/* ============================================
   KM ENGINEERING - Design System & Styles
   Designer: Website Designer Agent
   ============================================ */

/* === CSS Variables (Design Tokens) === */
:root {
  /* Primary Colors */
  --primary: #1a3a5c;
  --primary-dark: #0f2440;
  --primary-light: #2a5a8c;

  /* Accent Colors */
  --accent: #e8792b;
  --accent-dark: #c5621e;
  --accent-light: #f09955;

  /* Neutral Colors */
  --white: #ffffff;
  --gray-50: #f8f9fa;
  --gray-100: #f1f3f5;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #868e96;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;
  --black: #000000;

  /* Functional Colors */
  --success: #28a745;
  --info: #17a2b8;
  --warning: #ffc107;
  --danger: #dc3545;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Poppins', 'Inter', sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.15);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Container */
  --container-max: 1280px;
  --container-narrow: 960px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-primary);
  color: var(--gray-800);
  line-height: 1.6;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

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

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--space-md);
  color: var(--gray-700);
}

/* === Container === */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container-narrow {
  max-width: var(--container-narrow);
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(232, 121, 43, 0.3);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232, 121, 43, 0.4);
}

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

.btn-secondary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

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

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

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

.btn-outline-dark:hover {
  background: var(--primary);
  color: var(--white);
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: 1.05rem;
}

.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
}

/* === Section Styling === */
.section {
  padding: var(--space-4xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header .subtitle {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.section-header h2 {
  margin-bottom: var(--space-md);
}

.section-header p {
  max-width: 640px;
  margin: 0 auto;
  color: var(--gray-600);
  font-size: 1.05rem;
}

.section-gray {
  background: var(--gray-50);
}

/* === Top Bar === */
.top-bar {
  background: var(--primary-dark);
  color: var(--white);
  padding: 0.5rem 0;
  font-size: 0.85rem;
}

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

.top-bar-left {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.top-bar a {
  color: var(--gray-300);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.top-bar a:hover {
  color: var(--white);
}

.top-bar .social-links {
  display: flex;
  gap: var(--space-sm);
}

.top-bar .social-links a {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1);
  font-size: 0.75rem;
}

.top-bar .social-links a:hover {
  background: var(--accent);
}

/* === Header / Navbar === */
.header {
  background: var(--white);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.logo svg {
  width: 48px;
  height: 48px;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-text .company-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.logo-text .company-tagline {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--gray-500);
  font-weight: 500;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-menu a {
  padding: 0.5rem 1rem;
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--gray-700);
  position: relative;
  transition: color var(--transition-fast);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 1rem;
  right: 1rem;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

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

.nav-menu a:hover::after,
.nav-menu a.active::after {
  transform: scaleX(1);
}

.nav-cta {
  margin-left: var(--space-lg);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--gray-800);
  border-radius: 2px;
  transition: all var(--transition-base);
}

/* === Hero Section === */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-content {
  color: var(--white);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  margin-bottom: var(--space-xl);
  border: 1px solid rgba(255,255,255,0.15);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero h1 {
  color: var(--white);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  margin-bottom: var(--space-lg);
  line-height: 1.1;
}

.hero h1 span {
  color: var(--accent);
}

.hero-description {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: var(--space-2xl);
  max-width: 520px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

.hero-stats {
  display: flex;
  gap: var(--space-3xl);
}

.hero-stat {
  text-align: left;
}

.hero-stat .number {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}

.hero-stat .label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

.hero-visual {
  position: relative;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.hero-image-wrapper img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.hero-float-card {
  position: absolute;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  animation: float 6s ease-in-out infinite;
}

.hero-float-card.card-1 {
  bottom: -20px;
  left: -30px;
}

.hero-float-card.card-2 {
  top: -20px;
  right: -20px;
  animation-delay: -3s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.float-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.float-icon.green { background: #e6f9ee; color: var(--success); }
.float-icon.blue { background: #e6f0ff; color: var(--primary); }

.float-text .float-number {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--gray-900);
}

