:root{
  --navy:#0b2538;--navy2:#103449;--ink:#192d3d;--muted:#778896;
  --teal:#087b80;--mint:#e5f5ef;--orange:#e7733e;--line:#e8eef0;
  --paper:#f5f8f8;--white:#fff;--shadow:0 16px 42px rgba(28,58,78,.07);
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--paper);font-size:14px}
button,input,select{font:inherit}button{cursor:pointer}
button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #3bbdb4;outline-offset:2px}
a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}
.shell{display:flex;min-height:100vh}
.sidebar{width:257px;background:var(--navy);color:#c2d4de;position:fixed;left:0;top:0;bottom:0;display:flex;flex-direction:column;z-index:30}
.brand{height:94px;flex:none;display:flex;align-items:center;padding:0 23px;gap:12px;border-bottom:1px solid #244254}
.brand-mark{width:44px;height:44px;flex:none;display:grid;place-items:center;position:relative;border:1px solid #7dccce;border-radius:10px;transform:rotate(-7deg)}
.brand-mark span{font-size:25px;font-weight:900;color:#f9fcfc;transform:rotate(7deg);letter-spacing:-4px;padding-right:4px}
.brand-mark i{position:absolute;width:8px;height:8px;background:var(--orange);border-radius:2px;bottom:-3px;right:-3px}
.brand strong{color:white;font-weight:900;letter-spacing:2.1px;font-size:17px;display:block}
.brand small{display:block;color:#7fb1bf;letter-spacing:1.6px;font-size:8.5px;margin-top:5px;font-weight:800}
.sidebar-scroll{overflow:auto;padding:24px 13px;flex:1;scrollbar-width:thin}
.side-section-label{color:#6e98a7;font-weight:800;font-size:10px;letter-spacing:1.35px;margin:3px 13px 11px}
.nav-main{display:grid;gap:3px}
.nav-link,.semester-link{border:0;background:transparent;color:#c2d4de;text-align:left;width:100%;display:flex;align-items:center;gap:11px;border-radius:8px}
.nav-link{padding:11px 14px;font-weight:650;font-size:13px}
.nav-link:hover,.semester-link:hover{background:#17374b;color:white}
.nav-link.active{color:white;background:#1b4557;box-shadow:inset 3px 0 #ef8b51}
.nav-symbol{font-size:20px;font-weight:400;width:20px;text-align:center;color:#94b4c2}
.semester-label{margin-top:32px;display:flex;justify-content:space-between}
.semester-label span{color:#528297}
.side-semesters{display:grid;gap:2px}
.semester-link{padding:9px 13px;font-size:12px;font-weight:600}
.semester-link .sem-num{border:1px solid #41667a;color:#8fb6c6;border-radius:5px;width:24px;height:24px;display:grid;place-items:center;font-size:11px}
.semester-link .sem-count{margin-left:auto;font-size:10px;color:#5f92a7}
.semester-link.selected{background:#163e50;color:#fff}
.semester-link.selected .sem-num{background:#e7733e;border-color:#e7733e;color:#fff}
.side-note{margin:30px 7px 5px;padding:18px 16px;border:1px solid #315469;border-radius:12px;background:linear-gradient(135deg,#183c50,#102c41)}
.side-note-icon{font-size:21px;color:#f6ad76;margin-bottom:9px}
.side-note strong{display:block;color:#fff;font-size:12px}.side-note p{font-size:11px;line-height:1.6;color:#9fb9c6;margin:6px 0 0}
.sidebar-footer{font-size:10px;padding:18px 23px;border-top:1px solid #244254;color:#84a7b5;line-height:1.5}
.sidebar-footer span{color:#e7733e}.sidebar-footer small{display:block;margin-top:5px;font-size:10px;color:#5b8494}
.app-column{margin-left:257px;min-width:0;flex:1}
