:root{--ink:#111;--paper:#fff;--mut:#f2f2f0;--line:#e2e2df;--dim:#666;--faint:#999;--blue:#2563eb}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.6;font-size:16px}
.wrap{max-width:680px;margin:0 auto;padding:0 20px}
header.top{border-bottom:1px solid var(--line);padding:16px 0}
header.top .wrap{display:flex;justify-content:space-between;align-items:baseline}
.wordmark{font-size:20px;font-weight:400;letter-spacing:-.01em}
.wordmark b{font-weight:600}
header.top nav a{color:var(--dim);text-decoration:none;font-size:14px;margin-left:16px}
header.top nav a:hover{color:var(--ink)}
.hero{padding:56px 0 32px}
.hero h1{font-size:clamp(28px,5vw,40px);font-weight:600;line-height:1.15;letter-spacing:-.01em;max-width:560px}
.hero p.sub{margin-top:12px;color:var(--dim);max-width:520px}
.tool{border:1px solid var(--line);border-radius:12px;padding:24px;margin:24px 0}
.tool label{display:block;font-size:14px;font-weight:600;margin:0 0 4px}
.tool select,.tool input{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:15px;margin-bottom:14px;font:inherit;color:var(--ink)}
.tool .hint{font-size:12px;color:var(--faint);margin:-10px 0 14px}
.btn{display:inline-block;width:100%;padding:12px;border:none;border-radius:10px;background:var(--ink);color:#fff;font-size:16px;font-weight:600;cursor:pointer;font:inherit}
.btn:hover{opacity:.88}
.big{font-size:38px;font-weight:600;font-variant-numeric:tabular-nums;line-height:1.1}
.bars{margin:16px 0}
.bar-row{display:flex;align-items:center;gap:8px;margin-bottom:4px;font-size:12px;color:var(--dim)}
.bar-row span:first-child{width:70px;flex:none}
.bar-row span:last-child{width:64px;text-align:right;font-variant-numeric:tabular-nums;color:var(--ink)}
.track{flex:1;height:12px;border-radius:6px;background:var(--mut);position:relative;overflow:hidden}
.fill{position:absolute;inset:0 auto 0 0;border-radius:6px;background:#b9cdec}
.fill.you{background:var(--ink)}
.stat{display:flex;justify-content:space-between;padding:8px 0;border-top:1px solid var(--line);font-size:14px}
.stat b{font-variant-numeric:tabular-nums}
.contrib{border:1px solid var(--line);border-radius:12px;padding:16px;margin-top:12px;font-size:14px}
.contrib .chips{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.chipbtn{padding:8px 14px;border:1px solid var(--line);border-radius:6px;background:transparent;font-size:14px;cursor:pointer;font:inherit;color:var(--ink)}
.chipbtn.sel{border-color:var(--ink);background:var(--mut);font-weight:600}
.paywall{border:1px dashed var(--line);border-radius:12px;padding:14px 16px;margin-top:12px;font-size:14px;color:var(--dim)}
article h2{font-size:22px;font-weight:600;margin:32px 0 12px;letter-spacing:-.01em}
article h3{font-size:17px;font-weight:600;margin:24px 0 8px}
article p{margin:0 0 14px}
article ul,article ol{margin:0 0 14px 22px}
article li{margin-bottom:8px}
table.rates{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:15px}
table.rates th,table.rates td{padding:10px 12px;border:1px solid var(--line);text-align:left}
table.rates th{background:var(--mut);font-weight:600}
table.rates td:last-child,table.rates th:last-child{text-align:right;font-variant-numeric:tabular-nums}
.faq details{border:1px solid var(--line);border-radius:10px;margin-bottom:8px}
.faq summary{padding:12px 16px;font-weight:600;cursor:pointer;font-size:15px}
.faq details p{padding:0 16px 14px;color:var(--dim);font-size:15px}
.newsletter{background:var(--mut);border-radius:12px;padding:24px;margin:32px 0}
.newsletter input{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:15px;margin-bottom:10px;font:inherit}
footer{border-top:1px solid var(--line);margin-top:48px;padding:24px 0 40px;color:var(--faint);font-size:13px}
footer a{color:var(--dim);text-decoration:none;margin-right:16px}
.note{font-size:12px;color:var(--faint)}
section.links{padding:8px 0 24px}
section.links a{display:block;padding:12px 0;border-bottom:1px solid var(--line);color:var(--ink);text-decoration:none;font-weight:500}
section.links a:hover{color:var(--blue)}
section.links a span{float:right;color:var(--faint);font-weight:400;font-size:13px}