@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Inter:wght@400;500;600&display=swap');

:root {
  /* Brand Colors */
  --primary: #FFB800; /* Construction Yellow */
  --primary-hover: #E5A600;
  --secondary: #0F172A; /* Slate 900 */
  --secondary-light: #1E293B; /* Slate 800 */
  
  /* Neutral Colors */
  --bg-color: #F8FAFC;
  --text-dark: #0F172A;
  --text-light: #64748B;
  --white: #FFFFFF;
  --border: #E2E8F0;

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

  /* Transitions & Shadows */
  --transition: all 0.3s ease;
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-color);
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 700;
}

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

ul {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--secondary);
}

.section-subtitle {
  text-align: center;
  font-size: 1.125rem;
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto 3rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  border: none;
}

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

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

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

.btn-secondary:hover {
  background-color: var(--secondary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* --- Header --- */
.header {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

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

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo span {
  color: var(--primary);
}

.nav-menu {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-weight: 500;
  font-size: 1rem;
  color: var(--text-dark);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

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

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  padding-top: 80px;
  display: flex;
  align-items: center;
  position: relative;
  background-color: var(--secondary);
  color: var(--white);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
  z-index: 0;
}

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

.hero-content {
  max-width: 800px;
}

.hero-title {
  font-size: 4.5rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: var(--white);
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--primary);
  margin-bottom: 1.5rem;
  font-family: var(--font-heading);
}

.hero-desc {
  font-size: 1.125rem;
  margin-bottom: 2.5rem;
  opacity: 0.9;
  max-width: 600px;
}

.hero-features {
  display: flex;
  gap: 24px;
  margin-bottom: 2.5rem;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
  font-weight: 500;
}

.hero-feature i {
  color: var(--primary);
}

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-img-wrapper {
  position: relative;
}

.about-img {
  border-radius: 8px;
  box-shadow: var(--shadow-xl);
}

.about-badge {
  position: absolute;
  bottom: -30px;
  right: -30px;
  background-color: var(--primary);
  color: var(--secondary);
  padding: 30px;
  border-radius: 8px;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.about-badge h3 {
  font-size: 3rem;
  line-height: 1;
  margin-bottom: 8px;
}

.about-badge p {
  font-weight: 600;
  font-family: var(--font-heading);
}

.about-content h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: var(--secondary);
}

.about-content p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  font-size: 1.125rem;
}

.cert-box {
  background: var(--white);
  padding: 24px;
  border-radius: 8px;
  border-left: 4px solid var(--primary);
  box-shadow: var(--shadow-sm);
  margin-top: 2rem;
}

/* --- Services Preview --- */
.services-section {
  background-color: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.service-card {
  background-color: var(--bg-color);
  padding: 40px 30px;
  border-radius: 8px;
  transition: var(--transition);
  border: 1px solid var(--border);
}

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

.service-icon {
  width: 60px;
  height: 60px;
  background-color: rgba(255, 184, 0, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  border-radius: 8px;
  margin-bottom: 24px;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background-color: var(--primary);
  color: var(--secondary);
}

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--secondary);
}

.service-card p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

/* --- Features (Why Us) --- */
.features-section {
  background-color: var(--secondary);
  color: var(--white);
}

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

.features-section .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background-color: rgba(255, 255, 255, 0.05);
  padding: 24px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}

.feature-item:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-5px);
}

.feature-item i {
  color: var(--primary);
  font-size: 1.5rem;
  margin-top: 4px;
}

.feature-item h4 {
  font-size: 1.125rem;
  color: var(--white);
}

/* --- Process Section --- */
.process-section {
  background-color: var(--bg-color);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  position: relative;
}

.process-item {
  text-align: center;
  position: relative;
  z-index: 1;
}

.process-number {
  width: 80px;
  height: 80px;
  background-color: var(--white);
  border: 2px dashed var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-heading);
  color: var(--secondary);
  margin: 0 auto 1.5rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.process-item:hover .process-number {
  background-color: var(--primary);
  border-style: solid;
}

.process-item h4 {
  font-size: 1.25rem;
  color: var(--secondary);
}

/* --- CTA Section --- */
.cta-section {
  background: linear-gradient(rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.9)), url('../assets/hero_construction_1775479587665.png') center/cover;
  text-align: center;
  padding: 120px 0;
  color: var(--white);
}

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

.cta-content h2 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  color: var(--white);
}

.cta-content p {
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  color: rgba(255, 255, 255, 0.9);
}

.cta-contact-info {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 2.5rem;
}

.cta-contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 600;
  font-family: var(--font-heading);
}

.cta-contact-item i {
  color: var(--primary);
  font-size: 1.5rem;
}

/* --- Footer --- */
.footer {
  background-color: #0B1120;
  color: rgba(255, 255, 255, 0.7);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand .logo {
  color: var(--white);
  margin-bottom: 1.5rem;
}

.footer-desc {
  margin-bottom: 1.5rem;
  max-width: 400px;
}

.social-links {
  display: flex;
  gap: 16px;
}

.social-link {
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--white);
  transition: var(--transition);
}

.social-link:hover {
  background-color: var(--primary);
  color: var(--secondary);
}

.footer-title {
  color: var(--white);
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.footer-links li {
  margin-bottom: 12px;
}

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

.footer-bottom {
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.875rem;
}

/* --- Inner Pages Hero --- */
.page-hero {
  padding: 160px 0 80px;
  background-color: var(--secondary);
  color: var(--white);
  text-align: center;
}

.page-hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
}

/* --- Responsive --- */
@media (max-width: 992px) {
  .hero-title { font-size: 3.5rem; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-badge { right: 0; bottom: -20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-menu {
    position: absolute;
    top: 80px;
    left: -100%;
    width: 100%;
    background-color: var(--white);
    flex-direction: column;
    align-items: center;
    padding: 30px 0;
    gap: 20px;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .header .btn-primary {
    display: none;
  }
  
  .hero-title { font-size: 2.5rem; }
  .hero-features { flex-direction: column; gap: 12px; }
  .section { padding: 60px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-contact-info { flex-direction: column; gap: 16px; align-items: center; }
}