@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --blue: #1464c8;
  --blue-dark: #0f4f9e;
  --dark: #1f2937;
  --grey: #f4f5f7;
  --text: #1f2937;
  --muted: #4b5563;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---- Header ---- */
.site-header {
  background: #fff;
  border-bottom: 1px solid #eef0f3;
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand img { height: 42px; width: auto; display: block; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: .95rem;
}
.nav a:hover { color: var(--blue); }
.nav a.active { color: var(--blue); border-bottom: 2px solid var(--blue); padding-bottom: 3px; }
.search-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
  display: flex;
  align-items: center;
  padding: 4px;
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 68vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #0d1b2a;
}
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 16, 32, .55) 0%, rgba(4, 16, 32, .75) 100%);
}
.hero-content {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  color: #fff;
}
.hero-content h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  max-width: 760px;
}
.hero-content p {
  margin-top: 16px;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  max-width: 640px;
  color: #e5edf7;
}

/* ---- Cards ---- */
.cards {
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  border-radius: 8px;
  padding: 36px 32px;
  min-height: 240px;
}
.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.card-icon svg { width: 28px; height: 28px; }
.card h2 { font-size: 1.4rem; font-weight: 700; margin-bottom: 12px; }
.card p { font-size: .98rem; line-height: 1.6; }

.card-light { background: #fff; border: 1px solid #e6e9ee; }
.card-light .card-icon { background: #eaf1fb; color: var(--blue); }
.card-light h2 { color: var(--blue); }

.card-blue { background: var(--blue); color: #fff; }
.card-blue .card-icon { background: rgba(255,255,255,.15); color: #fff; }
.card-blue h2 { color: #fff; }
.card-blue p { color: #dbe6f6; }

.card-dark { background: var(--dark); color: #fff; }
.card-dark .card-icon { background: rgba(255,255,255,.12); color: #fff; }
.card-dark h2 { color: #fff; }
.card-dark p { color: #cbd5e1; }

/* ---- About ---- */
.about { background: var(--grey); }
.about-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .8rem;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 16px;
}
.about-copy h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}
.about-copy h2 em { color: var(--blue); font-style: normal; }
.about-copy p {
  color: var(--muted);
  font-size: 1.02rem;
  margin-bottom: 16px;
}
.about-media img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 12px 30px rgba(0,0,0,.12);
  display: block;
}

/* ---- Section head (shared) ---- */
.section-head { text-align: center; max-width: 760px; margin: 0 auto 40px; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; line-height: 1.2; margin-top: 8px; }

/* ---- Global trade ---- */
.global-trade { background: #0d1b2a; padding: 80px 24px; }
.global-trade .eyebrow { color: #7fb3e8; }
.global-trade .section-head h2 { color: #fff; }
.trade-media { max-width: 960px; margin: 0 auto; }
.trade-media video { width: 100%; border-radius: 10px; display: block; }

/* ---- Infrastructure ---- */
.infrastructure { max-width: 1200px; margin: 0 auto; padding: 80px 24px; }
.infrastructure .section-head { text-align: left; margin: 0 0 8px; }
.infra-intro { color: var(--muted); font-size: 1.02rem; max-width: 760px; margin: 0 0 40px; }
.pipe-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 40px; }
.pipe-card { border-radius: 12px; padding: 26px 22px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.pipe-card img { width: 100%; height: auto; display: block; }
.pipe-grey { background: #f0f1f3; }
.pipe-blue { background: var(--blue); }
.pipe-dark { background: #1f2937; }
.infra-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 40px; }
.stat { background: var(--grey); border-radius: 10px; padding: 28px 20px; text-align: center; }
.stat-value { display: block; font-size: 1.7rem; font-weight: 800; color: var(--blue); }
.stat-label { display: block; margin-top: 6px; font-size: .9rem; color: var(--muted); }
.route-map { max-width: 860px; margin: 0 auto 48px; }
.route-map img { width: 100%; height: auto; display: block; }
.infra-items { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 40px; }
.infra-item h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.infra-item p { font-size: .95rem; color: var(--muted); }
.infra-spm { max-width: 700px; margin: 0 auto; }
.infra-spm img { width: 100%; border-radius: 8px; display: block; box-shadow: 0 12px 30px rgba(0,0,0,.1); }

/* ---- Future ---- */
.future { background: #0d1b2a; padding: 80px 24px; }
.future-inner { max-width: 820px; margin: 0 auto; text-align: center; }
.future .eyebrow { color: #7fb3e8; }
.future h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; color: #fff; margin-bottom: 20px; line-height: 1.2; }
.future p { color: #c3d2e4; font-size: 1.02rem; margin-bottom: 16px; }

@media (max-width: 820px) {
  .infra-stats, .infra-items { grid-template-columns: repeat(2, 1fr); }
  .pipe-cards { grid-template-columns: 1fr; }
}

/* ---- Hover effects ---- */
.card, .pipe-card, .stat, .infra-item, .about-media img, .route-map img, .infra-spm img {
  transition: transform .25s ease, box-shadow .25s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: 0 16px 32px rgba(0,0,0,.12); }
.pipe-card:hover { transform: translateY(-5px); box-shadow: 0 14px 28px rgba(0,0,0,.16); }
.stat:hover { transform: translateY(-4px); box-shadow: 0 10px 22px rgba(0,0,0,.09); }
.infra-item:hover { transform: translateY(-3px); }
.about-media img:hover, .route-map img:hover, .infra-spm img:hover { transform: scale(1.02); }

/* ---- Footer ---- */
.site-footer { background: #fff; border-top: 1px solid #eef0f3; }
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.footer-logo { height: 36px; width: auto; }
.footer-inner p { color: #9aa3b2; font-size: .85rem; }

/* ---- Responsive ---- */
@media (max-width: 820px) {
  .cards { grid-template-columns: 1fr; }
  .about-inner { grid-template-columns: 1fr; }
  .nav { gap: 16px; }
  .nav a { font-size: .85rem; }
}