/* ======================================================================
   KRWA Operator Exam Prep — demo theme
   Co-branded skin for the Kansas Rural Water Association presentation.
   Brand colors are CSS variables so they're easy to fine-tune later.
   ====================================================================== */
:root{
  --navy:#0d3b5e;        /* deep KRWA blue */
  --blue:#1c6fb3;        /* primary */
  --blue-dk:#155a93;
  --teal:#1aa6a0;        /* water accent */
  --gold:#f2a900;        /* KRWA gold accent */
  --ink:#16242e;
  --mut:#556876;
  --line:#e1e8ee;
  --bg:#f4f7f9;
  --card:#ffffff;
  --good:#1f8a4c;
  --good-bg:#e9f8ef;
  --bad:#c0392b;
  --bad-bg:#fdecea;
  --shadow:0 1px 3px rgba(13,59,94,.08),0 6px 20px rgba(13,59,94,.06);
  --radius:12px;
  --maxw:1080px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font:18px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* ---------- top bar ---------- */
.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.topbar .wrap{display:flex;align-items:center;gap:16px;height:66px;position:relative}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-logo{display:flex;align-items:center;gap:12px;min-width:0;text-decoration:none}
.brand img{height:42px;width:auto;display:block}
.brand a.product{text-decoration:none;cursor:pointer}
.brand a.product:hover{color:var(--teal)}
.brand .fallback{display:flex;flex-direction:column;line-height:1.05}
.brand .fallback b{color:var(--navy);font-size:19.2px;letter-spacing:.2px}
.brand .fallback span{color:var(--teal);font-size:13.2px;font-weight:600;text-transform:uppercase;letter-spacing:.6px}
.brand .divider{width:1px;height:34px;background:var(--line)}
.brand .product{color:var(--mut);font-size:15px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}
.nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.nav a{color:var(--ink);font-weight:600;font-size:16.8px;padding:8px 12px;border-radius:8px}
.nav a:hover{background:var(--bg);text-decoration:none}
.nav a.active{color:var(--blue)}
.nav .who{color:var(--mut);font-size:15.6px;margin-right:4px}
.nav-toggle{display:none;margin-left:auto;background:none;border:0;cursor:pointer;padding:6px;color:var(--navy);border-radius:8px}
.nav-toggle:hover{background:var(--bg)}
.nav-toggle svg{width:28px;height:28px;display:block}

/* collapse the nav into a hamburger before it can crowd the brand */
@media(max-width:900px){
  .nav-toggle{display:inline-flex}
  .nav{position:absolute;top:100%;left:0;right:0;margin:0;display:none;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-top:1px solid var(--line);box-shadow:0 14px 34px rgba(13,59,94,.14);padding:6px 0;z-index:60}
  .nav.open{display:flex}
  .nav a,.nav .who{width:100%;box-sizing:border-box;padding:13px 22px;border-radius:0;font-size:17px}
  .nav .btn{margin:8px 22px;justify-content:center}
}
@media(max-width:560px){ .brand .product,.brand .divider{display:none} }
.btn{display:inline-flex;align-items:center;gap:8px;border:0;cursor:pointer;font-weight:700;font-size:16.8px;
  padding:10px 16px;border-radius:9px;background:var(--blue);color:#fff;transition:.15s}
.btn:hover{background:var(--blue-dk);text-decoration:none}
.btn.gold{background:var(--gold);color:#3a2a00}
.btn.gold:hover{filter:brightness(.96)}
.btn.ghost{background:#fff;color:var(--blue);border:1.5px solid var(--blue)}
.btn.ghost:hover{background:#f0f6fb}
.btn.sm{padding:7px 12px;font-size:15.6px}
.btn.block{width:100%;justify-content:center}

/* ---------- hero (simple, used on interior pages) ---------- */
.hero{background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;padding:38px 0 42px}
.hero h1{margin:0 0 8px;font-size:33.6px;letter-spacing:.2px}
.hero p{margin:0;color:#d7e6f3;font-size:18px;max-width:680px}
.hero .pill{display:inline-block;background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.25);
  padding:4px 12px;border-radius:999px;font-size:14.4px;font-weight:700;letter-spacing:.4px;margin-bottom:14px}

/* ---------- feature strap ---------- */
.strap{background:var(--navy);color:#dceaf6}
.strap .wrap{display:flex;gap:34px;flex-wrap:wrap;justify-content:center;padding:13px 20px;font-size:16.2px;font-weight:600}
.strap .it{display:flex;align-items:center;gap:8px}
.strap .ck{color:#7fd4c4;font-weight:800}

