/* PassOnFirst — test-center screen design.
   The quiz looks like calm test software, because all three exams are taken on a computer.
   Credibility comes from the source tag under every answer and an honest "exam day" panel. */
:root{
  --bg:#EEF1F5; --card:#fff; --ink:#1D2633; --ink-soft:#566174; --line:#D5DBE4; --line-soft:#EDF0F4;
  --accent:#1F5FBF; --accent-ink:#1A4FA0; --accent-tint:#EAF1FC;
  --good:#1E8A4C; --good-tint:#E6F4EC; --good-line:#BFE0CC;
  --bad:#C8382C; --bad-tint:#FBEAE8; --bad-line:#EEC9C4;
  --bar:#26303D; --bar-ink:#DCE3EC;
  --tag:#FFF2C4; --tag-line:#EBD38A; --tag-edge:#E2A714; --tag-ink:#4A3B12;
  --ui:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --pen:"Nanum Pen Script","Bradley Hand","Segoe Print",cursive;
  --shadow:0 1px 2px rgba(29,38,51,.06),0 16px 40px -20px rgba(29,38,51,.28);
  --wrap:1120px; --ease:cubic-bezier(.16,1,.3,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:16px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--ui);font-size:17px;line-height:1.5;accent-color:var(--accent)}
::selection{background:#CFE0FA}
a{color:inherit;text-underline-offset:4px;text-decoration-thickness:1.5px}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}
[tabindex="-1"]:focus{outline:none}
[hidden]{display:none!important}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
h1,h2,h3{text-wrap:balance}
p{text-wrap:pretty}

/* top bar */
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 0}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:-.01em;text-decoration:none}
.brand i{flex:none;width:26px;height:26px;border-radius:7px;background:var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat}
.bar .mini{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:9px 14px;font-weight:600;font-size:15px;cursor:pointer;white-space:nowrap}
.bar .mini:hover{border-color:#B9C3D0}

/* opening: headline + exam day panel */
.open{display:grid;grid-template-columns:1fr;gap:10px;align-items:center;padding:8px 0 28px}
.open:has(> .day){grid-template-columns:1.25fr .75fr;gap:40px}
.eyebrow{margin:0 0 10px;font-family:var(--mono);font-size:13.5px;color:var(--accent-ink)}
.open h1{font-size:clamp(32px,4.4vw,52px);line-height:1.06;letter-spacing:-.025em;font-weight:700;margin:0 0 16px;max-width:17ch}
.open > p{margin:0;font-size:19px;color:var(--ink-soft);max-width:50ch}
.facts{display:flex;flex-wrap:wrap;gap:6px 18px;margin:0;padding:0;list-style:none;color:var(--ink-soft);font-size:15.5px}
.facts li{display:inline-flex;align-items:center;gap:7px}
.facts li::before{content:"";width:16px;height:16px;flex:none;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5' fill='none' stroke='%231E8A4C' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat}
.day{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.day h2{margin:0 0 10px;font-size:15.5px;font-weight:700}
.day ul{margin:0;padding:0;list-style:none;display:grid;gap:8px;font-size:15px;color:var(--ink-soft)}
.day li{display:grid;grid-template-columns:22px 1fr;gap:8px}
.day li span{font-family:var(--mono);font-size:13px;color:var(--accent);padding-top:2px}
.day p{margin:12px 0 0;font-size:13.5px;color:var(--ink-soft)}
.day-m{display:none}
.more .day h2{font-size:15.5px;line-height:1.3;letter-spacing:0;margin:0 0 10px;max-width:none}

