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

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  background: #f7fafc;
  color: #1a202c;
  line-height: 1.6;
}

.hero {
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-secondary) 100%
  );
  color: white;
  padding: 80px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="white" opacity="0.1"/></svg>');
  opacity: 0.4;
}

.back-btn {
  position: absolute;
  top: 20px;
  left: 20px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  color: white;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s ease;
  z-index: 10;
}

.back-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateX(-2px);
}

.back-btn svg {
  width: 16px;
  height: 16px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 16px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero .tagline {
  font-size: 1.25rem;
  opacity: 0.95;
  margin-bottom: 32px;
  font-weight: 300;
}

.app-badges {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  align-items: center;
}

.app-badges-wrapper {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 24px 32px;
  display: inline-block;
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%,
  100% {
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
  }
  50% {
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.4);
  }
}

.download-label {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
  opacity: 0.9;
}

.badge-ios {
  height: 54px;
  transition: transform 0.2s ease;
}

.badge-ios:hover {
  transform: scale(1.08);
}

.badge-android {
  height: 80px;
  margin: -13px 0;
  transition: transform 0.2s ease;
}

.badge-android:hover {
  transform: scale(1.08);
}

main {
  max-width: 1200px;
  margin: -40px auto 0;
  padding: 0 20px 60px;
  position: relative;
}

.features-section {
  background: white;
  border-radius: 24px;
  padding: 48px 32px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  margin-bottom: 32px;
}

.section-title {
  font-size: 2rem;
  color: #2d3748;
  text-align: center;
  margin-bottom: 48px;
  font-weight: 700;
}

.section-title span {
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-secondary) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  padding: 28px;
  border-radius: 16px;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid #e2e8f0;
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px var(--color-shadow);
  border-color: var(--color-primary);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-secondary) 100%
  );
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 24px;
}

.feature-card h3 {
  font-size: 1.15rem;
  color: #2d3748;
  margin-bottom: 8px;
  font-weight: 600;
}

.feature-card p {
  color: #64748b;
  font-size: 0.95rem;
  line-height: 1.6;
}

.highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.highlight-card {
  background: white;
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  border: 1px solid #e2e8f0;
}

.highlight-number {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-secondary) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.highlight-label {
  color: #64748b;
  font-size: 0.9rem;
  margin-top: 4px;
}

.support-section {
  background: white;
  border-radius: 24px;
  padding: 40px 32px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  text-align: center;
}

.support-section h2 {
  font-size: 1.5rem;
  color: #2d3748;
  margin-bottom: 16px;
}

.support-section p {
  color: #64748b;
  margin-bottom: 24px;
}

.support-links {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.support-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
}

.support-link.primary {
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-secondary) 100%
  );
  color: white;
}

.support-link.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--color-shadow);
}

.support-link.secondary {
  background: #f1f5f9;
  color: #475569;
}

.support-link.secondary:hover {
  background: #e2e8f0;
}

footer {
  text-align: center;
  padding: 40px 20px;
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-secondary) 100%
  );
  color: white;
}

footer a {
  color: white;
  text-decoration: none;
  opacity: 0.9;
}

footer a:hover {
  opacity: 1;
  text-decoration: underline;
}

.footer-links {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.feature-card {
  animation: fadeInUp 0.5s ease backwards;
}

.feature-card:nth-child(1) {
  animation-delay: 0.1s;
}
.feature-card:nth-child(2) {
  animation-delay: 0.15s;
}
.feature-card:nth-child(3) {
  animation-delay: 0.2s;
}
.feature-card:nth-child(4) {
  animation-delay: 0.25s;
}
.feature-card:nth-child(5) {
  animation-delay: 0.3s;
}
.feature-card:nth-child(6) {
  animation-delay: 0.35s;
}

@media (max-width: 768px) {
  .hero {
    padding: 60px 20px;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

  .features-section {
    padding: 32px 20px;
  }

  .section-title {
    font-size: 1.5rem;
    margin-bottom: 32px;
  }

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

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.85rem;
  }

  .hero .tagline {
    font-size: 1.1rem;
  }

  .highlight-number {
    font-size: 2rem;
  }
}