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

:root {
  --primary-color: #10b981;
  --secondary-color: #3b82f6;
  --accent-color: #f59e0b;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --bg-light: #f9fafb;
  --bg-white: #ffffff;
  --border-color: #e5e7eb;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

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

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  z-index: 1000;
  animation: slideDown 0.5s ease-out;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 20px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: inline-block;
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--primary-color);
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--primary-color);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-block;
}

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

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

.hero {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #ecfdf5 0%, #f0f9ff 100%);
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
}

.hero-content p {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-mockup {
  width: 300px;
  height: 600px;
  background: linear-gradient(145deg, #1f2937, #374151);
  border-radius: 40px;
  padding: 15px;
  box-shadow: var(--shadow-lg);
  animation: float 3s ease-in-out infinite;
  position: relative;
}

.phone-mockup::before {
  content: '';
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 6px;
  background-color: #4b5563;
  border-radius: 3px;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
  border-radius: 30px;
  overflow: hidden;
  position: relative;
}

.app-preview {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
  animation: pulse 2s ease-in-out infinite;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--text-dark);
}

.features {
  padding: 80px 0;
  background-color: var(--bg-white);
}

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

.feature-card {
  background-color: var(--bg-white);
  padding: 2rem;
  border-radius: 16px;
  border: 2px solid var(--border-color);
  transition: all 0.3s ease;
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: inline-block;
  animation: bounce 2s ease-in-out infinite;
}

.feature-card:nth-child(even) .feature-icon {
  animation-delay: 0.5s;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.feature-card p {
  color: var(--text-light);
  line-height: 1.8;
}

.how-it-works {
  padding: 80px 0;
  background-color: var(--bg-light);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  position: relative;
}

.step {
  text-align: center;
  padding: 2rem;
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
}

.step:nth-child(1) { animation-delay: 0.2s; }
.step:nth-child(2) { animation-delay: 0.4s; }
.step:nth-child(3) { animation-delay: 0.6s; }
.step:nth-child(4) { animation-delay: 0.8s; }

.step-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 1.5rem;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

.step:hover .step-number {
  transform: scale(1.1) rotate(360deg);
}

.step h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.step p {
  color: var(--text-light);
  line-height: 1.8;
}

.testimonials {
  padding: 80px 0;
  background-color: var(--bg-white);
}

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

.testimonial-card {
  background-color: var(--bg-light);
  padding: 2rem;
  border-radius: 16px;
  border-left: 4px solid var(--primary-color);
  box-shadow: var(--shadow);
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
  transition: transform 0.3s ease;
}

.testimonial-card:nth-child(1) { animation-delay: 0.1s; }
.testimonial-card:nth-child(2) { animation-delay: 0.3s; }
.testimonial-card:nth-child(3) { animation-delay: 0.5s; }

.testimonial-card:hover {
  transform: translateY(-5px);
}

.testimonial-card p {
  font-style: italic;
  color: var(--text-dark);
  margin-bottom: 1rem;
  line-height: 1.8;
}

.testimonial-author {
  color: var(--text-light);
  font-weight: 600;
}

.download {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  text-align: center;
}

.download .section-title {
  color: white;
}

.download-subtitle {
  font-size: 1.25rem;
  margin-bottom: 3rem;
  opacity: 0.9;
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.store-button {
  display: flex;
  align-items: center;
  gap: 1rem;
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 1rem 2rem;
  border-radius: 12px;
  text-decoration: none;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
  transition: all 0.3s ease;
}

.store-button:hover {
  background-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.store-icon {
  font-size: 2rem;
}

.store-text {
  text-align: left;
}

.store-label {
  font-size: 0.75rem;
  opacity: 0.8;
}

.store-name {
  font-size: 1.25rem;
  font-weight: 600;
}

.footer {
  background-color: var(--text-dark);
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.footer-links, .footer-social {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a, .footer-social a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.5);
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@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);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.fade-in {
  animation: fadeInUp 0.8s ease forwards;
}

.fade-in-delay {
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
  animation-delay: 0.3s;
}

.fade-in-delay-2 {
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
  animation-delay: 0.6s;
}

@media (max-width: 768px) {
  .nav-links {
    gap: 1rem;
  }

  .nav-links a:not(.btn-primary) {
    display: none;
  }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

  .cta-buttons {
    justify-content: center;
    flex-direction: column;
  }

  .phone-mockup {
    width: 250px;
    height: 500px;
  }

  .section-title {
    font-size: 2rem;
  }

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

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

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

  .download-buttons {
    flex-direction: column;
    align-items: center;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-links, .footer-social {
    align-items: center;
  }
}