/* Scoped publishing layer. Original cover images and learner controls are retained. */
.ck10-panel{box-sizing:border-box;margin:32px 0;padding:clamp(20px,3vw,36px);border:1px solid #d8e1ec;border-radius:18px;background:#f7f9fc;color:#172b49;line-height:1.65;overflow-wrap:anywhere}
.ck10-panel h2{font-size:clamp(1.4rem,2.5vw,2rem);line-height:1.22;margin:0 0 16px;color:#102744}.ck10-panel h3{font-size:1.15rem;line-height:1.4;color:#102744}.ck10-panel p{color:#334c68}.ck10-panel a{color:#1453a0;text-decoration:underline;text-underline-offset:3px}.ck10-panel .ck-eyebrow{font-size:.75rem;letter-spacing:.09em;font-weight:800;color:#355477}

/* A single visual catalogue with optional comparison, using its existing covers. */
.ck10-advisor{margin:20px 0 22px;padding:20px 0;border-top:1px solid #d8e1ec;border-bottom:1px solid #d8e1ec;color:#172b49}
.ck10-advisor-heading,.ck10-results-heading{display:flex;justify-content:space-between;align-items:center;gap:16px}.ck10-advisor h2{font-size:20px;line-height:1.3;color:#102744;margin:0 0 5px}.ck10-advisor p{margin:0;color:#4a5f77;font-size:14px}.ck10-compare-actions{display:flex;gap:8px;flex-shrink:0}
.ck10-advisor button{min-height:44px;border:1px solid #b8c7d8;border-radius:8px;padding:8px 14px;font:inherit;font-size:14px;font-weight:700;background:white;color:#173653;cursor:pointer}.ck10-advisor [data-ck-compare-open]{background:#102f50;color:white;border-color:#102f50}.ck10-advisor button:disabled{background:#edf1f5;color:#53677e;border-color:#d1dbe6;cursor:default}
.ck10-advisor-controls{display:flex;align-items:center;flex-wrap:wrap;gap:12px 24px;margin-top:15px}.ck10-advisor-controls label{display:flex;align-items:center;gap:10px;font-size:14px;color:#173653}.ck10-advisor select{max-width:100%;min-height:44px;padding:8px 10px;border:1px solid #b8c7d8;border-radius:7px;background:#fff;color:#173653;font:inherit}.ck10-bookshelf-help{position:relative;font-size:13px}.ck10-bookshelf-help summary{cursor:pointer;padding:12px 0;color:#355477}.ck10-bookshelf-help[open]{flex-basis:100%}.ck10-bookshelf-help p{margin:6px 0 12px}.ck10-advisor .ck10-advisor-status{margin-top:12px;font-size:13px}.ck10-empty{padding:14px 0}
.ck10-advisor input[type=checkbox],.ck10-card-controls input{width:18px;height:18px;accent-color:#174e83;flex-shrink:0;margin:0}.ck10-card-controls{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;border-top:1px solid #e1e8f0;margin-top:15px;padding-top:6px}.ck10-card-controls label{min-height:38px;display:flex;gap:7px;align-items:center;font-size:13px;color:#355477;cursor:pointer}.ck10-card-controls input:disabled{cursor:default}
.ck-v10-book-archive .ck18-catalogue-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:20px;justify-content:stretch}
.ck-v10-book-archive .ck18-catalogue-card{box-sizing:border-box;display:grid!important;grid-template-columns:112px minmax(0,1fr)!important;align-items:start;gap:20px;padding:20px;min-height:0;border:1px solid #d5dfeb;border-radius:12px;background:white;box-shadow:none}