/* the quiz: a calm test screen */
.booklet{display:flex;flex-direction:column;max-width:880px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);overflow:hidden;padding-bottom:26px}
.sheet{display:flex;align-items:center;gap:18px;background:var(--bar);color:#fff;padding:12px 18px;margin-bottom:24px}
.sheet h2{margin:0;font-size:14px;font-weight:600;color:var(--bar-ink);white-space:nowrap}
.sheet .rows{flex:1;display:flex;gap:5px;justify-content:center}
.sheet .tot{display:none}
.timer{font-family:var(--mono);font-size:14px;color:var(--bar-ink);white-space:nowrap}
.timer b{color:#fff;font-weight:600}
.row{width:26px;height:26px;border-radius:5px;background:rgba(255,255,255,.12);display:grid;place-items:center}
.row .n{font-family:var(--mono);font-size:12px;color:#B9C3D0}
.row .b,.row .mark{display:none}
.row.is-now{background:transparent;box-shadow:inset 0 0 0 2px #fff}
.row.is-now .n{color:#fff}
.row.is-ok{background:#2F9E5F}
.row.is-no{background:#D24B3F}
.row.is-ok .n,.row.is-no .n{color:#fff}
#stage{display:flex;flex-direction:column;padding:0 32px;min-width:0}
.q-meta{display:flex;flex-wrap:wrap;gap:4px 12px;align-items:center;font-size:14px;color:var(--ink-soft);margin-bottom:10px}
.q-meta b{color:var(--ink);font-family:var(--mono);font-weight:600}
.q-meta span{background:var(--line-soft);border-radius:6px;padding:2px 9px;font-size:13px;font-weight:500}
.q-text{font-size:clamp(20px,2.3vw,25px);line-height:1.42;font-weight:500;margin:0 0 20px}
.opts{display:grid;gap:10px;margin:0;padding:0;list-style:none}
.opt{display:flex;gap:14px;align-items:center;width:100%;min-height:56px;text-align:left;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 16px;cursor:pointer;font-size:17.5px;line-height:1.35;transition:border-color .15s,background .15s}
.opt:hover:not([disabled]){border-color:var(--accent);background:var(--accent-tint)}
.opt[disabled]{cursor:default}
.bub{flex:none;width:28px;height:28px;border-radius:50%;border:2px solid #9AA6B6;color:var(--ink-soft);font-family:var(--mono);font-size:12.5px;font-weight:600;display:grid;place-items:center;background:var(--card);transition:all .15s}
.opt:hover:not([disabled]) .bub{border-color:var(--accent);color:var(--accent-ink)}
.opt.is-right{border-color:var(--good);background:var(--good-tint)}
.opt.is-right .bub{background:var(--good);border-color:var(--good);color:#fff}
.opt.is-wrong{border-color:var(--bad);background:var(--bad-tint)}
.opt.is-wrong .bub{background:var(--bad);border-color:var(--bad);color:#fff}
.opt[disabled]:not(.is-right):not(.is-wrong){opacity:.55}
.fill-in{animation:pop .3s var(--ease)}
@keyframes pop{from{transform:scale(.6)}to{transform:scale(1)}}
.pen-mark{fill:none;stroke:currentColor;stroke-width:2.8;stroke-linecap:round;stroke-linejoin:round}
.keys{margin:14px 0 0;font-size:13.5px;color:var(--ink-soft)}
.why{margin:16px 0 0;padding:16px 18px;border-radius:10px;background:var(--good-tint);border:1px solid var(--good-line)}
.why.bad{background:var(--bad-tint);border-color:var(--bad-line)}
.why h3{display:flex;gap:10px;align-items:center;margin:0 0 6px;font-size:17px;color:var(--good)}
.why.bad h3{color:var(--bad)}
.why h3 .pen-mark{width:22px;height:22px;flex:none}
.why p{margin:0;font-size:16.5px;line-height:1.55}
/* the source as a code-book tab */
.why small{display:inline-flex;align-items:center;gap:8px;margin-top:12px;font-family:var(--mono);font-size:13px;line-height:1.35;color:var(--tag-ink);background:var(--tag);border:1px solid var(--tag-line);border-left:6px solid var(--tag-edge);border-radius:4px 8px 8px 4px;padding:6px 10px}
.why small::before{content:"";width:16px;height:14px;flex:none;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 14'%3E%3Cpath d='M1 2c2.5-1 5-1 7 .8C10 1 12.5 1 15 2v10.5c-2.5-1-5-1-7 .8-2-1.8-4.5-1.8-7-.8z' fill='none' stroke='%234A3B12' stroke-width='1.4' stroke-linejoin='round'/%3E%3Cpath d='M8 2.8v10.5' stroke='%234A3B12' stroke-width='1.4'/%3E%3C/svg%3E") center/contain no-repeat}
.next,.hold{border:0;border-radius:8px;background:var(--accent);color:#fff;min-height:52px;padding:13px 26px;font-weight:600;font-size:17px;cursor:pointer;transition:background .15s}
.next:hover,.hold:hover{background:var(--accent-ink)}
.next{align-self:flex-end;margin-top:16px;min-width:200px}

