/* ==========================================================================
   Biemann EduHub — Design System v1.0
   Layout idea: Sotheby's-style navy masthead over ivory editorial sections,
   Sutherland-style bold statements, data panels and card rails.
   Brand colours come from the Biemann logo: deep navy, electric blue, cyan,
   with pink reserved for small accents only.
   ========================================================================== */
:root{
  /* Brand */
  --navy-950:#00142A;
  --navy-900:#001B36;
  --navy:#002349;          /* masthead (Sotheby's-like) */
  --navy-700:#0A3466;
  --navy-600:#164A86;
  --blue:#0A8FDB;          /* logo electric blue */
  --blue-ink:#00659F;      /* blue for text on light */
  --cyan:#3FD8F7;          /* logo cyan (decor on dark) */
  --sky:#E7F3FB;
  --sky-2:#D3EAF8;
  --pink:#EE0A73;          /* accent — use sparingly */
  --pink-soft:#FDE6F0;
  /* Neutrals (slight navy bias) */
  --ivory:#F6F4EE;
  --ivory-2:#EFEBE2;
  --paper:#FFFFFF;
  --sand:#E4DED2;
  --line:#DAD5CA;
  --line-cool:#D5DEE8;
  --ink:#0D1B2D;
  --ink-2:#3E4D61;
  --ink-3:#6A7789;
  --on-dark:#E8EEF6;
  --on-dark-2:#A9B7C9;
  /* Semantic */
  --ok:#0F7A4F; --ok-bg:#E3F4EC;
  --warn:#A55A00; --warn-bg:#FCF1E0;
  --bad:#B4232F; --bad-bg:#FBE7E9;
  /* Type */
  --f-display:"Newsreader","Iowan Old Style","Palatino Linotype",Georgia,serif;
  --f-ui:"Montserrat","Segoe UI","Helvetica Neue",Arial,sans-serif;
  --f-body:"Source Sans 3","Segoe UI","Helvetica Neue",Arial,sans-serif;
  --fs-xs:.78rem; --fs-sm:.875rem; --fs-md:1rem; --fs-lg:1.125rem; --fs-xl:1.35rem;
  --fs-h3:clamp(1.25rem,1.1rem + .6vw,1.6rem);
  --fs-h2:clamp(1.8rem,1.35rem + 1.8vw,2.9rem);
  --fs-h1:clamp(2.3rem,1.6rem + 3vw,4.4rem);
  /* Shape */
  --r-sm:6px; --r:10px; --r-lg:16px; --r-xl:24px;
  --sh-1:0 1px 2px rgba(0,27,54,.06),0 1px 1px rgba(0,27,54,.04);
  --sh-2:0 8px 24px -10px rgba(0,27,54,.22),0 2px 6px rgba(0,27,54,.06);
  --sh-3:0 24px 60px -24px rgba(0,20,42,.45);
  --wrap:1280px;
  --gut:clamp(16px,4vw,40px);
  --head-h:76px;
  --ease:cubic-bezier(.2,.7,.2,1);
  color-scheme:light;
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;overflow-x:clip;scroll-behavior:smooth;scroll-padding-top:calc(var(--head-h) + 16px)}
body{margin:0;overflow-x:clip;background:var(--ivory);color:var(--ink);font:400 var(--fs-md)/1.6 var(--f-body);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{max-width:100%;display:block}
a{color:var(--blue-ink);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--navy)}
h1,h2,h3,h4{font-family:var(--f-display);font-weight:500;line-height:1.08;letter-spacing:-.01em;margin:0;text-wrap:balance;color:var(--ink)}
h1{font-size:var(--fs-h1)} h2{font-size:var(--fs-h2)} h3{font-size:var(--fs-h3);line-height:1.2}
h4{font-family:var(--f-ui);font-size:var(--fs-sm);font-weight:700;letter-spacing:.02em}
p{margin:0}
p+p{margin-top:.9em}
em.hl{font-style:italic;color:var(--blue-ink)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:4px}
::selection{background:var(--sky-2);color:var(--navy)}
.icon{width:1.15em;height:1.15em;flex:none;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;display:inline-block;vertical-align:-.2em}
.icon--fill{fill:currentColor;stroke:none}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:12px;top:-60px;z-index:999;background:var(--paper);color:var(--navy);padding:10px 16px;border-radius:var(--r);font:600 var(--fs-sm) var(--f-ui);box-shadow:var(--sh-2)}
.skip:focus{top:12px}
.num{font-variant-numeric:tabular-nums}
.muted{color:var(--ink-3)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.wrap--narrow{max-width:880px}
.measure{max-width:65ch}

/* ---------- Typographic helpers ---------- */
.eyebrow{font:700 .72rem/1.2 var(--f-ui);letter-spacing:.16em;text-transform:uppercase;color:var(--blue-ink);display:inline-flex;align-items:center;gap:.6em}
.eyebrow::before{content:"";width:22px;height:2px;background:currentColor;opacity:.7}
.eyebrow--plain::before{display:none}
.eyebrow--pink{color:var(--pink)}
.lede{font-size:clamp(1.05rem,1rem + .35vw,1.25rem);color:var(--ink-2);line-height:1.6;max-width:62ch}
.kicker{font:600 var(--fs-sm) var(--f-ui);color:var(--ink-3)}
.t-ui{font-family:var(--f-ui)}
.t-sm{font-size:var(--fs-sm)} .t-xs{font-size:var(--fs-xs)}

