/* ==========================================================================
   U-TRON (BEIJING) ELECTRONICS CO. LTD. — CORPORATE STYLESHEET
   Recovered & Modernized Executive Static Landing Page
   Color Palette: Blue & White (#0345BF / #00c6fb / #0a193b / #ffffff)
   Zero external CSS frameworks. 100% semantic, modern, responsive CSS.
   ========================================================================== */

:root {
  --primary: #0345BF;
  --primary-hover: #023696;
  --primary-light: #2563eb;
  --primary-subtle: #eff6ff;
  --accent-cyan: #00c6fb;
  --accent-cyan-hover: #00a4d1;
  --navy-950: #050d1a;
  --navy-900: #0a193b;
  --navy-850: #0f224f;
  --navy-800: #152d66;
  --navy-700: #1e3a8a;
  
  --text-main: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-white: #ffffff;
  
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-alt: #f1f5f9;
  
  --border-light: #e2e8f0;
  --border-focus: #3b82f6;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(3, 69, 191, 0.25);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s ease;
  --transition-slow: 0.4s ease;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", "Helvetica Neue", Arial, sans-serif;
  --container-max: 1240px;
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--text-main);
  background-color: var(--bg-page);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-hover);
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   TOP EXECUTIVE ANNOUNCEMENT BAR
   ========================================================================== */
.top-bar {
  background-color: var(--navy-950);
  color: var(--text-light);
  font-size: 0.8125rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.badge-tag {
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  color: #ffffff;
  font-weight: 700;
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  cursor: pointer;
}

.lang-switch span.active {
  color: var(--accent-cyan);
}

.lang-switch span:not(.active) {
  opacity: 0.6;
}

.lang-switch a {
  color: #ffffff;
  text-decoration: none;
  opacity: 0.75;
  transition: opacity var(--transition-fast), color var(--transition-fast);
}

.lang-switch a:hover {
  opacity: 1;
  color: var(--accent-cyan);
}

/* ==========================================================================
   MAIN NAVBAR
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-link img {
  height: 48px;
  width: auto;
}

.brand-logo-utron {
  height: 52px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

.logo-link:hover .brand-logo-utron {
  transform: scale(1.02);
}

.about-official-badge {
  display: inline-flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.85rem 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  margin-bottom: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.about-utron-logo {
  height: 52px;
  width: auto;
  object-fit: contain;
}

.official-badge-text {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.official-badge-text strong {
  font-size: 0.9375rem;
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: 0.03em;
}

.official-badge-text span {
  font-size: 0.775rem;
  color: var(--text-muted);
  font-weight: 500;
}

.footer-logo-badge {
  display: inline-flex;
  background: #ffffff;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.25rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.footer-logo-badge img {
  height: 44px;
  width: auto;
  margin-bottom: 0 !important;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.4rem;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9125rem;
  padding: 0.5rem 0.25rem;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2.5px;
  background-color: var(--primary);
  border-radius: var(--radius-full);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lang-switch-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.5rem 0.85rem;
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--primary);
  background-color: #f0f7ff;
  border: 1.5px solid #bfdbfe;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-switch-btn:hover {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 2px 6px rgba(3, 69, 191, 0.25);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #023696);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(3, 69, 191, 0.28);
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0452e6, var(--primary));
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(3, 69, 191, 0.38);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-secondary:hover {
  background-color: var(--primary-subtle);
  color: var(--primary-hover);
}

.btn-light {
  background-color: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-light:hover {
  background-color: #ffffff;
  color: var(--navy-900);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--text-main);
}

.mobile-drawer {
  display: none;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--navy-950) 0%, var(--navy-900) 50%, #0d2763 100%);
  color: #ffffff;
  padding: 5.5rem 0 4.5rem;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(0, 198, 251, 0.18) 0%, rgba(3, 69, 191, 0.08) 50%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 3.5rem;
  position: relative;
  z-index: 2;
}

.hero-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
}

.hero-badge-pill .pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-cyan);
}

.hero-title {
  font-size: 2.85rem;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.hero-title span.highlight {
  background: linear-gradient(120deg, #38bdf8 0%, #60a5fa 50%, #ffffff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.125rem;
  color: #cbd5e1;
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.stat-item h3 {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--accent-cyan);
  line-height: 1.1;
  margin-bottom: 0.25rem;
}

