@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Oswald:wght@400;500;600;700&display=swap');

/* --- DESIGN SYSTEM & CSS VARIABLES --- */
:root {
  --primary: #1A2357;
  --primary-rgb: 26, 35, 87;
  --primary-light: #2a3782;
  --accent: #CC2229;
  --accent-hover: #a61a1f;
  --text-body: #4A5568;
  --text-heading: #2D3748;
  --bg-light: #F4F6FA;
  --bg-white: #FFFFFF;
  --border-color: #E2E8F0;
  
  --font-heading: 'Oswald', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-premium: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  --max-width: 1280px;
}

/* --- BASE STYLES & RESET --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-heading);
  font-weight: 600;
  letter-spacing: 0.5px;
  line-height: 1.2;
}

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

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

ul {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
}

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

.section-padding {
  padding: 5rem 0;
}

.bg-slate {
  background-color: var(--bg-light);
}

.text-center {
  text-align: center;
}

.accent-text {
  color: var(--accent);
}

.navy-text {
  color: var(--primary);
}

.section-title-wrapper {
  margin-bottom: 3.5rem;
  text-align: center;
}

.section-title {
  font-size: 2.5rem;
  text-transform: uppercase;
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
  color: var(--primary);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background-color: var(--accent);
  border-radius: var(--border-radius-sm);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-body);
  max-width: 700px;
  margin: 0.5rem auto 0 auto;
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.8rem;
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: var(--transition-smooth);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.9rem;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--bg-white);
}

.btn-primary:hover {
  background-color: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background-color: var(--accent);
  color: var(--bg-white);
}

.btn-accent:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background-color: var(--primary);
  color: var(--bg-white);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
}

/* --- TOP HEADER & NAVBAR --- */
.top-bar {
  background-color: #0f153a;
  color: var(--bg-light);
  padding: 0.5rem 0;
  font-size: 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.top-info span {
  margin-right: 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.top-info i {
  color: var(--accent);
}

.top-badges span {
  margin-left: 1rem;
  background-color: rgba(255, 255, 255, 0.15);
  padding: 0.2rem 0.6rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-white);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

header.scrolled {
  box-shadow: var(--shadow-lg);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.8rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo img {
  height: 50px;
  width: auto;
  transition: var(--transition-smooth);
}

header.scrolled .logo img {
  height: 42px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-heading);
  text-transform: uppercase;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: var(--transition-smooth);
}

.nav-link:hover, .nav-link.active {
  color: var(--accent);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.phone-link {
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
}

.phone-link i {
  color: var(--accent);
}

.hamburger {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
}

.hamburger span {
  display: block;
  width: 28px;
  height: 3px;
  background-color: var(--primary);
  border-radius: var(--border-radius-sm);
  transition: var(--transition-smooth);
}

/* --- HERO SECTION --- */
.hero {
  position: relative;
  background: linear-gradient(rgba(15, 21, 58, 0.85), rgba(15, 21, 58, 0.85)), url('https://images.unsplash.com/photo-1581092160562-40aa08e78837?q=80&w=1920') no-repeat center center/cover;
  padding: 8rem 0 7rem 0;
  color: var(--bg-white);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  background-color: var(--accent);
  color: var(--bg-white);
  padding: 0.3rem 0.8rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border-radius: var(--border-radius-sm);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--bg-white);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  line-height: 1.1;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  color: #CBD5E1;
  max-width: 650px;
  font-weight: 300;
}

.hero-ctas {
  display: flex;
  gap: 1.2rem;
  margin-bottom: 3.5rem;
}

.trust-badges-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.trust-badge {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  padding: 1rem;
  border-radius: var(--border-radius-md);
  text-align: center;
  transition: var(--transition-smooth);
}

.trust-badge:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-3px);
  border-color: var(--accent);
}

.trust-badge i {
  color: var(--accent);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  display: block;
}

.trust-badge span {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero-form-card {
  background-color: var(--bg-white);
  padding: 2.5rem 2rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-premium);
  color: var(--text-body);
  border-top: 5px solid var(--accent);
}

.hero-form-card h3 {
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.hero-form-card p {
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  color: #64748B;
}

/* --- PRODUCT DIRECTORY SECTION --- */
.product-filters {
  background-color: var(--bg-white);
  padding: 1.5rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  border: 1px solid var(--border-color);
}

