/* Base Styles & Variables */
:root {
  --primary-color: #FFA500; 
  --secondary-color: #003366; 
  --accent-color: #FFD700;
  --light-color: #f8f9fa;
  --dark-color: #212529;
  --text-color: #333;
  --text-light: #777;
  --white: #fff;
  --black: #000;
  --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
  --border-radius: 8px;
  --max-width: 1200px;
  --header-height: 80px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--light-color);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

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

ul {
  list-style: none;
}

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

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

.btn {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

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

.primary-btn:hover {
  background-color: transparent;
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-3px);
}

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

.secondary-btn:hover {
  background-color: var(--white);
  color: var(--primary-color);
  transform: translateY(-3px);
}

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

.outline-btn:hover {
  background-color: var(--primary-color);
  color: var(--white);
  transform: translateY(-3px);
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-size: 2.5rem;
  color: var(--secondary-color);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  width: 50%;
  height: 4px;
  background-color: var(--primary-color);
  bottom: -10px;
  left: 25%;
}

.section-divider {
  height: 1px;
  background-color: rgba(0, 0, 0, 0.1);
  margin: 1.5rem auto;
  max-width: 100px;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: var(--white);
  box-shadow: var(--box-shadow);
  z-index: 1000;
  transition: var(--transition);
}

.header.scrolled {
  height: 70px;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--secondary-color);
}

.logo p {
  margin: 0;
}

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

.nav-list {
  display: flex;
}

.nav-item {
  margin-left: 2rem;
  position: relative;
}

.nav-item a {
  font-weight: 600;
  color: var(--dark-color);
}

.nav-item.active a {
  color: var(--primary-color);
}

.nav-item::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  bottom: -5px;
  left: 0;
  transition: var(--transition);
}

.nav-item:hover::after {
  width: 100%;
}

.cta-button {
  margin-left: 2rem;
}

.mobile-menu-btn {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--dark-color);
}

/* Hero Section */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  margin-top: var(--header-height);
}

.hero-imag {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.hero-imag video,
.hero-imag img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 51, 102, 0.7);
}

.hero-content {
  position: relative;
  z-index: 1;
  color: var(--white);
  max-width: 800px;
  padding: 0 1.5rem;
}

.hero-title {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
}

/* About Section */
.about-section {
  padding: 5rem 0;
  background-color: var(--white);
}

.about-content {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.about-text {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.about-text p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.serving-area {
  font-weight: 600;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

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

.highlight-card {
  background-color: var(--light-color);
  padding: 2rem;
  border-radius: var(--border-radius);
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--box-shadow);
}

.highlight-card:hover {
  transform: translateY(-10px);
}

.highlight-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.highlight-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Services Section */
.services-section {
  padding: 5rem 0;
  background-color: var(--light-color);
}

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

.service-card {
  background-color: var(--white);
  padding: 2rem;
  border-radius: var(--border-radius);
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--box-shadow);
}

.service-card:hover {
  transform: translateY(-10px);
}

.service-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  display: inline-block;
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.service-card p {
  margin-bottom: 1.5rem;
}

.section-footer {
  text-align: center;
  margin-top: 3rem;
}

/* Why Choose Us Section */
.why-choose-us {
  padding: 5rem 0;
  background-color: var(--white);
}

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

.feature-item {
  text-align: center;
  padding: 2rem;
}

.feature-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.feature-item h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Testimonials Section */
.testimonials {
  padding: 5rem 0;
  background-color: var(--light-color);
}

.testimonial-slider {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.testimonial-slide {
  display: none;
  text-align: center;
  padding: 2rem;
}

.testimonial-slide.active {
  display: block;
  animation: fadeIn 1s ease;
}

.testimonial-content {
  background-color: var(--white);
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin-bottom: 1.5rem;
  position: relative;
}

.testimonial-content::before {
  content: '\201C';
  font-size: 5rem;
  color: var(--primary-color);
  opacity: 0.2;
  position: absolute;
  top: -1rem;
  left: 1rem;
}

.testimonial-content p {
  font-size: 1.1rem;
  font-style: italic;
  position: relative;
  z-index: 1;
}

