/* ============================================================
   AAA GAS ENGINEERING — INNER PAGES STYLESHEET
   File: css/pages.css
   Imports: Must load AFTER css/style.css
============================================================ */

/* ── Nav Products Dropdown ── */
.nav-dropdown {
  position: relative;
}
.nav-dropdown > a {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-dropdown > a::after {
  content: '▾';
  font-size: 10px;
  opacity: 0.7;
}
.dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 16px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(11, 28, 53, 0.98);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  min-width: 220px;
  padding: 8px 0;
  z-index: 2000;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}
.nav-dropdown:hover .dropdown-menu {
  display: block;
}
.dropdown-menu a {
  display: block;
  padding: 10px 20px;
  color: rgba(255,255,255,0.8) !important;
  font-size: 13px !important;
  text-transform: none !important;
  letter-spacing: 0 !important;
  font-weight: 400 !important;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: background 0.15s, color 0.15s;
  text-decoration: none;
  white-space: nowrap;
}
.dropdown-menu a:last-child { border-bottom: none; }
.dropdown-menu a:hover {
  background: rgba(21, 87, 192, 0.3);
  color: white !important;
}

/* Mobile dropdown products list */
.mobile-products-list {
  display: none;
  flex-direction: column;
  background: rgba(255,255,255,0.04);
}
.mobile-products-list.open { display: flex; }
.mobile-products-list a {
  padding: 11px 10% !important;
  font-size: 13px !important;
  text-transform: none !important;
  letter-spacing: 0 !important;
}

/* ── Page Hero (inner pages) ── */
.page-hero {
  background: var(--navy);
  min-height: 280px;
  display: flex;
  align-items: flex-end;
  padding: 120px 5% 50px;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(21,87,192,0.2) 0%, transparent 60%);
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(240,165,0,0.5), transparent);
}
.page-hero-inner { position: relative; z-index: 1; max-width: 800px; }
.page-hero-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.page-hero-tag::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--gold);
}
.page-hero h1 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(32px, 5vw, 58px);
  font-weight: 800;
  color: white;
  line-height: 1;
  margin-bottom: 16px;
}
.page-hero h1 span { color: var(--gold); }
.page-hero-sub {
  font-size: 16px;
  color: rgba(255,255,255,0.65);
  max-width: 600px;
  line-height: 1.7;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}
.breadcrumb a { color: rgba(255,255,255,0.5); text-decoration: none; }
.breadcrumb a:hover { color: white; }
.breadcrumb span { color: rgba(255,255,255,0.25); }

/* ── Inner page sections ── */
.inner-section {
  padding: 80px 5%;
  max-width: 1200px;
  margin: 0 auto;
}
.inner-section.bg-alt {
  max-width: 100%;
  background: #f8fafc;
  padding: 80px 5%;
}
.inner-section.bg-alt .inner-section-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.inner-section.bg-dark {
  max-width: 100%;
  background: var(--navy);
  padding: 80px 5%;
  color: white;
}
.inner-section.bg-dark .section-title { color: white; }
.inner-section.bg-dark .section-tag { color: var(--gold); }
.inner-section.bg-dark p { color: rgba(255,255,255,0.7); }

/* ── Product detail layout ── */
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-top: 20px;
}
.product-detail-img {
  background: #f0f4f8;
  border-radius: 16px;
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-detail-img img {
  max-height: 400px;
  width: 100%;
  object-fit: contain;
}
.product-detail-content .section-tag { margin-bottom: 8px; }
.product-detail-content h2 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 16px;
  line-height: 1.05;
}
.product-detail-content p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 16px;
}
.product-features {
  margin: 24px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.product-feature {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text);
}
.product-feature::before {
  content: '✓';
  color: var(--blue);
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ── Spec table ── */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  font-size: 14px;
}
.spec-table th {
  background: var(--navy);
  color: white;
  padding: 12px 16px;
  text-align: left;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 13px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.spec-table td {
  padding: 11px 16px;
  border-bottom: 1px solid #e8edf5;
  color: var(--text);
}
.spec-table tr:nth-child(even) td { background: #f8fafc; }
.spec-table tr:hover td { background: #eef3fa; }

/* ── Models grid ── */
.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 32px;
}
.model-card {
  background: white;
  border: 1px solid #e8edf5;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.model-card:hover {
  border-color: var(--blue);
  box-shadow: 0 4px 20px rgba(21,87,192,0.1);
}
.model-card-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}
.model-card-cap {
  font-size: 13px;
  color: var(--blue);
  font-weight: 600;
}
.model-card-desc {
  font-size: 12px;
  color: var(--muted);
  margin-top: 8px;
  line-height: 1.5;
}

