*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue: #0B5270;
  --gold: #D4A017;
  --bone: #F7F5F0;
  --green: #2D6A4F;
  --charcoal: #1E222E;
  --slate: #6B7280;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--charcoal);
  background: #fff;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── NAV ── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid #eee;
}

#approach, #services, #contact {
  scroll-margin-top: 64px;
}

header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-text {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--blue);
}

.logo-text .gold { color: var(--gold); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 600;
  color: var(--slate);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--blue); }

/* ── BUTTONS ── */
.btn {
  display: inline-block;
  padding: 14px 32px;
  background: var(--blue);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.2s, transform 0.1s;
}

.btn:hover { background: #094663; transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  color: var(--blue);
  border: 2px solid var(--blue);
}

.btn-outline:hover { background: var(--blue); color: #fff; }

/* ── HERO ── */
.hero {
  background: var(--bone);
}

.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 56px 0;
}

.tagline-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--blue);
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 16px;
  color: var(--slate);
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-visual {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: 0 8px 32px rgba(0,0,0,0.18);
}

.hero-slides {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 0.9s ease;
}

.hero-slide.active { opacity: 1; }

.slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.65) 0%, transparent 55%);
}

.slide-caption {
  position: absolute;
  bottom: 48px;
  left: 24px;
  right: 24px;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  z-index: 1;
}

.slide-dots {
  display: none;
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255,255,255,0.45);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.2s, transform 0.2s;
}

.dot.active {
  background: #fff;
  transform: scale(1.35);
}

/* ── ABOUT ── */
.about {
  padding: 64px 0;
}

.about h2, .approach h2, .contact h2, .services h2 {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  color: var(--blue);
  margin-bottom: 20px;
}

.section-lead {
  font-size: 18px;
  color: var(--charcoal);
  max-width: 680px;
  margin-bottom: 40px;
  line-height: 1.7;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.about-grid p {
  color: var(--slate);
  margin-bottom: 16px;
  line-height: 1.75;
}

/* ── APPROACH ── */
.approach {
  padding: 40px 0;
  background: #fff;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.approach .cards { margin-top: 24px; }

.card {
  background: #fff;
  border-radius: 10px;
  padding: 32px 28px;
  border: 1px solid #e8e5e0;
  display: grid;
  grid-template-columns: 44px 1fr;
  grid-template-rows: auto auto;
  column-gap: 16px;
}

.card-icon {
  width: 44px;
  height: 44px;
  background: var(--bone);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  grid-column: 1;
  grid-row: 1;
  align-self: center;
}

.card h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--blue);
  margin-bottom: 10px;
  grid-column: 2;
  grid-row: 1;
  align-self: center;
}

.card p {
  font-size: 15px;
  color: var(--slate);
  line-height: 1.7;
  grid-column: 2;
  grid-row: 2;
}

/* ── SERVICES ── */
.services {
  padding: 40px 0;
  background: var(--bone);
}

.services h2 {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  color: var(--blue);
  margin-bottom: 32px;
}

.services-group {
  margin-top: 8px;
}

.services-group + .services-group {
  margin-top: 64px;
}

.services-group-header {
  margin-bottom: 32px;
}

.sector-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
  background: rgba(11, 82, 112, 0.08);
  padding: 5px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}

.sector-tag--green {
  color: var(--green);
  background: rgba(45, 106, 79, 0.08);
}

.services-group-header p {
  font-size: 16px;
  color: var(--slate);
  max-width: 620px;
  line-height: 1.7;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

/* ── CONTACT ── */
.contact {
  padding: 72px 0;
  text-align: center;
}

.contact p {
  font-size: 18px;
  color: var(--slate);
  max-width: 480px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

/* ── FOOTER ── */
footer {
  background: var(--charcoal);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

footer .logo-text {
  color: var(--bone);
}

.footer-copy {
  font-size: 13px;
  color: var(--slate);
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero-split { grid-template-columns: 1fr; gap: 32px; padding: 48px 24px; }
  .hero-visual { aspect-ratio: 16 / 9; }
  .about-grid { grid-template-columns: 1fr; gap: 0; }
  .cards { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
  .about, .approach, .services, .contact { padding: 48px 0; }
}