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

.testimonial-author p {
  color: var(--text-light);
}

.testimonial-controls {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  padding: 0 1rem;
}

.testimonial-controls button {
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.testimonial-controls button:hover {
  background-color: var(--secondary-color);
}

/* Products Section */
.products-section {
  padding: 5rem 0;
  background-color: var(--white);
}

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

.product-card {
  background-color: var(--light-color);
  padding: 2rem;
  border-radius: var(--border-radius);
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--box-shadow);
}

.product-card:hover {
  transform: translateY(-10px);
}

.product-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.product-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.product-card p {
  margin-bottom: 1.5rem;
}

/* Projects Section */
.projects-section {
  padding: 5rem 0;
  background-color: var(--light-color);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.project-card {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  height: 300px;
}

.project-image {
  position: relative;
  width: 100%;
  height: 100%;
}

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

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 51, 102, 0.8);
  color: var(--white);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  opacity: 0;
  transition: var(--transition);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

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

.project-overlay h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  text-align: center;
}

.project-overlay p {
  margin-bottom: 1.5rem;
  text-align: center;
}

.project-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
  margin-bottom: 3rem;
}

.stat-item h3 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.stat-item p {
  font-size: 1.1rem;
  color: var(--text-color);
}

/* CTA Section */

.cta-section {
  padding: 5rem 0;
  background: linear-gradient(rgba(0, 51, 102, 0.8), rgba(0, 51, 102, 0.9)), url('/images/bsf-project.jpg') no-repeat center center/cover;
  color: var(--white);
  text-align: center;
}

.cta-content {
  max-width: 800px;
  margin: 0 auto;
}

.cta-title {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.cta-text {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* Footer */
.footer {
  background-color: var(--secondary-color);
  color: var(--white);
  padding: 5rem 0 0;
}

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

.footer-col h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  position: relative;
  padding-bottom: 1rem;
}

.footer-col h3::after {
  content: '';
  position: absolute;
  width: 50px;
  height: 2px;
  background-color: var(--primary-color);
  bottom: 0;
  left: 0;
}

.footer-logo {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--white);
}

.footer-logo img {
  max-width: 200px;
}

.footer p {
  margin-bottom: 1.5rem;
  opacity: 0.8;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--white);
  transition: var(--transition);
}

.social-links a:hover {
  background-color: var(--primary-color);
  color: var(--white);
}

.footer-col ul li {
  margin-bottom: 1rem;
}

.footer-col ul li i {
  margin-right: 0.5rem;
  color: var(--primary-color);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.5rem 0;
  text-align: center;
}

.copyright {
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.footer-links a {
  opacity: 0.8;
  transition: var(--transition);
}

.footer-links a:hover {
  opacity: 1;
  color: var(--primary-color);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { 
    opacity: 0;
    transform: translateY(50px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.animate-fade-in {
  animation: fadeIn 1s ease forwards;
}

.animate-fade-in-delay {
  animation: fadeIn 1s ease 0.5s forwards;
  opacity: 0;
}

.animate-slide-up {
  animation: slideUp 1s ease forwards;
  opacity: 0;
}

.animate-rotate {
  animation: rotate 10s linear infinite;
}

.animate-card {
  opacity: 0;
  transform: translateY(50px);
  animation: slideUp 1s ease forwards;
}

.animate-card:nth-child(1) {
  animation-delay: 0.2s;
}

.animate-card:nth-child(2) {
  animation-delay: 0.4s;
}

.animate-card:nth-child(3) {
  animation-delay: 0.6s;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .hero-title {
    font-size: 3rem;
  }
  
  .hero-subtitle {
    font-size: 1.3rem;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }
  
  .nav-list {
    position: fixed;
    top: var(--header-height);
    left: -100%;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: var(--white);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 999;
  }
  
  .nav-list.active {
    left: 0;
  }
  
  .nav-item {
    margin: 1rem 0;
  }
  
  .cta-button {
    display: none;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: 1rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-buttons {
    flex-direction: column;
    gap: 1rem;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .highlight-card, .service-card, .product-card {
    padding: 1.5rem;
  }
}