:root{
  --brand:#b01217;
  --text:#111827;
  --muted:#6b7280;
  --line:#e5e7eb;
  --max:1200px;
  --shadow:0 16px 40px rgba(0,0,0,.12);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Noto Sans",sans-serif;
  color:var(--text);
  line-height:1.6;
  background:#fff;
}

a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}

.container{
  width:min(100%, var(--max));
  margin:0 auto;
  padding:0 28px;
}

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* HEADER */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  transition:background .2s ease, border-color .2s ease;
}
.header-row{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 0;
}
.brand-logo{height:34px; width:auto}

.nav{
  display:flex;align-items:center;gap:18px;
  font-weight:600;
}
.nav a{padding:10px 8px;border-bottom:2px solid transparent}
.nav a.active{border-color:var(--brand)}
.nav-icons{display:flex;align-items:center;gap:10px;margin-left:8px}
.icon-btn{
  background:transparent;border:0;cursor:pointer;padding:8px;border-radius:10px;
  color:currentColor;
}
.lang-pill{
  font-size:14px;padding:7px 10px;border:1px solid rgba(255,255,255,.55);
  border-radius:999px;
}

/* overlay header (on hero) */
.header--overlay{background:transparent;color:#fff}
.header--overlay .nav a{color:#fff}
.header--overlay .nav a.active{border-color:#fff}
.header--overlay .icon-btn{color:#fff}
.header--overlay .lang-pill{color:#fff}

/* scrolled header (after hero) */
.header--solid{
  background:#fff;color:#111;border-bottom:1px solid var(--line);
}
.header--solid .nav a{color:#111}
.header--solid .nav a.active{border-color:var(--brand)}
.header--solid .icon-btn{color:#111}
.header--solid .lang-pill{color:#111;border-color:var(--line)}

/* Dropdown */
.dropdown{position:relative}
.dropdown > a::after{content:" ▾";opacity:.8}
.dropdown-menu{
  position:absolute;top:46px;left:0;
  min-width:240px;
  background:#fff;color:#111;
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--shadow);
  padding:8px;
  opacity:0;transform:translateY(-6px);
  pointer-events:none;
}
.dropdown-menu a{display:block;padding:10px 10px;border-radius:10px}
.dropdown-menu a:hover{background:#f5f5f5}
.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu{
  opacity:1;transform:translateY(0);
  pointer-events:auto;
}

/* HERO */
.hero{
  height:78vh;
  min-height:520px;
  background:url("/assets/images/hero.jpg") center/cover no-repeat;
  position:relative;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(0,0,0,.25), rgba(0,0,0,.10));
}
.hero-inner{position:relative; height:100%}

/* SECTIONS */
.section{padding:70px 0}
.section--soft{background:#fafafa}
.section-title{max-width:980px;margin:0 auto 24px}
.section-title.center{text-align:center}
.eyebrow{
  color:var(--brand);
  font-weight:700;
  letter-spacing:.3px;
  margin-bottom:10px;
}
.section-title h2{
  margin:0;
  font-size:38px;
  line-height:1.2;
  font-weight:800;
}
.muted{color:var(--muted)}

/* Buttons */
.btn{
  display:inline-block;
  background:var(--brand);
  color:#fff;
  padding:14px 22px;
  border-radius:0;
  font-weight:800;
  letter-spacing:.2px;
  margin-top:14px;
}

/* Carousel */
.carousel{position:relative;margin-top:26px}
.carousel-track{
  display:flex;
  gap:26px;
  overflow:hidden;
  scroll-behavior:smooth;
  padding:6px 10px;
}
.service-card{
  flex:0 0 300px;
  background:#fff;
  border:1px solid var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.06);
  padding:28px;
  min-height:220px;
}
.service-card h3{margin:0 0 12px;font-size:22px}
.readmore{display:inline-block;margin-top:18px;font-weight:800}
.readmore{color:#111}
.readmore:hover{color:var(--brand)}
.carousel-btn{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  width:56px;height:56px;border-radius:999px;
  border:0;
  background:var(--brand);
  color:#fff;
  cursor:pointer;
}
.carousel-btn.prev{left:-18px}
.carousel-btn.next{right:-18px}

