* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", sans-serif;
}

body {
  background: black;
  color: white;
  height: 100vh;
  overflow: hidden;
}

#wallpaper {
  position: fixed;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: -1;
}

/* Tile area */
#tiles {
  height: 100vh;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 80px;
  gap: 8px;
  padding: 12px;
}

/* Tiles */
.tile {
  background: #1ba1e2;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  user-select: none;
}

.tile img {
  width: 32px;
  height: 32px;
  margin-bottom: 4px;
}

.small { grid-column: span 1; grid-row: span 1; }
.medium { grid-column: span 2; grid-row: span 1; }
.wide { grid-column: span 4; grid-row: span 1; }
.large { grid-column: span 2; grid-row: span 2; }

/* Controls */
#controls {
  position: fixed;
  bottom: 16px;
  right: 16px;
  display: flex;
  gap: 10px;
}

.control-btn {
  padding: 10px 14px;
  background: rgba(0,0,0,0.6);
  color: white;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 6px;
  font-size: 14px;
}