/* ---------- Sections ---------- */
.sec{padding:clamp(56px,7vw,112px) 0;position:relative}
.sec--tight{padding:clamp(40px,5vw,72px) 0}
.sec--white{background:var(--paper)}
.sec--ivory{background:var(--ivory)}
.sec--sand{background:var(--ivory-2)}
.sec--navy{background:var(--navy);color:var(--on-dark)}
.sec--deep{background:var(--navy-950);color:var(--on-dark)}
.sec--navy h1,.sec--navy h2,.sec--navy h3,.sec--deep h1,.sec--deep h2,.sec--deep h3{color:#fff}
.sec--navy .lede,.sec--deep .lede{color:var(--on-dark-2)}
.sec--navy .eyebrow,.sec--deep .eyebrow{color:var(--cyan)}
.sec--navy a:not(.btn),.sec--deep a:not(.btn){color:#9FDDF8}
.sec-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px 48px;align-items:end;margin-bottom:clamp(28px,4vw,48px)}
.sec-head h2{margin-top:14px}
.sec-head .lede{margin-top:14px}
.sec-head--center{grid-template-columns:minmax(0,1fr);text-align:center;justify-items:center}
.sec-head--center .eyebrow::before{display:none}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---------- Grid helpers ---------- */
.grid{display:grid;gap:clamp(16px,2vw,28px)}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g-auto{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(28px,5vw,80px);align-items:center}
.split--top{align-items:start}
.stack{display:flex;flex-direction:column;gap:16px}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.row--between{justify-content:space-between}
@media (max-width:1024px){.g-4{grid-template-columns:repeat(2,minmax(0,1fr))}.g-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:860px){.split{grid-template-columns:minmax(0,1fr)}.sec-head{grid-template-columns:minmax(0,1fr)}}
@media (max-width:620px){.g-2,.g-3,.g-4{grid-template-columns:minmax(0,1fr)}}

/* ---------- Buttons ---------- */
.btn{--bg:var(--navy);--fg:#fff;--bd:var(--navy);display:inline-flex;align-items:center;justify-content:center;gap:.55em;min-height:46px;padding:0 22px;border-radius:999px;border:1.5px solid var(--bd);background:var(--bg);color:var(--fg);font:600 .82rem/1 var(--f-ui);letter-spacing:.06em;text-transform:uppercase;text-decoration:none;white-space:nowrap;transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s}
.btn:hover{--bg:var(--navy-700);--bd:var(--navy-700);color:var(--fg);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn:active{transform:none}
.btn .icon{width:1.05em;height:1.05em}
.btn--blue{--bg:var(--blue-ink);--bd:var(--blue-ink)}
.btn--blue:hover{--bg:#005386;--bd:#005386}
.btn--ghost{--bg:transparent;--fg:var(--navy);--bd:var(--navy)}
.btn--ghost:hover{--bg:var(--navy);--fg:#fff}
.btn--light{--bg:#fff;--fg:var(--navy);--bd:#fff}
.btn--light:hover{--bg:var(--sky);--bd:var(--sky);--fg:var(--navy)}
.btn--outline-light{--bg:transparent;--fg:#fff;--bd:rgba(255,255,255,.55)}
.btn--outline-light:hover{--bg:#fff;--fg:var(--navy);--bd:#fff}
.btn--sm{min-height:36px;padding:0 15px;font-size:.72rem}
.btn--lg{min-height:54px;padding:0 28px;font-size:.86rem}
.btn--block{width:100%}
.btn[disabled],.btn[aria-disabled="true"]{opacity:.45;pointer-events:none}
.icon-btn{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:999px;border:1px solid transparent;background:transparent;color:inherit;transition:background .2s,border-color .2s}
.icon-btn:hover{background:rgba(0,35,73,.07)}
.link-arrow{display:inline-flex;align-items:center;gap:.45em;font:700 .78rem var(--f-ui);letter-spacing:.1em;text-transform:uppercase;text-decoration:none;color:var(--navy)}
.link-arrow .icon{transition:transform .2s var(--ease)}
.link-arrow:hover .icon{transform:translateX(4px)}
.sec--navy .link-arrow,.sec--deep .link-arrow{color:#fff}

/* ---------- Chips / badges ---------- */
.chip{display:inline-flex;align-items:center;gap:.4em;padding:5px 12px;border-radius:999px;border:1px solid var(--line);background:var(--paper);font:600 .76rem/1.2 var(--f-ui);color:var(--ink-2);white-space:nowrap}
button.chip{transition:border-color .2s,background .2s,color .2s}
button.chip:hover{border-color:var(--navy);color:var(--navy)}
.chip[aria-pressed="true"],.chip.is-on{background:var(--navy);border-color:var(--navy);color:#fff}
.badge{display:inline-flex;align-items:center;gap:.35em;padding:3px 9px;border-radius:999px;font:700 .68rem/1.3 var(--f-ui);letter-spacing:.06em;text-transform:uppercase;background:var(--sky);color:var(--blue-ink)}
.badge--ok{background:var(--ok-bg);color:var(--ok)}
.badge--warn{background:var(--warn-bg);color:var(--warn)}
.badge--bad{background:var(--bad-bg);color:var(--bad)}
.badge--navy{background:var(--navy);color:#fff}
.badge--pink{background:var(--pink-soft);color:#B3005A}
.badge--line{background:transparent;border:1px solid var(--line);color:var(--ink-2)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--pink);display:inline-block}

/* ---------- Cards ---------- */
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(20px,2.2vw,28px);position:relative;transition:border-color .25s,box-shadow .25s,transform .25s}
.card--hover:hover{border-color:var(--navy-600);box-shadow:var(--sh-2);transform:translateY(-3px)}
.card--flat{border-color:transparent;background:var(--ivory)}
.card--navy{background:var(--navy);border-color:var(--navy);color:var(--on-dark)}
.card--navy h3{color:#fff}
.card h3{margin-bottom:8px}
.card .card-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px}
.card-ico{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;background:var(--sky);color:var(--blue-ink);margin-bottom:18px}
.card-ico .icon{width:24px;height:24px}
.card-link{position:absolute;inset:0;border-radius:inherit}
.card-link:focus-visible{outline-offset:-3px}

