* {
	padding: 0px;
	margin: 0px;
	border: none;
}
a, a:hover {
	text-decoration: none;
}
a, a:link, a:visited  {
    text-decoration: none;
    color: #0E2447;
}

body {
	background: linear-gradient(white, #DFEBFF, #DFEBFF);
	color: #0E2447;

	font-family: Georgia, sans-serif;
}
.header1 {
	display: flex;
	flex-direction: row;
	justify-content: space-between;

	margin: 10px;

}
.logo {
	margin: 10px 10px;
}
#logo_id  {
	width: 70px;
	height: auto;
	border-radius: 50px;
}
.nav {
	display: flex;
	font-size: 20px;
	margin: 5px 0px 5px 180px;

}
.header_aboute {
	padding: 30px 30px;
}
.header_solutions {
	padding: 30px 30px;
}
.header_contacts {
	padding: 30px 30px;
}

.btg_text {
	font-size: 100px;
	margin: 7% 50px 0px 50px;
	opacity: 0.9;
	
}
.integrator_text {
	font-size: 32px; 
	margin: 0px 60px;
	opacity: 0.9;
	
}
.presentation {
	margin: 23px 20px 10px -120px;
	font-size: 24px; 

	
}
#pres {
    color: white;
    background-color: #0E2447;
    opacity: 0.8;
    text-decoration: none;
    font-size: 20px;
    border: 1px solid #3B447Fe;
    padding: 10px 20px 14px 20px;
    border-radius: 10px;
    transition: 0.3s;
}

#pres:hover {
    background-color: whitesmoke;
    color: #3B447F;
}

.header3 {
	margin: 7% 30px 5% 65px;
	display: flex;
	flex-direction: column;
	justify-content: space-around;
	font-size: 18px;
	text-align: left;
	font-weight: 500;
	line-height: 20px;
}
.header3_text {
	border-radius: 30px;
	background-color: #0E2447;
	opacity: 0.8;
	width: 200px;
	height: 150px;
	padding: 20px;
	color: white;
}

/* ======== Адаптив для смартфонов ======== */
@media (max-width: 768px) {

	.header1 {
		flex-direction: column;
		align-items: center;
		margin: 0;
	}

	.logo {
		margin: 10px auto;
	}

	#logo_id {
		width: 60px;
		border-radius: 50%;
	}

	.nav {
		flex-direction: column;
		align-items: center;
		margin: 0;
		gap: 10px;
		font-size: 18px;
	}

	.header_aboute,
	.header_solutions,
	.header_contacts {
		padding: 10px 0;
	}

	.presentation {
		margin: 15px 0;
		font-size: 20px;
	}

	#pres {
		font-size: 18px;
		padding: 8px 16px;
	}

	/* Заголовок */
	.btg_text {
		font-size: 42px;
		margin: 40px 10px 10px 10px;
		text-align: center;
	}

	.integrator_text {
		font-size: 20px;
		margin: 0 20px;
		text-align: center;
	}

	/* Блок преимуществ */
	.header3 {
		flex-direction: column;
		align-items: center;
		gap: 15px;
		margin: 60% 10px 40px 10px;
	}

	.header3_text {
		width: 90%;
		height: auto;
		padding: 15px;
		font-size: 16px;
		border-radius: 20px;
	}

	body {
		background: linear-gradient(white, #DFEBFF);
	}

}