:root{--navy:#12344a;--blue:#12618a;--teal:#138b91;--ink:#263746;--muted:#607484;--paper:#fff;--line:#dce6ec;--pale:#f3f8fc}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#eef3f6;color:var(--ink);font:17px/1.72 Georgia,serif}
a{color:#12618a} .shell{max-width:1160px;margin:auto;background:white;min-height:100vh;box-shadow:0 10px 45px #15344a18}
.hero{background:var(--navy);color:white;padding:28px 34px 38px}.hero img{width:100%;height:auto;max-height:none;object-fit:contain;object-position:center;border-radius:14px;display:block}
.hero .eyebrow{font:700 12px/1.4 Arial,sans-serif;letter-spacing:.16em;text-transform:uppercase;color:#8fe0df;margin:0 0 12px}
.hero h1{font:700 clamp(30px,5vw,54px)/1.08 Georgia,serif;margin:18px 0 10px;max-width:850px}.hero p{font:18px/1.5 Arial,sans-serif;color:#d7e9f1;max-width:760px}
.brand{font:700 15px Arial,sans-serif;letter-spacing:.08em;text-transform:uppercase;color:#8fe0df;margin-top:20px}
.layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:36px;padding:34px}
aside{position:sticky;top:16px;align-self:start;max-height:calc(100vh - 32px);overflow:auto;border:1px solid var(--line);border-radius:14px;padding:18px;background:#fbfdfe}
aside h2{font:700 17px Arial,sans-serif;color:var(--navy);margin:0 0 12px}
aside a{display:block;text-decoration:none;padding:6px 0;border-bottom:1px solid #edf2f5;font:14px/1.4 Arial,sans-serif;color:#345}.content{max-width:760px}
.kicker{font:700 12px Arial,sans-serif;letter-spacing:.13em;text-transform:uppercase;color:var(--teal)}
h1,h2,h3{color:var(--navy);line-height:1.2}h2{font-size:30px;margin:8px 0 18px}h3{font-size:21px}
p{margin:0 0 16px}.intro{font-size:20px;color:#425a6b}.callout{border-left:4px solid var(--teal);background:#f0f8f8;padding:15px 18px;margin:22px 0;border-radius:0 10px 10px 0}
figure{margin:24px 0}figure img,figure svg{width:100%;height:auto;border-radius:12px}figcaption{font:13px/1.4 Arial,sans-serif;color:var(--muted);margin-top:7px}
.chapter-list{list-style:none;padding:0;counter-reset:chap}.chapter-list li{border-bottom:1px solid var(--line);padding:10px 0}
.chapter-list a{text-decoration:none}.chapter-no{font:700 12px Arial,sans-serif;color:var(--teal);margin-right:8px}
.footer{padding:24px 34px;background:#f4f8fa;color:#5b6f7c;font:13px/1.5 Arial,sans-serif}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.button{display:inline-block;background:var(--teal);color:white;text-decoration:none;padding:10px 15px;border-radius:7px;font:700 14px Arial,sans-serif}
.back{font:14px Arial,sans-serif;text-decoration:none}
.chapter-nav{display:flex;justify-content:space-between;gap:12px;margin:36px 0 0;padding-top:18px;border-top:1px solid var(--line);font:14px Arial,sans-serif}
.note{font:14px/1.55 Arial,sans-serif;color:#526a78;background:#f6f9fb;border:1px solid var(--line);padding:14px;border-radius:10px}
@media(max-width:800px){.layout{display:block;padding:20px}.layout aside{position:static;max-height:none;margin-bottom:26px}.hero{padding:18px}.hero img{width:100%;height:auto;max-height:none;object-fit:contain}}
@media print{body{background:white}.shell{box-shadow:none}.layout{display:block;padding:0 24px}aside,.actions,.chapter-nav{display:none}.hero{background:white;color:#12344a;padding:0}.hero img{max-height:250px}.hero p{color:#345}a{color:inherit;text-decoration:none}}

/* Company-personalization features added for the demonstration edition */
.brand-panel{background:#eef7f7;border-left:5px solid #147d80;padding:1.1rem 1.25rem;margin:1.5rem 0;border-radius:8px}
.brand-panel h3{margin-top:0;color:#124f55}
.owner-letter{background:#f7f5ef;border:1px solid #e4dfd2;padding:1.5rem;border-radius:10px;margin:1.5rem 0}
.owner-letter .signature{font-weight:700;color:#124f55;margin-top:1.25rem}
.part-label{display:inline-block;background:#124f55;color:white;padding:.35rem .65rem;border-radius:3px;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}
.profile-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:1rem;margin:1rem 0}
.profile-card{border:1px solid #d8e2e2;border-radius:8px;padding:1rem;background:#fff}
.profile-card h3{margin-top:0}
.demo-note{font-size:.9rem;background:#fff7e7;border:1px solid #e8d5a8;padding:1rem;border-radius:8px}
.cta-panel{background:#124f55;color:#fff;padding:1.35rem;border-radius:10px;margin:1.5rem 0}
.cta-panel a{color:#fff;text-decoration:underline}