/* ---------- Forms ---------- */
.field{display:flex;flex-direction:column;gap:6px}
.label{font:600 .78rem var(--f-ui);color:var(--ink-2);letter-spacing:.02em}
.input,.select,.textarea{width:100%;min-height:46px;padding:10px 14px;border:1.5px solid var(--line);border-radius:var(--r);background:var(--paper);color:var(--ink);transition:border-color .2s,box-shadow .2s}
.textarea{min-height:120px;resize:vertical;line-height:1.5}
.select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none' stroke='%23002349' stroke-width='2'%3E%3Cpath d='M1 1.5l5 5 5-5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px}
.input:focus,.select:focus,.textarea:focus{outline:0;border-color:var(--blue);box-shadow:0 0 0 4px rgba(10,143,219,.15)}
.input::placeholder,.textarea::placeholder{color:#8C97A6}
.hint{font-size:var(--fs-xs);color:var(--ink-3)}
.field.is-invalid .input,.field.is-invalid .select{border-color:var(--bad)}
.err{font-size:var(--fs-xs);color:var(--bad);display:none}
.field.is-invalid .err{display:block}
.check{display:flex;gap:10px;align-items:flex-start;font-size:var(--fs-sm);color:var(--ink-2);cursor:pointer}
.check input{width:18px;height:18px;margin-top:2px;accent-color:var(--navy)}
.search-field{position:relative}
.search-field .icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--ink-3)}
.search-field .input{padding-left:46px}
.seg{display:inline-flex;padding:4px;border-radius:999px;background:var(--ivory-2);gap:2px;flex-wrap:wrap}
.seg button{border:0;background:transparent;padding:8px 16px;border-radius:999px;font:600 .78rem var(--f-ui);color:var(--ink-2);letter-spacing:.02em}
.seg button[aria-selected="true"],.seg button.is-on{background:var(--paper);color:var(--navy);box-shadow:var(--sh-1)}
.range{width:100%;accent-color:var(--blue-ink)}

/* ---------- Tabs ---------- */
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{border:0;background:none;padding:14px 18px;font:600 .82rem var(--f-ui);letter-spacing:.04em;color:var(--ink-3);border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap;display:inline-flex;gap:8px;align-items:center}
.tab:hover{color:var(--navy)}
.tab[aria-selected="true"]{color:var(--navy);border-bottom-color:var(--navy)}
.tab[aria-selected="true"]::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--pink)}
.tabpanel[hidden]{display:none}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--paper)}
.table{width:100%;border-collapse:collapse;font-size:var(--fs-sm)}
.table th{font:700 .7rem var(--f-ui);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);text-align:left;padding:14px 16px;background:var(--ivory);border-bottom:1px solid var(--line);white-space:nowrap}
.table td{padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.table tr:last-child td{border-bottom:0}
.table tbody tr:hover td{background:#FBFAF6}
.table .num{text-align:right}

/* ---------- Stat tiles ---------- */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid rgba(255,255,255,.14)}
.stat{padding:28px 24px 0;border-right:1px solid rgba(255,255,255,.14)}
.stat:last-child{border-right:0}
.stat b{display:block;font:500 clamp(2rem,1.5rem + 2vw,3.2rem)/1 var(--f-display);color:#fff;font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:10px;font:600 .72rem var(--f-ui);letter-spacing:.12em;text-transform:uppercase;color:var(--on-dark-2)}
.stats--light{border-top-color:var(--line)}
.stats--light .stat{border-right-color:var(--line)}
.stats--light .stat b{color:var(--navy)}
.stats--light .stat span{color:var(--ink-3)}
@media (max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2){border-right:0}.stat{padding-bottom:22px}}

/* ---------- Utility bar + masthead ---------- */
.util{background:var(--navy-950);color:var(--on-dark-2);font:500 .72rem var(--f-ui);letter-spacing:.05em}
.util .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px}
.util a{color:var(--on-dark-2);text-decoration:none}
.util a:hover{color:#fff}
.util-l,.util-r{display:flex;align-items:center;gap:18px}
.util-sel{display:inline-flex;align-items:center;gap:6px;border:0;background:transparent;color:var(--on-dark-2);font:inherit;letter-spacing:inherit;padding:4px 0}
.util-sel:hover{color:#fff}
.util select{background:transparent;border:0;color:var(--on-dark-2);font:inherit;letter-spacing:inherit;cursor:pointer;padding:2px 0}
.util select option{color:var(--ink)}
.util .live{display:inline-flex;align-items:center;gap:7px}
.util .live::before{content:"";width:6px;height:6px;border-radius:50%;background:#2EE59D;box-shadow:0 0 0 3px rgba(46,229,157,.18)}
@media (max-width:860px){.util .hide-md{display:none}}

