F_A_8_Exchange_app/src/style/components/_header.scss

.header {
	display:flex;

	&__logo {
		width: 20%;
		margin: 0 auto;
		display: flex;
		justify-content: center;
		align-items: center;	
	}

	&__searchLine{
		width: 60%;
		display: flex;
		justify-content: center;
		align-items: center;
	}

	&__auth {
		width: 20%;
		display: flex;
		justify-content: center;
		align-items: center;
		
		&__container{
			
			display: flex;
			justify-content: center;
			align-items: center;

			.avatar{
				padding-right: 5px;
			}

			.text{
				color: $el-color;
				font-size: 18px;
			}
		}
	}
}

.searchInput::-webkit-input-placeholder, .button {
    font-family: 'roboto', sans-serif;
    transition: all 0.3s ease-in-out;
}
  
.searchInput{   
	margin: 40px 25px;
	width: 75%;
	display: block;
	border: none;
	padding: 10px 0;
	border-bottom: solid 1px $color;
	transition: all 0.3s cubic-bezier(.64,.09,.08,1);
	background: linear-gradient(to bottom, rgba(255,255,255,0) 96%, $color 4%);
	background-position: -700px 0;
	background-size: 700px 100%;
	background-repeat: no-repeat;
	color: darken($color,1%);
	
	&:focus {
		box-shadow: none;
		outline: none;
		background-position: 0 0;
		&::-webkit-input-placeholder {
			text-indent: 700px; transition: text-indent 0.5s ease;
		}
	}
}
.searchBtn{
    border:none;
    outline: none;
    border: 0px;
    cursor: pointer;
	color: $primary;
	transition: .3s ease-out;
	
	&:hover,
	&:focus { 
    	transform: scale(1.125);
    
    	.icon {
	  		transform: scale(1.25); 
		} 
	} 
        // Display/alignment
        display: flex;
        justify-content: center;
        align-items: center;
        align-content: center;
        
        // Sizing
        width: 68px;
        height: 68px;
        border-radius: 34px;
        
        // Style
        background-color: $white;
        box-shadow:
          0 1px 1px rgba($background-3, .6),
          0 3px 3px rgba($background-3, .4),
          0 8px 16px rgba($background-3, .3);
        
        &:hover,
        &:focus {
          box-shadow:
            0 2px 2px rgba($background-3, .4),
            0 4px 4px rgba($background-3, .3),
            0 12px 32px rgba($background-3, .3); } 
}

.fill-currentcolor {
	fill: currentcolor; 
}
  
.fill-none {
	fill: none; 
}

.icon {
    width: 24px;
    height: 24px;
    transition: .3s ease-out;
        
    @media (min-width: $breakpoint) {
      	width: 32px;
		height: 32px; 
	} 
}