Ucontrol/style.css

:root {
	--color: #1834e9;
}

* {
	box-sizing: border-box;
}

html,
body {
	font-size: 24px;
	line-height: 1.6;
	font-family: "Sora", sans-serif;
	color: #333;
	margin: 0;
}

main.welcome {
	position: absolute;
	top: 0;
	left: 0;
	width: 100vw;
	height: 100vh;

	padding: 48px;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: flex-start;

	color: #ffffff;
	background-color: var(--color);
}

.welcome .title {
	font-size: 128px;
	line-height: 1.2;
	margin: 24px 0;
	font-weight: 800;
	max-width: 100%;
}

.welcome .description {
	font-size: 36px;
}

.welcome .button {
	text-decoration: none;
	display: inline-block;
	background-color: white;
	background-color: #8bebbb;
	color: var(--color);
	margin-top: 64px;
	border-radius: 8px;
	padding: 8px 32px;
	font-size: 18px;
	font-weight: 600;
	font-style: normal;
}

nav {
	display: flex;
	justify-content: flex-end;
	padding: 16px 32px;
}

a {
	color: currentColor;
	text-decoration: none;
	font-style: italic;
}

nav a {
	font-style: normal;
}

nav a + a {
	margin-left: 32px;
}

a.current {
	color: var(--color);
	font-weight: 600;
	position: relative;
}

a.current:after {
	content: "";
	position: absolute;
	display: inline-block;
	width: 100%;
	height: 4px;
	left: 0;
	bottom: -2px;
	background-color: var(--color);
}

header {
	text-align: center;
	padding: 96px 24px;
}

header .title {
	color: var(--color);
	margin: 16px 0;
	font-weight: 800;
}

header .description {
	max-width: 40ch;
	margin: 0 auto;
	color: #999999;
}

main.tips {
	padding: 24px;
	display: flex;
	justify-content: center;
	align-items: flex-start;
	gap: 24px;
}

main.tips .card {
	flex-grow: 0;
	flex-shrink: 0;
	flex-basis: 30%;
	display: inline-block;
	padding: 24px;

	border: 1px solid #f2f5f8;
	box-shadow: 0px 2px 3px rgba(0, 0, 0, 0.2);
	border-radius: 4px;
}

.tips .card .title {
	font-weight: 400;
	font-size: 32px;
	text-align: center;
	color: var(--color);
	margin-bottom: 48px;
}

.card ul {
	padding: 0;
}

.card li {
	color: #333;
	list-style: none;
}

.card li:before {
	content: "—";
	font-weight: 800;
	color: #8bebbb;
	margin-right: 4px;
}

.card li + li {
	margin-top: 24px;
}

main.about {
	margin: 0 auto;
	padding: 24px;
}

main.about p {
	margin: 0 auto;
	text-align: center;
	max-width: 54ch;
}

main.about p + p {
	margin-top: 24px;
}

.big-card {
	margin: 96px auto;
	display: flex;
	align-items: center;
	gap: 24px;
	max-width: 1200px;
}

.big-card > .quote {
	width: 50%;
	font-size: 56px;
	color: var(--color);
	text-align: center;
}

.big-card > img {
	width: 50%;
	max-height: 75vh;
	height: auto;
	object-fit: contain;
}

.switch {
	position: relative;
	display: inline-block;
	width: 60px;
	height: 34px;
}

.switch input {
	opacity: 0;
	width: 0;
	height: 0;
}

.slider {
	position: absolute;
	cursor: pointer;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: #eef1f8;

	border: 1px solid #b6c2e2;
	transition: 0.4s;
}

.slider:before {
	position: absolute;
	content: "";
	height: 25px;
	width: 25px;
	left: 4px;
	bottom: 4px;
	background-color: white;
	transition: 0.4s;
}

input:checked + .slider {
	background-color: var(--color);
}

input:focus + .slider {
	box-shadow: 0 0 1px #b6c2e2;
}

input:checked + .slider:before {
	-webkit-transform: translateX(26px);
	-ms-transform: translateX(26px);
	transform: translateX(26px);
}

/* Rounded sliders */
.slider.round {
	border-radius: 34px;
}

.slider.round:before {
	border-radius: 50%;
}

.more-info {
	font-size: 20px;
	display: inline-block;

	margin-left: auto;
	margin-right: 32px;
	position: relative;
	transition: all 0.4s;

	color: #b6c2e2;
}

.more-info input {
	opacity: 0;
	width: 0;
	height: 0;
}

.more-info span {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	border-radius: 50%;
	text-align: center;
}

.more-info:hover {
	cursor: pointer;
}

.accordion {
	padding: 24px 24px;
	max-width: 1000px;
	margin: 0 auto;
	transition: height 0.4s ease;
}

.accordion .header {
	display: flex;
	align-items: baseline;
}

.accordion + .accordion {
	border-top: 1px solid #d9d9d9;
}

.accordion .header .title {
	margin: 0;
	font-size: 24px;
	font-weight: 600;
}

.accordion .content {
	max-width: 40ch;
	color: #999;
	transition: all 0.4s;
	max-height: 0px;
	overflow: hidden;
}

@media (max-width: 991.98px) {
	html,
	body {
		font-size: 18px;
	}

	nav {
		font-size: 1rem;
		padding: 16px;
	}

	nav a + a {
		margin-left: 16px;
	}

	main.tips {
		display: block;
		padding: 24px;
	}

	.tips .card .title {
		font-size: 24px;
	}

	.tips .card + .card {
		margin-top: 32px;
	}

	.big-card {
		display: block;
		margin: 24px;
	}
	.big-card .quote,
	.big-card img {
		width: 100%;
		max-width: 100%;
		max-height: 100vh;
	}

	.big-card .quote {
		font-size: 32px;
	}
}