.library-topbar .brand{text-decoration:none;color:var(--ink)}
.course-library{width:min(1160px,calc(100% - 64px));margin:0 auto;padding:24px 0 48px}
.library-navigation{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:28px;font-size:13px}
.library-navigation a{color:#68768b;text-decoration:none;font-weight:500}
.library-navigation>div{display:flex;align-items:center;gap:24px}
.library-navigation [aria-current=page]{color:#315cbb;position:relative}
.library-navigation [aria-current=page]::after{content:'';position:absolute;height:2px;background:#315cbb;inset-inline:0;bottom:-9px;border-radius:2px}
.library-hero{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:34px 0 38px;border-bottom:1px solid #e0e6ee}
.library-eyebrow{color:#5673a1;letter-spacing:.14em;font-size:10px;font-weight:650}
.library-hero h1{font-size:clamp(26px,3vw,37px);line-height:1.3;letter-spacing:-.04em;margin:15px 0 16px;font-weight:650}
.library-hero p{margin:0;font-size:15px;line-height:1.9;color:#718096}
.library-stat{display:flex;flex-direction:column;align-items:flex-end;gap:6px;min-width:130px;color:#68768b}
.library-stat strong{font-size:58px;font-weight:500;color:#315cbb;line-height:1.1;letter-spacing:-.07em}
.library-stat span{font-size:13px}.library-stat small{font-size:11px;color:#8a97a8}
.library-tools{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:28px 0}
.public-course-filters{display:flex;gap:6px;flex-wrap:wrap}
.public-course-filters button{display:flex;align-items:center;gap:8px;padding:9px 15px;border:1px solid transparent;border-radius:9px;background:transparent;color:#68758b;font-size:13px;font-weight:500;transition:background .15s}
.public-course-filters button small{font-size:11px;color:inherit;opacity:.7}
.public-course-filters button:hover{background:#edf1f7}.public-course-filters [aria-pressed=true]{background:#e8eef9;color:#315cbb;border-color:#d8e3f5}
.library-search{display:flex;align-items:center;gap:8px;max-width:270px;border:1px solid #e0e6ee;background:#fff;border-radius:10px;padding:9px 12px}
.library-search>span{font-size:20px;line-height:1;color:#7e8a9f}.library-search input{width:100%;min-width:0;border:0;background:transparent;outline:none;color:var(--ink);font-size:13px;padding:0}
.library-search:focus-within{border-color:#7f9bd6;box-shadow:0 0 0 3px #315cbb0d}
.library-list-heading{display:flex;align-items:center;justify-content:space-between;margin:30px 0 16px}.library-list-heading h2{font-size:16px;font-weight:600;margin:0}.library-list-heading>span{font-size:12px;color:#8994a6}
.public-course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.public-course-card{--topic:#668560;--topic-bg:#f0f5ee;display:flex;flex-direction:column;gap:0;background:#fff;border:1px solid #e1e7ef;border-radius:16px;overflow:hidden;color:var(--ink);text-decoration:none;box-shadow:0 2px 5px #243b5704;transition:transform .18s,border-color .18s,box-shadow .18s}
.public-course-card[data-category=technology]{--topic:#5370a8;--topic-bg:#edf2fb}.public-course-card[data-category=culture]{--topic:#a17650;--topic-bg:#faf2e9}.public-course-card[data-category=nature]{--topic:#548985;--topic-bg:#edf5f4}
.library-card-top{display:flex;justify-content:space-between;align-items:center;padding:18px 20px 0}.library-category{font-size:11px;letter-spacing:.02em;color:var(--topic,#5673a1);background:var(--topic-bg,#edf2fb);border-radius:5px;padding:5px 9px;font-weight:500}
.library-card-number{font-size:11px;color:#b3bdcb;letter-spacing:.07em;font-variant-numeric:tabular-nums}
.library-card-body{padding:19px 20px 20px;flex:1}.library-card-body h3{font-size:17px;font-weight:600;line-height:1.5;margin:0 0 6px}
.library-card-english{color:#8a96a8;line-height:1.6;font-size:11px;margin:0 0 15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:35px}
.library-card-summary{font-size:13px;color:#6e7c91;line-height:1.85;margin:0;min-height:72px}
