:root{
  --paper:#F6F1E7; --paper-2:#EFE7D8; --card:#FFFCF6;
  --ink:#16202E; --ink-2:#3B4757; --muted:#6B7480;
  --copper:#B8692E; --copper-d:#94511F; --copper-l:#F1DCC8;
  --green:#2F7A4F; --line:#E2D8C6;
  --serif: "Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,ui-serif,serif;
  --sans: ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --r:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
img,svg{display:block}
a{color:var(--copper-d)}
h1,h2,h3{font-family:var(--serif);line-height:1.12;letter-spacing:-.01em;margin:0}
h1{font-size:clamp(2.25rem,7.4vw,3.9rem);font-weight:700}
h2{font-size:clamp(1.75rem,4.6vw,2.6rem);font-weight:700}
h3{font-size:1.15rem;font-weight:700}
p{margin:0}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.center{text-align:center}
.nowrap{white-space:nowrap}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}

/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(246,241,231,.86);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid transparent;transition:border-color .2s}
.nav.scrolled{border-bottom-color:var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--serif);font-weight:700;font-size:1.2rem}
.mark{width:32px;height:32px}

/* buttons */
.btn{appearance:none;border:0;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--ink);color:#FFF8EE;font:600 1rem/1 var(--sans);padding:0 22px;height:52px;border-radius:12px;text-decoration:none;
  transition:transform .08s ease,background .15s ease,box-shadow .15s ease;box-shadow:0 1px 0 rgba(0,0,0,.08),0 6px 16px -8px rgba(22,32,46,.5)}
.btn:hover{background:#0D1520}
.btn:active{transform:translateY(1px)}
.btn:focus-visible,.link:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--copper);outline-offset:2px}
.btn-small{height:40px;padding:0 14px;font-size:.92rem;border-radius:10px}
.btn-block{width:100%}
.btn[disabled]{opacity:.6;cursor:progress}
.link{appearance:none;background:none;border:0;padding:0;font:inherit;color:var(--copper-d);text-decoration:underline;text-underline-offset:3px;cursor:pointer}

/* hero */
.hero{padding:40px 0 56px}
.hero-grid{display:grid;gap:44px}
.eyebrow{display:inline-block;max-width:100%;font-size:.85rem;font-weight:600;color:var(--copper-d);background:var(--copper-l);padding:6px 12px;border-radius:999px;margin-bottom:18px}
.sub{font-size:1.12rem;color:var(--ink-2);margin:18px 0 26px;max-width:560px}
.signup{display:grid;gap:10px;max-width:520px}
.signup input[type=email]{height:52px;border:1.5px solid var(--line);background:var(--card);border-radius:12px;padding:0 16px;font:1rem var(--sans);color:var(--ink);width:100%}
.signup input[type=email]::placeholder{color:#9AA0A8}
.signup input[type=email]:focus{border-color:var(--copper);outline:none;box-shadow:0 0 0 4px rgba(184,105,46,.15)}
.signup input[aria-invalid=true]{border-color:#B3261E}
.form-msg{font-size:.92rem;min-height:1.4em;grid-column:1/-1}
.form-msg.ok{color:var(--green);font-weight:600}
.form-msg.err{color:#B3261E}
.fine{font-size:.9rem;color:var(--muted);margin-top:4px}

