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

/* Page background & centering */
body {
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: #222;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

/* Kiosk container */
.kiosk {
  background: #333;
  border-radius: 12px;
  overflow: hidden;
  width: 900px;
  max-width: 95%;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

/* Header */
header {
  background: #444;
  padding: 20px;
  text-align: center;
}
header h1 {
  font-size: 2rem;
}

/* Main layout: inventory + controls */
main {
  display: grid;
  grid-template-columns: 1fr 2fr;
}

/* Inventory panel */
.status-panel {
  background: #2a2a2a;
  padding: 20px;
}
.status-panel h2 {
  margin-bottom: 10px;
  font-size: 1.5rem;
  border-bottom: 2px solid #555;
  padding-bottom: 5px;
}
.status-panel ul {
  list-style: none;
  margin-top: 15px;
}
.status-panel li {
  margin: 8px 0;
  font-size: 1rem;
}

/* Control panel */
.control-panel {
  padding: 20px;
  display: flex;
  flex-direction: column;
}

/* Top buttons */
.buttons {
  display: flex;
  justify-content: space-around;
  margin-bottom: 20px;
}
.buttons button {
  flex: 1;
  margin: 0 10px;
  padding: 15px;
  font-size: 1.1rem;
  background: #ff8c00;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s;
}
.buttons button:hover {
  background: #ffa533;
}

/* Action area */
.action-area {
  background: #1f1f1f;
  flex: 1;
  padding: 15px;
  border-radius: 8px;
  overflow-y: auto;
}

/* Headings inside action area */
.action-area h3 {
    text-align: center;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

/* Form labels */
.action-area form label {
  display: block;
  margin: 10px 0;
}

/* Number inputs */
.action-area input[type="number"] {
  width: 80px;
  padding: 5px;
  margin-left: 10px;
}

/* Action buttons */
.action-area button {
  margin-top: 15px;
  padding: 10px 20px;
  font-size: 1rem;
  background: #28a745;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s;
}
.action-area button:disabled {
  background: #666;
  cursor: not-allowed;
}
.action-area button:hover:not(:disabled) {
  background: #3dcb6d;
}

/* Center the refill container under Fill button */
.refill-container {
  display: grid;
  justify-content: space-around;
  grid-template-columns: repeat(2, 1fr); /* three fields per row; use repeat(4, 1fr) for four */
  gap: 12px;
  margin: 0;
  width: 100%;
}

/* Each grid cell stacks label above input */
.refill-container > div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

/* Label styling */
.refill-container > div label {
  margin-bottom: 6px;
  font-size: 0.95rem;
}

/* Input full width of cell */
.refill-container > div input {
  width: 100%;
  padding: 5px;
  box-sizing: border-box;
}