:root{
  --bg:#071014; --ink:#101820; --charcoal:#182227; --muted:#63716c;
  --green:#19a36f; --green2:#0f6d4a; --pale:#f4f7f5; --line:#dbe5df; --white:#fff;
  --max:1180px; --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Arial,Helvetica,sans-serif;color:#23302b;background:#fff;line-height:1.65}
a{color:inherit;text-decoration:none}
img{width:100%;display:block}
.container{width:min(var(--max),calc(100% - 44px));margin:auto}
.header{position:fixed;inset:0 0 auto;z-index:50;background:rgba(7,16,20,.86);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.09)}
.navbar{height:76px;display:flex;align-items:center;justify-content:space-between}
.logo{font-weight:900;letter-spacing:.14em;color:#fff;font-size:18px}.logo span{color:var(--green)}
.navlinks{display:flex;align-items:center;gap:28px}.navlinks a{color:#e7eeee;font-weight:700;font-size:14px}.navlinks a:hover{color:#fff}
.nav-cta{padding:10px 16px;border:1px solid rgba(255,255,255,.35);border-radius:999px}
.menu{display:none;background:none;color:#fff;border:0;font-size:28px}
.hero{min-height:100vh;position:relative;color:#fff;display:flex;align-items:center;background:#071014}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,10,13,.88),rgba(3,10,13,.38)),url('../img/hero.jpg') center/cover no-repeat}
.hero .container{position:relative;z-index:2;padding-top:80px}
.eyebrow{display:inline-block;color:#9ce2c0;text-transform:uppercase;letter-spacing:.19em;font-size:12px;font-weight:900;margin-bottom:22px}
.hero h1,.page-hero h1{font-size:clamp(42px,7vw,84px);line-height:.98;margin:0 0 26px;font-weight:900;max-width:1030px}
.hero p,.page-hero p{font-size:clamp(18px,2vw,23px);max-width:790px;color:#edf5f1;margin:0 0 38px}
.actions{display:flex;gap:16px;flex-wrap:wrap}.btn{display:inline-block;background:var(--green);color:#fff;font-weight:900;padding:14px 22px;border-radius:999px;border:1px solid var(--green)}
.btn:hover{background:var(--green2)}.btn.secondary{background:transparent;border-color:rgba(255,255,255,.45)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:72px;max-width:960px}.stat{border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.07);border-radius:18px;padding:20px}.stat strong{font-size:30px;display:block;color:#fff}.stat span{color:#cfe0d8;font-size:13px}
.section{padding:96px 0}.section.dark{background:#101a1f;color:#fff}.section.light{background:var(--pale)}
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:64px;align-items:center}.split.rev>div:first-child{order:2}
h2{font-size:clamp(32px,4.5vw,55px);line-height:1.06;margin:0 0 24px;color:#13201b}.dark h2{color:#fff}
h3{font-size:23px;margin:0 0 12px;color:#13201b}.dark h3{color:#fff}
p{color:#4d5b55;margin:0 0 18px}.dark p{color:#d9e6df}
.lead{font-size:20px;color:#3a4842}.image-card{border-radius:var(--radius);overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.16);background:#dce5e0}.image-card img{height:470px;object-fit:cover}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:38px}.card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:0 16px 50px rgba(16,24,32,.06)}.card p{font-size:15.5px}
.card.dark-card{background:#142126;border-color:rgba(255,255,255,.12)}
.service-num{color:var(--green);font-weight:900;letter-spacing:.12em;font-size:12px;margin-bottom:16px}
.feature-band{padding:34px;background:#0f191e;border-radius:24px;border:1px solid rgba(255,255,255,.1);display:grid;grid-template-columns:repeat(6,1fr);gap:14px}.step{padding:18px;border-radius:16px;background:rgba(255,255,255,.06)}.step b{color:#fff;display:block;margin-bottom:7px}.step span{color:#b8c8c1;font-size:13px}
.project-panel{background:#fff;border-radius:24px;overflow:hidden;box-shadow:0 24px 70px rgba(0,0,0,.12)}.project-body{padding:34px}.facts{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:24px}.fact{background:var(--pale);border-radius:14px;padding:16px}.fact b{display:block;color:#13201b}
blockquote{margin:32px 0;border-left:5px solid var(--green);padding:6px 0 6px 24px;font-weight:900;font-size:26px;line-height:1.3;color:#13201b}
.page-hero{min-height:58vh;display:flex;align-items:center;color:#fff;background:#071014;position:relative;padding-top:80px}
.page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,10,13,.86),rgba(3,10,13,.42)),url('../img/bess-site.jpg') center/cover no-repeat}.page-hero .container{position:relative;z-index:2}
.contact-box{background:#fff;border-radius:24px;padding:34px;box-shadow:0 20px 70px rgba(0,0,0,.12);border:1px solid var(--line)}
label{font-weight:800;display:block;margin:12px 0 6px}input,select,textarea{width:100%;padding:13px 14px;border:1px solid #cfdad5;border-radius:12px;font:inherit}button.btn{cursor:pointer}
.cta{padding:90px 0;background:linear-gradient(135deg,var(--green2),#0d3f31);text-align:center;color:#fff}.cta h2{color:#fff}.cta p{color:#e8f5ee;max-width:760px;margin:0 auto 28px}
.footer{background:#071014;color:#d8e4df;padding:54px 0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}.footer h4{margin:0 0 14px;color:#fff}.footer p,.footer a{color:#c4d0cb}.small{font-size:13px;color:#8fa099;margin-top:30px;border-top:1px solid rgba(255,255,255,.1);padding-top:18px}
@media(max-width:900px){
  .menu{display:block}.navlinks{display:none;position:absolute;top:76px;left:0;right:0;background:#071014;flex-direction:column;align-items:flex-start;padding:22px}.navlinks.open{display:flex}
  .stats,.grid,.split,.feature-band,.footer-grid{grid-template-columns:1fr}.split.rev>div:first-child{order:initial}
  .section{padding:70px 0}.image-card img{height:300px}.facts{grid-template-columns:1fr}
}