:root{--navy:#1b2028;--slate:#475368;--red:#9b2c2c;--sky:#e0edf3;--ink:#222}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:16px/1.65 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink)}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}img{max-width:100%}
.nav{position:sticky;top:0;z-index:9;background:rgba(27,32,40,.95);backdrop-filter:blur(6px)}.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand img{height:46px}.nav nav a{color:#fff;text-decoration:none;margin-left:28px;font-weight:500;opacity:.85}.nav nav a:hover{opacity:1;color:#f3c4c4}
#t,.burger{display:none}
.hero{background:linear-gradient(rgba(27,32,40,.82),rgba(71,83,104,.85)),url(images/diamondbco-banner.jpg) center/cover;color:#fff;padding:110px 0 80px}
.eyebrow{text-transform:uppercase;letter-spacing:.2em;font-size:.8rem;color:#f3c4c4}.hero h1{font:700 clamp(2.2rem,5vw,3.6rem)/1.1 Georgia,serif;margin:.2em 0 .5em}
.lead{max-width:780px;font-size:1.1rem;opacity:.95}
.stats{display:flex;gap:20px;flex-wrap:wrap;margin:36px 0}.stats div{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:16px 24px}.stats b{display:block;font-size:1.6rem}.stats span{font-size:.85rem;opacity:.8}
.partners{display:flex;gap:16px;flex-wrap:wrap}.partners img{height:90px;background:#fff;border-radius:10px;padding:10px}
section{padding:80px 0}section h2{font:700 2.2rem Georgia,serif;margin:0 0 30px;color:var(--navy)}
.cat{margin-bottom:46px}.cat h3{color:var(--red);text-transform:uppercase;letter-spacing:.12em;font-size:1rem;border-bottom:2px solid #eee;padding-bottom:8px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px}.grid.three{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.card,.person{background:#fff;border:1px solid #e6e9ee;border-radius:14px;padding:22px;box-shadow:0 2px 10px rgba(0,0,0,.04);display:flex;flex-direction:column;transition:.2s}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(0,0,0,.08)}
.logo{height:100px;display:flex;align-items:center;justify-content:center;margin-bottom:12px}.logo img{max-height:100px;object-fit:contain}
.card h4,.person h4{margin:0 0 6px;font-size:1.15rem;color:var(--navy)}.card p,.card ul{margin:.4em 0;font-size:.95rem;color:#444}
.btn{margin-top:auto;padding-top:12px;color:var(--red);font-weight:600;text-decoration:none}
.alt{background:var(--sky)}.role{color:var(--slate);font-weight:600;font-size:.9rem;margin:0 0 8px}.person p{font-size:.93rem}
.links a{display:inline-block;margin-right:10px;font-size:.85rem;font-weight:600;color:var(--red)}
.dark{background:var(--slate);color:#fff}.dark h2{color:#fff}.dark a{color:#fff}
footer{background:var(--navy);color:#bbb;text-align:center;padding:40px 0}footer img{height:60px;margin:0 10px;vertical-align:middle}footer .bfi{background:#fff;padding:6px;border-radius:6px}
@media(max-width:800px){.burger{display:block;color:#fff;font-size:1.6rem;cursor:pointer}.nav nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--navy);flex-direction:column;padding:10px 24px}
#t:checked~nav{display:flex}.nav nav a{margin:10px 0}.hero{padding:70px 0 50px}}