body { font-family: 'Vazirmatn', sans-serif; background-color: #fdfbf7; overflow-x: hidden; }

.nav-link { transition: all 0.3s; position: relative; }
.nav-link.active::after {
    content: ''; position: absolute; bottom: -4px; right: 0;
    width: 100%; height: 2px; background: #10b981;
}

.cart-item { transition: all 0.3s ease; }

.coupon-input {
    background: #f9f8f6;
    border: 2px solid transparent;
    transition: all 0.3s;
}
.coupon-input:focus {
    border-color: #10b981;
    background: white;
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.05);
}

#mobile-menu {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    max-height: 0;
    opacity: 0;
    display: none;
}
#mobile-menu.active {
    display: flex;
    max-height: 500px;
    opacity: 1;
}