/* Course navigation: two subjects, direct curriculum links. */
.nav .nav-item-mega{position:static}
.nav .course-mega-v2{--cm-bg:#fff;--cm-ink:#14213b;--cm-muted:#617088;--cm-line:#e8ecf2;--cm-soft:#f5f7fb;position:absolute;left:50%;top:calc(100% + 4px);width:min(1200px,calc(100vw - 40px));padding:0;transform:translateX(-50%);background:var(--cm-bg);color:var(--cm-ink);border:1px solid var(--cm-line);border-radius:18px;box-shadow:0 20px 65px rgba(19,35,64,.18);max-height:calc(100dvh - 110px);overflow:auto;transition:opacity .15s ease;scrollbar-width:thin}
.nav .nav-item-mega:hover .course-mega-v2,.nav .nav-item-mega:focus-within .course-mega-v2,.nav .nav-item-mega.is-open .course-mega-v2{transform:translateX(-50%);opacity:1;visibility:visible;pointer-events:auto}
.nav .nav-item-mega.is-dismissed .course-mega-v2{opacity:0;visibility:hidden;pointer-events:none}
.nav .course-mega-v2::before,.nav .course-mega-v2::after{display:none}
.course-mega-v2 .cm-top{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:16px 22px;border-bottom:1px solid var(--cm-line)}
.course-mega-v2 .cm-tabs{display:flex;gap:6px;background:var(--cm-soft);padding:4px;border-radius:12px}
.course-mega-v2 .cm-tabs button{font:700 14px/1.3 var(--font-body,'DM Sans',sans-serif);display:flex;align-items:center;gap:9px;background:transparent;border:0;border-radius:9px;padding:10px 16px;color:var(--cm-muted);cursor:pointer}
.course-mega-v2 .cm-tabs button[aria-selected=true]{background:#172746;color:#fff;box-shadow:0 2px 5px #14213b18}
.course-mega-v2 .cm-icon{font-size:17px;font-weight:600;color:#bc8530}
.nav .course-mega-v2 a{color:var(--cm-ink)!important;text-decoration:none;background:none!important;transform:none!important;box-shadow:none!important;letter-spacing:normal}
.nav .course-mega-v2 a::after{display:none}
.nav .course-mega-v2 .cm-all{padding:8px!important;font-size:12px!important;font-weight:700;white-space:nowrap}
.course-mega-v2 .cm-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;padding:22px 12px 20px}
.course-mega-v2 .cm-grid[hidden]{display:none!important}
.course-mega-v2 .cm-column{min-width:0;padding:0 14px;border-right:1px solid var(--cm-line)}
.course-mega-v2 .cm-column:last-child{border:0}
.course-mega-v2 .cm-group+.cm-group{margin-top:20px}
.course-mega-v2 .cm-group h3{font:800 11px/1.4 var(--font-body,'DM Sans',sans-serif);text-transform:uppercase;letter-spacing:1px;color:#8c6328;margin:0 7px 8px}
.course-mega-v2 .cm-group p{font-size:11px;color:var(--cm-muted);line-height:1.45;margin:-3px 7px 8px}
.nav .course-mega-v2 .cm-group>a{display:flex;align-items:center;justify-content:space-between;gap:7px;font-size:12px!important;line-height:1.4;padding:7px!important;margin:1px 0;border-radius:6px;font-weight:500}
.course-mega-v2 .cm-group>a>span{opacity:0;color:#956517;transition:opacity .15s}
.nav .course-mega-v2 .cm-group>a:hover,.nav .course-mega-v2 a:focus-visible{background:var(--cm-soft)!important;color:#285ab0!important}
.course-mega-v2 .cm-group>a:hover>span{opacity:1}
.course-mega-v2 :focus-visible{outline:2px solid #3979dc;outline-offset:2px}
.course-mega-v2 .cm-years{display:flex;gap:7px;margin:0 7px}
.nav .course-mega-v2 .cm-years a{display:grid;place-items:center;min-width:32px;min-height:33px;padding:5px!important;background:var(--cm-soft)!important;border:1px solid var(--cm-line);border-radius:7px;font-size:12px!important;font-weight:700}
.course-mega-v2 .cm-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 26px;background:var(--cm-soft);border-top:1px solid var(--cm-line)}
.nav .course-mega-v2 .cm-footer>a{display:flex;align-items:center;gap:10px;padding:0!important;font-size:12px!important;font-weight:700}
.course-mega-v2 .cm-help{display:grid;place-items:center;border:1px solid #ccd6e5;border-radius:50%;width:26px;height:26px;font-size:14px;color:var(--cm-muted)}
.course-mega-v2 .cm-footer small{display:block;color:var(--cm-muted);font-size:11px;font-weight:400;line-height:1.6}
.nav .course-mega-v2 a.cm-book{padding:10px 15px!important;border:1px solid #e8d4ad;border-radius:8px;background:#fff8e9!important;color:#785019!important;white-space:nowrap}
[data-theme=dark] .nav .course-mega-v2{--cm-bg:#132039;--cm-ink:#e8effb;--cm-muted:#a7b6cf;--cm-line:#2a3953;--cm-soft:#1b2c47}
[data-theme=dark] .course-mega-v2 .cm-group h3{color:#e6bd76}
