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

body {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  padding: 20px;
  font-family: Segoe UI, Tahoma, Geneva, Verdana, sans-serif;
}

.container {
  overflow: hidden;
  background: #fff;
  border-radius: 20px;
  max-width: 1400px;
  margin: 0 auto;
  box-shadow: 0 20px 60px #0000004d;
}

header {
  color: #fff;
  text-align: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 30px;
}

header h1 {
  text-shadow: 2px 2px 4px #0000004d;
  margin-bottom: 10px;
  font-size: 2.5em;
}

header .info {
  opacity: .9;
  font-size: 1.2em;
}

.simulator {
  display: flex;
  gap: 30px;
  min-height: 600px;
  padding: 30px;
}

.building {
  display: flex;
  background: #f8f9fa;
  border-radius: 15px;
  flex: 1;
  padding: 20px;
  box-shadow: inset 0 2px 10px #0000001a;
}

.elevator-shafts {
  display: flex;
  gap: 10px;
  margin-right: 30px;
}

.elevator-shaft {
  position: relative;
  background: #2c3e50;
  border-radius: 10px;
  width: 80px;
  box-shadow: inset 0 2px 10px #0000004d;
}

.elevator {
  position: absolute;
  display: flex;
  z-index: 10;
  background: linear-gradient(135deg, #3498db, #2980b9);
  border-radius: 8px;
  flex-direction: column;
  justify-content: center;
  align-items:  center;
  width: 70px;
  height: 70px;
  transition: all .3s;
  left: 5px;
  box-shadow: 0 4px 15px #0000004d;
}

.elevator:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px #0006;
}

.elevator-info {
  display: flex;
  color: #fff;
  align-items:  center;
  gap: 5px;
  margin-bottom: 5px;
  font-weight: bold;
}

.elevator-id {
  background: #0000004d;
  border-radius: 4px;
  padding: 2px 6px;
  font-size: .8em;
}

.floor-display {
  color: #2c3e50;
  text-align: center;
  background: #ffffffe6;
  border-radius: 4px;
  min-width: 25px;
  padding: 2px 8px;
  font-size: 1.1em;
}

.status {
  margin-left: 2px;
  font-size: 1.2em;
}

.direction-indicator {
  position: absolute;
  color: #fff;
  font-size: .9em;
  font-weight: bold;
  top: 5px;
  right: 5px;
}

.elevator-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
  margin-top: 5px;
}

.floor-btn {
  color: #fff;
  cursor: pointer;
  background: #fff3;
  border: none;
  border-radius: 3px;
  width: 20px;
  height: 20px;
  transition: all .2s;
  font-size: .7em;
}

.floor-btn:hover {
  background: #fff6;
  transform: scale(1.1);
}

.floor-btn.pressed {
  background: #f39c12;
  transform: scale(.95);
}

.floors-container {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.floor {
  display: flex;
  background: #fff;
  border-bottom: 2px solid #e9ecef;
  justify-content: space-between;
  align-items:  center;
  min-height: 80px;
  padding: 15px 20px;
  transition: all .3s;
}

.floor:hover {
  background: #f8f9fa;
  transform: translateX(5px);
}

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

.floor-info {
  display: flex;
  align-items:  center;
  gap: 15px;
}

.floor-number {
  color: #2c3e50;
  min-width: 80px;
  font-size: 1.3em;
  font-weight: bold;
}

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

.up-btn, .down-btn {
  cursor: pointer;
  border: none;
  border-radius: 50%;
  width: 45px;
  height: 45px;
  transition: all .3s;
  font-size: 1.2em;
  box-shadow: 0 2px 8px #0003;
}

.up-btn {
  color: #fff;
  background: linear-gradient(135deg, #2ecc71, #27ae60);
}

.down-btn {
  color: #fff;
  background: linear-gradient(135deg, #e74c3c, #c0392b);
}

.up-btn:hover, .down-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px #0000004d;
}

.up-btn:active, .down-btn:active {
  transform: translateY(0);
}

.up-btn.active, .down-btn.active {
  animation: pulse 1s infinite;
  background: linear-gradient(135deg, #f39c12, #d35400);
}

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

  50% {
    transform: scale(1.05);
  }

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

.controls {
  background: #f8f9fa;
  border-radius: 15px;
  width: 250px;
  padding: 25px;
  box-shadow: 0 4px 15px #0000001a;
}

.controls h3 {
  color: #2c3e50;
  text-align: center;
  margin-bottom: 20px;
  font-size: 1.3em;
}

#reset-btn {
  color: #fff;
  cursor: pointer;
  background: linear-gradient(135deg, #95a5a6, #7f8c8d);
  border: none;
  border-radius: 8px;
  width: 100%;
  margin-bottom: 25px;
  padding: 12px;
  transition: all .3s;
  font-size: 1em;
  font-weight: bold;
}

#reset-btn:hover {
  background: linear-gradient(135deg, #7f8c8d, #6c7a89);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px #0003;
}

.stats {
  background: #fff;
  border-radius: 8px;
  padding: 15px;
  box-shadow: 0 2px 8px #0000001a;
}

.stats h4 {
  color: #2c3e50;
  text-align: center;
  margin-bottom: 15px;
  font-size: 1.1em;
}

.stats p {
  display: flex;
  color: #34495e;
  justify-content: space-between;
  margin-bottom: 10px;
  font-size: .95em;
}

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

@media (max-width: 1024px) {
  .simulator {
    flex-direction: column;
  }

  .controls {
    width: 100%;
  }

  .elevator-shafts {
    margin-right: 20px;
  }
}

@media (max-width: 768px) {
  .container {
    margin: 10px;
  }

  .simulator {
    padding: 20px;
  }

  .elevator-shaft {
    width: 60px;
  }

  .elevator {
    width: 50px;
    height: 50px;
  }

  .elevator-buttons {
    grid-template-columns: repeat(2, 1fr);
  }

  .floor-btn {
    width: 18px;
    height: 18px;
    font-size: .6em;
  }

  .up-btn, .down-btn {
    width: 35px;
    height: 35px;
    font-size: 1em;
  }
}