/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
  color: #1a1a1a;
}

h2 {
  font-size: 2rem;
  color: #2c3e50;
  text-align: center;
  margin-bottom: 2rem;
}

h3 {
  font-size: 1.5rem;
  color: #34495e;
}

p {
  margin-bottom: 1rem;
  color: #555;
}

/* Header */
.site-header {
  background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
  color: white;
  padding: 1rem 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: white;
  text-decoration: none;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  padding: 0.5rem 1rem;
  border-radius: 5px;
}

.nav a:hover {
  background-color: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.menu-btn {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

/* Main Content */
main {
  margin-top: 80px;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 4rem 0;
  text-align: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero h1 {
  color: white;
  font-size: 3rem;
  margin-bottom: 1.5rem;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero p {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 2rem;
}

.hero-image img {
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  transition: transform 0.3s ease;
}

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

/* Buttons */
.btn {
  display: inline-block;
  background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
  color: white;
  padding: 1rem 2rem;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);
}

/* Products Section */
.products {
  padding: 4rem 0;
  background: white;
}

/* Featured Products Section */
.featured-products {
  margin-bottom: 3rem;
  text-align: center;
}

.featured-title {
  color: var(--primary-color);
  margin-bottom: 2rem;
  font-size: 1.8rem;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.featured-item {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 2rem;
  border-radius: 15px;
  border: 2px solid var(--border-color);
  transition: all 0.3s ease;
  text-align: center;
}

.featured-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0,0,0,0.1);
  border-color: var(--secondary-color);
}

.featured-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.featured-image {
  margin-bottom: 1rem;
}

.featured-image img {
  transition: transform 0.3s ease;
}

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

.product-features {
  margin-top: 1rem;
  text-align: left;
}

.product-features ul {
  list-style: none;
  padding: 0;
}

.product-features li {
  padding: 0.3rem 0;
  color: var(--text-dark);
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.9rem;
}

.product-features li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success-color);
  font-weight: bold;
}

.featured-item h4 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.featured-item p {
  color: var(--text-dark);
  margin: 0;
  line-height: 1.6;
}

/* Complete Product Range */
.complete-range {
  margin-top: 3rem;
  padding: 2rem;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-radius: 15px;
  border: 1px solid var(--border-color);
}

.complete-range h3 {
  text-align: center;
  color: var(--primary-color);
  margin-bottom: 2rem;
  font-size: 1.8rem;
}

.range-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.range-category {
  background: white;
  padding: 1.5rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.range-category:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.range-category h4 {
  color: var(--accent-color);
  margin-bottom: 1rem;
  font-size: 1.2rem;
  text-align: center;
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: 0.5rem;
}

.range-category ul {
  list-style: none;
  padding: 0;
}

.range-category li {
  padding: 0.5rem 0;
  color: var(--text-dark);
  position: relative;
  padding-left: 1.5rem;
  border-bottom: 1px solid #f0f0f0;
}

.range-category li:last-child {
  border-bottom: none;
}

.range-category li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success-color);
  font-weight: bold;
}

.products .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.item {
  background: white;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
  border: 1px solid #e9ecef;
}

.item:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.item img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-bottom: 1px solid #e9ecef;
}

.item h3 {
  padding: 1.5rem 1.5rem 0.5rem;
  color: #2c3e50;
  font-size: 1.4rem;
}

.item p {
  padding: 0 1.5rem 1rem;
  color: #666;
  font-size: 0.95rem;
}

.product-details {
  padding: 0 1.5rem 1.5rem;
}

.product-details ul {
  list-style: none;
  padding: 0;
}

.product-details li {
  padding: 0.3rem 0;
  color: #555;
  position: relative;
  padding-left: 1.5rem;
}

.product-details li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #27ae60;
  font-weight: bold;
}

/* Services Section */
.services {
  padding: 4rem 0;
  background: #f8f9fa;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  border: 1px solid #e9ecef;
  text-align: center;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.card h3 {
  color: #2c3e50;
  margin-bottom: 1rem;
}

.card p {
  color: #666;
  line-height: 1.6;
}

/* About Section */
.about {
  padding: 4rem 0;
  background: white;
}

.about p {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3rem;
  font-size: 1.1rem;
  line-height: 1.8;
}

.about-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature {
  text-align: center;
  padding: 2rem;
  background: #f8f9fa;
  border-radius: 15px;
  border: 1px solid #e9ecef;
}

.feature h4 {
  color: #2c3e50;
  margin-bottom: 1rem;
}

.feature p {
  color: #666;
  margin: 0;
}

/* Contact Section */
.contact {
  padding: 4rem 0;
  background: #f8f9fa;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 3rem;
}

.contact-info h3 {
  color: #2c3e50;
  margin-bottom: 1rem;
}

.contact-info p {
  color: #666;
  margin-bottom: 2rem;
}

.contact-details {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  border: 1px solid #e9ecef;
}

.contact-item {
  padding: 0.5rem 0;
  color: #555;
}

.contact-form {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  border: 1px solid #e9ecef;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.form-row:last-child {
  grid-template-columns: 1fr auto;
  align-items: center;
}

input, textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid #e9ecef;
  border-radius: 10px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
  font-family: inherit;
}

input:focus, textarea:focus {
  outline: none;
  border-color: #3498db;
}

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

.status {
  color: #666;
  font-size: 0.9rem;
}

/* Footer */
.site-footer {
  background: #2c3e50;
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  color: #ecf0f1;
  margin-bottom: 1rem;
}

