:root{color-scheme:light;--ink:#352934;--plum:#563449;--deep:#402437;--muted:#6d5d68;--paper:#f8f4f1;--line:#e7dde3;--lilac:#f0e7ef;--white:#fff;--red:#8b364b;--rose:#fbeaf0}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.5 system-ui,sans-serif;min-height:100vh;display:flex;flex-direction:column}
header{border-bottom:1px solid var(--line);background:#fffaf8}
.bar,main,footer,#storage{width:min(100% - 36px,820px);margin-inline:auto}
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 0}
.controls{display:flex;gap:8px;align-items:center}
button,select{font:inherit;color:inherit}
button{cursor:pointer}
button:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #936991;outline-offset:3px}
.brand{display:flex;align-items:center;gap:10px;border:0;background:none;text-align:left;padding:0;font-weight:850;letter-spacing:.1em;font-size:.82rem}
.brand small{display:block;letter-spacing:.08em;font-size:.62rem;color:var(--muted)}
.logo{display:grid;place-items:center;width:40px;height:40px;background:var(--plum);color:#fff;border-radius:12px;font-size:1.4rem;letter-spacing:0}
select,.quiet{background:white;border:1px solid var(--line);border-radius:12px;padding:8px 11px;font-size:.83rem;font-weight:700}
main{padding:32px 0 24px;flex:1}
footer{border-top:1px solid var(--line);padding:15px 0 20px;color:var(--muted);font-size:.78rem}
footer span{margin:0 5px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.panel{background:white;border:1px solid var(--line);border-radius:24px;padding:clamp(18px,4vw,34px);box-shadow:0 8px 24px #56344909}
.hero{background:var(--lilac);border-color:#e4d6e4}
.eyebrow{font-size:.76rem;font-weight:800;letter-spacing:.10em;text-transform:uppercase;color:var(--plum);margin:0 0 8px}
h1,h2,p{margin-top:0}
h1{font-size:clamp(1.9rem,5vw,3.25rem);line-height:1.05;letter-spacing:-.045em;margin-bottom:12px}
h2{font-size:clamp(1.2rem,3vw,1.65rem);line-height:1.3;letter-spacing:-.02em;margin-bottom:18px}
p:last-child{margin-bottom:0}
.muted,.meta{color:var(--muted)}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:16px 0}
.metric{border:1px solid var(--line);border-radius:17px;background:white;padding:12px 14px;color:var(--muted);font-size:.84rem}
.metric strong{display:block;color:var(--plum);font-size:1.48rem;line-height:1.25}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0 12px}
.action,.option{border:1px solid var(--line);border-radius:14px;background:white;box-shadow:0 3px 0 var(--line);font-weight:750;padding:11px 15px}
.action.primary{background:var(--plum);border-color:var(--plum);box-shadow:0 3px 0 var(--deep);color:white}
.action:disabled{opacity:.49;cursor:default}
.action:not(:disabled):active,.option:not(:disabled):active{transform:translateY(2px);box-shadow:none}
.meta{display:flex;justify-content:space-between;gap:10px;margin-bottom:8px;font-size:.85rem;font-weight:700}
progress{display:block;width:100%;height:12px;border:none;border-radius:9px;overflow:hidden;appearance:none;background:var(--lilac);margin-bottom:20px}
progress::-webkit-progress-bar{background:var(--lilac)}
progress::-webkit-progress-value{background:#845c7a;border-radius:9px}
progress::-moz-progress-bar{background:#845c7a;border-radius:9px}
.options{display:grid;gap:10px}
.option{display:flex;gap:12px;align-items:center;text-align:left;padding:12px;width:100%;font-weight:600}
.option:disabled{cursor:default}
.option:not(:disabled):hover{background:#f9f3f8;border-color:#bc9fb7}
.option strong{flex:none;display:grid;place-items:center;width:32px;height:32px;border-radius:8px;background:var(--lilac);color:var(--plum)}
.option.correct{background:var(--lilac);border-color:#a47a9c;box-shadow:0 3px 0 #dcc9db}
.option.incorrect{background:var(--rose);border-color:#d69bad;box-shadow:0 3px 0 #efd2dd}
.option.correct strong{background:var(--plum);color:white}
.option.incorrect strong{background:var(--red);color:white}
.feedback{margin-top:16px;border-radius:14px;background:var(--lilac);padding:14px 16px}
.feedback.error{background:var(--rose)}
.feedback p{margin:6px 0}
.feedback a{font-size:.86rem;color:var(--plum);font-weight:700}
#storage{color:var(--red);padding-bottom:12px;font-size:.84rem}
@media(max-width:460px){.bar,main,footer,#storage{width:calc(100% - 24px)}.brand{gap:6px}.logo{width:32px;height:32px}.controls{gap:5px}.quiet,select{padding:7px}.metric{padding:9px;font-size:.72rem}.meta{font-size:.76rem}.actions .action{flex:auto}.bar{padding:12px 0}main{padding-top:20px}}
.option.selected{background:var(--lilac);border-color:#bc9fb7}