:root{--bg:#f4f0ff;--surface:#fff;--ink:#1d1338;--muted:#6a6188;--line:#ddd5f5;--brand:#6b3fe0;--brand-l:#ece5ff;--yellow:#f6d94c;--hero1:#3d1d99;--hero2:#6b3fe0;--ok:#0f8a46;--okbg:#e1f7ea;--bad:#c7283a;--badbg:#fde7ea;--shadow:0 12px 32px rgba(61,29,153,.14)}
[data-theme=dark]{--bg:#120c26;--surface:#1c1438;--ink:#f1ecff;--muted:#a99fd0;--line:#33285c;--brand:#a58aff;--brand-l:#2a2050;--hero1:#241058;--hero2:#4a22b8;--ok:#45dd8a;--okbg:#10321f;--bad:#ff7b89;--badbg:#3a1520;--shadow:0 12px 32px rgba(0,0,0,.45)}
*{box-sizing:border-box;margin:0}
body{font-family:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55;min-height:100vh;display:flex;flex-direction:column}
main{flex:1}
[hidden]{display:none!important}
button{font:inherit;cursor:pointer;color:inherit}
:focus-visible{outline:3px solid var(--yellow);outline-offset:2px}
h1:focus,h2:focus{outline:none}
.wrap{width:min(1080px,100% - 2rem);margin-inline:auto}
.top{background:var(--hero1);color:#fff}
.bar{display:flex;justify-content:space-between;align-items:center;padding:.9rem 0}
.brand{display:flex;align-items:center;gap:.6rem;background:none;border:0;font-weight:800;font-size:1.2rem;color:#fff}
.icon-btn{width:40px;height:40px;border-radius:12px;border:1.5px solid rgba(255,255,255,.35);background:transparent;color:#fff;display:grid;place-items:center}
.icon-btn:hover{background:rgba(255,255,255,.12)}
.i-sun{display:none}[data-theme=dark] .i-sun{display:block}[data-theme=dark] .i-moon{display:none}
.hero{position:relative;background:linear-gradient(160deg,var(--hero1),var(--hero2));color:#fff;padding-bottom:5rem}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:2rem;align-items:center;padding-top:2.5rem}
.hero h1{font-size:clamp(2rem,5vw,3.3rem);font-weight:800;line-height:1.12;margin-bottom:1rem;max-width:16ch}
.hero p{color:#e3dbff;max-width:46ch;margin-bottom:1.6rem}
.art{width:100%;max-width:340px;justify-self:end}
.wave{position:absolute;left:0;bottom:-1px;width:100%;height:56px}
.btn{display:inline-flex;align-items:center;gap:.5rem;border:0;border-radius:12px;padding:.8rem 1.4rem;font-weight:600;background:var(--brand);color:#fff}
.btn:hover{filter:brightness(1.1)}
.btn.yellow{background:var(--yellow);color:#2a1668}
.btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.pick{position:relative;margin-top:-3.2rem;background:var(--surface);border-radius:24px;box-shadow:var(--shadow);padding:1rem;display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.cat{display:flex;flex-direction:column;align-items:flex-start;gap:.25rem;text-align:left;padding:1.1rem;border-radius:16px;border:1.5px solid var(--line);background:transparent}
.cat:hover{border-color:var(--brand)}
.cat h2{font-size:1.1rem;margin-top:.5rem}
.cat .best{font-size:.85rem;color:var(--muted)}
.ico{width:44px;height:44px;border-radius:50%;background:var(--brand-l);color:var(--brand);display:grid;place-items:center}
.cat.feat{background:var(--brand);border-color:var(--brand);color:#fff}
.cat.feat .best{color:#e6dcff}.cat.feat .ico{background:rgba(255,255,255,.2);color:#fff}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:2.5rem 0}
.steps div{background:var(--yellow);color:#2a1668;border-radius:18px;padding:1.2rem 1.3rem}
.steps h3{font-size:1.05rem;margin-bottom:.2rem}.steps p{font-size:.92rem}
.hist{margin-bottom:3rem}
.hist-head{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;margin-bottom:.8rem}
.hist h2{font-size:1.4rem}
.link{background:none;border:0;color:var(--brand);text-decoration:underline;font-size:.9rem}
