:root {
  /* Color Palette */
  --primary-color: #0A2540;
  --primary-light: #1A3A5A;
  --accent-color: #D4AF37; /* Gold */
  --accent-hover: #F2C94C;
  --secondary-color: #C0C0C0; /* Silver */
  --text-dark: #1F2937;
  --text-light: #6B7280;
  --bg-white: #FFFFFF;
  --bg-light: #F9FAFB;
  --bg-dark: #111827;

  /* Typography */
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 80px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-gold: 0 4px 14px 0 rgba(212, 175, 55, 0.39);

  /* Transitions */
  --transition: all 0.3s ease;
}

/* Reset & Basics */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-body);
}

body {
  color: var(--text-dark);
  background-color: var(--bg-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

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

ul {
  list-style: none;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section-padding {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 15px;
  position: relative;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto 50px;
  font-size: 1.1rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: 4px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  font-family: var(--font-body);
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background-color: var(--accent-color);
  color: var(--bg-white);
  box-shadow: var(--shadow-gold);
}

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

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

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

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: transparent;
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 37, 64, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--bg-white);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.logo-icon {
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, var(--secondary-color), var(--bg-white));
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a {
  color: var(--bg-white);
  font-weight: 500;
  position: relative;
}

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

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

.hamburger {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--bg-white);
  font-size: 1.5rem;
}

/* Hero Section */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  background: url('assets/hero-bg.jpg') center/cover no-repeat;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(10, 37, 64, 0.9) 0%, rgba(10, 37, 64, 0.4) 100%);
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 800px;
  color: var(--bg-white);
}

.hero h1 {
  font-size: 3.5rem;
  color: var(--bg-white);
  margin-bottom: 20px;
  animation: fadeUp 1s ease forwards;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 40px;
  opacity: 0.9;
  animation: fadeUp 1s ease 0.2s forwards;
  opacity: 0;
}

.hero-btns {
  display: flex;
  gap: 20px;
  animation: fadeUp 1s ease 0.4s forwards;
  opacity: 0;
}

/* Floating Stats */
.floating-stats {
  position: absolute;
  right: 10%;
  bottom: 20%;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 20px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  gap: 30px;
  z-index: 10;
  animation: float 6s ease-in-out infinite;
}

.stat-item {
  text-align: center;
  color: var(--bg-white);
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  font-family: var(--font-heading);
  color: var(--accent-color);
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Introduction Section */
.intro {
  background-color: var(--bg-light);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.intro-text h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.intro-text p {
  color: var(--text-light);
  margin-bottom: 30px;
}

.intro-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.feature {
  display: flex;
  align-items: center;
  gap: 15px;
}

.feature-icon {
  width: 40px;
  height: 40px;
  background-color: rgba(10, 37, 64, 0.1);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 1.2rem;
}

.intro-image {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.intro-image img {
  width: 100%;
  height: auto;
  transition: transform 0.5s ease;
}

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

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.service-card {
  background: var(--bg-white);
  padding: 40px 30px;
  border-radius: 10px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  text-align: center;
  border: 1px solid rgba(0,0,0,0.05);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent-color);
  transform: scaleX(0);
  transition: var(--transition);
  transform-origin: left;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

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

.service-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  color: var(--accent-color);
}

.service-card h3 {
  margin-bottom: 15px;
  font-size: 1.3rem;
}

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

/* Elevator Types */
.elevator-types {
  background-color: var(--bg-light);
}

.types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.type-card {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  height: 300px;
}

.type-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.type-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 30px 20px;
  background: linear-gradient(to top, rgba(10,37,64, 0.9), transparent);
  color: var(--bg-white);
  transition: var(--transition);
}

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

.type-overlay h3 {
  color: var(--bg-white);
  margin-bottom: 5px;
}

/* Why Choose Us */
.why-us {
  background-color: var(--primary-color);
  color: var(--bg-white);
}

.why-us .section-title, .why-us .section-subtitle {
  color: var(--bg-white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  text-align: center;
}

.stat-box .number {
  font-size: 3.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 10px;
}

.stat-box p {
  font-size: 1.1rem;
  opacity: 0.9;
}

/* Projects Showcase */
.projects-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 20px;
}

.project-item {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  height: 250px;
}

