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

:root {
  /* Colors */
  --primary-color: #1a365d;
  --secondary-color: #2c5aa0;
  --accent-color: #3182ce;
  --text-dark: #1a202c;
  --text-light: #4a5568;
  --text-muted: #718096;
  --bg-light: #f7fafc;
  --bg-white: #ffffff;
  --border-color: #e2e8f0;
  --overlay-dark: rgba(26, 54, 93, 0.8);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI',
    sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;

  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;
  --spacing-32: 8rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
}

html {
  scroll-behavior: smooth;
}

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

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-6);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-4);
  }
}

/* Section Spacing */
.section {
  padding: var(--spacing-24) 0;
}

@media (max-width: 768px) {
  .section {
    padding: var(--spacing-16) 0;
  }
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-16);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-4);
}

.section-subtitle {
  font-size: var(--font-size-xl);
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .section-title {
    font-size: var(--font-size-3xl);
  }

  .section-subtitle {
    font-size: var(--font-size-lg);
  }
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: var(--transition-normal);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.nav-logo a {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition-fast);
}

.nav-logo a:hover {
  color: var(--accent-color);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-8);
}

.nav-link {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-color);
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  width: 30px;
  height: 24px;
  justify-content: space-between;
}

.bar {
  width: 100%;
  height: 3px;
  background: var(--primary-color);
  transition: var(--transition-fast);
}

@media (max-width: 768px) {
  .nav-container {
    padding: 0 var(--spacing-4);
  }

  .nav-logo a {
    font-size: var(--font-size-lg);
  }

  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background: var(--bg-white);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: var(--spacing-10);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-toggle {
    display: flex;
  }

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

  .nav-toggle.active .bar:nth-child(1) {
    transform: translateY(10.5px) rotate(45deg);
  }

  .nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-10.5px) rotate(-45deg);
  }
}

/* Hero Section */
.hero {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('assets/images/hero-background.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: scroll;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--overlay-dark);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: white;
  max-width: 800px;
  padding: 0 var(--spacing-6);
}

.hero-content .container {
  padding: 0;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  margin-bottom: var(--spacing-6);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-10);
  opacity: 0.9;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-4);
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .hero-background {
    background-attachment: scroll;
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-lg);
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-4) var(--spacing-8);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: var(--transition-normal);
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  min-width: 160px;
}

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

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

.btn-secondary {
  background: transparent;
  color: white;
  border-color: white;
}

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

/* Scroll Indicator */
.scroll-indicator {
  display: none;
  position: absolute;
  bottom: var(--spacing-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.scroll-arrow {
  width: 30px;
  height: 30px;
  border: 2px solid white;
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateX(-50%) rotate(45deg) translateY(0);
  }
  40% {
    transform: translateX(-50%) rotate(45deg) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) rotate(45deg) translateY(-5px);
  }
}

/* About Section */
.about {
  background: var(--bg-white);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-12);
  align-items: center;
}

.about-text h3 {
  font-size: var(--font-size-2xl);
  color: var(--primary-color);
  margin-bottom: var(--spacing-4);
  font-weight: 600;
}

.about-text p {
  font-size: var(--font-size-lg);
  color: var(--text-light);
  margin-bottom: var(--spacing-6);
  line-height: 1.7;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-6);
  margin-top: var(--spacing-8);
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: var(--spacing-1);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.about-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: var(--shadow-xl);
}

@media (max-width: 768px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
  }

  .about-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-4);
  }

  .about-image img {
    height: 300px;
  }
}

/* Services Section */
.services {
  background: var(--bg-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-6);
  justify-items: center;
}

@media (min-width: 768px) and (max-width: 1199px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .services-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--spacing-6);
    max-width: 1200px;
    margin: 0 auto;
  }

  .service-card {
    flex: 0 0 calc(33.333% - var(--spacing-4));
    max-width: calc(33.333% - var(--spacing-4));
  }

  .service-card:nth-child(4),
  .service-card:nth-child(5) {
    flex: 0 0 calc(50% - var(--spacing-3));
    max-width: calc(50% - var(--spacing-3));
    margin: 0;
  }
}

.service-card {
  background: var(--bg-white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.service-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.service-content {
  padding: var(--spacing-6);
}

.service-content h3 {
  font-size: var(--font-size-xl);
  color: var(--primary-color);
  margin-bottom: var(--spacing-3);
  font-weight: 600;
}

.service-content p {
  color: var(--text-light);
  margin-bottom: var(--spacing-4);
  line-height: 1.6;
}

.service-features {
  list-style: none;
}

.service-features li {
  color: var(--text-muted);
  padding: var(--spacing-1) 0;
  position: relative;
  padding-left: var(--spacing-5);
}

.service-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: bold;
}

@media (max-width: 768px) {
  .services-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
  }

  .service-card:nth-child(4),
  .service-card:nth-child(5) {
    margin: 0;
  }
}

/* Contact Section */
.contact.section {
  padding: var(--spacing-32) 0;
  min-height: 60vh;
}

@media (max-width: 768px) {
  .contact.section {
    padding: var(--spacing-24) 0;
    min-height: auto;
  }
}

.contact-content {
  display: flex;
  justify-content: center;
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-6);
  max-width: 950px;
}

.contact-card {
  display: flex;
  gap: var(--spacing-4);
  padding: var(--spacing-6);
  background: var(--bg-white);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition-fast);
}

.contact-card:hover {
  box-shadow: var(--shadow-md);
}

.contact-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--accent-color);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.contact-details h3 {
  font-size: var(--font-size-lg);
  color: var(--primary-color);
  margin-bottom: var(--spacing-2);
  font-weight: 600;
}

.contact-details p {
  color: var(--text-light);
  line-height: 1.5;
}

.contact-details a {
  color: var(--accent-color);
  text-decoration: none;
  transition: var(--transition-fast);
}

.contact-details a:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

@media (max-width: 768px) {
  .contact-info {
    grid-template-columns: 1fr;
  }

  .contact-card {
    padding: var(--spacing-4);
  }
}

/* Footer */
.footer {
  background: var(--primary-color);
  color: white;
  padding: var(--spacing-16) 0 var(--spacing-8) 0;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-12);
  margin-bottom: var(--spacing-8);
}

.footer-logo h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-2);
}

.footer-logo p {
  color: rgba(255, 255, 255, 0.8);
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-8);
}

.footer-section h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-4);
  color: white;
}

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

.footer-section li {
  margin-bottom: var(--spacing-2);
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--spacing-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-4);
}

.footer-legal {
  display: flex;
  gap: var(--spacing-4);
  align-items: center;
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition-fast);
}

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

.footer-legal span {
  color: rgba(255, 255, 255, 0.4);
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Loading States */
.loading {
  position: relative;
  overflow: hidden;
}

.loading::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  transform: translateX(-100%);
  animation: loading 1.5s infinite;
}

@keyframes loading {
  100% {
    transform: translateX(100%);
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* Focus Styles */
a:focus,
button:focus {
  outline: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .navbar,
  .scroll-indicator,
  .hero-cta {
    display: none;
  }

  .hero {
    height: auto;
    padding: var(--spacing-8) 0;
  }

  .hero-background {
    display: none;
  }

  .hero-content {
    color: var(--text-dark);
  }
}