/* ============================================================
   GEOGRADIX INFRA — Complete Stylesheet
   Construction & Infrastructure Company
   Color Scheme: Dark Navy + Green Accent
   ============================================================ */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ============================================================
   1. CSS Custom Properties (Design Tokens)
   ============================================================ */
:root {
  /* — Color Palette — */
  --navy:         #1B2638;
  --navy-light:   #243044;
  --navy-mid:     #2A3A52;
  --green:        #4CAF50;
  --green-dark:   #43A047;
  --green-light:  #E8F5E9;
  --green-number: #2E7D32;
  --white:        #FFFFFF;
  --off-white:    #F8FAFC;
  --gray-bg:      #F1F5F9;
  --gray-100:     #F5F7FA;
  --gray-200:     #E2E8F0;
  --gray-300:     #CBD5E1;
  --gray-400:     #94A3B8;
  --gray-500:     #64748B;
  --gray-600:     #475569;
  --gray-700:     #334155;
  --gray-800:     #1E293B;

  /* — Typography — */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* — Border Radius — */
  --radius-sm:   6px;
  --radius-md:   10px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-full: 9999px;

  /* — Shadows — */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);

  /* — Transitions — */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ============================================================
   2. Reset & Base Styles
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--gray-700);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul,
ol {
  list-style: none;
}

/* ============================================================
   3. Container
   ============================================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   4. Section Headers
   ============================================================ */
.section-subtitle {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--gray-800);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--gray-500);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ============================================================
   5. Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-family);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
}

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

.btn-primary:hover {
  background-color: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(76, 175, 80, 0.35);
}

.btn-outline {
  background-color: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-outline-dark {
  background-color: transparent;
  color: var(--gray-700);
  border: 2px solid var(--gray-300);
}

.btn-outline-dark:hover {
  background-color: var(--gray-100);
}

/* ============================================================
   6. Navbar
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  background: transparent;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(27, 38, 56, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 12px 0;
  box-shadow: var(--shadow-lg);
}

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

.nav-logo {
  display: flex;
  gap: 12px;
  align-items: center;
  color: var(--white);
}

.nav-logo-image {
  height: 56px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  transition: color var(--transition-base);
}

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

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

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

.nav-links a.active {
  color: var(--white);
}

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

.nav-cta {
  background-color: var(--green) !important;
  color: var(--white) !important;
  padding: 10px 24px !important;
  border-radius: var(--radius-md) !important;
  font-weight: 600 !important;
  transition: all var(--transition-base) !important;
}

.nav-cta:hover {
  background-color: var(--green-dark) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(76, 175, 80, 0.35) !important;
}

.nav-cta::after {
  display: none !important;
}

/* Nav Toggle (Mobile Hamburger) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  border: none;
  background: none;
  padding: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--white);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================================
   7. Hero Section
   ============================================================ */
.hero {
  background-color: var(--navy);
  padding: 140px 0 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(76, 175, 80, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

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

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

/* Hero Badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: rgba(76, 175, 80, 0.15);
  border: 1px solid rgba(76, 175, 80, 0.3);
  color: var(--green);
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-badge::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--green);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.5);
  }
}

/* Hero Title */
.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-title span {
  color: var(--green);
}

/* Hero Description */
.hero-desc {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 520px;
}

/* Hero Buttons */
.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

/* Hero Stats */
.hero-stats {
  display: flex;
  gap: 40px;
}

.hero-stat {
  position: relative;
}

.hero-stat::after {
  content: '';
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.15);
}

.hero-stat:last-child::after {
  display: none;
}

.hero-stat-value {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 2px;
}

.hero-stat-label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
}

/* Hero Visual */
.hero-visual {
  position: relative;
}

.hero-image-card {
  background-color: var(--navy-light);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  position: relative;
}

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

.hero-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 100%);
}

.hero-image-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--white);
}

.hero-image-caption {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
}

.hero-diamond {
  position: absolute;
  top: -16px;
  right: -16px;
  width: 48px;
  height: 48px;
  background-color: rgba(76, 175, 80, 0.15);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

/* ============================================================
   8. Trust Section
   ============================================================ */
.trust {
  padding: 100px 0;
  background-color: var(--white);
}

.trust .section-header {
  text-align: center;
  margin-bottom: 60px;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.trust-card {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.trust-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

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

.trust-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.trust-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--green);
  margin-bottom: 16px;
}

.trust-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 10px;
}

.trust-card-desc {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ============================================================
   9. Services Section
   ============================================================ */
.services {
  padding: 100px 0;
  background-color: var(--gray-100);
}

.services .section-header {
  text-align: center;
  margin-bottom: 60px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition-base);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-photo {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}