.project-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-info {
  position: absolute;
  inset: 0;
  background: rgba(10, 37, 64, 0.8);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: var(--transition);
  color: var(--bg-white);
  text-align: center;
  padding: 20px;
}

.project-item:hover .project-info {
  opacity: 1;
}

.project-info h3 {
  color: var(--bg-white);
  margin-bottom: 10px;
  transform: translateY(20px);
  transition: var(--transition);
}

.project-info p {
  transform: translateY(20px);
  transition: var(--transition);
  transition-delay: 0.1s;
}

.project-item:hover .project-info h3,
.project-item:hover .project-info p {
  transform: translateY(0);
}

/* Testimonials */
.testimonials {
  background-color: var(--bg-light);
}

.testimonial-container {
  display: flex;
  overflow-x: auto;
  gap: 30px;
  padding-bottom: 20px;
  scrollbar-width: none;
}

.testimonial-container::-webkit-scrollbar {
  display: none;
}

.testimonial-card {
  min-width: 350px;
  background: var(--bg-white);
  padding: 40px;
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.quote-icon {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 3rem;
  color: rgba(212, 175, 55, 0.2);
}

.stars {
  color: var(--accent-color);
  margin-bottom: 15px;
}

.testimonial-text {
  font-style: italic;
  color: var(--text-light);
  margin-bottom: 20px;
}

.client-info {
  display: flex;
  align-items: center;
  gap: 15px;
}

.client-img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.client-name {
  font-weight: 600;
  color: var(--primary-color);
}

.client-role {
  font-size: 0.85rem;
  color: var(--text-light);
}

/* FAQ */
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid #E5E7EB;
  padding: 20px 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  color: var(--primary-color);
  font-size: 1.1rem;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  color: var(--text-light);
  margin-top: 0;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  margin-top: 15px;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-icon {
  transition: var(--transition);
  font-size: 1.5rem;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: var(--bg-white);
  text-align: center;
  padding: 100px 0;
}

.cta-section h2 {
  color: var(--bg-white);
  font-size: 3rem;
  margin-bottom: 20px;
}

.cta-section p {
  font-size: 1.2rem;
  margin-bottom: 40px;
  opacity: 0.9;
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 50px;
}

.contact-info {
  background: var(--primary-color);
  color: var(--bg-white);
  padding: 40px;
  border-radius: 10px;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 30px;
}

.info-item i {
  color: var(--accent-color);
  font-size: 1.5rem;
  margin-top: 5px;
}

.info-item h4 {
  color: var(--bg-white);
  margin-bottom: 5px;
}

.info-item p {
  opacity: 0.8;
  font-size: 0.95rem;
}

.contact-form {
  background: var(--bg-white);
  padding: 40px;
  border-radius: 10px;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 20px;
}

.form-control {
  width: 100%;
  padding: 15px;
  border: 1px solid #D1D5DB;
  border-radius: 4px;
  font-family: var(--font-body);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

textarea.form-control {
  height: 150px;
  resize: vertical;
}

/* Footer */
footer {
  background: var(--bg-dark);
  color: var(--bg-white);
  padding: 80px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 50px;
}

.footer-col h3 {
  color: var(--bg-white);
  margin-bottom: 25px;
  font-size: 1.2rem;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h3::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 2px;
  background: var(--accent-color);
}

.footer-col p {
  color: #9CA3AF;
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 15px;
}

.footer-links a {
  color: #9CA3AF;
}

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

.social-links {
  display: flex;
  gap: 15px;
}

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

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

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #9CA3AF;
  font-size: 0.9rem;
}

/* Floating WhatsApp */
.floating-whatsapp {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background-color: #25D366;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 35px;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  animation: pulse 2s infinite;
  transition: var(--transition);
}

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

/* Animations */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0); }
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5); }
  70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Scroll Animation Classes */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 992px) {
  .hero h1 { font-size: 2.8rem; }
  .intro-grid, .contact-grid { grid-template-columns: 1fr; }
  .floating-stats { display: none; }
}

@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background: var(--primary-color);
    flex-direction: column;
    padding: 20px;
    gap: 20px;
    text-align: center;
    transform: translateY(-150%);
    opacity: 0;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
  }
  
  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
  }
  
  .hamburger { display: block; }
  .hero h1 { font-size: 2.2rem; }
  .section-title { font-size: 2rem; }
  .cta-section h2 { font-size: 2.2rem; }
}