/* Vizuální styl převzat z referenční aplikace „Zbrojní oprávnění 2026", mobile-first. */
:root{
  --bg:#e7eaed; --panel:#fff; --ink:#1a2026; --muted:#5c6773;
  --steel:#2f4858; --steel-2:#3f6b82; --line:#d3d9de;
  --ok:#0f7a37; --ok-bg:#e2f3e8; --ok-br:#8fcfa6;
  --no-ink:#59636e; --no-bg:#eceff1; --no-br:#cdd4da;
  --key:#ffd23f; --flaw:#b3261e; --warn:#b3261e;
  --shadow:0 1px 2px rgba(20,30,40,.06),0 8px 24px rgba(20,30,40,.06);
}
/* akcentní barvy kategorií (vzor: úrovně v Cambridge Exam Trainer) */
body[data-kat="moto"]{--steel:#8a4413; --steel-2:#b06a2e}
body[data-kat="osobni"]{--steel:#2f4858; --steel-2:#3f6b82}
body[data-kat="nakladni"]{--steel:#4a3a6b; --steel-2:#6f5aa0}
body[data-kat="autobus"]{--steel:#0f5c46; --steel-2:#1f8a6b}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Inter",system-ui,sans-serif;line-height:1.5;
  background-image:radial-gradient(circle at 1px 1px,rgba(47,72,88,.07) 1px,transparent 0);background-size:22px 22px;}
.wrap{max-width:1140px;margin:0 auto;padding:14px 12px 80px}
header{margin-bottom:10px}
.eyebrow{font-family:"JetBrains Mono",monospace;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--steel-2);font-weight:700}
h1{font-family:"Chakra Petch",sans-serif;font-weight:700;font-size:clamp(20px,4.5vw,32px);margin:4px 0 8px;text-transform:uppercase}
.loadbox{padding:40px 20px;text-align:center;color:var(--muted);font-family:"Chakra Petch",sans-serif}
.loadbox.err{color:var(--flaw)}
/* Tabs + výběr skupiny */
.toprow{display:flex;align-items:flex-end;gap:10px;flex-wrap:wrap;border-bottom:2px solid var(--line);margin-bottom:14px}
.tabs{display:flex;gap:2px;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;flex:1;min-width:0}
.tab{font-family:"Chakra Petch",sans-serif;font-weight:600;font-size:13px;letter-spacing:.02em;text-transform:uppercase;
  border:none;background:transparent;color:var(--muted);padding:10px 10px;cursor:pointer;border-bottom:3px solid transparent;margin-bottom:-2px;
  display:flex;align-items:center;gap:6px;white-space:nowrap;flex:none}
.tab:hover{color:var(--steel)}
.tab.on{color:var(--steel);border-bottom-color:var(--steel)}
.badge{font-family:"JetBrains Mono",monospace;font-size:11px;font-weight:700;background:var(--flaw);color:#fff;border-radius:99px;padding:1px 7px;min-width:20px;text-align:center}
.badge.zero{background:#c3ccd3}
/* přepínač kategorií (Motocykl / Osobní / Nákladní / Autobus) */
.katbar{display:flex;gap:6px;flex-wrap:wrap;margin:2px 0 10px}
.kat{font-family:"Chakra Petch",sans-serif;font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:.02em;
  border:1.5px solid var(--line);background:#fff;color:var(--muted);border-radius:99px;padding:7px 14px;cursor:pointer;
  display:flex;align-items:center;gap:7px;transition:all .12s}
.kat .dot{width:9px;height:9px;border-radius:50%;flex:none}
.kat:hover{border-color:var(--steel-2);color:var(--steel)}
.kat.on{background:var(--steel);border-color:var(--steel);color:#fff}
/* vstupní výběr kategorie */
.katpick{max-width:720px;margin:30px auto;text-align:center}
.katpick h2{font-family:"Chakra Petch",sans-serif;text-transform:uppercase;font-size:22px;margin:0 0 6px}
.katpick p{color:var(--muted);font-size:14px;margin:0 0 22px}
.katcards{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:600px){.katcards{grid-template-columns:1fr 1fr}}
.katcard{background:#fff;border:1.5px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:20px;cursor:pointer;
  text-align:left;display:flex;gap:14px;align-items:center;transition:transform .12s,border-color .12s;font-family:inherit;font-size:inherit}
.katcard:hover{transform:translateY(-2px);border-color:var(--kc)}
