/* ===== НАСТРОЙКИ ===== */
:root {
    /* 1. Размер шрифта */
    --tg-font-size: 20px;
    --tg-font-size-mobile: 13px;
    
    /* 2. Форма баннера */
    --tg-border-radius: 30px;    /* Закругление баннера */
    --tg-width: 280px;           /* Ширина раскрытого баннера */
    
    /* 3. Цвета */
    --tg-bg-color: #BB2532;      /* Фон кнопки и баннера */
    --tg-text-color: #FFFFFF;    /* Цвет текста */
    --tg-icon-color: #FFFFFF;    /* Цвет иконки Telegram */
    --tg-close-color: #FFFFFF;   /* Цвет крестика */
    
    /* 4. Тень */
    --tg-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}
/* ====================== */

.tg-banner {
    position: fixed;
    bottom: 30px;
    right: 100px;
    z-index: 1000;
    display: flex;
    align-items: center;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    
    width: 60px;
    height: 60px;
    background: var(--tg-bg-color);
    border-radius: 50%;
    box-shadow: var(--tg-shadow);
    padding: 0;
    justify-content: center;
}

.tg-banner.expanded {
    width: var(--tg-width);
    height: auto;
    min-height: 60px;
    border-radius: var(--tg-border-radius);
    padding: 18px 25px 18px 20px;
    justify-content: flex-start;
}

.tg-banner__content {
    display: flex;
    align-items: center;
    width: 100%;
}

.tg-banner__icon {
    flex-shrink: 0;
    width: 70px;
    height: 70px;
    fill: var(--tg-icon-color);
    transition: transform 0.3s ease;
}

.tg-banner.expanded .tg-banner__icon {
    width: 28px;
    height: 28px;
    margin-right: 12px;
}

.tg-banner__text {
    color: var(--tg-text-color);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: var(--tg-font-size);
    font-weight: 500;
    line-height: 1.4;
    
    opacity: 0;
    max-width: 0;
    overflow: hidden;
    white-space: nowrap;
    transition: opacity 0.4s ease 0.1s, max-width 0.4s ease 0.1s;
}

.tg-banner.expanded .tg-banner__text {
    opacity: 1;
    max-width: 200px;
    white-space: normal;
}

.tg-banner__close {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    opacity: 0;
    visibility: hidden;
    cursor: pointer;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tg-banner.expanded .tg-banner__close {
    opacity: 0.5;
    visibility: visible;
}

.tg-banner__close:hover {
    opacity: 1;
}

.tg-banner__close::before,
.tg-banner__close::after {
    content: '';
    position: absolute;
    width: 14px;
    height: 2px;
    background: var(--tg-close-color);
    border-radius: 1px;
}

.tg-banner__close::before {
    transform: rotate(45deg);
}

.tg-banner__close::after {
    transform: rotate(-45deg);
}

@media (max-width: 768px) {
    .tg-banner {
        bottom: 20px;
        right: 20px;
        width: 56px;
        height: 56px;
    }
    
    .tg-banner.expanded {
        width: calc(var(--tg-width) - 20px);
        padding: 16px 22px 16px 18px;
    }
    
    .tg-banner__text {
        font-size: var(--tg-font-size-mobile);
    }
}

@media (max-width: 480px) {
    .tg-banner.expanded {
        width: calc(var(--tg-width) - 40px);
        padding: 14px 20px 14px 16px;
    }
}