:root {
  --primary: #1565C0;
  --primary-dark: #0D47A1;
  --accent: #4FC3F7;
  --bg: #F5F7FA;
  --text: #1A202C;
  --text-secondary: #4A5568;
  --surface: #FFFFFF;
  --glass: rgba(255, 255, 255, 0.7);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  --border: rgba(0, 0, 0, 0.06);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

header {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: absolute;
  width: 100%;
  z-index: 100;
}

.logo {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero {
  padding: 160px 0 100px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  background: radial-gradient(circle at top right, rgba(21, 101, 192, 0.05), transparent),
              radial-gradient(circle at bottom left, rgba(79, 195, 247, 0.05), transparent);
}

.hero-content {
  flex: 1;
}

.hero-title {
  font-size: 56px;
  line-height: 1.1;
  font-weight: 800;
  margin-bottom: 24px;
  color: #111;
}

.hero-title span {
  color: var(--primary);
  display: block;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 500px;
}

.cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-primary {
  background-color: var(--primary);
  color: white;
  box-shadow: 0 4px 14px rgba(21, 101, 192, 0.25);
}

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

.hero-image {
  flex: 1;
  display: flex;
  justify-content: flex-end;
  position: relative;
}

.hero-image img {
  max-width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 50px rgba(0,0,0,0.15));
  border-radius: 40px;
}

.features {
  padding: 100px 0;
  background: white;
}

.section-tag {
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 14px;
  display: block;
  text-align: center;
  margin-bottom: 12px;
}

.section-title {
  font-size: 40px;
  font-weight: 800;
  text-align: center;
  margin-bottom: 60px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.feature-card {
  padding: 40px;
  border-radius: 24px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.feature-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
  transform: translateY(-5px);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: rgba(21, 101, 192, 0.08);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 24px;
  color: var(--primary);
}

.feature-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
}

.feature-card p {
  color: var(--text-secondary);
}

footer {
  padding: 80px 0 40px;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

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

.footer-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 14px;
  transition: color 0.3s ease;
}

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

.copyright {
  color: var(--text-secondary);
  font-size: 14px;
}

@media (max-width: 968px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding-top: 120px;
  }
  .hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .hero-title {
    font-size: 42px;
  }
  .hero-image {
    justify-content: center;
  }
}