:root{
  --ink:#1e2420;--ink-soft:#4a534d;--paper:#f7f3ea;--card:#fffdf8;--line:#e2dacb;
  --forest:#2e4a3b;--forest-deep:#1f3529;--rust:#b4552a;--rust-deep:#933f1b;--sand:#efe6d4;
  --note:#e8efe6;--warn:#f8e6dc;--radius:10px;--max:1120px;--read:720px;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 var(--sans)}
img,svg{max-width:100%;height:auto}
a{color:var(--forest);text-underline-offset:3px}
a:hover{color:var(--rust)}
h1,h2,h3{font-family:var(--serif);line-height:1.2;color:var(--forest-deep);font-weight:700}
h1{font-size:clamp(2rem,5vw,3.1rem);margin:.2em 0 .4em}
h2{font-size:clamp(1.45rem,3vw,1.9rem);margin:2em 0 .5em}
h3{font-size:1.2rem;margin:1.6em 0 .4em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;z-index:10}

/* header */
.site-header{background:var(--forest-deep);color:#fff}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-family:var(--serif);font-weight:700;font-size:1.25rem}
.brand:hover{color:#fff}
.brand svg{width:34px;height:34px}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{color:#e9efe9;text-decoration:none;padding:8px 12px;border-radius:6px;font-size:.97rem}
.nav a:hover,.nav a[aria-current]{background:rgba(255,255,255,.12);color:#fff}
.nav a.cta{background:var(--rust);color:#fff}
.nav a.cta:hover{background:var(--rust-deep)}

/* hero */
.hero{background:linear-gradient(180deg,var(--forest-deep),var(--forest));color:#f1f5f1;padding:64px 0 72px}
.hero h1{color:#fff;max-width:16ch}
.hero p{font-size:1.15rem;max-width:58ch;color:#dbe5dc}
.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:.8rem;font-weight:700;color:#e6b48f}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-block;padding:13px 22px;border-radius:8px;font-weight:700;text-decoration:none;border:2px solid transparent;font-size:1rem;cursor:pointer}
.btn-primary{background:var(--rust);color:#fff}
.btn-primary:hover{background:var(--rust-deep);color:#fff}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.btn-outline{border-color:var(--forest);color:var(--forest)}
.btn-outline:hover{background:var(--forest);color:#fff}
.btn[aria-disabled=true]{background:#9aa39c;color:#fff;cursor:default}

/* sections */
.section{padding:64px 0}
.section.alt{background:var(--sand)}
.section-head{max-width:640px;margin-bottom:28px}
.section-head h2{margin-top:0}
.section-head p{color:var(--ink-soft)}
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(30,36,32,.08)}
.card h3{margin:.3em 0 .4em;font-size:1.3rem}
.card h3 a{text-decoration:none;color:var(--forest-deep)}
.card h3 a::after{content:"";position:absolute;inset:0}
.card{position:relative}
.card p{color:var(--ink-soft);margin:0 0 14px;flex:1}
.tag{display:inline-block;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--rust-deep);background:#f6e3d7;padding:3px 9px;border-radius:99px}
.meta{font-size:.88rem;color:var(--ink-soft)}
.icon{width:42px;height:42px;color:var(--forest)}

/* book promo */
.book{display:grid;grid-template-columns:minmax(220px,320px) 1fr;gap:48px;align-items:center}
.cover{aspect-ratio:3/4;background:linear-gradient(160deg,var(--forest) 0%,var(--forest-deep) 70%);border-radius:6px 14px 14px 6px;box-shadow:0 18px 40px rgba(20,30,24,.35),inset 8px 0 0 rgba(0,0,0,.18);color:#fff;padding:30px 26px;display:flex;flex-direction:column;justify-content:space-between;font-family:var(--serif)}
.cover .c-top{font-size:.8rem;letter-spacing:.2em;text-transform:uppercase;color:#e6b48f;font-family:var(--sans);font-weight:700}
.cover .c-title{font-size:2rem;line-height:1.1;font-weight:700}
.cover .c-rule{height:3px;width:60px;background:var(--rust);margin:14px 0}
.cover .c-sub{font-size:1rem;color:#d7e1d8}
.cover svg{width:70px;height:70px;color:#e6b48f}
.price{font-family:var(--serif);font-size:2.2rem;font-weight:700;color:var(--forest-deep)}
.checks{list-style:none;padding:0;margin:18px 0}
.checks li{padding-left:30px;position:relative;margin:8px 0}
.checks li::before{content:"";position:absolute;left:0;top:.35em;width:18px;height:18px;border-radius:50%;background:var(--forest) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/12px no-repeat}
.chapters{columns:2 280px;column-gap:40px;padding-left:1.4em}
.chapters li{break-inside:avoid;margin:0 0 10px}
.chapters li strong{display:block;color:var(--forest-deep)}
.chapters li span{color:var(--ink-soft);font-size:.94rem}

