:root {
  --primary-color: #2A3B4C;
  --secondary-color: #4A90E2;
  --accent-color: #61DAFB;
  --text-color: #333333;
  --background-color: #FFFFFF;
  --spacing-unit: 1rem;
}

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

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

/* Header & Navigation */
header {
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 5%;
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
}

.nav-links a {
  margin-left: 2rem;
  text-decoration: none;
  color: var(--text-color);
  transition: color 0.3s ease;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--secondary-color);
}

.cta-button {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
  color: white !important;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: none;
  cursor: pointer;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5rem 5%;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  text-align: center;
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  font-size: 3.5rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--primary-color);
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: #4a5568;
}

/* Section Styles */
section {
  padding: 5rem 5%;
}

section h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  text-align: center;
  color: var(--primary-color);
}

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

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.service-card {
  padding: 2rem;
  border-radius: 15px;
  background: white;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  text-align: center;
}

.service-card:hover {
  transform: translateY(-5px);
}

.service-card i {
  font-size: 2.5rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

/* Workflow Section */
.workflow {
  background-color: #f8fafc;
}

.workflow-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.workflow-step {
  text-align: center;
  padding: 2rem;
}

.workflow-step .step-number {
  width: 40px;
  height: 40px;
  background: var(--secondary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-weight: bold;
}

/* About Section */
.about {
  background: linear-gradient(135deg, var(--primary-color), #1a2633);
  color: white;
}

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

.about h2 {
  color: white;
}

.about p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

/* Timeline Section */
.timeline {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 0;
}

.timeline::after {
  content: '';
  position: absolute;
  width: 2px;
  background: var(--secondary-color);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -1px;
}

.timeline-item {
  padding: 1rem 2rem;
  position: relative;
  width: 50%;
  margin-bottom: 2rem;
}

.timeline-item::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  background: var(--secondary-color);
  border-radius: 50%;
  top: 50%;
  right: -10px;
}

.timeline-item:nth-child(even) {
  left: 50%;
}

.timeline-item:nth-child(even)::after {
  left: -10px;
}

/* Principles Section */
.principles {
  background-color: #f8fafc;
}

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

.principle-card {
  padding: 2rem;
  text-align: center;
  background: white;
  border-radius: 10px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.principle-card i {
  font-size: 2rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

/* Testimonials Section */
.testimonials {
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.testimonial-card img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin-bottom: 1rem;
}

/* Pricing Section */
.pricing {
  background-color: white;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.pricing-card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-5px);
}

.pricing-card h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.price {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--secondary-color);
  margin-bottom: 2rem;
}

.features-list {
  list-style: none;
  margin-bottom: 2rem;
}

.features-list li {
  margin-bottom: 0.8rem;
  color: #4a5568;
}

/* FAQ Section */
.faq {
  background-color: #f8fafc;
}

.faq-item {
  background: white;
  border-radius: 10px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.faq-question {
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

/* Trust Section */
.trust {
  text-align: center;
  background: white;
}

.trust-logos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
  align-items: center;
  margin-top: 3rem;
}

/* Newsletter Section */
.newsletter {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  text-align: center;
  padding: 4rem 5%;
}

.newsletter h2 {
  color: white;
}

.newsletter-form {
  max-width: 500px;
  margin: 2rem auto 0;
}

.newsletter-form input {
  width: 100%;
  padding: 1rem;
  border: none;
  border-radius: 25px;
  margin-bottom: 1rem;
}

/* Contact Form */
.contact {
  padding: 5rem 5%;
  background-color: #f5f7fa;
}

.form-group {
  position: relative;
  margin-bottom: 2rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid #ddd;
  border-radius: 5px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-group label {
  position: absolute;
  left: 1rem;
  top: 1rem;
  transition: all 0.3s ease;
  pointer-events: none;
  color: #666;
}

.form-group input:focus ~ label,
.form-group textarea:focus ~ label,
.form-group input:valid ~ label,
.form-group textarea:valid ~ label {
  top: -0.5rem;
  left: 0.5rem;
  font-size: 0.8rem;
  background: white;
  padding: 0 0.5rem;
  color: var(--secondary-color);
}

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

/* Footer */
footer {
  background-color: var(--primary-color);
  color: white;
  padding: 4rem 5% 2rem;
}

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

.footer-section h4 {
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.footer-section a {
  color: white;
  text-decoration: none;
  display: block;
  margin-bottom: 0.5rem;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: var(--accent-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.mobile-menu-btn span {
  width: 100%;
  height: 3px;
  background-color: var(--primary-color);
  transition: all 0.3s ease;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: white;
    padding: 1rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    flex-direction: column;
    align-items: flex-start;
  }

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

  .nav-links a {
    margin: 0.5rem 0;
  }

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

  .mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }

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

  .mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }

  .hero {
    padding-top: 120px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .timeline::after {
    left: 31px;
  }

  .timeline-item {
    width: 100%;
    padding-left: 70px;
    padding-right: 25px;
  }

  .timeline-item::after {
    left: 21px;
  }

  .timeline-item:nth-child(even) {
    left: 0;
  }
}