/* hiddenway.info/exam/ - the channel's navy and teal, so the site, the videos
   and the thumbnails read as one product. Dark by default like the rest of the
   domain; sizes are generous on purpose: people study on phones, late, tired. */
:root{--bg:#0a1628;--panel:#112240;--panel2:#16294d;--line:#22375e;--ink:#eef2f8;--dim:#9fb0c9;
      --accent:#00b5ad;--accent-ink:#022a28;--ok:#22c55e;--okbg:#0d2f20;--bad:#f87171;--badbg:#3a1518;
      --warn:#facc15;--radius:14px}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
     font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"Noto Sans",sans-serif}
a{color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:920px;margin:0 auto;padding:0 18px}
main:focus,.app h2:focus{outline:none}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:var(--accent-ink);padding:10px 14px;
      z-index:100;font-weight:700;border-radius:0 0 8px 0}
.skip:focus{left:0}
:focus-visible{outline:3px solid var(--warn);outline-offset:2px;border-radius:6px}

header.top{border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;
           background:rgba(10,22,40,.94);backdrop-filter:blur(10px)}
.bar{display:flex;align-items:center;gap:14px;height:58px}
.brand{font-weight:800;letter-spacing:.3px;font-size:18px;white-space:nowrap;text-decoration:none}
.brand span{color:var(--accent)}
header nav{margin-inline-start:auto;display:flex;align-items:center;gap:6px;font-size:14.5px}
header nav a{color:var(--dim);text-decoration:none;padding:8px 10px;border-radius:9px}
header nav a:hover{color:var(--ink);background:var(--panel)}
header nav a.cta{background:var(--accent);color:var(--accent-ink);font-weight:700}

.hero{padding:48px 0 34px;border-bottom:1px solid var(--line);
      background:linear-gradient(180deg,#0c1b33 0%,var(--bg) 100%)}
.head{padding:26px 18px 8px}
.kicker{margin:0 0 10px;color:var(--accent);font-size:13px;font-weight:700;letter-spacing:1.1px;text-transform:uppercase}
h1{margin:0 0 12px;font-size:clamp(27px,5vw,44px);line-height:1.15;letter-spacing:-.5px}
.head h1{font-size:clamp(25px,4.2vw,36px)}
.head h1 small{display:block;margin-top:6px;font-size:.5em;font-weight:600;color:var(--dim);letter-spacing:0}
.lead{margin:0;color:var(--dim);max-width:62ch;font-size:17.5px}
.lead.small{font-size:15.5px;margin-bottom:14px}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 0}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 20px;
     border-radius:11px;background:var(--accent);color:var(--accent-ink);font:inherit;font-weight:700;
     text-decoration:none;border:2px solid var(--accent);cursor:pointer}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--accent)}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.btn.small{min-height:40px;padding:7px 14px;font-size:14.5px}

.sec,.app h3.sec{font-size:13px;text-transform:uppercase;letter-spacing:1.3px;color:var(--dim);margin:40px 0 14px;font-weight:700}
.cards{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.card{display:flex;flex-direction:column;gap:6px;background:var(--panel);border:1px solid var(--line);
      border-radius:var(--radius);padding:18px;text-decoration:none;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card b{font-size:18px;line-height:1.3}
.card span{color:var(--dim);font-size:14.5px}
.card .who{color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.9px;text-transform:uppercase}
.steps{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.steps div{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}
.steps h3{margin:0;font-size:17px}
.steps p{margin:6px 0 0;color:var(--dim);font-size:15px}
.list{display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.list a{background:var(--panel);border:1px solid var(--line);border-radius:11px;padding:14px 16px;
        display:flex;justify-content:space-between;gap:12px;text-decoration:none;min-height:52px;align-items:center}
.list a:hover{border-color:var(--accent)}
.list em{font-style:normal;color:var(--dim);font-variant-numeric:tabular-nums;font-size:14px}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tags span{background:var(--panel);border:1px solid var(--line);border-radius:99px;padding:6px 13px;
           font-size:13.5px;color:var(--dim)}

.crumbs{font-size:13.5px;color:var(--dim);padding-top:16px}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--ink);text-decoration:underline}
.crumbs i{font-style:normal;opacity:.5;margin:0 4px}