.masthead{position:sticky;top:0;z-index:80;background:var(--navy);color:#fff;transition:box-shadow .3s,background .3s}
.masthead.is-scrolled{box-shadow:0 10px 30px -12px rgba(0,10,25,.6);background:rgba(0,35,73,.97);backdrop-filter:saturate(1.2) blur(8px)}
.masthead::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,transparent,rgba(63,216,247,.35),transparent)}
.mh{display:flex;align-items:center;gap:24px;height:var(--head-h);transition:height .3s}
.masthead.is-scrolled .mh{height:64px}
.brand{display:flex;align-items:center;flex:none;text-decoration:none}
.brand img{height:40px;width:auto;transition:height .3s}
.masthead.is-scrolled .brand img{height:34px}
.nav{display:flex;align-items:stretch;gap:2px;margin:0 auto;height:100%}
.nav>li{list-style:none;display:flex;align-items:stretch;position:static}
.nav-a{display:inline-flex;align-items:center;gap:6px;padding:0 14px;border:0;background:none;color:#fff;font:600 .74rem var(--f-ui);letter-spacing:.14em;text-transform:uppercase;text-decoration:none;position:relative;white-space:nowrap}
.nav-a .icon{width:14px;height:14px;opacity:.7;transition:transform .2s}
.nav-a::after{content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.nav-a:hover,.nav-a[aria-expanded="true"]{color:#fff}
.nav-a:hover::after,.nav-a[aria-expanded="true"]::after,.nav-a[aria-current="page"]::after{transform:scaleX(1)}
.nav-a[aria-current="page"]::after{background:var(--pink)}
.nav-a[aria-expanded="true"] .icon{transform:rotate(180deg)}
.masthead.is-scrolled .nav-a::after{bottom:14px}
.mh-actions{display:flex;align-items:center;gap:6px;flex:none}
.mh-actions .icon-btn{color:#fff}
.mh-actions .icon-btn:hover{background:rgba(255,255,255,.1)}
.kbd{font:600 .66rem var(--f-ui);border:1px solid rgba(255,255,255,.3);border-radius:5px;padding:2px 6px;color:var(--on-dark-2)}
.search-trigger{display:inline-flex;align-items:center;gap:10px;height:40px;padding:0 12px 0 14px;border-radius:999px;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);color:var(--on-dark);font:500 .8rem var(--f-ui)}
.search-trigger:hover{background:rgba(255,255,255,.12)}
.nav-toggle{display:none}
@media (max-width:1180px){.search-trigger .lbl,.search-trigger .kbd{display:none}.search-trigger{width:42px;padding:0;justify-content:center}}
@media (max-width:1060px){.nav,.mh-actions .hide-lg,.mega{display:none}.nav-toggle{display:inline-grid}.mh{justify-content:space-between}}

/* Mega menu */
.mega{position:absolute;left:0;right:0;top:100%;background:var(--ivory);color:var(--ink);border-top:1px solid rgba(255,255,255,.08);box-shadow:var(--sh-3);opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .2s,transform .25s var(--ease),visibility 0s .25s}
.mega.is-open{opacity:1;visibility:visible;transform:none;transition:opacity .2s,transform .25s var(--ease)}
.mega-in{display:grid;grid-template-columns:repeat(3,minmax(0,1fr)) minmax(0,1.25fr);gap:40px;padding:36px 0 40px}
.mega h4{font:700 .68rem var(--f-ui);letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3);margin-bottom:14px}
.mega ul{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.mega li a{display:flex;gap:12px;align-items:flex-start;padding:9px 10px;margin:0 -10px;border-radius:var(--r);text-decoration:none;color:var(--ink)}
.mega li a:hover{background:var(--paper)}
.mega li a .icon{color:var(--blue-ink);margin-top:3px}
.mega li a b{display:block;font:600 .9rem var(--f-ui);color:var(--navy)}
.mega li a small{display:block;color:var(--ink-3);font-size:.82rem;line-height:1.35;margin-top:2px}
.mega-feature{background:var(--navy);color:var(--on-dark);border-radius:var(--r-lg);padding:26px;display:flex;flex-direction:column;gap:12px;position:relative;overflow:hidden}
.mega-feature h3{color:#fff;font-size:1.45rem}
.mega-feature p{color:var(--on-dark-2);font-size:.92rem}
.mega-feature .btn{align-self:flex-start;margin-top:auto}
.mega-feature::after{content:"";position:absolute;right:-40px;top:-40px;width:160px;height:160px;border-radius:50%;background:radial-gradient(circle at 35% 35%,rgba(63,216,247,.5),rgba(10,143,219,.15) 60%,transparent 70%)}

/* Mobile drawer */
.drawer{position:fixed;inset:0;z-index:120;display:none}
.drawer.is-open{display:block}
.drawer-scrim{position:absolute;inset:0;background:rgba(0,14,30,.55);animation:fade .2s}
.drawer-panel{position:absolute;top:0;right:0;bottom:0;width:min(420px,92vw);background:var(--navy);color:#fff;display:flex;flex-direction:column;animation:slideIn .3s var(--ease);overflow-y:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid rgba(255,255,255,.12)}
.drawer-head img{height:30px;width:auto}
.drawer nav{padding:12px 12px 24px}
.drawer details{border-bottom:1px solid rgba(255,255,255,.1)}
.drawer summary{list-style:none;display:flex;justify-content:space-between;align-items:center;padding:16px 10px;font:600 .82rem var(--f-ui);letter-spacing:.12em;text-transform:uppercase;cursor:pointer}
.drawer summary::-webkit-details-marker{display:none}
.drawer details[open] summary .icon{transform:rotate(180deg)}
.drawer details a,.drawer .d-link{display:block;padding:10px 10px 10px 18px;color:var(--on-dark);text-decoration:none;font-size:.98rem}
.drawer .d-link{font:600 .82rem var(--f-ui);letter-spacing:.12em;text-transform:uppercase;padding:16px 10px;border-bottom:1px solid rgba(255,255,255,.1)}
.drawer details a:hover{color:var(--cyan)}
.drawer-cta{padding:0 20px 28px;display:grid;gap:10px;margin-top:auto}

