:root{--navy:#10264a;--blue:#1e5db7;--gold:#f4b942;--ink:#18243a;--muted:#64748b;--bg:#f3f6fb;--card:#fff;--green:#13834b;--line:#e0e7f0}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink);line-height:1.6}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.topbar{background:var(--navy);color:#fff;padding:14px max(18px,calc((100% - 1180px)/2));display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{font-size:1.25rem;font-weight:800;color:#fff}.nav{display:flex;gap:16px;flex-wrap:wrap}.nav a{color:#fff}.container{max-width:1180px;margin:0 auto;padding:24px 18px}.hero{background:linear-gradient(120deg,#10264a,#1e5db7 65%,#3476ca);color:white;border-radius:22px;padding:36px;display:grid;grid-template-columns:1.6fr 1fr;gap:20px;align-items:center}.hero h1{font-size:clamp(2rem,4vw,3.3rem);line-height:1.15;margin:0 0 14px}.hero p{font-size:1.1rem;max-width:660px;color:#e7efff}.hero-art{font-size:6rem;text-align:center;filter:drop-shadow(0 10px 12px #081c3d66)}.button,button{display:inline-block;border:0;border-radius:10px;background:var(--gold);color:#18243a;font-weight:800;padding:12px 18px;cursor:pointer;font-size:1rem}.button.secondary{background:#e9f1ff;color:var(--navy)}.stats,.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:22px 0}.stat,.card,.panel{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 5px 20px #172d4a08}.stat strong{font-size:1.7rem;color:var(--blue);display:block}.section-title{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:30px}.book-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.book{background:#fff;border:1px solid var(--line);border-radius:13px;padding:15px;font-weight:700;display:block}.book small{display:block;color:var(--muted);font-weight:400}.ad-placeholder{background:#f9fbff;border:1px dashed #b8c7db;border-radius:8px;min-height:86px;margin:20px 0;display:flex;align-items:center;justify-content:center;color:#8a98aa;font-size:.85rem}.quiz-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:20px}.question-card h1{font-size:1.5rem}.progress{height:9px;background:#e7edf5;border-radius:20px;overflow:hidden}.progress span{display:block;height:100%;background:#1eaf70}.option{display:flex;gap:12px;align-items:center;padding:14px;border:1px solid var(--line);border-radius:12px;background:#fff;margin:10px 0;cursor:pointer}.option input{width:18px;height:18px}.option:has(input:checked){border-color:var(--blue);background:#eff6ff}.review{padding:16px;background:#e8f8ef;border:1px solid #bce8ce;border-radius:12px;margin-top:18px}.muted{color:var(--muted)}.footer{margin-top:44px;background:var(--navy);color:#e9effa;padding:30px 18px;text-align:center}.footer a{color:#fff;margin:0 8px}.table-wrap{overflow:auto}.table{border-collapse:collapse;width:100%;background:white}.table th,.table td{text-align:left;border-bottom:1px solid var(--line);padding:10px;vertical-align:top}.table th{background:#edf3fc}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{margin-bottom:14px}.field label,label{display:block;font-weight:700;margin-bottom:5px}.field input,.field textarea,.field select,input,textarea,select{width:100%;padding:11px;border:1px solid #cbd5e1;border-radius:8px;background:#fff;font:inherit}.notice{background:#fff5d8;border:1px solid #f1d38a;padding:12px;border-radius:10px;margin:14px 0}.success{background:#e8f8ef;border-color:#bce8ce}.danger{background:#fff0f0;border-color:#f0baba}.admin-nav{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.admin-nav a{background:#fff;padding:9px 13px;border:1px solid var(--line);border-radius:8px}.auth-card{max-width:480px;margin:8vh auto;background:white;border-radius:18px;padding:28px;box-shadow:0 10px 40px #13274615}.auth-card label{margin-top:12px}.auth-card button{margin-top:18px;width:100%}.pagination{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}.pill{display:inline-block;background:#e9f1ff;color:#1e5db7;padding:3px 9px;border-radius:999px;font-size:.85rem}@media(max-width:800px){.hero{grid-template-columns:1fr;padding:25px}.hero-art{display:none}.stats,.grid{grid-template-columns:1fr}.book-grid{grid-template-columns:repeat(2,1fr)}.quiz-layout{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.topbar{align-items:flex-start;flex-direction:column}.container{padding:18px 12px}}