:root {
  --navy: #061827;
  --deep: #082236;
  --midnight: #0b2a3d;
  --sea: #116f8c;
  --sea-light: #5bb8d6;
  --gold: #c8a45d;
  --gold-dark: #a98849;
  --paper: #f4f8fb;
  --white: #ffffff;
  --ink: #102434;
  --muted: #617485;
  --line: #dbe7ee;
  --shadow: 0 18px 45px rgba(6, 24, 39, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  letter-spacing: 0;
}

body.nav-open {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

p {
  margin: 0 0 1rem;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.12;
  color: inherit;
  letter-spacing: 0;
}

h1 {
  font-size: 3.35rem;
}

h2 {
  font-size: 2.3rem;
}

h3 {
  font-size: 1.12rem;
}

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -120px;
  z-index: 200;
  padding: 10px 14px;
  color: var(--white);
  background: var(--sea);
  border-radius: 4px;
}

.skip-link:focus {
  top: 16px;
}

.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: 100;
  background: rgba(6, 24, 39, 0.97);
  border-bottom: 1px solid rgba(200, 164, 93, 0.24);
  backdrop-filter: blur(10px);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
  font-weight: 700;
  flex: 0 0 auto;
}

.brand img {
  width: 58px;
  height: 58px;
  object-fit: contain;
}

.brand span {
  font-size: 1rem;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.95rem;
  flex: 1;
}

.site-nav a {
  padding: 10px 12px;
  border-radius: 6px;
  transition: color 180ms ease, background 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus,
.site-nav a[aria-current="page"] {
  color: var(--white);
  background: rgba(91, 184, 214, 0.14);
}

.mobile-nav-brand {
  display: none;
}

.header-action,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.header-action {
  color: var(--navy);
  background: var(--gold);
  font-size: 0.92rem;
  flex: 0 0 auto;
}

.header-action:hover,
.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: var(--navy);
  background: var(--gold);
  border-color: var(--gold);
}

.btn-primary:hover,
.btn-primary:focus {
  background: #dec075;
  border-color: #dec075;
}

.btn-secondary {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.45);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: rgba(255, 255, 255, 0.16);
  border-color: var(--white);
}

.full-width {
  width: 100%;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

.hero {
  min-height: 68vh;
  display: flex;
  align-items: center;
  color: var(--white);
  padding: 96px 0 78px;
  background-size: cover;
  background-position: center;
}

.home-hero {
  background-image: linear-gradient(90deg, #061827 0%, #061827 52%, rgba(6, 24, 39, 0.36) 100%), url("../images/hero-vessel.png?v=hd");
  background-position: center right;
}

.hero-content {
  max-width: 790px;
}

.hero h1 {
  max-width: 760px;
}

.hero-text,
.page-hero p {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.12rem;
  margin-top: 20px;
}

.hero-actions,
.cta-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.hero-badges span,
.pill-list span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 12px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.92rem;
}

.page-hero {
  color: var(--white);
  padding: 88px 0 96px;
  background-size: cover;
  background-position: center;
}

.about-hero {
  background-image: linear-gradient(90deg, rgba(6, 24, 39, 0.98), rgba(6, 24, 39, 0.76)), url("../images/port-terminal.png?v=hd");
}

.services-hero {
  background-image: linear-gradient(90deg, rgba(6, 24, 39, 0.98), rgba(6, 24, 39, 0.76)), url("../images/offshore-support.png?v=hd");
}

.fleet-hero {
  background-image: linear-gradient(90deg, rgba(6, 24, 39, 0.98), rgba(6, 24, 39, 0.76)), url("../images/fleet-vessels.png?v=hd");
}

.logistics-hero {
  background-image: linear-gradient(90deg, rgba(6, 24, 39, 0.98), rgba(6, 24, 39, 0.74)), url("../images/marine-logistics.png?v=hd");
}

.contact-hero {
  background-image: linear-gradient(90deg, rgba(6, 24, 39, 0.98), rgba(6, 24, 39, 0.76)), url("../images/tanker-operations.png?v=hd");
}

.page-hero h1 {
  max-width: 840px;
}

.section {
  padding: 84px 0;
  background: var(--white);
}

.section-alt {
  background: var(--paper);
}

.section-dark {
  color: var(--white);
  background: var(--deep);
}

.section-dark p,
.section-header.light p {
  color: rgba(255, 255, 255, 0.8);
}

.split,
.two-column,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}

.reverse .visual-panel {
  order: -1;
}

.section-header {
  max-width: 780px;
  margin-bottom: 34px;
}

.section-header h2 {
  margin-top: 8px;
}

.section-header p:not(.eyebrow),
.split p,
.two-column p {
  color: var(--muted);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}

.visual-panel {
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: var(--deep);
}

.visual-panel img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.visual-panel.dark {
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.visual-panel.small {
  margin-top: 28px;
  box-shadow: none;
}

.visual-panel.small img {
  aspect-ratio: 16 / 9;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  color: var(--sea);
  font-weight: 800;
}

.text-link::after {
  content: "";
  width: 32px;
  height: 2px;
  background: var(--gold);
}

.card-grid {
  display: grid;
  gap: 20px;
}

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

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

.service-card,
.feature-card,
.leader-card,
.capability-card,
.service-detail,
.process-grid article,
.contact-panel,
.contact-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 28px rgba(6, 24, 39, 0.06);
}

.service-card,
.feature-card,
.leader-card,
.capability-card {
  min-height: 188px;
  padding: 24px;
}

.service-card h3,
.feature-card h3,
.capability-card h3,
.service-detail h3,
.leader-card h3,
.process-grid h3 {
  margin-bottom: 10px;
  color: var(--deep);
}