.ck-v10-book-archive .ck18-catalogue-card .ck-v10-book-cover{width:112px!important;padding:0!important;align-self:start;aspect-ratio:auto!important}.ck-v10-book-archive .ck18-catalogue-card .ck-v10-book-cover img{max-width:100%;object-fit:contain!important;box-shadow:0 4px 12px #0b27451a!important;transform:none!important}.ck-v10-book-archive .ck18-catalogue-card .ck-v10-book-copy{padding:0;min-width:0}.ck-v10-book-archive .ck18-catalogue-card h3{font-size:18px;line-height:1.4;margin:5px 0 8px}.ck-v10-book-archive .ck18-catalogue-card .ck-v10-book-subtitle{font-size:13px;line-height:1.5;font-weight:400;color:#4a5f77;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.ck-v10-book-archive .ck18-book-labels{min-height:0}.ck-v10-book-archive .ck18-catalogue-card .ck-v10-book-actions{display:flex!important;flex-direction:row;flex-wrap:wrap;align-items:center;gap:10px 16px;margin-top:6px!important}.ck-v10-book-archive .ck18-catalogue-card .ck-v10-amazon-btn{display:inline-flex;gap:6px;font-size:12px;padding:9px 12px;min-height:40px}
.ck-v10-book-archive .ck18-catalogue-card.ck10-is-selected{border-color:#1e5a98;box-shadow:0 0 0 1px #1e5a98}
.ck10-comparison-results{margin-top:22px;padding:22px;border:1px solid #cad7e5;border-radius:12px;background:#fff;scroll-margin-top:90px}.ck10-selected-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:24px;margin-top:22px}.ck10-selected-book{min-width:0;display:flex;flex-direction:column}.ck10-selected-cover{display:block;align-self:start;width:88px;max-width:100%;margin-bottom:14px}.ck10-selected-cover img{display:block;width:100%;height:auto;object-fit:contain;box-shadow:0 4px 12px #0b27451a}.ck10-selected-book h3{font-size:16px;line-height:1.4;margin:0 0 14px;color:#102744}.ck10-selected-book h3 a{color:inherit;text-decoration:none}.ck10-selected-book dl{margin:0 0 16px;display:grid;gap:0}.ck10-selected-book dl>div{padding:10px 0;border-top:1px solid #e1e8f0}.ck10-selected-book dt{font-size:12px;font-weight:700;color:#50657c;margin-bottom:4px}.ck10-selected-book dd{margin:0;color:#173653;font-size:14px;line-height:1.5}.ck10-selected-details{margin-top:auto;color:#1453a0;font-size:14px;font-weight:700}
.ck10-owned-note{padding:12px!important;background:#edf4fc!important;color:#183e6a!important;font-size:.9rem!important}
.ck10-advisor :focus-visible,.ck10-card-controls :focus-visible{outline:3px solid #1764be;outline-offset:3px}.ck10-advisor[hidden],.ck10-advisor [hidden],.ck10-card-controls[hidden],[data-ck-catalogue-book][hidden]{display:none!important}
@media(max-width:850px){.ck-v10-book-archive .ck18-catalogue-grid{grid-template-columns:minmax(0,1fr)!important}}
@media(max-width:560px){.ck10-advisor-heading,.ck10-results-heading{align-items:start;flex-direction:column}.ck10-advisor-controls{align-items:start;flex-direction:column;gap:10px}.ck10-advisor-controls label:first-child{flex-wrap:wrap}.ck10-compare-actions{flex-wrap:wrap}.ck-v10-book-archive .ck18-catalogue-card{grid-template-columns:80px minmax(0,1fr)!important;gap:14px;padding:14px}.ck-v10-book-archive .ck18-catalogue-card .ck-v10-book-cover{width:80px!important}.ck-v10-book-archive .ck18-catalogue-card h3{font-size:16px}.ck10-comparison-results{padding:16px}.ck10-selected-grid{grid-template-columns:minmax(0,1fr);gap:22px}.ck10-selected-book+.ck10-selected-book{border-top:2px solid #d8e1ec;padding-top:22px}}
/* Purchase controls: label spans must never inherit touch-target heights. */
.ck-book-purchase{display:flex!important;flex-wrap:wrap!important;align-items:center!important;gap:12px!important}