.float-text .float-label {
  font-size: 0.75rem;
  color: var(--gray-500);
}

/* === Services / What We Do === */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  font-size: 1.75rem;
  color: var(--white);
}

.service-card h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.2rem;
}

.service-card p {
  font-size: 0.92rem;
  color: var(--gray-600);
  margin-bottom: var(--space-md);
}

.service-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.service-link:hover {
  gap: 10px;
}

/* === Product Showcase === */
.products-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-600);
  background: var(--gray-100);
  transition: all var(--transition-fast);
}

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

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.product-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
  position: relative;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.product-image {
  position: relative;
  height: 240px;
  overflow: hidden;
  background: var(--gray-100);
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.product-badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  background: var(--accent);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-actions {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  opacity: 0;
  transform: translateX(10px);
  transition: all var(--transition-base);
}

.product-card:hover .product-actions {
  opacity: 1;
  transform: translateX(0);
}

.product-action-btn {
  width: 36px;
  height: 36px;
  background: var(--white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  font-size: 0.85rem;
  color: var(--gray-700);
  transition: all var(--transition-fast);
}

.product-action-btn:hover {
  background: var(--primary);
  color: var(--white);
}

.product-info {
  padding: var(--space-lg);
}

.product-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.product-info h3 {
  font-size: 1.05rem;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.product-info p {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-bottom: var(--space-md);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.product-specs {
  display: flex;
  gap: var(--space-md);
}

.product-spec {
  font-size: 0.8rem;
  color: var(--gray-500);
  display: flex;
  align-items: center;
  gap: 4px;
}

.enquiry-btn {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all var(--transition-fast);
}

.enquiry-btn:hover {
  color: var(--accent-dark);
  gap: 8px;
}

/* === About / Why Choose Us === */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.about-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  border-radius: var(--radius-xl);
}

.about-experience {
  position: absolute;
  bottom: var(--space-xl);
  left: var(--space-xl);
  background: var(--accent);
  color: var(--white);
  padding: var(--space-lg) var(--space-xl);
  border-radius: var(--radius-lg);
}

.about-experience .exp-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
}

.about-experience .exp-text {
  font-size: 0.85rem;
  opacity: 0.9;
}

.about-content .subtitle {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.about-content h2 {
  margin-bottom: var(--space-lg);
}

.about-content > p {
  font-size: 1.05rem;
  margin-bottom: var(--space-xl);
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.about-feature {
  display: flex;
  gap: var(--space-md);
}

.about-feature-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius-md);
  background: rgba(232, 121, 43, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.15rem;
}

.about-feature h4 {
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.about-feature p {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-bottom: 0;
}

/* === Stats / Counter === */
.stats-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: var(--space-3xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

.stat-item {
  color: var(--white);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat-number span {
  color: var(--accent);
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.7;
}

/* === Testimonials === */
.testimonials-slider {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl);
  box-shadow: var(--shadow-md);
  position: relative;
}

.testimonial-card::before {
  content: '\201C';
  font-family: Georgia, serif;
  font-size: 5rem;
  color: var(--accent);
  opacity: 0.2;
  position: absolute;
  top: 10px;
  left: 30px;
  line-height: 1;
}

.testimonial-text {
  font-size: 1.1rem;
  color: var(--gray-700);
  font-style: italic;
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}

.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
}

.testimonial-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1.2rem;
}

.testimonial-info h4 {
  font-size: 1rem;
  margin-bottom: 2px;
}

.testimonial-info p {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-bottom: 0;
}

.testimonial-stars {
  color: var(--warning);
  font-size: 1rem;
  margin-bottom: var(--space-md);
  letter-spacing: 2px;
}

/* === CTA Section === */
.cta-section {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  padding: var(--space-4xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
  top: -200px;
  right: -100px;
}

.cta-section::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
  bottom: -150px;
  left: -50px;
}

.cta-section .container {
  position: relative;
  z-index: 2;
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: var(--space-md);
}

.cta-section p {
  color: rgba(255,255,255,0.9);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto var(--space-xl);
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}

