/* styles.css */
:root {
  --primary-color: #2c3e50;
  --secondary-color: #3498db;
  --accent-color: #e74c3c;
  --background-color: #ecf0f1;
  --text-color: #333;
  --border-color: #bdc3c7;
  --button-normal: #fff;
  --button-hover: #f0f0f0;
  --button-active: #ddd;
  --button-disabled: #ccc;
  --elevator-color: #3498db;
  --elevator-door: #2980b9;
  --floor-color: #fff;
  --floor-border: #ddd;
  --building-width: 300px;
  --floor-height: 60px;
  --elevator-width: 80px;
  --elevator-height: 50px;
  --button-size: 30px;
  --control-panel-width: 200px;
  --elevator-speed: 2s;
  --button-press-duration: .1s;
}

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

body {
  background-color: var(--background-color);
  color: var(--text-color);
  padding: 20px;
  font-family: Segoe UI, Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
}

header {
  text-align: center;
  background-color: var(--primary-color);
  color: #fff;
  border-radius: 10px;
  margin-bottom: 30px;
  padding: 20px;
  box-shadow: 0 4px 6px #0000001a;
}

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

header p {
  opacity: .9;
  font-size: 1rem;
}

.container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto auto;
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.building {
  grid-column: 1;
  grid-row: 1 / span 2;
  background-color: #fff;
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 4px 8px #0000001a;
}

.building h2 {
  text-align: center;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.floors {
  display: flex;
  height: calc(var(--floor-height) * 10);
  border: 2px solid var(--border-color);
  overflow: hidden;
  border-radius: 5px;
  flex-direction: column-reverse;
}

.floor {
  height: var(--floor-height);
  display: flex;
  border-bottom: 1px solid var(--floor-border);
  background-color: var(--floor-color);
  align-items:  center;
  padding: 0 15px;
}

.floor:last-child {
  border-bottom: none;
}

.floor-info {
  display: flex;
  justify-content: space-between;
  align-items:  center;
  width: 100%;
}

.floor-number {
  font-size: 1.1rem;
  font-weight: bold;
}

.floor-button {
  width: var(--button-size);
  height: var(--button-size);
  border: 2px solid var(--border-color);
  background-color: var(--button-normal);
  cursor: pointer;
  display: flex;
  border-radius: 50%;
  justify-content: center;
  align-items:  center;
  transition: all .2s;
  font-size: 16px;
  font-weight: bold;
}

.floor-button:hover:not(:disabled) {
  background-color: var(--button-hover);
  transform: scale(1.1);
}

.floor-button:active:not(:disabled) {
  background-color: var(--button-active);
  transform: scale(.95);
}

.floor-button:disabled {
  background-color: var(--button-disabled);
  cursor: not-allowed;
  opacity: .5;
}

.elevator-shafts {
  grid-column: 2;
  grid-row: 1;
  background-color: #fff;
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 4px 8px #0000001a;
}

.elevator-shafts h2 {
  text-align: center;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.shafts-container {
  display: flex;
  border: 2px solid var(--border-color);
  position: relative;
  background-color: #f8f9fa;
  border-radius: 5px;
  justify-content: space-around;
  height: 600px;
  padding: 10px;
}

.elevator-shaft {
  width: calc(var(--elevator-width)  + 10px);
  display: flex;
  position: relative;
  flex-direction: column;
  height: 100%;
}

.elevator {
  width: var(--elevator-width);
  height: var(--elevator-height);
  background-color: var(--elevator-color);
  border: 2px solid var(--elevator-door);
  position: absolute;
  display: flex;
  color: #fff;
  transition: bottom var(--elevator-speed) linear;
  border-radius: 5px;
  flex-direction: column;
  justify-content: center;
  align-items:  center;
  font-weight: bold;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 2px 5px #0003;
}

.elevator-id {
  margin-bottom: 2px;
  font-size: .8rem;
}

.elevator-floor, .elevator-direction {
  font-size: .7rem;
}

.control-panels {
  grid-column: 2;
  grid-row: 2;
  background-color: #fff;
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 4px 8px #0000001a;
}

.control-panels h2 {
  text-align: center;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.control-panel {
  border: 1px solid var(--border-color);
  background-color: #f8f9fa;
  border-radius: 5px;
  margin-bottom: 20px;
  padding: 15px;
}

.control-panel:last-child {
  margin-bottom: 0;
}

.control-panel h3 {
  color: var(--secondary-color);
  text-align: center;
  margin-bottom: 10px;
}

.button-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}

.elevator-button {
  width: var(--button-size);
  height: var(--button-size);
  border: 2px solid var(--border-color);
  background-color: var(--button-normal);
  cursor: pointer;
  display: flex;
  border-radius: 50%;
  justify-content: center;
  align-items:  center;
  transition: all .2s;
  font-size: 14px;
  font-weight: bold;
}

.elevator-button:hover {
  background-color: var(--button-hover);
  transform: scale(1.1);
}

.elevator-button:active {
  background-color: var(--button-active);
  transform: scale(.95);
}

.elevator-button.pressed {
  background-color: var(--secondary-color);
  color: #fff;
  box-shadow: inset 0 0 5px #0000004d;
}

.status-display {
  grid-column: 1 / span 2;
  grid-row: 3;
  background-color: #fff;
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 4px 8px #0000001a;
}

.status-display h2 {
  text-align: center;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.status-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}

.status-item {
  background-color: var(--secondary-color);
  color: #fff;
  text-align: center;
  border-radius: 20px;
  min-width: 150px;
  margin: 10px;
  padding: 10px 20px;
}

.status-label {
  display: block;
  margin-bottom: 5px;
  font-weight: bold;
}

@media (max-width: 900px) {
  .container {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .building, .elevator-shafts, .control-panels, .status-display {
    grid-column: 1;
  }

  .building {
    grid-row: 1;
  }

  .elevator-shafts {
    grid-row: 2;
  }

  .control-panels {
    grid-row: 3;
  }

  .status-display {
    grid-row: 4;
  }

  .shafts-container {
    height: 400px;
  }
}

@keyframes buttonPress {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(.9);
  }

  100% {
    transform: scale(1);
  }
}

.floor-button:active:not(:disabled), .elevator-button:active {
  animation: buttonPress var(--button-press-duration) ease;
}