:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--bg:#f6f3ee;--surface:#fff;--surface-2:#f0ece6;--border:#e3ddd4;--border-strong:#8f879c;--text:#1c1a24;--text-muted:#595464;--accent:#5b3fd9;--accent-hover:#4c30c8;--on-accent:#fff;--accent-soft:#ece7ff;--accent-text:#4c30c8;--correct:#1a7f45;--correct-soft:#dff5e8;--correct-text:#135e33;--wrong:#c6342c;--wrong-soft:#fde4e1;--wrong-text:#8f231c;--bar-muted:#8f879c;--spark:#ffc53d;--segment-active:#fff;--tint-violet-fg:#4c30c8;--tint-violet-bg:#ece7ff;--tint-blue-fg:#1f5fbf;--tint-blue-bg:#e2edff;--tint-green-fg:#146c3b;--tint-green-bg:#dcf5e6;--tint-amber-fg:#9a4a00;--tint-amber-bg:#ffecd0;--banner-from:#4c30c8;--banner-to:#7b52f0;--shadow:0 1px 2px #1c1a240f, 0 8px 24px #1c1a2412;--radius:20px;--radius-sm:14px;--font:ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--ease-out:cubic-bezier(.22, 1, .36, 1);--ease-spring:cubic-bezier(.34, 1.56, .64, 1)}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#121119;--surface:#1c1b26;--surface-2:#262433;--border:#2f2d3d;--border-strong:#6e6982;--text:#f3f1fa;--text-muted:#aea9bf;--accent:#9d8cff;--accent-hover:#b0a2ff;--on-accent:#140f2e;--accent-soft:#2d2852;--accent-text:#b8adff;--correct:#3fcf80;--correct-soft:#15352a;--correct-text:#86e8b0;--wrong:#ff6f66;--wrong-soft:#401d1d;--wrong-text:#ffaaa4;--bar-muted:#6e6982;--segment-active:#3a3750;--tint-violet-fg:#b8adff;--tint-violet-bg:#2d2852;--tint-blue-fg:#8ab8ff;--tint-blue-bg:#1b2b47;--tint-green-fg:#7fe3aa;--tint-green-bg:#173626;--tint-amber-fg:#ffb86b;--tint-amber-bg:#3d2a14;--shadow:0 1px 2px #0006, 0 8px 24px 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i.on{background:var(--accent-text)}.q-text{letter-spacing:-.01em;margin-bottom:16px;font-size:1.3125rem;font-weight:800}.q-text:focus{outline:none}.options{gap:10px;display:grid}.option{border:2px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);width:100%;min-height:56px;color:var(--text);text-align:left;cursor:pointer;isolation:isolate;transition:border-color .15s, background-color .15s, transform .12s var(--ease-out);grid-template-columns:32px 1fr auto;align-items:center;gap:12px;padding:10px 14px 10px 10px;font-size:1rem;font-weight:600;line-height:1.3;display:grid;position:relative;overflow:hidden}.option:not(:disabled):hover{border-color:var(--accent);background:var(--accent-soft)}.option:not(:disabled):active{transform:scale(.98)}.option:disabled{cursor:default;opacity:1}.option-letter{background:var(--surface-2);border-radius:10px;place-items:center;width:32px;height:32px;font-size:.9375rem;font-weight:800;transition:background-color 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.option-end{color:var(--correct-text)}.option.is-wrong{border-color:var(--wrong);background:var(--wrong-soft);animation:.42s ease-in-out shake}.option.is-wrong:before{background:color-mix(in srgb, var(--wrong) 18%, transparent)}.option.is-wrong .option-letter{background:var(--wrong);color:var(--on-status)}.option.is-wrong .option-end{color:var(--wrong-text)}.option.is-other{border-color:var(--border)}@keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.035)}to{transform:scale(1)}}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-6px)}40%{transform:translate(5px)}60%{transform:translate(-3px)}80%{transform:translate(2px)}}.reveal{animation:fade-up .36s var(--ease-out) .12s both;gap:10px;margin-top:16px;display:grid}@keyframes fade-up{0%{opacity:0;transform:translateY(8px)}}.verdict{align-items:center;gap:8px;font-size:1.125rem;font-weight:800;display:flex}.verdict:focus{outline:none}.verdict:focus-visible{outline:3px solid var(--accent)}.verdict svg{flex:none}.verdict.is-correct{color:var(--correct-text)}.verdict.is-wrong{color:var(--wrong-text)}.fact{border-radius:var(--radius-sm);background:var(--surface-2);gap:6px;padding:12px 14px 14px;display:grid}.fact-label{color:var(--accent-text);letter-spacing:.06em;text-transform:uppercase;align-items:center;gap:6px;font-size:.8125rem;font-weight:800;display:inline-flex}.explanation{font-size:1.0625rem}.meta{gap:6px;padding:0 