/* Layout concept: a marked-up worksheet on graph paper. Left-aligned, ruled sections, one red pen accent. */
:root{
  --paper:#F6F8FB; --panel:#FFFFFF; --ink:#14213D; --muted:#4B5870; --rule:#D5DCE8;
  --grid:rgba(20,33,61,.06); --pen:#C4262E; --pen-ink:#FFFFFF; --good:#1D7A4F; --soft:#E9EEF6;
  --display:"Bricolage Grotesque","Trebuchet MS",sans-serif; --body:"Source Sans 3","Segoe UI",sans-serif; --mono:"JetBrains Mono",ui-monospace,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#0F1626; --panel:#172036; --ink:#EAF0FB; --muted:#A9B6CD; --rule:#2B3750; --grid:rgba(234,240,251,.06);
  --pen:#FF6B6F; --pen-ink:#14131A; --good:#5CC48F; --soft:#1D2842; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#0F1626; --panel:#172036; --ink:#EAF0FB; --muted:#A9B6CD; --rule:#2B3750; --grid:rgba(234,240,251,.06);
  --pen:#FF6B6F; --pen-ink:#14131A; --good:#5CC48F; --soft:#1D2842; color-scheme:dark}
*{box-sizing:border-box}
body{margin:0}
body{background:var(--paper);color:var(--ink);font:400 17px/1.6 var(--body);padding-block:0;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.wrap{max-width:1040px;margin-inline:auto}
h1,h2,h3{font-family:var(--display);line-height:1.1;text-wrap:balance;margin:0}
h1{font-size:clamp(2.2rem,6vw,3.9rem);font-weight:700;letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,3.6vw,2.3rem);font-weight:700;letter-spacing:-.01em}
h3{font-size:1.2rem;font-weight:700}
p{margin:0}
.eyebrow{font:600 .8rem/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.hero{background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:28px 28px;margin-inline:calc(-1*max(16px,env(safe-area-inset-left,0px)));padding:56px max(16px,env(safe-area-inset-left,0px)) 56px;border-bottom:2px solid var(--ink)}
.hero .wrap{display:grid;gap:22px}
.lede{font-size:1.2rem;max-width:34em;color:var(--ink)}
.hl{background:linear-gradient(transparent 62%,color-mix(in srgb,var(--pen) 30%,transparent) 62%)}
.cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.btn{display:inline-block;font:600 1rem/1 var(--body);padding:15px 22px;border:2px solid var(--ink);color:var(--ink);text-decoration:none;background:transparent;cursor:pointer}
.btn.main{background:var(--pen);color:var(--pen-ink);border-color:var(--pen)}
.btn:focus-visible{outline:3px solid var(--ink);outline-offset:3px}
.btn[aria-disabled="true"]{opacity:.7;cursor:not-allowed}
.note{font-size:.92rem;color:var(--muted)}
section{padding-block:60px;border-bottom:1px solid var(--rule)}
section>.wrap{display:grid;gap:26px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.two>*{min-width:0}
@media(max-width:760px){.two{grid-template-columns:1fr}}
.q{background:var(--panel);border:1px solid var(--rule);padding:22px;font-family:var(--mono);font-size:.95rem;line-height:1.55}
.q .stem{font-weight:600;margin-bottom:10px}
.q .opt{display:flex;gap:10px;padding:5px 8px;margin-inline:-8px}
.q .opt b{min-width:1.3em}
.q .opt.right{color:var(--good)}
.q .opt.pick{box-shadow:inset 3px 0 0 var(--pen);background:color-mix(in srgb,var(--pen) 10%,transparent)}
.tag{font:400 .9rem/1.45 var(--body);margin-top:12px;padding-top:12px;border-top:1px dashed var(--rule);color:var(--ink)}
.tag span{color:var(--pen);font:600 .8rem var(--mono);letter-spacing:.04em}
ol.steps{list-style:none;counter-reset:s;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:860px){ol.steps{grid-template-columns:1fr 1fr}}
@media(max-width:520px){ol.steps{grid-template-columns:1fr}}
ol.steps li{counter-increment:s;border-top:3px solid var(--ink);padding-top:12px;min-width:0}
