/* ==========================================================================
   VH Exploration & Fabrication — Brand Stylesheet
   ========================================================================== */

:root {
  /* Brand colors — refined blue + industrial safety accent */
  --color-primary: #0B3D8C;
  --color-primary-dark: #082C66;
  --color-primary-light: #1E5FD1;
  --color-accent: #F2A900;
  --color-accent-dark: #C98600;
  --color-steel: #3C4450;
  --color-charcoal: #14171C;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F4F6F8;
  --color-bg-dark: #0F1420;
  --color-text: #1F2430;
  --color-text-muted: #5B6472;
  --color-text-on-dark: #E7EAF0;
  --color-border: #E1E5EA;

  --font-head: 'Exo', sans-serif;
  --font-body: 'Open Sans', sans-serif;

  --radius: 8px;
  --shadow-sm: 0 2px 8px rgba(15, 20, 32, 0.08);
  --shadow-md: 0 8px 24px rgba(15, 20, 32, 0.12);
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--color-charcoal);
  line-height: 1.15;
  margin: 0 0 0.5em;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.2rem, 4vw, 3.4rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 2.6vw, 2.3rem); font-weight: 700; letter-spacing: -0.015em; }
h3 { font-size: 1.2rem; font-weight: 700; }

p { margin: 0 0 1em; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-light); }

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: 0.75em;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 3px;
  background: var(--color-accent);
  display: inline-block;
  border-radius: 2px;
}

.lede {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 640px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-charcoal);
}
.btn-primary:hover { background: var(--color-accent-dark); color: var(--color-charcoal); }
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.4);
  color: #fff;
}
.btn-outline:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,0.08); }
.btn-outline-dark {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn-outline-dark:hover { background: var(--color-primary); color: #fff; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(6px);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-logo { height: 54px; width: auto; display: block; }
footer .brand-logo-footer { height: 48px; }

.nav-toggle { display: none; }

nav.main-nav ul {
  list-style: none;
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
}
nav.main-nav a {
  display: block;
  padding: 10px 16px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--color-steel);
  border-radius: 6px;
}
nav.main-nav a:hover, nav.main-nav a.active {
  color: var(--color-primary);
  background: var(--color-bg-alt);
}
.header-actions { display: flex; align-items: center; gap: 14px; }
.header-actions .btn { padding: 10px 20px; font-size: 0.88rem; }

/* Hero */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-primary-dark) 70%, var(--color-primary) 100%);
  color: #fff;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(115deg, rgba(255,255,255,0.035) 0px, rgba(255,255,255,0.035) 2px, transparent 2px, transparent 60px);
  pointer-events: none;
}
.hero .container {
  position: relative;
  padding: 100px 24px 90px;
}
.hero-inner { max-width: 720px; }
.hero .eyebrow { color: var(--color-accent); }
.hero .eyebrow::before { background: var(--color-accent); }
.hero h1 { color: #fff; }
.hero p.lede { color: var(--color-text-on-dark); }
.hero-cta { display: flex; gap: 16px; margin-top: 32px; flex-wrap: wrap; }

.credibility-bar {
  background: var(--color-charcoal);
  border-top: 1px solid rgba(255,255,255,0.08);
}
.credibility-bar ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 40px;
  margin: 0;
  padding: 20px 24px;
  max-width: var(--container);
  margin: 0 auto;
}
.credibility-bar li {
  color: var(--color-text-on-dark);
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}
.credibility-bar li::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 2px;
  transform: rotate(45deg);
}

/* Page header (non-home) */
.page-hero {
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-primary-dark) 80%);
  color: #fff;
  padding: 64px 0 56px;
}
.page-hero h1 { color: #fff; margin-bottom: 0.3em; }
.page-hero p { color: var(--color-text-on-dark); max-width: 620px; font-size: 1.05rem; }
.breadcrumb { font-size: 0.8rem; color: var(--color-accent); font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 14px; }

/* Sections */
section { padding: 84px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-dark { background: var(--color-charcoal); color: var(--color-text-on-dark); }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-head { max-width: 700px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* Grids & Cards */
.grid { display: grid; gap: 28px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.card-accent-top { border-top: 4px solid var(--color-primary); }
.card .icon-tag {
  display: inline-flex;
  width: 46px; height: 46px;
  align-items: center; justify-content: center;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  border-radius: 8px;
  font-family: var(--font-head);
  font-weight: 800;
  margin-bottom: 18px;
}

