/* ============================================================
   Go-Gas Ventures Limited — Shared Stylesheet
   Palette: Navy #0d2340 | Flame #e85d04 | Amber #f48c06
   Mobile-first, no external dependencies
   ============================================================ */

:root {
  --navy:       #0d2340;
  --navy-mid:   #1a3a5c;
  --flame:      #e85d04;
  --amber:      #f48c06;
  --light:      #f5f7fa;
  --white:      #ffffff;
  --text:       #2d3748;
  --text-muted: #64748b;
  --border:     #e2e8f0;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --radius:     8px;
  --shadow:     0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg:  0 8px 32px rgba(0,0,0,0.16);
  --max-w:      1200px;
  --transition: 0.22s ease;
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font); color: var(--text); line-height: 1.7; background: var(--white); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--flame); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--amber); }
ul { list-style: none; }
address { font-style: normal; }

/* === UTILITY === */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 1.25rem; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.text-center { text-align: center; }

/* === TYPOGRAPHY === */
h1, h2, h3, h4 { color: var(--navy); line-height: 1.25; font-weight: 700; }
h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.05rem, 2.5vw, 1.3rem); }
h4 { font-size: 1.05rem; }
p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

.section-label {
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--flame);
  margin-bottom: 0.5rem;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1;
}
.btn-primary { background: var(--flame); color: var(--white); border-color: var(--flame); }
.btn-primary:hover { background: #c94f03; border-color: #c94f03; color: var(--white); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-secondary { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.7); }
.btn-secondary:hover { background: var(--white); color: var(--navy); border-color: var(--white); }
.btn-outline { background: transparent; color: var(--flame); border-color: var(--flame); }
.btn-outline:hover { background: var(--flame); color: var(--white); }
.btn-navy { background: var(--navy); color: var(--white); border-color: var(--navy); }
.btn-navy:hover { background: var(--navy-mid); border-color: var(--navy-mid); color: var(--white); }
.btn-white { background: var(--white); color: var(--navy); border-color: var(--white); }
.btn-white:hover { background: var(--amber); color: var(--white); border-color: var(--amber); }

/* === SITE HEADER === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy);
  box-shadow: 0 2px 12px rgba(0,0,0,0.28);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 1rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-img-wrap {
  display: flex;
  align-items: center;
  background: var(--white);
  border-radius: 4px;
  padding: 5px 10px;
}
.logo-img-wrap img {
  height: 38px;
  width: auto;
  display: block;
  filter: drop-shadow(0 0 4px rgba(255,255,255,0.95)) drop-shadow(0 0 8px rgba(255,255,255,0.6));
}
/* Footer logo slightly smaller */
.footer-about .logo-img-wrap img { height: 32px; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 0;
}
.main-nav a {
  color: rgba(255,255,255,0.82);
  padding: 0.45rem 0.8rem;
  font-size: 0.88rem;
  font-weight: 500;
  border-radius: 6px;
  transition: all var(--transition);
  text-decoration: none;
}
.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--white);
  background: rgba(255,255,255,0.1);
}
.nav-cta { margin-left: 0.6rem; padding: 0.45rem 1rem !important; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

/* === BREADCRUMB === */
.breadcrumb {
  background: var(--light);
  padding: 0.6rem 0;
  font-size: 0.83rem;
  border-bottom: 1px solid var(--border);
}
.breadcrumb ol { display: flex; gap: 0; align-items: center; flex-wrap: wrap; }
.breadcrumb li { display: flex; align-items: center; }
.breadcrumb li + li::before { content: '›'; color: var(--text-muted); margin: 0 0.4rem; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--flame); }
.breadcrumb [aria-current="page"] { color: var(--text); font-weight: 600; }