.katcard .swatch{width:44px;height:44px;border-radius:12px;flex:none;background:var(--kc);display:grid;place-items:center;color:#fff;
  font-family:"Chakra Petch",sans-serif;font-weight:700;font-size:18px}
.katcard h3{font-family:"Chakra Petch",sans-serif;text-transform:uppercase;font-size:16px;margin:0;color:var(--ink)}
.katcard .pop{font-family:"JetBrains Mono",monospace;font-size:12px;color:var(--muted);margin-top:2px}
.view{display:none}.view.on{display:block}
/* chips + bar */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.chip{font-family:"Chakra Petch",sans-serif;font-size:12.5px;font-weight:600;border:1.5px solid var(--line);background:#fff;color:var(--muted);
  border-radius:99px;padding:7px 13px;cursor:pointer;transition:all .12s}
.chip:hover{border-color:var(--steel-2);color:var(--steel)}
.chip.on{background:var(--steel);border-color:var(--steel);color:#fff}
.barwrap{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:12px}
.bar{flex:1;min-width:140px;height:8px;background:#d5dbe0;border-radius:99px;overflow:hidden}
.bar>span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--steel),var(--steel-2));transition:width .35s ease}
.stats{font-family:"JetBrains Mono",monospace;font-size:12px;color:var(--muted);white-space:nowrap}
.stats b{color:var(--ink)} .stats .g{color:var(--ok)} .stats .r{color:var(--flaw)}
/* layout + karta: mobil = 1 sloupec, desktop = 2 */
.grid{display:grid;grid-template-columns:1fr;gap:16px;align-items:start}
@media(min-width:841px){.grid{grid-template-columns:1fr 320px}.side{position:sticky;top:16px}}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);overflow:hidden}
.qhead{display:flex;align-items:center;gap:8px;padding:14px 16px 4px;flex-wrap:wrap}
.qnum{font-family:"Chakra Petch",sans-serif;font-weight:700;font-size:12.5px;color:#fff;background:var(--steel);padding:4px 9px;border-radius:6px;white-space:nowrap}
.qpts{font-family:"JetBrains Mono",monospace;font-weight:700;font-size:11px;color:var(--steel);background:#eef4f8;border:1px solid #bcd0dc;padding:3px 7px;border-radius:6px;white-space:nowrap}
.qsec{font-family:"JetBrains Mono",monospace;font-size:10.5px;color:var(--muted)}
.qbody{padding:6px 16px 4px;font-size:16px;font-weight:500}
.qnote{padding:0 16px;font-size:12.5px;color:var(--muted);font-style:italic}
.qimgs{padding:8px 16px 2px;display:flex;flex-direction:column;gap:8px}
.qimgs img{max-width:100%;border:1px solid var(--line);border-radius:8px;background:#fff}
.qimgs video{max-width:100%;border:1px solid var(--line);border-radius:8px;background:#000}
.vidgate{padding:4px 16px;font-family:"JetBrains Mono",monospace;font-size:11.5px;color:var(--flaw);font-weight:700}
.vidgate.done{color:var(--ok)}
.opts{padding:10px 12px 6px;display:flex;flex-direction:column;gap:9px}
.opt{display:flex;gap:11px;align-items:flex-start;border:1.5px solid var(--line);border-radius:10px;padding:12px 13px;cursor:pointer;background:#fff;font-size:14.5px;
  transition:border-color .15s,background .15s,transform .05s,opacity .15s}
.opt:hover:not(.locked):not(.gated){border-color:var(--steel-2);background:#f7fafc}
.opt:active:not(.locked):not(.gated){transform:translateY(1px)}
.opt.locked{cursor:default}
.opt.gated{cursor:not-allowed;opacity:.45}
.opt img{max-width:100%;border:1px solid var(--line);border-radius:6px;margin-top:4px;background:#fff}
.tagl{font-family:"JetBrains Mono",monospace;font-weight:700;font-size:13px;width:24px;height:24px;flex:none;border-radius:6px;display:grid;place-items:center;background:#eef2f5;color:var(--steel);border:1px solid var(--line)}
.answered .opt.ok{background:var(--ok-bg);border-color:var(--ok-br)}
.answered .opt.ok .tagl{background:var(--ok);color:#fff;border-color:var(--ok)}
