/* ECA Training — shared styles. One centered column; sticky progress bar during a test. */
:root{
  --bg:#f3f1ec; --surface:#ffffff; --fg:#1d1f22; --muted:#5d6168; --line:#d9d5cc;
  --accent:#d9641c; --accent-ink:#ffffff; --good:#2e7d4f; --bad:#b3261e; --warn:#a06a00;
  --easy:#2e7d4f; --medium:#a06a00; --hard:#b3261e;
  --display:"Barlow Semi Condensed","Arial Narrow",Arial,sans-serif;
  --body:"Public Sans","Segoe UI",Helvetica,Arial,sans-serif;
}
@media (prefers-color-scheme: dark){ :root{
  --bg:#17191c; --surface:#212428; --fg:#ececea; --muted:#a6aab1; --line:#363a40;
  --accent:#f08a3e; --accent-ink:#1a1a1a; --good:#5fc48a; --bad:#f07b73; --warn:#e2b14e;
  --easy:#5fc48a; --medium:#e2b14e; --hard:#f07b73; color-scheme:dark } }
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0}
body{background:var(--bg);color:var(--fg);font-family:var(--body);font-size:16px;line-height:1.5;padding-inline:16px;padding-block:0 48px}
.wrap{max-width:760px;margin:0 auto}
.wrap.wide{max-width:1100px}
h1,h2,h3{font-family:var(--display);line-height:1.1;text-wrap:balance;margin:0}
h1{font-size:2rem;font-weight:700} h2{font-size:1.35rem;font-weight:700} h3{font-size:1.1rem;font-weight:600}
p{margin:0}
.eyebrow{font-family:var(--display);font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600}
header.top{display:flex;flex-direction:column;gap:6px;padding-block:28px 18px;border-bottom:2px solid var(--fg)}
header.top .sub{color:var(--muted);max-width:60ch}
header.top .who{display:flex;gap:12px;align-items:center;flex-wrap:wrap;color:var(--muted);font-size:.9rem;margin-top:6px}
.stack{display:flex;flex-direction:column;gap:16px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:20px}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
label{font-weight:600;font-size:.95rem}
input[type=text],input[type=email]{font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--fg);min-width:0;width:100%;max-width:380px}
input:focus,button:focus-visible,.opt:focus-within,a:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
button{font:inherit;font-family:var(--display);font-weight:700;font-size:1.05rem;letter-spacing:.02em;padding:11px 20px;border-radius:6px;border:2px solid var(--accent);background:var(--accent);color:var(--accent-ink);cursor:pointer}
button.ghost{background:transparent;color:var(--fg);border-color:var(--line)}
button.small{padding:6px 12px;font-size:.9rem}
button:disabled{opacity:.45;cursor:not-allowed}
a{color:var(--accent)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}
.stat{border-left:3px solid var(--accent);padding-left:12px}
.stat b{font-family:var(--display);font-size:1.6rem;font-weight:700;display:block;line-height:1;font-variant-numeric:tabular-nums}
.stat span{color:var(--muted);font-size:.9rem}
.mix{display:flex;gap:8px;flex-wrap:wrap}
.chip{font-family:var(--display);font-weight:600;font-size:.8rem;letter-spacing:.05em;text-transform:uppercase;padding:3px 9px;border-radius:999px;border:1px solid currentColor;white-space:nowrap}
.chip.easy{color:var(--easy)} .chip.medium{color:var(--medium)} .chip.hard{color:var(--hard)}
.progress{position:sticky;top:0;z-index:5;background:var(--bg);padding-block:10px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:12px}
.bar{flex:1;height:8px;background:var(--line);border-radius:4px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--accent);width:0;transition:width .2s}
.progress b{font-family:var(--display);font-variant-numeric:tabular-nums;white-space:nowrap}
.q{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:18px 20px;display:flex;flex-direction:column;gap:12px}
.q .head{display:flex;justify-content:space-between;gap:10px;align-items:baseline}
.q .num{font-family:var(--display);font-weight:700;color:var(--muted);font-variant-numeric:tabular-nums}
.q .text{font-weight:600;font-size:1.05rem}
.opts{display:flex;flex-direction:column;gap:8px}
.opt{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border:1px solid var(--line);border-radius:6px;cursor:pointer;background:var(--bg)}
.opt input{margin-top:4px;accent-color:var(--accent)}
.opt.sel{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}
.opt .k{font-family:var(--display);font-weight:700;color:var(--muted);min-width:1.2em}
.q.wrong{border-left:4px solid var(--bad)}
.opt.correct{border-color:var(--good);box-shadow:inset 0 0 0 1px var(--good)}
.opt.missed{border-color:var(--bad);box-shadow:inset 0 0 0 1px var(--bad);text-decoration:line-through}
.why{font-size:.95rem;border-top:1px dashed var(--line);padding-top:10px}
.why .src{color:var(--muted);font-size:.85rem;display:block;margin-top:4px}
.verdict{display:flex;flex-wrap:wrap;gap:20px;align-items:center;border-left:6px solid var(--good)}
.verdict.fail{border-left-color:var(--bad)}
.verdict .big{font-family:var(--display);font-size:3rem;font-weight:700;line-height:1;font-variant-numeric:tabular-nums}
.verdict .lbl{font-family:var(--display);font-size:1.3rem;font-weight:700}
.verdict.pass .lbl{color:var(--good)} .verdict.fail .lbl{color:var(--bad)}
.note{color:var(--muted);font-size:.9rem}
.err{color:var(--bad);font-weight:600}
table{width:100%;border-collapse:collapse;font-size:.95rem}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-family:var(--display);letter-spacing:.04em;text-transform:uppercase;font-size:.78rem;color:var(--muted)}
td.n{font-variant-numeric:tabular-nums;white-space:nowrap}
.pass{color:var(--good);font-weight:600} .fail{color:var(--bad);font-weight:600}
.tablewrap{overflow-x:auto}
.foot{color:var(--muted);font-size:.85rem;border-top:1px solid var(--line);padding-top:14px}
.meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;margin:0}
.meta div{display:flex;flex-direction:column}
.meta dt{font-family:var(--display);font-size:.78rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);font-weight:600}
.meta dd{margin:0;font-weight:600}
.print-only{display:none}
@media (prefers-reduced-motion: reduce){.bar i{transition:none}}
/* Print: a clean results sheet. Buttons, header and progress bar go; verdict, breakdown, record details and the review stay. */
@media print{
  :root{--bg:#fff;--surface:#fff;--fg:#000;--muted:#444;--line:#999}
  body{background:#fff;color:#000;padding:0;font-size:12pt}
  .wrap{max-width:none}
  .no-print,.progress,button{display:none!important}
  .print-only{display:block}
  .print-head{border-bottom:2px solid #000;padding-bottom:6pt;margin-bottom:6pt}
  .panel,.q{border:1px solid #999;break-inside:avoid;box-shadow:none}
  .verdict{border-left-width:8pt}
  .verdict.pass{border-left-color:#000} .verdict.fail{border-left-color:#000}
  .verdict .big{font-size:36pt}
  .stat b{font-size:18pt}
  .review-title{break-before:page;margin-top:0;padding-top:12pt}
  .opt.correct{border:2px solid #000;font-weight:600}
  .opt.correct::after{content:" ✓ correct";font-weight:600}
  .opt.missed{border:1px dashed #000;text-decoration:line-through}
  .opt.missed::after{content:" ✗ your answer";text-decoration:none;font-weight:600}
  .chip{border:1px solid #000;color:#000}
  a{color:#000;text-decoration:none}
}