:root{--navy:#111b39;--blue:#225bcc;--cyan:#80d8ef;--purple:#7451d3;--ink:#17223a;--muted:#647085;--line:#e4e8f0;--surface:#f5f7fb}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;color:var(--ink);font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button,a,summary{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #ae71eb;outline-offset:5px}img{max-width:100%;object-fit:cover}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.16;letter-spacing:-.035em}h2{font-size:clamp(2rem,3.5vw,2.85rem);font-weight:800;margin-bottom:20px}h2>span{color:var(--blue)}.container{width:min(1160px,calc(100% - 64px));margin-inline:auto}.header{position:sticky;top:0;background:rgba(255,255,255,.97);border-bottom:1px solid 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var(--line);padding:24px;border-radius:8px}.review-empty>p{font-size:14px;color:var(--muted);margin:15px 0 0}.detail-aside{position:sticky;top:185px;height:fit-content;padding:25px;border:1px solid var(--line);border-radius:10px;background:#f7f9fc}.detail-aside h3{font-size:24px}.detail-aside p{color:var(--muted);font-size:15px}.detail-aside .price{margin-top:25px}.detail-aside .button{margin-top:24px;width:100%}.aside-catalog{display:block;text-align:center;font-size:13px;color:var(--muted);margin-top:15px}.detail-page footer{border-top:1px solid var(--line)}.detail-page html{scroll-padding-top:180px}@media(max-width:900px){.detail-hero{gap:30px}.detail-visual .product-art{padding:30px;min-height:430px}.detail-visual .cover-copy strong{font-size:66px}.detail-visual .art-footer{left:30px}.detail-content{grid-template-columns:1fr;gap:0}.detail-aside{display:none}.footer-top{flex-wrap:wrap}.detail-intro h1{font-size:36px}.receive-grid{gap:10px}.receive-grid>div{padding:17px}}@media(max-width:620px){.product-art .cover-copy small{max-width:180px;line-height:1.5}.job-stats{padding:13px;gap:10px}.job-stats strong{font-size:21px}.card-subtitle{min-height:0}.review-state{gap:7px}.detail-hero{grid-template-columns:1fr;padding-top:0;gap:29px;padding-bottom:40px}.detail-visual{position:static}.detail-visual .product-art{min-height:315px;padding:30px}.detail-visual .cover-copy{margin-top:23px}.detail-visual .cover-copy strong{font-size:62px}.detail-visual .cover-copy small{font-size:11px;max-width:190px}.detail-visual .product-art img{width:210px;height:210px;bottom:-40px}.detail-visual .art-footer{bottom:24px;font-size:10px}.visual-note{display:none}.visual-caption{padding:19px}.detail-intro h1{font-size:35px}.breadcrumb{font-size:12px;padding-block:21px;gap:8px}.detail-nav{top:76px}.detail-nav>.container{gap:23px;padding-block:15px}.detail-nav a{font-size:13px}.detail-content{padding-top:38px;padding-bottom:50px}.receive-grid{grid-template-columns:1fr}.receive-grid>div{display:grid;grid-template-columns:27px 1fr;gap:4px 12px}.receive-grid span{grid-row:span 2;margin:0}.receive-grid p{margin:0}.content-section{padding-top:44px;scroll-margin-top:147px}.content-main h2{font-size:29px}.source-note{overflow-wrap:anywhere}th,td{padding:12px 10px}table{font-size:13px}.footer-contact{font-size:14px}.level-options>a{padding:22px;gap:16px}.detail-intro .job-stats small{font-size:11px}.detail-page .purchase-panel{padding:21px}}@media(max-width:370px){.job-stats{grid-template-columns:1fr}.role-list li{flex-wrap:wrap}.product-bottom{flex-wrap:wrap}}
/* Shared materials, searchable catalog and illustrated role cards */