/* study pages */
.qlist{padding-top:8px}
.q{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 14px;margin:16px 0}
.q h2{margin:0 0 8px;font-size:13px;color:var(--dim);font-weight:700;display:flex;align-items:center;gap:10px;
      text-transform:uppercase;letter-spacing:.8px}
.q .n{display:inline-grid;place-items:center;min-width:30px;height:30px;padding:0 8px;border-radius:99px;
      background:var(--accent);color:var(--accent-ink);font-size:14px;letter-spacing:0}
.stem{margin:0 0 12px;font-size:18px;line-height:1.55;font-weight:600}
.opts{margin:0 0 12px;padding-inline-start:1.7em}
.opts li{padding:3px 0 3px 4px}
.opts li::marker{font-weight:700;color:var(--accent)}
details{border-top:1px solid var(--line);padding-top:10px}
summary{cursor:pointer;font-weight:700;color:var(--accent);padding:8px 0;min-height:44px;display:flex;align-items:center;
        list-style:none}
summary::-webkit-details-marker{display:none}
summary::before{content:"+";display:inline-grid;place-items:center;width:24px;height:24px;margin-inline-end:10px;
                border:2px solid var(--accent);border-radius:7px;font-size:17px;line-height:1}
details[open] summary::before{content:"\2212"}
details p{margin:8px 0}
.ans{background:var(--okbg);border:1px solid #1d5a3a;border-radius:10px;padding:10px 13px}
.lbl{color:var(--dim);font-size:12.5px;font-weight:700;text-transform:uppercase;letter-spacing:.9px;margin-top:14px!important}
.why{margin:4px 0 8px;padding-inline-start:1.2em;color:#d5deec}
.why li{margin:4px 0}
.hook{background:var(--panel2);border-inline-start:4px solid var(--warn);border-radius:8px;padding:10px 13px}
.srcline,.fine{color:var(--dim);font-size:13.5px}
.srcline a,.prose a,.fine a{color:var(--accent)}
.tm{margin-top:34px}
.pager{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 0}
.pager a{min-width:46px;height:46px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;
         text-decoration:none;background:var(--panel)}
.pager a[aria-current="page"]{background:var(--accent);color:var(--accent-ink);font-weight:800;border-color:var(--accent)}

.prose{padding-top:20px;max-width:760px}
.prose h2{font-size:21px;margin:30px 0 8px}
.prose p,.prose li{color:#d5deec}

/* the practice app */
.app{padding-top:22px;padding-bottom:30px;max-width:780px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.app h2{margin:0 0 6px;font-size:24px;line-height:1.25}
.field{margin:16px 0 0}
.field label,.field legend{display:block;font-weight:700;font-size:14px;color:var(--dim);margin-bottom:7px;padding:0}
fieldset.field{border:0;padding:0;min-width:0}
select{width:100%;min-height:50px;background:var(--bg);color:var(--ink);border:1px solid var(--line);
       border-radius:10px;padding:10px 12px;font:inherit}
.seg{display:flex;flex-wrap:wrap;gap:8px}
.seg label{position:relative;flex:1 1 88px;margin:0}
.seg input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}
.seg span{display:grid;place-items:center;text-align:center;min-height:50px;padding:8px 10px;border:2px solid var(--line);
          border-radius:10px;background:var(--bg);color:var(--ink);font-weight:600;font-size:15px}
.seg input:checked+span{border-color:var(--accent);background:#0b3a40}
.seg input:disabled+span{opacity:.45}
.seg input:disabled{cursor:not-allowed}
.seg input:focus-visible+span{outline:3px solid var(--warn);outline-offset:2px}
.seg small{display:block;font-weight:400;color:var(--dim);font-size:12.5px}
.stat{margin:14px 0 0;color:var(--dim);font-size:14.5px}
.check{display:flex;gap:10px;align-items:flex-start;margin:18px 0 0;font-size:14.5px;color:var(--dim)}
.check input{width:22px;height:22px;flex:none;accent-color:var(--accent);margin:1px 0 0}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:20px}
.linkbtn{background:none;border:0;color:var(--dim);font:inherit;font-size:14px;text-decoration:underline;cursor:pointer;
         padding:10px 4px;min-height:44px}

