/* ============================================================
   Dhanmondi Group — Design System
   Palette: deep navy + steel blue + signature construction orange
   Type: Sora (display) / Inter (body)
   Signature motif: "skyline seam" — abstract skyline silhouette
   cut by a single diagonal orange seam, echoing the DG logo mark.
   ============================================================ */

:root{
  --navy-deep:#071a2e;
  --navy:#0a2540;
  --blue:#1e56a0;
  --blue-soft:#e8f0fb;
  --orange:#f5871f;
  --orange-light:#ffb347;
  --bg:#f6f7f9;
  --white:#ffffff;
  --ink:#171f2b;
  --muted:#5b6472;
  --border:#e3e7ed;

  --font-display:'Sora', 'Segoe UI', sans-serif;
  --font-body:'Inter', 'Segoe UI', sans-serif;

  --container:1180px;
  --radius:10px;
  --shadow-sm:0 1px 3px rgba(7,26,46,.06);
  --shadow-md:0 12px 28px rgba(7,26,46,.10);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--navy-deep);
  line-height:1.15;
  margin:0 0 .5em;
  letter-spacing:-.01em;
}
h1{font-size:clamp(2.1rem,4vw,3.2rem);font-weight:700;}
h2{font-size:clamp(1.6rem,2.6vw,2.2rem);font-weight:700;}
h3{font-size:1.25rem;font-weight:600;}
p{margin:0 0 1em;color:var(--muted);}
a{color:var(--blue);text-decoration:none;}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;}
li{list-style:none;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-display);font-weight:600;font-size:.78rem;
  letter-spacing:.14em;text-transform:uppercase;color:var(--orange);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--orange);display:inline-block;}

.section{padding:88px 0;}
.section--tight{padding:56px 0;}
.section--navy{background:var(--navy-deep);color:#cfd8e3;}
.section--navy h2, .section--navy h3{color:#fff;}
.section--navy p{color:#a9b6c8;}
.section--soft{background:var(--white);}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-display);font-weight:600;font-size:.92rem;
  padding:13px 26px;border-radius:6px;border:1px solid transparent;
  cursor:pointer;transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn-primary{background:var(--orange);color:#fff;}
.btn-primary:hover{background:#e07715;box-shadow:var(--shadow-md);transform:translateY(-1px);}
.btn-outline{border-color:rgba(255,255,255,.4);color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,.1);}
.btn-outline-navy{border-color:var(--navy);color:var(--navy);}
.btn-outline-navy:hover{background:var(--navy);color:#fff;}
.btn:focus-visible, a:focus-visible, button:focus-visible{
  outline:3px solid var(--orange-light);outline-offset:2px;
}

/* ---------------- Header ---------------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(7,26,46,.97);
  backdrop-filter:blur(6px);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;max-width:var(--container);margin:0 auto;
}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-family:var(--font-display);font-weight:700;font-size:1.15rem;}
.brand-mark{
  width:38px;height:38px;border-radius:8px;
  background:linear-gradient(135deg,var(--orange),var(--orange-light));
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-weight:800;color:var(--navy-deep);font-size:1rem;
  flex-shrink:0;
}
.brand small{display:block;font-family:var(--font-body);font-weight:400;font-size:.68rem;color:#8fa0b8;letter-spacing:.06em;}

.main-nav{display:flex;align-items:center;gap:2px;}
.main-nav > ul{display:flex;align-items:center;gap:2px;}
.main-nav a{
  color:#dce4ee;font-size:.92rem;font-weight:500;padding:10px 14px;
  border-radius:6px;display:block;transition:background .15s,color .15s;
  white-space:nowrap;
}
.main-nav a:hover, .main-nav a.active{background:rgba(255,255,255,.08);color:#fff;}
.has-dropdown{position:relative;}
.dropdown{
  position:absolute;top:100%;left:0;background:#fff;min-width:250px;
  border-radius:8px;box-shadow:var(--shadow-md);padding:8px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .15s,transform .15s,visibility .15s;
}
.has-dropdown:hover .dropdown, .has-dropdown:focus-within .dropdown{
  opacity:1;visibility:visible;transform:translateY(0);
}
.dropdown a{color:var(--ink);padding:9px 12px;font-size:.88rem;border-radius:6px;}
.dropdown a:hover{background:var(--blue-soft);color:var(--blue);}

.nav-toggle{
  display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer;
  padding:6px;
}

@media (max-width:960px){
  .nav-toggle{display:block;}
  .main-nav{
    position:fixed;inset:0 0 0 auto;width:min(320px,88%);height:100vh;
    background:var(--navy-deep);flex-direction:column;align-items:stretch;
    padding:90px 20px 30px;transform:translateX(100%);transition:transform .25s ease;
    overflow-y:auto;
  }
  .main-nav.open{transform:translateX(0);}
  .main-nav > ul{flex-direction:column;align-items:stretch;gap:2px;}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:rgba(255,255,255,.04);display:none;margin:4px 0 8px;}
  .has-dropdown.open .dropdown{display:block;}
  .dropdown a{color:#c4cfdd;}
}

/* ---------------- Hero / Skyline seam signature ---------------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,var(--navy-deep) 0%,var(--navy) 100%);
  color:#fff;padding:110px 0 0;
}
.hero-inner{max-width:var(--container);margin:0 auto;padding:0 24px 70px;position:relative;z-index:2;}
.hero h1{color:#fff;max-width:820px;}
.hero p.lead{color:#b7c3d4;max-width:600px;font-size:1.08rem;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px;}

.skyline{position:absolute;left:0;right:0;bottom:0;height:180px;z-index:1;}
.skyline svg{width:100%;height:100%;display:block;}
.seam{
  position:absolute;top:0;left:-10%;width:140%;height:3px;
  background:linear-gradient(90deg,transparent,var(--orange) 30%,var(--orange-light) 55%,transparent);
  transform:rotate(-6deg);transform-origin:left;
  opacity:.85;
}
.seam.seam-1{top:34%;}
.seam.seam-2{top:64%;opacity:.4;}