/* hero art */
.hero-art{position:relative;display:flex;justify-content:center;padding-bottom:84px}
.phone{position:relative;width:280px;max-width:78vw;aspect-ratio:9/18.5;background:#141A23;border-radius:42px;padding:12px;box-shadow:0 30px 60px -28px rgba(22,32,46,.55),0 0 0 1.5px #2A3240 inset}
.phone-notch{position:absolute;top:18px;left:50%;transform:translateX(-50%);width:84px;height:22px;background:#141A23;border-radius:12px;z-index:2}
.screen{height:100%;background:linear-gradient(180deg,#1E2733 0,#1E2733 54%,var(--card) 54%);border-radius:32px;overflow:hidden;display:flex;flex-direction:column}
.scan{position:relative;margin:54px auto 0;width:74%;aspect-ratio:1}
.coin-svg{width:100%;height:100%;filter:drop-shadow(0 10px 14px rgba(0,0,0,.35))}
.corner{position:absolute;width:22px;height:22px;border:3px solid var(--copper-l)}
.corner.tl{top:-6px;left:-6px;border-right:0;border-bottom:0;border-radius:8px 0 0 0}
.corner.tr{top:-6px;right:-6px;border-left:0;border-bottom:0;border-radius:0 8px 0 0}
.corner.bl{bottom:-6px;left:-6px;border-right:0;border-top:0;border-radius:0 0 0 8px}
.corner.br{bottom:-6px;right:-6px;border-left:0;border-top:0;border-radius:0 0 8px 0}
.scanline{position:absolute;left:4%;right:4%;height:2px;top:12%;background:linear-gradient(90deg,transparent,#F1DCC8,transparent);box-shadow:0 0 12px #F1DCC8;animation:scan 2.8s ease-in-out infinite}
@keyframes scan{0%,100%{top:12%}50%{top:86%}}
@media (prefers-reduced-motion:reduce){.scanline{animation:none;top:50%}html{scroll-behavior:auto}}
.result{margin-top:auto;padding:14px 16px 18px;color:var(--ink)}
.result-top{display:flex;justify-content:space-between;align-items:center;gap:6px}
.tag{font-size:.66rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);border-radius:6px;padding:2px 6px}
.conf{font-size:.72rem;font-weight:600;color:var(--green);display:flex;align-items:center;gap:5px}
.conf i{width:7px;height:7px;border-radius:50%;background:var(--green)}
.r-title{font-family:var(--serif);font-weight:700;font-size:1.15rem;margin:8px 0 6px}
.r-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:0}
.r-grid div{background:var(--paper);border-radius:8px;padding:6px 8px}
.r-grid dt{font-size:.64rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.r-grid dd{margin:0;font-weight:700;font-size:.95rem}
.r-note{font-size:.74rem;color:var(--ink-2);margin-top:8px;line-height:1.4}
.notif{position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:min(330px,92vw);display:flex;gap:10px;align-items:flex-start;background:rgba(255,252,246,.97);border:1px solid var(--line);border-radius:16px;padding:12px 14px;box-shadow:0 16px 34px -18px rgba(22,32,46,.45)}
.notif-icon{flex:0 0 28px;height:28px;border-radius:8px;background:#F3E6D6 url("favicon.svg") center/24px no-repeat}
.notif-title{font-size:.8rem;font-weight:700}
.notif-title span{font-weight:500;color:var(--muted);margin-left:4px;font-size:.72rem}
.notif-body{font-size:.8rem;color:var(--ink-2);line-height:1.4}

/* sections */
section{padding:64px 0}
.kicker{font-size:.8rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--copper-d);margin-bottom:10px}
.lead{font-size:1.08rem;color:var(--ink-2);margin-top:14px;max-width:680px}
.diff{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cards{display:grid;gap:14px;margin-top:32px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.card p{color:var(--ink-2);margin-top:6px;font-size:.98rem}
.icon{width:30px;height:30px;fill:none;stroke:var(--copper-d);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;margin-bottom:12px}
.steps{list-style:none;padding:0;margin:30px 0 0;display:grid;gap:14px}
.steps li{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-top:1px solid var(--line)}
.steps p{color:var(--ink-2);margin-top:4px}
.num{flex:0 0 38px;height:38px;border-radius:50%;display:grid;place-items:center;font-family:var(--serif);font-weight:700;font-size:1.1rem;background:var(--ink);color:#FFF8EE}
.pricing{background:var(--paper-2)}
.price-grid{display:grid;gap:14px;margin-top:30px}
.price-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.plan{font-weight:700;color:var(--ink-2)}
.amount{font-family:var(--serif);font-size:2.2rem;font-weight:700;margin:6px 0 6px}
.amount span{font-family:var(--sans);font-size:.95rem;font-weight:500;color:var(--muted)}
.plan-note{color:var(--ink-2);font-size:.95rem}
.founding{border:2px solid var(--copper);box-shadow:0 18px 40px -26px rgba(148,81,31,.6)}
.founding .btn{margin-top:16px;background:var(--copper-d)}
.founding .btn:hover{background:#7C4318}
.tiny{font-size:.82rem;color:var(--muted);margin-top:8px;text-align:center}
details{border-top:1px solid var(--line);padding:4px 0}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;list-style:none;font-weight:600;font-size:1.05rem;padding:16px 36px 16px 0;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"";position:absolute;right:6px;top:50%;width:10px;height:10px;border-right:2px solid var(--ink-2);border-bottom:2px solid var(--ink-2);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
details p{color:var(--ink-2);padding:0 0 18px;max-width:640px}
.faq h2{margin-bottom:20px}
.cta{background:var(--ink);color:#FFF8EE}
.cta .lead{color:#C9CED6;margin:12px auto 24px}
.cta .btn{background:var(--copper)}
.cta .btn:hover{background:var(--copper-d)}
.signup-center{margin:0 auto}
.cta .form-msg.ok{color:#9FD7B3}
.footer{padding:28px 0 40px;font-size:.9rem;color:var(--ink-2)}
.footer-inner{display:grid;gap:6px}
.muted{color:var(--muted)}

