:root{--blue:#0b4f8a;--light:#e9f7ff;--orange:#f59e0b;--red:#ef4444;--green:#16a34a;--text:#18324a;--muted:#60758a}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:linear-gradient(180deg,#eaf7ff,#fff6e8);color:var(--text)}
.app{max-width:760px;margin:0 auto;padding:16px}.hero{text-align:center;padding:18px 8px 10px}.brand{display:inline-flex;flex-direction:column;align-items:center;margin-bottom:8px}
.bubble{font-size:30px;font-weight:900;color:var(--blue);background:white;border:3px solid #b9e6ff;border-radius:26px;padding:10px 20px;box-shadow:0 8px 18px rgba(11,79,138,.14)}
.bubble span{color:var(--orange)}.bubble .plus{color:var(--red)}.tagline{font-size:13px;color:var(--muted);margin-top:4px}
h1{font-size:30px;margin:8px 0;color:var(--blue)}.hero p{font-size:16px;line-height:1.45;margin:0 auto;max-width:620px}
.card{background:#fff;border-radius:22px;padding:20px;margin:14px 0;box-shadow:0 10px 30px rgba(24,50,74,.14);border:1px solid rgba(11,79,138,.08)}
.hidden{display:none!important}label{font-weight:700;display:block;margin:12px 0 6px}input{width:100%;padding:14px;border:2px solid #d8e7f3;border-radius:14px;font-size:16px}
.mini-lesson{background:var(--light);border-left:6px solid var(--blue);padding:12px 14px;border-radius:14px;margin:16px 0}.mini-lesson h3{margin:0 0 6px;color:var(--blue)}.mini-lesson p{margin:8px 0}
button{width:100%;border:none;border-radius:14px;padding:15px 18px;font-size:17px;font-weight:800;margin-top:12px;cursor:pointer}.primary{background:var(--blue);color:white}.secondary{background:#fff;border:2px solid var(--blue);color:var(--blue)}
.topline{display:flex;justify-content:space-between;gap:8px;font-weight:800;color:var(--blue);margin-bottom:10px}#scorePill{background:#fff3d9;color:#9a5b00;padding:4px 10px;border-radius:999px}
.progress{height:12px;background:#e6edf4;border-radius:999px;overflow:hidden;margin-bottom:18px}#progressBar{height:100%;width:0;background:linear-gradient(90deg,var(--orange),var(--blue));transition:.3s}
#questionText{font-size:22px;line-height:1.35;color:var(--text)}.choice{display:block;width:100%;text-align:left;background:#f7fbff;border:2px solid #dceaf5;border-radius:16px;padding:14px;margin:10px 0;font-weight:700;color:var(--text)}
.choice:hover{border-color:var(--blue)}.choice.correct{background:#eafbea;border-color:var(--green)}.choice.wrong{background:#ffecec;border-color:var(--red)}
.feedback{border-radius:14px;padding:12px;margin-top:12px;font-weight:800}.feedback.ok{background:#eafbea;color:#166534}.feedback.no{background:#ffecec;color:#991b1b}
.result-badge{margin:auto;width:90px;height:90px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--light);color:var(--blue);font-weight:900;border:5px solid #b9e6ff}
.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}.result-grid div{background:#f7fbff;border-radius:16px;padding:14px;text-align:center}.result-grid strong{font-size:24px;color:var(--blue);display:block}.result-grid span{font-size:13px;color:var(--muted)}
.review-item{padding:12px;border-radius:14px;margin:10px 0;background:#f7fbff;border-left:5px solid #d8e7f3}.review-item.missed{border-left-color:var(--red);background:#fff7f7}.small{font-size:14px;color:var(--muted)}footer{text-align:center;color:var(--muted);font-size:13px;padding:20px 0}
@media(max-width:520px){.app{padding:10px}.bubble{font-size:24px}.card{padding:16px;border-radius:18px}h1{font-size:26px}#questionText{font-size:20px}.result-grid{grid-template-columns:1fr}}
@media print{body{background:white}.hero,#startScreen,#quizScreen,button,footer{display:none!important}.card{box-shadow:none;border:0}.review-item{break-inside:avoid}}