:root{--blue:#0947c6;--navy:#041a47;--muted:#53647e}*{box-sizing:border-box}body{margin:0;color:var(--navy);background:radial-gradient(ellipse at 95% 10%,#e7efff,transparent 42%),#f8fafc;font-family:Barlow,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}a:focus-visible{outline:3px solid #0947c6;outline-offset:5px}main{max-width:720px;padding:48px 24px 24px;margin:auto}.skip{position:absolute;left:-9999px;background:white;padding:12px;z-index:2}.skip:focus{left:12px}header{text-align:center}.logo{width:220px;height:auto;display:block;margin:0 auto 28px}.eyebrow{font-size:11px;letter-spacing:1.8px;font-weight:600;color:var(--blue)}h1{font-size:36px;line-height:1.12;letter-spacing:-.8px;margin:16px 0}h1 span{font-weight:400}.intro{color:var(--muted);margin:0 0 30px}.book{display:grid;grid-template-columns:220px 1fr;gap:32px;align-items:center;border:1px solid #dce6f8;border-radius:24px;background:#fff;padding:30px;box-shadow:0 18px 55px #041a4710;position:relative;overflow:hidden}.book-art{padding:14px;background:linear-gradient(145deg,#e9f1ff,#f4f7fc);border-radius:14px}.book-art img{display:block;width:100%;height:auto;box-shadow:5px 10px 18px #041a4724}.tag{font-size:11px;font-weight:700;letter-spacing:1.8px;color:var(--blue);margin:0 0 9px}h2{font-size:34px;line-height:1.03;letter-spacing:-.6px;margin:0 0 16px}.description{font-size:17px;line-height:1.4;margin:0 0 14px}.details{color:var(--muted);font-size:14px;margin:0 0 14px}.price{font-size:26px;font-weight:700;margin-bottom:16px}.price span{display:block;font-weight:400;font-size:12px;color:var(--muted)}.buy{display:flex;align-items:center;justify-content:space-between;background:var(--blue);color:#fff;padding:14px 18px;border-radius:12px;font-size:17px;font-weight:600;min-height:52px;box-shadow:0 6px 14px #0947c622}.buy:hover{background:#0738a8}.checkout{font-size:11px;line-height:1.4;color:var(--muted);margin:10px 0 0}nav{display:grid;gap:12px;margin-top:24px}.link{display:flex;align-items:center;gap:16px;border:1px solid #e2e8f0;border-radius:16px;background:#fff;padding:18px 20px;min-height:80px;transition:background .15s}.link:hover{background:#eef4ff}.icon{width:40px;height:40px;display:grid;place-items:center;flex-shrink:0;background:#edf3ff;border-radius:12px;color:var(--blue);font-size:25px}.link strong{display:block;font-size:17px;font-weight:600}.link small{display:block;font-size:13px;color:var(--muted)}.arrow{margin-left:auto;color:var(--blue);font-size:23px}footer{margin-top:28px;text-align:center;color:var(--muted);font-size:11px}footer p{margin:9px 0}footer a{text-decoration:underline}@media(max-width:560px){main{padding:30px 18px 20px}.logo{width:200px;margin-bottom:24px}h1{font-size:30px}.intro{font-size:15px;margin-bottom:24px}.book{grid-template-columns:112px 1fr;gap:18px;padding:22px 18px;align-items:start}.book-art{padding:7px;margin-top:26px}h2{font-size:27px}.description{font-size:15px}.details{font-size:12px}.price{font-size:24px}.buy{font-size:15px;padding:12px}.checkout{font-size:10px}.link{padding:15px;gap:12px}.link strong{font-size:16px}.link small{font-size:12px}.eyebrow{font-size:10px;letter-spacing:1.1px}}@media(max-width:360px){.book{grid-template-columns:90px 1fr;gap:12px;padding:20px 14px}h2{font-size:24px}.buy{font-size:14px}}