.topbar{height:74px;display:flex;align-items:center;gap:22px;padding:0 42px;background:white;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.topbar-crumb{font-size:12px;font-weight:700;color:#5f7582;white-space:nowrap}
.topbar-crumb span{margin:0 8px;color:#b4c4ca}
.search-wrap{margin-left:auto;width:min(360px,40vw);height:40px;border:1px solid #e6ecee;background:#f7f9f9;border-radius:8px;display:flex;align-items:center;padding:0 11px;gap:8px}
.search-wrap:focus-within{border-color:#4ca8a6;background:#fff}
.search-wrap input{border:0;outline:0;background:transparent;min-width:0;width:100%;font-size:12px;color:var(--ink)}
.search-wrap input:focus-visible{outline:none}
.search-icon{font-size:23px;color:#899ca5;line-height:1}.search-wrap kbd{font-family:inherit;color:#b7c1c5;border:1px solid #e0e6e8;font-size:11px;padding:1px 5px;border-radius:4px}
.topbar-avatar{background:#e5f1f1;border:2px solid white;box-shadow:0 0 0 1px #d9e8e6;border-radius:50%;height:37px;width:37px;display:grid;place-items:center;font-size:11px;font-weight:900;color:#0c7478}
.menu-button,.side-close{display:none}
main{padding:36px 42px 70px;max-width:1720px;margin:auto}
.eyebrow{font-size:10px;letter-spacing:1.8px;color:#168e89;font-weight:900;text-transform:uppercase;margin:0 0 10px}
h1,h2,h3,p{margin-top:0}h1{font-size:clamp(26px,3vw,38px);letter-spacing:-1.2px;font-weight:850;line-height:1.18;margin-bottom:13px}
h2{font-size:20px;letter-spacing:-.45px}h3{font-size:15px;letter-spacing:-.2px}
.lead{font-size:14px;line-height:1.7;color:#637985;max-width:720px}
.hero{min-height:265px;background:radial-gradient(circle at 84% 10%,#1e6671 0,transparent 35%),linear-gradient(115deg,#0b3044,#0e4655 72%,#176b6e);color:#fff;border-radius:18px;display:flex;align-items:center;overflow:hidden;position:relative;padding:35px 45px;box-shadow:var(--shadow)}
.hero-copy{position:relative;z-index:2;max-width:560px}.hero .eyebrow{color:#a0d3d1}.hero h1{font-size:clamp(26px,3.2vw,40px);letter-spacing:-1.3px;margin-bottom:11px}
.hero p{font-size:13px;color:#bbd6dc;line-height:1.6;max-width:490px;margin-bottom:20px}
.hero-actions{display:flex;gap:11px;flex-wrap:wrap}
.btn{border:0;border-radius:9px;padding:11px 17px;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-size:12px;font-weight:800;text-decoration:none;transition:transform .16s,background .16s}
.btn:hover{transform:translateY(-1px);text-decoration:none}.btn-primary{background:#e97840;color:white}.btn-primary:hover{background:#d7662f}
.btn-ghost{background:#ffffff20;color:#fff;border:1px solid #ffffff35}.btn-ghost:hover{background:#ffffff2d}
.btn-outline{background:#fff;border:1px solid #cbdedc;color:#087b80}.btn-outline:hover{background:#f0f9f7}
.btn-dark{background:#0e4553;color:white}
.hero-art{position:absolute;right:-10px;top:-15px;width:50%;height:115%;opacity:.72;pointer-events:none}
.hero-art svg{width:100%;height:100%}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px;margin:22px 0 35px}
.stat{display:flex;align-items:center;gap:15px;background:#fff;border:1px solid #ebf0ef;border-radius:12px;padding:17px 20px;min-width:0}
.stat-icon{flex:none;height:44px;width:44px;border-radius:12px;background:#eaf6f3;color:#078480;display:grid;place-items:center;font-size:22px}
.stat strong{display:block;font-size:23px;font-weight:850;letter-spacing:-.7px}
.stat span{display:block;font-size:11px;color:#8a9ba4;margin-top:2px}
.section-header{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:17px}
