/* Wikibooks portrait · theme 4.1.2. Scoped to its recommendation page. */
.sf-wb-single{--wb-ink:#172820;--wb-blue:#255c94;--wb-gold:#c79a32;--wb-muted:#53665e;--wb-line:#d9d1bd;background:#f1eadc;color:var(--wb-ink);font:16px/1.65 Arial,Helvetica,sans-serif;overflow-wrap:break-word;min-height:60vh}
.sf-wb-single *,.sf-wb-single *::before,.sf-wb-single *::after{box-sizing:border-box}.sf-wb-single img{max-width:100%;height:auto}.sf-wb-single :focus-visible{outline:3px solid var(--wb-blue);outline-offset:3px}
.sf-wb-single .sf-wb-kicker{display:block;color:#87671f;text-transform:uppercase;letter-spacing:.12em;font-weight:800;font-size:11px}.sf-wb-breadcrumb{max-width:1340px;margin:auto;padding:17px 22px;font-size:12px;color:#607069}.sf-wb-breadcrumb a,.sf-wb-back a,.sf-wb-sources a{color:#275b85;text-underline-offset:3px}.sf-wb-breadcrumb span{margin:0 8px}
.sf-wb-hero{display:grid;grid-template-columns:minmax(210px,300px) minmax(0,1fr);gap:clamp(25px,4vw,60px);align-items:center;padding:clamp(45px,6vw,84px) max(22px,calc((100vw - 1300px)/2));background:radial-gradient(circle at 80% 20%,#fcf8eb 0,#e8dec9 68%,#e2d8c4 100%);border-bottom:1px solid #d5c9af}.sf-wb-logo-figure{min-width:0;margin:0}.sf-wb-logo-frame{min-height:230px;aspect-ratio:1.22;display:grid;place-items:center;padding:24px;background:#fffefa;border:1px solid #d3c6a9;border-top:4px solid var(--wb-blue);box-shadow:0 15px 35px #173a481a}.sf-wb-logo-frame img{display:block;width:100%;max-height:230px;object-fit:contain}.sf-wb-logo-fallback{font:700 clamp(28px,4vw,43px)/1.1 Georgia,serif;color:var(--wb-blue)}.sf-wb-logo-figure figcaption{margin-top:10px;color:#61726b;font-size:11px;text-align:center}
.sf-wb-hero-copy{min-width:0}.sf-wb-hero h1{font:400 clamp(39px,5vw,71px)/1.03 Georgia,'Times New Roman',serif;letter-spacing:-.035em;margin:9px 0 18px;overflow-wrap:anywhere}.sf-wb-hero h1 span{display:block;color:#245b88}.sf-wb-hero p{max-width:710px;margin:0;color:var(--wb-muted);font-size:17px;line-height:1.68}.sf-wb-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
.sf-wb-single .button{display:inline-flex;justify-content:center;align-items:center;min-height:52px;padding:12px 20px;border:1px solid #bcad8c;border-radius:2px;text-decoration:none;text-align:center;text-transform:uppercase;letter-spacing:.05em;font:800 11px/1.25 Arial,Helvetica,sans-serif;color:#142a21;background:#f8f4e8;transition:transform .15s ease}.sf-wb-single .button:hover{transform:translateY(-2px)}.sf-wb-single .button-primary{background:var(--wb-gold);border-color:#b18626}.sf-wb-single .button-outline{background:#fffaf0}
.sf-wb-grid,.sf-wb-models,.sf-wb-cta,.sf-wb-sources,.sf-wb-back{width:min(1300px,calc(100% - 44px));margin-left:auto;margin-right:auto}.sf-wb-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:23px;align-items:start;margin-top:29px;margin-bottom:29px}.sf-wb-main,.sf-wb-card{min-width:0;background:#fffdf7;border:1px solid var(--wb-line);box-shadow:0 10px 28px #243d3012}.sf-wb-main{padding:clamp(20px,3vw,38px)}.sf-wb-main h2,.sf-wb-main h3,.sf-wb-card h2,.sf-wb-models h2,.sf-wb-cta h2{font-family:Georgia,'Times New Roman',serif;line-height:1.14;color:var(--wb-ink)}.sf-wb-main h2{font-size:clamp(27px,3vw,37px);margin:8px 0 17px}.sf-wb-main h3{font-size:24px;margin:13px 0}.sf-wb-main p{color:var(--wb-muted);margin:0 0 15px;line-height:1.75}.sf-wb-rule{border:0;border-top:1px solid #e7dfd0;margin:28px 0}.sf-wb-steps{list-style:none;counter-reset:wb-step;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:0;margin:18px 0}.sf-wb-steps li{counter-increment:wb-step;min-width:0;padding:19px;background:#f4f5ef;border:1px solid #e0e4d8;color:#56675d;font-size:13px;line-height:1.55}.sf-wb-steps li::before{content:'0' counter(wb-step);display:block;font:700 25px Georgia,serif;color:#276596}.sf-wb-steps strong{display:block;color:#193d32;font:700 17px Georgia,serif;margin:5px 0}.sf-wb-note{padding:18px 20px;border-left:3px solid var(--wb-gold);background:#f6f0df;color:var(--wb-muted);font-size:14px}.sf-wb-note strong{color:var(--wb-ink)}
