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

html, body {
  width: 100%;
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.landing {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  background-color: #1a1a2e;
  background-size: cover;
  background-position: top center;
  background-repeat: no-repeat;
}

/* Default PC background */
body.device-pc .landing {
  background-image: url("assets/pc_bg.png");
}

/* Mobile background */
body.device-mobile .landing {
  background-image: url("assets/mobile_bg.png");
}

.content {
  text-align: center;
  padding: 0 1rem 2rem;
}

.buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.buttons-mobile {
  display: none;
}

.btn {
  display: inline-block;
  padding: 0.875rem 1.5rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
}

.btn:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

@media (prefers-reduced-motion: no-preference) {
  .btn {
    transition: transform 0.15s ease, opacity 0.15s ease;
  }

  .btn:hover {
    transform: translateY(-2px);
    opacity: 0.95;
  }
}

.btn-android {
  background-color: #3ddc84;
  color: #000;
}

.btn-ios {
  background-color: #007aff;
  color: #fff;
}

.btn-primary {
  background-color: #00D0BB;
  color: #fff;
  border: 1px solid #fff;
  border-radius: 22px;
}

/* Mobile breakpoint */
@media (max-width: 768px) {
  .buttons-pc {
    display: none;
  }

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

  .btn {
    width: 100%;
    max-width: 280px;
  }

  .btn-primary {
    width: 319px;
    height: 44px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }
}