[data-theme=dark] .course-mega-v2 .cm-tabs button[aria-selected=true]{background:#36557d}
@media(prefers-reduced-motion:reduce){.nav .course-mega-v2,.course-mega-v2 *{transition:none!important}}

/* Refined typography and curriculum accents. */
.nav .course-mega-v2{--cm-ink:#182644;--cm-muted:#64718a;border-color:#dce3f0;border-radius:22px;box-shadow:0 26px 75px #18264430,0 2px 8px #1826440a;font-family:var(--font-body,'DM Sans',sans-serif)}
.course-mega-v2 .cm-top{padding:17px 22px;background:linear-gradient(110deg,#f2f5ff,#fff 64%,#fff9ed)}
.course-mega-v2 .cm-tabs{background:#e8edf8;padding:5px;border-radius:14px}
.course-mega-v2 .cm-tabs button{font-size:16px;font-weight:750;padding:11px 18px;border-radius:10px;transition:background .18s,color .18s}
.course-mega-v2 .cm-tabs button[aria-selected=true]{background:linear-gradient(120deg,#253c76,#5541a5);box-shadow:0 4px 10px #393f7529}
.course-mega-v2 .cm-icon{display:grid;place-items:center;width:27px;height:27px;border-radius:8px;background:#ffffff70;color:#745321;font-size:19px}
.course-mega-v2 .cm-tabs button[aria-selected=true] .cm-icon{background:#ffffff18;color:#ffe0a0}
.nav .course-mega-v2 .cm-all{font-size:13px!important;color:#465b92!important}
.course-mega-v2 .cm-grid{padding:22px 12px 19px}
.course-mega-v2 .cm-column{--cm-accent:#5946b7;--cm-tint:#f2effd;padding:0 13px}
.course-mega-v2 .cm-column:nth-child(2){--cm-accent:#2365a4;--cm-tint:#edf5fd}
.course-mega-v2 .cm-column:nth-child(3){--cm-accent:#147964;--cm-tint:#edf8f3}
.course-mega-v2 .cm-column:nth-child(4){--cm-accent:#9a6320;--cm-tint:#fdf5e8}
.course-mega-v2 .cm-group h3{font-size:14px;font-weight:800;line-height:1.35;text-transform:none;letter-spacing:-.15px;color:var(--cm-accent);margin:0 0 10px;padding:8px 10px;border-radius:8px;background:var(--cm-tint);border-left:3px solid var(--cm-accent)}
.course-mega-v2 .cm-group p{font-size:12px;line-height:1.4;margin:-3px 9px 8px}
.course-mega-v2 .cm-group+.cm-group{margin-top:17px}
.nav .course-mega-v2 .cm-group>a{font-size:13.5px!important;font-weight:600;line-height:1.4;padding:7px 9px!important;border-radius:8px;transition:background .15s,color .15s}
.course-mega-v2 .cm-group>a>span{opacity:.35;color:var(--cm-accent);font-size:15px}
.nav .course-mega-v2 .cm-group>a:hover{background:var(--cm-tint)!important;color:var(--cm-accent)!important}
.course-mega-v2 .cm-group>a:hover>span{opacity:1}
.course-mega-v2 .cm-years{gap:7px;margin:0 8px}
.nav .course-mega-v2 .cm-years a{min-width:35px;min-height:36px;background:var(--cm-tint)!important;color:var(--cm-accent)!important;font-size:14px!important;border-color:#e1dcf5;border-radius:9px}
.nav .course-mega-v2 .cm-years a:hover{background:var(--cm-accent)!important;color:#fff!important}
.course-mega-v2 .cm-footer{padding:13px 24px;background:linear-gradient(110deg,#f3f5fc,#faf8ff)}
.nav .course-mega-v2 .cm-footer>a{font-size:13px!important}
.course-mega-v2 .cm-footer small{font-size:12px;line-height:1.5}
.course-mega-v2 .cm-help{width:31px;height:31px;color:#5d4ab1;background:#eae5fb;border:0;font-weight:800}
.nav .course-mega-v2 a.cm-book{padding:11px 17px!important;border:0;border-radius:10px;background:linear-gradient(115deg,#344b89,#6450b4)!important;color:white!important}
[data-theme=dark] .course-mega-v2 .cm-top,[data-theme=dark] .course-mega-v2 .cm-footer{background:#192a46}
[data-theme=dark] .course-mega-v2 .cm-tabs{background:#101d33}
[data-theme=dark] .course-mega-v2 .cm-column{--cm-accent:#c7b8ff;--cm-tint:#292944}
[data-theme=dark] .course-mega-v2 .cm-column:nth-child(2){--cm-accent:#a5d2ff;--cm-tint:#1d354d}
[data-theme=dark] .course-mega-v2 .cm-column:nth-child(3){--cm-accent:#94dfc7;--cm-tint:#193c39}
[data-theme=dark] .course-mega-v2 .cm-column:nth-child(4){--cm-accent:#edcc94;--cm-tint:#3b3429}
[data-theme=dark] .nav .course-mega-v2 .cm-all{color:#c0cfff!important}
@media(min-width:1025px) and (max-width:1150px){.course-mega-v2 .cm-column{padding:0 9px}.nav .course-mega-v2 .cm-group>a{font-size:13px!important}.course-mega-v2 .cm-group h3{font-size:13px}}

/* Keep the complete menu comfortable on laptop-height screens. */
.course-mega-v2 .cm-top{padding:12px 22px}
.course-mega-v2 .cm-grid{padding:16px 12px 14px}
.course-mega-v2 .cm-group h3{padding:6px 10px;margin-bottom:8px}
.course-mega-v2 .cm-group+.cm-group{margin-top:13px}
.nav .course-mega-v2 .cm-group>a{padding:6px 9px!important}