/* ---------- Page hero (inner pages) ---------- */
.phero{background:var(--navy);color:var(--on-dark);position:relative;overflow:hidden;isolation:isolate}
.phero .wrap{position:relative;padding-top:clamp(40px,6vw,84px);padding-bottom:clamp(44px,6vw,88px)}
.phero h1{color:#fff;max-width:18ch}
.phero .lede{color:var(--on-dark-2);margin-top:20px}
.phero .eyebrow{color:var(--cyan)}
.phero-art{position:absolute;inset:0;z-index:-1;pointer-events:none}
.phero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(28px,5vw,72px);align-items:end}
@media (max-width:900px){.phero-grid{grid-template-columns:minmax(0,1fr)}}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font:600 .72rem var(--f-ui);letter-spacing:.1em;text-transform:uppercase;color:var(--on-dark-2);margin-bottom:22px}
.crumbs a{color:var(--on-dark-2);text-decoration:none}
.crumbs a:hover{color:#fff}
.crumbs .icon{width:12px;height:12px;opacity:.6}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.glass{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-lg);backdrop-filter:blur(6px);padding:22px}
.glass h3{color:#fff;font-size:1.2rem}
.ribbon-art{position:absolute;right:-6%;top:-10%;width:min(720px,70vw);height:auto;opacity:.9}
.bubbles{position:absolute;inset:0;background:
  radial-gradient(circle at 78% 22%,rgba(63,216,247,.55) 0 6px,transparent 7px),
  radial-gradient(circle at 82% 18%,rgba(10,143,219,.6) 0 9px,transparent 10px),
  radial-gradient(circle at 74% 14%,rgba(238,10,115,.75) 0 5px,transparent 6px),
  radial-gradient(circle at 86% 12%,rgba(122,60,220,.55) 0 7px,transparent 8px);opacity:.9}
.gridlines{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(ellipse at 70% 30%,#000 30%,transparent 75%)}

/* ---------- Footer ---------- */
.foot{background:var(--navy-950);color:var(--on-dark-2);font-size:.92rem}
.foot a{color:var(--on-dark-2);text-decoration:none}
.foot a:hover{color:#fff}
.foot-top{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(4,minmax(0,1fr));gap:40px;padding:72px 0 48px}
.foot-brand img{width:min(340px,100%);height:auto}
.foot-brand p{margin-top:20px;max-width:38ch;line-height:1.6}
.foot h4{color:#fff;font:700 .7rem var(--f-ui);letter-spacing:.16em;text-transform:uppercase;margin-bottom:16px}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.foot-news{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center;padding:36px 0;border-top:1px solid rgba(255,255,255,.1);border-bottom:1px solid rgba(255,255,255,.1)}
.foot-news h3{color:#fff;font-size:1.6rem}
.news-form{display:flex;gap:8px}
.news-form .input{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2);color:#fff}
.news-form .input::placeholder{color:var(--on-dark-2)}
.foot-bot{display:flex;flex-wrap:wrap;gap:16px 28px;justify-content:space-between;align-items:center;padding:24px 0 32px;font-size:.8rem}
.foot-bot nav{display:flex;flex-wrap:wrap;gap:18px}
.socials{display:flex;gap:8px;margin-top:22px}
.socials a{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;border:1px solid rgba(255,255,255,.18)}
.socials a:hover{background:#fff;color:var(--navy)}
.foot-bar{height:4px;background:linear-gradient(90deg,var(--navy-700),var(--blue) 45%,var(--cyan) 70%,var(--blue) 90%,var(--pink))}
@media (max-width:1000px){.foot-top{grid-template-columns:repeat(2,minmax(0,1fr))}.foot-brand{grid-column:1/-1}.foot-news{grid-template-columns:minmax(0,1fr)}}
@media (max-width:520px){.foot-top{grid-template-columns:minmax(0,1fr)}.news-form{flex-direction:column}}

/* ---------- Overlays: palette, modal, panels ---------- */
.overlay{position:fixed;inset:0;z-index:150;display:none;align-items:flex-start;justify-content:center;padding:10vh 16px 16px;background:rgba(0,14,30,.6);backdrop-filter:blur(3px)}
.overlay.is-open{display:flex;animation:fade .15s}
.palette{width:min(680px,100%);background:var(--paper);border-radius:var(--r-lg);box-shadow:var(--sh-3);overflow:hidden;animation:pop .2s var(--ease)}
.palette-in{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line)}
.palette-in input{flex:1;border:0;outline:0;font-size:1.1rem;background:transparent}
.palette-res{max-height:min(60vh,520px);overflow-y:auto;padding:8px}
.palette-grp{font:700 .66rem var(--f-ui);letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3);padding:12px 12px 6px}
.palette-item{display:flex;align-items:center;gap:14px;padding:10px 12px;border-radius:var(--r);text-decoration:none;color:var(--ink)}
.palette-item .pi{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:var(--sky);color:var(--blue-ink);flex:none}
.palette-item b{display:block;font:600 .92rem var(--f-ui);color:var(--navy)}
.palette-item small{color:var(--ink-3)}
.palette-item.is-active,.palette-item:hover{background:var(--ivory)}
.palette-item mark{background:var(--sky-2);color:inherit;border-radius:3px;padding:0 2px}
.palette-foot{display:flex;gap:16px;padding:10px 18px;border-top:1px solid var(--line);font:500 .72rem var(--f-ui);color:var(--ink-3);background:var(--ivory)}
.palette-empty{padding:28px;text-align:center;color:var(--ink-3)}
.modal{width:min(560px,100%);background:var(--paper);border-radius:var(--r-lg);box-shadow:var(--sh-3);padding:28px;animation:pop .2s var(--ease);max-height:84vh;overflow:auto}
.modal--wide{width:min(980px,100%)}
.modal-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:16px}
.sidepanel{position:fixed;top:0;right:0;bottom:0;width:min(560px,100%);z-index:140;visibility:hidden;background:var(--paper);box-shadow:var(--sh-3);transform:translateX(105%);transition:transform .35s var(--ease),visibility 0s .35s;display:flex;flex-direction:column}
.sidepanel.is-open{transform:none;visibility:visible;transition:transform .35s var(--ease)}
.sidepanel-head{padding:20px 24px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px;background:var(--navy);color:#fff}
.sidepanel-head h2,.sidepanel-head h3{color:#fff}
.sidepanel-head .icon-btn{color:#fff}
.sidepanel-body{padding:24px;overflow-y:auto;flex:1}
.scrim{position:fixed;inset:0;background:rgba(0,14,30,.45);z-index:130;display:none}
.scrim.is-open{display:block;animation:fade .2s}

