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

:root {
  --primary: #0891b2;
  --primary-dark: #0e7490;
  --secondary: #f0fdfa;
  --text-dark: #0f172a;
  --text-light: #64748b;
  --text-muted: #94a3b8;
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --border: #e2e8f0;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-white);
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
}

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

/* Header */
.header {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
}

.logo span {
  color: var(--text-dark);
}

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  color: var(--text-light);
  font-weight: 500;
  transition: color 0.2s;
}

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

/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}

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

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

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

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

.btn-large {
  padding: 16px 32px;
  font-size: 18px;
  border-radius: 50px;
}

/* Hero Section */
.hero {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--bg-white) 100%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-white);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 24px;
  border: 1px solid var(--border);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero h1 {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--text-dark);
}

.hero h1 .highlight {
  background: linear-gradient(90deg, var(--primary) 0%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 20px;
  color: var(--text-light);
  margin-bottom: 32px;
  max-width: 500px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-muted);
}

.hero-image {
  position: relative;
}

.hero-image img {
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
}

.hero-image::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 20px;
  right: -20px;
  bottom: -20px;
  background: var(--border);
  border-radius: 16px;
  z-index: -1;
}

/* Features */
.features {
  padding: 100px 0;
  background: var(--bg-white);
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 60px;
}

.section-header h2 {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-dark);
}

.section-header p {
  font-size: 18px;
  color: var(--text-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--bg-light);
  padding: 32px;
  border-radius: 16px;
  border: 1px solid var(--border);
  transition: all 0.3s;
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-white);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 24px;
  box-shadow: var(--shadow);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.feature-card p {
  color: var(--text-light);
  font-size: 15px;
}

/* Content Section */
.content-section {
  padding: 100px 0;
  background: var(--bg-light);
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.content-text h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 24px;
}

.content-text p {
  color: var(--text-light);
  margin-bottom: 20px;
  font-size: 17px;
}

.content-text h3 {
  font-size: 24px;
  font-weight: 600;
  margin: 32px 0 16px;
  color: var(--text-dark);
}

.content-text ul {
  list-style: disc;
  padding-left: 24px;
}

.content-text li {
  color: var(--text-light);
  margin-bottom: 8px;
  font-size: 16px;
}

/* CTA Section */
.cta {
  padding: 80px 0;
  background: var(--primary);
  text-align: center;
}

.cta h2 {
  font-size: 44px;
  font-weight: 700;
  color: white;
  margin-bottom: 20px;
}

.cta p {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin: 0 auto 32px;
}

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

.cta .btn:hover {
  background: var(--secondary);
  transform: translateY(-2px);
}

/* Footer */
.footer {
  padding: 48px 0;
  background: var(--text-dark);
  color: white;
}

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

.footer-logo {
  font-size: 20px;
  font-weight: 700;
}

.footer-logo span {
  color: var(--primary);
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s;
}

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

.footer-copy {
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
}

/* About Page */
.page-header {
  padding: 60px 0;
  background: var(--secondary);
  text-align: center;
}

.page-header h1 {
  font-size: 48px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.page-header p {
  font-size: 20px;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

.page-content {
  padding: 80px 0;
}

.page-content h2 {
  font-size: 28px;
  font-weight: 600;
  color: var(--text-dark);
  margin: 40px 0 20px;
}

.page-content h2:first-child {
  margin-top: 0;
}

.page-content p {
  color: var(--text-light);
  font-size: 17px;
  margin-bottom: 16px;
  max-width: 800px;
}

.page-content ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 24px;
}

.page-content li {
  color: var(--text-light);
  margin-bottom: 8px;
}

/* Responsive */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero h1 {
    font-size: 44px;
  }
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 16px;
  }
  
  .nav {
    gap: 20px;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero h1 {
    font-size: 36px;
  }
  
  .hero p {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-note {
    justify-content: center;
  }
  
  .hero-image {
    order: -1;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .content-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }
  
  .cta h2 {
    font-size: 32px;
  }
}