.answered .opt.no{background:var(--no-bg);border-color:var(--no-br);color:var(--no-ink)}
.answered .opt.no .tagl{background:#dde3e8;color:var(--no-ink)}
.answered .opt.picked{box-shadow:0 0 0 2px rgba(47,72,88,.25)}
.answered .opt.picked.no{box-shadow:0 0 0 2px rgba(179,38,30,.35)}
.opt.exam-sel{border-color:var(--steel);background:#eef4f8;box-shadow:0 0 0 2px rgba(47,72,88,.2)}
.opt.exam-sel .tagl{background:var(--steel);color:#fff}
.mark{margin-left:auto;font-family:"JetBrains Mono",monospace;font-weight:700;font-size:11.5px;align-self:center;opacity:0;white-space:nowrap;transition:opacity .2s}
.answered .opt.ok .mark{opacity:1;color:var(--ok)}
.answered .opt.no .mark{opacity:1;color:var(--no-ink)}
.nav{display:flex;gap:10px;padding:12px 14px 14px;align-items:center;flex-wrap:wrap}
.btn{font-family:"Chakra Petch",sans-serif;font-weight:600;font-size:14px;border:1.5px solid var(--steel);background:#fff;color:var(--steel);padding:10px 16px;border-radius:8px;cursor:pointer;transition:all .12s;text-transform:uppercase;
  min-height:42px}
.btn:hover{background:var(--steel);color:#fff}
.btn:disabled{opacity:.35;cursor:not-allowed;background:#fff;color:var(--steel)}
.btn.primary{background:var(--steel);color:#fff}
.btn.primary:hover{background:var(--steel-2);border-color:var(--steel-2)}
.btn.danger{border-color:var(--flaw);color:var(--flaw)}
.btn.danger:hover{background:var(--flaw);color:#fff}
.spacer{flex:1}
.jump{font-family:"JetBrains Mono",monospace;font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:6px}
.jump input{width:110px;font-family:"JetBrains Mono",monospace;font-size:13px;text-align:center;border:1.5px solid var(--line);border-radius:6px;padding:7px 5px}
.sum{background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);overflow:hidden}
.sum .top{background:var(--steel);color:#fff;padding:12px 16px;font-family:"Chakra Petch",sans-serif;font-weight:700;font-size:13px;text-transform:uppercase;display:flex;align-items:center;gap:8px}
.sum .top::before{content:"";width:9px;height:9px;border-radius:2px;background:var(--key)}
.sum .body{padding:15px 16px;font-size:14px;min-height:60px}
.sum .placeholder{color:var(--muted);font-style:italic}
.sum .ans{font-family:"JetBrains Mono",monospace;font-weight:700;font-size:12px;color:var(--ok);display:inline-block;margin-bottom:8px;background:var(--ok-bg);border:1px solid var(--ok-br);padding:2px 8px;border-radius:5px}
.legend{margin-top:14px;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);font-size:12.5px;color:var(--muted)}
.legend h4{margin:0 0 8px;font-family:"Chakra Petch",sans-serif;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--steel-2)}
.legend .row{display:flex;align-items:center;gap:8px;margin:5px 0}
.sw{width:16px;height:16px;border-radius:4px;flex:none;border:1px solid var(--line);display:grid;place-items:center;font-size:9px}
.sw.ok{background:var(--ok-bg);border-color:var(--ok-br)} .sw.no{background:var(--no-bg);border-color:var(--no-br)}
.sw.vid{background:#000;color:#fff;border-color:#000}
.note{margin-top:14px;font-size:12px;color:var(--muted);text-align:center;font-family:"JetBrains Mono",monospace}
kbd{font-family:"JetBrains Mono",monospace;background:#dde3e8;border-radius:4px;padding:1px 5px;font-size:11px}
.empty{padding:44px 24px;text-align:center;color:var(--muted)}
.empty b{color:var(--ink)}
/* exam */
.exam-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.timer{font-family:"JetBrains Mono",monospace;font-weight:700;font-size:20px;color:var(--steel);background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:8px 14px}
.timer.low{color:var(--flaw);border-color:var(--flaw)}
.qgrid{display:flex;flex-wrap:wrap;gap:5px;margin:6px 0 12px}
