*{box-sizing:border-box} :root{--navy:#164e63;--cyan:#cffafe;--ink:#172033;--muted:#64748b;--line:#dbe4ee;--bg:#f3f7fb;--white:#fff;--green:#15803d;--red:#b91c1c}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.5}a{color:inherit;text-decoration:none}.topbar{background:var(--navy);color:#fff;padding:14px max(16px,calc((100% - 1120px)/2));display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}.brand{font-weight:800}.topbar nav{display:flex;gap:8px;flex-wrap:wrap}.topbar nav a{padding:7px 10px;border-radius:9px;font-size:.92rem}.topbar nav a:hover{background:#ffffff20}.container{width:min(1120px,100% - 28px);margin:24px auto 48px}.hero{background:linear-gradient(135deg,#164e63,#0e7490);color:white;border-radius:22px;padding:clamp(22px,5vw,42px);margin-bottom:18px}.hero h1{font-size:clamp(1.65rem,5vw,2.6rem);line-height:1.1;margin:.35rem 0 .75rem}.eyebrow{font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#a5f3fc}.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:clamp(16px,3vw,24px);box-shadow:0 5px 20px #0f172a08}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.stat{padding:18px}.stat .num{font-size:2rem;font-weight:850;line-height:1.2}.muted{color:var(--muted)}label{display:block;font-weight:700;margin:12px 0 6px}input,select,textarea{width:100%;font:inherit;padding:13px 14px;border:1px solid #cbd5e1;border-radius:12px;background:white;min-height:48px}input:focus,select:focus,textarea:focus{outline:3px solid #a5f3fc;border-color:#0891b2}.btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;border:0;border-radius:12px;padding:12px 18px;font:inherit;font-weight:750;background:var(--navy);color:white;cursor:pointer;min-height:46px}.btn:hover{filter:brightness(1.08)}.btn.secondary{background:#e2e8f0;color:#172033}.btn.success{background:#15803d}.btn.danger{background:#b91c1c}.btn.full{width:100%}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.notice{padding:12px 14px;border-radius:12px;background:#ecfeff;border:1px solid #a5f3fc;margin:12px 0}.error{background:#fef2f2;border-color:#fecaca;color:#991b1b}.success-box{background:#f0fdf4;border:1px solid #bbf7d0;color:#166534;padding:14px;border-radius:12px}.pill{display:inline-block;border-radius:999px;padding:4px 9px;font-size:.78rem;font-weight:750;background:#e2e8f0}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:white}table{width:100%;border-collapse:collapse;min-width:650px}th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:.83rem;text-transform:uppercase;letter-spacing:.04em;color:#475569;background:#f8fafc}tr:last-child td{border-bottom:0}.question-card{margin:16px 0}.question-top{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.progress{height:8px;background:#e2e8f0;border-radius:99px;overflow:hidden;margin:12px 0 18px}.progress span{display:block;height:100%;background:#06b6d4;transition:width .2s}.story{font-size:clamp(1.05rem,3vw,1.3rem);font-weight:650;line-height:1.65;margin:16px 0}.feedback{padding:12px;border-radius:12px;margin-top:12px}.feedback.correct{background:#dcfce7;color:#166534}.feedback.wrong{background:#fee2e2;color:#991b1b}.answer-input{font-size:1.2rem;font-weight:750;text-align:center}.footer{text-align:center;color:var(--muted);font-size:.85rem;padding:18px}.login-wrap{width:min(440px,100% - 28px);margin:7vh auto}.small{font-size:.9rem}.inline-form{display:flex;gap:8px;align-items:end;flex-wrap:wrap}.inline-form>div{flex:1;min-width:140px}.empty{padding:28px;text-align:center;color:var(--muted)}@media(max-width:760px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.topbar{align-items:flex-start}.topbar nav{width:100%}.topbar nav a{padding:7px 8px;font-size:.85rem}.container{margin-top:16px}.grid{grid-template-columns:1fr}.hero{border-radius:17px}.stat .num{font-size:1.7rem}}@media(max-width:380px){.grid-4{gap:8px}.stat{padding:13px}.topbar nav{gap:3px}.topbar nav a{font-size:.8rem}}