/* A11y panel */
.a11y-panel{position:fixed;right:16px;top:calc(var(--head-h) + 52px);z-index:110;width:min(340px,calc(100vw - 32px));background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-3);padding:20px;display:none}
.a11y-panel.is-open{display:block;animation:pop .2s var(--ease)}
.a11y-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font:600 .84rem var(--f-ui);color:var(--ink-2)}
.a11y-row:last-of-type{border-bottom:0}
.switch{position:relative;width:44px;height:26px;flex:none}
.switch input{opacity:0;width:100%;height:100%;position:absolute;margin:0;cursor:pointer;z-index:1}
.switch span{position:absolute;inset:0;border-radius:999px;background:var(--sand);transition:background .2s}
.switch span::after{content:"";position:absolute;left:3px;top:3px;width:20px;height:20px;border-radius:50%;background:#fff;box-shadow:var(--sh-1);transition:transform .2s}
.switch input:checked+span{background:var(--navy)}
.switch input:checked+span::after{transform:translateX(18px)}
.switch input:focus-visible+span{outline:3px solid var(--blue);outline-offset:2px}

/* Cookie */
.cookie{position:fixed;left:16px;bottom:16px;z-index:105;width:min(460px,calc(100vw - 32px));background:var(--navy);color:var(--on-dark);border-radius:var(--r-lg);box-shadow:var(--sh-3);padding:20px 22px;display:none}
.cookie.is-open{display:block;animation:pop .25s var(--ease)}
.cookie h3{color:#fff;font-size:1.15rem;margin-bottom:6px}
.cookie p{font-size:.88rem;color:var(--on-dark-2)}
.cookie .row{margin-top:14px}

/* Toast */
.toasts{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:200;display:grid;gap:8px;justify-items:center;pointer-events:none}
.toast{pointer-events:auto;display:flex;align-items:center;gap:10px;background:var(--navy-950);color:#fff;padding:12px 18px;border-radius:999px;box-shadow:var(--sh-3);font:500 .86rem var(--f-ui);animation:pop .25s var(--ease)}
.toast .icon{color:var(--cyan)}

/* Assistant */
.assist-fab{position:fixed;right:20px;bottom:20px;z-index:100;display:inline-flex;align-items:center;gap:10px;height:56px;padding:0 22px 0 8px;border-radius:999px;border:0;background:var(--navy);color:#fff;box-shadow:var(--sh-3);font:600 .8rem var(--f-ui);letter-spacing:.04em}
.assist-fab img{width:40px;height:40px;border-radius:50%;background:var(--navy-950);padding:4px}
.assist-fab:hover{background:var(--navy-700)}
.assist-fab .pulse{position:absolute;right:14px;top:12px;width:8px;height:8px;border-radius:50%;background:var(--pink)}
.assist{position:fixed;right:20px;bottom:88px;z-index:101;width:min(420px,calc(100vw - 32px));height:min(620px,calc(100vh - 120px));background:var(--paper);border-radius:var(--r-xl);box-shadow:var(--sh-3);display:none;flex-direction:column;overflow:hidden;border:1px solid var(--line)}
.assist.is-open{display:flex;animation:pop .25s var(--ease)}
.assist-head{background:var(--navy);color:#fff;padding:16px 18px;display:flex;align-items:center;gap:12px}
.assist-head img{width:38px;height:38px;border-radius:50%;background:var(--navy-950);padding:4px}
.assist-head b{display:block;font:600 .95rem var(--f-ui)}
.assist-head small{color:var(--on-dark-2);font-size:.78rem}
.assist-head .icon-btn{margin-left:auto;color:#fff}
.assist-log{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:12px;background:var(--ivory)}
.msg{max-width:88%;padding:12px 14px;border-radius:16px;font-size:.93rem;line-height:1.5}
.msg ul{margin:6px 0;padding-left:18px}
.msg p+p{margin-top:6px}
.msg--bot{background:var(--paper);border:1px solid var(--line);border-bottom-left-radius:4px;align-self:flex-start}
.msg--me{background:var(--navy);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}
.msg .src{display:block;margin-top:8px;font-size:.76rem;color:var(--ink-3)}
.assist-chips{display:flex;flex-wrap:wrap;gap:6px;padding:10px 14px;border-top:1px solid var(--line);background:var(--paper)}
.assist-form{display:flex;gap:8px;padding:12px 14px;border-top:1px solid var(--line);background:var(--paper)}
.assist-form .input{min-height:44px}
.typing{display:inline-flex;gap:4px}
.typing i{width:6px;height:6px;border-radius:50%;background:var(--ink-3);animation:blink 1s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@media (max-width:620px){.assist-fab .lbl{display:none}.assist-fab{padding:0 8px}}