.filter-top {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}

.search-box-wrapper {
  position: relative;
  flex: 1;
  max-width: 450px;
}

.search-box-wrapper input {
  width: 100%;
  padding: 0.8rem 1rem 0.8rem 2.8rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background-color: var(--bg-light);
  color: var(--text-heading);
  transition: var(--transition-fast);
}

.search-box-wrapper input:focus {
  border-color: var(--primary);
  background-color: var(--bg-white);
  box-shadow: 0 0 0 3px rgba(26, 35, 87, 0.15);
}

.search-box-wrapper i {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: #94A3B8;
}

.tabs-wrapper {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.3rem;
  scrollbar-width: thin;
}

.tab-btn {
  padding: 0.7rem 1.4rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  text-transform: uppercase;
  font-weight: 500;
  border-radius: var(--border-radius-sm);
  background-color: var(--bg-light);
  color: var(--text-body);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-smooth);
}

.tab-btn:hover {
  background-color: #E2E8F0;
  color: var(--text-heading);
}

.tab-btn.active {
  background-color: var(--primary);
  color: var(--bg-white);
}

.sub-tabs-wrapper {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.3rem;
  scrollbar-width: thin;
}

.sub-tab-btn {
  padding: 0.5rem 1rem;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  text-transform: uppercase;
  font-weight: 500;
  border-radius: var(--border-radius-sm);
  background-color: var(--bg-white);
  color: var(--text-body);
  border: 1px solid var(--border-color);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-smooth);
}

.sub-tab-btn:hover {
  background-color: #F1F5F9;
  color: var(--text-heading);
  border-color: #CBD5E1;
}

.sub-tab-btn.active {
  background-color: var(--accent);
  color: var(--bg-white);
  border-color: var(--accent);
}

.results-count {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-body);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  transition: opacity 0.3s ease;
}

.product-card {
  background-color: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-sm);
  height: 100%;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.product-img-holder {
  background-color: #f8fafc;
  height: 180px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-color);
  padding: 1.5rem;
}

.product-icon-svg {
  width: 70px;
  height: 70px;
  fill: var(--primary);
  opacity: 0.85;
  transition: var(--transition-smooth);
}

.product-card:hover .product-icon-svg {
  transform: scale(1.1);
  fill: var(--accent);
}

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

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

.product-badge {
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
  background-color: rgba(26, 35, 87, 0.1);
  color: var(--primary);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: var(--border-radius-sm);
  letter-spacing: 0.5px;
}

.product-card[data-category="valves"] .product-badge {
  background-color: rgba(26, 35, 87, 0.1);
  color: var(--primary);
}

.product-card[data-category="automation"] .product-badge {
  background-color: rgba(74, 85, 104, 0.1);
  color: var(--text-heading);
}

.product-card[data-category="sensors"] .product-badge {
  background-color: rgba(204, 34, 41, 0.1);
  color: var(--accent);
}

.product-card[data-category="detectors"] .product-badge {
  background-color: rgba(34, 197, 94, 0.1);
  color: #22C55E;
}

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

.product-title {
  font-size: 1.25rem;
  color: var(--text-heading);
  margin-bottom: 0.8rem;
  text-transform: uppercase;
  min-height: 48px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-spec-preview {
  font-size: 0.85rem;
  color: var(--text-body);
  background-color: var(--bg-light);
  padding: 0.6rem 0.8rem;
  border-radius: var(--border-radius-sm);
  margin-bottom: 1.2rem;
  flex-grow: 1;
  border-left: 3px solid var(--accent);
  display: flex;
  align-items: center;
}

.product-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  background-color: var(--bg-light);
  border-radius: var(--border-radius-lg);
  border: 1px dashed var(--border-color);
}

.no-results i {
  font-size: 3rem;
  color: #94A3B8;
  margin-bottom: 1rem;
}

/* --- INDUSTRIES SERVED --- */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.industry-card {
  position: relative;
  height: 200px;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.industry-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.industry-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 35, 87, 0.95), rgba(26, 35, 87, 0.4));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  transition: var(--transition-smooth);
}

.industry-card:hover img {
  transform: scale(1.1);
}

.industry-card:hover .industry-overlay {
  background: linear-gradient(to top, rgba(204, 34, 41, 0.95), rgba(26, 35, 87, 0.6));
}

.industry-icon-wrapper {
  background-color: rgba(255, 255, 255, 0.15);
  width: 45px;
  height: 45px;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.8rem;
  font-size: 1.3rem;
  color: var(--bg-white);
  transition: var(--transition-smooth);
}