/* === HERO === */
.hero {
  position: relative;
  background: var(--navy);
  color: var(--white);
  padding: 5rem 0 4.5rem;
  overflow: hidden;
}
.hero-bg-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(155deg, rgba(13,35,64,0.98) 0%, rgba(26,58,92,0.9) 55%, rgba(232,93,4,0.22) 100%);
  z-index: 1;
}
.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: 0.28;
}
/* Decorative flame shape */
.hero::after {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232,93,4,0.18) 0%, transparent 70%);
  z-index: 1;
  pointer-events: none;
}
.hero .container { position: relative; z-index: 2; }
.hero-content { max-width: 680px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(244,140,6,0.15);
  border: 1px solid rgba(244,140,6,0.38);
  color: var(--amber);
  padding: 0.3rem 0.9rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 1.25rem;
}
.hero h1 { color: var(--white); margin-bottom: 1rem; }
.hero h1 span { color: var(--amber); }
.hero-sub {
  font-size: 1.08rem;
  color: rgba(255,255,255,0.83);
  margin-bottom: 2rem;
  line-height: 1.65;
}
.hero-actions {
  display: flex;
  gap: 0.875rem;
  flex-wrap: wrap;
  align-items: center;
}
.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.13);
  flex-wrap: wrap;
}
.stat-number {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--amber);
  line-height: 1;
  display: block;
}
.stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  margin-top: 0.2rem;
}

/* Page hero (smaller, for inner pages) */
.page-hero {
  background: var(--navy);
  padding: 3rem 0;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  right: -60px;
  top: -60px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232,93,4,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { color: var(--white); margin-bottom: 0.6rem; }
.page-hero p { color: rgba(255,255,255,0.78); font-size: 1.05rem; max-width: 580px; margin: 0; }

/* === SECTIONS === */
section { padding: 4rem 0; }
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 2.75rem;
}
.section-header h2 { margin-bottom: 0.75rem; }
.section-header p { color: var(--text-muted); font-size: 1.02rem; }
.bg-light { background: var(--light); }
.bg-navy { background: var(--navy); }
.bg-navy h2, .bg-navy h3, .bg-navy h4 { color: var(--white); }
.bg-navy p, .bg-navy li, .bg-navy address { color: rgba(255,255,255,0.8); }
.bg-navy .section-label { color: var(--amber); }

/* === GRIDS === */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }

/* === SERVICE CARDS === */
.service-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-img-wrap {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: linear-gradient(135deg, var(--navy-mid) 0%, var(--navy) 100%);
  position: relative;
}
.card-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.service-card:hover .card-img-wrap img { transform: scale(1.04); }
.card-img-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: rgba(255,255,255,0.18);
}
.card-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.card-body h3 { margin-bottom: 0.5rem; font-size: 1.15rem; }
.card-body p { color: var(--text-muted); font-size: 0.93rem; flex: 1; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-weight: 700;
  font-size: 0.88rem;
  margin-top: 1rem;
  color: var(--flame);
}
.card-link::after { content: ' →'; }

/* === TWO-COL CONTENT === */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}
.split-section.reverse > :first-child { order: 2; }
.split-section.reverse > :last-child { order: 1; }
.split-img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.split-img-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--navy-mid) 0%, var(--navy) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: rgba(255,255,255,0.15);
  box-shadow: var(--shadow-lg);
}

/* === ICON LIST === */
.icon-list { display: flex; flex-direction: column; gap: 0.55rem; margin: 1rem 0; padding-left: 0; }
.icon-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.95rem;
  padding-left: 0;
}
.icon-list li::before {
  content: '—';
  color: var(--flame);
  font-weight: 700;
  flex-shrink: 0;
  line-height: 1.7;
}
/* Hide any residual .ico spans */
.ico { display: none; }

/* === PROCESS STEPS === */
.steps { display: flex; flex-direction: column; gap: 1.5rem; }
.step { display: flex; gap: 1.25rem; align-items: flex-start; }
.step-num {
  width: 40px;
  height: 40px;
  background: var(--flame);
  color: var(--white);
  border-radius: 50%;
  font-weight: 800;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.step-body h4 { margin-bottom: 0.2rem; }
.step-body p { margin: 0; color: var(--text-muted); font-size: 0.93rem; }

