.knowledge-check-section{border-top:1px solid #e5ebf2}.knowledge-check{max-width:980px}.knowledge-check-head{display:flex;justify-content:space-between;gap:32px;align-items:end;margin-bottom:28px}.knowledge-check-head h2{margin:7px 0 8px}.knowledge-check-head p{max-width:690px;margin:0;color:#667085}.quiz-score{min-width:130px;padding:18px 20px;border:1px solid #dce5ef;border-radius:18px;background:#fff;text-align:center;box-shadow:0 10px 30px rgba(31,43,68,.05)}.quiz-score span,.quiz-score small{display:block;color:#738095}.quiz-score span{font-size:11px;text-transform:uppercase;letter-spacing:.1em;font-weight:850}.quiz-score strong{display:block;margin:4px 0;font-size:24px;color:#1e3550}.quiz-score small{font-size:12px}.quiz-list{display:grid;gap:18px}.quiz-card{background:#fff;border:1px solid #dfe6ef;border-radius:22px;padding:26px;box-shadow:0 10px 30px rgba(31,43,68,.04)}.quiz-question-head{display:grid;grid-template-columns:42px 1fr;gap:14px;align-items:start}.quiz-question-head>span{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:#edf4fb;color:#365f8d;font-size:11px;font-weight:900}.quiz-question-head h3{margin:4px 0 18px;font-size:20px;line-height:1.35;color:#21364f}.quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.quiz-option{display:flex;align-items:center;gap:12px;text-align:left;padding:14px 15px;border:1px solid #dfe6ef;border-radius:14px;background:#fbfcfe;color:#2d3f55;font:inherit;cursor:pointer;transition:.15s ease}.quiz-option:hover:not(:disabled){border-color:#a8bdd4;background:#f4f8fc;transform:translateY(-1px)}.quiz-option>span{display:grid;place-items:center;flex:0 0 auto;width:28px;height:28px;border-radius:9px;background:#eaf1f8;color:#466989;font-size:11px;font-weight:900}.quiz-option strong{font-size:14px;line-height:1.35}.quiz-option:disabled{cursor:default}.quiz-option.is-correct{border-color:#8bc5a2;background:#eff9f2}.quiz-option.is-correct>span{background:#dcefe3;color:#24623a}.quiz-option.is-incorrect{border-color:#e6aaa2;background:#fff3f1}.quiz-option.is-incorrect>span{background:#f9ded9;color:#963f34}.quiz-feedback{margin-top:16px;padding:16px 18px;border-radius:14px;background:#fff4f2;border-left:4px solid #c66b5e}.quiz-feedback.is-correct{background:#f1f8f3;border-left-color:#4f9668}.quiz-feedback strong{display:block;margin-bottom:4px;color:#263a51}.quiz-feedback p{margin:0 0 7px;color:#5f6e80;font-size:14px;line-height:1.55}.quiz-feedback a{font-size:13px;font-weight:800;color:#365f8d}.quiz-complete{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:24px;padding:26px 28px;border-radius:22px;background:linear-gradient(135deg,#eaf3ff,#f8fbff);border:1px solid #d9e7f5}.quiz-complete>div>strong{display:block;font-size:23px;margin:6px 0;color:#213a56}.quiz-complete p{margin:0;color:#667085}.quiz-complete[hidden]{display:none}@media(max-width:760px){.knowledge-check-head{align-items:start;flex-direction:column}.quiz-score{min-width:0;width:100%;text-align:left}.quiz-options{grid-template-columns:1fr}.quiz-complete{align-items:stretch;flex-direction:column}.quiz-card{padding:21px 18px}.quiz-question-head{grid-template-columns:36px 1fr}.quiz-question-head>span{width:34px;height:34px}}

/* Course-detail experience: restrained technical hierarchy without extra hydration. */
.page-hero:has(.course-meta){position:relative;overflow:hidden;padding:66px 0 54px;background:linear-gradient(180deg,#f8fbff 0%,#f2f6fb 100%);border-bottom:1px solid #e1e8f0}.page-hero:has(.course-meta):before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(73,103,139,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(73,103,139,.045) 1px,transparent 1px);background-size:32px 32px;mask-image:linear-gradient(to right,black,transparent 74%)}.page-hero:has(.course-meta) .shell{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 300px;column-gap:54px;align-items:start}.page-hero:has(.course-meta) .breadcrumbs{grid-column:1/-1;margin-bottom:26px}.page-hero:has(.course-meta) .eyebrow,.page-hero:has(.course-meta) h1,.page-hero:has(.course-meta)>.shell>p:not(:last-child),.page-hero:has(.course-meta) .course-meta{grid-column:1}.page-hero:has(.course-meta) h1{max-width:850px;margin-top:10px}.page-hero:has(.course-meta)>.shell>p:not(:last-child){max-width:760px;margin-top:0}.page-hero:has(.course-meta) .course-meta{margin-top:12px}.page-hero:has(.course-meta) .course-meta .pill{background:#fff;border:1px solid #dce5ef;color:#466481;padding:7px 10px}.page-hero:has(.course-meta)>.shell>p:last-child{grid-column:2;grid-row:2/7;align-self:center;margin:0;padding:24px;border:1px solid #dce5ef;border-radius:22px;background:rgba(255,255,255,.88);box-shadow:0 18px 48px rgba(31,53,80,.08);backdrop-filter:blur(10px)}.page-hero:has(.course-meta)>.shell>p:last-child:before{content:"Begin the course";display:block;margin-bottom:12px;color:#66778a;font-size:11px;font-weight:850;letter-spacing:.11em;text-transform:uppercase}.page-hero:has(.course-meta)>.shell>p:last-child .button{width:100%;min-height:48px;box-shadow:none}.page-hero:has(.course-meta)+.section{padding-top:60px;padding-bottom:64px}.page-hero:has(.course-meta)+.section .section-head{margin-bottom:22px}.page-hero:has(.course-meta)+.section .related-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.page-hero:has(.course-meta)+.section .related-card{min-height:245px;padding:24px;border-radius:22px;border-color:#dfe6ef;box-shadow:0 10px 34px rgba(31,43,68,.04)}.page-hero:has(.course-meta)+.section .related-card strong{font-size:18px;letter-spacing:-.015em}.page-hero:has(.course-meta)+.section .related-card ul{margin:10px 0 0;padding-left:19px;color:#5f6f82}.page-hero:has(.course-meta)+.section .related-card li+li{margin-top:8px}.section:has(.course-layout){padding-top:66px;padding-bottom:72px;background:#fff}.course-layout{grid-template-columns:minmax(0,1fr) 300px;gap:46px}.course-layout>.sidebar{position:sticky;top:102px;border:1px solid #dfe7f0;border-radius:24px;padding:24px;background:linear-gradient(180deg,#f8fbff,#f3f7fb);box-shadow:0 14px 38px rgba(31,43,68,.06)}.course-layout>.sidebar:before{content:"Course compass";display:block;margin-bottom:12px;color:#52739c;font-size:11px;font-weight:900;letter-spacing:.11em;text-transform:uppercase}.course-layout>.sidebar h3{font-size:22px;line-height:1.2;letter-spacing:-.025em;margin-bottom:15px}.course-layout>.sidebar ul{margin:0 0 20px;padding-left:19px}.course-layout>.sidebar li+li{margin-top:8px}.course-layout>.sidebar p{padding-top:14px;border-top:1px solid #dfe6ef;color:#5f6f82}.course-layout .content-list{gap:12px}.course-layout a.content-row{position:relative;align-items:center;min-height:116px;padding:22px 22px 22px 24px;border-color:#dfe6ef;border-radius:18px;box-shadow:0 8px 26px rgba(31,43,68,.035);transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease}.course-layout a.content-row:before{content:"";position:absolute;left:-1px;top:18px;bottom:18px;width:3px;border-radius:4px;background:#8eabc9;opacity:.65}.course-layout a.content-row:hover{transform:translateY(-2px);border-color:#bfcddd;box-shadow:0 14px 34px rgba(31,43,68,.08)}.course-layout a.content-row:focus-visible{outline:3px solid rgba(62,111,160,.28);outline-offset:3px}.course-layout a.content-row .content-type{display:block;margin-bottom:6px}.course-layout a.content-row strong{font-size:18px;letter-spacing:-.015em}.course-layout a.content-row>span.pill{align-self:flex-start;white-space:nowrap;background:#edf4fb;border:1px solid #dce7f3}.section-muted:has([data-learning-relationship]){background:linear-gradient(180deg,#f4f7fb,#f7f9fc)}.section-muted:has([data-learning-relationship]) .related-grid{gap:16px}.section-muted:has([data-learning-relationship]) .related-card{min-height:230px;border-radius:22px;border-color:#dce5ef;box-shadow:0 10px 30px rgba(31,43,68,.04)}.section-muted:has([data-learning-relationship]) .related-card:focus-visible{outline:3px solid rgba(62,111,160,.26);outline-offset:3px}.section:has(details.content-row){padding-top:72px;padding-bottom:78px;background:linear-gradient(180deg,#fff 0%,#f8fafc 100%)}.section:has(details.content-row)>.shell{max-width:1040px}.section:has(details.content-row) .section-head{margin-bottom:26px}.section:has(details.content-row) .section-head h2{max-width:780px}.section:has(details.content-row) .content-list{gap:14px}.section:has(details.content-row) details.content-row{display:block;padding:0;overflow:hidden;border-radius:20px;border-color:#dce5ef;box-shadow:0 10px 32px