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

:root {
  --primary: #6200ee;
  --primary-dark: #3700b3;
  --primary-light: #bb86fc;
  --secondary: #03dac6;
  --background: #ffffff;
  --surface: #f5f5f5;
  --text: #000000;
  --text-secondary: #666666;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-large: 0 4px 16px rgba(0, 0, 0, 0.15);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--background);
}

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

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 80px 0 60px;
  min-height: 600px;
  display: flex;
  align-items: center;
}

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

.hero h1 {
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.1;
}

.tagline {
  font-size: 1.5rem;
  margin-bottom: 20px;
  opacity: 0.95;
  font-weight: 500;
}

.description {
  font-size: 1.1rem;
  margin-bottom: 40px;
  opacity: 0.9;
  line-height: 1.7;
}

.cta-buttons {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
  display: inline-block;
  padding: 16px 32px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background-color: #00c4b3;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(3, 218, 198, 0.3);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.2);
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.3);
}

.btn-primary.large {
  padding: 20px 48px;
  font-size: 1.3rem;
}

.phone-mockup {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px;
}

.icon-large {
  width: 300px;
  height: 300px;
  filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
  animation: float 3s ease-in-out infinite;
}

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

/* Features Section */
.features {
  padding: 80px 0;
  background-color: var(--background);
}

.features h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 60px;
  color: var(--primary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.feature-card {
  background-color: white;
  padding: 40px 30px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  text-align: center;
}

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

.feature-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.4rem;
  margin-bottom: 15px;
  color: var(--primary);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--surface) 0%, white 100%);
}

.how-it-works h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 60px;
  color: var(--primary);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
}

.step {
  text-align: center;
  padding: 30px;
}

.step-number {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  margin: 0 auto 20px;
  box-shadow: 0 4px 12px rgba(98, 0, 238, 0.3);
}

.step h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: var(--primary);
}

.step p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* CTA Section */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  text-align: center;
}

.cta-section h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.cta-section > p {
  font-size: 1.2rem;
  margin-bottom: 40px;
  opacity: 0.9;
}

.install-note {
  margin-top: 30px;
  opacity: 0.8;
  font-size: 0.95rem;
}

/* Footer */
.footer {
  padding: 40px 0;
  background-color: var(--primary-dark);
  color: white;
  text-align: center;
}

.footer p {
  margin: 10px 0;
  opacity: 0.9;
}

.tech-note {
  font-size: 0.9rem;
  opacity: 0.7;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero {
    padding: 60px 0 40px;
    min-height: auto;
  }

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

  .tagline {
    font-size: 1.2rem;
  }

  .description {
    font-size: 1rem;
  }

  .icon-large {
    width: 200px;
    height: 200px;
  }

  .features h2,
  .how-it-works h2,
  .cta-section h2 {
    font-size: 2rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .cta-buttons {
    flex-direction: column;
  }

  .btn-primary, .btn-secondary {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .container {
    padding: 0 15px;
  }

  .features,
  .how-it-works,
  .cta-section {
    padding: 50px 0;
  }
}