body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 15px;
    background: #f5f5f5;
}

.title {
    text-align: center;
    margin-bottom: 20px;
}

.menu-gedung {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.btn-gedung {
    padding: 15px 25px;
    background: #2c3e50;
    color: white;
    text-decoration: none;
    border-radius: 8px;
}

.lantai {
    margin-bottom: 25px;
}

.ruang-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 10px;
}

.ruang-box {
    background: white;
    border: 2px solid #333;
    text-align: center;
    padding: 12px 5px;
    text-decoration: none;
    color: black;
    font-weight: bold;
    border-radius: 6px;
}

.ruang-box:hover {
    background: #eaeaea;
}

.detail-ruang {
    background: white;
    padding: 20px;
    border-radius: 10px;
}

.btn-back {
    display: block;
    margin-top: 20px;
    text-align: center;
    text-decoration: none;
    color: white;
    background: #3498db;
    padding: 12px;
    border-radius: 8px;
}