:root {
  --primary-blue: #2563eb;
  --secondary-blue: #3b82f6;
  --light-blue: #dbeafe;
  --dark-blue: #1e40af;
  --white: #ffffff;
  --light-gray: #f8fafc;
  --medium-gray: #64748b;
  --dark-gray: #334155;
  --success-green: #10b981;
  --accent-purple: #8b5cf6;
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
  --gradient-secondary: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

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

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

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  z-index: 2;
  position: relative;
}

.hero-text {
  color: var(--white);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeInUp 1s ease-out 0.2s forwards;
}

.hero-subtitle {
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.6;
  margin-bottom: 40px;
  opacity: 0.9;
  opacity: 0;
  animation: fadeInUp 1s ease-out 0.4s forwards;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--white);
  color: var(--primary-blue);
  padding: 16px 32px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
  opacity: 0;
  animation: fadeInUp 1s ease-out 0.6s forwards;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.android-icon {
  width: 24px;
  height: 24px;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  animation: fadeInUp 1s ease-out 0.8s forwards;
}

.phone-mockup {
  width: 280px;
  height: 560px;
  background: var(--dark-gray);
  border-radius: 32px;
  padding: 8px;
  box-shadow: var(--shadow-xl);
  position: relative;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: var(--white);
  border-radius: 24px;
  overflow: hidden;
  position: relative;
}

.app-interface {
  padding: 20px;
  height: 100%;
}

.status-bar {
  height: 24px;
  background: var(--light-gray);
  border-radius: 12px;
  margin-bottom: 20px;
}

.app-header {
  text-align: center;
  margin-bottom: 40px;
}

.app-header h3 {
  color: var(--primary-blue);
  font-size: 1.2rem;
  font-weight: 600;
}

.dashboard-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mini-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--light-gray);
  border-radius: 12px;
}

.card-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.card-icon.blue {
  background: var(--primary-blue);
}

.card-icon.green {
  background: var(--success-green);
}

.card-icon.purple {
  background: var(--accent-purple);
}

.mini-card span {
  font-weight: 500;
  color: var(--dark-gray);
}

.hero-shapes {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.shape {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}

.shape-1 {
  width: 200px;
  height: 200px;
  top: 10%;
  right: 10%;
  animation: float 6s ease-in-out infinite;
}

.shape-2 {
  width: 150px;
  height: 150px;
  bottom: 20%;
  left: 5%;
  animation: float 8s ease-in-out infinite reverse;
}

.shape-3 {
  width: 100px;
  height: 100px;
  top: 60%;
  right: 20%;
  animation: float 10s ease-in-out infinite;
}

/* Intro Section */
.intro {
  padding: 100px 0;
  background: var(--light-gray);
}

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

.intro-text {
  font-size: 1.5rem;
  line-height: 1.7;
  color: var(--medium-gray);
  margin-bottom: 60px;
  font-weight: 400;
}

.intro-icons {
  display: flex;
  justify-content: center;
  gap: 60px;
}

.intro-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.icon-circle {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease;
}

.icon-circle:hover {
  transform: translateY(-4px);
}

.icon-circle svg {
  width: 32px;
  height: 32px;
  color: var(--white);
}

.intro-icon span {
  font-weight: 600;
  color: var(--dark-gray);
  font-size: 1.1rem;
}

/* Features Section */
.features {
  padding: 120px 0;
  background: var(--white);
}

.section-title {
  text-align: center;
  font-size: 3rem;
  font-weight: 700;
  color: var(--dark-gray);
  margin-bottom: 80px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
}

.feature-card {
  background: var(--white);
  padding: 40px 32px;
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(37, 99, 235, 0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-primary);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: var(--gradient-primary);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.feature-icon svg {
  width: 32px;
  height: 32px;
  color: var(--white);
}

.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--dark-gray);
  margin-bottom: 16px;
}

.feature-card p {
  color: var(--medium-gray);
  line-height: 1.6;
  font-size: 1rem;
}

/* Footer */
.footer {
  background: var(--dark-gray);
  padding: 60px 0;
}

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

.footer-logo h3 {
  color: var(--white);
  font-size: 1.8rem;
  font-weight: 700;
}

.footer-text {
  color: var(--medium-gray);
  font-size: 0.95rem;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* Responsive Design */
@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .phone-mockup {
    width: 240px;
    height: 480px;
  }
  
  .intro-icons {
    flex-direction: column;
    gap: 40px;
  }
  
  .section-title {
    font-size: 2.2rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .feature-card {
    padding: 32px 24px;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
  
  .container {
    padding: 0 16px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 60px 0;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .intro-text {
    font-size: 1.2rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .feature-card {
    padding: 24px 20px;
  }
}