/* ── Applications ── */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-top: 32px;
}
.app-card {
  background: white;
  border-radius: 12px;
  padding: 24px 16px;
  text-align: center;
  border: 1px solid #e8edf5;
}
.app-icon { font-size: 32px; margin-bottom: 10px; }
.app-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
}

/* ── FAQ ── */
.faq-list { margin-top: 32px; }
.faq-item {
  border-bottom: 1px solid #e8edf5;
  padding: 20px 0;
}
.faq-question {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}
.faq-question::after { content: '+'; font-size: 22px; color: var(--blue); }
.faq-item.open .faq-question::after { content: '−'; }
.faq-answer {
  display: none;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.75;
  padding-top: 12px;
}
.faq-item.open .faq-answer { display: block; }

/* ── Gallery ── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 32px;
}
.gallery-item {
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/3;
  cursor: pointer;
  background: #e8edf5;
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}
.gallery-item:hover img { transform: scale(1.05); }
.gallery-item-label {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(11,28,53,0.9));
  color: white;
  padding: 24px 16px 12px;
  font-size: 13px;
  font-weight: 600;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 16px;
}

/* ── CTA Banner ── */
.cta-banner {
  background: linear-gradient(135deg, var(--navy) 0%, #1a3a6b 100%);
  padding: 60px 5%;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.cta-banner h2 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  color: white;
  margin-bottom: 12px;
}
.cta-banner p { color: rgba(255,255,255,0.65); margin-bottom: 28px; font-size: 16px; }
.cta-banner .btn-primary {
  background: var(--gold);
  color: var(--navy);
  padding: 14px 36px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  display: inline-block;
  font-family: 'Barlow Condensed', sans-serif;
  letter-spacing: 0.5px;
  transition: background 0.2s;
}
.cta-banner .btn-primary:hover { background: #e09400; }

/* ── About page ── */
.timeline {
  position: relative;
  padding-left: 40px;
  margin-top: 32px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 12px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--blue), var(--gold));
}
.timeline-item {
  position: relative;
  margin-bottom: 36px;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -34px;
  top: 6px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--blue);
  border: 2px solid white;
  box-shadow: 0 0 0 3px var(--blue);
}
.timeline-year {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--blue);
  margin-bottom: 4px;
}
.timeline-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}
.timeline-desc { font-size: 14px; color: var(--muted); line-height: 1.6; }

/* ── Cert cards ── */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 32px;
}
.cert-card {
  background: white;
  border: 1px solid #e8edf5;
  border-radius: 16px;
  padding: 28px 20px;
  text-align: center;
  transition: box-shadow 0.2s;
}
.cert-card:hover { box-shadow: 0 8px 30px rgba(21,87,192,0.1); }
.cert-card-icon { font-size: 36px; margin-bottom: 12px; }
.cert-card-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}
.cert-card-desc { font-size: 12px; color: var(--muted); line-height: 1.5; }

/* ── Team cards ── */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 32px;
}
.team-card {
  background: white;
  border-radius: 16px;
  padding: 28px 20px;
  text-align: center;
  border: 1px solid #e8edf5;
}
.team-avatar {
  width: 70px; height: 70px;
  border-radius: 50%;
  background: var(--navy);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 24px;
  font-weight: 800;
  color: white;
  margin: 0 auto 14px;
}
.team-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
}
.team-role { font-size: 13px; color: var(--blue); margin-top: 4px; }
.team-phone { font-size: 12px; color: var(--muted); margin-top: 8px; }

/* ── Products listing page ── */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 40px;
}
.product-listing-card {
  background: white;
  border: 1px solid #e8edf5;
  border-radius: 16px;
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s;
  text-decoration: none;
  color: inherit;
  display: block;
}
.product-listing-card:hover {
  box-shadow: 0 12px 40px rgba(21,87,192,0.12);
  transform: translateY(-4px);
}
.product-listing-img {
  background: #f0f4f8;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.product-listing-img img {
  max-height: 160px;
  object-fit: contain;
}
.product-listing-body { padding: 20px; }
.product-listing-badge {
  display: inline-block;
  background: rgba(21,87,192,0.1);
  color: var(--blue);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.product-listing-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 8px;
}
.product-listing-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 16px;
}
.product-listing-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: 6px;
}
.product-listing-link::after { content: '→'; }

/* ── Responsive inner pages ── */
@media (max-width: 900px) {
  .product-detail-grid { grid-template-columns: 1fr; gap: 32px; }
  .product-features { grid-template-columns: 1fr; }
  .applications-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}
@media (max-width: 600px) {
  .page-hero { min-height: 220px; padding: 100px 5% 36px; }
  .models-grid { grid-template-columns: 1fr 1fr; }
  .cert-grid { grid-template-columns: 1fr 1fr; }
  .products-grid { grid-template-columns: 1fr; }
}