.qdot{width:34px;height:32px;border:1.5px solid var(--line);border-radius:7px;background:#fff;font-family:"JetBrains Mono",monospace;font-size:11.5px;font-weight:700;color:var(--muted);cursor:pointer;display:grid;place-items:center}
.qdot.filled{background:var(--steel);border-color:var(--steel);color:#fff}
.qdot.cur{box-shadow:0 0 0 2.5px var(--key)}
.qdot.rok{background:var(--ok-bg);border-color:var(--ok-br);color:var(--ok)}
.qdot.rno{background:#fbeaea;border-color:#e5b6b3;color:var(--flaw)}
.result{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:20px;margin-bottom:16px}
.result h2{font-family:"Chakra Petch",sans-serif;margin:0 0 6px;text-transform:uppercase;font-size:20px}
.score{font-family:"JetBrains Mono",monospace;font-size:40px;font-weight:700}
.verdict{display:inline-block;font-family:"Chakra Petch",sans-serif;font-weight:700;padding:5px 14px;border-radius:8px;margin:6px 8px 6px 0;font-size:14px}
.verdict.pass{background:var(--ok-bg);color:var(--ok);border:1.5px solid var(--ok-br)}
.verdict.fail{background:#fbeaea;color:var(--flaw);border:1.5px solid #e5b6b3}
.mailrow{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;align-items:center}
.mailrow input{flex:1;min-width:200px;border:1.5px solid var(--line);border-radius:8px;padding:10px 12px;font-family:"Inter",sans-serif;font-size:14px}
.mailhint{font-size:12px;color:var(--muted);margin-top:6px}
/* tahák + statistika */
.tk{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:700px){.tk{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}}
.tcard{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:18px}
.tcard h3{font-family:"Chakra Petch",sans-serif;text-transform:uppercase;font-size:15px;margin:0 0 4px;color:var(--steel)}
.tcard .src{font-family:"JetBrains Mono",monospace;font-size:10.5px;color:var(--muted);margin-bottom:12px}
.tk table{width:100%;border-collapse:collapse;font-size:13px}
.tk th{font-family:"Chakra Petch",sans-serif;text-align:left;font-size:11.5px;text-transform:uppercase;color:var(--muted);padding:6px 8px;border-bottom:2px solid var(--line)}
.tk td{padding:7px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.tk td b.num{font-family:"JetBrains Mono",monospace;color:var(--steel);white-space:nowrap}
.tk a{color:var(--steel);text-decoration:underline;text-underline-offset:2px;cursor:pointer}
.bigfact{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px}
.bf{flex:1;min-width:100px;background:#eef4f8;border:1.5px solid #bcd0dc;border-radius:10px;padding:10px;text-align:center}
.bf .v{font-family:"JetBrains Mono",monospace;font-weight:700;font-size:20px;color:var(--steel)}
.bf .l{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.pill{display:inline-block;font-family:"JetBrains Mono",monospace;font-size:11px;font-weight:700;border-radius:6px;padding:1px 7px;margin:1px 2px}
.p-ban{background:#fbe3e1;color:#7a1a14}.p-ok{background:var(--ok-bg);color:#0c5e2b}.p-b{background:#eef4f8;color:#24455a}
.stgrid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:700px){.stgrid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}}
.strow{margin:10px 0}
.strow .lbl{display:flex;justify-content:space-between;font-size:13px;margin-bottom:4px;gap:8px}
.strow .lbl b{font-family:"JetBrains Mono",monospace;white-space:nowrap}
.sbar{height:10px;background:#e3e8ec;border-radius:99px;overflow:hidden;display:flex}
.sbar .g{background:var(--ok);height:100%}
.sbar .r{background:#d9827c;height:100%}
.misslist{font-size:13px;padding-left:18px}
.misslist a{color:var(--steel);cursor:pointer;text-decoration:underline;text-underline-offset:2px}
.misslist li{margin:5px 0}
.warnbox{background:#fdf1dc;border:1.5px solid #ecd3a0;border-radius:10px;padding:10px 14px;font-size:12.5px;color:#7a5410;margin-bottom:14px}