[hidden]{display:none!important}.product-button{background:#2260df;color:#fff}.product-button:hover{background:#154bc0}.product-button:focus-visible{outline-color:#88acff}.catalog .section-heading{margin-bottom:26px}.catalog-search{max-width:800px;margin:0 0 20px}.catalog-search label{font-size:14px;color:#4d5e79;font-weight:600;display:block;margin-bottom:8px}.search-input-wrap{position:relative;display:flex;align-items:center;gap:12px;background:white;border:1px solid #cbd7ea;border-radius:10px;padding:0 18px;box-shadow:0 3px 15px #1b3f7310}.search-input-wrap:focus-within{border-color:#2260df;outline:3px solid #2260df20}.search-input-wrap svg{width:23px;height:23px;fill:none;stroke:#6682ad;stroke-width:1.8;flex-shrink:0}.search-input-wrap input{font:inherit;min-height:59px;width:100%;border:0;background:none;outline:0;color:var(--ink);min-width:0}.search-input-wrap input::placeholder{color:#8793a6}.search-input-wrap input::-webkit-search-cancel-button{-webkit-appearance:none}.search-input-wrap button{border:0;background:#eef3fb;color:#42628d;font-size:13px;border-radius:5px;padding:6px 10px}.search-caption{font-size:14px;color:var(--muted);margin:10px 0 0}.search-count{font-size:13px;color:var(--muted);margin:0 0 19px}.search-empty{background:white;border:1px dashed #cbd7eb;border-radius:12px;text-align:center;padding:45px 24px}.search-empty h3{font-size:23px}.search-empty p{color:var(--muted)}.products{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.product{min-width:0}.product-body{padding:25px 23px}.product h3{font-size:23px}.card-subtitle{font-size:14px;min-height:64px}.book-cover{background:#f3f7fc;aspect-ratio:3/2;overflow:hidden;display:flex;align-items:center;justify-content:center}.book-cover img{width:100%;height:100%;object-fit:contain;display:block}.cover-link{display:block}.cover-link:hover .book-cover img{filter:brightness(1.025)}.job-stats{grid-template-columns:.55fr 1.45fr;padding:13px 12px;gap:10px}.job-stats small{font-size:11px}.job-stats strong{font-size:20px}.role-list li{font-size:13px}.role-list strong{font-size:12px}.review-state>span{color:#bd780e}.review-state{gap:8px}.review-state small{font-size:12px}.shared-copy{border-left:3px solid #5585e2;background:#f1f6ff;border-radius:0 7px 7px 0;padding:13px 14px;margin:20px 0 16px}.shared-copy strong{font-size:14px;color:#284f8a}.shared-copy p{font-size:14px;line-height:1.6;color:#4e6484;margin:7px 0 0}.catalog-includes{font-size:13px;line-height:1.9;color:#506789;margin:0 0 22px}.product-bottom{flex-wrap:wrap}.product-bottom .price{font-size:31px}.product-bottom .product-button{font-size:13px;padding:13px 19px}.detail-visual .book-cover{aspect-ratio:1/1;min-height:0}.detail-visual .book-cover img{object-fit:contain}.detail-visual .visual-note strong{font-weight:600;color:#3567ad}.detail-intro .shared-copy p{font-size:16px}.detail-intro .shared-copy strong{font-size:16px}.coverage-banner{display:flex;gap:20px;align-items:center;border-radius:11px;background:linear-gradient(120deg,#173a74,#255eb7);color:white;padding:23px;margin-bottom:20px}.one-book{display:grid;min-width:74px;justify-items:center;border-right:1px solid #ffffff40;padding-right:20px}.one-book>strong{font-size:46px;line-height:1.1}.one-book>span{font-size:10px;letter-spacing:1.4px;margin-top:5px}.coverage-banner>div:nth-child(2)>strong{font-size:17px;line-height:1.4;display:block}.coverage-banner p{font-size:14px;line-height:1.6;color:#d5e6ff;margin:7px 0 0}.role-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.role-card{border:1px solid #dde6f5;border-radius:11px;padding:22px;background:linear-gradient(145deg,#fff,#f5f8ff);min-width:0}.role-heading{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:19px}.role-icon{width:40px;height:40px;display:grid;place-items:center;background:#eaf1ff;border-radius:9px;color:#3867b8}.role-icon svg{width:23px;height:23px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.vacancy-badge{background:#e5eeff;color:#2356a6;font-size:13px;font-weight:800;border-radius:100px;padding:5px 12px}.role-card h3{font-size:20px;line-height:1.25;margin-bottom:17px;min-height:50px}.role-salary{border-top:1px solid #e3eaf5;padding-top:13px;display:grid;gap:5px}.role-salary>span{font-size:11px;color:var(--muted)}.role-salary>strong{font-size:21px;color:#233e65;letter-spacing:-.5px}.included-label{display:block;font-size:12px;color:#496895;margin-top:14px}.salary-breakdown{margin-top:16px;padding:15px 0}.salary-breakdown summary{font-size:13px;color:var(--muted);font-weight:500}.salary-breakdown