/* Rutherford Engineering Custom Styling */
:root {
  --primary-slate: #0f172a;
  --secondary-slate: #1e293b;
  --accent-amber: #f59e0b;
  --accent-blue: #0284c7;
  --text-main: #334155;
  --text-muted: #64748b;
  --bg-light: #f8fafc;
}

body {
  font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-main);
  background-color: #ffffff;
}

h1, h2, h3, h4, h5, h6, .eng-title {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
}

/* Header & Top Bar */
.header-area {
  background-color: #0f172a !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  border-bottom: 2px solid var(--accent-amber);
  top: 0 !important;
  position: relative;
}

.top-bar-eng {
  background-color: #020617;
  color: #94a3b8;
  font-size: 13px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(245, 158, 11, 0.2);
}
.top-bar-eng a {
  color: #cbd5e1;
  text-decoration: none;
}
.top-bar-eng a:hover {
  color: var(--accent-amber);
}

.main-nav .logo img {
  max-height: 46px;
}

.main-nav .nav li a {
  color: #f1f5f9 !important;
  font-weight: 600;
  font-size: 14.5px;
  letter-spacing: 0.3px;
  transition: all 0.3s ease;
}
.main-nav .nav li a:hover,
.main-nav .nav li a.active {
  color: var(--accent-amber) !important;
}

/* Dropdown Menu */
.main-nav .nav li.has-sub {
  position: relative;
}
.main-nav .nav li.has-sub ul.sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #0f172a;
  border: 1px solid var(--accent-amber);
  border-radius: 6px;
  min-width: 270px;
  padding: 10px 0;
  display: none;
  z-index: 999;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
}
.main-nav .nav li.has-sub:hover ul.sub-menu {
  display: block;
}
.main-nav .nav li.has-sub ul.sub-menu li {
  display: block;
  margin: 0;
}
.main-nav .nav li.has-sub ul.sub-menu li a {
  color: #e2e8f0 !important;
  font-size: 13.5px;
  padding: 8px 20px;
  display: block;
  text-transform: none;
  font-weight: 500;
}
.main-nav .nav li.has-sub ul.sub-menu li a:hover {
  background-color: #1e293b;
  color: var(--accent-amber) !important;
}

/* Banner area */
.hero-engineering {
  position: relative;
  min-height: 600px;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
}
.hero-engineering .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.75) 100%);
}
.hero-engineering .content-box {
  position: relative;
  z-index: 2;
  padding: 120px 0 90px;
}
.hero-engineering h6 {
  color: var(--accent-amber);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 14.5px;
  font-weight: 700;
}
.hero-engineering h1 {
  color: #ffffff;
  font-size: 44px;
  font-weight: 800;
  line-height: 1.25;
  margin: 15px 0 20px;
}
.hero-engineering p {
  color: #cbd5e1;
  font-size: 17px;
  line-height: 1.7;
  max-width: 800px;
}

/* Inner Page Header */
.inner-page-header {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  padding: 70px 0;
  border-bottom: 3px solid var(--accent-amber);
  color: #ffffff;
}
.inner-page-header h6 {
  color: var(--accent-amber);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 13.5px;
  font-weight: 700;
}
.inner-page-header h1 {
  font-size: 36px;
  font-weight: 800;
  margin-top: 8px;
}

/* Buttons */
.btn-amber {
  background-color: var(--accent-amber);
  color: #0f172a !important;
  font-weight: 700;
  padding: 12px 28px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-size: 13.5px;
  border: none;
  transition: all 0.3s ease;
  display: inline-block;
  text-decoration: none;
}
.btn-amber:hover {
  background-color: #d97706;
  color: #ffffff !important;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
  transform: translateY(-2px);
}

.btn-slate-outline {
  border: 2px solid var(--accent-amber);
  color: var(--accent-amber) !important;
  background: transparent;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-size: 13px;
  transition: all 0.3s ease;
  display: inline-block;
  text-decoration: none;
}
.btn-slate-outline:hover {
  background-color: var(--accent-amber);
  color: #0f172a !important;
}

/* Service Cards */
.eng-service-card {
  background: #ffffff;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0,0,0,0.04);
}
.eng-service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.12);
  border-color: var(--accent-amber);
}
.eng-service-card .thumb {
  height: 220px;
  overflow: hidden;
}
.eng-service-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.eng-service-card:hover .thumb img {
  transform: scale(1.05);
}
.eng-service-card .down-content {
  padding: 24px;
}
.eng-service-card h4 {
  font-size: 19px;
  color: var(--primary-slate);
  margin-bottom: 12px;
}
.eng-service-card p {
  color: var(--text-muted);
  font-size: 14.5px;
  line-height: 1.6;
}

/* Fact counters */
.counter-box-eng {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 8px;
  padding: 24px;
  text-align: center;
  margin-bottom: 20px;
}
.counter-digit-eng {
  font-size: 42px;
  font-weight: 800;
  color: var(--accent-amber);
  font-family: 'Montserrat', sans-serif;
}
.counter-title-eng {
  color: #cbd5e1;
  font-size: 14px;
  margin-top: 6px;
  font-weight: 500;
}

/* Accordion */
.accordion-eng .accordion-item {
  border: 1px solid #e2e8f0;
  margin-bottom: 12px;
  border-radius: 6px;
  overflow: hidden;
}
.accordion-eng .accordion-button {
  background-color: #f8fafc;
  color: #0f172a;
  font-weight: 700;
  font-size: 16px;
}
.accordion-eng .accordion-button:not(.collapsed) {
  background-color: #0f172a;
  color: var(--accent-amber);
}

/* Footer */
footer.corporate-footer {
  background-color: #090d16;
  color: #94a3b8;
  padding: 60px 0 30px;
  border-top: 3px solid var(--accent-amber);
  font-size: 14px;
}
footer.corporate-footer h5 {
  color: #ffffff;
  font-size: 17px;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}
footer.corporate-footer h5::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--accent-amber);
}
footer.corporate-footer a {
  color: #cbd5e1;
  text-decoration: none;
  transition: color 0.2s ease;
}
footer.corporate-footer a:hover {
  color: var(--accent-amber);
}
footer.corporate-footer .copyright-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 40px;
  padding-top: 25px;
  font-size: 13px;
}

.form-control:focus, .form-select:focus {
  border-color: var(--accent-amber);
  box-shadow: 0 0 0 0.25rem rgba(245, 158, 11, 0.25);
}