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

:root {
  --primary-color: #2563eb;
  --secondary-color: #1e40af;
  --accent-color: #4a7c43;
  --text-color: #333;
  --text-light: #666;
  --bg-color: #fff;
  --gray-light: #f5f5f5;
  --gray: #666;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
  --transition: all 0.3s ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background: var(--bg-color);
  scroll-behavior: smooth;
  padding-top: 70px;
}

/* Selection */
::selection {
  background: var(--primary-color);
  color: white;
}

/* Focus styles */
:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
.navbar {
  background: var(--bg-color);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo img {
  height: 40px;
  width: auto;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 30px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: color 0.3s;
}

/* Dropdown Menu */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-toggle {
  cursor: pointer;
  display: inline;
  color: var(--text-color);
  font-weight: 500;
  text-decoration: none;
  transition: color 0.3s;
}

.dropdown-menu {
  display: none;
}

/* Desktop dropdown - hover trigger */
@media (min-width: 769px) {
  .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 220px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    border-radius: 8px;
    padding: 10px 0;
    z-index: 1000;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
  }

  .dropdown:hover .dropdown-menu {
    display: block !important;
    opacity: 1 !important;
    transform: translateY(0) !important;
  }

  .dropdown:focus .dropdown-menu,
  .dropdown:focus-within .dropdown-menu {
    display: block !important;
    opacity: 1 !important;
    transform: translateY(0) !important;
  }
}

.dropdown-menu a {
  display: block;
  padding: 12px 20px;
  color: var(--text-color);
  text-decoration: none;
  transition: all 0.3s;
  border-left: 3px solid transparent;
  white-space: nowrap;
}

.dropdown-menu a:hover {
  background: #f5f5f5;
  border-left-color: var(--primary-color);
  padding-left: 25px;
}

.nav-links a:hover,
.nav-links a.active,
.dropdown:hover .dropdown-toggle {
  color: var(--primary-color);
}

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

/* Desktop dropdown - hover trigger */
@media (min-width: 769px) {
  .dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 220px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    border-radius: 8px;
    padding: 10px 0;
    z-index: 1000;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
  }

  .dropdown:hover .dropdown-menu {
    display: block !important;
    opacity: 1 !important;
    transform: translateY(0) !important;
  }

  .dropdown:focus .dropdown-menu,
  .dropdown:focus-within .dropdown-menu {
    display: block !important;
    opacity: 1 !important;
    transform: translateY(0) !important;
  }
}

/* Mobile Dropdown */
@media (max-width: 768px) {
  .dropdown-menu {
    position: static;
    box-shadow: none;
    border-radius: 0;
    padding-left: 20px;
    background: #f9f9f9;
    display: none;
  }

  .dropdown.active .dropdown-menu {
    display: block;
  }

  .dropdown-menu a {
    padding: 10px 15px;
    border-left: none;
    border-bottom: 1px solid #e5e7eb;
  }

  .dropdown-menu a:hover {
    padding-left: 20px;
    background: transparent;
  }
}

/* Hero Section */
.hero {
  position: relative;
  color: white;
  text-align: center;
  padding: 0;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), rgba(30, 64, 175, 0.4));
  z-index: 1;
}

.hero .container.hero-content {
  position: relative;
  z-index: 2;
  padding: 60px 20px;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 30px;
  opacity: 0.9;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: clamp(5px, 5vw, 50px);
  margin: clamp(20px, 4vw, 40px) 0;
  flex-wrap: nowrap;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.1;
}

.stat-label {
  font-size: clamp(0.75rem, 1.2vw, 1rem);
  opacity: 0.9;
  line-height: 1.1;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

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

.btn-secondary:hover {
  background: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

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

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

.btn-small {
  padding: 8px 20px;
  font-size: 0.9rem;
}

.btn-large {
  padding: 16px 40px;
  font-size: 1.1rem;
}

/* Features */
.features {
  padding: 80px 20px;
  background: var(--gray-light);
}

.features h2 {
  text-align: center;
  margin-bottom: 50px;
  font-size: 2rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.feature-card {
  background: white;
  padding: 30px;
  border-radius: 24px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  position: relative;
  overflow: hidden;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background-color: #f8fafc;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.feature-card > * {
  position: relative;
  z-index: 1;
}

.feature-card h3 {
  color: var(--primary-color);
  margin-bottom: 15px;
}

.feature-card p {
  color: #333;
}

.feature-card .btn-link {
  color: var(--primary-color);
  font-weight: 600;
}

.feature-card .btn-link:hover {
  color: var(--secondary-color);
}

.btn-image {
  display: inline-flex;
  margin-top: 15px;
  position: relative;
  width: auto;
  align-self: flex-start;
  align-items: center;
  justify-content: center;
}

.btn-image img {
  display: block;
  width: auto;
  height: 26px;
}

.btn-image .btn-text {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.feature-card .feature-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
  display: block;
}

.btn-link {
  display: inline-block;
  margin-top: 15px;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s;
}

.btn-link:hover {
  color: var(--secondary-color);
}

.about-preview {
  padding: 80px 20px;
  background: white;
  text-align: center;
}

.about-preview h2 {
  color: var(--primary-color);
  margin-bottom: 25px;
  font-size: 2rem;
}

.about-preview p {
  max-width: 900px;
  margin: 0 auto 30px;
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--gray);
}

/* Footer */
footer {
  background: var(--text-color);
  color: white;
  padding: 60px 20px 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  margin-bottom: 20px;
  color: white;
  font-size: 1.1rem;
}

.footer-section ul {
  list-style: none;
}

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

.footer-section a {
  color: #ccc;
  text-decoration: none;
  transition: color 0.3s;
}

.footer-section a:hover {
  color: white;
}

.footer-section p {
  color: #ccc;
  margin-bottom: 10px;
  line-height: 1.6;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid #444;
}

.footer-bottom p {
  margin: 5px 0;
  color: #999;
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
  }

  .mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-color);
    transition: var(--transition);
  }

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

  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 20px;
    gap: 15px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    animation: slideDown 0.3s ease;
  }

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

  .hero {
    min-height: 500px;
  }

  .hero .container.hero-content {
    padding: 30px 15px;
  }

  .hero h1 {
    font-size: 1.8rem;
    margin-bottom: 12px;
  }

  .hero p {
    font-size: 0.95rem;
    margin-bottom: 15px;
    line-height: 1.6;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* Animations */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Utility classes */
.fade-in {
  animation: fadeIn 0.6s ease;
}

.slide-up {
  animation: slideUp 0.6s ease;
}

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

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

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.py-1 { padding-top: 1rem; padding-bottom: 1rem; }
.py-2 { padding-top: 2rem; padding-bottom: 2rem; }
.py-3 { padding-top: 3rem; padding-bottom: 3rem; }

/* Card hover effects */
.card-hover {
  transition: var(--transition);
}

.card-hover:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

/* Loading state */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Print styles */
@media print {
  .navbar,
  .footer,
  .btn {
    display: none;
  }

  body {
    font-size: 12pt;
  }

  .content-section {
    page-break-inside: avoid;
  }
}