.library-card-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:11px;color:#8794a8;margin-top:20px}.library-card-meta span+span::before{content:'·';margin-right:8px;color:#c2cbd7}
.library-card-footer{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #edf1f6;margin:0 20px;padding:13px 0;font-size:10px;color:#98a3b4}.library-card-footer>span:last-child{font-size:12px;color:#5375ae}
.public-course-card:hover{transform:translateY(-3px);border-color:#a4b8d9;box-shadow:0 8px 22px #243b570b}
.course-library :is(a,button):focus-visible{outline:2px solid #315cbb;outline-offset:4px}
#publicCourseMessage{color:#a45945;font-size:13px;line-height:1.7}#publicCourseMessage:empty{display:none}.library-retry,.library-empty button{font-size:13px;padding:9px 15px;border:1px solid #d9e2f0;border-radius:8px;background:white;color:#315cbb}
.library-empty{padding:70px 20px;text-align:center;color:#8592a5}.library-empty h3{color:#52647e;font-size:17px;font-weight:550}.library-empty p{font-size:13px;margin-bottom:25px}
.public-course-detail{width:min(810px,100%);margin:8px auto 0}.library-back{border:0;padding:8px 0;background:transparent;font-size:13px;color:#6e7c91}
.library-detail-heading{margin:28px 0 36px}.library-detail-heading h1{font-size:clamp(25px,3vw,35px);font-weight:650;line-height:1.4;letter-spacing:-.03em;margin:18px 0 8px}
.library-english-title{font-size:15px;line-height:1.6;color:#8290a6;margin:0 0 20px}.library-detail-summary{font-size:15px;color:#64768d;line-height:1.9;margin:0 0 20px}.library-detail-meta{color:#94a0b2;line-height:1.8;font-size:12px}
.library-preview-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid #e1e7ef;padding-top:26px;margin-bottom:18px}.library-preview-heading h2{font-size:16px;margin:0 0 7px;font-weight:600}.library-preview-heading p{font-size:12px;color:#8a98aa;margin:0}.library-preview-heading label{font-size:11px;color:#8a98aa}.library-preview-heading select{display:block;margin-top:6px;padding:8px 10px;border:1px solid #dee5ee;border-radius:8px;background:#fff;color:#52647e;font-size:12px;max-width:180px}
.public-course-preview{white-space:pre-wrap;background:#fff;border:1px solid #e1e7ef;border-radius:14px;padding:32px 36px;font-size:17px;line-height:1.95;color:#334760;margin-bottom:22px;overflow-wrap:break-word}
.public-course-footer{display:flex;align-items:center;justify-content:space-between;gap:18px}.public-course-footer>a{font-size:12px;color:#8b9ab0;text-decoration:none}.public-course-footer>a:hover{color:#315cbb}.public-course-footer .primary-button{font-size:13px;background:#315cbb}
.library-footnote{margin:48px 0 0;text-align:center;color:#a0acbc;font-size:11px}
@media(max-width:1000px){.public-course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.library-tools{align-items:flex-start;flex-direction:column;gap:18px}.library-search{max-width:100%;width:100%}}
@media(max-width:600px){.course-library{width:calc(100% - 36px);padding-top:22px}.library-navigation{font-size:12px;margin-bottom:12px}.library-navigation>div{gap:18px}.library-hero{padding:25px 0 27px;gap:12px}.library-hero h1{font-size:26px}.library-hero p{font-size:13px;line-height:1.85}.library-stat{display:none}.library-wide-break{display:none}.library-eyebrow{font-size:9px}.library-tools{margin:22px 0;gap:17px}.public-course-filters{gap:2px;width:100%}.public-course-filters button{padding:8px 10px;font-size:12px;gap:5px}.public-course-grid{grid-template-columns:minmax(0,1fr);gap:14px}.library-card-body{padding-top:16px}.library-card-summary{min-height:0}.library-card-english{min-height:0}.library-card-meta{margin-top:16px}.library-preview-heading{align-items:flex-start;gap:10px}.library-preview-heading select{max-width:125px}.public-course-preview{padding:22px;font-size:16px}.public-course-footer{flex-wrap:wrap}.public-course-footer .primary-button{width:100%;order:-1}.library-detail-heading{margin-top:24px}.library-topbar{padding-inline:18px}}