2px;display:grid}.meta-line{color:var(--text-muted);align-items:flex-start;gap:8px;font-size:.875rem;display:flex}.meta-line svg{flex:none;margin-top:2px}.source{color:var(--text-muted);font-size:.875rem}.inline-error{background:var(--wrong-soft);color:var(--wrong-text);border-radius:12px;margin-top:12px;padding:10px 14px;font-weight:600}.actions{justify-content:flex-end;margin-top:20px;display:flex}.actions .btn{min-width:168px}@media (max-width:479px){.actions .btn{width:100%}}.key-hint{color:var(--text-muted);justify-content:center;align-items:center;gap:6px;margin-top:14px;font-size:.8125rem;display:flex}@media (hover:none){.key-hint{display:none}}.result{text-align:center;justify-items:center;gap:12px;display:grid}.eyebrow{color:var(--text-muted);font-size:.9375rem;font-weight:700}.score{letter-spacing:-.03em;font-size:3.5rem;font-weight:800;line-height:1}.score-msg{font-size:1.125rem;font-weight:700}.tiles{gap:8px;margin:4px 0 8px;display:flex}.tile{width:40px;height:40px;color:var(--on-status);animation:tile-in .36s var(--ease-spring) both;border-radius:10px;place-items:center;display:grid}.tile svg{width:22px;height:22px}.tile.is-correct{background:var(--correct)}.tile.is-wrong{background:var(--wrong)}@keyframes tile-in{0%{opacity:0;transform:scale(.4)}}.share-row{justify-items:center;gap:8px;width:100%;display:grid}.share-row .btn{min-width:200px}.share-fallback{border:2px solid var(--border-strong);background:var(--surface-2);width:100%;min-height:96px;color:var(--text);font:inherit;resize:none;border-radius:12px;padding:10px}.countdown{gap:2px;margin-top:8px;display:grid}.countdown-label{color:var(--text-muted);justify-content:center;align-items:center;gap:6px;font-size:.9375rem;display:inline-flex}.countdown-time{font-variant-numeric:tabular-nums;letter-spacing:.02em;font-size:1.75rem;font-weight:800}.section-title{align-items:center;gap:8px;margin-bottom:14px;font-size:1.125rem;font-weight:800;display:flex}.section-title svg{color:var(--accent-text)}.stat-grid{grid-template-columns:repeat(4,1fr);gap:8px;margin:0 0 20px;display:grid}.stat{text-align:center;background:var(--surface-2);border-radius:12px;flex-direction:column-reverse;justify-content:flex-end;align-items:center;gap:2px;padding:10px 4px;display:flex}.stat dt{color:var(--text-muted);font-size:.8125rem;line-height:1.2}.stat dd{flex-direction:column;align-items:center;gap:4px;margin:0;font-size:1.625rem;font-weight:800;line-height:1.1;display:flex}.stat dd svg{color:var(--accent-text)}.dist-title{margin-bottom:8px;font-size:1rem;font-weight:800}.dist{gap:4px;margin:0;padding:0;list-style:none;display:grid}.dist li{grid-template-columns:20px 1fr;align-items:center;gap:8px;display:grid}.dist-label{text-align:right;font-variant-numeric:tabular-nums;font-weight:700}.dist-track{align-items:center;gap:8px;min-width:0;display:flex}.dist-bar{height:20px;width:calc(var(--share,0) * (100% - 32px));background:var(--bar-muted);transform-origin:0;animation:grow .6s var(--ease-out) both;border-radius:0 4px 4px 0}.dist li.is-today .dist-bar{background:var(--accent)}.dist-count{font-variant-numeric:tabular-nums;color:var(--text-muted);font-weight:700}.dist li.is-today .dist-count{color:var(--text)}.empty-note{color:var(--text-muted)}.review-list{gap:8px;margin:0;padding:0;list-style:none;display:grid}.review-list details{background:var(--surface-2);border-radius:12px}.review-list summary{cursor:pointer;border-radius:12px;grid-template-columns:22px 1fr 20px;align-items:start;gap:10px;padding:12px 14px;font-weight:700;list-style:none;display:grid}.review-list summary::-webkit-details-marker{display:none}.review-list summary svg{margin-top:1px}.review-list .chev{color:var(--text-muted);transition:transform .2s var(--ease-out)}.review-list details[open] .chev{transform:rotate(180deg)}.review-list .is-correct svg:first-child{color:var(--correct)}.review-list .is-wrong