.stat-card { text-align: center; padding: 28px 20px; }
.stat-card .num { font-family: var(--font-head); font-weight: 800; font-size: 2rem; color: var(--color-primary); display:block; }
.stat-card .label { font-size: 0.85rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.04em; font-weight: 600; }

.pill {
  display: inline-block;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  color: var(--color-steel);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 100px;
  margin: 0 8px 8px 0;
}

.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 12px;
  color: var(--color-text);
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0; top: 4px;
  width: 18px; height: 18px;
  border-radius: 4px;
  background: var(--color-accent);
}
.checklist li::after {
  content: "";
  position: absolute;
  left: 5px; top: 7px;
  width: 8px; height: 4px;
  border-left: 2px solid var(--color-charcoal);
  border-bottom: 2px solid var(--color-charcoal);
  transform: rotate(-45deg);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.quote-block {
  border-left: 4px solid var(--color-accent);
  padding-left: 24px;
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-charcoal);
  margin: 0;
}

table.compare {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}
table.compare th, table.compare td {
  border: 1px solid var(--color-border);
  padding: 14px 18px;
  text-align: left;
  font-size: 0.94rem;
}
table.compare th {
  background: var(--color-bg-alt);
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--color-charcoal);
}

/* Timeline / pathway */
.pathway {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
}
.pathway-step {
  flex: 1;
  min-width: 200px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-accent);
  padding: 24px;
  position: relative;
}

/* Partner logos */
.partner-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.partner-slot {
  flex: 1;
  min-width: 150px;
  background: #fff;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  font-weight: 600;
}

/* CTA band */
.cta-band {
  background: var(--color-primary);
  color: #fff;
  text-align: center;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: var(--color-text-on-dark); max-width: 560px; margin-left: auto; margin-right: auto; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
}
.contact-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 32px;
}
.contact-card h3 { margin-bottom: 20px; }
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { display: flex; gap: 14px; margin-bottom: 20px; }
.contact-list .label { font-family: var(--font-head); font-weight: 700; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--color-text-muted); display: block; }

form.enquiry { display: grid; gap: 16px; }
form.enquiry label { font-family: var(--font-head); font-weight: 600; font-size: 0.85rem; color: var(--color-steel); display: block; margin-bottom: 6px; }
form.enquiry input, form.enquiry select, form.enquiry textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: #fff;
}
form.enquiry textarea { resize: vertical; min-height: 110px; }

/* Footer */
footer.site-footer {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
footer .brand { color: #fff; }
footer p.foot-desc { color: rgba(231,234,240,0.65); font-size: 0.92rem; max-width: 320px; }
footer h4 { color: #fff; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 18px; }
footer ul { list-style: none; padding: 0; margin: 0; }
footer li { margin-bottom: 12px; }
footer a { color: rgba(231,234,240,0.75); font-size: 0.92rem; }
footer a:hover { color: var(--color-accent); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 24px;
  font-size: 0.8rem;
  color: rgba(231,234,240,0.5);
  flex-wrap: wrap;
  gap: 10px;
}

/* Responsive */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .two-col, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  nav.main-nav { display: none; }
  .nav-toggle { display: block; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .credibility-bar ul { gap: 8px 20px; padding: 16px 24px;}
}

/* ==========================================================================
   Aramco-inspired additions: photographic hero, stat band, image cards,
   editorial grid, document list, legacy banner, mega footer
   ========================================================================== */

/* Utility top bar */
.utility-bar {
  background: var(--color-charcoal);
  color: rgba(231,234,240,0.8);
}
.utility-bar .container {
  display: flex;
  justify-content: flex-end;
  gap: 24px;
  padding: 8px 24px;
  font-size: 0.78rem;
}
.utility-bar a { color: rgba(231,234,240,0.8); }
.utility-bar a:hover { color: var(--color-accent); }

