:root{--ink:#183c39;--muted:#5a6b68;--accent:#21665d;--line:#dce3dd;--paper:#f6f7f2;--soft:#e9efdf}*{box-sizing:border-box}body{background:var(--paper);color:var(--ink);margin:0;font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.55}a{color:var(--accent);text-underline-offset:4px}button,input,select,textarea{font:inherit}button,.button{border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer;border-radius:7px;min-height:44px;padding:11px 17px;font-weight:600;text-decoration:none;display:inline-block}button:hover,.button:hover{filter:brightness(.94)}button:disabled{opacity:.5;cursor:not-allowed}.secondary{color:var(--accent);background:#fff;border-color:#b8cbc4}.textbutton{color:var(--accent);background:0 0;border:0;min-height:44px;padding:5px 0;text-decoration:underline}input,select,textarea{width:100%;min-height:46px;color:var(--ink);background:#fff;border:1px solid #9cafa8;border-radius:6px;padding:10px 12px}input[type=checkbox]{vertical-align:middle;width:20px;min-height:20px;margin-right:8px}input[type=file]{padding:8px}label{margin-bottom:8px;font-size:14px;font-weight:600;display:block}label input,label select{margin-top:7px}small,.small{font-size:13px}small{color:var(--muted);display:block}h1,h2,h3,p{overflow-wrap:anywhere}h1{letter-spacing:-1.6px;margin:14px 0 20px;font-size:clamp(34px,5vw,55px);font-weight:550;line-height:1.12}h2{font-size:26px;font-weight:550;line-height:1.25}h3{font-size:20px;font-weight:600;line-height:1.3}p{margin:10px 0 16px}.masthead{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;max-width:1280px;margin:auto;padding:25px 40px;display:flex}.brand{align-items:center;gap:13px;font-size:16px;font-weight:600;line-height:1.4;text-decoration:none;display:flex}.brand small{font-weight:400}.brandmark{border:1px solid var(--accent);border-radius:50%;place-items:center;width:45px;height:45px;font-family:Georgia,serif;font-size:29px;display:grid}.headernote{color:var(--muted);font-size:13px}main{max-width:1280px;min-height:70vh;margin:auto;padding:35px 40px 65px}.intro{padding:22px 0 24px}.intro p:not(.eyebrow){color:var(--muted);font-size:18px}.eyebrow{text-transform:uppercase;letter-spacing:1.7px;color:var(--accent);margin:0 0 10px;font-size:11px;font-weight:700}.searchpanel{border:1px solid var(--line);background:#fff;border-radius:10px;grid-template-columns:2fr 1fr 1.3fr;gap:18px;padding:24px;display:grid}.searchpanel label{margin-bottom:0}.searchpanel input,.searchpanel select{background:#fafbf8}.results{color:var(--muted);justify-content:space-between;align-items:center;padding:12px 0;font-size:14px;display:flex}.empty{text-align:center;background:#f0f3e9;border:1px dashed #b7c8bf;border-radius:10px;padding:55px 25px 65px}.empty p{max-width:530px;color:var(--muted);margin:12px auto 22px}.emptyicon{color:var(--accent);font-size:30px}.help{border-left:3px solid #9bad91;max-width:760px;margin-top:48px;padding:0 0 0 22px}.help h2{font-size:19px}.help p{color:var(--muted);font-size:14px}.sectiontitle{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;margin:27px 0 20px;display:flex}.sectiontitle span{color:var(--muted);font-size:13px}.bookgrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.book{border:1px solid var(--line);background:#fff;border-radius:9px;align-items:flex-start;gap:22px;min-width:0;padding:24px;display:flex}.cover{color:#6e8279;background:#f0f1e9;border-radius:3px;flex:0 0 95px;place-items:center;width:95px;min-height:135px;display:grid;overflow:hidden}.cover>span{text-align:center;padding:16px 4px}.cover small{font-size:10px}.cover img{object-fit:contain;width:100%;height:auto}.bookbody{flex:1;min-width:0}.book h3{margin:0 0 8px}.book h3 a{text-decoration:none}.book h3 a:hover{text-decoration:underline}.muted{color:var(--muted)}.book p{font-size:14px}.isbn{flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;display:flex}.isbn button{font-size:12px}.courses{border-top:1px