/* Suppress any residual empty icon containers */
.industry-icon,
.trust-icon,
.card-img-icon { display: none; }

/* === TRUST STRIP === */
.trust-strip {
  background: var(--navy);
  padding: 2rem 0;
  border-top: 3px solid var(--flame);
}
.trust-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 0;
}
.trust-icon {
  width: 46px;
  height: 46px;
  background: rgba(244,140,6,0.12);
  border: 1px solid rgba(244,140,6,0.28);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.trust-text strong { display: block; color: var(--white); font-size: 0.92rem; }
.trust-text span { font-size: 0.78rem; color: rgba(255,255,255,0.55); }

/* === LOCATION CARDS === */
.location-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.location-card h3 { margin-bottom: 0.75rem; font-size: 1.05rem; color: var(--navy); }
.location-meta { display: flex; flex-direction: column; gap: 0.45rem; }
.location-meta span {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.location-meta .lbl { color: var(--text); font-weight: 600; min-width: 60px; }

/* === INDUSTRY BLOCKS === */
.industry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.industry-block {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 1.75rem;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.industry-block:hover { box-shadow: var(--shadow); border-color: rgba(232,93,4,0.5); }
.industry-icon { font-size: 2rem; margin-bottom: 0.75rem; }
.industry-block h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.industry-block p { font-size: 0.88rem; color: var(--text-muted); margin: 0; line-height: 1.55; }

/* === FORMS === */
.form-box {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-full { grid-column: 1 / -1; }
.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.form-group label { font-size: 0.87rem; font-weight: 600; color: var(--text); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.7rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  font-family: var(--font);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
  appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--flame);
  box-shadow: 0 0 0 3px rgba(232,93,4,0.1);
}
.form-group textarea { resize: vertical; min-height: 110px; }

/* === CTA BAND === */
.cta-band {
  background: linear-gradient(135deg, var(--flame) 0%, var(--amber) 100%);
  padding: 3.5rem 0;
  text-align: center;
}
.cta-band h2 { color: var(--white); margin-bottom: 0.75rem; }
.cta-band p { color: rgba(255,255,255,0.9); margin-bottom: 2rem; font-size: 1.05rem; max-width: 560px; margin-left: auto; margin-right: auto; }
.cta-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* === FOOTER === */
.site-footer {
  background: #071525;
  color: rgba(255,255,255,0.68);
  padding: 3.5rem 0 1.5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.footer-about .logo { margin-bottom: 1rem; }
.footer-about p { font-size: 0.87rem; line-height: 1.7; max-width: 280px; }
.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(244,140,6,0.12);
  border: 1px solid rgba(244,140,6,0.25);
  color: var(--amber);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 0.75rem;
}
.footer-col h4 {
  color: var(--white);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.55rem; }
.footer-col a {
  color: rgba(255,255,255,0.6);
  font-size: 0.87rem;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--amber); }
.footer-contact-line {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.87rem;
  margin-bottom: 0.65rem;
  color: rgba(255,255,255,0.65);
}
.footer-contact-line a { color: rgba(255,255,255,0.65); }
.footer-contact-line a:hover { color: var(--amber); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.8rem;
}
.footer-bottom a { color: var(--amber); }

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .split-section { grid-template-columns: 1fr; gap: 2rem; }
  .split-section.reverse > :first-child { order: unset; }
  .split-section.reverse > :last-child { order: unset; }
}
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .main-nav {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: #081c36;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    gap: 0.2rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.35);
    z-index: 99;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 0.75rem 1rem; font-size: 0.95rem; }
  .nav-cta { margin-left: 0; text-align: center; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .trust-inner { gap: 1.5rem; }
  .hero-stats { gap: 1.75rem; }
  .cta-actions { flex-direction: column; align-items: center; }
}
@media (max-width: 540px) {
  section { padding: 2.75rem 0; }
  .hero { padding: 3rem 0 2.75rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .industry-grid { grid-template-columns: 1fr; }
}