.section-header h2{margin-bottom:5px}.section-header p{margin-bottom:0;color:#8798a2;font-size:12px}
.text-link{background:none;border:0;color:#0a8182;font-size:12px;font-weight:850;padding:5px;white-space:nowrap}
.semester-switch{display:flex;gap:8px;overflow-x:auto;padding:3px 0 13px;scrollbar-width:thin}
.semester-pill{flex:none;min-width:74px;height:42px;border:1px solid #dde8e8;border-radius:9px;background:#fff;color:#667d8a;font-size:12px;font-weight:800}
.semester-pill:hover{border-color:#64afaf;color:#087e80}
.semester-pill.active{background:#0d5261;border-color:#0d5261;color:#fff;box-shadow:0 6px 16px #0d52611f}
.catalog-toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;margin:0 0 19px}
.catalog-toolbar .count{color:#7c919c;font-size:11px;font-weight:700}.catalog-toolbar select{border:1px solid #dfe9e8;border-radius:8px;background:#fff;color:#536e79;padding:9px 10px;font-size:11px;max-width:220px}
.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}
.course-card{background:#fff;border:1px solid #e7eeef;border-radius:15px;min-height:247px;display:flex;flex-direction:column;padding:21px 21px 18px;box-shadow:0 6px 20px #28475d04;transition:transform .15s,box-shadow .15s,border-color .15s;position:relative;overflow:hidden}
.course-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfe5e2}
.course-card::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:var(--accent,#199b90);opacity:.78}
.card-upper{display:flex;justify-content:space-between;gap:12px;align-items:center}
.subject-orb{height:57px;width:57px;flex:none;display:grid;place-items:center;border-radius:50%;color:var(--accent);background:var(--tint);border:6px solid #fff;box-shadow:0 2px 11px #143d4d24;font-size:25px}
.subject-orb span{font-weight:600;line-height:1}.card-code{color:#a5b3bb;font-size:10px;font-weight:800;letter-spacing:.7px}
.course-card .area-tag{margin:14px 0 6px;font-size:10px;font-weight:750;color:var(--accent)}
.course-card h3{font-size:15px;line-height:1.4;margin-bottom:15px;min-height:42px;font-weight:790}
.course-card .card-bottom{margin-top:auto}.course-card .unit-count{color:#899ba3;font-size:11px}
.progress-line{height:5px;background:#edf3f2;border-radius:10px;overflow:hidden;margin:10px 0 12px}
.progress-line span{display:block;height:100%;background:var(--accent,#16a096);border-radius:10px;transition:width .25s}
.card-footer{display:flex;justify-content:space-between;align-items:center;gap:10px}.card-footer strong{font-size:11px;color:#49717b}
.card-arrow{border:0;background:#eef7f6;color:#0a7f80;width:31px;height:31px;border-radius:8px;font-size:19px}
.card-arrow:hover{background:#d3eee8}
.course-card button.card-cover{position:absolute;inset:0;width:100%;height:100%;background:transparent;border:0;opacity:0}
.course-card .card-arrow{pointer-events:none}
.course-card:focus-within{outline:3px solid #3bbdb4;outline-offset:2px}
.dashboard-bottom{display:grid;grid-template-columns:1.6fr 1fr;gap:18px;margin-top:28px}
.panel{background:#fff;border:1px solid #e7eff0;border-radius:15px;padding:25px;min-width:0}
.panel h3{font-size:16px;margin-bottom:7px}.panel-muted{font-size:12px;color:#8597a1}
.journey-row{display:flex;gap:12px;align-items:center;margin-top:18px}
.journey-dot{height:32px;width:32px;border-radius:9px;background:#eef7f7;color:#098285;display:grid;place-items:center;font-weight:800;flex:none}
