:root{--bg:#f6f7fb;--card:#fff;--text:#172033;--muted:#667085;--line:#d9deea;--brand:#3454d1;--brand2:#5d75e8;--good:#177245;--bad:#b42318;--warn:#b7791f;--chip:#eef2ff;--shadow:0 10px 30px rgba(17,24,39,.08);--radius:18px;--bottom:78px;--top:56px;--tap:46px;--font:16px}[data-theme=dark]{--bg:#0d1220;--card:#161d2f;--text:#f2f4f8;--muted:#aab4c5;--line:#30384f;--brand:#8ea2ff;--brand2:#aab8ff;--good:#58d68d;--bad:#ff8a80;--warn:#ffd166;--chip:#222b45;--shadow:0 10px 30px rgba(0,0,0,.25)}[data-large=true]{--font:18px}*{box-sizing:border-box}html{font-size:var(--font)}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.45;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button,a.primary,a.secondary,a.ghost{min-height:var(--tap);border:0;border-radius:14px;padding:.75rem 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.topbar{background:#0d1220e0}.brand{display:flex;align-items:center;gap:10px;font-weight:850;letter-spacing:-.02em;color:var(--text);text-decoration:none}.logo{width:36px;height:36px;border-radius:13px;background:linear-gradient(135deg,var(--brand),#10b981);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:var(--shadow)}.status{display:flex;gap:6px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.pill,.badge{border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:999px;padding:.35rem .6rem;font-size:.82rem;white-space:nowrap}.brandPill{background:var(--chip);color:var(--brand);border-color:transparent}.timer.warn{color:var(--warn);font-weight:900}.timer.danger{color:var(--bad);font-weight:950;animation:pulse 1s infinite}@keyframes 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var(--line)}.small{min-height:36px;padding:.45rem .7rem;border-radius:10px;font-size:.85rem}.full{width:100%;margin-top:14px}.nav{position:fixed;left:0;right:0;bottom:0;z-index:30;height:calc(var(--bottom) + env(safe-area-inset-bottom));padding:8px 8px calc(8px + env(safe-area-inset-bottom));background:var(--card);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(6,1fr);gap:4px}.nav a{min-height:50px;padding:4px 2px;background:transparent;color:var(--muted);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;border-radius:14px;font-size:.68rem;text-decoration:none}.nav a:hover{background:var(--chip);color:var(--brand)}.nav .ico{font-size:1.1rem}label{font-weight:750;display:block;margin:.45rem 0 .25rem}select,input{width:100%;min-height:46px;border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:14px;padding:.7rem .85rem}.toggle{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 0;border-bottom:1px solid var(--line)}.toggle input{width:22px;height:22px}.questionGrid{display:grid;gap:12px}.passage{max-height:48dvh;overflow:auto;-webkit-overflow-scrolling:touch}details.card summary{cursor:pointer;font-weight:850}.choice{width:100%;min-height:58px;display:flex;align-items:flex-start;gap:12px;text-align:left;background:var(--card);color:var(--text);border:2px solid var(--line);margin:9px 0}.choice .letter{flex:0 0 32px;height:32px;border-radius:999px;background:var(--chip);color:var(--brand);display:grid;place-items:center;font-weight:950}.choice.selected{border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 20%,transparent)}.choice.correct{border-color:var(--good);background:color-mix(in srgb,var(--good) 10%,var(--card))}.choice.incorrect{border-color:var(--bad);background:color-mix(in srgb,var(--bad) 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12px;text-align:center;color:var(--muted)}.error{color:var(--bad);font-weight:700}.centerCard{max-width:440px;margin:40px auto}.plusRibbon{display:flex;gap:8px;flex-wrap:wrap;margin:.65rem 0}.plusRibbon span{border:1px solid rgba(255,255,255,.45);background:#ffffff29;color:#fff;border-radius:999px;padding:.25rem .55rem;font-size:.78rem;font-weight:800}.qnav{display:grid;grid-template-columns:repeat(10,1fr);gap:6px}.qnav button{min-height:38px;padding:0;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--text);font-weight:850}.qnav button.current{outline:3px solid color-mix(in srgb,var(--brand) 28%,transparent);border-color:var(--brand)}.qnav button.answered{background:color-mix(in srgb,var(--good) 14%,var(--card));border-color:color-mix(in srgb,var(--good) 45%,var(--line))}.qnav 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ul{padding-left:1.25rem}.card li{margin:.35rem 0}:root{--radius: 10px;--shadow: none;--top: 48px;--bottom: 62px;--tap: 38px}body{line-height:1.38}.plusRibbon,.hero:after{display:none!important}.hero{background:var(--card)!important;color:var(--text)!important;border:1px solid var(--line)!important;box-shadow:none!important}.hero .muted,.hero p{color:var(--muted)!important}.card{padding:12px!important;margin:8px 0!important;border-radius:10px!important;box-shadow:none!important}h1{font-size:1.35rem!important;margin-bottom:.4rem!important}h2{font-size:1.08rem!important;margin-bottom:.35rem!important}h3{font-size:1rem!important}.topbar{min-height:48px!important;padding:6px 10px!important;background:var(--card)!important}.logo{width:28px!important;height:28px!important;border-radius:7px!important;box-shadow:none!important;background:var(--text)!important}.brand{gap:8px!important}.pill,.badge{border-radius:6px!important;padding:.2rem 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