/* ---------- showcase hero (homepage) ---------- */
.showcase{position:relative;overflow:hidden;
  background:
    linear-gradient(180deg,#eef5fb 0%, #e4eef8 60%, #dde9f5 100%);
}
.showcase::before{content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(#cfe0f0 1px,transparent 1px),linear-gradient(90deg,#cfe0f0 1px,transparent 1px);
  background-size:40px 40px;mask-image:radial-gradient(circle at 70% 35%,#000,transparent 75%);
  -webkit-mask-image:radial-gradient(circle at 70% 35%,#000,transparent 75%);}
.showcase .wrap{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  padding:54px 20px 60px}
.sc-pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:7px 15px;font-size:14.4px;font-weight:800;letter-spacing:.5px;color:var(--navy);
  box-shadow:var(--shadow);margin-bottom:20px}
.sc-pill .dot{width:9px;height:9px;border-radius:50%;background:var(--good)}
.sc-h1{font-size:55.2px;line-height:1.04;letter-spacing:-.5px;color:var(--navy);margin:0 0 18px;font-weight:800}
.sc-sub{font-size:20.4px;line-height:1.6;color:#3f5562;max-width:560px;margin:0 0 22px}
.sc-disc{font-weight:800;color:var(--blue);margin:0 0 22px;font-size:18px}
.sc-disc span{color:var(--mut);font-weight:600}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.btn.lg{padding:15px 26px;font-size:19.2px;border-radius:11px}
.sc-welcome{margin:16px 0 0;color:var(--mut);font-size:16.2px}

/* floating quiz mockup */
.mock{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;
  box-shadow:0 24px 60px rgba(13,59,94,.18),0 4px 14px rgba(13,59,94,.08);padding:22px 22px 24px;max-width:440px;margin-left:auto}
.mock .corner{position:absolute;top:-14px;right:18px;background:var(--navy);color:#fff;font-weight:800;font-size:14.4px;
  letter-spacing:.6px;padding:7px 16px;border-radius:999px;box-shadow:var(--shadow)}
.mock-head{display:flex;align-items:center;gap:9px;color:var(--mut);font-size:14.4px;font-weight:800;letter-spacing:.6px;margin-bottom:12px}
.mock-head .ic{width:22px;height:22px;border-radius:6px;background:#e8f1fb;display:flex;align-items:center;justify-content:center}
.mock-head .ct{margin-left:auto;color:var(--mut);font-weight:700;letter-spacing:0}
.mock-prog{height:6px;background:var(--line);border-radius:5px;overflow:hidden;margin-bottom:16px}
.mock-prog>span{display:block;height:100%;width:24%;background:var(--blue)}
.mock-q{font-size:21.6px;font-weight:700;color:var(--ink);margin-bottom:14px;line-height:1.4}
.mock-c{display:flex;align-items:center;gap:11px;border:1.5px solid var(--line);border-radius:11px;padding:12px 14px;
  margin-bottom:9px;color:#42525c;font-weight:600;font-size:17.4px}
.mock-c .rad{width:16px;height:16px;border-radius:50%;border:2px solid #c4d2dd}
.mock-c.correct{border-color:var(--good);background:var(--good-bg);color:var(--good)}
.mock-c.correct .rad{border:0;background:var(--good);position:relative}
.mock-c.correct .rad::after{content:"✓";color:#fff;font-size:13.2px;font-weight:900;position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.mock-badges{position:relative;margin-top:4px}
.float-badge{position:absolute;background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:9px 15px;font-size:15.6px;font-weight:800;box-shadow:0 8px 22px rgba(13,59,94,.14);display:flex;align-items:center;gap:7px}
.float-badge.a{left:-10px;bottom:-16px;color:var(--navy)}
.float-badge.b{right:-6px;bottom:-30px;color:var(--good)}
@media(max-width:860px){
  .showcase .wrap{grid-template-columns:1fr;gap:30px;padding:40px 20px}
  .sc-h1{font-size:40.8px}
  .mock{margin:0 auto}
  .float-badge.b{right:0}
}

/* ---------- section ---------- */
.section{padding:30px 0}
.section h2{font-size:22.8px;margin:0 0 4px;color:var(--navy)}
.section .sub{color:var(--mut);margin:0 0 18px;font-size:16.8px}
.grouphdr{display:flex;align-items:center;gap:10px;margin:26px 0 12px}
.grouphdr h3{margin:0;font-size:18px;color:var(--navy);text-transform:uppercase;letter-spacing:.6px}
.grouphdr .ln{flex:1;height:1px;background:var(--line)}

/* ---------- illustrated section banners ---------- */
.sec-banner{display:flex;align-items:center;gap:18px;border-radius:16px;padding:20px 24px;margin:32px 0 18px;
  color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}
.sec-banner.water{background:linear-gradient(120deg,#0d3b5e 0%,#1c6fb3 55%,#2a9fd6 100%)}
.sec-banner.ww{background:linear-gradient(120deg,#0e5a4f 0%,#1aa6a0 55%,#56c6a6 100%)}
.sec-banner.dist{background:linear-gradient(120deg,#3a2f7a 0%,#5b4bc4 55%,#7c6ff0 100%)}
.sec-banner.coll{background:linear-gradient(120deg,#5a4423 0%,#977c3e 55%,#c2a35a 100%)}

