:root{
  --blue:#0C8FC4;
  --blue-dark:#0A76A2;
  --blue-deep:#0B3C55;
  --blue-tint:#E7F4FA;
  --slate:#58595B;
  --ink:#1F2933;
  --line:#D9E2E9;
  --bg:#FFFFFF;
  --bg-alt:#F3F8FB;
  --green:#2E7D32;
  --green-tint:#E8F4EA;
  --red:#C62828;
  --red-tint:#FBEAEA;
  --amber:#F9A825;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px}
h1,h2,h3,h4{font-family:'Barlow Semi Condensed',Arial,sans-serif;color:var(--blue-deep);line-height:1.15;font-weight:700}
a{color:var(--blue)}
a:focus-visible,button:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
section{padding:64px 0}
.section-alt{background:var(--bg-alt)}
h1{font-size:44px}
h2{font-size:32px;margin-bottom:14px}
.lead{font-size:18px;color:var(--slate);max-width:740px}
.eyebrow{font-family:'Barlow Semi Condensed',Arial,sans-serif;font-weight:600;font-size:14px;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);margin-bottom:10px}

/* Header */
header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.topbar{background:var(--blue-deep);color:#fff;font-size:13.5px;padding:6px 0}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.topbar a{color:#fff;text-decoration:none}
.topbar a:hover{text-decoration:underline}
.navbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:11px 0}
.brand{display:block;text-decoration:none;flex:none}
.brand img{display:block;height:56px;width:auto}
.footer-logo{display:block;height:44px;width:auto;margin-bottom:14px}
nav.mainnav{display:flex;gap:20px;align-items:center}
nav.mainnav a{text-decoration:none;color:var(--blue-deep);font-weight:500;font-size:15px}
nav.mainnav a:hover,nav.mainnav a.on{color:var(--blue)}
.nav-user{color:var(--slate);font-size:14px;border-left:1px solid var(--line);padding-left:16px}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 12px;font-size:15px;cursor:pointer;color:var(--blue-deep)}

/* Buttons */
.btn{display:inline-block;font-family:'Barlow Semi Condensed',Arial,sans-serif;font-weight:600;font-size:17px;letter-spacing:.02em;padding:11px 22px;border-radius:8px;text-decoration:none;cursor:pointer;border:2px solid transparent;transition:background .15s,color .15s,border-color .15s;background:none}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-dark)}
.btn-outline{border-color:var(--blue-deep);color:var(--blue-deep)}
.btn-outline:hover{background:var(--blue-deep);color:#fff}
.btn-white{background:#fff;color:var(--blue-deep)}
.btn-white:hover{background:var(--blue-tint)}
.btn-ghost{border-color:var(--line);color:var(--blue-deep)}
.btn-ghost:hover{border-color:var(--blue-deep)}
.btn-danger{background:var(--red);color:#fff}
.btn-sm{font-size:14px;padding:6px 12px}
.btn[disabled]{opacity:.4;cursor:not-allowed}

/* Hero */
.hero{background:linear-gradient(180deg,var(--blue-deep) 0%,#0E4A68 100%);color:#fff;padding:70px 0 78px}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero h1{color:#fff;margin-bottom:16px;font-size:48px}
.hero h1 .mark{color:#6FD0F5}
.hero-intro{font-size:18px;color:#CFE7F3;max-width:540px;margin-bottom:26px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero-note{margin-top:16px;font-size:14px;color:#9DC4D8}
.hero-note a{color:#fff}
.facts-card{background:#fff;color:var(--ink);border-radius:14px;padding:24px 24px 20px;box-shadow:0 18px 44px rgba(0,0,0,.35)}
.facts-card h3{font-size:14px;letter-spacing:.12em;text-transform:uppercase;color:var(--slate);font-weight:600;margin-bottom:14px;border-bottom:1px solid var(--line);padding-bottom:10px}
.facts-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 18px}
.fact .num{font-family:'Barlow Semi Condensed',Arial,sans-serif;font-weight:700;font-size:30px;color:var(--blue-deep);line-height:1}
.fact .lbl{font-size:13px;color:var(--slate);margin-top:3px}
.facts-foot{font-size:12.5px;color:var(--slate);margin-top:14px;border-top:1px solid var(--line);padding-top:10px}

