* { box-sizing: border-box; margin: 0; padding: 0; }
  body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    background: #0D0D0F;
    color: #fff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    text-align: center;
    -webkit-font-smoothing: antialiased;
  }
  .logo {
    width: 96px;
    height: 96px;
    border-radius: 22px;
    margin-bottom: 32px;
    box-shadow: 0 12px 40px rgba(0,89,241,0.3);
  }
  h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
  }
  .tagline {
    font-size: 18px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 48px;
    max-width: 320px;
  }
  .store-buttons {
    display: flex;
    flex-direction: column;
    gap: 14px;
    width: 100%;
    max-width: 280px;
  }
  .store-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 24px;
    border-radius: 14px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.1s;
  }
  .store-btn:active { transform: scale(0.97); }
  .store-btn-apple {
    background: #fff;
    color: #000;
  }
  .store-btn-google {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255,255,255,0.2);
  }
  .store-icon { font-size: 20px; }
  @media (min-width: 600px) {
    h1 { font-size: 40px; }
    .tagline { font-size: 20px; }
    .store-buttons { flex-direction: row; max-width: 100%; gap: 16px; }
    .store-btn { min-width: 200px; }
  }