/* discipline chooser */
.chooser{text-align:center;margin:38px 0 10px}
.chooser h2{font-size:33.6px;color:var(--navy);margin:0 0 8px;letter-spacing:.2px}
.chooser .sub{color:var(--mut);font-size:18px;max-width:620px;margin:0 auto 26px;line-height:1.55}
.disc-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;text-align:left}
@media(max-width:720px){.disc-grid{grid-template-columns:1fr}}
.disc-card{display:block;background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 26px;
  text-decoration:none;color:inherit;transition:.15s;box-shadow:0 2px 8px rgba(13,59,94,.05)}
.disc-card:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(13,59,94,.13);border-color:#cfe0ee}
.disc-head{display:flex;align-items:center;gap:14px;margin-bottom:12px}
.disc-ic{flex:none;width:46px;height:46px;border-radius:11px;display:flex;align-items:center;justify-content:center}
.disc-ic svg{width:26px;height:26px;color:#fff}
.disc-ic.water{background:#1c6fb3}.disc-ic.ww{background:#1aa6a0}
.disc-ic.dist{background:#5b4bc4}.disc-ic.coll{background:#977c3e}
.disc-card h3{margin:0;font-size:22.8px;color:var(--navy)}
.disc-card p{margin:0 0 14px;color:#3f5562;font-size:16.5px;line-height:1.5}
.disc-go{font-weight:800;font-size:16px;color:var(--blue)}
.disc-card:hover .disc-go{text-decoration:underline}

/* mobile: hide the feature strap and the hero pill for a cleaner phone view */
@media(max-width:720px){
  .strap{display:none}
  .sc-pill{display:none}
}
.sec-banner::after{content:"";position:absolute;right:-30px;top:-40px;width:170px;height:170px;border-radius:50%;background:rgba(255,255,255,.09)}
.sec-banner::before{content:"";position:absolute;right:46px;bottom:-50px;width:110px;height:110px;border-radius:50%;background:rgba(255,255,255,.06)}
.sec-banner .sb-ic{flex:none;width:54px;height:54px;border-radius:50%;background:rgba(255,255,255,.2);
  display:flex;align-items:center;justify-content:center;position:relative;z-index:1}
.sec-banner .sb-ic svg{width:30px;height:30px;color:#fff}
.sec-banner .sb-tx{position:relative;z-index:1}
.sec-banner h3{margin:0;font-size:26.4px;color:#fff;letter-spacing:.3px}
.sec-banner p{margin:3px 0 0;color:rgba(255,255,255,.9);font-size:17.4px}

/* ---------- test cards ---------- */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media(max-width:680px){.cards{grid-template-columns:1fr}}
.tcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);
  padding:18px;display:flex;flex-direction:column}
.tcard .tag{display:inline-block;font-size:15px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;
  padding:4px 11px;border-radius:6px;margin-bottom:11px;width:max-content}
.tag.water{background:#e8f1fb;color:var(--blue-dk)}
.tag.ww{background:#e7f6f4;color:#0f7a74}
.tcard h4{margin:0 0 7px;font-size:25.2px;color:var(--ink)}
.tcard p{margin:0 0 15px;color:var(--mut);font-size:21.6px;line-height:1.5;flex:1}
.tcard .meta{display:flex;gap:14px;color:var(--mut);font-size:19.2px;margin-bottom:15px;flex-wrap:wrap}
.tcard .meta b{color:var(--ink)}
.tcard .actions{display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.tcard .actions-lbl{color:var(--ink);font-size:19.2px;font-weight:700}
.tcard .actions-btns{display:flex;gap:10px;flex-wrap:wrap}
.tcard .actions .btn{font-size:19.2px;padding:10px 20px;min-width:64px;justify-content:center}

/* ---------- generic card / table ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:20px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow)}
.stat .n{font-size:31.2px;font-weight:800;color:var(--navy);line-height:1}
.stat .l{color:var(--mut);font-size:15px;margin-top:6px;text-transform:uppercase;letter-spacing:.4px}
table{width:100%;border-collapse:collapse;font-size:16.8px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
th{color:var(--mut);font-size:13.8px;text-transform:uppercase;letter-spacing:.5px;font-weight:700}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.bar{height:8px;border-radius:5px;background:var(--line);overflow:hidden;min-width:90px}
.bar>span{display:block;height:100%;background:var(--teal)}
.score-pill{font-weight:800;padding:2px 10px;border-radius:999px;font-size:15.6px}
.score-pill.pass{background:var(--good-bg);color:var(--good)}
.score-pill.fail{background:var(--bad-bg);color:var(--bad)}

