:root {
  --navy:#1F3A5F;
  --light:#E8F1FA;
  --steel:#4F6F8F;
  --white:#ffffff;
  --text:#263746;
  --muted:#5b6d7f;
  --border:#d8e3ee;
  --panel:#f7fafc;
  --shadow:0 16px 40px rgba(31,58,95,.08);
  --radius:18px;
}

* {
  box-sizing:border-box;
}

html {
  scroll-behavior:smooth;
}

body {
  margin:0;
  font-family:Inter, Open Sans, Arial, sans-serif;
  color:var(--text);
  background:#fff;
  line-height:1.65;
}

a {
  color:var(--navy);
  text-decoration:none;
}

img {
  max-width:100%;
  display:block;
}

.container {
  width:min(1180px, calc(100% - 40px));
  margin:0 auto;
}

.section {
  padding:80px 0;
}

.section-sm {
  padding:56px 0;
}

.eyebrow {
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--steel);
  font-size:.8rem;
  font-weight:700;
  margin-bottom:14px;
}

h1, h2, h3, h4, h5 {
  font-family:'Playfair Display', Merriweather, Georgia, serif;
  color:var(--navy);
  line-height:1.15;
  margin:0 0 16px;
}

h1 {
  font-size:clamp(2.35rem, 4vw, 4.5rem);
}

h2 {
  font-size:clamp(1.85rem, 3vw, 3rem);
}

h3 {
  font-size:1.5rem;
}

p {
  margin:0 0 16px;
  color:var(--muted);
}

/* Header */
.site-header {
  position:sticky;
  top:0;
  z-index:40;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(31,58,95,.08);
}

.nav-wrap {
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:86px;
  gap:20px;
}

.brand {
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  flex-shrink:0;
}

.brand-logo {
  height:64px;
  width:auto;
  display:block;
}

.brand-text strong {
  display:block;
  font-size:18px;
  color:var(--navy);
}

.brand-text small {
  display:block;
  font-size:12px;
  color:#6b7280;
  margin-top:2px;
}

.brand-mark {
  display:grid;
  place-items:center;
  width:48px;
  height:48px;
  border-radius:14px;
  background:linear-gradient(135deg, var(--navy), #355d87);
  color:#fff;
  font-family:'Playfair Display', serif;
  font-size:1.5rem;
  box-shadow:var(--shadow);
}

.main-nav {
  display:flex;
  align-items:center;
  gap:22px;
}

.main-nav a {
  font-size:.96rem;
  color:var(--text);
}

.main-nav a:hover {
  color:var(--navy);
}

.nav-cta {
  padding:12px 18px;
  border:1px solid var(--navy);
  border-radius:999px;
  color:var(--navy) !important;
  font-weight:700;
}

.nav-toggle {
  display:none;
  background:none;
  border:0;
  font-size:1.6rem;
  color:var(--navy);
}

/* Hero */
.hero {
  position:relative;
  overflow:hidden;
  color:#fff;
}

.hero .container {
  position:relative;
  z-index:2;
}

.hero-home {
  position:relative;
  min-height:640px;
  display:flex;
  align-items:center;
  color:#fff;
  padding:120px 0 100px;
  background-image:
    linear-gradient(90deg, rgba(7,25,50,0.88) 0%, rgba(7,25,50,0.72) 38%, rgba(7,25,50,0.40) 68%, rgba(7,25,50,0.22) 100%),
    linear-gradient(180deg, rgba(6,20,40,0.15) 0%, rgba(6,20,40,0.45) 100%),
    url('assets/hero-energy.jpg');
  background-size:cover;
  background-position:center center;
  background-repeat:no-repeat;
}

.hero-home::before,
.hero-home::after {
  display:none !important;
  content:none !important;
}

.hero-home .container {
  max-width:720px;
  margin-left:0;
}

.hero.hero-refinery {
  background:url('assets/refinery.svg') center/cover no-repeat;
}

.hero.hero-map {
  background:url('assets/global-map.svg') center/cover no-repeat;
}

.hero.hero-logistics {
  background:url('assets/logistics.svg') center/cover no-repeat;
}