/* result: a score report */
.result .graded{display:grid;grid-template-columns:auto 1fr;grid-template-areas:"score head" "score say";column-gap:24px;align-items:center}
.score{grid-area:score;position:relative;border-radius:10px;background:var(--accent-tint);padding:24px 20px 14px;text-align:center}
.score::before{content:"Score";position:absolute;top:7px;left:0;right:0;font-family:var(--mono);font-size:12px;color:var(--accent-ink)}
.score .pen{font-family:var(--mono);font-weight:600;font-size:44px;line-height:1;color:var(--accent-ink)}
.score .of{font-size:22px}
.ring{display:none}
.graded h2{grid-area:head;align-self:end;font-size:clamp(28px,4vw,40px);line-height:1.06;letter-spacing:-.02em;margin:0 0 8px}
.graded .say{grid-area:say;align-self:start;margin:0;font-size:17px;line-height:1.5;color:var(--ink-soft);max-width:36em}
.pace{margin:20px 0 0;padding:12px 14px;border-radius:10px;background:var(--line-soft);font-size:15px;color:var(--ink-soft)}
.pace b{color:var(--ink);font-family:var(--mono);font-weight:600}
.result .sub{margin:28px 0 4px;font-family:var(--mono);font-size:13px;font-weight:600;color:var(--ink-soft)}
.topics{list-style:none;margin:0;padding:0}
.topics li{display:grid;grid-template-columns:1fr auto 40px;gap:12px;align-items:center;padding:10px 0;border-bottom:1px dashed var(--line);font-size:16px}
.topics .r{font-family:var(--mono);font-weight:600;white-space:nowrap}
.topics .m{text-align:center;color:var(--bad);font-weight:600}
.topics .m .pen-mark{width:20px;height:20px;color:var(--good);vertical-align:middle}
.topics .start{display:inline-block;margin-left:10px;font-size:12.5px;font-weight:600;color:#fff;background:var(--bad);border-radius:5px;padding:2px 8px;white-space:nowrap;vertical-align:2px}
.note{margin:28px 0 22px;padding:16px 18px;border-radius:10px;background:#FBFAF6;border:1px solid #E8E2D2}
.note blockquote{margin:0}
.note p{margin:0;font-size:16px;line-height:1.55}
.note figcaption{margin-top:6px;font-family:var(--pen);font-size:34px;line-height:1}

/* offer */
.offer{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px 24px 20px;box-shadow:var(--shadow)}
.offer h3{margin:0 0 12px;font-size:22px;line-height:1.2;letter-spacing:-.01em}
.pts{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:9px}
.pts li{position:relative;padding-left:28px;line-height:1.45}
.pts li::before{content:"";position:absolute;left:0;top:.2em;width:18px;height:18px;border-radius:50%;background:var(--good) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat}
.buy{display:inline-flex;align-items:center;justify-content:center;min-height:54px;background:var(--accent);color:#fff;border:0;border-radius:8px;padding:14px 26px;font-weight:700;font-size:17px;cursor:pointer;transition:background .15s}
.buy:hover{background:var(--accent-ink)}
.fine{margin:10px 0 0;font-size:14px;color:var(--ink-soft)}
.offer.is-quiet{box-shadow:none;padding:22px}
.offer.is-quiet h3{font-size:19px;margin-bottom:6px}
.offer .line{margin:0 0 16px;color:var(--ink-soft)}
.buy.is-quiet{background:var(--card);color:var(--accent-ink);border:1px solid var(--accent);min-height:48px;font-size:16px;padding:11px 20px}
.buy.is-quiet:hover{background:var(--accent-tint)}
.again{background:none;border:0;padding:8px 0;margin-top:18px;text-decoration:underline;text-underline-offset:5px;cursor:pointer;color:var(--ink-soft)}
.again:hover{color:var(--ink)}

