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

:root {
  /* Colors */
  --primary-color: #1F7AC4;
  /* Updated to match Label Blue */
  --dark-color: #0F172A;
  /* Keep dark for text contrast */
  --secondary-color: #00A3E0;
  --accent-color: #FF6B6B;
  --dark-bg: #0F172A;
  --light-bg: #F8FAFC;
  --white: #ffffff;
  --text-main: #334155;
  --text-light: #94A3B8;
  --border-color: #E2E8F0;

  /* Typography */
  --font-main: 'Inter', sans-serif;
  --h1-size: 3.5rem;
  --h2-size: 2.5rem;
  --h3-size: 1.75rem;
  --body-size: 1rem;

  /* Spacing & Layout */
  --container-width: 1200px;
  --header-height: 90px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --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);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease-in-out;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--light-bg);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

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

.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  text-align: center;
}

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

.btn-primary:hover {
  background-color: #155a8f;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background-color: #0087B9;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

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

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

.text-primary {
  color: var(--primary-color);
}

.text-secondary {
  color: var(--secondary-color);
}

/* Header */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--primary-color);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 1001;
}

.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.main-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 10px;
}

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

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

.nav-link:hover,
.nav-link.active {
  color: var(--secondary-color);
}

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

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

/* Hero Section */
.hero {
  margin-top: var(--header-height);
  height: calc(100vh - var(--header-height));
  min-height: 600px;
  background: linear-gradient(135deg, #0F172A 0%, #002B49 100%);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  color: var(--white);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background-image: url('https://images.unsplash.com/photo-1436491865332-7a61a109cc05?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80');
  /* Airplane/Tech Abstract */
  background-size: cover;
  background-position: center;
  opacity: 0.2;
  mask-image: linear-gradient(to right, transparent, black);
  -webkit-mask-image: linear-gradient(to right, transparent, black);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 600px;
}

.hero-title {
  font-size: var(--h1-size);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(to right, #fff, #94A3B8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-text {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 30px;
}

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

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

.section-header {
  margin-bottom: 50px;
  text-align: center;
}

.section-title {
  font-size: var(--h2-size);
  color: var(--primary-color);
  margin-bottom: 15px;
}

.section-subtitle {
  color: var(--secondary-color);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
}

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

.card {
  background: var(--white);
  padding: 30px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

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

.card-icon {
  font-size: 2.5rem;
  color: var(--secondary-color);
  margin-bottom: 20px;
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: var(--primary-color);
}

.card-text {
  color: var(--text-main);
  margin-bottom: 25px;
  flex-grow: 1;
}

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

.feature-item {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
  align-items: flex-start;
}

.feature-icon-box {
  background-color: var(--primary-color);
  color: var(--white);
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

/* Call to Action */
.cta-section {
  background: var(--primary-color);
  color: var(--white);
  padding: 60px 0;
  text-align: center;
}

.cta-title {
  color: var(--white);
  margin-bottom: 20px;
}

/* Footer */
.main-footer {
  background-color: #0B1120;
  color: var(--text-light);
  padding: 60px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 40px;
}

.footer-col h4 {
  color: var(--white);
  margin-bottom: 20px;
  font-size: 1.2rem;
}

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

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

.copyright {
  text-align: center;
  font-size: 0.9rem;
}

/* WhatsApp Float */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  left: 30px;
  background-color: #25D366;
  color: white;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  z-index: 2000;
  transition: transform var(--transition-fast);
}

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

/* Responsive */
@media (max-width: 768px) {
  :root {
    --h1-size: 2.5rem;
    --h2-size: 2rem;
  }

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

  .nav-container {
    position: relative;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    /* Full width below header in container context, or use fixed if preferred */
    background-color: var(--white);
    flex-direction: column;
    padding: 20px;
    gap: 15px;
    box-shadow: var(--shadow-lg);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    width: 250px;
    /* Dropdown width */
    margin-top: 25px;
    /* Adjust based on header height/alignment */
    margin-left: auto;
  }

  .main-header .container {
    padding-right: 0;
    /* Adjust if needed for full width menu */
    position: relative;
    /* Context for absolute menu */
  }

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

  .hero {
    text-align: center;
    justify-content: center;
  }

  .hero-content {
    margin: 0 auto;
  }

  .hero-buttons {
    justify-content: center;
  }
}