.stat-item p {
  font-size: 0.775rem;
  color: var(--text-light);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  backdrop-filter: blur(12px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  position: relative;
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
}

.hero-card-header h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
}

.status-badge {
  background: rgba(34, 197, 94, 0.18);
  color: #4ade80;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.hero-featured-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-card-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  font-size: 0.8125rem;
}

.hero-card-spec-item {
  background: rgba(255, 255, 255, 0.05);
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-card-spec-item span.label {
  display: block;
  color: var(--text-light);
  font-size: 0.6875rem;
  text-transform: uppercase;
}

.hero-card-spec-item span.value {
  color: #ffffff;
  font-weight: 600;
}

/* ==========================================================================
   SECTION COMMON STYLES
   ========================================================================== */
section {
  padding: 5rem 0;
  position: relative;
}

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

.section-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 3.5rem;
}

.section-pill {
  display: inline-block;
  background-color: var(--primary-subtle);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--navy-900);
  line-height: 1.25;
  letter-spacing: -0.015em;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ==========================================================================
   ABOUT & COMPANY PROFILE
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.about-text h3 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--navy-900);
  margin-bottom: 1.25rem;
  line-height: 1.3;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  font-size: 1rem;
  line-height: 1.7;
}

.pillars-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin: 1.75rem 0;
}

.pillar-box {
  background-color: #ffffff;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--primary);
  box-shadow: var(--shadow-sm);
}

.pillar-box h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 0.35rem;
}

.pillar-box p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: 1.5;
}

.about-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  height: 200px;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(10, 25, 59, 0.9) 0%, transparent 100%);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 1rem 0.75rem 0.4rem;
}

/* Timeline Milestone Section */
.timeline-section {
  margin-top: 4.5rem;
  background-color: #ffffff;
  padding: 3rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}

.timeline-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.timeline-header h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--navy-900);
}

.timeline-flow {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.timeline-flow::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 5%;
  right: 5%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
  z-index: 1;
}

.timeline-card {
  position: relative;
  z-index: 2;
  background: var(--bg-page);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.timeline-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.timeline-year-dot {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--navy-900);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9375rem;
  margin-bottom: 1rem;
  box-shadow: 0 0 0 5px #ffffff;
}

.timeline-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 0.5rem;
}

.timeline-card p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   ENGINEERING INNOVATION HIGHLIGHTS (EXTRACTED FROM JOOMLA DOWNLOADS)
   ========================================================================== */
.innovations-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 1rem;
}

.innovation-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.innovation-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
}

.innovation-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(3, 69, 191, 0.3);
}

.innovation-badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
  background-color: var(--primary-subtle);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.innovation-card h3 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--navy-900);
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.innovation-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.tech-spec-highlight {
  background-color: var(--bg-alt);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.775rem;
  color: var(--navy-800);
  border-left: 3px solid var(--accent-cyan);
  line-height: 1.5;
}

/* ==========================================================================
   SERVICES & CAPABILITIES
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(3, 69, 191, 0.3);
}

.service-icon-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary-subtle), #dbeafe);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.service-card ul {
  list-style: none;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.service-card ul li {
  padding: 0.35rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.service-card ul li::before {
  content: '✓';
  color: var(--primary);
  font-weight: 800;
}

/* ==========================================================================
   PRODUCTS SHOWCASE WITH TABS
   ========================================================================== */
.product-tabs-wrapper {
  display: flex;
  justify-content: center;
  margin-bottom: 2.75rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.product-tabs {
  display: inline-flex;
  background-color: #ffffff;
  padding: 0.35rem;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  gap: 0.25rem;
}

.tab-btn {
  background: none;
  border: none;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--primary);
}

.tab-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--navy-900));
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(3, 69, 191, 0.3);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.product-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(3, 69, 191, 0.3);
}

.product-card-thumb {
  position: relative;
  background-color: #f1f5f9;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  overflow: hidden;
}

.product-card-thumb img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  transition: transform var(--transition-normal);
}

.product-card:hover .product-card-thumb img {
  transform: scale(1.06);
}

.product-category-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(4px);
  color: var(--navy-900);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.product-brand-logo {
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  max-height: 32px;
  max-width: 90px;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.85);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.product-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-part-no {
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.product-card-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.product-card-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.product-specs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.75rem;
  margin-bottom: 1.25rem;
}

