/* Lapis a okr – pigmenty renesance. Římská kapitála pro čísla a nadpisy, humanistické bezpatkové písmo pro čtení. */
:root{
  --paper:#f3f5f9; --card:#ffffff; --ink:#1a2135; --muted:#596379; --line:#d8deea;
  --lapis:#1f3c9c; --lapis-soft:#e4e9f7; --ochre:#a87b14;
  --ok:#2b7a4b; --ok-soft:#e2f2e8; --bad:#b0352d; --bad-soft:#f8e4e2;
  --display:"Cinzel","Trajan Pro",Georgia,serif;
  --body:"Alegreya Sans","Segoe UI",system-ui,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --paper:#10131c; --card:#181c28; --ink:#e7eaf3; --muted:#9aa3b8; --line:#2b3145;
  --lapis:#8ea6ff; --lapis-soft:#1f2740; --ochre:#d8ae4a;
  --ok:#6cc794; --ok-soft:#173226; --bad:#ef8178; --bad-soft:#3a1d1c; color-scheme:dark}}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html,body{background:var(--paper);color:var(--ink);margin:0}
body{font-family:var(--body);font-size:17px;line-height:1.5;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));
  padding-top:calc(20px + env(safe-area-inset-top,0px));padding-bottom:calc(40px + env(safe-area-inset-bottom,0px))}
.app{max-width:560px;margin:0 auto;display:flex;flex-direction:column;gap:20px}
.app.wide{max-width:760px}
header{display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:4px 12px;border-bottom:1px solid var(--line);padding-bottom:12px}
.brand{font-family:var(--display);font-weight:700;font-size:1.35rem;letter-spacing:.06em;margin:0;cursor:pointer}
.brand span{color:var(--ochre)}
.sub{color:var(--muted);font-size:.85rem;letter-spacing:.04em;text-transform:uppercase}
h2{font-family:var(--display);font-weight:500;font-size:1rem;letter-spacing:.08em;text-transform:uppercase;margin:0;color:var(--muted)}
section{display:flex;flex-direction:column;gap:16px}
.topics{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.topic{display:flex;flex-direction:column;gap:6px;text-align:left;padding:10px 12px;border:1.5px solid var(--line);border-radius:6px;background:var(--card);color:var(--ink);font:inherit;cursor:pointer;min-width:0}
.topic[aria-pressed="true"]{border-color:var(--lapis);background:var(--lapis-soft)}
.topic b{font-weight:700;font-size:.98rem}
.topic small{color:var(--muted);font-size:.8rem;font-variant-numeric:tabular-nums}
.bar{height:4px;background:var(--line);border-radius:2px;overflow:hidden;display:block}
.bar i{display:block;height:100%;background:var(--ochre)}
.modes{display:flex;flex-direction:column;gap:10px}
.btn{font:inherit;font-weight:700;padding:14px 16px;border-radius:6px;border:1.5px solid var(--lapis);background:var(--lapis);color:var(--paper);cursor:pointer;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:12px}
.btn.ghost{background:transparent;color:var(--lapis)}
.btn small{font-weight:400;opacity:.85;font-size:.85rem}
.btn:disabled{opacity:.4;cursor:default}
.btn:focus-visible,.opt:focus-visible,.topic:focus-visible,input:focus-visible,select:focus-visible,.link:focus-visible,.card:focus-visible{outline:3px solid var(--ochre);outline-offset:2px}
.link{background:none;border:0;color:var(--muted);font:inherit;font-size:.85rem;text-decoration:underline;cursor:pointer;padding:4px 0;align-self:flex-start}
.note{color:var(--muted);font-size:.9rem;margin:0}
.who{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:.9rem;color:var(--muted)}
.who b{color:var(--ink)}
.qhead{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.num{font-family:var(--display);font-weight:700;color:var(--ochre);letter-spacing:.06em;font-size:1.05rem}
.tag{font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.progress{height:3px;background:var(--line);border-radius:2px;overflow:hidden}
.progress i{display:block;height:100%;background:var(--lapis);transition:width .25s}
.q{font-size:1.3rem;font-weight:500;line-height:1.35;margin:0;text-wrap:balance}
.opts{display:flex;flex-direction:column;gap:8px}
.opt{font:inherit;text-align:left;padding:13px 14px;border:1.5px solid var(--line);border-radius:6px;background:var(--card);color:var(--ink);cursor:pointer}
