:root{--ink:#25231f;--muted:#6f6b63;--green:#4d7557;--line:#dedbd2;--soft:#f7f5ef;--serif:"Newsreader",Georgia,serif;--sans:"IBM Plex Sans",Arial,sans-serif;--mono:"IBM Plex Mono",monospace;--navh:92px}
    *{box-sizing:border-box}body{margin:0;color:var(--ink);background:#fdfcf9;font-family:var(--sans);line-height:1.55}a{color:inherit;text-decoration:none}.wrap{width:min(1080px,calc(100% - 40px));margin:auto}
    #nav{height:var(--navh);background:rgba(248,250,249,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid #ece9e2;display:flex;align-items:center;position:sticky;top:0;z-index:20}.navrow{display:flex;align-items:center;justify-content:space-between;gap:24px}.logo{display:flex;align-items:center;flex:none}.logo img{display:block;width:min(340px,calc(100vw - 80px));height:82px;object-fit:contain;object-position:left center}.links{display:flex;align-items:center;gap:24px;font-size:13.5px;font-weight:600;color:var(--muted)}.links a:hover,.links .active{color:var(--green)}.nav-dropdown{position:relative}.nav-dropdown summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:6px;padding-block:20px}.nav-dropdown summary::-webkit-details-marker{display:none}.nav-dropdown summary::after{content:"⌄";font-size:12px}.course-menu{position:absolute;top:calc(100% - 8px);left:50%;transform:translateX(-50%);min-width:225px;padding:9px;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:0 20px 50px -25px rgba(33,31,26,.18)}.course-menu a{display:block;padding:10px 12px;border-radius:8px;white-space:nowrap}.course-menu a:hover{background:#eef2e7}.course-label{display:block;margin:5px 8px 2px;padding-top:8px;border-top:1px solid var(--line);font-family:var(--mono);font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}.menu{display:none;border:0;background:none;font-size:25px}.mobile{display:none;position:fixed;inset:var(--navh) 0 0;background:#fff;padding:24px 32px;z-index:19;overflow-y:auto}.mobile.open{display:grid;align-content:start;gap:18px}.mobile a{font-weight:600}.mobile-courses{display:grid;gap:12px;padding:16px;border:1px solid var(--line);border-radius:12px}.mobile-courses strong{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--green)}
    .site-footer{padding:42px 0;border-top:1px solid var(--line);background:#f5f3ed}.footer-row{display:grid;grid-template-columns:minmax(180px,270px) 1fr auto;align-items:center;gap:28px}.footer-brand img{display:block;width:100%;max-width:270px;height:auto}.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:9px 18px;color:var(--muted);font-size:12px;font-weight:600}.footer-links a:hover,.footer-legal a:hover{color:var(--green)}.footer-legal{display:flex;gap:14px;color:var(--muted);font-size:11px}
main{padding:40px 0 88px;background:radial-gradient(circle at 12% 6%,rgba(77,117,87,.12),transparent 32%),radial-gradient(circle at 88% 30%,rgba(201,124,76,.09),transparent 28%)}
@media(max-width:1100px){.links{display:none}.menu{display:block}}
#nav .logo img{max-width:240px}.links{gap:12px;flex-wrap:nowrap;white-space:nowrap}
.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--green);margin:0 0 14px}
h1,h2{font-family:var(--serif);font-weight:500}
.bk-crumb{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 34px;font-size:12.5px;color:var(--muted)}.bk-crumb a{color:var(--green);font-weight:600}.bk-crumb a:hover{text-decoration:underline}
.bk-hero{display:grid;grid-template-columns:minmax(240px,380px) minmax(0,1fr);gap:56px;align-items:start}
.bk-cover{padding:34px;border:1px solid var(--line);border-radius:22px;background:var(--soft);box-shadow:0 22px 60px rgba(35,31,24,.1);position:sticky;top:calc(var(--navh) + 24px)}
.bk-cover img{display:block;width:100%;height:auto;border-radius:3px;box-shadow:0 18px 36px rgba(35,31,24,.22)}
.bk-info h1{font-size:clamp(40px,6vw,64px);line-height:1;margin:0}
.bk-author{margin:12px 0 24px;font-family:var(--serif);font-style:italic;font-size:21px;color:var(--green)}
.bk-summary{font-size:17px;line-height:1.7;color:#3d3a34;max-width:660px;margin:0 0 26px}
.bk-facts{display:flex;flex-wrap:wrap;gap:0;list-style:none;margin:0 0 26px;padding:0;border:1px solid var(--line);border-radius:12px;background:#fff;width:fit-content;max-width:100%}
.bk-facts li{padding:12px 20px;border-right:1px solid var(--line);font-size:14px;font-weight:600}.bk-facts li:last-child{border:0}
.bk-facts span{display:block;font:500 9px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:3px}
.bk-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px 22px}
.bk-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 26px;border:0;border-radius:999px;background:var(--green);color:#fff;font:700 14px var(--sans);cursor:pointer;transition:transform .18s,background .18s}
.bk-btn:hover{background:#385f43;transform:translateY(-1px)}.bk-btn:focus-visible,.bk-link:focus-visible,.bk-other:focus-visible{outline:3px solid rgba(77,117,87,.32);outline-offset:3px}
.bk-link{color:var(--green);font-size:13px;font-weight:700}.bk-link:hover{text-decoration:underline}
.bk-info .book-share{margin-top:30px;padding-top:22px;border-top:1px solid var(--line)}
.bk-info .book-share-btn{min-height:40px;padding:8px 15px;font-size:13px}
.bk-topics{margin-top:72px;padding-top:44px;border-top:1px solid var(--line)}
.bk-topics h2,.bk-more h2{font-size:clamp(30px,4vw,42px);line-height:1.05;margin:0 0 28px}