.product-specs-table td {
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border-light);
}

.product-specs-table td.spec-name {
  color: var(--text-muted);
  width: 45%;
}

.product-specs-table td.spec-val {
  color: var(--navy-900);
  font-weight: 600;
  text-align: right;
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-light);
  padding-top: 1rem;
}

.cert-badges-inline {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.cert-badges-inline img {
  height: 20px;
  width: auto;
  opacity: 0.85;
}

.btn-datasheet {
  background: none;
  border: 1px solid var(--primary);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-datasheet:hover {
  background-color: var(--primary);
  color: #ffffff;
}

/* ==========================================================================
   LEADERSHIP & MANAGEMENT TEAM
   ========================================================================== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

.team-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  text-align: center;
}

.team-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.team-photo-wrap {
  position: relative;
  height: 240px;
  background-color: var(--navy-950);
  overflow: hidden;
}

.team-photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform var(--transition-normal);
}

.team-card:hover .team-photo-wrap img {
  transform: scale(1.05);
}

.team-info {
  padding: 1.25rem 1rem;
}

.team-info h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 0.25rem;
}

.team-role {
  color: var(--primary);
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.team-bio-snippet {
  font-size: 0.775rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* ==========================================================================
   GLOBAL REACH & PROJECTS
   ========================================================================== */
.global-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-bottom: 4rem;
}

.global-card {
  background-color: #ffffff;
  border-radius: var(--radius-md);
  padding: 1.5rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.global-card-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.global-card-head .flag-code {
  font-size: 0.8125rem;
  font-weight: 800;
  background: var(--navy-900);
  color: var(--accent-cyan);
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.global-card h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--navy-900);
}

.global-card p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 0.5rem;
}

.projects-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.projects-header h3 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--navy-900);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.project-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  height: 270px;
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.project-card:hover img {
  transform: scale(1.05);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 14, 32, 0.95) 0%, rgba(6, 14, 32, 0.45) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  color: #ffffff;
}

.project-tag {
  color: var(--accent-cyan);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}

.project-overlay h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.project-overlay p {
  font-size: 0.8125rem;
  color: #cbd5e1;
  line-height: 1.4;
}

/* ==========================================================================
   CERTIFICATIONS BANNER
   ========================================================================== */
.cert-section {
  background-color: #ffffff;
  padding: 3rem 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.cert-banner-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
}

.cert-title-group h4 {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--navy-900);
}

.cert-title-group p {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.cert-logos-stream {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2.25rem;
}

.cert-logos-stream img {
  max-height: 44px;
  width: auto;
  filter: grayscale(80%);
  opacity: 0.8;
  transition: all var(--transition-fast);
}

.cert-logos-stream img:hover {
  filter: grayscale(0%);
  opacity: 1;
  transform: scale(1.08);
}

/* ==========================================================================
   CONTACT & INQUIRIES
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 3.5rem;
}

.contact-info-panel {
  background: linear-gradient(135deg, var(--navy-950) 0%, var(--navy-900) 100%);
  color: #ffffff;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.contact-info-panel h3 {
  font-size: 1.65rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.contact-info-panel p.intro {
  color: #cbd5e1;
  font-size: 0.9375rem;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.contact-channel {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.channel-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.channel-text h5 {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-light);
  letter-spacing: 0.05em;
  margin-bottom: 0.2rem;
}

.channel-text p, .channel-text a {
  color: #ffffff;
  font-weight: 600;
  font-size: 0.9375rem;
}

.channel-text a:hover {
  color: var(--accent-cyan);
}

.contact-form-panel {
  background-color: #ffffff;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.contact-form-panel h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--navy-900);
  margin-bottom: 1.5rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

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

.form-group label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-main);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--text-main);
  background-color: #ffffff;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(3, 69, 191, 0.15);
}

/* ==========================================================================
   EXECUTIVE FOOTER
   ========================================================================== */
.footer {
  background-color: var(--navy-950);
  color: #94a3b8;
  padding: 4.5rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand img {
  height: 44px;
  width: auto;
  margin-bottom: 1.25rem;
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: #94a3b8;
  margin-bottom: 1.25rem;
}

.cba-tagline {
  font-size: 0.775rem;
  color: #64748b;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 0.75rem;
}

