@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&display=swap");

:root {
  --ink: #101820;
  --navy: #142536;
  --slate: #52616f;
  --line: #d8dde2;
  --paper: #f6f4ef;
  --white: #ffffff;
  --bronze: #b4874d;
  --bronze-dark: #8c6535;
  --shadow: 0 18px 60px rgba(16, 24, 32, 0.14);
  --max: min(1760px, 94vw);
  --nav-font: "Space Grotesk", Inter, ui-sans-serif, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--white);
  line-height: 1.6;
  opacity: 0;
  animation: pageFade 760ms cubic-bezier(0.22, 1, 0.36, 1) 90ms forwards;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
.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;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(16, 24, 32, 0.84);
  color: var(--white);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  transform: translateY(-100%);
  animation: headerDrop 760ms cubic-bezier(0.22, 1, 0.36, 1) 220ms forwards;
  transition: background 260ms ease, box-shadow 260ms ease, color 260ms ease, border-color 260ms ease;
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
  color: var(--ink);
  box-shadow: 0 8px 30px rgba(16, 24, 32, 0.08);
}
.nav-wrap {
  width: var(--max);
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--nav-font);
  font-weight: 800;
  letter-spacing: 0;
  transition: transform 220ms ease, opacity 220ms ease;
}
.brand:hover { transform: translateY(-1px); }
.brand img { width: 48px; height: 48px; object-fit: contain; border-radius: 4px; background: #fff; transition: transform 360ms ease; }
.brand:hover img { transform: rotate(-2deg) scale(1.04); }
.brand span { max-width: 185px; line-height: 1.1; }
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid currentColor;
  background: transparent;
  color: inherit;
  border-radius: 4px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 220ms ease, transform 220ms ease, border-color 220ms ease;
}
.nav-toggle:hover { transform: translateY(-1px); background: rgba(255,255,255,0.08); }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  content: "";
  position: relative;
}
.nav-toggle span::before { position: absolute; top: -7px; }
.nav-toggle span::after { position: absolute; top: 7px; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { transition: transform 220ms ease, top 220ms ease, opacity 220ms ease; }
.nav-toggle.is-open span { background: transparent; }
.nav-toggle.is-open span::before { top: 0; transform: rotate(45deg); background: currentColor; }
.nav-toggle.is-open span::after { top: 0; transform: rotate(-45deg); background: currentColor; }
.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.35vw, 18px);
  font-family: var(--nav-font);
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.site-nav a {
  position: relative;
  opacity: 0.9;
  padding: 8px 0;
  border-bottom: 0;
  transition: opacity 220ms ease, color 220ms ease, transform 220ms ease;
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 1px;
  background: var(--bronze);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 260ms cubic-bezier(0.22, 1, 0.36, 1);
}
.site-nav a:hover, .site-nav a.active { opacity: 1; transform: translateY(-1px); }
.site-nav a:hover::after, .site-nav a.active::after { transform: scaleX(1); transform-origin: left; }
.site-nav .btn::after { display: none; }
.site-nav > .btn {
  min-height: 38px;
  padding: 8px 13px;
  border-radius: 999px;
  font-size: 0.78rem;
  line-height: 1;
  white-space: nowrap;
  letter-spacing: 0.02em;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 12px 18px;
  border: 1px solid var(--bronze);
  border-radius: 3px;
  background: var(--bronze);
  color: #fff;
  font-weight: 750;
  cursor: pointer;
  box-shadow: 0 0 0 rgba(180, 135, 77, 0);
  transition: transform 240ms cubic-bezier(0.22, 1, 0.36, 1), background 220ms ease, border-color 220ms ease, box-shadow 240ms ease;
}
.btn:hover { transform: translateY(-2px); background: var(--bronze-dark); border-color: var(--bronze-dark); box-shadow: 0 12px 28px rgba(180, 135, 77, 0.24); }
.btn.ghost { background: transparent; color: inherit; border-color: rgba(255,255,255,0.65); }
.site-header.is-scrolled .btn.ghost, .btn.outline { border-color: var(--bronze); color: var(--ink); background: transparent; }
.btn.dark { background: var(--ink); border-color: var(--ink); }