/* Feature cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:34px}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px 24px 26px}
.card-head{display:flex;align-items:center;gap:14px;margin-bottom:12px}
.card-head h3{font-size:20px;margin:0;line-height:1.2}
.card p{color:var(--slate);font-size:15px;margin:0}
.card .ico{flex:none;width:44px;height:44px;border-radius:10px;background:var(--blue-tint);color:var(--blue);display:inline-flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;font-family:'Barlow Semi Condensed',Arial,sans-serif;line-height:1}

/* Price */
.price-card{background:#fff;border:2px solid var(--blue);border-radius:14px;padding:30px;max-width:440px;box-shadow:0 10px 30px rgba(11,60,85,.10)}
.price{font-family:'Barlow Semi Condensed',Arial,sans-serif;font-weight:700;font-size:54px;color:var(--blue-deep);line-height:1}
.price-per{color:var(--slate);font-size:15px}
.includes{list-style:none;margin:18px 0 22px}
.includes li{padding:9px 0 9px 30px;position:relative;border-bottom:1px solid var(--line);font-size:15px}
.includes li:last-child{border-bottom:none}
.includes li::before{content:"\2713";position:absolute;left:0;top:8px;color:var(--green);font-weight:700}
.note-box{background:var(--blue-tint);border-left:4px solid var(--blue);border-radius:0 8px 8px 0;padding:12px 16px;font-size:14px;margin:18px 0}

/* Forms */
.form-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px;max-width:440px}
.form-card label{display:block;font-weight:600;font-size:14px;margin:14px 0 5px;color:var(--blue-deep)}
.form-card input,.form-card select{width:100%;padding:11px 12px;border:1.5px solid var(--line);border-radius:8px;font-size:15px;font-family:'Inter',Arial,sans-serif}
.form-card input:focus{border-color:var(--blue);outline:none}
.form-actions{margin-top:20px}
.alert{border-radius:8px;padding:12px 16px;font-size:14.5px;margin-bottom:16px}
.alert-err{background:var(--red-tint);border:1px solid #EBB7B7;color:#7A1F1F}
.alert-ok{background:var(--green-tint);border:1px solid #BFDCC4;color:#1E5B26}
.alert-warn{background:#FDF3DC;border:1px solid #EED9A4;color:#6B5313}

/* Tables */
.tbl{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:14.5px}
.tbl th{background:var(--blue-deep);color:#fff;text-align:left;padding:10px 12px;font-family:'Barlow Semi Condensed',Arial,sans-serif;font-weight:600;font-size:14px;letter-spacing:.03em}
.tbl td{padding:10px 12px;border-top:1px solid var(--line);vertical-align:middle}
.tbl tr:nth-child(even) td{background:var(--bg-alt)}
.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12.5px;font-weight:600}
.pill-ok{background:var(--green-tint);color:var(--green)}
.pill-bad{background:var(--red-tint);color:var(--red)}
.pill-warn{background:#FDF3DC;color:#8A6A14}

/* Dashboard set cards */
.set-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:26px}
.set-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px}
.set-card h3{font-size:20px}
.set-meta{color:var(--slate);font-size:14px;margin:8px 0 14px}