p{font-size:13px}.salary-breakdown a{color:var(--blue);text-decoration:underline}.module-group{margin-top:30px}.module-group h3{font-size:21px;margin-bottom:9px}.module-group>p{font-size:15px;color:var(--muted)}.module-group .syllabus{margin-top:17px}.specific-heading{margin-top:40px;border-top:1px solid var(--line);padding-top:30px}.specific-heading h3{font-size:24px}.specific-heading p{font-size:16px;color:var(--muted)}.specific-group{border:1px solid var(--line);padding:20px;border-radius:10px;background:#f8faff}.specific-group h4{margin:0;color:#2b5394;font-size:17px}.specific-group details:last-child{border-bottom:0;padding-bottom:0}.review-empty .text-link{display:inline-block;margin-top:17px}.detail-page .content-section{scroll-margin-top:150px}@media(max-width:1099px) and (min-width:761px){.products{grid-template-columns:repeat(2,minmax(0,1fr))}.card-subtitle{min-height:42px}}@media(max-width:760px){.products{grid-template-columns:1fr}.card-subtitle{min-height:0}.product-body{padding:25px 26px}.product h3{font-size:25px}.job-stats strong{font-size:24px}.product-bottom .price{font-size:35px}.product-bottom .product-button{font-size:14px}.catalog-includes{font-size:14px}.role-list li{font-size:14px}.role-list strong{font-size:13px}.book-cover{aspect-ratio:3/2}.detail-visual .book-cover{aspect-ratio:3/2}.search-input-wrap{padding-inline:13px;gap:9px}.search-input-wrap input{font-size:16px;min-height:55px}.search-caption{font-size:13px}.coverage-banner{padding:21px 18px;gap:17px}.coverage-banner>div:nth-child(2)>strong{font-size:16px}.one-book{min-width:59px;padding-right:16px}.coverage-banner p{font-size:13px}.role-cards{gap:12px}.role-card{padding:17px}.role-card h3{font-size:18px;min-height:46px}.role-salary>strong{font-size:20px}.vacancy-badge{padding:5px 9px;font-size:12px}.role-icon{width:34px;height:34px}.role-heading{gap:7px}.specific-group{padding:17px}}@media(max-width:440px){.role-cards{grid-template-columns:1fr}.role-card h3{min-height:0}.role-heading{margin-bottom:14px}.role-card{padding:20px}.role-salary{display:flex;justify-content:space-between;gap:12px;align-items:center}.role-salary>span{max-width:120px}.role-salary>strong{white-space:nowrap}}@media(max-width:370px){.job-stats{grid-template-columns:1fr}.coverage-banner{align-items:flex-start}.one-book{min-width:50px}.search-input-wrap button{padding:6px;font-size:12px}}
/* Authorized student testimonials */
.review-state>span,.testimonial-stars{color:#e5a316;letter-spacing:2px}.review-state small{font-size:12px}.testimonials-context{font-size:16px;color:var(--muted);margin-bottom:24px}.testimonials-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.testimonial-card{display:flex;flex-direction:column;margin:0;padding:25px;border:1px solid #e1e8f3;background:linear-gradient(145deg,#fff,#f7faff);border-radius:12px;min-width:0}.testimonial-stars{font-size:21px;line-height:1;margin-bottom:19px}.testimonial-card blockquote{margin:0 0 25px;flex:1}.testimonial-card blockquote p{font-size:16px;line-height:1.75;color:#435570;margin:0;overflow-wrap:anywhere}.testimonial-card figcaption{display:flex;align-items:center;gap:11px;border-top:1px solid #e4ebf6;padding-top:17px}.testimonial-card figcaption strong{font-size:14px;color:#233f6a;overflow-wrap:anywhere}.testimonial-avatar{height:37px;width:37px;flex-shrink:0;display:grid;place-items:center;background:#e8f0ff;color:#416cb2;border-radius:50%;font-size:12px;font-weight:700;letter-spacing:.5px}@media(max-width:620px){.testimonials-grid{grid-template-columns:1fr;gap:15px}.testimonial-card{padding:23px}.testimonial-card blockquote p{font-size:16px}.testimonial-card blockquote{margin-bottom:21px}}