.hero {
  min-height: 88vh;
  color: #fff;
  display: grid;
  align-items: end;
  position: relative;
  isolation: isolate;
  background: var(--ink);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: linear-gradient(90deg, rgba(16,24,32,0.82), rgba(16,24,32,0.38)), var(--hero-image, url("https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=1800&q=80")) center/cover;
  transform: scale(1.045);
  animation: heroDrift 14s ease-in-out infinite alternate;
}
.hero.compact { min-height: 48vh; }
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 26%;
  background: linear-gradient(transparent, rgba(16,24,32,0.78));
  z-index: -1;
}
.hero-inner {
  width: var(--max);
  margin: 0 auto;
  padding: 112px 0 82px;
}
.hero-inner > * {
  opacity: 0;
  transform: translateY(22px);
  animation: heroRise 820ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.hero-inner > *:nth-child(1) { animation-delay: 360ms; }
.hero-inner > *:nth-child(2) { animation-delay: 480ms; }
.hero-inner > *:nth-child(3) { animation-delay: 600ms; }
.hero-inner > *:nth-child(4) { animation-delay: 720ms; }
.eyebrow {
  color: var(--bronze);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.76rem;
  font-weight: 800;
}
h1, h2, h3 { line-height: 1.08; margin: 0 0 18px; }
h1 { font-size: clamp(2.4rem, 6vw, 5.7rem); max-width: 980px; }
h2 { font-size: clamp(2rem, 3.6vw, 3.4rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 18px; color: inherit; }
.lead { font-size: clamp(1rem, 1.6vw, 1.24rem); max-width: 790px; color: rgba(255,255,255,0.86); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.page-section { padding: 88px 0; }
.page-section.paper { background: var(--paper); }
.page-section.dark { background: var(--ink); color: #fff; }
.container { width: var(--max); margin: 0 auto; }
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.7fr);
  gap: 42px;
  align-items: end;
  margin-bottom: 38px;
}
.section-head p { color: var(--slate); }
.dark .section-head p { color: rgba(255,255,255,0.72); }
.grid { display: grid; gap: 22px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 26px;
  min-height: 100%;
  transition: transform 280ms cubic-bezier(0.22, 1, 0.36, 1), box-shadow 280ms ease, border-color 280ms ease, background 280ms ease;
}
.dark .card { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.14); }
.card p, .muted { color: var(--slate); }
.dark .card p, .dark .muted { color: rgba(255,255,255,0.72); }
.stats {
  margin-top: -52px;
  position: relative;
  z-index: 5;
}
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #fff;
  box-shadow: var(--shadow);
  border-radius: 6px;
  overflow: hidden;
}
.stat { padding: 30px; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat strong { display: block; font-size: 2rem; line-height: 1; color: var(--bronze-dark); margin-bottom: 8px; }
.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 52px;
  align-items: center;
}
.image-stack {
  display: grid;
  grid-template-columns: 1fr 0.72fr;
  gap: 16px;
  align-items: end;
}
.image-stack img {
  width: 100%;
  height: 440px;
  object-fit: cover;
  border-radius: 4px;
}
.image-stack img:last-child { height: 300px; margin-bottom: -38px; }
.service-card, .cert-card, .team-card {
  position: relative;
  overflow: hidden;
  transition: transform 280ms cubic-bezier(0.22, 1, 0.36, 1), box-shadow 280ms ease, border-color 280ms ease;
}
.service-card::before, .cert-card::before, .team-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(180,135,77,0.14), transparent 42%);
  opacity: 0;
  transition: opacity 280ms ease;
}
.service-card:hover, .project-card:hover, .cert-card:hover, .team-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow);
  border-color: rgba(180,135,77,0.45);
}
.service-card:hover::before, .cert-card:hover::before, .team-card:hover::before { opacity: 1; }
.service-icon {
  width: 42px;
  height: 42px;
  border: 1px solid var(--bronze);
  color: var(--bronze-dark);
  display: grid;
  place-items: center;
  border-radius: 3px;
  margin-bottom: 22px;
  font-weight: 900;
}
.service-detail-intro {
  align-items: start;
}
.service-detail-image {
  margin: 0;
  min-height: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  background: #dfe4e8;
  box-shadow: var(--shadow);
}
.service-detail-image img {
  width: 100%;
  height: 460px;
  object-fit: cover;
}
.project-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.project-card {
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
  transition: opacity 260ms ease, transform 280ms cubic-bezier(0.22, 1, 0.36, 1), box-shadow 280ms ease, border-color 280ms ease;
}