/* early access slip */
.early{scroll-margin-top:84px}
.early h3{margin:0 0 8px;font-size:clamp(24px,3vw,30px);line-height:1.1;letter-spacing:-.02em}
.early .lead{margin:0 0 18px;font-size:17px;line-height:1.5;color:var(--ink-soft)}
.slip{display:grid;grid-template-columns:190px minmax(0,1fr);background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.stub{display:flex;flex-direction:column;gap:2px;padding:22px 20px;background:var(--accent-tint);border-right:2px dashed var(--line)}
.stub-k{font-size:14px;font-weight:600;color:var(--accent-ink)}
.stub-p{font-family:var(--mono);font-size:50px;line-height:1;font-weight:600;letter-spacing:-.03em;margin:6px 0 4px}
.stub-x{font-size:14px;color:var(--ink-soft)}
.slip form{display:grid;gap:8px;padding:20px 22px 18px}
.slip .field,.when legend{font-weight:600;font-size:15px}
.slip input[type=email]{font:inherit;font-size:17px;min-height:50px;padding:12px 14px;border:1px solid #B9C3D0;border-radius:8px;background:var(--card);width:100%;margin-bottom:8px}
.slip input[type=email]::placeholder{color:#7A8494}
.slip input[aria-invalid=true]{border-color:var(--bad)}
.when{border:0;margin:0 0 6px;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:8px}
.when legend{padding:0;margin-bottom:8px}
.pick{position:relative;display:flex;gap:10px;align-items:center;min-height:48px;padding:8px 12px;border:1px solid var(--line);border-radius:8px;font-size:15px;line-height:1.25;cursor:pointer}
.pick input{position:absolute;opacity:0;width:1px;height:1px}
.pick .dot{flex:none;width:18px;height:18px;border-radius:50%;border:2px solid #9AA6B6;background:var(--card)}
.pick:hover{border-color:#B9C3D0}
.pick:has(input:checked){border-color:var(--accent);background:var(--accent-tint)}
.pick input:checked + .dot{border:6px solid var(--accent)}
.pick:has(input:focus-visible){outline:3px solid var(--accent);outline-offset:2px}
.hold{margin-top:4px}
.hold[disabled]{opacity:.7;cursor:progress}
.slip .fine{margin:2px 0 0}
.err{color:var(--bad);font-weight:600;font-size:15px;margin:-4px 0 8px}
.held{padding:24px 22px;display:flex;flex-direction:column;align-items:flex-start;gap:12px;justify-content:center}
.held p{margin:0;font-size:17px;line-height:1.5}
.held .stamp{font-family:var(--mono);font-weight:600;color:var(--good);font-size:16px;background:var(--good-tint);border:1px solid var(--good-line);border-radius:999px;padding:5px 14px}

/* below the quiz */
.more{max-width:var(--wrap);margin:0 auto;padding:56px 0 24px}
.more h2{font-size:clamp(25px,3.2vw,32px);line-height:1.12;letter-spacing:-.02em;margin:0 0 14px;max-width:24ch}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.more p{max-width:60ch;color:var(--ink-soft)}
.faq{padding-top:24px}
details{border-bottom:1px solid var(--line);max-width:70ch}
summary{list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:center;padding:16px 0;cursor:pointer;font-weight:600;font-size:18px;line-height:1.3}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--mono);font-size:22px;font-weight:500;color:var(--accent);transition:transform .2s}
details[open] summary::after{transform:rotate(45deg)}
details p{margin:0 0 18px}
footer{margin-top:32px;padding:28px 0 48px;font-size:14.5px;color:var(--ink-soft);border-top:1px solid var(--line)}
footer p{max-width:80ch;margin:0 0 8px}
footer .links{display:flex;flex-wrap:wrap;gap:6px 18px;margin-top:10px}
footer a:hover{color:var(--ink)}

