.behaviour-hero{background:linear-gradient(135deg,#18384e 0%,#285a69 100%);color:#fff;padding:82px max(24px,calc((100vw - 1100px)/2));position:relative;overflow:hidden}.behaviour-hero:after{content:"";position:absolute;width:260px;height:260px;border:48px solid rgba(247,180,72,.18);border-radius:50%;right:-55px;top:-80px}.behaviour-hero .eyebrow{color:var(--sun)}.behaviour-hero h1{font-size:clamp(3.2rem,7vw,6.2rem);white-space:normal;max-width:900px;margin:14px 0 22px}.behaviour-hero p:last-child{font-size:1.18rem;line-height:1.65;max-width:680px}.behaviour-index{max-width:1100px;margin:auto;padding:70px 28px}.behaviour-index h2{font-size:clamp(2.2rem,4vw,3.8rem);margin:8px 0 18px}.behaviour-index-intro{max-width:760px;margin-bottom:38px}.behaviour-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.behaviour-card{display:flex;flex-direction:column;min-height:285px;padding:26px;text-decoration:none;border:1px solid var(--line);background:#fff;transition:.2s}.behaviour-card:hover,.behaviour-card:focus-visible{transform:translateY(-4px);box-shadow:6px 7px 0 #edc487}.behaviour-card:first-child{grid-column:span 2;background:var(--sun)}.behaviour-card small{font-weight:700;letter-spacing:.13em;color:#8a5724}.behaviour-card h3{font-size:1.8rem;margin:22px 0 12px}.behaviour-card p{margin:0 0 18px}.behaviour-card b{margin-top:auto}.decision-box{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:34px 0}.decision-box>div{background:var(--pale);padding:18px;border-top:4px solid var(--sun)}.decision-box strong{display:block;margin-bottom:5px}.article-meta{color:#667985;font-size:.86rem;margin-top:18px}.article-wrap article h3{font-size:1.35rem;margin:30px 0 8px}.article-wrap article .checklist{list-style:none;padding:0}.article-wrap article .checklist li{padding-left:30px;position:relative}.article-wrap article .checklist li:before{content:"✓";position:absolute;left:0;color:#9c5b27;font-weight:700}.warning{padding:24px 28px;background:#fff0e9;border-left:5px solid #bb542f;margin:34px 0}.series-links{margin-top:38px;padding:26px;background:#eef4f2}.series-links h2{font-size:1.55rem!important;margin:0 0 12px!important}.series-links a{display:block;margin:8px 0;font-weight:700}.source-note{font-size:.88rem;color:#61727b}.hub-link{display:inline-block;margin-top:18px;font-weight:700}@media(max-width:760px){.behaviour-hero{padding:58px 22px}.behaviour-cards{grid-template-columns:1fr}.behaviour-card:first-child{grid-column:auto}.decision-box{grid-template-columns:1fr}}