/* indiauniversity.org — "Answer sheet" theme */
:root{
  --paper:#FBF8F1; --card:#FFFDF8; --tint:#F1EBDE; --line:#E6DFD0; --field:#9C937F;
  --ink:#1D2433; --ink-2:#464D5A; --muted:#5A6270;
  --blue:#1F4FA3; --blue-d:#163B7A; --blue-soft:#EEF2FA;
  --red:#D9534F; --red-t:#B23B37; --rule:#D5E0F2;
  --shadow:0 1px 3px rgba(60,50,30,.08);
  --w:1120px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 Inter,system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:var(--blue)} a:hover{color:var(--blue-d)}
img{max-width:100%}
h1,h2,h3{line-height:1.2;letter-spacing:-.01em;margin:0}
.wrap{max-width:var(--w);margin:0 auto;padding:0 24px}
.muted{color:var(--muted)}
.skip{position:absolute;left:-999px} .skip:focus{left:16px;top:8px;background:var(--card);padding:8px 12px;z-index:9}

/* header / footer */
.site-header{background:var(--card);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:16px;padding-bottom:16px}
.logo{font-weight:700;font-size:20px;color:var(--ink);text-decoration:none;letter-spacing:-.01em}
.logo span{color:var(--blue)}
.nav{display:flex;gap:24px;font-weight:500;font-size:15px}
.nav a{color:var(--ink);text-decoration:none;padding:10px 0}
.nav a[aria-current="page"]{color:var(--blue);box-shadow:inset 0 -2px 0 var(--blue)}
.site-footer{border-top:1px solid var(--line);margin-top:64px}
.site-footer .wrap{padding-top:32px;padding-bottom:48px;font-size:14px;color:var(--muted)}
.site-footer p{margin:0 0 8px}
.site-footer strong{color:var(--ink)}

/* ruled "answer sheet" motif */
.ruled{background-color:var(--card);background-image:repeating-linear-gradient(to bottom,transparent 0,transparent 31px,var(--rule) 31px,var(--rule) 32px);border-left:2px solid var(--red)}

/* home */
.hero{padding:56px 0 40px}
.hero-card{padding:32px 36px;border-radius:4px;box-shadow:var(--shadow)}
.eyebrow{margin:0 0 10px;font-size:14px;font-weight:600;color:var(--red-t);letter-spacing:.04em;text-transform:uppercase}
.hero h1{font-size:clamp(32px,5vw,48px);letter-spacing:-.02em;max-width:760px}
.lead{margin:18px 0 0;font-size:19px;color:var(--ink-2);max-width:640px}
.section{padding:0 0 56px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:18px}
.section-head h2{font-size:24px}
.band{background:var(--tint);padding:56px 0}

/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.grid.wide{grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}
.card{display:flex;flex-direction:column;gap:8px;padding:22px;background:var(--card);border:1px solid var(--line);border-radius:8px;color:var(--ink);text-decoration:none;box-shadow:0 1px 2px rgba(60,50,30,.06);min-height:128px}
a.card:hover{border-color:var(--blue);color:var(--ink)}
.card-top{display:flex;justify-content:space-between;align-items:center;gap:8px}
.card-name{font-size:17px;font-weight:600}
.card-desc{font-size:14px;color:var(--muted);line-height:1.5}
.card.soon{opacity:.75}
.pill{font-size:12px;font-weight:600;color:var(--muted);background:var(--tint);padding:3px 8px;border-radius:99px;white-space:nowrap}

/* page */
.page{padding-top:28px}
.crumbs{margin:0 0 14px;font-size:14px;color:var(--muted)}
.page h1{font-size:clamp(28px,4vw,40px);letter-spacing:-.02em}
.page .summary{margin:12px 0 0;font-size:18px;color:var(--muted);max-width:720px}
.cols{display:flex;flex-wrap:wrap;gap:48px;margin-top:48px}
.main-col{flex:999 1 560px;min-width:0;display:flex;flex-direction:column;gap:44px}
.side-col{flex:1 1 260px;align-self:flex-start;display:flex;flex-direction:column;gap:12px}
.side-col h2{font-size:16px;margin-bottom:4px}
.side-link{display:block;padding:14px 16px;background:var(--card);border:1px solid var(--line);border-radius:8px;color:var(--ink);text-decoration:none;font-weight:600}
.side-link small{display:block;font-weight:400;color:var(--ink-2);font-size:13px}
.side-link:hover{border-color:var(--blue);color:var(--ink)}
.block h2{font-size:24px;margin-bottom:14px}
.facts{margin:0;padding-left:20px}
.facts li{margin:0 0 8px}