solid var(--line);margin:12px 0;padding:0;font-size:13px;list-style:none}.courses li{padding:12px 0 0}.courses p{margin:5px 0;font-size:13px}.tag{background:var(--soft);border-radius:4px;margin:0 5px;padding:2px 7px;font-size:11px;display:inline-block}.resources{flex-direction:column;gap:12px;margin-top:18px;display:flex}.resources a{font-size:14px;font-weight:600}.resources small{font-size:11px}.shops{border-top:1px solid var(--line);flex-wrap:wrap;gap:12px;padding-top:14px;font-size:12px;display:flex}.shops span{width:100%;color:var(--muted)}.detail{max-width:920px;padding:35px}.detail .cover{flex-basis:160px;width:160px}.detail h3{font-size:28px}.detail .bookbody{padding-left:15px}footer{border-top:1px solid var(--line);max-width:1280px;color:var(--muted);justify-content:space-between;margin:auto;padding:26px 40px;font-size:12px;display:flex}.skip{z-index:50;background:#fff;padding:10px;position:absolute;top:-70px;left:12px}.skip:focus{top:10px}:focus-visible{outline-offset:4px;outline:3px solid #c17a26}.adminheading,.toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.tabs{flex-wrap:wrap;gap:10px;margin:22px 0 32px;display:flex}.formgrid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:20px 0;display:grid}.notice{overflow-wrap:anywhere;background:#e4eedf;border:1px solid #b1c5a7;border-radius:6px;padding:18px 22px}.error{color:#703c27;background:#fff0e8;border-color:#c98b6d}.adminrow{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;padding:18px 0;display:flex}.adminrow h3{margin:0}.adminrow p{margin:5px 0;font-size:13px}.adminrow button{flex-shrink:0}fieldset{border:1px solid #c8d6cc;border-radius:8px;margin:20px 0;padding:20px}legend{padding:0 8px;font-weight:700}.stickyactions{background:var(--paper);border-top:1px solid var(--line);flex-wrap:wrap;gap:12px;margin-top:30px;padding:18px 0;display:flex;position:sticky;bottom:0}.tablewrap{border:1px solid var(--line);max-height:550px;margin:20px 0;overflow-x:auto}table{border-collapse:collapse;background:#fff;width:100%;font-size:13px}th,td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);min-width:110px;padding:10px}th{background:#e9efdf;position:sticky;top:0}td input{min-width:130px}.panel{margin-top:28px}.guide{max-width:760px}.guide h3{margin-top:30px}pre{white-space:pre-wrap;overflow-wrap:anywhere;max-width:800px;font-size:12px}code{overflow-wrap:anywhere}@media (min-width:1400px){.bookgrid{grid-template-columns:repeat(3,minmax(0,1fr))}.book{display:block}.cover{margin-bottom:18px}}@media (max-width:800px){main{padding:25px 22px 45px}.masthead,footer{padding:20px 22px}.headernote{display:none}.searchpanel{grid-template-columns:1fr 1fr}.searchfield{grid-column:1/-1}.bookgrid{grid-template-columns:1fr}.formgrid{grid-template-columns:1fr 1fr}.detail{padding:22px}.detail .cover{flex-basis:100px;width:100px}}@media (max-width:480px){h1{letter-spacing:-1px}.searchpanel{grid-template-columns:1fr;padding:18px}.formgrid{grid-template-columns:1fr}.book{gap:16px;padding:18px}.cover{flex-basis:75px;width:75px;min-height:110px}.book h3{font-size:18px}.detail{display:block}.detail .bookbody{padding:20px 0 0}.results,.adminrow{align-items:flex-start}.tabs button{padding:9px;font-size:13px}.toolbar{align-items:stretch}footer{gap:20px}.brand{font-size:14px}}.category-nav{flex-wrap:wrap;gap:8px;margin:0 0 22px;display:flex}.category-nav button{color:var(--accent);background:#fff;border-color:#c0cec5;align-items:center;gap:8px;font-size:14px;display:flex}.category-nav button.active{background:var(--accent);color:#fff}.category-nav button span{border:1px solid;border-radius:50%;place-items:center;width:22px;height:22px;font-size:12px;display:grid}.category-section{margin:32px 0 48px;scroll-margin-top:20px}.category-heading{border-left:5px solid var(--accent);background:#e6eddf;border-radius:7px 7px 0 0;gap:18px;padding:22px 