:root{--ink:#0B1F3A;--deep:#06122A;--gold:#D4AF37;--gold-d:#7A5E0C;--blue:#2D8CFF;--blue-d:#1F6FD1;--paper:#F3F6FB;--text:#1B2433;--muted:#566176;--line:#D5DEEC}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:#fff}
img{max-width:100%;height:auto}
a{color:var(--blue-d)}
a:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.skip{position:absolute;left:-999px;top:8px;background:var(--gold);color:var(--ink);padding:8px 14px;z-index:20}
.skip:focus{left:8px}
h1,h2,h3{font-family:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;color:var(--ink);line-height:1.15;margin:0 0 .5em}
h1{font-size:clamp(2.1rem,5vw,3.5rem);letter-spacing:-.01em}
h2{font-size:clamp(1.5rem,3vw,2rem);margin-top:1.4em}
h3{font-size:1.2rem;margin-top:1.6em}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}
.narrow{max-width:740px}
.small{font-size:.9rem;color:var(--muted)}
.top{background:#fff;border-bottom:3px solid var(--gold)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;padding-top:14px;padding-bottom:14px}
.brand{display:inline-flex;align-items:center;gap:10px;font-family:"Iowan Old Style",Palatino,Georgia,serif;font-weight:700;font-size:1.25rem;color:var(--ink);text-decoration:none}
.logo-mark{width:30px;height:30px;background:var(--ink);border-radius:7px;padding:3px}
nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
nav a{color:var(--ink);text-decoration:none;font-weight:600}
nav a:hover{text-decoration:underline;text-decoration-color:var(--gold);text-decoration-thickness:3px;text-underline-offset:6px}
.hero{background:linear-gradient(180deg,var(--deep),var(--ink));color:#fff;overflow:hidden}
.hero h1{color:#fff}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;padding-top:56px;padding-bottom:56px}
.lead{font-size:1.2rem;color:#D8E6FB;max-width:34em}
.hero p{max-width:36em}
.hero-art{position:relative;display:flex;justify-content:center}
.arcs{position:absolute;width:150%;max-width:640px;left:50%;top:50%;transform:translate(-50%,-48%);pointer-events:none}
.cover{position:relative;width:min(300px,70vw);height:auto;border-radius:3px;box-shadow:0 22px 50px rgba(0,0,0,.55),0 0 0 1px rgba(212,175,55,.35)}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-block;background:var(--gold);color:var(--ink);font-weight:700;padding:13px 22px;border-radius:3px;text-decoration:none;border:2px solid var(--gold)}
.btn:hover{background:#E4C45A}
.btn.ghost{background:transparent;color:inherit;border-color:currentColor}
.hero .btn.ghost{color:#fff}
.btn[aria-disabled="true"]{background:#E6E9F0;border-color:#E6E9F0;color:#4A5568;cursor:not-allowed;pointer-events:none}
.band{padding:56px 0}
.band.alt{background:var(--paper)}
.split{display:grid;grid-template-columns:1.3fr .8fr;gap:40px;align-items:start}
.two{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.two h2,.split h2{margin-top:0}
.buybox{border:2px solid var(--ink);padding:22px;background:#fff}
.buybox.dark{background:rgba(255,255,255,.06);border-color:var(--gold);margin-top:24px;max-width:420px}
.buybox p{margin:.4em 0}
.price{font-size:1.1rem}
.price .now{font-family:Georgia,serif;font-size:2.6rem;font-weight:700;color:var(--ink)}
.hero .price .now{color:#fff}
.price s{color:var(--muted);margin-left:8px}
.hero .price s,.hero .small{color:#B7C9E6}
dl.plain{margin:0}
dl.plain dt{font-family:"Iowan Old Style",Palatino,Georgia,serif;font-weight:700;font-size:1.15rem;color:var(--ink);margin-top:1.3em;padding-left:14px;border-left:4px solid var(--gold)}
dl.plain dd{margin:.2em 0 0;padding-left:18px}
ul.check{list-style:none;padding:0;margin:1em 0}
ul.check li{padding-left:28px;position:relative;margin:.5em 0}
ul.check li::before{content:"";position:absolute;left:3px;top:.55em;width:11px;height:6px;border-left:3px solid var(--gold-d);border-bottom:3px solid var(--gold-d);transform:rotate(-45deg)}
ul.cols{columns:2;column-gap:36px;padding-left:1.2em}
ul.cols li{break-inside:avoid;margin:.2em 0}
details{border-top:1px solid var(--line);padding:14px 0}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-weight:700;color:var(--ink)}
details p{margin:.6em 0 0}
.prose h1{margin-bottom:.2em}
.prose h2{font-size:1.35rem}
.prose ul{padding-left:1.2em}
mark.fill{background:#FFF0A8;color:#3B2F00;padding:1px 4px;border-radius:2px}
.foot{background:var(--deep);color:#C9D6EC;padding:44px 0 20px;margin-top:0}
.foot a{color:#fff}
.foot .brand{color:#fff}
.foot h2{font-size:1rem;color:var(--gold);margin:0 0 .6em;font-family:system-ui,sans-serif}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin:.35em 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.fine{border-top:1px solid rgba(255,255,255,.15);margin-top:28px;padding-top:16px;font-size:.85rem}
@media (max-width:820px){nav ul{gap:16px}.hero-grid,.split,.two,.foot-grid{grid-template-columns:1fr}.hero-art{order:-1;padding:10px 0}.arcs{width:120%}ul.cols{columns:1}.band{padding:40px 0}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}