/* Base Styles */
:root {
  --primary-color: #06b6d4;
  --secondary-color: #0284c7;
  --accent-color: #f59e0b;
  --dark-color: #0f172a;
  --light-color: #f1f5f9;
  --gray-color: #64748b;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --border-radius: 10px;
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.7;
  color: var(--dark-color);
  background-color: var(--light-color);
}

a {
  text-decoration: none;
  color: var(--primary-color);
  transition: var(--transition);
}

ul {
  list-style: none;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--dark-color);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
  color: var(--dark-color);
  margin-bottom: 2rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1.5rem;
}

/* Buttons */
.primary-btn, .secondary-btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

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

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

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

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

.primary-btn.large {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

/* Header */
header {
  background-color: white;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 1rem 0;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.site-logo span {
  margin-left: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark-color);
}

.logo {
  flex-shrink: 0;
}

/* Navigation */
nav {
  display: flex;
  align-items: center;
}

.main-nav {
  display: flex;
  gap: 2rem;
}

.main-nav li a {
  color: var(--dark-color);
  font-weight: 500;
  position: relative;
}

.main-nav li a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

.main-nav li a:hover {
  color: var(--primary-color);
}

.main-nav li a:hover::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  height: 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 10;
}

.menu-toggle span {
  display: block;
  width: 30px;
  height: 3px;
  background-color: var(--dark-color);
  border-radius: 3px;
  transition: var(--transition);
}

/* Hero Section */
.hero-section {
  background: linear-gradient(120deg, #0891b2 0%, #0284c7 100%);
  padding: 7rem 0;
  color: white;
  text-align: center;
}

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

.hero-content h1 {
  color: white;
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  opacity: 0.9;
}

/* Features Section */
.features-section {
  padding: 5rem 0;
  background-color: white;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

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

.feature-item {
  background: #f8fafc;
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.feature-item:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  margin-bottom: 1.5rem;
}

/* Technology Section */
.technology-section {
  background-color: #f8fafc;
  padding: 5rem 0;
}

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

.tech-text p {
  margin-bottom: 1.5rem;
}

.tech-text .secondary-btn {
  margin-top: 1rem;
}

/* FAQ Section */
.faq-section {
  padding: 5rem 0;
  background-color: white;
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: 1rem;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background-color: #f8fafc;
}

.faq-question {
  padding: 1.25rem;
  cursor: pointer;
  position: relative;
  font-weight: 600;
  transition: var(--transition);
}

.faq-question::after {
  content: '+';
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  transition: var(--transition);
}

.faq-item.active .faq-question::after {
  content: '-';
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.25rem 1.25rem;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(120deg, #0891b2 0%, #0284c7 100%);
  color: white;
  padding: 5rem 0;
  text-align: center;
}

.cta-content {
  max-width: 700px;
  margin: 0 auto;
}

.cta-content h2 {
  color: white;
  margin-bottom: 1rem;
}

.cta-content p {
  margin-bottom: 2rem;
  opacity: 0.9;
}

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

.cta-content .primary-btn:hover {
  background-color: var(--light-color);
  color: var(--secondary-color);
}

/* Footer */
footer {
  background-color: var(--dark-color);
  color: white;
  padding: 4rem 0 1.5rem;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: 3rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
}

.footer-logo span {
  margin-left: 0.5rem;
  font-size: 1.2rem;
  font-weight: 600;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
}

.footer-column h4 {
  color: var(--primary-color);
  margin-bottom: 1.25rem;
  font-size: 1.1rem;
}

.footer-column ul li {
  margin-bottom: 0.75rem;
}

.footer-column ul li a {
  color: #cbd5e1;
}

.footer-column ul li a:hover {
  color: white;
}

.copyright {
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #94a3b8;
  font-size: 0.9rem;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background: white;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    gap: 2.5rem;
  }
  
  .main-nav.active {
    right: 0;
  }
  
  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 9px);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -9px);
  }
  
  .hero-content h1 {
    font-size: 2.2rem;
  }
  
  .footer-content {
    flex-direction: column;
  }
  
  .footer-links {
    margin-top: 2rem;
    gap: 2rem;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.8rem;
  }
  
  h2 {
    font-size: 1.6rem;
  }
  
  .hero-section {
    padding: 5rem 0;
  }
  
  .features-section,
  .technology-section,
  .faq-section,
  .cta-section {
    padding: 3rem 0;
  }
  
  .feature-item {
    padding: 1.5rem;
  }
}