/* ---------------- Exam interface ---------------- */
.exam-shell{max-width:900px;margin:26px auto 60px;padding:0 16px}
.exam-top{background:var(--blue-deep);color:#fff;border-radius:12px 12px 0 0;display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 18px;flex-wrap:wrap}
.exam-top .who{font-size:13px;color:#BBD9E8}
.exam-top .who strong{color:#fff;font-size:14px}
.exam-timer{font-family:'Barlow Semi Condensed',Arial,sans-serif;font-weight:700;font-size:22px;letter-spacing:.05em;background:rgba(255,255,255,.14);border-radius:8px;padding:3px 14px}
.exam-timer.low{background:var(--red)}
.exam-progress{height:6px;background:#E4ECF1}
.exam-progress .bar{height:100%;width:0;background:var(--red);transition:width .2s}
.exam-body{background:#fff;border:1px solid var(--line);border-top:none;border-radius:0 0 12px 12px;padding:26px 28px 28px}
.qcount{font-size:13px;color:var(--slate);letter-spacing:.06em;text-transform:uppercase;font-weight:600}
.qtools{display:flex;gap:10px;justify-content:space-between;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.qtools .right{display:flex;gap:8px;flex-wrap:wrap}
.tool-btn{border:1.5px solid var(--line);background:#fff;border-radius:8px;padding:7px 12px;font-size:14px;cursor:pointer;color:var(--blue-deep);font-family:'Inter',Arial,sans-serif}
.tool-btn:hover{border-color:var(--blue)}
.tool-btn.on{background:var(--amber);border-color:var(--amber);color:#3D2E00;font-weight:600}
.tool-btn.speak-on{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:600}
.qtext{font-size:22px;font-weight:600;color:var(--blue-deep);margin:6px 0 18px;font-family:'Barlow Semi Condensed',Arial,sans-serif;line-height:1.3}
.opts{display:grid;gap:10px;margin-bottom:24px}
.opt{text-align:left;background:#fff;border:2px solid var(--line);border-radius:10px;padding:13px 16px;font-size:20px;cursor:pointer;font-family:'Inter',Arial,sans-serif;color:var(--ink);display:flex;gap:12px;align-items:flex-start}
.opt .letter{font-family:'Barlow Semi Condensed',Arial,sans-serif;font-weight:700;color:var(--blue);min-width:22px}
.opt:hover{border-color:var(--blue)}
.opt.sel{border-color:var(--blue);background:var(--blue-tint);font-weight:600}
.exam-nav{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:18px}
.exam-nav .right{display:flex;gap:10px;margin-left:auto}

/* Review grid */
.review-overlay{position:fixed;inset:0;background:rgba(11,60,85,.55);display:none;align-items:center;justify-content:center;z-index:100;padding:20px}
.review-overlay.open{display:flex}
.review-box{background:#fff;border-radius:12px;padding:24px;max-width:560px;width:100%}
.review-box h3{margin-bottom:6px}
.review-key{font-size:13px;color:var(--slate);margin-bottom:14px}
.review-key span{display:inline-block;width:12px;height:12px;border-radius:3px;margin:0 4px 0 12px;vertical-align:middle}
.rg{display:grid;grid-template-columns:repeat(8,1fr);gap:8px}
.rg button{border:none;border-radius:8px;padding:10px 0;font-weight:700;font-size:15px;cursor:pointer;color:#fff;font-family:'Barlow Semi Condensed',Arial,sans-serif}
.rg .answered{background:var(--green)}
.rg .unanswered{background:var(--red)}
.rg .flagged{background:var(--amber);color:#3D2E00}
.review-close{margin-top:16px;text-align:right}

/* Results */
.result-band{border-radius:12px;padding:22px 24px;margin-bottom:22px}
.result-band.pass{background:var(--green-tint);border:1px solid #BFDCC4}
.result-band.fail{background:var(--red-tint);border:1px solid #EBB7B7}
.result-band h2{margin-bottom:4px}
.result-band.pass h2{color:var(--green)}
.result-band.fail h2{color:var(--red)}
.review-item{border-top:1px solid var(--line);padding:14px 0}
.review-item .rq{font-weight:600;color:var(--blue-deep);margin-bottom:5px}
.review-item .ra{font-size:14.5px}
.ra .ok{color:var(--green);font-weight:600}
.ra .bad{color:var(--red);font-weight:600}