.journey-title{flex:1;min-width:0;font-weight:700;font-size:12px}.journey-title small{display:block;font-size:10px;font-weight:500;color:#8a9ca4;margin-top:3px}
.journey-pct{font-size:11px;color:#0e7880;font-weight:900}
.tip-card{background:#f2f8f5;border:1px solid #dcece4;border-radius:10px;padding:17px;margin-top:18px;color:#4a6a66;font-size:12px;line-height:1.7}
.heading-row{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:23px}
.heading-row .lead{margin-bottom:0}.catalog-title{margin-bottom:9px}
.filter-bar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:25px}
.filter-bar label{font-size:12px;color:#6e8991;font-weight:700}
.filter-bar select{border:1px solid #dfe8e8;background:white;padding:10px 13px;border-radius:8px;min-width:185px;color:#425d6b}
.course-hero{border-radius:16px;overflow:hidden;position:relative;background:#0a364a;color:#fff;padding:29px 32px 31px;display:flex;justify-content:space-between;align-items:center;gap:20px}
.course-hero::before{content:"";position:absolute;border:1px solid #ffffff1a;border-radius:50%;height:320px;width:320px;right:-100px;top:-130px}
.course-hero .course-kicker{font-size:11px;color:#9dd0cc;font-weight:800;letter-spacing:1.2px;text-transform:uppercase}
.course-hero h1{max-width:670px;margin:10px 0 14px;color:#fff;font-size:clamp(24px,2.8vw,34px)}
.course-hero .course-meta{display:flex;flex-wrap:wrap;gap:14px;color:#cae0e3;font-size:11px}
.course-meta span{display:flex;align-items:center;gap:6px}.course-hero .course-progress-ring{flex:none;width:90px;height:90px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(#f28b56 var(--angle),#ffffff2b 0);position:relative}
.course-hero .course-progress-ring::before{content:"";position:absolute;inset:9px;border-radius:50%;background:#103e50}
.course-progress-ring div{z-index:1;position:relative;text-align:center}.course-progress-ring strong{display:block;font-size:22px}.course-progress-ring small{font-size:9px;color:#9fc3cc}
.crumb-back{display:inline-flex;gap:6px;background:transparent;border:0;color:#087d80;font-weight:800;font-size:12px;margin:0 0 16px;padding:4px 0}
.course-intro{color:#6d8290;font-size:13px;line-height:1.7;background:#fff;border:1px solid var(--line);border-top:0;padding:19px 28px;border-radius:0 0 13px 13px}
.course-layout{display:grid;grid-template-columns:minmax(260px,310px) minmax(0,1fr);align-items:start;gap:20px;margin-top:22px}
.syllabus{background:#fff;border:1px solid #e5ebee;border-radius:13px;overflow:hidden;position:sticky;top:96px}
.syllabus-head{padding:21px 22px 15px;border-bottom:1px solid #eaf0f0}.syllabus-head h3{margin:0 0 5px}.syllabus-head p{margin:0;color:#98a6ac;font-size:11px}
.unit-row{border-bottom:1px solid #edf1f1}.unit-row:last-child{border-bottom:0}
.unit-toggle{border:0;background:#fff;width:100%;padding:13px 18px;display:flex;gap:10px;align-items:flex-start;text-align:left;font-size:12px;color:#5e7782}
.unit-toggle:hover{background:#f7faf9}.unit-toggle.active{background:#eaf7f4;color:#0a7375}
.unit-toggle .unit-index{font-size:10px;font-weight:900;color:#93acb3;min-width:21px;padding-top:2px}
.unit-toggle .unit-label{line-height:1.45;flex:1;font-weight:650}
.check-small{width:16px;height:16px;border:1.4px solid #c8d5d7;flex:none;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:10px}