.service-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 10px;
}

.service-card-desc {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.7;
}



/* ============================================================
   11. Industries Section
   ============================================================ */
.industries {
  padding: 100px 0;
  background-color: var(--white);
}

.industries .section-header {
  text-align: center;
  margin-bottom: 60px;
}

.industries-carousel {
  position: relative;
  overflow: hidden;
}

.industries-track {
  display: flex;
  gap: 24px;
  transition: transform 0.5s ease;
}

.industry-card {
  flex: 0 0 calc(33.333% - 16px);
  max-width: calc(33.333% - 16px);
  height: 380px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
}

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

.industry-card:hover .industry-card-bg {
  transform: scale(1.05);
}

.industry-card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(27, 38, 56, 0.1) 0%,
    rgba(27, 38, 56, 0.9) 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px;
  color: var(--white);
  transition: padding-bottom 0.4s ease;
}

.industry-card:hover .industry-card-overlay {
  padding-bottom: 40px;
}

.industry-card-number {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--green);
  margin-bottom: 8px;
}

.industry-card-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--white);
}

.industry-card-desc {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.5;
}

/* Carousel Controls */
.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
}

.carousel-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--gray-300);
  background-color: var(--white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-600);
  transition: all var(--transition-base);
}

.carousel-btn:hover {
  background-color: var(--green);
  border-color: var(--green);
  color: var(--white);
}

.carousel-indicator {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-500);
}

.carousel-indicator span {
  color: var(--gray-800);
}

/* ============================================================
   11. About Us Section
   ============================================================ */
.about {
  padding: 100px 0;
  background: var(--white);
}

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

.about-features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.05rem;
  color: var(--navy);
  font-weight: 500;
}

.about-features li svg {
  width: 24px;
  height: 24px;
  color: var(--green);
  flex-shrink: 0;
}

.about-visual {
  position: relative;
  border-radius: var(--radius-lg);
}

.about-image {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.about-badge {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--green);
  color: var(--white);
  padding: 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.about-badge-number {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 4px;
}

.about-badge-text {
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.2;
}

/* ============================================================
   11.5. Contact Section
   ============================================================ */
.contact {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--navy) 0%, #1a3a5c 50%, #2a4a7f 100%);
  color: var(--white);
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: flex-start;
}

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

.contact .section-desc {
  color: rgba(255,255,255,0.7);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
  transition: color var(--transition-base);
}

.contact-link:hover {
  color: var(--green);
}

.contact-link svg {
  width: 24px;
  height: 24px;
  color: var(--green);
}

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

.form-group {
  margin-bottom: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: 1rem;
  color: var(--gray-800);
  background: var(--gray-50);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--green);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

.form-submit {
  width: 100%;
  font-size: 1.05rem;
}

/* ============================================================
   12. Footer
   ============================================================ */
.footer {
  background-color: #111B27;
  padding: 60px 0 30px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-logo-image {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.footer-brand-desc {
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.5);
}

.footer-heading {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.55);
  transition: color var(--transition-base);
}

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

.footer-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-info p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.55);
  transition: color var(--transition-base);
}

.footer-info p:hover {
  color: var(--green);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copyright {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
}

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

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.4);
  transition: all var(--transition-base);
}

.footer-social a:hover {
  background-color: var(--green);
  border-color: var(--green);
  color: var(--white);
}

/* ============================================================
   13. Scroll Animations
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }
.fade-in-delay-5 { transition-delay: 0.5s; }
.fade-in-delay-6 { transition-delay: 0.6s; }

/* ============================================================
   14. Responsive Design
   ============================================================ */

/* — Tablet / Small Desktop — */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-title {
    font-size: 2.5rem;
  }

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

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

  .industry-card {
    flex: 0 0 calc(50% - 12px);
    max-width: calc(50% - 12px);
  }

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

  .about-container,
  .contact-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-visual {
    order: -1;
  }
}

/* — Mobile — */
@media (max-width: 768px) {
  /* Mobile Navigation */
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(27, 38, 56, 0.98);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    z-index: 999;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 1.3rem;
  }

  .nav-toggle {
    display: flex;
    z-index: 1001;
  }

  /* Hero Mobile */
  .hero {
    padding: 120px 0 60px;
    min-height: auto;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }

  .hero-stat::after {
    display: none;
  }

  /* Section Title */
  .section-title {
    font-size: 2rem;
  }

  /* Trust Grid */
  .trust-grid {
    grid-template-columns: 1fr;
  }

  /* Services Grid */
  .services-grid {
    grid-template-columns: 1fr;
  }

  /* Industry Card */
  .industry-card {
    flex: 0 0 100%;
    max-width: 100%;
  }

  /* Contact Mobile */
  .contact-container {
    padding: 0 16px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  /* Footer Mobile */
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
}