body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-image: url('../img_vkc/vkc_fon.jpg');
}

.container {
    width: 100%;
    max-width: 800px;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.organization-title {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 18px;
    text-transform: uppercase;
    line-height: 1.4;
}

h2 {
    text-align: center;
    color: #333;
    margin-bottom: 10px;
    font-size: 24px;
}

h3 {
    text-align: center;
    color: #444;
    margin-bottom: 30px;
    font-size: 20px;
}

.room-option {
    display: block;
    padding: 15px;
    margin-bottom: 15px;
    background-color: #f0f0f0;
    border: 2px solid #ddd;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 16px;
}

.room-option:hover {
    background-color: #e0e0e0;
}

.room-option.selected {
    background-color: #4a76a8;
    color: white;
    border-color: #3a5f8a;
}

.enter-button {
    display: block;
    width: 100%;
    padding: 15px;
    margin-top: 20px;
    background-color: #2ecc71;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.enter-button:hover {
    background-color: #27ae60;
}

.enter-button:disabled {
    background-color: #95a5a6;
    cursor: not-allowed;
}