.ck-book-purchase > a.ck-amazon-btn{box-sizing:border-box!important;display:inline-flex!important;flex-direction:row!important;align-items:center!important;justify-content:center!important;gap:8px!important;flex:0 0 auto!important;align-self:center!important;justify-self:start!important;width:max-content!important;max-width:100%!important;min-width:0!important;height:44px!important;min-height:44px!important;max-height:44px!important;padding:0 16px!important;font-size:14px!important;line-height:20px!important;white-space:nowrap!important;border-radius:8px!important;box-shadow:none!important}
.ck-book-purchase > a.ck-amazon-btn > span{box-sizing:border-box!important;display:inline-flex!important;align-items:center!important;flex:0 0 auto!important;width:auto!important;min-width:0!important;height:auto!important;min-height:0!important;max-height:none!important;padding:0!important;margin:0!important;line-height:20px!important}
.ck-book-purchase .ck-inline-market{min-width:0;max-width:100%}.ck-book-purchase .ck-market-selector{max-width:100%;height:44px;margin:0}.ck-book-purchase .ck-market-selector select{min-width:0;max-width:100%;height:42px!important;min-height:0!important;color:#172b49;background:#fff}
@media(max-width:700px){.ck-book-purchase .ck-inline-market{flex-basis:100%}.ck-book-purchase > a.ck-amazon-btn{flex-grow:0!important}}

.ck-book-detail{grid-template-columns:minmax(0,330px) minmax(0,1fr);gap:clamp(24px,4vw,55px)}.ck-book-detail-copy,.ck-book-detail-cover,.ck-book-content>*{min-width:0}.ck-book-detail-copy h1{overflow-wrap:anywhere}
@media(max-width:700px){.ck-book-detail{grid-template-columns:minmax(0,1fr)!important;gap:24px}.ck-book-detail-cover{max-width:280px;margin-inline:auto}.ck-book-content{grid-template-columns:minmax(0,1fr)}.ck10-panel{margin-block:24px}}
@media print{.ck10-advisor-controls,.ck10-compare-actions,.ck10-card-controls,.ck10-results-heading button{display:none!important}.ck10-panel{break-inside:avoid;background:#fff;color:#000}}

/* Keep advanced catalogue filters available without filling the first screen. */
.ck-v10-book-archive .ck18-book-archive-head{padding:24px!important;margin-bottom:20px}.ck10-catalogue-filters{display:flex!important;flex-wrap:wrap;align-items:end;gap:12px!important;margin:20px 0!important}.ck10-catalogue-filters>label{flex:1 1 240px;max-width:440px}.ck10-more-filters{flex:0 1 auto;order:4;max-width:100%;width:100%}.ck10-more-filters summary{font-size:13px;font-weight:700;color:#355477;cursor:pointer;padding:10px 0}.ck10-filter-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:8px 0}.ck10-filter-options label{min-width:0}.ck10-filter-options select{max-width:100%;width:100%}.ck10-catalogue-filters>.ck22-clear{min-height:44px;display:inline-flex;align-items:center}
@media(max-width:560px){.ck10-filter-options{grid-template-columns:minmax(0,1fr)}.ck10-catalogue-filters>label{flex-basis:100%}}

/* RC3: compact continuous bookshelf; no individual card surfaces. */
.ck10-featured{box-sizing:border-box;display:grid;grid-template-columns:minmax(180px,.7fr) minmax(0,2fr);align-items:center;gap:32px;margin:30px 0;padding:24px 0;border-top:1px solid #d8e2ed;border-bottom:1px solid #d8e2ed;color:#102744}