/* tool */
.tool{margin-top:24px;display:flex;flex-wrap:wrap;background:var(--card);border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:var(--shadow)}
.tool-in{flex:999 1 420px;min-width:0;padding:26px;display:flex;flex-direction:column;gap:20px}
.tool-out{flex:1 1 320px;padding:26px 26px 26px 30px;display:flex;flex-direction:column;gap:14px}
.field{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:600;flex:1 1 160px;min-width:0}
.field small{font-weight:400;color:var(--muted)}
.row{display:flex;flex-wrap:wrap;gap:14px}
input[type=number],input[type=text],select{font:inherit;font-size:18px;font-weight:500;color:var(--ink);padding:10px 12px;min-height:48px;border:1px solid var(--field);border-radius:6px;background:#fff;width:100%}
input:focus,select:focus,button:focus-visible,a:focus-visible{outline:3px solid #9DB6E3;outline-offset:1px}
fieldset{border:0;margin:0;padding:0;min-width:0}
legend{font-size:14px;font-weight:600;margin-bottom:8px;padding:0}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{position:relative}
.chip input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer}
.chip span{display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border:1px solid var(--field);border-radius:99px;background:#fff;font-size:14px;font-weight:600}
.chip input:checked+span{background:var(--blue);border-color:var(--blue);color:#fff}
.chip input:focus-visible+span{outline:3px solid #9DB6E3;outline-offset:1px}
.btn{font:inherit;font-size:14px;font-weight:600;min-height:44px;padding:0 16px;border-radius:6px;border:1px solid var(--field);background:#fff;color:var(--ink);cursor:pointer}
.btn:hover{border-color:var(--blue)}
.btn-x{min-width:44px;padding:0;font-size:20px;line-height:1}
.note{margin:0;font-size:13px;color:var(--muted)}
.res-label{font-size:14px;font-weight:600;color:var(--red-t)}
.res-big{font-size:clamp(44px,6vw,64px);font-weight:700;line-height:1;letter-spacing:-.03em;color:var(--blue);font-variant-numeric:tabular-nums}
.res-msg{font-size:15px;font-weight:500;margin:0}
.res-rows{margin:0;display:flex;flex-direction:column}
.res-rows div{display:flex;justify-content:space-between;gap:12px;padding:7px 0;font-size:14px;line-height:18px}
.res-rows dt{color:var(--ink-2)} .res-rows dd{margin:0;font-weight:600;text-align:right}
.tag{display:inline-block;font-size:12px;font-weight:600;padding:2px 8px;border-radius:99px;background:var(--tint);color:var(--ink-2)}
.list-rows{display:flex;flex-direction:column;gap:10px}
.list-row{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap}
.list-row .field{flex:1 1 110px}
.list-row .idx{font-size:13px;color:var(--muted);min-width:24px;padding-bottom:14px}

/* example / faq / sources */
.example{border-radius:4px;padding:16px 22px;line-height:32px}
.example p{margin:0}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:15px;color:var(--blue)}
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq summary{cursor:pointer;font-weight:600}
.faq p{margin:8px 0 0;color:var(--ink-2);font-size:15px}
.table-box{overflow-x:auto;border:1px solid var(--line);border-radius:8px;background:var(--card)}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:520px}
th{background:var(--tint);text-align:left;padding:11px 14px}
td{padding:11px 14px;border-top:1px solid var(--line);vertical-align:top}

/* guide */
.article{flex:999 1 560px;min-width:0;max-width:700px}
.article .lead{font-size:19px}
.article h2{font-size:24px;margin:36px 0 10px}
.article p,.article li{font-size:17px;line-height:1.75}
.article ul{padding-left:22px}
.in-short{margin-top:36px;padding:16px 24px;border-radius:4px}
.in-short h2{margin:0;font-size:18px;line-height:32px;color:var(--red-t)}
.in-short ul{margin:0;line-height:32px}
.in-short li{font-size:16px;line-height:32px}
.tools-box{padding:22px;background:var(--card);border:1px solid var(--line);border-radius:8px}
.tools-box .side-link{background:var(--blue-soft);border-color:transparent;margin-top:10px}

@media (max-width:600px){
  .wrap{padding:0 16px}
  .hero{padding:28px 0}
  .hero-card{padding:22px 20px}
  .tool-in,.tool-out{padding:18px}
  .nav{gap:16px}
  .cols{gap:36px;margin-top:36px}
}