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

body {
  display: flex;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  justify-content: center;
  align-items:  center;
  min-height: 100vh;
  padding: 20px;
  font-family: Segoe UI, Tahoma, Geneva, Verdana, sans-serif;
}

.container {
  display: flex;
  flex-direction: column;
  align-items:  center;
  gap: 20px;
}

h1 {
  color: #e94560;
  text-shadow: 2px 2px 4px #0000004d;
  font-size: 2.5rem;
}

.building {
  display: flex;
  position: relative;
  background: linear-gradient(#2d2d44 0%, #1a1a2e 100%);
  border: 4px solid #e94560;
  border-radius: 10px;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
}

.floor-row {
  display: flex;
  position: relative;
  background: #ffffff0d;
  border-radius: 8px;
  align-items:  center;
  gap: 10px;
  padding: 8px 15px;
}

.floor-number {
  display: flex;
  color: #fff;
  background: #0f3460;
  border: 2px solid #e94560;
  border-radius: 50%;
  justify-content: center;
  align-items:  center;
  width: 40px;
  height: 40px;
  font-size: 1rem;
  font-weight: bold;
}

.floor-buttons {
  display: flex;
  gap: 8px;
}

.floor-btn {
  color: #e94560;
  cursor: pointer;
  background: linear-gradient(145deg, #1a1a2e, #16213e);
  border: 2px solid #e94560;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  transition: all .3s;
  font-size: 1.2rem;
  font-weight: bold;
  box-shadow: 0 4px 6px #0000004d;
}

.floor-btn:hover:not(:disabled) {
  transform: scale(1.1);
  box-shadow: 0 6px 12px #e9456066;
}

.floor-btn:disabled {
  opacity: .4;
  cursor: not-allowed;
}

.floor-btn.active {
  color: #fff;
  animation: pulse 1s infinite;
  background: #e94560;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 #e94560b3;
  }

  50% {
    box-shadow: 0 0 0 10px #e9456000;
  }
}

.elevator-shaft {
  position: relative;
  overflow: hidden;
  background: #0000004d;
  border-radius: 5px;
  width: 80px;
  height: 100%;
}

.elevator {
  position: absolute;
  display: flex;
  z-index: 10;
  background: linear-gradient(145deg, #e94560, #c73e54);
  border-radius: 8px;
  flex-direction: column;
  justify-content: center;
  align-items:  center;
  gap: 3px;
  width: 70px;
  height: 60px;
  transition: top .5s;
  left: 5px;
  box-shadow: 0 4px 10px #00000080;
}

.elevator-number {
  color: #fff;
  font-size: .9rem;
  font-weight: bold;
}

.elevator-destination {
  color: #fff;
  background: #0000004d;
  border-radius: 4px;
  padding: 2px 6px;
  font-size: .7rem;
}

.elevator-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  padding: 5px;
}

.elevator-floor-btn {
  color: #fff;
  cursor: pointer;
  background: #ffffff4d;
  border: none;
  border-radius: 3px;
  width: 18px;
  height: 18px;
  transition: all .2s;
  font-size: .5rem;
}

.elevator-floor-btn:hover {
  background: #ffffff80;
}

.elevator-floor-btn.active {
  color: #e94560;
  background: #fff;
  font-weight: bold;
}

.elevator-idle {
  background: linear-gradient(145deg, #4ecca3, #3db892);
}

.elevator-moving {
  background: linear-gradient(145deg, #e94560, #c73e54);
}

.controls {
  background: #ffffff0d;
  border: 2px solid #e94560;
  border-radius: 10px;
  padding: 20px 30px;
}

.controls h2 {
  color: #fff;
  margin-bottom: 15px;
  font-size: 1.5rem;
}

#resetBtn {
  color: #fff;
  cursor: pointer;
  background: linear-gradient(145deg, #e94560, #c73e54);
  border: none;
  border-radius: 25px;
  padding: 12px 30px;
  transition: all .3s;
  font-size: 1rem;
  font-weight: bold;
  box-shadow: 0 4px 10px #e9456066;
}

#resetBtn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 15px #e9456099;
}

#resetBtn:active {
  transform: translateY(0);
}

.status-panel {
  background: #ffffff0d;
  border: 2px solid #0f3460;
  border-radius: 10px;
  margin-top: 10px;
  padding: 15px 20px;
}

.status-panel h3 {
  color: #4ecca3;
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.status-item {
  color: #fff;
  margin: 5px 0;
  font-size: .9rem;
}

.status-item span {
  color: #e94560;
  font-weight: bold;
}