.check-small.done{background:#10a38f;border-color:#10a38f}
.syllabus-footer{padding:18px 20px;background:#f8fbfa}.syllabus-footer span{font-size:11px;color:#768e96}
.lesson-panel{background:#fff;border:1px solid #e4edef;border-radius:14px;min-width:0;overflow:hidden}
.lesson-top{padding:31px 35px 18px}.lesson-label{font-size:10px;color:#e47740;letter-spacing:1.5px;font-weight:850}
.lesson-top h2{font-size:clamp(22px,2.3vw,29px);line-height:1.25;margin:10px 0}.lesson-top p{color:#778d98;font-size:13px;line-height:1.7}
.lesson-banner{height:185px;background:#ebf5f3;position:relative;margin:0 35px 27px;border-radius:11px;overflow:hidden;display:flex;align-items:center;justify-content:space-between;padding:20px 35px}
.lesson-banner .banner-copy{position:relative;z-index:2;color:#1d6970;max-width:220px}.lesson-banner small{font-size:10px;font-weight:900;letter-spacing:1.3px;color:#6d9b9c}
.lesson-banner strong{display:block;font-size:20px;line-height:1.3;margin-top:8px}
.lesson-banner svg{height:100%;width:50%;min-width:210px}
.lesson-body{padding:0 35px 34px}.block-title{font-size:16px;margin:0 0 13px;font-weight:800;color:#173647}
.lesson-body p{color:#536e7c;font-size:13px;line-height:1.8}
.learning-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin:0 0 28px;padding:0;list-style:none}
.learning-list li{display:flex;gap:9px;align-items:flex-start;font-size:12px;color:#54707b;line-height:1.6}.learning-list li::before{content:"✓";color:#098a83;font-weight:900}
.section-divider{border:0;border-top:1px solid #edf2f1;margin:27px 0}
.concept-box{border-left:3px solid #0c9c92;background:#f5faf8;border-radius:0 9px 9px 0;padding:16px 20px;color:#46666d;margin:18px 0}
.concept-box strong{font-size:12px;display:block;color:#167b7c;margin-bottom:5px}.concept-box p{font-size:12px;margin:0}
.article-note{padding:16px 18px;border:1px solid #dcebea;border-radius:10px;background:#f8fcfc;color:#577b83;font-size:12px;line-height:1.7}
.exercise-card{background:#fff9f2;border:1px solid #f5e4cf;border-radius:11px;padding:24px;margin-top:9px}
.exercise-header{display:flex;align-items:center;gap:11px;color:#9c632f;font-weight:850;font-size:11px;letter-spacing:.7px;text-transform:uppercase;margin-bottom:10px}
.exercise-header span{height:31px;width:31px;border-radius:8px;background:#fee8ca;display:grid;place-items:center;font-size:19px}
.exercise-card h3{font-size:15px;color:#4c4034;margin-bottom:11px}.exercise-card p{font-size:12px;color:#77634f}
.exercise-card ol{padding-left:18px;color:#80664c;font-size:12px;line-height:1.85;margin:10px 0 0}
.reference-list{margin:10px 0 0;padding:0;list-style:none}.reference-list li{font-size:12px;color:#58717f;display:flex;gap:11px;align-items:flex-start;padding:11px 0;border-bottom:1px solid #eef2f2}
.reference-list li:last-child{border:0}.reference-list li .book{color:#178582;font-size:17px}
.lesson-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;background:#f8fbfb;border-top:1px solid #ecf2f1;padding:22px 35px}
.lesson-actions .btn{font-size:11px}.completed-caption{font-size:11px;color:#7f969d}
.big-progress{display:flex;align-items:center;gap:24px;background:linear-gradient(110deg,#0d4857,#17646a);color:white;padding:28px 32px;border-radius:14px;margin-bottom:26px}
.big-progress .big-percent{font-size:43px;font-weight:900;letter-spacing:-1.5px}