svg:first-child{color:var(--wrong)}.review-body{gap:8px;padding:0 14px 14px 48px;display:grid}.review-body .answer-line{font-size:.9375rem}.review-body .answer-line strong{font-weight:800}.practice-head{gap:12px;display:grid}.practice-title-row{justify-content:space-between;align-items:baseline;gap:12px;padding:0 4px;display:flex}.chips{scrollbar-width:thin;gap:8px;margin:0 -2px;padding:2px 2px 6px;display:flex;overflow-x:auto}.session{align-items:center;gap:6px;display:inline-flex}.chip-btn{border:2px solid var(--border-strong);background:var(--surface);min-height:40px;color:var(--text);cursor:pointer;white-space:nowrap;border-radius:999px;flex:none;align-items:center;gap:6px;padding:8px 14px;font-size:.9375rem;font-weight:700;display:inline-flex}.chip-btn[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}.chip-btn:disabled{opacity:.5;cursor:not-allowed}.modal{overscroll-behavior:contain;border-radius:var(--radius);background:var(--surface);width:min(560px,100% - 24px);max-height:calc(100dvh - 32px);color:var(--text);border:0;padding:0;overflow-y:auto;box-shadow:0 24px 64px #00000059}.modal[open]{animation:modal-in .24s var(--ease-out)}.modal::backdrop{background:#0c0a168c}@keyframes modal-in{0%{opacity:0;transform:translateY(16px)scale(.98)}}.modal-inner{padding:16px 20px 24px}.modal-head{justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px;display:flex}.modal-head h2{font-size:1.375rem;font-weight:800}.modal-head h2:focus{outline:none}.howto{gap:14px;display:grid}.howto-banner{background:linear-gradient(135deg, var(--banner-from), var(--banner-to));border-radius:18px;place-items:center;height:88px;display:grid;position:relative;overflow:hidden}.howto-banner:before,.howto-banner:after{content:"";background:#ffffff14;border-radius:50%;position:absolute}.howto-banner:before{width:160px;height:160px;top:-70px;right:-40px}.howto-banner:after{width:110px;height:110px;bottom:-60px;left:-30px}.howto-tiles{gap:8px;display:flex;position:relative}.howto-tile{color:#16121f;width:38px;height:38px;animation:tile-in .42s var(--ease-spring) both;border-radius:11px;place-items:center;display:grid;box-shadow:0 6px 14px #140a3c40}.howto-tile.is-correct{background:#3fcf80}.howto-tile.is-wrong{background:#ff6f66}.howto-tile:nth-child(2){animation-delay:80ms}.howto-tile:nth-child(3){animation-delay:.16s}.howto-tile:nth-child(4){animation-delay:.24s}.howto-tile:nth-child(5){animation-delay:.32s}.howto-spark{color:#ffd166;animation:1.4s ease-in-out infinite alternate twinkle;position:absolute}.howto-spark-a{top:14px;left:16%}.howto-spark-b{animation-delay:.7s;bottom:14px;right:17%}@keyframes twinkle{0%{opacity:.35;transform:scale(.8)rotate(0)}to{opacity:1;transform:scale(1.1)rotate(20deg)}}.howto-lead{color:var(--text-muted)}.howto-steps{gap:12px;margin:0;padding:0;list-style:none;display:grid}.howto-step{animation:fade-up .36s var(--ease-out) both;grid-template-columns:40px 1fr;align-items:start;gap:14px;display:grid;position:relative}.howto-step:not(:last-child):before{content:"";background:var(--border);border-radius:2px;width:2px;position:absolute;top:44px;bottom:-8px;left:19px}.howto-step:nth-child(2){animation-delay:70ms}.howto-step:nth-child(3){animation-delay:.14s}.howto-step:nth-child(4){animation-delay:.21s}.step-icon{width:40px;height:40px;box-shadow:0 0 0 4px var(--surface);border-radius:50%;place-items:center;display:grid;position:relative}.step-text{gap:2px;padding-top:9px;display:grid}.step-text strong{font-weight:800}.step-text span{color:var(--text-muted);font-size:.9375rem;line-height:1.4}.howto-practice{border-radius:var(--radius-sm);background:var(--surface-2);align-items:flex-start;gap:12px;padding:12px 14px;font-size:.9375rem;display:flex}.howto-practice svg{color:var(--accent-text);flex:none}.howto-cta{background:linear-gradient(to bottom, transparent, var(--surface) 20px);margin:-8px -20px -24px;padding:20px;position:sticky;bottom:0}@media (max-width:360px){.brand-name{font-size:.9375rem}.stat dd{font-size:1.375rem}}