/* Admin */
.admin-head{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:10px 0 26px}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}
.stat .n{font-family:'Barlow Semi Condensed',Arial,sans-serif;font-weight:700;font-size:32px;color:var(--blue)}
.stat .t{font-size:13px;color:var(--slate)}
.inline-form{display:inline}

/* Footer */
footer{background:var(--blue-deep);color:#AFCBDA;padding:42px 0 28px;font-size:14px}
footer .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:34px;margin-bottom:26px}
footer h4{color:#fff;font-size:16px;margin-bottom:12px}
footer a{color:#D5E8F1;text-decoration:none}
footer a:hover{color:#fff;text-decoration:underline}
footer ul{list-style:none}
footer li{margin-bottom:8px}
.legal{border-top:1px solid rgba(255,255,255,.14);padding-top:18px;font-size:12.5px;line-height:1.7}

@media (max-width:960px){
  .hero .wrap{grid-template-columns:1fr}
  .hero h1{font-size:38px}
  .cards,.set-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
  footer .cols{grid-template-columns:1fr}
  nav.mainnav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:10px 20px 18px;gap:0}
  nav.mainnav.open{display:flex}
  nav.mainnav a{padding:12px 0;border-bottom:1px solid var(--line)}
  nav.mainnav .btn{margin-top:14px;text-align:center;border-bottom:none}
  .nav-user{border-left:none;padding:12px 0 0}
  .nav-toggle{display:block}
  .navbar{position:relative}
  .brand img{height:42px}
  .footer-logo{height:38px}
  section{padding:50px 0}
  h1{font-size:34px}
  h2{font-size:27px}
  .rg{grid-template-columns:repeat(6,1fr)}
  .exam-body{padding:20px 16px 24px}
  .qtext{font-size:20px}
  .opt{font-size:18px}
}

/* Multi-answer questions and tags */
.multi-note{background:var(--blue-tint);border-left:4px solid var(--blue);border-radius:0 8px 8px 0;padding:9px 14px;font-size:14.5px;margin:-6px 0 16px;color:var(--blue-deep)}
.tag-multi{display:inline-block;background:var(--blue-tint);color:var(--blue-dark);border-radius:999px;padding:1px 9px;font-size:12px;font-weight:600;vertical-align:middle;margin-left:6px}
code{background:var(--bg-alt);border:1px solid var(--line);border-radius:5px;padding:1px 6px;font-size:13.5px}

/* Knowledge of Language and Life section */
.koll-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 44px;margin-top:30px}
.koll-col h3{font-size:20px;margin-bottom:10px}
.koll-col h3+ul{margin-bottom:26px}
.koll-list{list-style:none;margin:0}
.koll-list li{position:relative;padding:7px 0 7px 26px;font-size:15.5px;color:var(--slate);border-bottom:1px solid var(--line)}
.koll-list li:last-child{border-bottom:none}
.koll-list li::before{content:"";position:absolute;left:2px;top:15px;width:8px;height:8px;border-radius:2px;background:var(--blue)}
.koll-list li strong{color:var(--blue-deep)}
.koll-change{background:#fff;border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:0 12px 12px 0;padding:24px 26px;margin-top:14px}
.koll-change h3{font-size:20px;margin-bottom:8px}
.koll-cta{margin-top:20px}
.koll-note{font-size:13.5px;color:var(--slate);line-height:1.75;margin-top:22px;max-width:900px}
@media (max-width:960px){
  .koll-grid{grid-template-columns:1fr;gap:0}
  .koll-change{border-radius:0 10px 10px 0;padding:20px}
  .koll-cta .btn{display:block;text-align:center}
  .koll-cta .btn+.btn{margin:10px 0 0 0 !important}
}
.cards.two-up{grid-template-columns:1fr 1fr}
@media (max-width:960px){.cards.two-up{grid-template-columns:1fr}}