:root{--teal:#1F6F78;--teal-dark:#165359;--gold:#F2B33D;--paper:#F6F3EC;--ink:#1B2A2C;--muted:#4D5E60;--surface:#FFFFFF;--line:#DDD6C5;--mist:#BFD9DC}
@media (prefers-color-scheme:dark){:root{--paper:#14201F;--ink:#F1EEE6;--muted:#B5C3C2;--surface:#1C2B2A;--line:#35484A;--teal:#7CC3CB;--teal-dark:#A6D8DD}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 18px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--teal)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
.banner{background:var(--gold);color:#1B2A2C;text-align:center;padding:8px 16px;font-size:16px;font-weight:600}
header.top{display:flex;align-items:center;gap:12px;padding:20px 0 0;font-weight:600;font-size:17px}
header.top img{width:36px;height:36px;border-radius:9px}
.hero{display:grid;gap:32px;padding:32px 0 48px;align-items:center}
@media(min-width:860px){.hero{grid-template-columns:1.15fr 1fr;padding:56px 0 72px}}
h1{font-size:clamp(32px,6vw,48px);line-height:1.12;margin:0 0 16px;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(24px,4vw,32px);line-height:1.2;margin:0 0 16px}
h3{font-size:20px;margin:32px 0 8px}
.sub{font-size:20px;color:var(--muted);margin:0 0 8px;max-width:34em}
/* the signature: a card with a folded corner */
.card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:20px 0 20px 20px;padding:28px 24px 24px;
 --fold:56px;clip-path:polygon(0 0,calc(100% - var(--fold)) 0,100% var(--fold),100% 100%,0 100%)}
.card::after{content:"";position:absolute;top:0;right:0;width:var(--fold);height:var(--fold);background:linear-gradient(225deg,transparent 50%,var(--gold) 50%)}
.card h2{font-size:22px;margin-right:48px}
label{display:block;font-weight:600;font-size:16px;margin-bottom:6px}
input[type=email]{width:100%;font:inherit;font-size:18px;min-height:52px;padding:10px 14px;border:2px solid var(--muted);border-radius:12px;background:var(--paper);color:var(--ink)}
.btn{display:block;width:100%;min-height:54px;margin-top:12px;font:inherit;font-weight:700;font-size:18px;background:var(--gold);color:#1B2A2C;border:2px solid #1B2A2C;border-radius:12px;cursor:pointer;padding:10px 16px}
.btn:hover{background:#F7C45F}
.fine{font-size:16px;color:var(--muted);margin:12px 0 0}
.thanks{display:none}
.thanks.show{display:block}
.thanks p{margin:0 0 12px}
.cta-link{display:inline-block;min-height:48px;padding:12px 20px;background:var(--teal-dark);color:#fff;border-radius:12px;font-weight:700;text-decoration:none}
@media(prefers-color-scheme:dark){.cta-link{color:#10201F}}
section{padding:40px 0;border-top:1px solid var(--line)}
.narrow{max-width:40em}
ul.list{padding-left:22px;margin:0}
ul.list li{margin-bottom:10px}
.about{display:flex;gap:20px;align-items:flex-start}
.about img{width:88px;height:88px;border-radius:20px;flex:none}
footer{padding:32px 0 48px;border-top:1px solid var(--line);font-size:16px;color:var(--muted)}
footer p{margin:4px 0}
.sr{position:absolute;left:-9999px}
/* guide */
.guide{max-width:44em;margin:0 auto;padding:24px 20px 64px}
.guide h1{font-size:clamp(30px,5vw,40px)}
.guide h2{margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.guide hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.guide table{border-collapse:collapse;width:100%;font-size:16px;margin:16px 0}
.guide th,.guide td{border:1px solid var(--line);padding:8px 12px;text-align:left;overflow-wrap:anywhere}
.guide th{background:var(--surface)}
.guide li{margin-bottom:6px}
.back{display:inline-block;margin:16px 0}
@media print{header.top,.back,.noprint{display:none}body{background:#fff;color:#000;font-size:12pt}}
@media(prefers-reduced-motion:no-preference){.thanks.show{animation:pop .3s ease-out}}
@keyframes pop{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}