/* Custom CSS Variables */
:root {
  --primary-color: #3b4a7a;
  --primary-dark: #2d3a5f;
  --secondary-color: #6c757d;
  --accent-color: #007bff;
  --text-dark: #2c3e50;
  --text-light: #6c757d;
  --bg-light: #f8f9fa;
  --white: #ffffff;
  --shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
}

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

body {
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--white);
}

/* Navigation Styles */
.navbar {
  padding: 1rem 0;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  padding: 0.5rem 0;
  background-color: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(10px);
}

.logo-container {
  display: flex;
  align-items: center;
}

.logo-circle {
  width: 40px;
  height: 40px;
  background-color: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.logo-circle i {
  color: var(--white);
  font-size: 8px;
  position: absolute;
}

.logo-circle i:first-child {
  left: 12px;
}

.logo-circle i:last-child {
  right: 12px;
}

.navbar-nav .nav-link {
  font-weight: 500;
  color: var(--text-dark) !important;
  margin: 0 0.5rem;
  transition: color 0.3s ease;
}

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

.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  font-weight: 600;
  transition: all 0.3s ease;
}

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

/* Hero Section */
.hero-section {
  padding: 10px 0 5px;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.2;
  margin-bottom: 2rem;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.hero-description p {
  margin-bottom: 1.5rem;
}

.hero-description strong {
  color: var(--text-dark);
  font-weight: 600;
}

.hero-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 1rem;
}

/* Services Section */
.services-section {
  padding: 80px 0;
  background-color: var(--bg-light);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 1rem;
}

.section-description {
  font-size: 1.2rem;
  color: var(--text-light);
}

.service-card {
  background: var(--white);
  padding: 2.5rem 2rem;
  border-radius: 1rem;
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid #e9ecef;
  box-shadow: var(--shadow);
}

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

.service-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

.service-icon i {
  font-size: 2rem;
  color: var(--white);
}

.service-card h4 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 1rem;
}

.service-card p {
  color: var(--text-light);
  font-size: 1rem;
  line-height: 1.6;
}

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

.footer-text {
  font-size: 0.9rem;
  opacity: 0.8;
}

.footer-links a {
  color: var(--white);
  text-decoration: none;
  font-size: 0.9rem;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.footer-links a:hover {
  opacity: 1;
}

.separator {
  margin: 0 1rem;
  opacity: 0.5;
}

/* Modal Styles */
.modal-content {
  border-radius: 1rem;
  border: none;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  border-bottom: 1px solid #e9ecef;
  padding: 1.5rem;
}

.modal-title {
  font-weight: 600;
  color: var(--text-dark);
}

.modal-body {
  padding: 1.5rem;
}

.form-label {
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.form-control, .form-select {
  border: 1px solid #dee2e6;
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(59, 74, 122, 0.25);
}

/* Responsive Design */
@media (max-width: 991.98px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-section {
    padding: 80px 0 40px;
  }
  
  .navbar-nav {
    text-align: center;
    margin-top: 1rem;
  }
  
  .navbar-nav .nav-link {
    margin: 0.5rem 0;
  }
}

@media (max-width: 767.98px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .service-card {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 575.98px) {
  .hero-title {
    font-size: 1.75rem;
  }
  
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

/* Animation Classes */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

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

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--white);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Success Message */
.alert-success {
  background-color: #d4edda;
  border-color: #c3e6cb;
  color: #155724;
  border-radius: 0.5rem;
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}