.project-card figure { margin: 0; position: relative; overflow: hidden; aspect-ratio: 4 / 3; background: #dfe4e8; }
.project-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 640ms cubic-bezier(0.22, 1, 0.36, 1), filter 320ms ease; }
.project-card:hover img { transform: scale(1.08); filter: saturate(1.08) contrast(1.04); }
.project-card .tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(16,24,32,0.82);
  color: #fff;
  border-radius: 3px;
  padding: 6px 10px;
  font-size: 0.76rem;
  transform: translateY(0);
  transition: transform 260ms ease, background 260ms ease;
}
.project-card:hover .tag { transform: translateY(-2px); background: rgba(180,135,77,0.94); }
.project-body { padding: 20px; }
.project-meta { color: var(--slate); font-size: 0.9rem; margin-bottom: 12px; }
.project-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: -6px 0 14px;
}
.project-facts span {
  border: 1px solid rgba(180,135,77,0.34);
  border-radius: 999px;
  color: var(--bronze-dark);
  background: rgba(180,135,77,0.08);
  padding: 5px 9px;
  font-size: 0.78rem;
  font-weight: 800;
}
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 30px;
}
.filter-btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 999px;
  padding: 9px 14px;
  cursor: pointer;
  transition: color 220ms ease, background 220ms ease, border-color 220ms ease, transform 220ms ease, box-shadow 220ms ease;
}
.filter-btn.active, .filter-btn:hover { border-color: var(--bronze); background: var(--bronze); color: #fff; transform: translateY(-1px); box-shadow: 0 10px 22px rgba(180,135,77,0.18); }
.search-input, .form-control {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 3px;
  min-height: 48px;
  padding: 12px 14px;
  background: #fff;
  color: var(--ink);
  transition: border-color 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}
.search-input:focus, .form-control:focus {
  border-color: var(--bronze);
  box-shadow: 0 0 0 4px rgba(180,135,77,0.12);
  outline: 0;
}
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.step { background: #fff; padding: 24px; min-height: 164px; transition: transform 260ms ease, background 260ms ease; }
.step:hover { transform: translateY(-4px); background: #fbfaf7; }
.step span { color: var(--bronze-dark); font-weight: 900; }
.client-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border: 1px solid var(--line);
  border-bottom: 0;
  border-right: 0;
}
.client-name {
  min-height: 92px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 14px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--slate);
  background: #fff;
  font-weight: 700;
  transition: color 220ms ease, background 220ms ease, transform 220ms ease;
}
.client-name:hover { color: var(--ink); background: #fbfaf7; transform: translateY(-2px); }
.bangladesh-section {
  position: relative;
  overflow: hidden;
}
.bangladesh-section::before {
  content: "বাংলাদেশ";
  position: absolute;
  right: clamp(18px, 5vw, 78px);
  top: 34px;
  color: rgba(180, 135, 77, 0.08);
  font-size: clamp(3rem, 10vw, 9rem);
  font-weight: 900;
  line-height: 1;
  pointer-events: none;
}
.bd-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.78fr);
  gap: 46px;
  align-items: center;
}
.bd-locations {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}
.bd-locations span,
.bd-ribbon span {
  border: 1px solid rgba(180,135,77,0.38);
  color: var(--bronze-dark);
  background: rgba(255,255,255,0.72);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.84rem;
  font-weight: 800;
}
.bd-map-card {
  min-height: 430px;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 38% 34%, rgba(180,135,77,0.2), transparent 26%),
    linear-gradient(145deg, #fff, #f6f1e7);
  border-radius: 10px;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 0.62fr;
  gap: 24px;
  align-items: stretch;
  padding: 28px;
  position: relative;
  overflow: hidden;
}
.bd-map-card::before {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(20,37,54,0.08);
  border-radius: 10px;
  pointer-events: none;
}
.bd-map-card::after {
  content: "Bangladesh";
  position: absolute;
  bottom: 22px;
  right: 26px;
  color: rgba(16,24,32,0.2);
  font-family: var(--nav-font);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.78rem;
}
.bd-map-field {
  position: relative;
  min-height: 360px;
  border-radius: 8px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(20,37,54,0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(20,37,54,0.06) 1px, transparent 1px),
    radial-gradient(circle at 48% 48%, rgba(20,37,54,0.1), transparent 48%),
    rgba(255,255,255,0.58);
  background-size: 48px 48px, 48px 48px, auto, auto;
  border: 1px dashed rgba(20,37,54,0.16);
}
.bd-map-field::before {