.meter{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--dim);margin-bottom:12px}
.app .qhead{margin:0;font-size:14px;font-weight:600;color:var(--dim);white-space:nowrap}
.app h3.sec{margin-top:26px}
.meter .track{flex:1;height:8px;border-radius:99px;background:var(--panel2);overflow:hidden}
.meter .fill{height:100%;background:var(--accent);width:0;transition:width .25s}
.clock{font-variant-numeric:tabular-nums;font-weight:700;color:var(--ink);min-width:4.2ch;text-align:end}
.clock.low{color:var(--warn)}
.tagline{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 10px;font-size:12.5px;color:var(--dim);
         text-transform:uppercase;letter-spacing:.8px;font-weight:700}
.app .stem{font-size:19.5px}
.choices{display:grid;gap:10px;margin:16px 0 0;padding:0;list-style:none}
.choice{display:flex;gap:12px;align-items:flex-start;width:100%;text-align:start;background:var(--bg);color:var(--ink);
        border:2px solid var(--line);border-radius:12px;padding:13px 14px;font:inherit;cursor:pointer;min-height:56px}
.choice:hover:not([disabled]){border-color:var(--accent)}
.choice .k{flex:none;display:grid;place-items:center;width:32px;height:32px;border-radius:50%;
           background:var(--panel2);font-weight:800;font-size:15px}
.choice .t{flex:1;padding-top:3px}
.choice .t small{display:block;margin-top:6px;color:#d5deec;font-size:14.5px;line-height:1.5}
.choice[disabled]{cursor:default;opacity:1}
.choice.picked{border-color:var(--accent);background:#0b3a40}
.choice.right{border-color:var(--ok);background:var(--okbg)}
.choice.right .k{background:var(--ok);color:#03210f}
.choice.wrong{border-color:var(--bad);background:var(--badbg)}
.choice.wrong .k{background:var(--bad);color:#2a0606}
.verdict{margin:18px 0 0;font-size:19px;font-weight:800}
.verdict.good{color:var(--ok)}
.verdict.miss{color:var(--bad)}
.explain{margin-top:10px}
.explain p{margin:8px 0}
.score{font-size:clamp(44px,11vw,72px);font-weight:800;line-height:1;margin:8px 0 4px;font-variant-numeric:tabular-nums}
.score small{font-size:.35em;color:var(--dim);font-weight:600}
.break{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:8px}
.break li{display:flex;justify-content:space-between;gap:12px;background:var(--bg);border:1px solid var(--line);
          border-radius:10px;padding:10px 13px;font-size:15px}
.review{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:8px}
.review li{background:var(--bg);border:1px solid var(--line);border-inline-start:4px solid var(--bad);border-radius:10px;
           padding:10px 13px;font-size:15px}
.review li.ok{border-inline-start-color:var(--ok)}
.review b{display:block;margin-top:4px;color:#d5deec;font-weight:600}
.note{background:var(--panel2);border-radius:10px;padding:12px 14px;color:#d5deec;font-size:15px;margin-top:16px}

footer{border-top:1px solid var(--line);margin-top:56px;padding:28px 0 44px;color:var(--dim);font-size:15px}
footer p{margin:0 0 12px;max-width:72ch}
footer a{color:var(--ink)}

@media (max-width:560px){
  body{font-size:16.5px}
  .bar{height:54px;gap:8px}
  header nav{gap:0;font-size:13.5px}
  header nav a{padding:8px 7px}
  header nav a[href$="sources/"]{display:none}
  .hero{padding:32px 0 26px}
  .panel{padding:16px}
  .q{padding:15px 14px 10px}
}
/* Installed as an app (and later inside the Play Store wrapper) the links to the
   rest of the domain would leave the app, so the strip is not shown there. */
@media (display-mode:standalone),(display-mode:fullscreen),(display-mode:minimal-ui){.hw-net{display:none!important}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{header.top,footer,.actions,.pager,.skip{display:none}body{background:#fff;color:#000}
  .q{border-color:#999;background:#fff;break-inside:avoid}.stem,.opts li::marker{color:#000}}
.nw{white-space:nowrap}