:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #666666;
  --accent: #007aff;
  --radius: 12px;
  --font: 'Inter', sans-serif;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}

.hero {
  text-align: center;
  padding: 4rem 0;
}

.hero h1 {
  font-size: 3.5rem;
  margin: 0;
}

.hero p {
  color: var(--muted);
  font-size: 1.2rem;
}

h2 {
  margin-bottom: 1rem;
}

.apps-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.app-card {
  border: 1px solid #eaeaea;
  padding: 1.5rem;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.app-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.app-detail {
  margin-top: 3rem;
}

.store-button {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.8rem 1.4rem;
  background: var(--accent);
  color: white;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
}

/* Fade-in animation */
.fade-in {
  opacity: 0;
  animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

/* Slide-up animation */
.slide-up {
  opacity: 0;
  transform: translateY(20px);
  animation: slideUp 0.8s ease forwards;
}

@keyframes slideUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Delays */
.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

/* Intro section */
.intro {
  max-width: 700px;
  margin: 0 auto 3rem auto;
  text-align: center;
}

/* App grid hover improvements */
.app-card {
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.app-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 8px 20px rgba(0,0,0,0.06);
}