:root{color-scheme:light;--ink:#12263b;--muted:#65778a;--navy:#11253b;--navy2:#183850;--teal:#126f78;--teal2:#0f5961;--gold:#c5a163;--cream:#f7f8fa;--line:#dee5eb;--paper:#fff;--radius:18px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--cream);font-family:Tahoma,Arial,sans-serif;line-height:1.95;color:var(--ink);font-size:16px}button,input{font:inherit}a{color:var(--teal2);text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--gold);outline-offset:3px}button{cursor:pointer}
header{background:var(--navy);color:#fff;border-bottom:4px solid var(--gold);position:sticky;top:0;z-index:10;box-shadow:0 4px 16px #101b2c18}.topbar{max-width:1200px;margin:auto;padding:14px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px}.logo{text-decoration:none!important;display:flex;align-items:center;color:#fff!important;gap:13px;font-weight:800}.brandmark{display:grid;place-items:center;width:43px;height:43px;min-width:43px;border:2px solid var(--gold);border-radius:50%;color:var(--gold);font-family:Georgia,serif;letter-spacing:-1px;font-size:19px}.brand-sub{display:block;color:#cfdae3;font-size:11px;line-height:1.6;font-weight:400}.topnav{display:flex;gap:16px;flex-wrap:wrap}.topnav a{font-weight:700;color:#e6edf4;font-size:13px}.topnav a:hover{color:#fff}
.page{max-width:1160px;margin:0 auto;padding:32px 22px 90px}.breadcrumbs{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:12px;flex-wrap:wrap;margin:0 0 16px}.breadcrumbs a{color:var(--muted)}.hero{background:linear-gradient(120deg,var(--navy),var(--navy2));border-radius:var(--radius);padding:40px;position:relative;overflow:hidden;color:#fff;box-shadow:0 17px 35px #11253b19}.hero:after{content:"";position:absolute;inset:auto auto -140px -70px;width:330px;height:330px;border:2px solid #c5a16333;border-radius:50%;pointer-events:none}.kicker{display:inline-block;color:#f1d9a7;font-size:13px;letter-spacing:.08em;font-weight:800}.hero h1{font-size:clamp(27px,4vw,48px);line-height:1.45;margin:10px 0 10px}.hero p{font-size:15px;max-width:730px;color:#dce6ec;margin:0 0 22px}.hero-tags{display:flex;gap:9px;flex-wrap:wrap}.hero-tag{border:1px solid #ffffff3a;border-radius:40px;padding:5px 13px;color:#fff;font-size:12px}.hero .hero-tag.light{background:#ffffff17}.disclaimer{border-right:4px solid var(--gold);background:#fff8e9;padding:13px 16px;color:#735b30;border-radius:10px;font-size:13px;margin-top:24px}.section-head{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:33px 0 15px;flex-wrap:wrap}.section-head h2{margin:0;color:var(--navy);font-size:24px}.muted{color:var(--muted)}.search-box{display:flex;align-items:center;border:1px solid #cbd9e0;background:#fff;border-radius:12px;padding:3px 12px;max-width:400px;width:100%}.search-box input{border:0;padding:12px 6px;outline:0!important;flex:1;min-width:0;background:transparent;font-size:15px}.chapters{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:14px}.lesson-card{position:relative;display:block;border:1px solid var(--line);background:#fff;border-radius:15px;padding:20px 22px;min-height:174px;transition:transform .15s,box-shadow .15s;color:var(--ink)!important;text-decoration:none!important}.lesson-card:hover{transform:translateY(-3px);box-shadow:0 12px 26px #17314a18}.lesson-card .num{display:inline-grid;place-items:center;border-radius:10px;background:#eaf5f5;color:var(--teal);width:39px;height:39px;line-height:1.1;font-size:17px;font-weight:800}.lesson-card strong{display:block;margin:11px 0 8px;font-size:16px;line-height:1.75}.lesson-card small{font-size:12px;color:var(--muted)}.lesson-card .arrow{position:absolute;left:18px;bottom:15px;color:var(--gold);font-weight:800}.progress-strip{display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:12px}.progress-meter{width:170px;height:8px;background:#e3e8ed;border-radius:20px;overflow:hidden}.progress-meter>span{background:var(--teal);height:100%;display:block;width:0;transition:width .2s}
