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

body {
  color: #fff;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  min-height: 100vh;
  font-family: Segoe UI, Tahoma, Geneva, Verdana, sans-serif;
}

.info-bar {
  display: flex;
  background: #0000004d;
  border-bottom: 1px solid #ffffff1a;
  justify-content: center;
  gap: 2rem;
  padding: 1rem;
}

.info-item {
  color: #a0a0a0;
  font-size: .9rem;
}

.info-item strong {
  color: #4fc3f7;
}

.simulator {
  display: flex;
  justify-content: center;
  padding: 2rem;
}

.building {
  position: relative;
  background: linear-gradient(#2d2d44 0%, #1f1f2e 100%);
  border: 3px solid #444;
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 10px 40px #00000080;
}

#floors-container {
  display: flex;
  position: relative;
  z-index: 1;
  flex-direction: column;
}

.floor {
  display: flex;
  position: relative;
  border-bottom: 2px solid #333;
  align-items:  center;
  height: 80px;
}

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

.floor-number {
  text-align: center;
  color: #4fc3f7;
  width: 60px;
  font-size: 1.5rem;
  font-weight: bold;
}

.floor-buttons {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding: .5rem;
}

.floor-btn {
  cursor: pointer;
  border: none;
  border-radius: 4px;
  width: 40px;
  height: 30px;
  transition: all .2s;
  font-size: 1.2rem;
}

.floor-btn.up {
  color: #fff;
  background: #2e7d32;
}

.floor-btn.up:hover {
  background: #4caf50;
  transform: scale(1.05);
}

.floor-btn.up.active {
  background: #ff9800;
  box-shadow: 0 0 10px #ff9800;
}

.floor-btn.down {
  color: #fff;
  background: #c62828;
}

.floor-btn.down:hover {
  background: #ef5350;
  transform: scale(1.05);
}

.floor-btn.down.active {
  background: #ff9800;
  box-shadow: 0 0 10px #ff9800;
}

.floor-btn:disabled {
  opacity: .3;
  cursor: not-allowed;
}

.shaft-area {
  display: flex;
  gap: 10px;
  margin-left: 20px;
}

.elevator-shaft {
  position: relative;
  background: #0000004d;
  border: 1px solid #555;
  border-radius: 4px;
  width: 60px;
  height: 100%;
}

.elevator {
  position: absolute;
  display: flex;
  background: linear-gradient(#ffd54f 0%, #ffb300 100%);
  border: 2px solid #ff8f00;
  border-radius: 4px;
  flex-direction: column;
  justify-content: flex-end;
  align-items:  center;
  width: 56px;
  height: 76px;
  transition: bottom .5s ease-in-out;
  left: 2px;
  box-shadow: 0 4px 8px #0000004d;
}

.elevator-doors {
  display: flex;
  overflow: hidden;
  width: 100%;
  height: 60px;
}

.door {
  background: linear-gradient(#757575 0%, #424242 100%);
  width: 50%;
  height: 100%;
  transition: transform .3s;
}

.door.left {
  transform-origin: left;
}

.door.right {
  transform-origin: right;
}

.elevator.open .door.left {
  transform: translateX(-80%);
}

.elevator.open .door.right {
  transform: translateX(80%);
}

.elevator-panel {
  position: absolute;
  color: #4fc3f7;
  background: #333;
  border-radius: 3px;
  padding: 2px 6px;
  font-size: .7rem;
  top: 5px;
  left: 50%;
  transform: translateX(-50%);
}

.elevator-id {
  position: absolute;
  color: #333;
  font-size: .7rem;
  font-weight: bold;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
}

.elevator-panel-inner {
  position: fixed;
  display: none;
  z-index: 1000;
  background: #000000e6;
  border: 2px solid #4fc3f7;
  border-radius: 8px;
  min-width: 200px;
  padding: 1.5rem;
}

.elevator-panel-inner.visible {
  display: block;
}

.panel-title {
  text-align: center;
  color: #4fc3f7;
  margin-bottom: 1rem;
  font-size: 1rem;
}

.panel-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .5rem;
}

.panel-btn {
  color: #fff;
  cursor: pointer;
  background: #333;
  border: none;
  border-radius: 50%;
  width: 45px;
  height: 45px;
  transition: all .2s;
  font-size: 1rem;
}

.panel-btn:hover {
  background: #4fc3f7;
  transform: scale(1.1);
}

.panel-btn.selected {
  background: #ff9800;
  box-shadow: 0 0 10px #ff9800;
}

.close-panel {
  position: absolute;
  color: #fff;
  cursor: pointer;
  background: none;
  border: none;
  font-size: 1.2rem;
  top: 5px;
  right: 10px;
}

.status-bar {
  position: fixed;
  display: flex;
  background: #000c;
  justify-content: center;
  gap: 2rem;
  padding: 1rem;
  bottom: 0;
  left: 0;
  right: 0;
}

.elevator-status {
  display: flex;
  background: #ffffff1a;
  border-radius: 4px;
  flex-direction: column;
  align-items:  center;
  padding: .5rem 1rem;
}

.elevator-status .id {
  color: #4fc3f7;
  font-weight: bold;
}

.elevator-status .floor {
  font-size: 1.5rem;
}

.elevator-status .state {
  color: #aaa;
  font-size: .8rem;
}

.elevator-status .direction {
  font-size: 1rem;
}

.elevator-status .direction.up {
  color: #4caf50;
}

.elevator-status .direction.down {
  color: #ef5350;
}

.elevator-status .direction.idle {
  color: #888;
}