/* Grundlayout */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #d3d3d3;
}

#pos-container {
  display: grid;
  grid-template-areas:
    "top-buttons"
    "categories"
    "options"
    "control-panel";
  gap: 10px;
  padding: 20px;
}

/* Obere runde Buttons */
#top-buttons {
  display: flex;
  justify-content: space-around;
  grid-area: top-buttons;
}

.round-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #fff;
  border: 2px solid #ccc;
  font-size: 18px;
  font-weight: bold;
  cursor: pointer;
}

.round-btn:hover {
  background-color: #f2f2f2;
}

/* Kategorien (blaue Buttons) */
#categories {
  display: flex;
  justify-content: space-between;
  grid-area: categories;
}

.category-btn {
  background-color: #007bff;
  color: white;
  padding: 15px;
  border: none;
  border-radius: 5px;
  font-size: 16px;
  text-align: center;
  cursor: pointer;
  flex: 1;
  margin: 5px;
}

.category-btn:hover {
  background-color: #0056b3;
}

/* Untere Optionen */
#options {
  display: flex;
  flex-wrap: wrap;
  grid-area: options;
  gap: 10px;
}

.option-btn {
  flex: 1 0 30%;
  background-color: #fff;
  border: 1px solid #ccc;
  padding: 10px;
  text-align: center;
  border-radius: 5px;
  cursor: pointer;
}

.option-btn:hover {
  background-color: #f0f0f0;
}

/* Rechte Steuerleiste */
#control-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  grid-area: control-panel;
}

.control-btn {
  width: 100%;
  padding: 10px;
  font-size: 14px;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

.control-btn.red {
  background-color: #d9534f;
}

.control-btn.green {
  background-color: #5cb85c;
}

.control-btn.purple {
  background-color: #6f42c1;
}

.control-btn.yellow {
  background-color: #f0ad4e;
}