.sf-wb-sidebar{min-width:0;display:grid;gap:16px}.sf-wb-card{padding:23px}.sf-wb-card h2{font-size:21px;margin:0 0 12px;padding-bottom:11px;border-bottom:1px solid var(--wb-line)}.sf-wb-card dl{margin:0}.sf-wb-card dl div{padding:8px 0;border-bottom:1px solid #eee8da}.sf-wb-card dl div:last-child{border:0}.sf-wb-card dt{font-size:10px;color:#69786f;letter-spacing:.08em;text-transform:uppercase}.sf-wb-card dd{margin:2px 0;color:#405a4c;font-size:14px;font-weight:700}.sf-wb-card p{color:var(--wb-muted);font-size:14px;line-height:1.65;margin:0}
.sf-wb-models{padding:clamp(21px,3vw,35px);background:#fbf8f0;border:1px solid var(--wb-line);margin-bottom:27px}.sf-wb-section-intro h2{font-size:clamp(28px,3vw,37px);margin:5px 0}.sf-wb-section-intro p{margin:0;color:var(--wb-muted);font-size:14px}.sf-wb-model-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;margin-top:24px}.sf-wb-model-grid a{min-width:0;min-height:157px;padding:21px;display:flex;flex-direction:column;justify-content:space-between;text-decoration:none;background:#edf1ef;border:1px solid #d5e0dc;color:#19352c;transition:transform .15s ease,border-color .15s ease}.sf-wb-model-grid a:hover{transform:translateY(-3px);border-color:var(--wb-blue)}.sf-wb-model-grid span{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#536e62}.sf-wb-model-grid strong{font:700 24px/1.2 Georgia,serif}.sf-wb-model-grid small{color:#225e90;font-weight:800}
.sf-wb-cta{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:27px 30px;background:#142d23;border:1px solid #997b36;color:white;margin-bottom:23px}.sf-wb-cta h2{color:#efdb9a;font-size:27px;margin:6px 0}.sf-wb-cta p{max-width:710px;color:#e3e9e3;font-size:14px;margin:0}.sf-wb-cta .button{flex:none;background:transparent;border-color:#d4d8c9;color:white}.sf-wb-sources{font-size:12px;color:#66766b;margin-bottom:21px}.sf-wb-sources summary{cursor:pointer;min-height:44px;display:flex;align-items:center;font-weight:700}.sf-wb-sources p{margin:4px 0 10px}.sf-wb-back{padding-bottom:42px;font-size:12px;font-weight:800}
@media(max-width:1050px){.sf-wb-hero{grid-template-columns:220px minmax(0,1fr);padding:42px 24px}.sf-wb-grid{grid-template-columns:minmax(0,1fr) 275px}.sf-wb-steps{grid-template-columns:1fr}}
@media(max-width:760px){.sf-wb-hero{grid-template-columns:1fr;padding:34px 18px;gap:24px}.sf-wb-logo-figure{width:min(100%,350px);margin:auto}.sf-wb-logo-frame{min-height:190px;aspect-ratio:1.5}.sf-wb-hero h1{font-size:clamp(36px,8vw,54px)}.sf-wb-hero p{font-size:15px}.sf-wb-actions{display:grid}.sf-wb-actions .button{width:100%}.sf-wb-grid{width:calc(100% - 20px);grid-template-columns:1fr;gap:14px;margin:18px auto}.sf-wb-sidebar{grid-template-columns:repeat(2,minmax(0,1fr))}.sf-wb-models,.sf-wb-cta,.sf-wb-sources,.sf-wb-back{width:calc(100% - 20px)}.sf-wb-model-grid{grid-template-columns:1fr}.sf-wb-model-grid a{min-height:120px}.sf-wb-cta{display:block;padding:22px}.sf-wb-cta .button{margin-top:18px}}
@media(max-width:480px){.sf-wb-breadcrumb{padding:13px 12px}.sf-wb-sidebar{grid-template-columns:1fr}.sf-wb-main,.sf-wb-card,.sf-wb-models{padding:18px}.sf-wb-hero h1{font-size:clamp(34px,9vw,42px)}.sf-wb-model-grid strong{font-size:21px}}
@media(prefers-reduced-motion:reduce){.sf-wb-single .button,.sf-wb-model-grid a{transition:none}}