.cta-section .btn-white {
  background: var(--white);
  color: var(--accent);
  font-weight: 700;
}

.cta-section .btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* === Clients / Partners === */
.clients-section {
  padding: var(--space-3xl) 0;
  background: var(--gray-50);
}

.clients-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.clients-header p {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray-500);
  font-weight: 500;
}

.clients-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-3xl);
  flex-wrap: wrap;
  opacity: 0.5;
}

.client-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-600);
  transition: opacity var(--transition-base);
}

.client-logo:hover {
  opacity: 1;
}

/* === Footer === */
.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding-top: var(--space-4xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-3xl);
  padding-bottom: var(--space-3xl);
}

.footer-brand .logo-text .company-name {
  color: var(--white);
}

.footer-brand .logo-text .company-tagline {
  color: var(--gray-500);
}

.footer-brand p {
  color: var(--gray-500);
  font-size: 0.9rem;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.footer-social {
  display: flex;
  gap: var(--space-sm);
}

.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-500);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--accent);
  color: var(--white);
}

.footer-col h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: var(--space-lg);
  position: relative;
  padding-bottom: var(--space-sm);
}

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

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  color: var(--gray-500);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  font-size: 0.9rem;
}

.footer-contact .icon {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: var(--radius-md);
  background: rgba(232, 121, 43, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: var(--space-lg) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-bottom-links a {
  color: var(--gray-500);
}

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

/* === Whatsapp Float === */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.75rem;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: all var(--transition-base);
  animation: whatsappPulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
}

@keyframes whatsappPulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6); }
}

/* === Back to Top === */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 90px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.1rem;
  box-shadow: var(--shadow-md);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

/* === Page Banner === */
.page-banner {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: var(--space-4xl) 0 var(--space-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
}

.page-banner .container {
  position: relative;
  z-index: 2;
}

.page-banner h1 {
  color: var(--white);
  margin-bottom: var(--space-md);
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
}

.breadcrumb a {
  color: rgba(255,255,255,0.6);
}

.breadcrumb a:hover {
  color: var(--white);
}

.breadcrumb .separator {
  color: rgba(255,255,255,0.3);
}

/* === Contact Form === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-3xl);
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  gap: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
}

.contact-card:hover {
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.contact-card-icon {
  width: 56px;
  height: 56px;
  min-width: 56px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--white);
}

.contact-card h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.contact-card p {
  font-size: 0.9rem;
  color: var(--gray-600);
  margin-bottom: 0;
}

.contact-form-wrapper {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-md);
}

.contact-form-wrapper h3 {
  margin-bottom: var(--space-xl);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--gray-800);
  transition: border-color var(--transition-fast);
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 58, 92, 0.08);
}

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

/* === Products Page === */
.products-filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.filter-search {
  position: relative;
  flex: 1;
  max-width: 400px;
}

.filter-search input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-full);
  font-size: 0.95rem;
}

.filter-search input:focus {
  outline: none;
  border-color: var(--primary);
}

.filter-search .search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-400);
}

.filter-categories {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* === About Page specific === */
.timeline {
  position: relative;
  padding: var(--space-2xl) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gray-200);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  margin-bottom: var(--space-2xl);
  position: relative;
}

.timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
}

.timeline-content {
  width: 45%;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
}

.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 3px var(--accent);
  z-index: 1;
}

.timeline-year {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--accent);
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
}

.value-card {
  text-align: center;
  padding: var(--space-2xl);
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.value-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-lg);
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(232,121,43,0.1), rgba(232,121,43,0.05));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--accent);
}

/* === Certifications === */
.certs-grid {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

.cert-item {
  text-align: center;
  padding: var(--space-xl);
  background: var(--white);
  border-radius: var(--radius-lg);
  width: 180px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
}

.cert-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  color: var(--primary);
}

.cert-item h4 {
  font-size: 0.9rem;
}

/* === Map === */
.map-container {
  height: 400px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-top: var(--space-3xl);
  box-shadow: var(--shadow-md);
  background: var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--gray-500);
}