.service-card p,
.feature-card p,
.capability-card p,
.service-detail p,
.leader-card p,
.process-grid p {
  color: var(--muted);
  margin: 0;
}

.card-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  border-radius: 6px;
  color: var(--navy);
  background: rgba(200, 164, 93, 0.22);
  font-weight: 800;
}

.feature-card,
.capability-card {
  border-top: 4px solid var(--sea);
}

.leader-card {
  min-height: 132px;
  border-top: 4px solid var(--gold);
}

.section-action {
  margin-top: 34px;
}

.check-list {
  padding: 0;
  margin: 22px 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  color: var(--muted);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 5px rgba(200, 164, 93, 0.18);
}

.check-list.light li {
  color: rgba(255, 255, 255, 0.82);
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.service-list {
  display: grid;
  gap: 16px;
}

.service-detail {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  padding: 24px;
}

.service-detail .card-mark {
  margin: 0;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.process-grid article {
  min-height: 220px;
  padding: 24px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow: none;
}

.process-grid span {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--gold);
  font-weight: 800;
}

.process-grid h3 {
  color: var(--white);
}

.process-grid p {
  color: rgba(255, 255, 255, 0.78);
}

.cta-band {
  color: var(--white);
  background: var(--navy);
  padding: 54px 0;
  border-top: 1px solid rgba(200, 164, 93, 0.24);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.cta-inner h2 {
  max-width: 720px;
  font-size: 2rem;
}

.contact-layout {
  align-items: start;
}

.contact-panel,
.contact-form {
  padding: 28px;
}

.contact-panel h2,
.form-header h2 {
  margin-bottom: 18px;
}

.contact-list {
  padding: 0;
  margin: 0 0 24px;
  list-style: none;
}

.contact-list li {
  display: grid;
  gap: 4px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.contact-list span {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.contact-list a {
  color: var(--sea);
  font-weight: 800;
  overflow-wrap: anywhere;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-grid label {
  display: grid;
  gap: 8px;
  color: var(--deep);
  font-weight: 800;
}

.form-grid label.full {
  grid-column: 1 / -1;
}

input,
select,
textarea {
  width: 100%;
  min-height: 48px;
  border: 1px solid #cbd9e2;
  border-radius: 6px;
  padding: 12px 13px;
  color: var(--ink);
  background: var(--white);
  font: inherit;
  outline: none;
}

textarea {
  resize: vertical;
  min-height: 150px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--sea);
  box-shadow: 0 0 0 4px rgba(17, 111, 140, 0.12);
}

.contact-form .btn {
  margin-top: 20px;
}

.site-footer {
  color: rgba(255, 255, 255, 0.82);
  background: #03101d;
  padding: 58px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 42px;
}

.footer-brand img {
  width: 96px;
  height: 96px;
  object-fit: contain;
  margin-bottom: 18px;
}

.footer-brand p {
  max-width: 460px;
}

.site-footer h2 {
  margin-bottom: 16px;
  color: var(--white);
  font-size: 1rem;
}

.footer-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.footer-list li {
  margin-bottom: 10px;
}

.footer-list a:hover,
.footer-list a:focus {
  color: var(--gold);
}

.footer-bottom {
  margin-top: 42px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.9rem;
}

@media (max-width: 1040px) {
  .header-inner {
    gap: 14px;
  }

  .brand span {
    display: none;
  }

  .site-nav {
    font-size: 0.9rem;
  }

  .site-nav a {
    padding: 9px 8px;
  }

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

@media (max-width: 820px) {
  h1 {
    font-size: 2.35rem;
  }

  h2 {
    font-size: 1.8rem;
  }

  .header-inner {
    min-height: 70px;
  }

  .brand img {
    width: 52px;
    height: 52px;
  }

  .nav-toggle {
    display: block;
  }

  .header-action {
    display: none;
  }

  .site-nav {
    position: fixed;
    inset: 70px 0 0 0;
    display: none;
    flex: none;
    width: 100%;
    height: calc(100vh - 70px);
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    padding: 22px 16px 28px;
    background: var(--navy);
    border-bottom: 1px solid rgba(200, 164, 93, 0.24);
  }

  .site-nav.is-open {
    display: grid;
    gap: 8px;
    align-content: start;
  }

  .site-nav a {
    padding: 13px 14px;
    border: 1px solid rgba(255, 255, 255, 0.08);
  }

  .mobile-nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 14px;
    color: var(--white);
    font-weight: 800;
  }

  .mobile-nav-brand img {
    width: 46px;
    height: 46px;
    object-fit: contain;
  }

  .hero {
    min-height: 64vh;
    padding: 72px 0 54px;
  }

  .page-hero {
    padding: 70px 0 76px;
  }

  .hero-text,
  .page-hero p {
    font-size: 1rem;
  }

  .section {
    padding: 64px 0;
  }

  .split,
  .two-column,
  .contact-layout,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .reverse .visual-panel {
    order: 0;
  }

  .card-grid.three,
  .card-grid.four,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .cta-inner {
    display: grid;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 24px, 1120px);
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.55rem;
  }

  .brand img {
    width: 48px;
    height: 48px;
  }

  .hero-actions,
  .cta-actions {
    display: grid;
  }

  .btn,
  .header-action {
    width: 100%;
  }

  .service-detail {
    grid-template-columns: 1fr;
  }

  .service-card,
  .feature-card,
  .leader-card,
  .capability-card,
  .service-detail,
  .process-grid article,
  .contact-panel,
  .contact-form {
    padding: 20px;
  }
}