.samples-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin-top:24px}.samples-grid figure{margin:0;min-width:0}.sample-link{display:block;border:1px solid #dce6f3;border-radius:10px;overflow:hidden;background:#fff;box-shadow:0 5px 15px #203b6710}.sample-link img{display:block;width:100%;height:auto;aspect-ratio:3/4;object-fit:contain;object-position:top;background:white}.sample-link>span{display:block;text-align:center;background:#eef4ff;color:#2459b5;font-size:12px;font-weight:700;padding:10px}.sample-link:hover{border-color:#2260df}.samples-grid figcaption{font-size:13px;color:#536785;margin-top:10px;line-height:1.5}.sample-dialog{width:min(870px,calc(100% - 24px));max-height:92dvh;border:0;padding:20px;border-radius:12px}.sample-dialog-head{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:18px}.sample-dialog-head h2{font-size:20px;margin:0;line-height:1.3}.sample-dialog-head button{border:0;border-radius:6px;background:#edf2fb;color:#253e69;font-size:27px;line-height:1;width:40px;height:40px;flex-shrink:0}.sample-image-wrap{background:#f3f6fb;padding:10px;border-radius:6px}.sample-image-wrap img{display:block;width:100%;height:auto;max-width:749px;margin:auto;object-fit:contain}.sample-dialog>a{display:inline-block;margin-top:15px;font-size:14px;color:#225bcc;text-decoration:underline}@media(max-width:620px){.samples-grid{grid-template-columns:1fr;gap:24px}.sample-link img{max-height:400px;aspect-ratio:auto}.sample-dialog{padding:14px}.sample-dialog-head h2{font-size:17px}.sample-image-wrap{padding:0}.samples-grid figcaption{font-size:14px}}
/* Material details: review totals, savings and accessible image carousel. */
.review-state{display:flex;align-items:center;flex-wrap:wrap;gap:9px}.review-state>span{color:#f5b625;letter-spacing:2px}.review-state>small{color:#586378;font-size:13px;letter-spacing:0;font-weight:500}.savings{display:block;color:#c4520b;font-size:14px;font-weight:750;margin:5px 0 8px}.detail-aside .savings{margin-bottom:18px}.material-carousel{min-width:0;scroll-margin-top:100px}.carousel-track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:thin;border-radius:20px;background:#f1f4fa;overscroll-behavior-x:contain}.material-slide{flex:0 0 100%;min-width:0;margin:0;scroll-snap-align:start;scroll-snap-stop:always}.material-slide>.book-cover,.material-slide>.sample-link{height:350px;display:flex;align-items:center;justify-content:center;border-radius:0;position:relative}.material-slide .book-cover img{width:100%;height:100%;object-fit:contain}.material-slide>.sample-link>img{height:100%;width:100%;object-fit:contain;padding:12px}.material-slide>.sample-link>span{position:absolute;bottom:15px;background:#132445e8;border-radius:30px;padding:6px 14px;color:#fff;font-size:12px}.material-slide>figcaption{text-align:center;padding:10px 14px 15px;color:#4a5870;font-size:13px;min-height:45px}.carousel-controls{display:flex;align-items:center;justify-content:center;gap:22px;margin-top:12px}.carousel-controls button{border:1px solid #d3ddeb;background:#fff;color:#1459be;border-radius:50%;height:38px;width:38px;font-size:22px;cursor:pointer}.carousel-status{font-size:13px;color:#53627b}.carousel-tabs{display:flex;justify-content:center;gap:6px;margin:12px 0}.carousel-tabs button{padding:8px 10px;border:1px solid #d3ddeb;background:#fff;border-radius:8px;font:inherit;font-size:12px;color:#455676;cursor:pointer}.carousel-tabs button[aria-current=true]{background:#175bc0;border-color:#175bc0;color:#fff}.topic-list{padding:3px 28px 22px 49px;margin:0;color:#566176;font-size:14px;line-height:1.7}.topic-list li{padding:5px 0}.syllabus-source{font-size:13px;color:#596780}.syllabus-source a{text-decoration:underline}.material-carousel button:focus-visible,.carousel-track:focus-visible{outline:3px solid #e7a62b;outline-offset:3px}@media(max-width:760px){.material-slide>.book-cover,.material-slide>.sample-link{height:310px}.topic-list{padding-left:30px;padding-right:18px}.carousel-tabs button{padding:8px}.product-bottom{align-items:flex-end}}
.carousel-tabs{flex-wrap:wrap}.purchase-panel .purchase-button{display:flex;width:100%;justify-content:center;margin-top:18px}.detail-aside .purchase-button{width:100%;justify-content:center}
