/* styles.css */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  color: #333;
  background-color: #f5f5f5;
  font-family: Segoe UI, Tahoma, Geneva, Verdana, sans-serif;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

header {
  text-align: center;
  color: #fff;
  background-color: #2c3e50;
  border-radius: 8px;
  margin-bottom: 30px;
  padding: 20px;
}

header h1 {
  margin-bottom: 10px;
  font-size: 2.5rem;
}

.model-info {
  opacity: .8;
  font-size: .9rem;
}

.simulator {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
}

.building {
  position: relative;
  background-color: #ecf0f1;
  border-radius: 8px;
  flex: 2;
  min-width: 600px;
  padding: 20px;
  box-shadow: 0 4px 6px #0000001a;
}

.floors {
  display: flex;
  position: relative;
  flex-direction: column-reverse;
  gap: 10px;
  height: 600px;
}

.floor {
  display: flex;
  position: relative;
  background-color: #bdc3c7;
  border-radius: 4px;
  align-items:  center;
  height: 50px;
  padding: 0 15px;
}

.floor-number {
  min-width: 30px;
  margin-right: 15px;
  font-weight: bold;
}

.floor-buttons {
  display: flex;
  gap: 10px;
}

.floor-button {
  cursor: pointer;
  border: none;
  border-radius: 4px;
  padding: 5px 10px;
  transition: background-color .3s;
  font-weight: bold;
}

.floor-button.up {
  color: #fff;
  background-color: #27ae60;
}

.floor-button.down {
  color: #fff;
  background-color: #e74c3c;
}

.floor-button:hover {
  opacity: .8;
}

.floor-button.active {
  box-shadow: 0 0 10px #fffc;
}

.elevator-shaft {
  position: absolute;
  overflow: hidden;
  background-color: #34495e;
  border-radius: 4px;
  width: 200px;
  top: 20px;
  bottom: 20px;
  right: 20px;
}

.elevators {
  position: relative;
  height: 100%;
}

.elevator {
  position: absolute;
  display: flex;
  color: #fff;
  background-color: #3498db;
  border-radius: 4px;
  flex-direction: column;
  justify-content: center;
  align-items:  center;
  width: 45px;
  height: 45px;
  transition: bottom 2s ease-in-out;
  font-size: .8rem;
  font-weight: bold;
  box-shadow: 0 2px 4px #0003;
}

.elevator.idle {
  background-color: #95a5a6;
}

.elevator.moving-up {
  background-color: #27ae60;
}

.elevator.moving-down {
  background-color: #e74c3c;
}

.elevator.doors-open {
  background-color: #f39c12;
}

.elevator-panel {
  position: absolute;
  display: none;
  background-color: #2c3e50;
  border-radius: 4px;
  flex-direction: column;
  gap: 2px;
  width: 140px;
  padding: 5px;
  top: 0;
  right: -150px;
}

.elevator:hover .elevator-panel {
  display: flex;
}

.elevator-floor-button {
  cursor: pointer;
  color: #2c3e50;
  background-color: #ecf0f1;
  border: none;
  border-radius: 2px;
  padding: 2px 5px;
  font-size: .7rem;
}

.elevator-floor-button:hover {
  background-color: #bdc3c7;
}

.elevator-floor-button.active {
  color: #fff;
  background-color: #3498db;
}

.controls {
  flex: 1;
  min-width: 300px;
}

.control-buttons {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.control-buttons button {
  cursor: pointer;
  border: none;
  border-radius: 4px;
  padding: 10px 15px;
  transition: background-color .3s;
  font-weight: bold;
}

#start-btn {
  color: #fff;
  background-color: #27ae60;
}

#stop-btn {
  color: #fff;
  background-color: #e74c3c;
}

#reset-btn {
  color: #fff;
  background-color: #f39c12;
}

.control-buttons button:hover {
  opacity: .8;
}

.status {
  background-color: #ecf0f1;
  border-radius: 8px;
  padding: 15px;
}

.status h3 {
  color: #2c3e50;
  margin-bottom: 10px;
}

.status p {
  margin-bottom: 5px;
}

.status span {
  color: #3498db;
  font-weight: bold;
}

.request-queue {
  background-color: #ecf0f1;
  border-radius: 8px;
  margin-top: 20px;
  padding: 15px;
}

.request-queue h3 {
  color: #2c3e50;
  margin-bottom: 10px;
}

.queue-item {
  background-color: #bdc3c7;
  border-radius: 4px;
  margin-bottom: 5px;
  padding: 5px 10px;
  font-size: .9rem;
}

@media (max-width: 768px) {
  .simulator {
    flex-direction: column;
  }

  .building {
    min-width: auto;
  }

  .elevator-shaft {
    width: 150px;
  }

  .elevator {
    width: 35px;
    height: 35px;
  }

  .elevator-panel {
    width: 110px;
    right: -120px;
  }
}