/* ---------- footer ---------- */
.foot{background:var(--navy);color:#cfe0ee;font-size:16px;padding:38px 0 22px;margin-top:44px}
.foot a{color:#cfe0ee;text-decoration:none}
.foot a:hover{color:#fff;text-decoration:underline}
.foot-inner{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.foot-cols{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:30px}
@media(max-width:720px){.foot-cols{grid-template-columns:1fr 1fr;gap:24px}}
.foot-col b{color:#fff;display:block;margin-bottom:10px;font-size:16.5px}
.foot-col a{display:block;margin:6px 0}
.foot-col p{margin:0 0 12px;color:#a9c4da;line-height:1.55;font-size:15px;max-width:320px}
.foot-bottom{margin-top:26px;padding-top:16px;border-top:1px solid rgba(255,255,255,.15);color:#a9c4da;text-align:center;font-size:14px}
.foot-bottom a{color:#cfe0ee}

/* homepage "why study with us" feature trio */
.why{text-align:center;padding:46px 0 8px}
.why h2{font-size:33.6px;color:var(--navy);margin:0 0 6px}
.why .sub{color:var(--mut);font-size:18px;margin:0 0 32px}
.why-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:34px}
@media(max-width:720px){.why-grid{grid-template-columns:1fr;gap:28px}}
.why-ic{color:var(--blue);margin-bottom:12px}
.why-ic svg{width:32px;height:32px}
.why-card h3{margin:0 0 8px;color:var(--navy);font-size:19.2px}
.why-card p{margin:0 auto;color:#3f5562;font-size:16.5px;line-height:1.55;max-width:330px}
.demo-flag{background:var(--gold);color:#3a2a00;font-weight:800;font-size:13.2px;letter-spacing:.5px;padding:3px 10px;border-radius:6px}

/* ---------- auth ---------- */
.auth-wrap{max-width:420px;margin:6vh auto;padding:0 20px}
.auth-card{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:30px 28px}
.auth-card h1{margin:0 0 4px;font-size:25.2px;color:var(--navy);text-align:center}
.auth-card .sub{color:var(--mut);text-align:center;margin:0 0 22px;font-size:16.2px}
.field{margin-bottom:14px}
.field label{display:block;font-weight:600;font-size:15.6px;margin-bottom:5px;color:var(--ink)}
.field input{width:100%;padding:11px 12px;border:1.5px solid var(--line);border-radius:9px;font-size:16.8px}
.field input:focus{outline:none;border-color:var(--blue)}
.muted{color:var(--mut);font-size:15px}
.center{text-align:center}
.hr-or{display:flex;align-items:center;gap:10px;color:var(--mut);font-size:14.4px;margin:16px 0}
.hr-or::before,.hr-or::after{content:"";flex:1;height:1px;background:var(--line)}

/* ---------- quiz ---------- */
.quiz-top{display:flex;align-items:center;gap:16px;margin-bottom:8px}
.quiz-top h1{font-size:21.6px;margin:0;color:var(--navy)}
.qprogress{height:8px;background:var(--line);border-radius:5px;overflow:hidden;margin:14px 0 22px}
.qprogress>span{display:block;height:100%;background:var(--blue);transition:width .25s}
.qbox{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}
.qnum{color:var(--mut);font-size:15.6px;font-weight:700;margin-bottom:8px}
.qtext{font-size:20.4px;font-weight:600;margin-bottom:18px;line-height:1.5}
.choice{display:flex;gap:12px;align-items:flex-start;border:1.5px solid var(--line);border-radius:10px;
  padding:13px 15px;margin-bottom:10px;cursor:pointer;transition:.12s;background:#fff}
.choice:hover{border-color:var(--blue);background:#f7fbfe}
.choice .ltr{font-weight:800;color:var(--blue);min-width:18px}
.choice.sel{border-color:var(--blue);background:#eef6fc}
.choice.correct{border-color:var(--good);background:var(--good-bg)}
.choice.wrong{border-color:var(--bad);background:var(--bad-bg)}
.explain{margin-top:14px;padding:13px 15px;background:var(--bg);border-left:3px solid var(--teal);border-radius:8px;
  font-size:16.2px;color:#33474f;display:none}
.explain.show{display:block}
.qnav{display:flex;justify-content:space-between;margin-top:20px;gap:10px}
.result-hero{text-align:center;padding:18px 0}
.result-hero .big{font-size:62.4px;font-weight:800;color:var(--navy);line-height:1}
.result-hero .lbl{color:var(--mut);margin-top:6px}

@media(max-width:640px){
  .hero h1{font-size:27.6px}
  .card{overflow-x:auto}
  .stat-row{grid-template-columns:1fr 1fr}
}