body {
    font-family: sans-serif;
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 960px;
    margin: auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1, h2, h3 {
    color: #555;
}

form label {
    display: block;
    margin-top: 10px;
    font-weight: bold;
}

form input, form textarea {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

form button {
    background-color: #007bff;
    color: #fff;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 15px;
    font-size: 16px;
}

form button:hover {
    background-color: #0056b3;
}

.message {
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 4px;
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.room-card-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.room-card {
    background: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
}

.room-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid #ddd;
}

.room-card-content {
    padding: 15px;
}

.room-card-content h3 {
    margin: 0 0 10px;
}

.room-detail-btn {
    display: inline-block;
    background: #28a745;
    color: #fff;
    padding: 8px 12px;
    text-decoration: none;
    border-radius: 4px;
    margin-top: 10px;
}

.room-detail-btn:hover {
    background: #218838;
}

.room-detail-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
    margin-bottom: 20px;
}

.room-detail-gallery img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 4px;
}