/* LearnQuality shell pages (catalogue, module player): the same dark, Mars-rust + amber identity */
:root{--display:Bahnschrift,"DIN Alternate","DIN Next","Roboto Condensed","Arial Narrow",Arial,sans-serif;--text:"Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;--mono:"Cascadia Mono",Consolas,"SF Mono",Menlo,monospace;--lq-pad:16px;--bg:#0a0705;--panel:#1a1108;--card:#22160b;--line:#4a3418;--ink:#f2ede3;--muted:#c3b39a;--accent:#f0a83c;--accent2:#ff7a1a;--good:#37d07a;--bad:#ff6b6b}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:radial-gradient(1200px 600px at 80% -10%,#2a1a0c 0%,var(--bg) 55%) fixed,var(--bg);color:var(--ink);
  font:16px/1.6 var(--text);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,.brand b,.btn{font-family:var(--display);letter-spacing:.005em}
h1,h2{text-wrap:balance}
.wrap{max-width:980px;margin:0 auto;padding:24px 16px 64px}
.brand{display:inline-flex;align-items:center;gap:12px;margin-bottom:18px;color:var(--ink);text-decoration:none}
.logo{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent2))}
h1{margin:0 0 6px;font-size:32px;font-weight:700;line-height:1.1}h2{margin:0 0 8px;font-size:22px;font-weight:600;line-height:1.2}h3{margin:18px 0 6px;font-size:18px;font-weight:600}
.muted{color:var(--muted)}.small{font-size:14px}
.card{background:linear-gradient(180deg,var(--card),var(--panel));border:1px solid var(--line);border-radius:16px;padding:18px;margin:14px 0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.course .code{display:inline-block;font:700 12px/1 Consolas,monospace;letter-spacing:1px;color:var(--accent);border:1px solid var(--line);border-radius:6px;padding:4px 6px;margin-bottom:8px}
.btn{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#1c0f03;border:0;border-radius:10px;padding:11px 18px;font:800 15px/1.1 inherit;
  cursor:pointer;min-height:44px;text-decoration:none;display:inline-flex;align-items:center;gap:6px;font-weight:600;letter-spacing:.02em;transition:filter .15s,transform .15s}
.btn:hover{filter:brightness(1.08)}.btn:active{transform:translateY(1px)}
.btn.ghost{background:var(--card);color:var(--ink);border:1px solid var(--line)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid #fff;outline-offset:2px}
.btn[disabled]{opacity:.5;cursor:not-allowed}
a{color:var(--accent)}
.lessons{list-style:none;padding:0;margin:0}
.lessons li{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}
.tag{font-size:12px;border:1px solid var(--line);border-radius:999px;padding:2px 8px;color:var(--muted);white-space:nowrap}
.tag.free{color:var(--good);border-color:#24603d}
.lesson p{margin:0 0 12px}.lesson ul{margin:0 0 12px;padding-left:22px}
.note{border-left:3px solid var(--accent);background:#1d140a;padding:10px 14px;border-radius:0 10px 10px 0;margin:0 0 12px}
.widget{border:1px dashed var(--line);border-radius:12px;padding:12px;margin:0 0 12px}
.q{margin:0 0 16px}.q .opts{display:grid;gap:8px;margin-top:8px}
.opt{text-align:left;background:#140d07;color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:10px 12px;font:600 15px/1.35 inherit;min-height:44px;cursor:pointer}
.opt.sel{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent) inset}
.opt.right{border-color:var(--good)}.opt.wrong{border-color:var(--bad)}
.exp{font-size:14px;color:var(--muted);margin-top:6px}
.result{font-size:20px;font-weight:800}.good{color:var(--good)}.bad{color:var(--bad)}
.locked{color:var(--muted)}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
.hide{display:none!important}