/* === Responsive === */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-description {
    margin: 0 auto var(--space-2xl);
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
  }
}

@media (max-width: 768px) {
  .top-bar {
    display: none;
  }

  .header .container {
    height: 70px;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    flex-direction: column;
    padding: var(--space-xl);
    gap: 0;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-xl);
  }

  .nav-menu.open {
    transform: translateX(0);
  }

  .nav-menu a {
    padding: var(--space-md) 0;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--gray-100);
    width: 100%;
  }

  .nav-menu a::after {
    display: none;
  }

  .nav-cta {
    margin-left: 0;
    margin-top: var(--space-md);
    width: 100%;
    text-align: center;
  }

  .mobile-toggle {
    display: flex;
  }

  .hero {
    min-height: 80vh;
    padding: var(--space-3xl) 0;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-lg);
    align-items: center;
  }

  .about-features {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item,
  .timeline-item:nth-child(odd) {
    flex-direction: row;
    padding-left: 50px;
  }

  .timeline-content {
    width: 100%;
  }

  .timeline-dot {
    left: 20px;
  }

  .products-filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-search {
    max-width: 100%;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 640px) {
  .products-grid {
    grid-template-columns: 1fr;
  }

  .products-filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-search {
    max-width: 100%;
  }

  .filter-categories {
    justify-content: flex-start;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
  }

  .filter-categories .tab-btn {
    white-space: nowrap;
    flex-shrink: 0;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .cta-buttons .btn {
    width: 100%;
  }

  .product-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .section {
    padding: var(--space-3xl) 0;
  }

  .hero {
    min-height: auto;
    padding: var(--space-3xl) 0 var(--space-2xl);
    overflow: hidden;
  }

  .hero h1 {
    font-size: 1.85rem;
    word-break: break-word;
  }

  .hero-description {
    font-size: 0.95rem;
  }

  .hero-badge {
    font-size: 0.75rem;
  }

  .hero-stats {
    gap: var(--space-md);
  }

  .hero-stat .number {
    font-size: 1.5rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .page-banner {
    padding: var(--space-2xl) 0 var(--space-xl);
  }

  .page-banner h1 {
    font-size: 1.85rem;
  }

  .section-header h2 {
    font-size: 1.6rem;
  }

  .cta-section h2 {
    font-size: 1.6rem;
  }

  .btn {
    padding: 0.7rem 1.25rem;
    font-size: 0.9rem;
  }

  .btn-lg {
    padding: 0.9rem 1.5rem;
    font-size: 0.95rem;
  }

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

  .logo .logo-text .company-tagline {
    display: none;
  }

  .product-image {
    height: 200px;
  }

  .testimonial-card {
    padding: var(--space-lg);
  }
}

/* === Animations on scroll === */
/* Elements are visible by default. JS adds .js-animate to <html> to enable animations. */
.js-animate .fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.fade-up.visible,
.js-animate .fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.js-animate .fade-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: all 0.6s ease;
}

.fade-left.visible,
.js-animate .fade-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.js-animate .fade-right {
  opacity: 0;
  transform: translateX(30px);
  transition: all 0.6s ease;
}

.fade-right.visible,
.js-animate .fade-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger children */
.js-animate .stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease;
}

.stagger-children.visible > *:nth-child(1),
.js-animate .stagger-children.visible > *:nth-child(1) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(2),
.js-animate .stagger-children.visible > *:nth-child(2) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(3),
.js-animate .stagger-children.visible > *:nth-child(3) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(4),
.js-animate .stagger-children.visible > *:nth-child(4) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(5),
.js-animate .stagger-children.visible > *:nth-child(5) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(6),
.js-animate .stagger-children.visible > *:nth-child(6) { transition-delay: 0.6s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(7),
.js-animate .stagger-children.visible > *:nth-child(7) { transition-delay: 0.7s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(8),
.js-animate .stagger-children.visible > *:nth-child(8) { transition-delay: 0.8s; opacity: 1; transform: translateY(0); }