/* Photographic hero */
.photo-hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: flex-end;
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}
.photo-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(6,10,20,0.92) 0%, rgba(6,10,20,0.55) 45%, rgba(8,14,28,0.35) 100%);
}
.photo-hero .container { position: relative; padding: 80px 24px 64px; }
.photo-hero .hero-inner { max-width: 680px; }
.photo-hero .eyebrow { color: var(--color-accent); }
.photo-hero h1 { color: #fff; }
.photo-hero p.lede { color: rgba(231,234,240,0.9); }

.hero-scroll-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 36px;
}
.hero-scroll-cta .circle-arrow {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,0.6);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}

/* At a glance stat band */
.stat-band {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
}
.stat-band .container { padding: 56px 24px; }
.stat-band-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-band-item { border-left: 1px solid var(--color-border); padding-left: 24px; }
.stat-band-item:first-child { border-left: none; padding-left: 0; }
.stat-band-item .num {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 2.6rem;
  color: var(--color-primary);
  display: block;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-band-item .label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Image cards (editorial grid) */
.section-link {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.section-flex-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.img-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  display: block;
  color: #fff;
  aspect-ratio: 4/5;
  background-size: cover;
  background-position: center;
}
.img-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(6,10,20,0.85) 0%, rgba(6,10,20,0.15) 55%, transparent 75%);
}
.img-card .img-card-body {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 22px;
  z-index: 1;
}
.img-card .cat {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  display: block;
  margin-bottom: 8px;
}
.img-card h3 { color: #fff; font-size: 1.05rem; margin-bottom: 0; }
.img-card .plus-icon {
  position: absolute;
  top: 16px; right: 16px;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 1rem;
  z-index: 1;
}
.img-card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* Wide editorial cards (news style) */
.editorial-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 20px; }
.editorial-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--color-border);
}
.editorial-card .thumb { height: 200px; background-size: cover; background-position: center; }
.editorial-card .body { padding: 22px; }
.editorial-card .cat { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-primary); }
.editorial-card h3 { font-size: 1.05rem; margin: 10px 0; }
.editorial-card.feature { grid-row: span 1; }
.editorial-card.feature .thumb { height: 320px; }

/* Sub-grid with small photo tiles (environmental protection style) */
.mini-card { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--color-border); background: #fff; }
.mini-card .thumb { height: 160px; background-size: cover; background-position: center; }
.mini-card .body { padding: 22px; }

/* Document / resource list */
.doc-list { border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; background: #fff; }
.doc-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--color-border);
  gap: 16px;
  flex-wrap: wrap;
}
.doc-row:last-child { border-bottom: none; }
.doc-row .doc-title { font-family: var(--font-head); font-weight: 600; font-size: 0.95rem; color: var(--color-charcoal); }
.doc-row .doc-meta { font-size: 0.82rem; color: var(--color-text-muted); }
.doc-row .doc-action {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Legacy / heritage banner */
.legacy-banner {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.legacy-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(6,10,20,0.75) 0%, rgba(11,61,140,0.55) 60%, rgba(6,10,20,0.35) 100%);
}
.legacy-banner::after {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 6px; height: 100%;
  background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-primary-light) 100%);
}
.legacy-banner .container { position: relative; z-index: 1; }
.legacy-banner .eyebrow { color: var(--color-accent); }
.legacy-banner h2 {
  color: #fff;
  font-size: clamp(2rem, 5vw, 3.8rem);
  max-width: 640px;
}

/* Mega footer additions */
.footer-grid-wide { grid-template-columns: 1.2fr 1fr 1fr 1fr 1fr; }
.footer-social { display: flex; gap: 12px; margin-top: 18px; }
.footer-social a {
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem;
  color: rgba(231,234,240,0.8);
}
.footer-social a:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* Responsive additions */
@media (max-width: 900px) {
  .stat-band-grid { grid-template-columns: repeat(2, 1fr); gap: 28px 16px; }
  .stat-band-item { border-left: none; padding-left: 0; }
  .img-card-grid { grid-template-columns: repeat(2, 1fr); }
  .editorial-grid { grid-template-columns: 1fr; }
  .footer-grid-wide { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .photo-hero { min-height: 520px; }
  .stat-band-grid { grid-template-columns: 1fr 1fr; }
  .img-card-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid-wide { grid-template-columns: 1fr; }
  .utility-bar .container { justify-content: center; }
}