  content: "";
  position: absolute;
  left: 20%;
  top: 8%;
  width: 50%;
  height: 78%;
  background: linear-gradient(145deg, rgba(20,37,54,0.9), rgba(28,56,74,0.86));
  clip-path: polygon(55% 0%, 72% 10%, 66% 24%, 82% 36%, 77% 53%, 91% 66%, 72% 78%, 63% 100%, 48% 88%, 35% 94%, 27% 78%, 12% 72%, 20% 55%, 8% 42%, 24% 33%, 18% 18%, 40% 12%);
  opacity: 0.18;
  filter: blur(1px);
}
.bd-route {
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(180,135,77,0.72), transparent);
  transform-origin: left center;
}
.bd-route.route-a { width: 34%; left: 45%; top: 38%; transform: rotate(23deg); }
.bd-route.route-b { width: 31%; left: 51%; top: 47%; transform: rotate(51deg); }
.bd-route.route-c { width: 39%; left: 43%; top: 39%; transform: rotate(67deg); }
.bd-pin {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bronze);
  border: 2px solid #fff;
  position: absolute;
  box-shadow: 0 0 0 8px rgba(180,135,77,0.18);
  animation: pulseDot 2.8s ease-in-out infinite;
  z-index: 2;
}
.bd-pin::after {
  content: "";
  position: absolute;
  inset: -9px;
  border-radius: 50%;
  background: rgba(180,135,77,0.14);
  z-index: -1;
}
.bd-pin i {
  position: absolute;
  left: 19px;
  top: -9px;
  color: #fff;
  font-style: normal;
  font-size: 0.72rem;
  font-weight: 800;
  white-space: nowrap;
  background: rgba(16,24,32,0.86);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 999px;
  padding: 4px 8px;
  box-shadow: 0 8px 20px rgba(16,24,32,0.14);
}
.bd-pin.dhaka { left: 42%; top: 33%; }
.bd-pin.tejgaon { left: 48%; top: 39%; animation-delay: 180ms; }
.bd-pin.noakhali { left: 65%; top: 58%; animation-delay: 360ms; }
.bd-pin.hatia { left: 60%; top: 72%; animation-delay: 540ms; }
.bd-pin.chattogram { left: 72%; top: 78%; animation-delay: 720ms; }
.bd-map-legend {
  align-self: center;
  position: relative;
  z-index: 1;
  border-left: 1px solid rgba(20,37,54,0.12);
  padding-left: 24px;
}
.bd-map-legend strong {
  display: block;
  font-family: var(--nav-font);
  font-size: 1.05rem;
  margin-bottom: 14px;
}
.bd-map-legend span {
  display: block;
  color: var(--slate);
  font-size: 0.94rem;
  margin-bottom: 12px;
}
.bd-ribbon {
  background: #101820;
  color: #fff;
  border-top: 1px solid rgba(255,255,255,0.1);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.bd-ribbon .container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 18px 0;
}
.bd-ribbon span {
  color: rgba(255,255,255,0.86);
  background: rgba(255,255,255,0.06);
  border-color: rgba(180,135,77,0.38);
}
.cta-band {
  background: linear-gradient(90deg, rgba(16,24,32,0.9), rgba(16,24,32,0.62)), url("https://images.unsplash.com/photo-1503387762-592deb58ef4e?auto=format&fit=crop&w=1700&q=80") center/cover;
  color: #fff;
  padding: 78px 0;
}
.cta-band .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.site-footer {
  background: #0c1218;
  color: #fff;
  padding: 64px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.7fr 1fr 1fr;
  gap: 34px;
}
.footer-grid p, .footer-grid a { color: rgba(255,255,255,0.72); }
.footer-grid a { display: block; margin: 8px 0; transition: color 220ms ease, transform 220ms ease; }
.footer-grid a:hover, .subfooter a:hover { color: #fff; transform: translateY(-1px); }
.footer-brand { display: flex; gap: 12px; align-items: center; margin-bottom: 18px; }
.footer-brand img { width: 50px; height: 50px; object-fit: contain; background: #fff; border-radius: 4px; }
.subfooter {
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-top: 34px;
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: rgba(255,255,255,0.62);
  font-size: 0.9rem;
}
.subfooter a { transition: color 220ms ease, transform 220ms ease; display: inline-block; }
.content-list { padding-left: 18px; color: var(--slate); }
.content-list li { margin-bottom: 8px; }
.detail-table {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  margin: 28px 0;
}
.detail-table div { padding: 18px; border-right: 1px solid var(--line); }
.detail-table div:last-child { border-right: 0; }
.detail-table span { display: block; color: var(--slate); font-size: 0.85rem; }
.contact-layout {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 34px;
  align-items: start;
}
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
textarea.form-control { min-height: 138px; resize: vertical; }
.notice { display: none; margin-top: 14px; padding: 12px 14px; background: #eef7ee; color: #24532b; border: 1px solid #b9d8bd; border-radius: 4px; }
.notice.is-visible { display: block; animation: noticeIn 360ms ease both; }
.sitemap-links { columns: 2; }
.sitemap-links a { display: block; margin: 0 0 10px; color: var(--slate); }