24px;display:flex}.category-number{color:var(--accent);font-family:Georgia,serif;font-size:30px;line-height:1.2}.category-heading h2{margin:0;font-size:25px}.category-heading p{color:var(--muted);margin:8px 0 0;font-size:13px}.category-note{background:#f0f3eb;margin:0;padding:12px 20px;font-size:14px}.book-list{border:1px solid var(--line);border-radius:0 0 8px 8px;overflow:hidden}.book-row{border-bottom:1px solid var(--line);background:#fff}.book-row:last-child{border-bottom:0}.book-row.is-selected{box-shadow:inset 4px 0 var(--accent)}.book-overview{align-items:stretch;display:flex}.book-select{color:var(--muted);cursor:pointer;flex-direction:column;flex:0 0 56px;justify-content:center;align-items:center;gap:7px;margin:0;font-size:11px;display:flex}.book-select input{accent-color:var(--accent);margin:0}.book-toggle{text-align:left;min-width:0;color:var(--ink);background:0 0;border:0;border-radius:0;flex:1;align-items:center;gap:22px;padding:20px 24px 20px 4px;font-weight:400;display:flex}.book-toggle:hover{filter:none;background:#f4f7f1}.row-cover{width:64px;height:90px;color:var(--muted);flex:0 0 64px;justify-content:center;align-items:center;font-size:10px;display:flex}.row-cover img{object-fit:contain;max-width:100%;max-height:90px}.row-main{flex:1;min-width:0;display:block}.row-courses{color:#245e51;margin-bottom:7px;font-size:12px;font-weight:700;line-height:1.4;display:block}.row-courses>span{margin-top:2px;font-size:14px;display:block}.row-title{margin-bottom:5px;font-size:19px;font-weight:700;line-height:1.35;display:block}.row-author,.row-publisher{color:var(--muted);font-size:13px;line-height:1.45;display:block}.row-isbn{font-variant-numeric:tabular-nums;margin-top:5px;font-size:12px;display:block}.row-tail{flex-direction:column;flex:0 0 130px;justify-content:center;align-self:stretch;align-items:flex-end;gap:14px;display:flex}.format-label{text-transform:uppercase;letter-spacing:.6px;background:#edf2e9;border-radius:4px;padding:4px 7px;font-size:10px}.expand-label{white-space:nowrap;color:var(--accent);font-size:13px;font-weight:700}.expand-label>span{margin-left:10px;font-size:22px}.book-expanded{background:#f7faf4;padding:0 24px 20px 146px}.book-expanded[hidden]{display:none}.book-expanded .courses{margin-top:0;padding-top:8px}.book-expanded .resources{grid-template-columns:repeat(2,minmax(0,1fr));margin-bottom:20px;display:grid}.resources small{font-size:12px;line-height:1.55}.row-actions{align-items:center;gap:25px;margin-top:14px;font-size:13px;display:flex}.course-requirement{background:#fff0ce;border-left:3px solid #b77720;padding:12px;font-size:14px}.selection-bar{z-index:10;background:#fff;border:1px solid #9ab2a5;border-radius:10px;justify-content:space-between;align-items:center;gap:16px;margin-top:25px;padding:18px 22px;display:flex;position:sticky;bottom:12px;box-shadow:0 4px 22px #173e3520}.selection-actions{align-items:center;gap:12px;display:flex}.selection-bar small{margin-top:4px}.shopping-page{max-width:1000px}.summary-actions{gap:12px;margin:24px 0;display:flex}.shopping-note{color:var(--muted);font-size:14px}.shopping-book{border:1px solid var(--line);background:#fff;border-radius:8px;margin:22px 0;padding:26px}.shopping-heading{gap:24px;display:flex}.shopping-heading>img{object-fit:contain;align-self:flex-start;width:80px;max-height:120px}.shopping-heading h2{margin:3px 0 10px;font-size:23px}.shopping-heading p{margin:5px 0;font-size:14px}.shopping-book .resources{margin-bottom:20px}.print-source{overflow-wrap:anywhere;margin-top:20px;font-size:11px}@media (max-width:700px){.category-heading{gap:12px;padding:18px 16px}.category-heading h2{font-size:21px}.book-select{flex-basis:40px}.book-toggle{flex-wrap:wrap;gap:12px;padding:16px 12px 16px 0}.row-cover{flex-basis:45px;width:45px;height:70px}.row-cover img{max-height:70px}.row-title{font-size:17px}.row-tail{flex-direction:row;flex-basis:100%;justify-content:space-between;align-items:center;gap:8px;padding-left:57px}.book-expanded{padding:0 