.footer-section a {
  color: #bdc3c7;
  text-decoration: none;
  display: block;
  padding: 0.3rem 0;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: #3498db;
}

.footer-section p {
  color: #bdc3c7;
  margin: 0.3rem 0;
}

.footer-bottom {
  border-top: 1px solid #34495e;
  padding-top: 2rem;
  text-align: center;
  color: #95a5a6;
}

/* Responsive Design */
@media (max-width: 768px) {
  .menu-btn {
    display: block;
  }
  
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #2c3e50;
    flex-direction: column;
    padding: 1rem;
    gap: 1rem;
  }
  
  .nav.active {
    display: flex;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .form-row:last-child {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .products .grid {
    grid-template-columns: 1fr;
  }
  
  .cards {
    grid-template-columns: 1fr;
  }
  
  .about-features {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .hero {
    padding: 3rem 0;
  }
  
  .products, .services, .about, .contact {
    padding: 3rem 0;
  }
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Loading animation for images */
.item img {
  transition: opacity 0.3s ease;
}

.item img:not([src]) {
  opacity: 0;
}

/* Enhanced hover effects */
.item:hover img {
  transform: scale(1.05);
  transition: transform 0.3s ease;
}

/* Professional color scheme adjustments */
:root {
  --primary-color: #2c3e50;
  --secondary-color: #3498db;
  --accent-color: #e74c3c;
  --success-color: #27ae60;
  --warning-color: #f39c12;
  --text-dark: #2c3e50;
  --text-light: #7f8c8d;
  --bg-light: #f8f9fa;
  --border-color: #e9ecef;
}

/* Certificates Section Styles */
.certificates {
  padding: 4rem 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.certificate-grid {
  display: grid;
  gap: 3rem;
  margin-top: 2rem;
}

.iso-certificate, .udyam-verification {
  background: white;
  border-radius: 15px;
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.iso-certificate:hover, .udyam-verification:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.certificate-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

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

.certificate-image img {
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  max-width: 100%;
  height: auto;
}

.certificate-details h4 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.certificate-details ul {
  list-style: none;
  margin-bottom: 1.5rem;
}

.certificate-details li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-dark);
}

.certificate-details li:last-child {
  border-bottom: none;
}

.certificate-details strong {
  color: var(--primary-color);
  font-weight: 600;
}

.certificate-note {
  background: linear-gradient(135deg, #e8f4fd 0%, #d1ecf1 100%);
  padding: 1rem;
  border-radius: 8px;
  border-left: 4px solid var(--secondary-color);
  font-style: italic;
  color: var(--text-dark);
}

/* Udyam Verification Styles */
.udyam-verification h3 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.qr-scanner-section {
  display: grid;
  gap: 2rem;
}

.udyam-info {
  text-align: center;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 1.5rem;
  border-radius: 10px;
  border: 2px solid var(--border-color);
}

.udyam-info h4 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.udyam-info p {
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.udyam-info strong {
  color: var(--accent-color);
  font-size: 1.1rem;
}

.udyam-details {
  background: white;
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  margin-top: 1rem;
}

.udyam-details p {
  margin-bottom: 0.5rem;
  padding: 0.25rem 0;
  border-bottom: 1px solid #f0f0f0;
}

.udyam-details p:last-child {
  border-bottom: none;
}

.udyam-details strong {
  color: var(--primary-color);
  font-weight: 600;
  min-width: 120px;
  display: inline-block;
}

.qr-code {
  text-align: center;
  padding: 1rem;
}

.qr-code img {
  border: 3px solid var(--border-color);
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.verification-tools {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.manual-verification, .qr-scanner {
  background: var(--bg-light);
  padding: 1.5rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.manual-verification h4, .qr-scanner h4 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  text-align: center;
}

.udyam-input {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  margin-bottom: 1rem;
  transition: border-color 0.3s ease;
}

.udyam-input:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.btn-secondary {
  background: var(--secondary-color);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 100%;
  margin-bottom: 1rem;
}

.btn-secondary:hover {
  background: #2980b9;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.qr-reader {
  width: 100%;
  height: 250px;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 1rem;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
}

.verification-result, .scanner-result {
  padding: 0.75rem;
  border-radius: 8px;
  margin-top: 1rem;
  font-weight: 500;
  text-align: center;
  min-height: 20px;
}

.verification-result.success, .scanner-result.success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.verification-result.error, .scanner-result.error {
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.verification-result.info, .scanner-result.info {
  background: #d1ecf1;
  color: #0c5460;
  border: 1px solid #bee5eb;
}

/* Responsive Design for Certificates */
@media (max-width: 768px) {
  .certificate-content {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .verification-tools {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .certificates {
    padding: 3rem 0;
  }
  
  .iso-certificate, .udyam-verification {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .certificates {
    padding: 2rem 0;
  }
  
  .iso-certificate, .udyam-verification {
    padding: 1rem;
  }
  
  .certificate-grid {
    gap: 2rem;
  }
}