.utilities{margin-top:30px;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:15px}.utility{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px}.utility strong{display:block;color:var(--navy);font-size:17px;margin-bottom:6px}.utility p{font-size:13px;color:var(--muted);line-height:1.9}.utility a{font-size:13px;font-weight:800}.btn{display:inline-flex;justify-content:center;align-items:center;gap:6px;padding:9px 15px;border-radius:10px;font-size:13px;font-weight:800;border:1px solid var(--teal);background:var(--teal);color:white!important;text-decoration:none!important;white-space:nowrap}.btn.alt{background:white;color:var(--teal)!important}.btn.light{border-color:#ffffff77;color:white!important;background:transparent}.btn:hover{filter:brightness(.93)}
.lesson-grid{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:24px;align-items:start}.article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px 39px;min-width:0;box-shadow:0 3px 17px #122b4410}.article h1{font-size:clamp(24px,3vw,34px);line-height:1.6;margin:0 0 14px}.article h2{font-size:21px;color:var(--navy);line-height:1.7;padding-top:18px;margin:26px 0 10px;border-top:1px solid #e7edf1;scroll-margin-top:100px}.article h3{font-size:17px;color:var(--teal);margin:21px 0 7px;scroll-margin-top:100px}.article p{margin:11px 0;line-height:2.15}.article .mini-meta{font-size:12px;color:var(--muted);margin:5px 0}.article .note{border-right:4px solid var(--gold);border-radius:9px;background:#fff8ec;padding:13px 17px;font-size:13px;color:#684f23}.article .bullet-line{display:flex;gap:10px;line-height:2.05;margin:5px 0}.article .bullet{color:var(--teal);font-weight:900}.article .table-scroller{overflow:auto;max-width:100%;border:1px solid var(--line);border-radius:12px;margin:20px 0;scrollbar-color:#9cbbbd transparent}.article table{border-collapse:collapse;width:100%;min-width:480px;font-size:13.5px;line-height:1.9}.article th{background:var(--navy);color:white;text-align:right;padding:11px 13px;border:1px solid #28455e}.article td{border:1px solid var(--line);padding:10px 12px;vertical-align:top}.article tr:nth-child(even) td{background:#f8fafc}.article .answer-line{border-bottom:1px dashed #b4c4d1;height:26px}.lesson-figure{margin:25px 0;border:1px solid var(--line);border-radius:12px;padding:18px;text-align:center}.lesson-figure img{max-width:100%;height:auto;object-fit:contain}.lesson-figure figcaption{font-size:11px;color:var(--muted)}.sidebar{position:sticky;top:97px;background:white;border:1px solid var(--line);border-radius:15px;padding:17px}.sidebar h3{margin:0 0 12px;font-size:15px}.sidebar a{display:block;padding:7px 8px;border-radius:8px;color:var(--ink);font-size:12px;line-height:1.75}.sidebar a.current,.sidebar a:hover{background:#ecf5f5;color:var(--teal);font-weight:700}.sidebar small{display:block;margin-top:7px;color:var(--muted)}.actionbar{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;margin:20px 0}.prevnext{display:flex;gap:10px;justify-content:space-between;margin:26px 0;flex-wrap:wrap}.prevnext a{border:1px solid var(--line);padding:10px 15px;border-radius:10px;background:#fff;font-weight:700;font-size:13px}.page-sub{font-size:13px;color:var(--muted);margin:2px 0 18px}.assess-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(275px,1fr));gap:14px}.assess-card{background:white;border:1px solid var(--line);padding:22px;border-radius:14px}.assess-card h2{font-size:17px;color:var(--navy);margin:0}.assess-card p{font-size:13px;color:var(--muted);margin:3px 0 16px}
footer{background:#0f2337;color:#cbd7e1;padding:25px 20px;text-align:center;font-size:12px}footer a{color:#ecd1a0}footer p{margin:0}.hide{display:none!important}.mobile-sectionlinks{display:none}
@media(max-width:800px){.topbar{padding:12px 15px}.topnav{gap:12px}.page{padding:20px 13px 70px}.hero{padding:28px 22px}.lesson-grid{display:block}.sidebar{display:none}.article{padding:22px 18px}.article h2{font-size:19px}.article .table-scroller{margin:16px -7px}.article table{min-width:430px}.mobile-sectionlinks{display:flex;gap:8px;flex-wrap:wrap;padding:12px 0}.mobile-sectionlinks a{font-size:12px;border:1px solid var(--line);padding:5px 8px;background:#fff;border-radius:8px}}
@media print{header,footer,.sidebar,.actionbar,.prevnext,.breadcrumbs,.mobile-sectionlinks,.no-print{display:none!important}body{background:white}.page{max-width:none;padding:0}.lesson-grid{display:block}.article{border:0;box-shadow:none;padding:0}.article h2{break-after:avoid}.article .table-scroller{overflow:visible}.article table{min-width:0;font-size:11px}.article tr,.lesson-figure{break-inside:avoid}.article{font-size:13px}.disclaimer{font-size:11px}}