.footer-col h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1.25rem;
}

.footer-col ul {
  list-style: none;
  font-size: 0.875rem;
}

.footer-col ul li {
  margin-bottom: 0.65rem;
}

.footer-col ul li a {
  color: #94a3b8;
  transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8125rem;
  color: #64748b;
}

/* ==========================================================================
   MODAL WINDOWS
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(5, 13, 26, 0.75);
  backdrop-filter: blur(6px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 680px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: translateY(20px);
  transition: transform var(--transition-normal);
  padding: 2.25rem;
  position: relative;
}

.modal-backdrop.open .modal-box {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
}

.modal-close:hover {
  color: var(--text-main);
}

/* ==========================================================================
   ENGINEERING & MUNICIPAL RESOURCE CENTER
   ========================================================================== */
.resource-categories-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
  margin-top: 2rem;
}

.resource-category-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.resource-category-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.resource-cat-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-light);
}

.resource-cat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-subtle);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.resource-cat-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy-900);
}

.resource-cat-header p {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.resource-file-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex-grow: 1;
}

.resource-file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0.85rem;
  background: var(--bg-page);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.resource-file-item:hover {
  background: #ffffff;
  border-color: var(--primary-light);
  box-shadow: 0 2px 6px rgba(3, 69, 191, 0.08);
}

.resource-file-info {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  overflow: hidden;
}

.file-badge {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.file-badge.pdf { background: #fee2e2; color: #dc2626; }
.file-badge.xls { background: #dcfce7; color: #16a34a; }
.file-badge.doc { background: #dbeafe; color: #1d4ed8; }
.file-badge.ies { background: #fef3c7; color: #d97706; }

.resource-file-name {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-decoration: none;
}

.resource-file-meta {
  font-size: 0.725rem;
  color: var(--text-muted);
}

.btn-file-dl {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
  flex-shrink: 0;
  transition: background var(--transition-fast);
}

.btn-file-dl:hover {
  background: var(--primary-hover);
  color: #ffffff;
}

/* Projects Showcase Visual Cards */
.project-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.project-visual-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.project-visual-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.project-visual-thumb {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: var(--navy-950);
}

.project-visual-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.project-visual-card:hover .project-visual-thumb img {
  transform: scale(1.05);
}

.project-location-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(10, 25, 59, 0.85);
  backdrop-filter: blur(4px);
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.project-visual-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-visual-body h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 0.5rem;
}

.project-visual-body p {
  font-size: 0.825rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1rem;
  flex-grow: 1;
}

.project-metric-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-subtle);
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  width: fit-content;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */
@media (max-width: 1200px) {
  .nav-links {
    gap: 0.85rem;
  }
  .nav-links a {
    font-size: 0.84rem;
    padding: 0.5rem 0.15rem;
  }
}

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .innovations-grid,
  .services-grid,
  .products-grid,
  .projects-grid,
  .global-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .team-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .timeline-flow {
    grid-template-columns: repeat(2, 1fr);
  }
  .timeline-flow::before {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 992px) {
  .nav-links, .nav-actions {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  
  /* Mobile Drawer */
  .mobile-drawer {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #ffffff;
    border-bottom: 2px solid var(--primary);
    box-shadow: var(--shadow-xl);
    padding: 1.25rem 1.5rem;
    flex-direction: column;
    gap: 0.25rem;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
    pointer-events: none;
  }
  .mobile-drawer.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }
  .mobile-drawer a {
    font-size: 1rem;
    font-weight: 600;
    color: var(--navy-900);
    padding: 0.65rem 0;
    border-bottom: 1px solid var(--border-light);
    text-decoration: none;
    transition: color var(--transition-fast);
  }
  .mobile-drawer a:last-child {
    border-bottom: none;
  }
  .mobile-drawer a:hover,
  .mobile-drawer a.active {
    color: var(--primary);
  }
}

@media (max-width: 768px) {
  
  .brand-logo-utron {
    height: 44px;
  }
  .about-official-badge {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .hero-title {
    font-size: 2.15rem;
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .innovations-grid,
  .services-grid,
  .products-grid,
  .projects-grid,
  .global-grid,
  .team-grid,
  .form-grid,
  .resource-categories-grid,
  .project-gallery-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
}