.big-progress h2{font-size:19px;margin:0 0 5px}.big-progress p{margin:0;color:#a9d1d4;font-size:12px}
.big-progress .progress-line{margin-left:auto;width:24%;height:8px;background:#ffffff3b}.big-progress .progress-line span{background:#f8a26d}
.semester-progress-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}
.semester-progress{background:#fff;border:1px solid #e4edee;border-radius:12px;padding:21px}
.semester-progress-head{display:flex;justify-content:space-between;font-size:14px;font-weight:850}.semester-progress-head b{color:#0a8581}
.semester-progress p{font-size:11px;color:#8ca0a8;margin:7px 0 15px}
.semester-progress .progress-line{margin-bottom:15px}
.tiny-course{display:flex;gap:10px;align-items:center;border-top:1px solid #eff3f2;padding:9px 0 0;margin-top:8px}
.tiny-course .tiny-name{font-size:11px;color:#617a85;flex:1}.tiny-course .tiny-pct{font-weight:800;color:#0f8b82;font-size:10px}
.library-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.book-card{background:#fff;border:1px solid #e4edef;border-radius:12px;padding:20px}
.book-card .book-overline{font-size:10px;letter-spacing:1px;text-transform:uppercase;color:#16877d;font-weight:900;margin-bottom:10px}
.book-card h3{font-size:14px;min-height:40px;margin:0 0 11px}.book-card ul{list-style:none;padding:0;margin:0 0 15px}
.book-card li{font-size:11px;color:#788d96;line-height:1.6;padding:6px 0;border-top:1px solid #eef3f3}
.empty-state{text-align:center;background:#fff;border:1px dashed #b9d4d4;border-radius:14px;padding:60px 20px;color:#668b93}.empty-state h3{color:#254855;font-size:18px}
.site-note{color:#97a6ad;font-size:10px;line-height:1.6;padding:36px 2px 0}
#toast{position:fixed;right:26px;bottom:25px;z-index:100;background:#0b4251;color:white;border-radius:9px;padding:13px 20px;box-shadow:0 10px 35px #0a324744;font-size:12px;opacity:0;transform:translateY(12px);pointer-events:none;transition:.2s}
#toast.show{opacity:1;transform:translateY(0)}
@media(max-width:1350px){.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:1070px){.sidebar{width:225px}.app-column{margin-left:225px}main{padding:30px 25px 60px}.topbar{padding:0 25px}.course-layout{grid-template-columns:255px minmax(0,1fr)}.lesson-top,.lesson-body{padding-left:25px;padding-right:25px}.lesson-banner{margin-left:25px;margin-right:25px}.lesson-actions{padding:20px 25px}.hero{padding:32px}}
@media(max-width:850px){.sidebar{width:280px;transform:translateX(-100%);transition:transform .22s}.sidebar.open{transform:translateX(0)}.sidebar.open~.mobile-dim,.mobile-dim.visible{display:block}.mobile-dim{display:none;position:fixed;inset:0;background:#071b2b9c;z-index:25}.app-column{margin-left:0}.menu-button{display:block;background:transparent;border:0;font-size:19px;color:#305669;padding:5px}.side-close{display:block;position:absolute;right:11px;top:17px;background:transparent;border:0;color:white;font-size:25px;z-index:2}.topbar{height:66px}.course-layout{grid-template-columns:1fr}.syllabus{position:static}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-art{opacity:.35;width:60%}.dashboard-bottom{grid-template-columns:1fr}}