rgba(31,43,68,.045);background:#fff}.section:has(details.content-row) details.content-row summary{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:22px 24px;cursor:pointer;list-style:none}.section:has(details.content-row) details.content-row summary::-webkit-details-marker{display:none}.section:has(details.content-row) details.content-row summary>div{min-width:0}.section:has(details.content-row) details.content-row summary strong{font-size:18px;line-height:1.35;letter-spacing:-.012em}.section:has(details.content-row) details.content-row summary p{margin-top:7px}.section:has(details.content-row) details.content-row summary>.pill{flex:0 0 auto;background:#edf4fb;border:1px solid #d8e4ef;color:#365f8d}.section:has(details.content-row) details.content-row[open]{border-color:#b9cada;box-shadow:0 16px 40px rgba(31,43,68,.075)}.section:has(details.content-row) details.content-row[open] summary{border-bottom:1px solid #e1e7ef;background:#f8fbff}.section:has(details.content-row) details.content-row>div{padding:22px 24px 24px;border-left:4px solid #6f94ba;background:#fff}.section:has(details.content-row) details.content-row>div p{margin:0 0 16px;color:#4d5d70}.section:has(details.content-row) details.content-row>div p:last-of-type{margin-bottom:12px}.section:has(details.content-row) details.content-row>div a{font-weight:800;color:#365f8d}.section:has(details.content-row) details.content-row summary:focus-visible{outline:3px solid rgba(62,111,160,.28);outline-offset:-3px}.knowledge-check-section{background:linear-gradient(180deg,#f3f6fa 0%,#eef3f8 100%);padding-top:74px;padding-bottom:82px}.knowledge-check{max-width:1050px}.knowledge-check-head{align-items:center}.quiz-score{border-color:#cfdae7;border-radius:20px;box-shadow:0 12px 34px rgba(31,43,68,.065)}.quiz-card{border-color:#d8e2ec;border-radius:24px;box-shadow:0 12px 34px rgba(31,43,68,.045)}.quiz-option:focus-visible{outline:3px solid rgba(62,111,160,.28);outline-offset:2px}.quiz-complete{border-radius:24px}.quiz-complete .button:focus-visible{outline:3px solid rgba(62,111,160,.28);outline-offset:3px}
@media(max-width:900px){.page-hero:has(.course-meta) .shell{grid-template-columns:1fr;column-gap:0}.page-hero:has(.course-meta) .breadcrumbs,.page-hero:has(.course-meta) .eyebrow,.page-hero:has(.course-meta) h1,.page-hero:has(.course-meta)>.shell>p:not(:last-child),.page-hero:has(.course-meta) .course-meta,.page-hero:has(.course-meta)>.shell>p:last-child{grid-column:1}.page-hero:has(.course-meta)>.shell>p:last-child{grid-row:auto;margin-top:22px;max-width:520px}.page-hero:has(.course-meta)+.section .related-grid{grid-template-columns:1fr 1fr}.course-layout{grid-template-columns:1fr;gap:28px}.course-layout>.sidebar{position:static;display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:18px;align-items:start}.course-layout>.sidebar:before,.course-layout>.sidebar h3,.course-layout>.sidebar ul{grid-column:1/-1}.course-layout>.sidebar p{margin:0}.section:has(details.content-row)>.shell{max-width:none}}
@media(max-width:640px){.page-hero:has(.course-meta){padding:50px 0 42px}.page-hero:has(.course-meta) h1{font-size:clamp(38px,12vw,52px)}.page-hero:has(.course-meta)>.shell>p:last-child{max-width:none;width:100%}.page-hero:has(.course-meta)+.section .related-grid{grid-template-columns:1fr}.page-hero:has(.course-meta)+.section .related-card{min-height:0}.course-layout a.content-row{flex-direction:column;align-items:flex-start;min-height:0;padding:20px}.course-layout a.content-row>span.pill{align-self:flex-start}.course-layout>.sidebar{display:block;padding:21px}.course-layout>.sidebar p{margin-top:14px}.section:has(details.content-row) details.content-row summary{padding:20px;flex-direction:column}.section:has(details.content-row) details.content-row summary>.pill{align-self:flex-start}.section:has(details.content-row) details.content-row>div{padding:20px 18px}.knowledge-check-section{padding-top:60px;padding-bottom:66px}.quiz-card{border-radius:20px}}
@media(prefers-reduced-motion:reduce){.course-layout a.content-row,.section-muted:has([data-learning-relationship]) .related-card,.quiz-option{transition:none}.course-layout a.content-row:hover,.section-muted:has([data-learning-relationship]) .related-card:hover,.quiz-option:hover:not(:disabled){transform:none}}