/* styles.css */
:root {
  --floor-height: 60px;
  --elevator-width: 50px;
  --building-bg: #f0f0f0;
  --elevator-bg: #333;
  --elevator-active-bg: #2196f3;
  --button-size: 24px;
  --gap: 10px;
}

body {
  display: flex;
  background-color: #eef2f5;
  flex-direction: column;
  align-items:  center;
  margin: 0;
  padding: 20px;
  font-family: Segoe UI, Tahoma, Geneva, Verdana, sans-serif;
}

.info-panel {
  text-align: center;
  background: #fff;
  border-radius: 8px;
  margin-bottom: 20px;
  padding: 15px 30px;
  box-shadow: 0 2px 5px #0000001a;
}

.info-panel h1 {
  color: #333;
  margin: 0 0 10px;
  font-size: 1.5rem;
}

.info-panel p {
  color: #666;
  margin: 5px 0;
  font-size: .9rem;
}

#simulator-container {
  display: flex;
  overflow-x: auto;
  background: #fff;
  border-radius: 8px;
  flex-direction: column;
  padding: 20px;
  box-shadow: 0 4px 10px #0000001a;
}

.building {
  display: flex;
  background-color: var(--building-bg);
  position: relative;
  border: 2px solid #ccc;
  flex-direction: row;
  padding: 10px;
}

.floors-control-column {
  display: flex;
  flex-direction: column-reverse;
  margin-right: 20px;
}

.floor-control {
  height: var(--floor-height);
  display: flex;
  box-sizing: border-box;
  border-bottom: 1px solid #ddd;
  justify-content: space-between;
  align-items:  center;
  width: 120px;
  padding: 0 10px;
}

.floor-label {
  color: #555;
  font-weight: bold;
}

.floor-buttons {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.floor-btn {
  width: var(--button-size);
  height: var(--button-size);
  cursor: pointer;
  display: flex;
  background: #eee;
  border: 1px solid #aaa;
  border-radius: 4px;
  justify-content: center;
  align-items:  center;
  transition: background .2s;
  font-size: 12px;
}

.floor-btn:hover {
  background: #ddd;
}

.floor-btn.active {
  color: #fff;
  background: #ff9800;
  border-color: #e65100;
}

.shafts-container {
  display: flex;
  flex-direction: row;
  gap: 15px;
}

.elevator-shaft {
  position: relative;
  width: var(--elevator-width);
  background-color: #ddd;
  border: 1px solid #bbb;
}

.shaft-floor-guide {
  position: absolute;
  background-color: #0000001a;
  width: 100%;
  height: 1px;
}

.elevator {
  position: absolute;
  height: var(--floor-height);
  background-color: var(--elevator-bg);
  display: flex;
  color: #fff;
  z-index: 10;
  border-radius: 2px;
  flex-direction: column;
  justify-content: center;
  align-items:  center;
  width: 100%;
  transition: bottom 1s linear;
  font-size: 10px;
  bottom: 0;
  left: 0;
  box-shadow: 0 2px 4px #0000004d;
}

.elevator.busy {
  background-color: var(--elevator-active-bg);
}

.elevator-doors {
  position: absolute;
  display: flex;
  pointer-events: none;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}

.door-left, .door-right {
  background-color: silver;
  border: 1px solid #999;
  width: 50%;
  height: 100%;
  transition: transform .5s ease-in-out;
}

.elevator.open .door-left {
  transform: translateX(-80%);
}

.elevator.open .door-right {
  transform: translateX(80%);
}

.elevator-info {
  z-index: 11;
  text-align: center;
}

.controls-container {
  display: flex;
  flex-direction: row;
  gap: 15px;
  margin-top: 20px;
  padding-left: 150px;
}

.elevator-panel {
  width: var(--elevator-width);
  display: flex;
  background: #eee;
  border: 1px solid #ccc;
  border-radius: 4px;
  flex-direction: column-reverse;
  gap: 2px;
  padding: 5px;
}

.panel-btn {
  cursor: pointer;
  background: #fff;
  border: 1px solid #999;
  width: 100%;
  height: 20px;
  font-size: 10px;
}

.panel-btn.active {
  color: #fff;
  background: #4caf50;
}