:root {
  --primary-color: #0543a5;
  --primary-light: #3a7bd5;
  --secondary-color: #00d2ff;
  --text-color: #333333;
  --text-light: #666666;
  --bg-light: #f9fafe;
  --white: #ffffff;
  --border-radius: 12px;
  --shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 10px 30px rgba(5, 67, 165, 0.15);
  --transition: all 0.3s ease;
  --container-width: 1200px;
}

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

body {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--white);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

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

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.5rem 0;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  padding: 1rem 0;
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.logo h1 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary-color);
  line-height: 1;
}

.logo .highlight {
  color: var(--secondary-color);
}

.logo-subtitle {
  font-size: 0.8rem;
  color: var(--text-light);
  letter-spacing: 2px;
}

.nav-menu {
  display: flex;
  gap: 2.5rem;
}

.nav-link {
  font-weight: 500;
  color: var(--text-color);
  position: relative;
  padding-bottom: 5px;
}

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

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

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

.menu-toggle {
  display: none;
  font-size: 1.8rem;
  color: var(--primary-color);
  cursor: pointer;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.6;
}

.shape-1 {
  width: 500px;
  height: 500px;
  background: var(--primary-light);
  top: -100px;
  right: -100px;
  animation: float 8s ease-in-out infinite;
}

.shape-2 {
  width: 400px;
  height: 400px;
  background: var(--secondary-color);
  bottom: -50px;
  left: -100px;
  animation: float 6s ease-in-out infinite reverse;
}

@keyframes float {
  0% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(20px, -20px);
  }
  100% {
    transform: translate(0, 0);
  }
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 3.5rem;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  font-weight: 800;
}

.hero-subtitle {
  font-size: 2rem;
  color: var(--text-color);
  margin-bottom: 1.5rem;
  font-weight: 300;
}

.hero-description {
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 2.5rem;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.btn {
  padding: 0.8rem 2.5rem;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  box-shadow: 0 5px 15px rgba(5, 67, 165, 0.3);
}

.btn-primary:hover {
  background: transparent;
  color: var(--primary-color);
  transform: translateY(-3px);
}

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

.btn-secondary:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-3px);
}

/* Sections Common */
section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.title-underline {
  width: 60px;
  height: 4px;
  background: var(--secondary-color);
  margin: 0 auto 1rem;
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 2px;
}

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

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text h3 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

.about-text p {
  color: var(--text-light);
  margin-bottom: 1rem;
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

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

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-light);
}

.image-placeholder {
  width: 100%;
  height: 400px;
  background: #f0f7ff;
  border-radius: var(--border-radius);
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.image-placeholder i {
  font-size: 8rem;
  color: var(--primary-color);
  opacity: 0.2;
}

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

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

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

.service-icon {
  width: 70px;
  height: 70px;
  background: #f0f7ff;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 1.5rem;
  color: var(--primary-color);
  font-size: 2rem;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: var(--primary-color);
  color: white;
}

.service-title {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.service-description {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* Advantages Section */
.advantages {
  background: var(--white);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.advantage-item {
  text-align: center;
  padding: 2rem;
  border-radius: var(--border-radius);
  background: var(--bg-light);
  transition: var(--transition);
}

.advantage-item:hover {
  background: white;
  box-shadow: var(--shadow);
  transform: translateY(-5px);
}

.advantage-number {
  font-size: 3rem;
  font-weight: 800;
  color: rgba(5, 67, 165, 0.1);
  margin-bottom: 1rem;
  line-height: 1;
}

.advantage-item h3 {
  font-size: 1.2rem;
  margin-bottom: 0.8rem;
  color: var(--primary-color);
}

.advantage-item p {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* Contact Section */
.contact {
  background: var(--bg-light);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  background: white;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.contact-info {
  background: var(--primary-color);
  padding: 3rem;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2.5rem;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.info-icon {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.5rem;
}

.info-text h4 {
  font-size: 1.1rem;
  margin-bottom: 0.2rem;
  opacity: 0.9;
}

.info-text p {
  font-size: 0.95rem;
  opacity: 0.8;
}

.contact-form {
  padding: 3rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 1px solid #eee;
  border-radius: 8px;
  background: #f9f9f9;
  font-size: 1rem;
  transition: var(--transition);
  font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  background: white;
}

.btn-block {
  width: 100%;
}

/* Footer */
.footer {
  background: #032d6b;
  color: white;
  padding: 4rem 0 2rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 2rem;
  margin-bottom: 2rem;
}

.footer-logo h3 {
  font-size: 1.8rem;
  font-weight: 800;
}

.footer-logo p {
  opacity: 0.7;
  font-size: 0.9rem;
  letter-spacing: 2px;
}

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

/* Back to Top */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.2rem;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 900;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--primary-light);
  transform: translateY(-3px);
}

/* Responsive */
@media (max-width: 992px) {
  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
  }

  .contact-info {
    padding: 2rem;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .image-placeholder {
    height: 300px;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    height: 100vh;
    background: white;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
  }

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

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

  .hero-subtitle {
    font-size: 1.5rem;
  }

  .contact-info {
    flex-direction: column;
  }

  .footer-content {
    flex-direction: column;
    gap: 2rem;
    text-align: center;
  }

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