16px 18px 40px}.book-expanded .resources{grid-template-columns:1fr}.selection-bar{flex-direction:column;align-items:stretch;padding:12px;bottom:6px}.selection-actions{flex-wrap:wrap;gap:8px}.selection-actions .button{padding:10px;font-size:13px}.selection-bar small{font-size:11px}.category-nav button{padding:8px 10px;font-size:12px}.shopping-book{padding:18px}.shopping-heading{gap:16px}.shopping-heading>img{width:60px}.shopping-heading h2{font-size:20px}}@media print{@page{size:A4;margin:14mm}body{color:#000;background:#fff;font-size:10pt}.masthead,footer,.skip,.no-print{display:none!important}main.shopping-page{max-width:none;padding:0}.shopping-page h1{font-size:24pt}.shopping-book{break-inside:avoid;border:0;border-top:1px solid #aaa;border-radius:0;margin:12pt 0;padding:12pt 0}.shopping-heading>img{width:55pt;max-height:80pt}.shopping-heading h2{font-size:15pt}.shopping-book p,.shopping-book .courses,.shopping-book .resources a{font-size:9pt}.shopping-book .resources{gap:7pt}.shopping-book .resources small,.print-source{font-size:8pt}.tag{background:0 0}a{color:#000}h2,h3{break-after:avoid}}.compact-shopping{max-width:1000px}.shopping-sheet{border:1px solid var(--line);background:#fff;margin:20px 0;padding:20px}.sheet-heading{flex-wrap:wrap;justify-content:space-between;gap:4px;padding-bottom:10px;font-size:13px;display:flex}.sheet-heading p{width:100%;margin:2px 0;font-size:11px}.compact-book{border-top:1px solid var(--line);break-inside:avoid;gap:16px;padding:13px 0;display:flex}.compact-book>img{object-fit:contain;flex-shrink:0;width:48px;height:70px}.compact-content{flex:1;min-width:0}.compact-content p{margin:2px 0;font-size:12px;line-height:1.35}.compact-content h2{margin:3px 0;font-size:17px;line-height:1.25}.compact-course{color:var(--accent);font-weight:700}.compact-content .compact-notes,.compact-source{font-size:11px}.compact-details{margin-top:6px;font-size:12px}.compact-details summary{cursor:pointer;color:var(--accent)}@media print{@page{size:A4;margin:10mm}.compact-shopping .shopping-sheet{break-after:page;border:0;margin:0;padding:0}.compact-shopping .shopping-sheet:last-child{break-after:auto}.sheet-heading{height:17mm;padding:0;font-size:9pt;line-height:1.2;display:block}.sheet-heading>span{float:right;font-size:8pt}.sheet-heading p{margin:2mm 0;font-size:7.5pt;line-height:1.2}.compact-book{gap:4mm;min-height:40mm;padding:2.5mm 0}.compact-book>img{width:13mm;height:19mm}.compact-content h2{margin:1mm 0;font-size:10pt;line-height:1.15}.compact-content p{margin:.4mm 0;font-size:8pt;line-height:1.15}.compact-content .compact-notes{font-size:7.5pt}.compact-source{font-size:7.5pt;line-height:1.1}.compact-course{color:#000}}.category-heading{color:#fff;background:#21665d;border-left-color:#143f39}.category-heading h2,.category-heading p{color:#fff}.login-panel{max-width:480px;margin:20px auto}.login-panel h1{font-size:36px}.login-panel details,.account-controls details{margin:24px 0}.account-controls form{max-width:480px}.account-controls{border:1px solid var(--line);background:#fff;border-radius:8px;margin-bottom:24px;padding:18px}details summary{cursor:pointer}.demo-video{max-width:420px;margin:0 0 26px}.demo-video h2{margin:0 0 12px;font-size:21px}.demo-player{aspect-ratio:16/9;background:#183c39;border-radius:8px;min-height:200px;position:relative;overflow:hidden}.demo-player iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.demo-play{background:#21665d;border:0;border-radius:0;flex-direction:column;justify-content:center;align-items:center;gap:12px;width:100%;height:100%;min-height:200px;display:flex;position:absolute;inset:0}.demo-play-icon{font-size:38px;line-height:1}.demo-video>p{color:var(--muted);margin:8px 0 0;font-size:12px}.video-settings{max-width:760px}.video-settings input{max-width:700px}