height:80px}.intro{padding:36px 0 28px}h1{letter-spacing:-1.2px}.lead{font-size:16px}.panels{grid-template-columns:1fr}.input-panel,.result-panel{padding:22px}.result-panel{border-left:0;border-top:1px solid var(--line)}.mapping-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.empty-result{min-height:130px}}
@media(max-width:400px){.page{padding:0 16px}.wordmark{font-size:21px}.input-panel,.result-panel{padding:18px}.panel-heading{gap:8px}.format-label{font-size:11px}.primary-button{width:100%}.reset-button{min-height:44px}.actions{gap:4px}h1{font-size:36px}.mapping-list{column-gap:8px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}