.industry-card:hover .industry-icon-wrapper {
  background-color: var(--bg-white);
  color: var(--accent);
  transform: rotateY(360deg);
}

.industry-card h3 {
  color: var(--bg-white);
  font-size: 1.4rem;
  text-transform: uppercase;
  margin: 0;
}

/* --- WHY CHOOSE IES --- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.why-card {
  background-color: var(--bg-white);
  padding: 2.5rem 2rem;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  border-bottom: 4px solid var(--border-color);
  transition: var(--transition-smooth);
  text-align: center;
}

.why-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-bottom-color: var(--accent);
}

.why-icon {
  width: 65px;
  height: 65px;
  background-color: rgba(26, 35, 87, 0.05);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 1.5rem auto;
  transition: var(--transition-smooth);
}

.why-card:hover .why-icon {
  background-color: var(--accent);
  color: var(--bg-white);
  transform: scale(1.1);
}

.why-card h3 {
  font-size: 1.4rem;
  color: var(--primary);
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.why-card p {
  font-size: 0.95rem;
  color: var(--text-body);
}

/* --- TECHNICAL STANDARDS SECTION --- */
.tech-standards-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: flex-start;
}

.standards-intro h3 {
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}

.standards-intro p {
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

.standards-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 2rem;
}

.standard-badge {
  background-color: var(--bg-white);
  border: 1px solid var(--border-color);
  color: var(--primary);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  padding: 0.6rem 1.5rem;
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-sm);
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  background-color: var(--bg-white);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

.tech-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.tech-table th {
  background-color: var(--primary);
  color: var(--bg-white);
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-size: 1rem;
  font-weight: 500;
  padding: 1rem 1.2rem;
}

.tech-table td {
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.9rem;
}

.tech-table tr:last-child td {
  border-bottom: none;
}

.tech-table tr:nth-child(even) {
  background-color: var(--bg-light);
}

/* --- CONTACT & INQUIRY SECTION --- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 3rem;
}

.contact-info-column {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-card {
  background-color: var(--bg-white);
  padding: 2rem;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  border-left: 5px solid var(--primary);
  display: flex;
  gap: 1.5rem;
}

.contact-card-icon {
  font-size: 1.8rem;
  color: var(--accent);
}

.contact-card-details h4 {
  font-size: 1.2rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.contact-card-details p {
  font-size: 0.95rem;
  color: var(--text-body);
  margin-bottom: 0.3rem;
}

.contact-card-details a {
  color: inherit;
}

.contact-card-details a:hover {
  color: var(--accent);
}

.map-wrapper {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  height: 280px;
  border: 1px solid var(--border-color);
}

.map-wrapper iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.form-wrapper {
  background-color: var(--bg-white);
  padding: 3rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.form-wrapper h3 {
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  border-bottom: 2px solid var(--bg-light);
  padding-bottom: 0.8rem;
}

.inquiry-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-heading);
  text-transform: uppercase;
}

.form-group input, .form-group select, .form-group textarea {
  padding: 0.8rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background-color: var(--bg-light);
  color: var(--text-heading);
  transition: var(--transition-fast);
  width: 100%;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--primary);
  background-color: var(--bg-white);
  box-shadow: 0 0 0 3px rgba(26, 35, 87, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-wrapper button {
  grid-column: span 2;
  margin-top: 1rem;
}

/* --- FOOTER --- */
footer {
  background-color: #0f153a;
  color: #E2E8F0;
  padding: 4rem 0 2rem 0;
  border-top: 5px solid var(--accent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .logo {
  margin-bottom: 1.2rem;
}

.footer-brand .logo img {
  height: 48px;
  filter: drop-shadow(0px 2px 5px rgba(0,0,0,0.5));
}

.footer-tagline {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 1rem;
  font-weight: 600;
}

.footer-about {
  font-size: 0.9rem;
  line-height: 1.7;
  color: #94A3B8;
}

.footer-column h4 {
  font-size: 1.2rem;
  color: var(--bg-white);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-column h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: var(--accent);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: #94A3B8;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-links a:hover {
  color: var(--bg-white);
  padding-left: 5px;
}

.footer-links a i {
  color: var(--accent);
  font-size: 0.8rem;
}

.footer-contacts {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.9rem;
  color: #94A3B8;
}

.footer-contacts li {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
}

.footer-contacts li i {
  color: var(--accent);
  margin-top: 0.2rem;
}

.footer-standards-badges {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.footer-standard-badge {
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.3rem 0.8rem;
  border-radius: var(--border-radius-sm);
  color: var(--bg-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #64748B;
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom-links a:hover {
  color: var(--bg-white);
}