.hero--page{padding:70px 0 0;}
.hero--page .hero-inner{padding-bottom:56px;}
.hero--page h1{font-size:clamp(1.9rem,3.6vw,2.7rem);}

.breadcrumb{font-size:.85rem;color:#8fa0b8;margin-bottom:18px;}
.breadcrumb a{color:#8fa0b8;}
.breadcrumb a:hover{color:#fff;}

/* ---------------- Stat band ---------------- */
.stat-band{
  background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow-md);
  margin-top:-56px;position:relative;z-index:3;
  display:grid;grid-template-columns:repeat(4,1fr);
}
.stat-band .stat{padding:30px 24px;border-right:1px solid var(--border);}
.stat-band .stat:last-child{border-right:none;}
.stat .num{font-family:var(--font-display);font-weight:800;font-size:2rem;color:var(--navy-deep);}
.stat .num span{color:var(--orange);}
.stat .label{font-size:.85rem;color:var(--muted);margin-top:4px;}
@media (max-width:800px){
  .stat-band{grid-template-columns:repeat(2,1fr);}
  .stat-band .stat{border-bottom:1px solid var(--border);}
}

/* ---------------- Grid / cards ---------------- */
.grid-2{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
@media (max-width:960px){.grid-2{grid-template-columns:1fr;gap:36px;}.grid-3{grid-template-columns:repeat(2,1fr);}.grid-4{grid-template-columns:repeat(2,1fr);}}
@media (max-width:600px){.grid-3, .grid-4{grid-template-columns:1fr;}}

.company-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 24px;transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  height:100%;display:flex;flex-direction:column;
}
.company-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent;}
.company-card .idx{font-family:var(--font-display);font-weight:700;color:var(--border);font-size:1.6rem;margin-bottom:10px;}
.company-card .icon{
  width:46px;height:46px;border-radius:8px;background:var(--blue-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
  color:var(--blue);
}
.company-card h3{margin-bottom:8px;font-size:1.08rem;}
.company-card p{font-size:.92rem;margin-bottom:16px;flex-grow:1;}
.company-card .go{font-family:var(--font-display);font-weight:600;font-size:.85rem;color:var(--orange);}

.placeholder-photo{
  border-radius:var(--radius);overflow:hidden;position:relative;
  background:linear-gradient(135deg,var(--navy) 0%, var(--blue) 100%);
  aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;
}
.placeholder-photo svg{width:60%;opacity:.85;}
.placeholder-photo.tall{aspect-ratio:3/4;}
.placeholder-photo .cap{
  position:absolute;bottom:0;left:0;right:0;padding:14px 18px;
  background:linear-gradient(0deg,rgba(7,26,46,.85),transparent);
  color:#fff;font-family:var(--font-display);font-size:.8rem;font-weight:600;letter-spacing:.04em;
}

/* ---------------- Timeline ---------------- */
.timeline{border-left:2px solid var(--border);margin-left:6px;}
.timeline-item{position:relative;padding:0 0 34px 30px;}
.timeline-item::before{
  content:"";position:absolute;left:-7px;top:4px;width:12px;height:12px;border-radius:50%;
  background:var(--orange);border:3px solid var(--bg);
}
.timeline-item .yr{font-family:var(--font-display);font-weight:700;color:var(--navy-deep);font-size:1.05rem;}
.timeline-item p{margin:4px 0 0;font-size:.94rem;}

/* ---------------- Values / list rows ---------------- */
.check-list li{
  display:flex;gap:12px;align-items:flex-start;margin-bottom:14px;font-size:.96rem;color:var(--ink);
}
.check-list li::before{
  content:"";flex-shrink:0;width:20px;height:20px;margin-top:2px;border-radius:5px;
  background:var(--orange);
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/contain no-repeat;
}

/* ---------------- Contact ---------------- */
.contact-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px;}
.contact-card h3{font-size:1rem;color:var(--navy-deep);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:.85rem;font-weight:600;color:var(--navy-deep);margin-bottom:6px;}
.field input, .field textarea, .field select{
  width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:6px;
  font-family:var(--font-body);font-size:.95rem;background:#fbfcfd;
}
.field input:focus, .field textarea:focus, .field select:focus{
  outline:none;border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-soft);
}
.map-frame{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);}
.map-frame iframe{width:100%;height:340px;border:0;display:block;}

/* ---------------- Footer ---------------- */
.site-footer{background:var(--navy-deep);color:#93a3b8;padding-top:64px;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-grid h4{color:#fff;font-size:.9rem;letter-spacing:.04em;margin-bottom:16px;}
.footer-grid li{margin-bottom:10px;font-size:.9rem;}
.footer-grid a{color:#93a3b8;}
.footer-grid a:hover{color:#fff;}
.footer-brand p{font-size:.9rem;max-width:280px;}
.footer-social{display:flex;gap:10px;margin-top:16px;}
.footer-social a{
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;color:#cfd8e3;
}
.footer-social a:hover{background:var(--orange);border-color:var(--orange);color:#fff;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;
  padding:22px 0;font-size:.82rem;color:#6c7c92;
}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;}}

/* ---------------- Page header band (interior pages) ---------------- */
.subpage-tag{
  display:inline-block;background:var(--orange);color:#fff;font-family:var(--font-display);
  font-weight:700;font-size:.78rem;letter-spacing:.06em;padding:6px 14px;border-radius:20px;
  margin-bottom:18px;text-transform:uppercase;
}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease, transform .5s ease;}
.reveal.in{opacity:1;transform:none;}