.bk-topics ol{list-style:none;counter-reset:t;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:0;padding:0}
.bk-topics li{counter-increment:t;position:relative;padding:22px 24px 22px 70px;border:1px solid var(--line);border-radius:16px;background:#fff;font-size:15px;line-height:1.6;color:#3d3a34}
.bk-topics li::before{content:counter(t,decimal-leading-zero);position:absolute;left:22px;top:20px;font:500 20px var(--serif);color:var(--green)}
.bk-pass{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,auto);gap:30px;align-items:center;margin-top:64px;padding:34px 38px;border:1px solid #c7d7d1;border-radius:24px;background:linear-gradient(125deg,#e5f0eb,#faf5e8 82%)}
.bk-pass h2{font-size:clamp(30px,4vw,40px);margin:0 0 8px;color:#193b39}.bk-pass p{margin:0;color:#455b55;font-size:14px;max-width:460px}.bk-pass .eyebrow{margin-bottom:10px}
.bk-pass .book-share{margin:0;min-width:280px;max-width:420px}.bk-pass .book-share-btn{min-height:40px;font-size:13px}
.bk-more{margin-top:72px;padding-top:44px;border-top:1px solid var(--line)}
.bk-others{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:16px}
.bk-other{display:block;font-size:12.5px;font-weight:700;line-height:1.3;border-radius:10px}.bk-other img{display:block;width:100%;aspect-ratio:3/4;object-fit:contain;padding:8px;margin-bottom:9px;border:1px solid var(--line);border-radius:10px;background:var(--soft);transition:transform .18s}.bk-other:hover img{transform:translateY(-3px)}.bk-other:hover span{color:var(--green)}
.digital-book-dialog{width:min(440px,calc(100% - 32px));padding:28px;border:0;border-radius:20px;background:#fff;color:var(--ink);box-shadow:0 30px 90px rgba(20,29,26,.28)}.digital-book-dialog::backdrop{background:rgba(22,29,26,.62)}.digital-book-dialog h2{margin:0 0 8px;font-size:32px;line-height:1.1}.digital-book-dialog p{margin:0 0 20px;color:var(--muted);font-size:14px}.digital-book-dialog label{display:block;margin-bottom:7px;font-size:13px;font-weight:700}.digital-book-dialog input{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:9px;font:inherit}.digital-book-dialog input:focus-visible{outline:3px solid rgba(77,117,87,.3)}.book-dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}.book-dialog-actions button{padding:11px 18px;border-radius:999px;border:1px solid var(--line);background:#fff;font:700 13px var(--sans);cursor:pointer}.book-dialog-actions button[type=submit]{border-color:var(--green);background:var(--green);color:#fff}.book-dialog-actions button:disabled{opacity:.6;cursor:wait}.digital-book-error{margin:12px 0 0!important;color:#9d2f25!important;font-size:13px!important}.digital-book-error[hidden]{display:none}
@media(max-width:1000px){.bk-others{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:860px){.bk-hero{grid-template-columns:1fr;gap:34px}.bk-cover{position:static;max-width:300px;margin:auto;padding:24px}.bk-topics ol{grid-template-columns:1fr}.bk-pass{grid-template-columns:1fr;padding:26px}.bk-pass .book-share{max-width:none}}
@media(max-width:560px){.bk-others{grid-template-columns:repeat(2,minmax(0,1fr))}.bk-facts li{padding:10px 14px}.bk-btn{width:100%}.bk-topics li{padding:20px 20px 20px 60px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}
.bk-detail-nav{display:flex;flex-wrap:wrap;gap:10px 24px;padding:22px 0;border-bottom:1px solid var(--line);font-size:13px;font-weight:600;color:var(--green)}
.bk-detail-nav a:hover{text-decoration:underline}
.bk-detail-nav a:focus-visible{outline:3px solid var(--green);outline-offset:4px}
.bk-detail-section{padding:54px 0;border-bottom:1px solid var(--line)}
.bk-detail-section h2{margin:0 0 22px;font-family:var(--serif);font-size:clamp(30px,4vw,42px);line-height:1.15}
.bk-detail-section h2[id],.bk-topics h2[id]{scroll-margin-top:120px}
.bk-section-intro{max-width:720px;margin:0 0 26px;color:var(--muted);font-size:16px;line-height:1.7}
.bk-readers{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:0;padding:0;list-style:none}
.bk-readers li{padding:20px 22px;border-left:3px solid var(--green);background:rgba(77,117,87,.045);font-size:15px;line-height:1.7}
.bk-reading-path{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:0;padding:0;list-style:none;counter-reset:reading-step}
.bk-reading-path li{counter-increment:reading-step;position:relative;padding:26px 26px 26px 62px;background:#fff;border:1px solid var(--line);border-radius:14px}
.bk-reading-path li::before{content:counter(reading-step,decimal-leading-zero);position:absolute;left:22px;top:29px;font:500 12px var(--mono);color:var(--green)}
.bk-reading-path h3,.bk-practices h3,.bk-reader-note h3{margin:0 0 10px;font-family:var(--serif);font-size:24px;font-weight:500;line-height:1.2}
.bk-reading-path p,.bk-practices p,.bk-reader-note p{margin:0;color:var(--muted);font-size:15px;line-height:1.7}
.bk-practices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.bk-practices article{padding:25px;background:#f3f6f0;border:1px solid var(--line);border-radius:14px}
.bk-reader-note{margin-top:26px;padding:24px;border-left:3px solid var(--green);background:#f6f3ed}
@media(max-width:760px){.bk-readers,.bk-reading-path,.bk-practices{grid-template-columns:1fr}.bk-detail-section{padding:38px 0}.bk-detail-nav{gap:14px 20px}.bk-reading-path li{padding:22px 22px 22px 58px}}