/* hub page */
.hub{display:grid;gap:12px;padding:8px 0 64px;max-width:44em}
.hub a{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:20px 22px;background:var(--card);border:1px solid var(--line);border-radius:12px;text-decoration:none;transition:border-color .15s}
.hub a:hover{border-color:var(--accent)}
.hub b{font-size:21px;letter-spacing:-.01em}
.hub span{font-family:var(--mono);font-size:14px;color:var(--ink-soft);text-align:right}

/* policy pages */
.doc{max-width:68ch;padding:8px 0 24px}
.doc h1{font-size:clamp(30px,5vw,44px);line-height:1.08;letter-spacing:-.02em;margin:28px 0 6px}
.doc h2{font-size:21px;margin:30px 0 6px}
.doc p,.doc li{font-size:17px;line-height:1.6}
.doc .date{color:var(--ink-soft);font-size:15px}

@media (max-width:820px){
  body{font-size:16.5px}
  .wrap{padding:0 16px}
  .open,.open:has(> .day){grid-template-columns:1fr;gap:12px;padding:0 0 18px}
  .open:not(:has(> .day)){gap:6px}
  .eyebrow{font-size:12.5px;margin-bottom:6px}
  .open h1{font-size:29px;margin-bottom:10px}
  .open > p{font-size:17px}
  .facts{font-size:14px;gap:4px 14px}
  .open .day{display:none}
  .day-m{display:block;margin:0 0 32px}
  .booklet{margin:0 -4px;padding-bottom:20px}
  .sheet{gap:10px;padding:10px 12px;margin-bottom:18px}
  .sheet h2{display:none}
  .sheet .rows{gap:3px;justify-content:flex-start}
  .row{width:auto;flex:1;height:24px;border-radius:4px}
  .row .n{font-size:10.5px}
  .timer{font-size:12.5px}
  .timer span{display:none}
  #stage{padding:0 16px}
  .keys{display:none}
  .opt{font-size:17px;padding:11px 13px}
  .next{align-self:stretch}
  /* after answering, the explanation and Next slide up from the bottom */
  #stage .why{position:fixed;left:0;right:0;bottom:0;z-index:40;margin:0;border:0;border-top:1px solid var(--line);border-radius:16px 16px 0 0;padding:18px 18px calc(90px + env(safe-area-inset-bottom));max-height:64vh;overflow:auto;box-shadow:0 -12px 30px -12px rgba(29,38,51,.35);animation:sheetup .3s var(--ease)}
  #stage .next{position:fixed;left:16px;right:16px;bottom:calc(18px + env(safe-area-inset-bottom));z-index:41;margin:0;width:auto;animation:fadeup .3s var(--ease)}
  .result .graded{grid-template-areas:"score head" "say say";column-gap:16px}
  .score{padding:22px 14px 10px}
  .score .pen{font-size:34px}
  .graded h2{align-self:center;margin:0;font-size:26px}
  .graded .say{margin-top:14px}
  .offer{padding:20px 18px 18px}
  .buy{width:100%}
  .slip{grid-template-columns:1fr}
  .stub{border-right:0;border-bottom:2px dashed var(--line);flex-direction:row;flex-wrap:wrap;align-items:baseline;column-gap:12px;padding:16px 18px}
  .stub-k{flex-basis:100%}
  .stub-p{font-size:40px;margin:2px 0 0}
  .slip form{padding:18px 16px 16px}
  .more{padding:44px 0 16px}
  .cols{grid-template-columns:1fr;gap:32px}
  .bar .mini{font-size:14px;padding:8px 12px}
}
@keyframes sheetup{from{transform:translateY(100%)}to{transform:none}}
@keyframes fadeup{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@media (max-width:380px){.when{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){
  .fill-in,#stage .why,#stage .next{animation:none}
  .opt,.bub,.buy,.next,.hold{transition:none}
}