/* modal */
.modal{border:0;border-radius:20px;padding:28px 24px 22px;width:min(440px,calc(100vw - 32px));background:var(--card);color:var(--ink);box-shadow:0 30px 80px -20px rgba(0,0,0,.45)}
.modal::backdrop{background:rgba(22,32,46,.55);backdrop-filter:blur(2px)}
.modal h2{font-size:1.7rem;margin-bottom:10px}
.modal-copy{color:var(--ink-2)}
.modal-promise{margin:14px 0 16px;background:var(--copper-l);color:var(--copper-d);border-radius:10px;padding:10px 12px;font-size:.95rem}
.modal-close-form{position:absolute;top:10px;right:10px;margin:0}
.modal-x{appearance:none;border:0;background:transparent;font-size:1.7rem;line-height:1;width:40px;height:40px;border-radius:10px;cursor:pointer;color:var(--ink-2)}
.modal-x:hover{background:var(--paper)}
.signup-stack{max-width:none}

/* larger screens */
@media (min-width:640px){
  .signup:not(.signup-stack){grid-template-columns:1fr auto}
  .cards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr);gap:24px}
  .steps li{flex-direction:column;border-top:2px solid var(--ink)}
  .num{width:38px}
}
@media (min-width:960px){
  .hero{padding:72px 0 88px}
  .hero-grid{grid-template-columns:1.15fr .85fr;align-items:center}
  .cards{grid-template-columns:repeat(3,1fr)}
  .price-grid{grid-template-columns:repeat(3,1fr);align-items:stretch}
  section{padding:88px 0}
  .footer-inner{grid-template-columns:auto auto 1fr;gap:24px}
  .footer-inner .muted{text-align:right}
}
.btn.btn-done,.btn.btn-done:disabled{background:var(--green);color:#fff;opacity:1;cursor:default}

/* Coin value guides (/coins/) */
.guide-body{padding:20px 20px 56px}
.guide-body h1{font-size:clamp(2rem,6vw,3rem);margin:10px 0 10px}
.guide-body h2{font-size:clamp(1.4rem,3.6vw,1.8rem);margin:40px 0 14px}
.guide-body ul,.guide-body ol{padding-left:1.2em;color:var(--ink-2)}
.guide-body li{margin:6px 0}
.guide-body a{color:var(--copper-d);text-underline-offset:3px}
.crumbs{font-size:.88rem;color:var(--muted)}
.crumbs a{color:var(--muted)}
.byline{font-size:.9rem;color:var(--muted);margin:0 0 18px}
.answer{font-size:1.12rem;line-height:1.6;background:var(--card);border:1px solid var(--line);border-left:4px solid var(--copper);border-radius:12px;padding:16px 18px;margin:0 0 18px}
.facts{display:grid;gap:10px;margin:0 0 18px}
.facts div{display:grid;gap:2px}
.facts dt{font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--copper-d)}
.facts dd{margin:0;color:var(--ink-2)}
.melt{background:#EAF3EC;border:1px solid #CFE3D5;border-radius:12px;padding:12px 16px;color:var(--ink-2)}
.melt strong{color:var(--green)}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:12px;background:var(--card)}
.table-wrap table{border-collapse:collapse;width:100%;font-size:.95rem;min-width:420px}
.table-wrap caption{text-align:left;font-weight:700;padding:12px 14px 4px;font-family:var(--serif)}
.table-wrap th,.table-wrap td{padding:10px 14px;border-top:1px solid var(--line);text-align:left;vertical-align:top}
.table-wrap thead th{font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);border-top:0}
.table-wrap tbody th{font-weight:600}
.table-wrap td{font-variant-numeric:tabular-nums;white-space:nowrap}
.table-note{font-size:.88rem;color:var(--muted);margin:8px 0 0}
.guide-cta{background:var(--ink);color:#FFF8EE;border-radius:var(--r);padding:24px 20px;margin:40px 0 8px}
.guide-cta h2{margin:0 0 8px;color:#FFF8EE}
.guide-cta p{color:#C9CED6;margin:0 0 16px}
.guide-cta .btn{background:var(--copper)}
.guide-cta .btn:hover{background:var(--copper-d)}
.guide-cta .fine{margin:10px 0 0;color:#9AA3AE}
.guide-cta .form-msg.ok{color:#9FD7B3}
.guide-cta .form-msg.err{color:#FFB4AB}
.guide-faq details p{padding-bottom:14px}
.related{list-style:none;padding:0 !important;display:grid;gap:8px}
.related a{display:block;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 14px;text-decoration:none;color:var(--ink);font-weight:600}
.related a:hover{border-color:var(--copper)}
.sources ol{font-size:.92rem}
.hub-list{list-style:none;padding:0 !important;display:grid;gap:10px}
.hub-list a{display:grid;gap:4px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;color:var(--ink)}
.hub-list a:hover{border-color:var(--copper)}
.hub-list span{color:var(--ink-2);font-size:.95rem}
.hub .answer{max-width:760px}
@media (min-width:760px){
  .facts{grid-template-columns:repeat(3,1fr)}
  .related{grid-template-columns:1fr 1fr}
  .hub-list{grid-template-columns:1fr 1fr}
  .guide-cta{padding:32px}
}