:root{--navy:#071b4c;--teal:#08748a;--gold:#cf970f;--light:#f4f8fb;--line:#d7e3e9}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;color:#14233a;background:#f7fafc}header{height:76px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1250px)/2))}.brand{font-weight:950;font-size:28px;letter-spacing:-1px;color:var(--navy);text-decoration:none}.brand span{color:var(--teal)}nav{display:flex;align-items:center;gap:16px}a{color:var(--teal)}nav a{text-decoration:none;font-size:14px}button,.button,select{border:0;background:var(--teal);color:#fff;border-radius:9px;padding:12px 16px;font-size:14px;font-weight:700;cursor:pointer;text-decoration:none;display:inline-block}button:disabled{opacity:.45;cursor:not-allowed}.secondary{background:#eaf2f6;color:var(--navy)}select{background:#f0f6f9;color:var(--navy)}main{max-width:1250px;margin:auto;padding:32px 24px}.hero{background:linear-gradient(125deg,#fff,#f0f8fc 70%,#d5edf7);border:1px solid var(--line);border-radius:20px;display:grid;grid-template-columns:1fr 265px;gap:24px;padding:35px 5%;align-items:center}.hero img{width:100%;max-height:360px;object-fit:contain;filter:drop-shadow(0 15px 13px #0b25432e)}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:800;color:var(--teal)}h1{font-size:clamp(33px,4vw,56px);line-height:1.08;color:var(--navy);margin:15px 0}h2{color:var(--navy);margin:0 0 8px}p{line-height:1.55}.intro>p{max-width:630px;color:#53647b}.chips{display:flex;gap:8px;flex-wrap:wrap}.chips span{background:#e5f1f3;color:#136578;padding:7px 11px;border-radius:20px;font-size:12px;font-weight:700}.price{font-size:35px;font-weight:900;color:var(--navy);margin-top:20px}.price small{font-size:14px;color:#738295;font-weight:500}.helper{font-size:13px}.offers{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:22px 0}.offer,.account,.reader{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px}.offer{display:flex;align-items:center;justify-content:space-between;gap:16px}.offer p{font-size:14px;color:#64748b;margin:0}.offer button,.offer .button{white-space:nowrap}.account{max-width:720px;margin:30px auto}label{display:block;font-size:13px;font-weight:700;margin:15px 0}label input{display:block;width:100%;margin-top:6px;padding:12px;border:1px solid #b9cbd7;border-radius:8px;font-size:15px}.actions{display:flex;gap:10px}#authError{color:#a12034;font-size:13px}.hidden{display:none!important}.readerBar{display:flex;justify-content:space-between;align-items:center}.readerBar p{color:#65768b}.readerLayout{display:grid;grid-template-columns:240px 1fr;gap:20px}aside{border:1px solid var(--line);border-radius:10px;padding:16px;align-self:start}aside h3{margin:0 0 15px}.tocLink{display:block;width:100%;text-align:left;background:transparent;color:var(--navy);padding:9px;border-bottom:1px solid #e8edf0;border-radius:0;font-weight:500}.tocLink:hover{background:#e7f2f5}.small,.note{font-size:12px;color:#64748b}.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:10px;background:var(--light);border-radius:10px 10px 0 0}.toolbar input{width:70px;padding:10px;border:1px solid var(--line);border-radius:8px}.viewer iframe{width:100%;height:76vh;min-height:500px;border:1px solid var(--line);border-radius:0 0 9px 9px}footer{color:#79889b;font-size:12px;text-align:center;padding:32px 0}@media(max-width:850px){header{padding:12px;height:auto;gap:8px;flex-wrap:wrap}nav{gap:9px;flex-wrap:wrap}.hero{grid-template-columns:1fr 135px;padding:23px}.offers{grid-template-columns:1fr}.readerLayout{grid-template-columns:1fr}aside{max-height:210px;overflow:auto}.offer{flex-wrap:wrap}}@media(max-width:510px){.hero{grid-template-columns:1fr}.hero img{max-height:235px;order:-1}.offer{align-items:flex-start}.offer .button{white-space:normal}}