.opt.ok{border-color:var(--ok);background:var(--ok-soft)}
.opt.bad{border-color:var(--bad);background:var(--bad-soft)}
.opt:disabled{cursor:default}
form.in{display:flex;gap:8px}
form.in input,.field{flex:1;min-width:0;font:inherit;padding:12px 14px;border:1.5px solid var(--line);border-radius:6px;background:var(--card);color:var(--ink)}
form.in .btn{padding:12px 16px}
.fb{border-left:4px solid var(--ok);background:var(--card);padding:12px 14px;border-radius:0 6px 6px 0;display:flex;flex-direction:column;gap:4px}
.fb.bad{border-left-color:var(--bad)}
.fb strong{color:var(--ok)}
.fb.bad strong{color:var(--bad)}
.fb p{margin:0}
.stats{display:flex;gap:16px;color:var(--muted);font-size:.9rem;font-variant-numeric:tabular-nums}
.grade{display:flex;align-items:center;gap:18px;padding:18px;background:var(--card);border:1.5px solid var(--line);border-radius:6px}
.grade .g{font-family:var(--display);font-weight:700;font-size:3.6rem;line-height:1;color:var(--lapis);min-width:1ch}
.grade p{margin:0}
.review{display:flex;flex-direction:column;gap:10px}
.review>div{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:12px 14px}
.review p{margin:0}
.review .ans{color:var(--ok);font-weight:700}
.review .yours{color:var(--bad);font-size:.9rem}
.review .ex{color:var(--muted);font-size:.92rem}
.card{min-height:240px;background:var(--card);border:1.5px solid var(--line);border-radius:8px;padding:22px 20px;display:flex;flex-direction:column;justify-content:center;gap:14px;cursor:pointer;text-align:left;font:inherit;color:var(--ink)}
.card .front{font-size:1.25rem;font-weight:500;line-height:1.35}
.card .back{border-top:1px solid var(--line);padding-top:14px;display:flex;flex-direction:column;gap:6px}
.card .back b{color:var(--lapis);font-size:1.15rem}
.card .hint{color:var(--muted);font-size:.85rem}
.row{display:flex;gap:10px}
.row .btn{flex:1;justify-content:center}
.btn.no{background:transparent;border-color:var(--bad);color:var(--bad)}
.btn.yes{background:transparent;border-color:var(--ok);color:var(--ok)}

/* Přehled */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}
.tile{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:12px 14px;display:flex;flex-direction:column;gap:2px}
.tile b{font-family:var(--display);font-size:1.7rem;font-weight:700;color:var(--lapis);font-variant-numeric:tabular-nums;line-height:1.1}
.tile span{color:var(--muted);font-size:.85rem}
.days{display:grid;grid-template-columns:repeat(14,1fr);gap:4px;align-items:end;height:110px;padding-top:4px}
.day{display:flex;flex-direction:column;justify-content:flex-end;height:100%;gap:2px;min-width:0}
.day .col{background:var(--lapis-soft);border-radius:2px 2px 0 0;position:relative;overflow:hidden;min-height:2px}
.day .col i{position:absolute;left:0;right:0;bottom:0;background:var(--lapis)}
.day small{font-size:.7rem;color:var(--muted);text-align:center;font-variant-numeric:tabular-nums}
.legend{display:flex;gap:14px;font-size:.8rem;color:var(--muted);flex-wrap:wrap}
.legend i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:5px;vertical-align:-1px}
.tablewrap{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:.95rem;font-variant-numeric:tabular-nums}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:500;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}
td.r,th.r{text-align:right}
.pill{display:inline-block;padding:1px 8px;border-radius:99px;font-size:.8rem;font-weight:700}
.pill.ok{background:var(--ok-soft);color:var(--ok)}
.pill.bad{background:var(--bad-soft);color:var(--bad)}
.pill.mid{background:var(--lapis-soft);color:var(--lapis)}
.topicrow{display:grid;grid-template-columns:minmax(0,9rem) 1fr 4.5rem;gap:10px;align-items:center;font-size:.95rem}
.topicrow .bar{height:8px}
.topicrow .bar i{background:var(--lapis)}
.topicrow span:last-child{text-align:right;color:var(--muted);font-variant-numeric:tabular-nums;font-size:.85rem}
.err{color:var(--bad)}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}