/* article */
.article-head{background:var(--sand);padding:40px 0 34px;border-bottom:1px solid var(--line)}
.crumbs{font-size:.88rem;color:var(--ink-soft)}
.crumbs a{color:var(--ink-soft)}
.article-head h1{max-width:24ch}
.layout{display:grid;grid-template-columns:minmax(0,var(--read)) 260px;gap:56px;padding:40px 0 64px;justify-content:space-between}
.prose{min-width:0}
.prose p,.prose li{max-width:68ch}
.prose .lede{font-size:1.2rem;color:var(--ink-soft)}
.prose h2{scroll-margin-top:20px;padding-top:.4em;border-top:1px solid var(--line)}
.prose h2:first-of-type{border-top:0}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin:.3em 0}
.table-wrap{overflow-x:auto;margin:1.4em 0;border:1px solid var(--line);border-radius:8px;background:var(--card)}
table{border-collapse:collapse;width:100%;font-size:.93rem}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--sand);font-weight:700;color:var(--forest-deep)}
tr:last-child td{border-bottom:0}
aside.note,aside.warning{border-radius:8px;padding:16px 18px 16px 52px;margin:1.5em 0;position:relative}
aside.note{background:var(--note);border-left:4px solid var(--forest)}
aside.warning{background:var(--warn);border-left:4px solid var(--rust)}
aside.note::before,aside.warning::before{position:absolute;left:16px;top:14px;font-weight:800;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font-size:.85rem;color:#fff}
aside.note::before{content:"i";background:var(--forest);font-family:Georgia,serif;font-style:italic}
aside.warning::before{content:"!";background:var(--rust)}
aside p:first-child{margin-top:0}aside p:last-child{margin-bottom:0}
.example{background:var(--card);border:1px solid var(--line);border-top:4px solid var(--forest);border-radius:8px;padding:6px 22px 14px;margin:1.8em 0}
.example h3{margin-top:.8em}
.toc{position:sticky;top:20px;align-self:start;font-size:.92rem}
.toc h2{font-family:var(--sans);font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;color:var(--ink-soft);margin:0 0 10px;border:0;padding:0}
.toc ol{list-style:none;padding:0;margin:0;border-left:2px solid var(--line)}
.toc a{display:block;padding:5px 0 5px 14px;color:var(--ink-soft);text-decoration:none;margin-left:-2px;border-left:2px solid transparent}
.toc a:hover{color:var(--forest);border-left-color:var(--forest)}
.disclaimer{font-size:.88rem;color:var(--ink-soft);border-top:1px solid var(--line);margin-top:40px;padding-top:16px}
.promo{background:var(--forest-deep);color:#e3ebe4;border-radius:var(--radius);padding:28px;margin-top:40px}
.promo h2{color:#fff;margin:0 0 8px;border:0;padding:0;font-size:1.5rem}
.promo p{margin:0 0 18px}

/* forms / plain pages */
.page{padding:48px 0 72px}
.page .prose{max-width:var(--read)}
.contact-box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin:24px 0}

/* footer */
.site-footer{background:var(--forest-deep);color:#c5d1c7;padding:44px 0 30px;font-size:.93rem}
.site-footer a{color:#e9efe9}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px}
.site-footer h2{font-family:var(--sans);font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;color:#e6b48f;margin:0 0 10px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:6px 0}
.foot-base{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:18px;color:#9fb0a3}

@media (max-width:900px){
  .layout{grid-template-columns:1fr;gap:0}
  .toc{position:static;order:-1;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:16px;margin-bottom:24px}
  .book{grid-template-columns:1fr;gap:32px}
  .cover{max-width:280px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .site-header .wrap{padding-top:10px;padding-bottom:10px}
  .nav a{padding:6px 9px;font-size:.92rem}
  .hero{padding:44px 0 52px}
  .section{padding:48px 0}
  .foot-grid{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr}
}
@media print{.site-header,.site-footer,.toc,.promo{display:none}body{background:#fff}}