/* --- TECHNICAL SPECIFICATION MODALS --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 21, 58, 0.8);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background-color: var(--bg-white);
  width: 100%;
  max-width: 750px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-premium);
  overflow: hidden;
  position: relative;
  transform: translateY(30px);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-top: 6px solid var(--accent);
}

.modal-overlay.open .modal-content {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 2rem;
  color: var(--text-body);
  cursor: pointer;
  transition: var(--transition-fast);
  background: transparent;
  line-height: 1;
}

.modal-close:hover {
  color: var(--accent);
  transform: rotate(90deg);
}

.modal-header {
  padding: 2rem 2.5rem 1rem 2.5rem;
}

.modal-cat-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

.modal-header h3 {
  font-size: 1.8rem;
  color: var(--primary);
  text-transform: uppercase;
}

.modal-body {
  padding: 0 2.5rem 2.5rem 2.5rem;
  max-height: 70vh;
  overflow-y: auto;
}

.modal-section {
  margin-top: 1.5rem;
}

.modal-section-title {
  font-size: 1.1rem;
  color: var(--text-heading);
  text-transform: uppercase;
  border-bottom: 2px solid var(--bg-light);
  padding-bottom: 0.4rem;
  margin-bottom: 0.8rem;
}

.modal-desc {
  font-size: 0.95rem;
  color: var(--text-body);
  margin-bottom: 1.2rem;
}

.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  background-color: var(--bg-light);
  padding: 1.2rem;
  border-radius: var(--border-radius-md);
  margin-bottom: 1.5rem;
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: #64748B;
  text-transform: uppercase;
}

.spec-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-heading);
}

.modal-cta-wrapper {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 2rem;
}

/* --- OUR CLIENTS --- */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  align-items: center;
  justify-items: center;
}

.client-logo-card {
  background-color: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 1.5rem 1rem;
  width: 100%;
  max-width: 240px;
  height: 145px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
  cursor: pointer;
  text-align: center;
}

.client-logo-card img {
  max-width: 100%;
  max-height: 70px;
  object-fit: contain;
  filter: grayscale(0%);
  opacity: 1;
  transition: var(--transition-smooth);
}

.client-logo-card span {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-body);
  transition: var(--transition-smooth);
}

.client-logo-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
  background-color: #fafbfc;
}

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

.client-logo-card:hover span {
  color: var(--primary);
}

/* --- MOBILE RESPONSIVENESS --- */
@media (max-width: 1100px) {
  .hero h1 {
    font-size: 3rem;
  }
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1.25fr 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-form-card {
    max-width: 500px;
    margin: 0 auto;
  }
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .industries-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .why-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .tech-standards-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .clients-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .top-bar {
    display: none;
  }
  
  .hamburger {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--bg-white);
    flex-direction: column;
    padding: 3rem 1.5rem;
    gap: 2rem;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-lg);
    align-items: flex-start;
  }
  
  .nav-menu.open {
    left: 0;
  }
  
  .nav-cta {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
  }
  
  .phone-link {
    margin-bottom: 0.5rem;
  }
  
  .nav-cta button {
    width: 100%;
  }

  .hamburger.open span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }
  
  .hamburger.open span:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.open span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }

  .filter-top {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-box-wrapper {
    max-width: 100%;
  }
  
  .inquiry-form {
    grid-template-columns: 1fr;
  }
  
  .form-group.full-width {
    grid-column: span 1;
  }
  
  .form-wrapper button {
    grid-column: span 1;
  }
}

@media (max-width: 500px) {
  .hero h1 {
    font-size: 2.2rem;
  }
  .hero-ctas {
    flex-direction: column;
    gap: 0.8rem;
  }
  .trust-badges-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.8rem;
  }
  .products-grid {
    grid-template-columns: 1fr;
  }
  .industries-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  .clients-grid {
    grid-template-columns: 1fr;
  }
}

/* --- CONTROL SYSTEM CUSTOM DESIGN STYLES --- */
.product-card[data-category="control"] .product-badge {
  background-color: rgba(220, 38, 38, 0.1);
  color: #DC2626; /* Crimson Red for Control Systems */
}

/* Control Systems Layouts in Modals */
.control-modal-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  margin-top: 1.5rem;
  align-items: start;
}

@media (max-width: 992px) {
  .control-modal-container {
    grid-template-columns: 1fr;
  }
}