/* Projects grid */
.projects-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:22px;
  margin-top:28px;
}
.project{
  background:#fff;
  border:1px solid var(--line);
  overflow:hidden;
}
.project img{width:100%;height:260px;object-fit:cover}

/* Two-column (About/Core Values) */
.two-col{
  display:grid;
  grid-template-columns: 1.15fr 1fr;
  gap:42px;
  align-items:start;
}
.framed-image{
  border-left:18px solid var(--brand);
  padding-left:18px;
}
.framed-image img{width:100%;height:320px;object-fit:cover}

.core-values{grid-column:2 / 3}
.core-values h3{margin:0 0 8px;font-size:30px}
.core-values ul{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:18px}
.core-values li{display:grid;gap:6px}
.core-values strong{color:var(--brand);letter-spacing:.2px}
.core-values span{color:var(--muted)}

/* ESG split */
.esg-split{
  display:grid;
  grid-template-columns: 1fr 1.2fr;
  gap:40px;
  align-items:center;
}
.esg-right img{width:100%;height:320px;object-fit:cover}

/* Client logos */
.logo-row{
  display:grid;
  grid-template-columns:repeat(5, 1fr);
  gap:26px;
  margin-top:26px;
  align-items:center;
}
.logo-box{
  background:#fff;
  padding:18px;
  box-shadow:0 10px 25px rgba(0,0,0,.08);
  border:1px solid #eee;
}
.logo-box img{height:46px;object-fit:contain;margin:0 auto}

/* Footer */
.footer{
  background:#111;
  color:#c7c7c7;
  padding:54px 0;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1fr 1.6fr 1fr;
  gap:38px;
  align-items:start;
}
.footer-logo{height:52px;width:auto}
.footer-small{margin-top:18px;font-size:13px;opacity:.7}
.footer-contact .kv{
  display:grid;grid-template-columns:64px 1fr;
  gap:14px;padding:6px 0;
}
.footer-contact .kv span:first-child{color:#fff;font-weight:800}
.footer-links{
  display:grid;
  gap:10px;
}
.footer-links a{color:#fff;opacity:.9}
.footer-links a:hover{opacity:1;text-decoration:underline}

/* Floating buttons */
.float-buttons{
  position:fixed;
  right:22px;
  bottom:22px;
  display:flex;
  flex-direction:column;
  gap:12px;
  z-index:60;
}
.float-btn{
  width:54px;height:54px;border-radius:999px;
  background:var(--brand);
  color:#fff;
  border:0;
  font-weight:900;
  cursor:pointer;
  display:grid;place-items:center;
  box-shadow:0 10px 25px rgba(0,0,0,.25);
}
.float-btn.phone{background:#666}

/* Mobile */
.nav-toggle{display:none}

@media (max-width: 980px){
  .projects-grid{grid-template-columns:1fr}
  .project img{height:240px}
  .logo-row{grid-template-columns:repeat(2, 1fr)}
  .two-col{grid-template-columns:1fr}
  .core-values{grid-column:auto}
  .esg-split{grid-template-columns:1fr}
  .carousel-btn.prev{left:0}
  .carousel-btn.next{right:0}
}

@media (max-width: 820px){
  .nav-toggle{
    display:inline-flex;
    background:#fff;
    border:1px solid var(--line);
    padding:10px 12px;
    border-radius:10px;
    font-weight:800;
  }

  .header--overlay .nav-toggle{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}

  .nav{
    position:absolute;
    top:68px; left:0; right:0;
    background:#fff;
    color:#111;
    padding:14px 18px;
    border-bottom:1px solid var(--line);
    display:none;
    flex-direction:column;
    align-items:flex-start;
  }
  .nav.is-open{display:flex}
  .nav a{color:#111}
  .nav-icons{margin-left:0}
  .dropdown-menu{
    position:static;
    opacity:1;
    transform:none;
    pointer-events:auto;
    box-shadow:none;
    border:0;
    padding:0;
  }
}