* {
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  margin: 0;
  background: #2b211c;
  color: #fff;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  background: linear-gradient(90deg, #4b2e22, #7b5b42);
  border-bottom: 3px solid #d6b078;
}

h1 {
  margin: 0;
  font-size: 34px;
}

header p {
  margin: 3px 0 0;
  color: #ffe2af;
}

.stats {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.stats span {
  background: rgba(255,255,255,0.15);
  padding: 10px 12px;
  border-radius: 12px;
}

main {
  display: grid;
  grid-template-columns: 140px 1fr 330px;
  height: calc(100vh - 88px);
}

aside {
  background: #1f1713;
  padding: 15px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

button {
  border: 0;
  border-radius: 12px;
  padding: 13px;
  font-size: 15px;
  background: #f5dfbd;
  color: #2b211c;
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  background: #fff0d4;
  transform: scale(1.02);
}

.hotel-view {
  padding: 20px;
  background: radial-gradient(circle at center, #7a604b, #3b2b23);
  overflow: auto;
}

.floor-label {
  font-size: 22px;
  font-weight: bold;
  margin-bottom: 15px;
}

.lobby {
  position: relative;
  min-height: 260px;
  border-radius: 22px;
  background: linear-gradient(135deg, #cdb89b, #8c745d);
  border: 4px solid #5a3e2e;
  margin-bottom: 18px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.35);
}

.desk, .sofa, .plant, .guest {
  position: absolute;
  border-radius: 14px;
  text-align: center;
}

.desk {
  right: 35px;
  top: 65px;
  width: 150px;
  padding: 22px 10px;
  background: #5b321f;
  border: 3px solid #32180e;
}

.desk span {
  color: #aef0ae;
}

.sofa {
  left: 50px;
  top: 75px;
  width: 155px;
  padding: 35px 10px;
  background: #775945;
}

.plant {
  left: 245px;
  top: 50px;
  font-size: 50px;
}

.guest {
  font-size: 46px;
}

.guest1 {
  left: 315px;
  top: 130px;
}

.guest2 {
  right: 230px;
  top: 140px;
}

.rooms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 14px;
}

.room-card {
  background: #f7e6cc;
  color: #2b211c;
  border-radius: 16px;
  padding: 14px;
  min-height: 145px;
  border: 3px solid #b99061;
}

.room-card h3 {
  margin: 0 0 8px;
}

.room-card .occupied {
  color: #1f7d38;
  font-weight: bold;
}

.room-card .dirty {
  color: #b33939;
  font-weight: bold;
}

.panel {
  background: #fff5e7;
  color: #2b211c;
  padding: 20px;
  overflow-y: auto;
  border-left: 4px solid #d6b078;
}

.panel h2 {
  margin-top: 0;
}

.card {
  background: #fff;
  border-radius: 14px;
  padding: 14px;
  margin: 12px 0;
  border: 1px solid #e3cda9;
}

.action {
  width: 100%;
  margin-top: 8px;
  background: #7b5b42;
  color: white;
}

.warning {
  color: #a33;
  font-weight: bold;
}

.success {
  color: #167a35;
  font-weight: bold;
}

@media (max-width: 900px) {
  main {
    grid-template-columns: 1fr;
    height: auto;
  }

  aside {
    flex-direction: row;
    overflow-x: auto;
  }

  .panel {
    border-left: 0;
  }

  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}