/* 7-Pillars Interactive Wheel Styles */
.wheel-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #f8fafc;
  border-radius: var(--border-radius-md);
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  position: relative;
}

.wheel-svg {
  width: 100%;
  max-width: 460px;
  height: auto;
  filter: drop-shadow(0 4px 6px rgba(0,0,0,0.08));
}

/* SVG Wheel Interactive States */
.wheel-segment {
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  stroke: #ffffff;
  stroke-width: 2px;
}

.wheel-segment:hover {
  filter: brightness(1.1);
  stroke-width: 3px;
  transform-origin: center;
}

.wheel-segment.active-segment {
  filter: brightness(1.25) saturate(1.2);
  stroke: var(--accent);
  stroke-width: 3.5px;
}

/* Label overlay */
.segment-label {
  font-family: var(--font-heading);
  font-size: 8px;
  font-weight: 700;
  fill: #ffffff;
  pointer-events: none;
  text-anchor: middle;
  dominant-baseline: middle;
  text-shadow: 0px 1px 2px rgba(0,0,0,0.8);
}

.segment-label-dark {
  fill: #1E293B;
  text-shadow: none;
  font-size: 8px;
}

.center-circle {
  cursor: pointer;
  transition: all 0.3s ease;
  stroke: #ffffff;
  stroke-width: 2px;
}

.center-circle:hover {
  filter: brightness(1.15);
}

.center-circle.active-segment {
  stroke: var(--accent);
  stroke-width: 3px;
}

.center-label {
  font-family: var(--font-heading);
  font-size: 9px;
  font-weight: 800;
  fill: #ffffff;
  pointer-events: none;
  text-anchor: middle;
  dominant-baseline: middle;
}

/* Wheel Detail Card */
.wheel-details-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border-left: 5px solid var(--primary);
  min-height: 350px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.wheel-details-card.highlight-flash {
  border-left-color: var(--accent);
  transform: translateX(3px);
}

.wheel-details-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--text-heading);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.wheel-details-subtitle {
  font-size: 0.95rem;
  color: var(--text-body);
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.wheel-details-bullets {
  list-style: none;
  padding: 0;
  margin: 0;
}

.wheel-details-bullets li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-body);
}

.wheel-details-bullets li::before {
  content: "✔";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 700;
}

/* iQ-F 3-Panel Card Grid Styles */
.iqf-grid-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 1.5rem;
}

@media (max-width: 768px) {
  .iqf-grid-container {
    grid-template-columns: 1fr;
  }
}

.iqf-card {
  background-color: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

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

.iqf-card-img-holder {
  height: 150px;
  background-color: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-color);
  padding: 0.5rem;
}

.iqf-card-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.iqf-card-info {
  padding: 1.25rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.iqf-card-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--text-heading);
  margin-bottom: 0.75rem;
  border-left: 3px solid var(--accent);
  padding-left: 0.5rem;
}

.iqf-card-desc {
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text-body);
}

/* DCS Detailed Modal Specs */
.dcs-specs-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.dcs-info-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .dcs-info-grid {
    grid-template-columns: 1fr;
  }
}

.dcs-features-block, .dcs-benefits-block {
  background-color: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 1.25rem;
}

.dcs-block-title {
  font-family: var(--font-heading);
  color: var(--text-heading);
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  border-bottom: 2px solid var(--primary-light);
  padding-bottom: 0.35rem;
}

.dcs-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.dcs-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
  line-height: 1.4;
  color: var(--text-body);
}

.dcs-list li::before {
  content: "✦";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 700;
}

/* --- FRONTEND SECURITY & ASSET PROTECTION --- */

/* 1. Disable text selection on branding, headers, and UI elements */
.logo, 
.nav-link, 
.footer-brand, 
.section-title, 
.product-title, 
.wheel-details-title, 
.modal-header h3 {
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

/* 2. Transparent Watermark Overlay on Product & Portfolio Images */
.product-img-holder,
.iqf-card-img-holder,
.dcs-info-grid img,
.modal-body .control-modal-container,
.modal-body img {
  position: relative;
  overflow: hidden;
}

.product-img-holder::after,
.iqf-card-img-holder::after {
  content: "IES BHARAT";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-30deg);
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: rgba(0, 0, 0, 0.05);
  font-weight: 700;
  letter-spacing: 3px;
  pointer-events: none;
  text-transform: uppercase;
  z-index: 5;
  text-shadow: none;
}