/* Back to top */
.to-top{position:fixed;left:20px;bottom:20px;z-index:90;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--paper);color:var(--navy);display:grid;place-items:center;box-shadow:var(--sh-2);opacity:0;pointer-events:none;transition:opacity .25s}
.to-top.is-on{opacity:1;pointer-events:auto}

/* ---------- Shared content patterns ---------- */
.feature-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.feature-list li{display:flex;gap:12px;align-items:flex-start}
.feature-list .icon{color:var(--blue-ink);margin-top:3px}
.sec--navy .feature-list .icon{color:var(--cyan)}
.steps-rail{counter-reset:s;display:grid;gap:0}
.step{display:grid;grid-template-columns:56px 1fr;gap:18px;padding:18px 0;border-top:1px solid var(--line)}
.step:first-child{border-top:0}
.step-n{width:44px;height:44px;border-radius:50%;border:1.5px solid var(--navy);display:grid;place-items:center;font:600 .9rem var(--f-ui);color:var(--navy)}
.step h3{font-size:1.15rem;margin-bottom:4px}
.quote{font:400 clamp(1.4rem,1.1rem + 1.2vw,2.1rem)/1.3 var(--f-display);color:var(--ink)}
.callout{display:flex;gap:14px;padding:16px 18px;border-radius:var(--r);background:var(--sky);color:var(--navy);font-size:.92rem}
.callout .icon{margin-top:3px;color:var(--blue-ink)}
.callout--warn{background:var(--warn-bg);color:#5C3300}
.callout--warn .icon{color:var(--warn)}
.callout--pink{background:var(--pink-soft);color:#5E0030}
.callout--pink .icon{color:var(--pink)}
.empty{padding:48px 20px;text-align:center;color:var(--ink-3);border:1.5px dashed var(--line);border-radius:var(--r-lg)}
.mono{font:700 .82rem var(--f-ui);letter-spacing:.04em;width:52px;height:52px;border-radius:14px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--navy-700),var(--blue));flex:none}
.progress{height:8px;border-radius:999px;background:var(--ivory-2);overflow:hidden}
.progress>span{display:block;height:100%;background:linear-gradient(90deg,var(--navy-600),var(--blue));border-radius:inherit;transition:width .5s var(--ease)}
.progress--pink>span{background:linear-gradient(90deg,var(--blue),var(--pink))}
.meter{display:grid;gap:6px}
.meter-top{display:flex;justify-content:space-between;font:600 .78rem var(--f-ui);color:var(--ink-2)}
.ring{--p:0;--c:var(--blue-ink);width:120px;height:120px;border-radius:50%;background:conic-gradient(var(--c) calc(var(--p)*1%),var(--ivory-2) 0);display:grid;place-items:center;position:relative}
.ring::before{content:"";position:absolute;inset:10px;border-radius:50%;background:var(--paper)}
.ring b{position:relative;font:500 2rem var(--f-display);color:var(--navy)}
.kv{display:grid;grid-template-columns:auto 1fr;gap:8px 18px;font-size:var(--fs-sm)}
.kv dt{color:var(--ink-3);font-family:var(--f-ui);font-weight:600}
.kv dd{margin:0;color:var(--ink)}
.acc{border-top:1px solid var(--line)}
.acc details{border-bottom:1px solid var(--line)}
.acc summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;align-items:center;padding:22px 0;font:500 1.2rem/1.3 var(--f-display);color:var(--ink)}
.acc summary::-webkit-details-marker{display:none}
.acc summary .pm{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;flex:none;transition:transform .25s,background .2s}
.acc details[open] summary .pm{transform:rotate(45deg);background:var(--navy);color:#fff;border-color:var(--navy)}
.acc .acc-body{padding:0 0 22px;color:var(--ink-2);max-width:72ch}
.pill-nav{position:sticky;top:63px;z-index:40;background:rgba(246,244,238,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.pill-nav .wrap{display:flex;gap:6px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scrollbar-width:none}
.pill-nav a{flex:none;padding:8px 14px;border-radius:999px;font:600 .76rem var(--f-ui);letter-spacing:.04em;color:var(--ink-2);text-decoration:none}
.pill-nav a:hover{background:var(--paper);color:var(--navy)}
.pill-nav a.is-on{background:var(--navy);color:#fff}
.demo-note{display:inline-flex;align-items:center;gap:8px;font:600 .74rem var(--f-ui);color:var(--warn);background:var(--warn-bg);padding:6px 12px;border-radius:999px}
.save-btn[aria-pressed="true"]{color:var(--pink)}
.save-btn[aria-pressed="true"] .icon{fill:currentColor}

/* ---------- Motion ---------- */
@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes pop{from{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:none}}
@keyframes slideIn{from{transform:translateX(100%)}to{transform:none}}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.reveal{transition:transform .7s var(--ease)}
.reveal.pre{transform:translateY(14px)}

/* ---------- Accessibility preferences ---------- */
html.a11y-text-lg{font-size:112.5%}
html.a11y-text-xl{font-size:125%}
html.a11y-links a{text-decoration:underline!important}
html.a11y-spacing body{letter-spacing:.03em;word-spacing:.12em;line-height:1.85}
html.a11y-contrast{--ink-2:#1A2638;--ink-3:#33415A;--line:#8E98A8;--blue-ink:#004A78;--on-dark-2:#E1E9F3}
html.a11y-motion *,html.a11y-motion *::before,html.a11y-motion *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* ---------- Print ---------- */
@media print{
  .util,.masthead,.foot,.assist-fab,.assist,.to-top,.cookie,.pill-nav,.no-print{display:none!important}
  body{background:#fff}
  .sec{padding:16px 0}
}

