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

:root {
  --color-primary: #e87538;
  --color-secondary: #2d2d2d;
  --color-background: #fafafa;
  --color-foreground: #262626;
  --color-muted: #ebebeb;
  --color-border: #e0e0e0;
  --color-white: #ffffff;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--color-background);
  color: var(--color-foreground);
  line-height: 1.6;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Navbar */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

#navbar.scrolled {
  background-color: rgba(45, 45, 45, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.5px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--color-primary);
}

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

.hamburger {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--color-white);
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 25px;
  height: 2px;
  background-color: var(--color-white);
  left: 0;
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  bottom: -8px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

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

.btn-primary:hover {
  background-color: #d66829;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(232, 117, 56, 0.3);
}

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

.btn-secondary:hover {
  background-color: #1a1a1a;
  transform: translateY(-2px);
}

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

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

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-full {
  width: 100%;
}

.icon {
  width: 20px;
  height: 20px;
}

.icon-small {
  width: 16px;
  height: 16px;
}

/* Hero Section */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url('images/hero-excavator.jpeg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(45, 45, 45, 0.8), rgba(45, 45, 45, 0.7), rgba(45, 45, 45, 0.8));
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 0 1rem;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  line-height: 1.2;
  letter-spacing: 1px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

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

.about-content {
  max-width: 56rem;
  margin: 0 auto;
  text-align: center;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-text {
  font-size: 1.25rem;
  color: rgba(38, 38, 38, 0.8);
  line-height: 1.8;
}

/* Services Section */
.services {
  padding: 5rem 0;
  background-color: rgba(235, 235, 235, 0.3);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 4rem;
}

.service-card {
  background-color: var(--color-white);
  padding: 2rem;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
}

.service-card:hover {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transform: translateY(-4px);
}

.service-icon {
  width: 48px;
  height: 48px;
  color: var(--color-primary);
  margin-bottom: 1rem;
  transition: transform 0.3s ease;
}

.service-card:hover .service-icon {
  transform: scale(1.1);
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 0.75rem;
}

.service-description {
  color: rgba(38, 38, 38, 0.7);
  line-height: 1.6;
}

/* Gallery Section */
.gallery {
  padding: 5rem 0;
  background-color: var(--color-background);
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 4rem;
}

.gallery-item {
  height: 320px;
  background-size: cover;
  background-position: center;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.5s ease;
}

.gallery-item:hover {
  transform: scale(1.05);
}

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

.why-choose .section-title {
  color: var(--color-white);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 72rem;
  margin: 4rem auto 0;
}

.feature-item {
  text-align: center;
}

.feature-icon {
  width: 64px;
  height: 64px;
  color: var(--color-primary);
  margin: 0 auto 1rem;
}

.feature-text {
  font-size: 1.25rem;
  font-weight: 700;
}

/* CTA Section */
.cta {
  padding: 5rem 0;
  background-color: var(--color-primary);
  color: var(--color-white);
  text-align: center;
}

.cta-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
  text-transform: uppercase;
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

/* Contact Form Section */
.contact {
  padding: 5rem 0;
  background-color: rgba(235, 235, 235, 0.3);
}

.contact-form {
  max-width: 42rem;
  margin: 4rem auto 0;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-foreground);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 1rem;
  background-color: var(--color-white);
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-group textarea {
  resize: vertical;
  font-family: inherit;
}

/* Footer */
.footer {
  background-color: var(--color-secondary);
  color: var(--color-white);
  padding: 3rem 0;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.footer-heading {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-text {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-white);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-link:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* WhatsApp Float Button */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  background-color: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  transition: all 0.3s ease;
  z-index: 999;
}

.whatsapp-float:hover {
  background-color: #20BA5A;
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
  width: 32px;
  height: 32px;
  stroke: white;
}

/* Responsive Design */
@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
    justify-content: center;
  }

  .cta-buttons {
    flex-direction: row;
    justify-content: center;
  }
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.5rem;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-content {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 4rem;
  }

  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1280px) {
  .services-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 767px) {
  .nav-menu {
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background-color: rgba(45, 45, 45, 0.98);
    flex-direction: column;
    padding: 1rem;
    display: none;
  }

  .nav-menu.active {
    display: flex;
  }

  .mobile-menu-btn {
    display: block;
  }
}