ol.steps li::before{content:"Step " counter(s);font:600 .78rem var(--mono);color:var(--pen);letter-spacing:.06em;text-transform:uppercase;display:block;margin-bottom:6px}
ol.steps b{display:block;font-family:var(--display);font-size:1.1rem;margin-bottom:4px}
ol.steps span{color:var(--muted);font-size:.96rem}
.bars{display:grid;gap:14px;font-family:var(--mono);font-size:.9rem}
.bar{display:grid;grid-template-columns:5.4em 1fr 4em;gap:10px;align-items:center}
.track{background:var(--soft);height:26px}
.fill{height:100%;background:var(--ink)}
.fill.post{background:var(--good)}
.lbl{color:var(--muted)}
.val{text-align:right;font-weight:600}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.chips li{border:1px solid var(--pen);color:var(--pen);padding:4px 10px;font-size:.9rem}
.box{background:var(--panel);border:1px solid var(--rule);padding:22px;min-width:0}
.box h3{margin-bottom:8px}
ul.inc{margin:0;padding:0;list-style:none;display:grid;gap:12px}
ul.inc li{display:grid;grid-template-columns:1.4em 1fr;gap:10px}
ul.inc li::before{content:"✓";color:var(--good);font-weight:700}
details{border-top:1px solid var(--rule);padding:14px 0}
details:last-of-type{border-bottom:1px solid var(--rule)}
summary{cursor:pointer;font:600 1.05rem var(--body)}
summary:focus-visible{outline:3px solid var(--ink);outline-offset:3px}
details p{margin-top:8px;color:var(--muted)}
footer{padding-block:34px 60px;font-size:.9rem;color:var(--muted)}
@media(prefers-reduced-motion:no-preference){.btn{transition:transform .12s}.btn:hover:not([aria-disabled="true"]){transform:translate(-2px,-2px)}}

.nav{border-bottom:1px solid var(--rule);background:var(--paper)}
.nav .wrap{display:flex;flex-wrap:wrap;gap:8px 22px;align-items:center;justify-content:space-between;padding-block:14px}
.brand{font:700 1.05rem var(--display);color:var(--ink);text-decoration:none}
.nav ul{display:flex;flex-wrap:wrap;gap:6px 20px;list-style:none;margin:0;padding:0}
.nav a:not(.brand){color:var(--ink);text-decoration:none;font-weight:600;font-size:.97rem;border-bottom:2px solid transparent}
.nav a:not(.brand):hover,.nav a[aria-current="page"]{border-bottom-color:var(--pen)}
.nav a:focus-visible{outline:3px solid var(--ink);outline-offset:3px}
.grades{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:960px){.grades{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.grades{grid-template-columns:1fr}}
.grade{background:var(--panel);border:1px solid var(--rule);border-top:3px solid var(--ink);padding:18px;min-width:0;display:grid;gap:12px;align-content:start}
.grade h3{font-size:1.1rem}
.course{display:grid;gap:2px;padding-top:10px;border-top:1px dashed var(--rule)}
.course code{font:600 .85rem var(--mono);color:var(--muted)}
.course .nm{font-weight:600;line-height:1.3}
.status{font-size:.88rem;color:var(--muted)}
.status.live{color:var(--good);font-weight:600}
.course a{color:var(--ink);text-underline-offset:3px}
.feature{display:grid;grid-template-columns:1.1fr 1fr;gap:34px;align-items:start}
.feature>*{min-width:0}
@media(max-width:760px){.feature{grid-template-columns:1fr}}
.map{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}
.cl{background:var(--panel);border:1px solid var(--rule);min-width:0}
.cl h3{background:var(--ink);color:var(--paper);font-size:1rem;padding:10px 14px}
.cl ol{margin:0;padding:12px 14px 14px 36px;display:grid;gap:4px;font-size:.95rem}
.cl ol li::marker{font:600 .8rem var(--mono);color:var(--pen)}
.textlink{color:var(--ink);font-weight:600;text-underline-offset:3px}