html, body {
  height: 100%;
  margin: 0;
}

body {
  margin: 0;
  padding: 0;
  font-family: system-ui, sans-serif;

  background:
    url('backgrounds/background-dark-circle.png') center 10% / contain no-repeat,
    #0d0d0d;

  color: #fff;
}

/* Top-aligned layout */
.container {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-top: 320px;
  width: 100%;
}

/* Heading at the top of the page */
.page-title {
  text-align: center;
  margin-top: 40px;
  margin-bottom: 40px;
  font-size: 2rem;
  color: rgba(255,255,255,0.85);
}


.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 24px;
  padding: 0 20px;
  width: 100%;
  max-width: 600px; /* perfect for 3 tiles */
  margin: 0 auto; /* center the grid */
}

.tile {
  background: rgba(255, 255, 255, 0.10);
  backdrop-filter: blur(6px);
  padding: 16px;
  border-radius: 16px;
  text-decoration: none;
  text-align: center;
  color: inherit;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.tile:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.tile img {
  width: 56px;
  height: 56px;
  margin-bottom: 12px;
}

.tile span {
  display: block;
  margin-top: 8px;
  font-size: 1.05rem;
  color: #fff;
}