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

body {
  display: flex;
  color: #333;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  flex-direction: column;
  align-items:  center;
  min-height: 100vh;
  padding: 20px;
  font-family: Segoe UI, Tahoma, Geneva, Verdana, sans-serif;
}

header {
  text-align: center;
  width: 100%;
  max-width: 900px;
  margin-bottom: 30px;
}

h1 {
  color: #2c3e50;
  text-shadow: 1px 1px 2px #0000001a;
  margin-bottom: 15px;
  font-size: 2.5rem;
}

#model-details {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.model-info-item {
  background: #ffffffb3;
  border-radius: 20px;
  padding: 8px 15px;
  font-size: .9rem;
  box-shadow: 0 2px 5px #0000001a;
}

#building {
  display: flex;
  backdrop-filter: blur(10px);
  background: #fffc;
  border-radius: 15px;
  flex-direction: column-reverse;
  gap: 15px;
  width: 100%;
  max-width: 900px;
  padding: 20px;
  box-shadow: 0 10px 30px #00000026;
}

.floor {
  display: flex;
  background: linear-gradient(to right, #3498db, #2c3e50);
  border-radius: 12px;
  justify-content: space-between;
  align-items:  center;
  padding: 20px;
  transition: transform .3s, box-shadow .3s;
  box-shadow: 0 4px 15px #0000001a;
}

.floor:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px #00000026;
}

.floor-label {
  color: #fff;
  text-shadow: 1px 1px 2px #0000004d;
  background: #0003;
  border-radius: 20px;
  padding: 8px 15px;
  font-size: 1.4rem;
  font-weight: bold;
}

.button-container {
  display: flex;
  gap: 12px;
}

.elevator-button {
  color: #fff;
  cursor: pointer;
  display: flex;
  background: linear-gradient(#3498db, #2980b9);
  border: none;
  border-radius: 30px;
  align-items:  center;
  gap: 5px;
  padding: 10px 20px;
  transition: all .3s;
  font-size: 1rem;
  font-weight: 600;
  box-shadow: 0 4px 6px #0000001a;
}

.elevator-button:hover {
  background: linear-gradient(#3cb0fd, #3498db);
  transform: translateY(-2px);
  box-shadow: 0 6px 8px #00000026;
}

.elevator-button:active {
  transform: translateY(1px);
  box-shadow: 0 2px 4px #0000001a;
}

.elevator-button:disabled {
  cursor: not-allowed;
  box-shadow: none;
  background: linear-gradient(#bdc3c7, #95a5a6);
  transform: none;
}

#elevators {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  width: 100%;
  max-width: 900px;
  margin-top: 40px;
}

.elevator {
  display: flex;
  color: #fff;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #2c3e50 0%, #1a2a3a 100%);
  border: 3px solid #3498db;
  border-radius: 12px;
  flex-direction: column;
  justify-content: center;
  align-items:  center;
  width: 100px;
  height: 140px;
  font-weight: bold;
  box-shadow: 0 8px 20px #0000004d;
}

.elevator:before {
  content: "";
  position: absolute;
  background: #ffffff1a;
  border-bottom: 1px solid #fff3;
  height: 30px;
  top: 0;
  left: 0;
  right: 0;
}

.elevator-label {
  position: absolute;
  z-index: 2;
  font-size: .9rem;
  font-weight: 600;
  top: 5px;
}

.elevator-door {
  position: absolute;
  display: flex;
  z-index: 1;
  background: linear-gradient(to right, #34495e, #2c3e50);
  border: 1px solid #0003;
  justify-content: center;
  align-items:  center;
  width: 50%;
  height: 100%;
  transition: transform .5s ease-in-out;
}

.elevator-door.left {
  border-right: 1px solid #0003;
  left: 0;
  transform: translateX(0);
}

.elevator-door.right {
  border-left: 1px solid #0003;
  right: 0;
  transform: translateX(0);
}

.elevator-door.open {
  transition: transform .5s ease-in-out;
}

.elevator-door.left.open {
  transform: translateX(-100%);
}

.elevator-door.right.open {
  transform: translateX(100%);
}

.elevator-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  z-index: 2;
  gap: 8px;
  width: 100%;
  max-width: 130px;
  margin-top: 35px;
}

.elevator-floor-button {
  color: #fff;
  cursor: pointer;
  background: linear-gradient(#2c3e50, #1a2a3a);
  border: 2px solid #3498db;
  border-radius: 8px;
  padding: 8px;
  transition: all .2s;
  font-size: .9rem;
  font-weight: 600;
  box-shadow: 0 2px 4px #0003;
}

.elevator-floor-button:hover {
  background: linear-gradient(#3498db, #2980b9);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px #0000004d;
}

.elevator-floor-button:active {
  transform: translateY(1px);
  box-shadow: 0 1px 2px #0003;
}

.elevator-floor-button.active {
  background: linear-gradient(#27ae60, #2ecc71);
  border-color: #2ecc71;
  box-shadow: 0 0 15px #2ecc7180;
}

.elevator-floor-button:disabled {
  cursor: not-allowed;
  box-shadow: none;
  background: linear-gradient(#7f8c8d, #95a5a6);
  border-color: #7f8c8d;
  transform: none;
}

.elevator-car {
  position: absolute;
  display: flex;
  color: #2c3e50;
  z-index: 1;
  background: linear-gradient(#7f8c8d, #95a5a6);
  border-radius: 8px;
  justify-content: center;
  align-items:  center;
  width: 80%;
  height: 60px;
  transition: transform 2s ease-in-out;
  font-weight: bold;
  box-shadow: 0 4px 8px #0000004d;
}

@media (max-width: 768px) {
  #building {
    padding: 15px;
  }

  .floor {
    flex-direction: column;
    align-items:  flex-start;
    gap: 15px;
  }

  .button-container {
    align-self:  flex-end;
  }

  #elevators {
    gap: 20px;
  }

  .elevator {
    width: 80px;
    height: 120px;
  }

  h1 {
    font-size: 2rem;
  }

  #model-details {
    flex-direction: column;
    align-items:  center;
    gap: 10px;
  }
}

@media (max-width: 480px) {
  .floor {
    padding: 15px;
  }

  .floor-label {
    font-size: 1.2rem;
  }

  .elevator-button {
    padding: 8px 16px;
    font-size: .9rem;
  }

  #elevators {
    gap: 15px;
  }

  .elevator {
    width: 70px;
    height: 100px;
  }

  .elevator-buttons {
    gap: 5px;
    max-width: 100px;
  }

  .elevator-floor-button {
    padding: 6px;
    font-size: .8rem;
  }
}

.elevator-floor-button:disabled {
  cursor: not-allowed;
  background-color: #222;
}