body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

footer {
    background-color: #0d6efd;
    color: #fff;
}

/* Telegram кнопка */
.telegram-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #0088cc;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 24px;
    text-decoration: none;
    transition: background-color 0.3s ease;
}
.telegram-btn:hover {
    background-color: #006699;
    color: white;
}

/* Контейнер для секций */
.section-box {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 0 15px rgba(0,0,0,0.05);
}