@media(max-width:590px){main{padding:22px 15px 42px}.topbar{padding:0 15px;gap:12px}.topbar-crumb{display:none}.search-wrap{width:auto;flex:1;margin-left:0}.topbar-avatar{width:33px;height:33px}.hero{padding:27px 24px;min-height:285px}.hero-copy{max-width:100%}.hero-art{opacity:.18;width:95%;right:-50%}.hero h1{font-size:29px}.stats-grid{gap:9px;margin-top:12px}.stat{padding:12px;gap:9px}.stat strong{font-size:20px}.stat-icon{width:36px;height:36px;font-size:19px}.course-grid,.library-grid,.semester-progress-list{grid-template-columns:1fr}.course-card{min-height:220px}.lesson-banner{height:145px;padding:15px 20px}.lesson-banner svg{min-width:160px}.lesson-banner strong{font-size:16px}.learning-list{grid-template-columns:1fr}.course-hero{padding:23px}.course-hero .course-progress-ring{width:65px;height:65px}.course-progress-ring strong{font-size:16px}.lesson-actions{align-items:stretch}.lesson-actions .btn{flex:1}.big-progress{flex-wrap:wrap}.big-progress .progress-line{width:100%}.heading-row{display:block}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* v1.1.0 — detalle académico de la unidad 1, materia 1 */
.detail-menu{padding:7px 8px 10px;border-left:2px solid #d1e7e6;margin-left:25px}
.detail-menu-head{font-size:9px;font-weight:900;letter-spacing:1px;color:#7a969c;padding:7px 4px 8px}
.detail-menu-item{display:flex;align-items:flex-start;gap:9px;width:100%;text-align:left;background:none;border:1px solid transparent;border-radius:8px;padding:10px 8px;cursor:pointer;color:#476879}
.detail-menu-item:hover:not(:disabled){background:#f1f8f7}.detail-menu-item.selected{background:#e8f7f3;border-color:#cce8e2;color:#086d69}
.detail-menu-item.unpublished{opacity:.5;cursor:not-allowed}.detail-menu-number{font-size:11px;color:#0e8981;font-weight:900;min-width:25px}
.detail-menu-title{font-weight:700;font-size:11px;line-height:1.5}.detail-menu-title small{display:block;color:#7b989c;font-weight:500;font-size:10px}
.detail-lesson{padding:28px 35px 35px;color:#234350}.detail-eyebrow{letter-spacing:1.1px;font-size:10px;font-weight:900;color:#0c8883;text-transform:uppercase}
.detail-lesson h2{font-size:26px;letter-spacing:-.6px;margin:10px 0;color:#142f3d;line-height:1.25}.detail-lead{font-size:13px!important;line-height:1.8;color:#60818d;margin-bottom:22px}
.detail-progress{display:flex;gap:12px;justify-content:space-between;flex-wrap:wrap;color:#587d86;font-size:11px;border:1px solid #dcebe9;border-radius:9px;padding:12px;margin-bottom:22px}
.detail-progress-track{width:100%;background:#e6f0ee;border-radius:99px;height:7px;overflow:hidden}.detail-progress-track i{display:block;background:#109687;height:100%;border-radius:99px}
.detail-objectives{background:#f6faf9;border:1px solid #e0ebe9;padding:19px 22px;border-radius:10px;margin-bottom:25px}
.detail-objectives h3{font-size:14px;color:#205666;margin:0 0 9px}.detail-objectives ul{margin:0;padding-left:20px;color:#557783;font-size:12px;line-height:1.9}
.detail-article h3{font-size:17px;color:#163c4d;margin:28px 0 11px}.detail-article p{font-size:13px;line-height:1.9;color:#475f6f;margin:9px 0 14px}
.detail-article a{color:#087e7e;text-decoration:underline;text-underline-offset:2px}.detail-article a:hover{color:#07535c}
.lesson-table-wrap{overflow-x:auto;margin:14px 0 18px}.lesson-table-wrap table{width:100%;border-collapse:collapse;font-size:12px;line-height:1.5;min-width:400px}
.lesson-table-wrap th{background:#eff7f5;text-align:left;color:#1c6570;font-weight:800}.lesson-table-wrap th,.lesson-table-wrap td{padding:11px 12px;border:1px solid #e3eeee;vertical-align:top}