/* ---------- Biemann Group bar ---------- */
.group-bar{background:#000C1A;color:rgba(255,255,255,.72);font:600 .7rem var(--f-ui);letter-spacing:.06em;border-bottom:1px solid rgba(255,255,255,.06)}
.gb{display:flex;align-items:center;gap:18px;min-height:34px}
.gb-home{display:inline-flex;align-items:center;gap:5px;color:#fff;text-decoration:none;letter-spacing:.22em;font-size:.68rem;white-space:nowrap}
.gb-home b{font-weight:700}.gb-home span{color:var(--cyan);font-weight:600}
.gb-nav{display:flex;align-items:center;gap:4px;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none}
.gb-nav::-webkit-scrollbar{display:none}
.gb-nav a{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;color:rgba(255,255,255,.7);text-decoration:none;white-space:nowrap;transition:background .2s,color .2s}
.gb-nav a .icon{width:13px;height:13px;opacity:.8}
.gb-nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.gb-nav a[aria-current]{color:#fff;background:rgba(10,143,219,.22);box-shadow:inset 0 0 0 1px rgba(63,216,247,.35)}
.gb-nav a[aria-current] .icon{color:var(--cyan);opacity:1}
.gb-lang{display:inline-flex;align-items:center;gap:6px;color:#fff;white-space:nowrap}
.gb-lang .icon{width:14px;height:14px;color:var(--cyan)}
.gb-lang select{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:999px;color:#fff;font:600 .72rem var(--f-ui);letter-spacing:.03em;padding:4px 10px;cursor:pointer}
.gb-lang select option{color:var(--ink)}
@media (max-width:640px){.gb{gap:10px}.gb-home{display:none}.gb-nav a{padding:6px 8px}}
@media print{.group-bar{display:none!important}}
/* University logo slot (falls back to the monogram) */
.mono{position:relative;overflow:hidden}
.mono .uni-logo{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#fff;padding:10%;border-radius:inherit}
.mono.has-logo{background:#fff;box-shadow:inset 0 0 0 1px var(--line)}
.mono.has-logo .mono-t{visibility:hidden}

.az-list{list-style:none;margin:22px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:8px}
.az-list a{display:grid;grid-template-columns:auto 1fr;gap:2px 12px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink);background:var(--paper);transition:border-color .2s}
.az-list a:hover{border-color:var(--blue)}
.az-list b{grid-row:span 2;align-self:center;font:700 .72rem var(--f-ui);color:var(--blue-ink);min-width:46px}
.az-list small{color:var(--ink-3);font-size:.78rem}
@media (max-width:640px){.gb-pre{display:none}}

/* ===== 2026-11 UX update: slim cookie strip, account button, focused labs, low-data mode, offline ===== */
.cookie{left:0;right:0;bottom:0;width:auto;border-radius:0;padding:10px max(16px,env(safe-area-inset-left));display:none;align-items:center;justify-content:center;gap:10px 18px;flex-wrap:wrap;box-shadow:0 -10px 30px -16px rgba(0,0,0,.5)}
.cookie.is-open{display:flex}
.cookie p{margin:0;font-size:.82rem;max-width:720px}
.cookie p a{color:#fff}
.cookie .row{margin:0;gap:8px}
.acct-btn{position:relative}
.acct-ini{position:absolute;inset:4px;border-radius:50%;background:var(--blue,#1F6FEB);color:#fff;display:grid;place-items:center;font:700 .72rem var(--f-ui);letter-spacing:.02em}
body[data-page$="-lab"] .assist-fab,body[data-page="data-science"] .assist-fab,body[data-page="ds-exam"] .assist-fab,body[data-page="real-data"] .assist-fab,body[data-page="account"] .assist-fab,body[data-page="teacher"] .assist-fab,body[data-page="admin"] .assist-fab{display:none!important}
@media (max-width:700px){.group-bar .gb-nav{display:none}.group-bar .gb{justify-content:space-between}}
.net-off{position:fixed;left:50%;top:10px;transform:translateX(-50%);z-index:120;background:#3A2A00;color:#FFE6A8;border:1px solid #8A6D2B;border-radius:999px;padding:6px 14px;font:600 .78rem var(--f-ui);display:none;gap:6px;align-items:center}
.net-off.is-on{display:inline-flex}
.net-off .icon{width:15px;height:15px}
/* Low-data mode: no web fonts, no decorative art, no animation, images only on request */
html.lite *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
html.lite .phero-art,html.lite .hero-art,html.lite .gridlines,html.lite .aurora,html.lite video{display:none!important}
html.lite body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
html.lite h1,html.lite h2,html.lite h3{font-family:Georgia,"Times New Roman",serif}
html.lite img[data-lite-hide]{display:none!important}
.lite-toggle{display:inline-flex;gap:8px;align-items:center;cursor:pointer}
.lite-toggle input{accent-color:var(--blue,#1F6FEB)}
@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
@media (max-width:700px){.group-bar .gb-home{display:inline-flex!important}}
@media (max-width:1499px){.mh-actions > .btn.hide-lg{display:none}}
/* OPLE AI */
.assist-disc{margin:0;padding:6px 14px 10px;font:500 .7rem/1.4 var(--f-ui);color:var(--ink-3);text-align:center}
.ople-note{font-size:.78rem;opacity:.75}
.ople-table{width:100%;border-collapse:collapse;font-size:.84rem;margin:6px 0}
.ople-table th,.ople-table td{border-bottom:1px solid rgba(127,127,127,.25);padding:4px 6px;text-align:left}
.msg--bot ul{margin:6px 0 6px 18px}

.gb-home img{width:20px;height:20px;border-radius:50%;margin-right:3px;flex:none}