.hero.hero-plain {
  background:linear-gradient(135deg, #203b5f, #355a7c);
}

.hero .eyebrow,
.hero h1,
.hero p {
  color:#fff;
}

.hero-home .eyebrow {
  color:rgba(255,255,255,.88);
  font-size:14px;
  font-weight:700;
  letter-spacing:2px;
  text-transform:uppercase;
  margin-bottom:18px;
}

.hero-home h1 {
  color:#fff;
  font-size:clamp(2.8rem, 5vw, 5.25rem);
  line-height:1.02;
  margin:0 0 24px;
  font-family:'Playfair Display', Merriweather, Georgia, serif;
  font-weight:700;
  max-width:900px;
}

.hero-home p {
  max-width:760px;
  font-size:1.08rem;
  line-height:1.75;
  color:rgba(255,255,255,.90);
  margin-bottom:34px;
}

.hero-actions {
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  margin-top:28px;
}

/* Buttons */
.btn {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:14px 22px;
  border-radius:999px;
  font-weight:700;
  transition:.25s ease;
  box-shadow:var(--shadow);
}

.btn-primary {
  background:#fff;
  color:var(--navy);
}

.btn-primary:hover {
  transform:translateY(-2px);
}

.btn-secondary {
  background:transparent;
  color:#fff;
  border:1px solid rgba(255,255,255,.45);
}

.btn-outline {
  background:transparent;
  border:1px solid var(--navy);
  color:var(--navy);
}

/* Grids */
.grid-2,
.grid-3,
.grid-4 {
  display:grid;
  gap:28px;
}

.grid-2 {
  grid-template-columns:repeat(2, minmax(0,1fr));
}

.grid-3 {
  grid-template-columns:repeat(3, minmax(0,1fr));
}

.grid-4 {
  grid-template-columns:repeat(4, minmax(0,1fr));
}

/* Cards */
.card,
.stat-card,
.logo-card,
.info-card {
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow);
}

.card h3,
.stat-card h3,
.info-card h3 {
  margin-bottom:12px;
}

.card ul,
.info-card ul {
  padding-left:18px;
  color:var(--muted);
  margin:0;
}

.card li,
.info-card li {
  margin:6px 0;
}

.panel {
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:24px;
  padding:34px;
}

.split-hero {
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:32px;
  align-items:center;
}

.media-frame {
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:26px;
  overflow:hidden;
  box-shadow:var(--shadow);
}

.media-frame img {
  width:100%;
  height:100%;
  object-fit:cover;
}

.kpi-wrap {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
  margin-top:24px;
}

.kpi {
  background:#fff;
  border:1px solid rgba(255,255,255,.18);
  padding:20px;
  border-radius:20px;
  color:#fff;
  background:rgba(255,255,255,.08);
}

.kpi strong {
  display:block;
  font-size:1.8rem;
  font-family:'Playfair Display', serif;
}

.map-card {
  background:#f8fbfe;
  border:1px solid var(--border);
  border-radius:26px;
  padding:18px;
  box-shadow:var(--shadow);
}

.map-card img {
  border-radius:18px;
}

.timeline {
  display:grid;
  gap:18px;
}

.timeline-item {
  display:grid;
  grid-template-columns:120px 1fr;
  gap:20px;
  align-items:start;
  padding:24px;
  border:1px solid var(--border);
  border-radius:18px;
  background:#fff;
  box-shadow:var(--shadow);
}

.timeline-step {
  font-family:'Playfair Display', serif;
  color:var(--navy);
  font-size:1.2rem;
}

.badge-row,
.logo-grid {
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}

.badge,
.logo-card {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:82px;
  padding:22px 26px;
  font-weight:700;
  color:var(--navy);
  background:#fff;
}

.logo-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}

.logo-card {
  border:1px solid var(--border);
  border-radius:18px;
  box-shadow:var(--shadow);
}

