:root {
  --primary: #004aad;
  --primary-dark: #003080;
  --secondary: #3b82f6;
  --accent: #f59e0b;
  --bg-color: #ffffff;
  --bg-light: #f8fafc;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --white: #ffffff;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Cairo', sans-serif;
  color: var(--text-main);
  background-color: var(--bg-color);
  line-height: 1.7;
  overflow-x: hidden;
}

/* Utilities */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.text-center { text-align: center; }
.text-white { color: var(--white); }
.bg-light { background-color: var(--bg-light); }
.bg-accent { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }
.mb-4 { margin-bottom: 1.5rem; }

.section {
  padding: 80px 0;
  position: relative;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--primary);
  position: relative;
  display: inline-block;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-weight: 700;
  border-radius: var(--radius);
  transition: all 0.3s ease;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
}

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

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

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

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

.btn-block {
  width: 100%;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: all 0.3s ease;
  padding: 20px 0;
}

.navbar.scrolled {
  background-color: var(--glass-bg);
  backdrop-filter: blur(10px);
  padding: 15px 0;
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--glass-border);
}

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

.nav-logo {
  height: 100px;
  width: auto;
  transition: transform 0.3s ease;
  display: block;
}

.nav-logo:hover {
  transform: scale(1.05);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--white);
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
}

.navbar.scrolled .nav-links a {
  color: var(--text-main);
}

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

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
}

.mobile-menu-btn span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--white);
  margin: 5px 0;
  transition: 0.3s;
}

.navbar.scrolled .mobile-menu-btn span {
  background-color: var(--primary);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-bg .overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.7));
}

.hero-content {
  color: var(--white);
  max-width: 800px;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero-title span {
  display: block;
  color: var(--secondary);
}

.hero-subtitle {
  font-size: 1.2rem;
  margin-bottom: 40px;
  opacity: 0.9;
  font-weight: 300;
}

.hero-buttons {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

/* About Short */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.image-stack {
  position: relative;
  height: 400px;
}

.img-front {
  position: absolute;
  width: 70%;
  height: auto;
  bottom: 0;
  right: 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 2;
  border: 5px solid var(--white);
}

.img-back {
  position: absolute;
  width: 70%;
  height: auto;
  top: 0;
  left: 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  z-index: 1;
}

/* Specifications Grid */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.spec-card {
  background: var(--white);
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border: 1px solid var(--border);
}

.spec-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.spec-icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
  display: inline-block;
}

.spec-card h3 {
  color: var(--primary);
  margin-bottom: 15px;
  font-size: 1.3rem;
}

.spec-list {
  list-style: none;
}

.spec-list li {
  position: relative;
  padding-right: 25px;
  margin-bottom: 10px;
  color: var(--text-muted);
}

.spec-list li::before {
  content: "✓";
  position: absolute;
  right: 0;
  color: var(--secondary);
  font-weight: bold;
}

.metal-text {
  font-size: 0.95rem;
  line-height: 1.6;
}

.tags-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.tag {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--primary);
  padding: 8px 16px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.3s;
}

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

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  height: 250px;
  cursor: pointer;
}

.gallery-item img,
.gallery-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  display: flex;
  align-items: flex-end;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.gallery-item:hover img,
.gallery-item:hover video {
  transform: scale(1.1);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay span {
  color: var(--white);
  font-weight: 700;
  font-size: 1.2rem;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-overlay span {
  transform: translateY(0);
}

/* Form Styles */
.quote-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.glass-panel {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
}

.glass-panel-light {
  background: var(--white);
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

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

.custom-form .form-group.half {
  flex: 1;
}

.custom-form .form-row {
  display: flex;
  gap: 20px;
  flex-direction: row;
}

.custom-form label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: inherit;
}

.glass-panel label {
  color: var(--white);
}

.custom-form input,
.custom-form select,
.custom-form textarea {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  transition: all 0.3s ease;
  background-color: rgba(255, 255, 255, 0.9);
}

.glass-panel-light input,
.glass-panel-light select,
.glass-panel-light textarea {
  background-color: var(--bg-light);
  border-color: var(--border);
}

.custom-form input:focus,
.custom-form select:focus,
.custom-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

.contact-highlights .highlight-item {
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: 10px;
  font-weight: 600;
}

/* About Detailed */
.about-detailed {
  background: url('../images/image2.png.jpg') center/cover fixed;
  position: relative;
  color: var(--white);
}

.about-detailed::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 74, 173, 0.9);
}

.about-detailed .container {
  position: relative;
  z-index: 1;
}

.about-detailed .section-title {
  color: var(--white);
}

.about-detailed .lead {
  font-size: 1.3rem;
  margin-bottom: 20px;
}

.about-features {
  list-style: none;
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  align-items: center;
}

.about-features li {
  background: rgba(255, 255, 255, 0.1);
  padding: 15px 30px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.2);
  width: 100%;
  max-width: 500px;
  transition: transform 0.3s;
}

.about-features li:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.2);
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 40px;
}

.contact-card {
  background: var(--white);
  padding: 20px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.contact-card .icon {
  font-size: 2rem;
  margin-bottom: 10px;
}

.contact-card h4 {
  color: var(--primary);
  margin-bottom: 5px;
}

.phone-number {
  font-size: 1.2rem;
  color: var(--text-main);
}

/* Footer */
.footer {
  background-color: var(--primary-dark);
  color: var(--white);
  padding: 60px 0 20px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 900px) {
  .about-grid, .quote-wrapper, .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .image-stack {
    margin-top: 40px;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 250px;
    height: 100vh;
    background-color: var(--primary);
    flex-direction: column;
    padding: 80px 30px;
    transition: 0.3s;
    box-shadow: var(--shadow-lg);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .mobile-menu-btn {
    display: block;
    z-index: 1001;
  }
  
  .mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }
  
  .custom-form .form-row {
    flex-direction: column;
    gap: 0;
  }
}

/* Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 40px;
  left: 40px;
  background-color: #25d366;
  color: #FFF;
  border-radius: 50px;
  box-shadow: 2px 2px 15px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.whatsapp-float:hover {
  background-color: #128c7e;
  transform: scale(1.1);
  box-shadow: 2px 2px 20px rgba(0, 0, 0, 0.3);
  color: #fff;
}

@media (max-width: 768px) {
  .whatsapp-float {
    width: 50px;
    height: 50px;
    bottom: 20px;
    left: 20px;
  }
  
  .whatsapp-float svg {
    width: 28px;
    height: 28px;
  }
}