:root{--navy:#071A3B;--deep:#07162E;--accent:#0F8B8D;--blue:#087BFF;--mist:#F3F8FB;--line:#CFE0E8;--ink:#1C2E4A;--white:#fff}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--mist);color:var(--ink);line-height:1.55}a{color:#006fe8}.topbar{background:var(--navy);color:white;border-bottom:3px solid var(--accent);padding:18px 5vw;display:flex;justify-content:space-between;gap:18px;align-items:center}.topbar a{color:#fff;text-decoration:none;font-weight:700}.brand{font-weight:800;letter-spacing:.2px}.shell{max-width:1500px;margin:auto;padding:48px 5vw}.hero{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(300px,.75fr);background:white;border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:0 12px 36px rgba(7,26,59,.08)}.hero-main{padding:48px}.hero-side{background:#0C316F;color:white;padding:44px}.eyebrow{color:var(--accent);font-weight:800;letter-spacing:1.5px;text-transform:uppercase}.status{display:inline-block;padding:7px 12px;border:1px solid var(--accent);border-radius:999px;background:#E9F7F5;color:var(--navy);font-weight:800;font-size:13px}.hero h1{font-size:clamp(38px,5vw,72px);line-height:1.02;color:var(--navy);margin:14px 0 12px}.hero h2{font-size:20px;color:var(--navy);margin:0 0 18px}.buttons{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}.btn{display:inline-block;padding:14px 20px;border-radius:12px;text-decoration:none;font-weight:800;border:1px solid #0C4A88}.btn-primary{background:#08A7EA;color:white;border-color:#08A7EA}.btn-secondary{background:var(--navy);color:white}.btn-outline{background:white;color:var(--navy)}.grid4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:34px}.card{background:white;border:1px solid var(--line);border-radius:18px;padding:24px}.card h3{color:var(--navy);margin:0 0 10px}.section-title{color:var(--navy);font-size:34px;margin:48px 0 18px}.chapter-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.chapter-card{background:white;border:1px solid var(--line);border-left:6px solid var(--accent);border-radius:18px;padding:24px}.chapter-card h3{color:var(--navy);margin:4px 0 10px;font-size:24px}.chapter-card .small{font-size:13px;font-weight:800;color:#51667f;text-transform:uppercase}.footer{margin-top:50px;padding:28px 5vw;border-top:2px solid var(--accent);text-align:center;color:var(--navy);background:white}.note{background:#E7F6F4;border-left:5px solid var(--accent);padding:16px 18px;border-radius:12px;margin:22px 0}.cover-mini{display:block;width:min(100%,390px);margin:auto;border-radius:8px;box-shadow:0 14px 30px rgba(0,0,0,.25)}
@media(max-width:980px){.hero{grid-template-columns:1fr}.grid4{grid-template-columns:1fr 1fr}.chapter-grid{grid-template-columns:1fr 1fr}}
@media(max-width:650px){.shell{padding:26px 18px}.hero-main,.hero-side{padding:28px}.grid4,.chapter-grid{grid-template-columns:1fr}.topbar{padding:14px 18px}.hero h1{font-size:42px}.buttons .btn{width:100%;text-align:center}}