.learning-catalog-page{margin:0;background:#fff;color:#18334e;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:16px;line-height:1.6}
.learning-catalog-page *{box-sizing:border-box}.learning-catalog-page [hidden]{display:none}
.catalog-main{max-width:1120px;margin:auto;padding:42px 24px 60px}.catalog-intro{max-width:760px;margin-bottom:30px}
.catalog-eyebrow{color:#a62635;font-size:12px;font-weight:750;letter-spacing:.08em}.catalog-intro h1{margin:8px 0 14px;color:#173c61;font-size:clamp(34px,5vw,54px);line-height:1.08}.catalog-intro>p:last-of-type{margin:0;max-width:720px}
.catalog-subject-nav{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.catalog-subject-nav a,.catalog-search button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:8px 16px;border:1px solid #8ba7c0;border-radius:8px;color:#164a78;background:#fff;font:inherit;font-weight:650;text-decoration:none}
.catalog-subject-nav a:hover,.catalog-search button:hover{background:#edf3f8}.catalog-main a{color:#164a78;text-underline-offset:3px}.catalog-main a:focus-visible,.catalog-main summary:focus-visible,.catalog-search :focus-visible{outline:3px solid #aa293b;outline-offset:3px}
.catalog-search{padding:20px;border:1px solid #c4d2df;border-left:4px solid #a62635;border-radius:10px;margin:24px 0 38px;background:#f4f8fb}.catalog-search label{display:block;font-weight:700;margin-bottom:8px}.catalog-search>div{display:flex;gap:10px}.catalog-search input{min-width:0;flex:1;min-height:48px;padding:10px 12px;border:1px solid #7897b0;border-radius:6px;background:#fff;color:#18334e;font:inherit}.catalog-search button{cursor:pointer}.catalog-search p{margin:8px 0 0;font-size:14px}
.catalog-subject{margin:32px 0 44px;scroll-margin-top:100px}.catalog-section-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px;margin-bottom:12px}.catalog-section-head h2,.catalog-subject>h2{margin:0;color:#173c61;font-size:27px}.catalog-section-head>a{display:inline-flex;align-items:center;min-height:44px;font-size:14px;font-weight:600}
.catalog-level{margin:10px 0;border:1px solid #bfcedb;border-radius:9px;overflow:clip}.catalog-level>summary{padding:16px 18px;min-height:52px;color:#173c61;background:#f4f8fb;font-weight:700;cursor:pointer}.catalog-level>summary>span{display:inline-block;margin-left:10px;color:#526a7e;font-size:13px;font-weight:500}.catalog-level[open]>summary{border-bottom:1px solid #d7e0e8}
.catalog-units,.catalog-pages{list-style:none;margin:0;padding:0 18px}.catalog-unit,.catalog-entry{padding:14px 0;border-bottom:1px solid #e0e7ed;break-inside:avoid}.catalog-unit:last-child,.catalog-entry:last-child{border-bottom:0}.catalog-unit-title>a{display:inline-block;min-height:28px;font-weight:650}.catalog-lessons{margin-top:5px}.catalog-lessons>summary{min-height:44px;padding:8px 0;color:#365f80;font-size:14px;cursor:pointer}.catalog-lessons ol{margin:0 0 6px;padding-left:28px}.catalog-lessons .catalog-entry{padding:9px 0 9px 5px;font-size:15px}.catalog-kind{display:block;color:#62768a;font-size:12px}.catalog-lessons .catalog-kind{display:none}.catalog-entry>a{overflow-wrap:anywhere}.catalog-footer{display:flex;flex-wrap:wrap;gap:22px;padding-top:24px;margin-top:38px;border-top:1px solid #c4d2df}.catalog-footer a{display:inline-flex;min-height:44px;align-items:center;font-size:14px}.catalog-empty{padding:20px;border-left:4px solid #a62635;background:#f4f8fb}
@media(max-width:600px){.catalog-main{padding:26px 16px 40px}.catalog-intro h1{font-size:36px}.catalog-search{padding:16px}.catalog-search>div{flex-wrap:wrap}.catalog-search input{flex-basis:100%}.catalog-level>summary{padding:14px}.catalog-level>summary>span{display:block;margin:2px 0 0 20px}.catalog-units,.catalog-pages{padding:0 14px}.catalog-section-head h2{font-size:25px}.catalog-lessons ol{padding-left:22px}}
@media print{.catalog-search,.catalog-subject-nav,.catalog-footer{display:none}.catalog-main{max-width:none;padding:0}.catalog-level,.catalog-unit{overflow:visible}.catalog-level>summary{background:#fff}}