[data-animate] { opacity: 0; transform: translateY(28px); transition: opacity 720ms cubic-bezier(0.22, 1, 0.36, 1), transform 720ms cubic-bezier(0.22, 1, 0.36, 1); transition-delay: var(--reveal-delay, 0ms); }
[data-animate].is-visible { opacity: 1; transform: translateY(0); }

.project-card.is-hiding {
  opacity: 0;
  transform: translateY(10px) scale(0.98);
}

body.is-leaving {
  opacity: 0;
  transition: opacity 220ms ease;
}

@keyframes pageFade {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes headerDrop {
  from { transform: translateY(-100%); }
  to { transform: translateY(0); }
}

@keyframes heroRise {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes heroDrift {
  from { transform: scale(1.045) translate3d(0, 0, 0); }
  to { transform: scale(1.09) translate3d(-1.2%, -1.2%, 0); }
}

@keyframes noticeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 6px rgba(180,135,77,0.16); transform: scale(1); }
  50% { box-shadow: 0 0 0 13px rgba(180,135,77,0.05); transform: scale(1.08); }
}

@media (max-width: 980px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 76px;
    background: #fff;
    color: var(--ink);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    border-radius: 6px;
    padding: 18px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(0.98);
    transform-origin: top right;
    transition: opacity 220ms ease, transform 220ms ease, visibility 220ms ease;
  }
  .site-nav.open { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
  .site-nav .btn { color: #fff; align-self: flex-start; width: auto; }
  .section-head, .split, .contact-layout, .bd-panel { grid-template-columns: 1fr; }
  .grid.three, .grid.four, .project-grid, .stat-grid, .timeline, .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .client-strip { grid-template-columns: repeat(3, 1fr); }
  .cta-band .container { align-items: flex-start; flex-direction: column; }
  .detail-table { grid-template-columns: repeat(2, 1fr); }
  .detail-table div { border-bottom: 1px solid var(--line); }
}

@media (min-width: 1280px) {
  .grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .project-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1.35fr 0.75fr 1fr 1fr; }
}

@media (min-width: 1600px) {
  .hero { min-height: 92vh; }
  .project-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .grid.four { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .client-strip { grid-template-columns: repeat(6, 1fr); }
  .page-section { padding: 106px 0; }
}

@media (min-width: 2100px) {
  :root { --max: min(2040px, 94vw); }
  .project-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .grid.four { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .client-strip { grid-template-columns: repeat(8, 1fr); }
}

@media (max-width: 640px) {
  .nav-wrap { width: min(100% - 24px, var(--max)); }
  .brand span { max-width: 142px; font-size: 0.9rem; }
  .hero { min-height: 76vh; }
  .hero-inner { padding: 74px 0 54px; }
  .page-section { padding: 62px 0; }
  .grid.two, .grid.three, .grid.four, .project-grid, .stat-grid, .timeline, .footer-grid, .client-strip, .form-grid, .detail-table { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--line); }
  .image-stack { grid-template-columns: 1fr; }
  .image-stack img, .image-stack img:last-child { height: 300px; margin: 0; }
  .bd-map-card { min-height: 340px; }
  .bd-map-card { grid-template-columns: 1fr; padding: 18px; }
  .bd-map-field { min-height: 280px; }
  .bd-map-legend { border-left: 0; border-top: 1px solid rgba(20,37,54,0.12); padding-left: 0; padding-top: 18px; }
  .bd-pin i { font-size: 0.64rem; }
  .subfooter { flex-direction: column; }
  .sitemap-links { columns: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
  body, .site-header, .hero-inner > *, [data-animate] {
    opacity: 1 !important;
    transform: none !important;
  }
  .hero::before { animation: none !important; }
}