.table-wrap {
  overflow-x:auto;
  border:1px solid var(--border);
  border-radius:22px;
  background:#fff;
  box-shadow:var(--shadow);
}

table {
  width:100%;
  border-collapse:collapse;
  min-width:680px;
}

th,
td {
  padding:18px 20px;
  text-align:left;
  border-bottom:1px solid var(--border);
}

th {
  background:#f2f7fb;
  color:var(--navy);
  font-family:'Playfair Display', serif;
}

tr:last-child td {
  border-bottom:0;
}

.check-list {
  display:grid;
  gap:14px;
}

.check-item {
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:16px 18px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:16px;
}

.check-item span:first-child {
  display:grid;
  place-items:center;
  width:26px;
  height:26px;
  border-radius:50%;
  background:var(--navy);
  color:#fff;
  font-size:.85rem;
  flex:0 0 26px;
}

.contact-grid {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:26px;
}

.contact-card {
  background:#fff;
  border:1px solid var(--border);
  border-radius:22px;
  padding:30px;
  box-shadow:var(--shadow);
}

.contact-card form {
  display:grid;
  gap:14px;
}

input,
select,
textarea {
  width:100%;
  padding:14px 16px;
  border-radius:14px;
  border:1px solid var(--border);
  font:inherit;
  color:var(--text);
  background:#fff;
}

textarea {
  min-height:140px;
  resize:vertical;
}

/* Footer */
.site-footer {
  margin-top:40px;
  background:#132844;
  color:#d8e4ef;
  padding:56px 0 22px;
}

.site-footer h4,
.site-footer h5 {
  color:#fff;
}

.site-footer a {
  display:block;
  color:#d8e4ef;
  margin:8px 0;
}

.footer-grid {
  display:grid;
  grid-template-columns:1.2fr .8fr .9fr 1fr;
  gap:28px;
}

.footer-bottom {
  margin-top:28px;
  padding-top:18px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:.92rem;
  color:#b5c4d4;
}

.footer-locations {
  font-weight:700;
  color:#fff;
}

.page-intro {
  max-width:820px;
}

.note {
  font-size:.92rem;
  color:#667b8f;
}

.muted-bg {
  background:#f7fafc;
}

.center {
  text-align:center;
}

.mt-24 { margin-top:24px; }
.mt-32 { margin-top:32px; }
.mt-40 { margin-top:40px; }
.mt-48 { margin-top:48px; }

/* Responsive */
@media (max-width: 980px) {
  .grid-2,
  .grid-3,
  .grid-4,
  .split-hero,
  .contact-grid,
  .footer-grid {
    grid-template-columns:1fr;
  }

  .kpi-wrap {
    grid-template-columns:1fr;
  }

  .main-nav {
    position:absolute;
    left:20px;
    right:20px;
    top:86px;
    background:#fff;
    border:1px solid var(--border);
    border-radius:18px;
    padding:18px;
    box-shadow:var(--shadow);
    display:none;
    flex-direction:column;
    align-items:flex-start;
  }

  .main-nav.open {
    display:flex;
  }

  .nav-toggle {
    display:block;
  }

  .timeline-item {
    grid-template-columns:1fr;
  }

  .brand-logo {
    height:52px;
  }

  .hero-home {
    min-height:auto;
    padding:90px 0 70px;
    background-position:center center;
  }

  .hero-home h1 {
    font-size:clamp(2.3rem, 8vw, 3.6rem);
    line-height:1.08;
  }

  .hero-home p {
    font-size:1rem;
    line-height:1.7;
  }
}

@media (max-width: 640px) {
  .container {
    width:min(100% - 24px, 1180px);
  }

  .nav-wrap {
    min-height:78px;
  }

  .brand-logo {
    height:44px;
  }

  .hero-home {
    padding:72px 0 56px;
    background-image:
      linear-gradient(180deg, rgba(7,25,50,0.84) 0%, rgba(7,25,50,0.72) 100%),
      url('assets/hero-energy.jpg');
  }

  .hero-actions {
    flex-direction:column;
    align-items:flex-start;
  }

  .btn {
    width:100%;
  }

  .panel,
  .card,
  .contact-card,
  .logo-card,
  .info-card {
    padding:22px;
  }
}