#history{list-style:none;padding:0;background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden}
#history li{display:grid;grid-template-columns:5rem 1fr 3rem 4.5rem;gap:.8rem;align-items:center;padding:.8rem 1.1rem;border-top:1px solid var(--line)}
#history li:first-child{border-top:0}
#history .empty{display:block;color:var(--muted)}
.h-cat{font-weight:600}.h-pts{font-weight:800;color:var(--brand);text-align:right}.h-date{color:var(--muted);font-size:.88rem;text-align:right}
.card{background:var(--surface);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:clamp(1.1rem,4vw,2.2rem);width:min(720px,100% - 2rem);margin:2rem auto}
.meta{display:flex;justify-content:space-between;align-items:center;gap:.8rem;font-size:.92rem;color:var(--muted);margin-bottom:.8rem}
.time{display:inline-flex;align-items:center;gap:.35rem}
.time.warn{color:var(--bad)}
.prog{height:8px;border-radius:99px;background:var(--brand-l);overflow:hidden;margin-bottom:1.6rem}
.prog i{display:block;height:100%;width:0;background:var(--brand);transition:width .4s}
.cat-tag{font-size:.9rem;color:var(--brand);font-weight:600;margin-bottom:.3rem}
#q-text{font-size:clamp(1.2rem,3.4vw,1.55rem);line-height:1.35;margin-bottom:1.2rem}
.options{list-style:none;padding:0;display:grid;gap:.7rem}
.opt{width:100%;display:grid;grid-template-columns:2rem 1fr auto;gap:.8rem;align-items:center;text-align:left;padding:.85rem 1rem;border:1.5px solid var(--line);border-radius:14px;background:var(--surface);color:var(--ink)}
.opt:not(:disabled):hover{border-color:var(--brand);background:var(--brand-l)}
.opt:disabled{cursor:default;color:var(--ink)}
.key{width:2rem;height:2rem;border-radius:8px;background:var(--brand-l);color:var(--brand);font-weight:800;display:grid;place-items:center}
.tag{font-size:.82rem;font-weight:800}
.opt.correct{border-color:var(--ok);background:var(--okbg)}.opt.correct .tag,.opt.correct .key{color:var(--ok)}
.opt.wrong{border-color:var(--bad);background:var(--badbg)}.opt.wrong .tag,.opt.wrong .key{color:var(--bad)}
.feedback{min-height:1.6rem;margin-top:1rem;font-weight:600}
.feedback.good{color:var(--ok)}.feedback.bad{color:var(--bad)}
.actions{display:flex;justify-content:space-between;gap:.8rem;margin-top:1.2rem}
.actions.center{justify-content:center;flex-wrap:wrap}
.enter{animation:enter .35s ease}
@keyframes enter{from{opacity:0;transform:translateX(18px)}to{opacity:1;transform:none}}
.result{text-align:center}
.result h2{font-size:1.5rem}
.big{display:flex;flex-direction:column;align-items:center;margin:1rem 0 .4rem}
.big span{font-size:clamp(4rem,16vw,6rem);font-weight:800;line-height:1;color:var(--brand)}
.big small{color:var(--muted)}
.badge{display:inline-block;margin-top:.8rem;background:var(--yellow);color:#2a1668;font-weight:800;font-size:.9rem;padding:.3rem .9rem;border-radius:99px}
.muted{color:var(--muted);margin-top:.6rem}
.result .actions{margin-top:1.6rem}
.foot{padding:1.4rem 0;font-size:.85rem;color:var(--muted);border-top:1px solid var(--line)}
@media(max-width:860px){.pick{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:1fr}}
@media(max-width:700px){.hero-grid{grid-template-columns:1fr}.art{max-width:220px;justify-self:start}}
@media(max-width:480px){#history li{grid-template-columns:4rem 1fr 2.4rem;}.h-date{display:none}.actions{flex-direction:column-reverse}.actions .btn{justify-content:center}.meta{font-size:.82rem}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}