:root{--ink:#0E1A24;--bone:#F7F5F0;--green:#1F6F5C;--muted:#5A6B78;--line:#dcd7cd;--flag:#B4451F}
*{box-sizing:border-box}
body{margin:0;background:var(--bone);color:var(--ink);font:400 18px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Helvetica,Arial,sans-serif}
a{color:var(--green)}
.wrap{max-width:820px;margin:0 auto;padding:0 24px}
header{border-bottom:1px solid var(--line);background:var(--bone);position:sticky;top:0;z-index:5}
header .wrap{display:flex;flex-wrap:wrap;gap:8px 22px;align-items:center;padding-top:16px;padding-bottom:16px}
.mark{font-weight:700;letter-spacing:-.02em;font-size:19px;color:var(--green);text-decoration:none;margin-right:auto}
header nav{display:flex;flex-wrap:wrap;gap:10px 20px}
header nav a{font-size:15px;color:var(--muted);text-decoration:none}
header nav a:hover,header nav a[aria-current]{color:var(--ink)}
main{padding:56px 0 72px}
h1{font-size:clamp(32px,5.4vw,50px);line-height:1.08;letter-spacing:-.03em;margin:0 0 18px}
h2{font-size:clamp(22px,3vw,28px);letter-spacing:-.02em;margin:46px 0 14px}
h3{font-size:19px;margin:28px 0 8px}
p.lede{font-size:clamp(19px,2.3vw,23px);color:var(--muted);margin:0 0 30px}
.steps{list-style:none;padding:0;margin:0 0 32px;border-top:1px solid var(--line)}
.steps li{padding:16px 0;border-bottom:1px solid var(--line);display:flex;gap:14px;align-items:flex-start}
.steps li b{min-width:26px;color:var(--green);font-variant-numeric:tabular-nums}
ul.plain{padding-left:20px;margin:0 0 24px}
ul.plain li{margin:8px 0}
.note{font-size:16px;color:var(--muted);border-left:3px solid var(--green);padding:2px 0 2px 16px;margin:26px 0}
.warn{border-left-color:var(--flag)}
.cards{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(178px,1fr));margin:26px 0 10px}
.card{border:1px solid var(--line);background:#fff;border-radius:10px;padding:20px}
.card h3{margin-top:0}
.card .price{font-size:30px;letter-spacing:-.02em;margin:6px 0 4px}
.card .per{font-size:14px;color:var(--muted)}
.card ul{padding-left:18px;margin:14px 0 0;font-size:16px}
.card li{margin:6px 0}
.tag{display:inline-block;font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:var(--green)}
.cta{display:inline-block;background:var(--green);color:#fff;text-decoration:none;padding:13px 22px;border-radius:8px;font-weight:500}
.cta.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.ctarow{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 8px}
table{border-collapse:collapse;width:100%;font-size:16px;margin:20px 0}
th,td{text-align:left;padding:11px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
footer{border-top:1px solid var(--line);font-size:14px;color:var(--muted);padding:28px 0 46px}
footer a{color:var(--muted)}
footer nav{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:14px}
.small{font-size:14px;color:var(--muted)}

/* app entry points */
header nav a.navcta{background:var(--green);color:#fff;padding:.35rem .7rem;border-radius:6px}
header nav a.navcta:hover{background:#17594a}
.card .cta{display:inline-block;margin-top:.75rem}

/* learn library */
.arts{list-style:none;padding:0;margin:26px 0 0;border-top:1px solid var(--line)}
.arts li{padding:18px 0;border-bottom:1px solid var(--line)}
.arts a{font-size:20px;font-weight:500;text-decoration:none;letter-spacing:-.01em}
.arts p{margin:6px 0 0;font-size:16px;color:var(--muted)}
article ol.plain{padding-left:20px;margin:0 0 24px}
article ol.plain li{margin:8px 0}
.crumb{font-size:14px;color:var(--muted);margin:0 0 18px}
.crumb a{color:var(--muted)}