/* Стили для кнопок избранного */
.favorite-btn {
    cursor: pointer;
    border: none;
    background: none;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.favorite-btn:hover {
    background-color: rgba(0,0,0,0.05);
}

.favorite-btn.active {
    background-color: rgba(255, 59, 48, 0.1);
}

/* Иконки избранного */
.product-favorite-icon,
.catalog-card__favorite-icon,
.favorite-btn-icon {
    width: 24px;
    height: 24px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    transition: all 0.2s ease;
}

/* Базовая иконка (серое сердце) */
.product-favorite-icon,
.catalog-card__favorite-icon {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%23999"><path d="M16.5 3c-1.74 0-3.41.81-4.5 2.09C10.91 3.81 9.24 3 7.5 3 4.42 3 2 5.42 2 8.5c0 3.78 3.4 6.86 8.55 11.54L12 21.35l1.45-1.32C18.6 15.36 22 12.28 22 8.5 22 5.42 19.58 3 16.5 3zm-4.4 15.55l-.1.1-.1-.1C7.14 14.24 4 11.39 4 8.5 4 6.5 5.5 5 7.5 5c1.54 0 3.04.99 3.57 2.36h1.87C13.46 5.99 14.96 5 16.5 5c2 0 3.5 1.5 3.5 3.5 0 2.89-3.14 5.74-7.9 10.05z"/></svg>');
}

/* Активная иконка (красное сердце) */
.favorite-btn.active .product-favorite-icon,
.favorite-btn.active .catalog-card__favorite-icon {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%23ff3b30"><path d="M12 21.35l-1.45-1.32C5.4 15.36 2 12.28 2 8.5 2 5.42 4.42 3 7.5 3c1.74 0 3.41.81 4.5 2.09C13.09 3.81 14.76 3 16.5 3 19.58 3 22 5.42 22 8.5c0 3.78-3.4 6.86-8.55 11.54L12 21.35z"/></svg>');
}

/* Анимация для активного состояния */
@keyframes favoriteAnimation {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.favorite-btn.active .product-favorite-icon,
.favorite-btn.active .catalog-card__favorite-icon {
    animation: favoriteAnimation 0.3s ease;
}