.ck10-featured .ck10-feature-eyebrow{margin:0 0 7px;font-size:10px;line-height:1.4;font-weight:800;letter-spacing:.1em;color:#476480}.ck10-featured .ck10-feature-heading h2{margin:0;font-size:25px;line-height:1.18;font-weight:800;color:#102744}.ck10-featured .ck10-feature-browse{display:inline-flex;align-items:center;gap:8px;min-height:44px;color:#174e83;font-size:12px;font-weight:700;text-decoration:none}
.ck10-feature-shelf{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;min-width:0}.ck10-feature-shelf-single{grid-template-columns:minmax(0,1fr)}.ck10-feature-entry{display:grid;grid-template-columns:72px minmax(0,1fr);align-items:center;gap:18px;min-width:0;padding:0;background:transparent;border:0;border-radius:0;box-shadow:none}.ck10-feature-entry+.ck10-feature-entry{border-left:1px solid #d8e2ed;padding-left:28px}
.ck10-feature-cover{display:block;width:72px;max-width:100%;text-decoration:none}.ck10-feature-cover img{display:block;width:100%;height:auto;object-fit:contain;border-radius:2px;box-shadow:0 4px 10px #10274420}.ck10-feature-placeholder{display:grid;place-content:center;min-height:92px;border:1px solid #d8e2ed;background:#f1f5fa;color:#234565;text-align:center;font-size:11px}.ck10-feature-copy{min-width:0}.ck10-featured .ck10-feature-category{margin:0 0 5px;font-size:9px;line-height:1.4;font-weight:800;letter-spacing:.08em;color:#476480}.ck10-featured .ck10-feature-title{margin:0;font-size:17px;line-height:1.35;font-weight:800;overflow-wrap:anywhere}.ck10-featured .ck10-feature-title a{display:inline-flex;align-items:center;min-height:44px;color:#102744;text-decoration:none}.ck10-feature-title a span{padding-left:6px;white-space:nowrap}.ck10-featured .ck10-feature-secondary{display:inline-flex;align-items:center;gap:6px;min-height:44px;color:#315e87;font-size:12px;line-height:1.4;font-weight:600;text-decoration:none}.ck10-featured a:hover{text-decoration:underline;text-underline-offset:3px}.ck10-featured a:focus-visible{outline:3px solid #1764be;outline-offset:4px}
@media(max-width:1000px){.ck10-featured{grid-template-columns:minmax(150px,.65fr) minmax(0,2fr);gap:22px}.ck10-feature-shelf{gap:18px}.ck10-feature-entry{grid-template-columns:60px minmax(0,1fr);gap:14px}.ck10-feature-cover{width:60px}.ck10-feature-entry+.ck10-feature-entry{padding-left:18px}.ck10-featured .ck10-feature-title{font-size:16px}}
@media(max-width:760px){.ck10-featured{grid-template-columns:minmax(0,1fr);gap:18px;padding:20px 0;margin:24px 0}.ck10-feature-heading{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:0 16px}.ck10-featured .ck10-feature-eyebrow{grid-column:1/-1}.ck10-featured .ck10-feature-heading h2{font-size:23px}.ck10-feature-heading h2 br{display:none}.ck10-featured .ck10-feature-browse{font-size:12px}.ck10-feature-shelf{gap:18px}.ck10-feature-entry{grid-template-columns:56px minmax(0,1fr);gap:12px}.ck10-feature-cover{width:56px}}
@media(max-width:520px){.ck10-feature-heading{display:block}.ck10-featured .ck10-feature-heading h2{font-size:23px}.ck10-featured .ck10-feature-browse{min-height:36px}.ck10-feature-shelf{grid-template-columns:minmax(0,1fr);gap:14px}.ck10-feature-entry{grid-template-columns:52px minmax(0,1fr);gap:16px}.ck10-feature-cover{width:52px}.ck10-feature-entry+.ck10-feature-entry{border-left:0;border-top:1px solid #e0e7ef;padding:14px 0 0}.ck10-featured .ck10-feature-title{font-size:16px}.ck10-featured .ck10-feature-category{font-size:9px}}