.detail-formula{background:#f1f7fa;color:#175675;border-left:3px solid #0c8a9b;border-radius:0 8px 8px 0;padding:15px 16px;font-size:15px;line-height:1.7;font-weight:750;margin:17px 0;overflow-wrap:anywhere}
.detail-note{background:#fff8ec;border:1px solid #f4e6cc;border-radius:9px;padding:16px 18px;color:#72552f;font-size:12px;line-height:1.8;margin:17px 0}
.steps{padding-left:23px;color:#496e7a;font-size:13px;line-height:1.85}.steps li{margin-bottom:5px}
.detail-solution{background:#f5f9f7;border:1px solid #dce9e4;border-radius:9px;margin:17px 0;padding:13px 17px;color:#346b65;font-size:12px}
.detail-solution summary{cursor:pointer;font-weight:800}.detail-solution p{margin-bottom:0}
.detail-ordered{display:grid;gap:8px;margin:17px 0}.detail-ordered>div{display:flex;align-items:center;gap:10px;padding:11px 12px;background:#f6fbfa;border-radius:8px;color:#587782;font-size:12px}
.detail-ordered b{background:#0b8881;border-radius:6px;color:#fff;padding:6px 9px;font-size:11px}
.numberline{max-width:550px;margin:15px 0;padding:15px 20px 13px;border:1px solid #dae9e9;border-radius:10px}
.numberline-values{display:flex;justify-content:space-between;color:#376c7b;font-size:12px;font-weight:700}.numberline-axis{margin:10px 3px 4px;background:#1a9391;height:2px;position:relative}
.numberline-axis:before,.numberline-axis:after{content:"";position:absolute;top:-4px;border:5px solid transparent}.numberline-axis:before{left:-11px;border-right-color:#1a9391}.numberline-axis:after{right:-11px;border-left-color:#1a9391}
.detail-quiz{border-top:1px solid #e4eeee;margin-top:30px;padding-top:23px}.detail-quiz-heading{display:flex;justify-content:space-between;gap:12px;align-items:center}.detail-quiz-heading h3{margin:4px 0 0;font-size:18px}.detail-quiz-heading>span{font-size:11px;color:#638a93;text-align:right}
.detail-quiz p{font-size:12px;color:#6d868e;line-height:1.7}.detail-question{border:1px solid #e3eded;border-radius:10px;margin:15px 0;padding:14px 17px}.detail-question legend{font-size:13px;color:#285264;font-weight:800;padding:0 5px}
.detail-question label{display:flex;align-items:center;gap:11px;padding:8px 6px;font-size:12px;color:#54727e;cursor:pointer;border-radius:5px}.detail-question label:hover{background:#f4f9f9}.detail-question input{accent-color:#087e80}
.detail-quiz-result{margin:16px 0;background:#ecf9f5;border:1px solid #d2eae5;border-radius:8px;padding:12px;font-size:12px;color:#17746e}
.detail-feedback{margin:15px 0;border:1px solid #dde9e9;border-radius:10px;padding:15px}.detail-feedback h4{margin:0 0 10px}.detail-feedback ol{padding-left:20px;display:grid;gap:10px;font-size:12px}
.detail-feedback li span{display:block;margin-top:4px;color:#567482;line-height:1.6}.detail-feedback .is-correct strong{color:#117d69}.detail-feedback .is-wrong strong{color:#ad5935}
.detail-lesson-footer{display:flex;gap:18px;align-items:center;flex-wrap:wrap;margin-top:25px;padding-top:22px;border-top:1px solid #e5eeee}.detail-lesson-footer p{font-size:11px;color:#77919a;line-height:1.6;flex:1}
@media(max-width:590px){.detail-lesson{padding:22px 19px}.detail-lesson h2{font-size:21px}.detail-quiz-heading{align-items:flex-start;flex-direction:column}.detail-quiz-heading>span{text-align:left}.detail-question{padding:11px}.detail-lesson-footer{align-items:stretch;flex-direction:column}.detail-lesson-footer p{margin:0}.lesson-table-wrap table{min-width:350px}}