.cart-btn-modern {
    background: linear-gradient(135deg, #009640 0%, #5D9C59 100%);
    color: white;
    border: none;
    padding: 14px 20px;
    border-radius: 16px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(0, 150, 64, 0.25);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    min-width: 160px;
}

.cart-btn-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.7s ease;
}

.cart-btn-modern:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 30px rgba(0, 150, 64, 0.4);
    gap: 16px;
}

.cart-btn-modern:hover::before {
    left: 100%;
}

.cart-btn-modern:active {
    transform: translateY(-2px) scale(0.98);
    transition: all 0.1s ease;
}

.cart-btn-modern i {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.cart-btn-modern:hover i {
    transform: rotate(90deg);
}

/* Анимация при нажатии */
@keyframes cartBtnPulse {
    0% { box-shadow: 0 6px 20px rgba(0, 150, 64, 0.25); }
    50% { box-shadow: 0 6px 30px rgba(0, 150, 64, 0.6); }
    100% { box-shadow: 0 6px 20px rgba(0, 150, 64, 0.25); }
}

.cart-btn-modern.added {
    animation: cartBtnPulse 0.5s ease;
    background: #5D9C59 !important;
}

/* Состояние "Добавлено" */
.cart-btn-modern.added i {
    transform: rotate(0deg) !important;
}

/* Вариант для мобильных */
@media (max-width: 768px) {
    .cart-btn-modern {
        padding: 12px 24px;
        font-size: 0.95rem;
        min-width: 140px;
        border-radius: 14px;
    }
}

/* Дополнительные варианты цвета */
.cart-btn-modern.variant-2 {
    background: linear-gradient(135deg, #FF6B6B 0%, #FF8E8E 100%);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.25);
}

.cart-btn-modern.variant-2:hover {
    box-shadow: 0 12px 30px rgba(255, 107, 107, 0.4);
}

.cart-btn-modern.variant-3 {
    background: linear-gradient(135deg, #4ECDC4 0%, #44A08D 100%);
    box-shadow: 0 6px 20px rgba(78, 205, 196, 0.25);
}

.cart-btn-modern.variant-3:hover {
    box-shadow: 0 12px 30px rgba(78, 205, 196, 0.4);
}