/* #region :root */
:root {
	/* Colors - Blue */
	--blue100: hsl(200 100 97);
	--blue100-90: hsl(200 100 97 / .9);
	--blue300: hsl(200 90 70);
	--blue500: hsl(200 70 40);
	--blue700: hsl(200 100 30);
	--blue700-70: hsl(200 100 30 / .7);
	--blue700-95: hsl(200 100 30 / .95);
	--blue900: hsl(200 100 15);
	/* Colors - Grey */
	--grey100: hsl(210 15 97);
	--grey300: hsl(210 10 88);
	--grey500: hsl(210 5 70);
	--grey700: hsl(210 10 40);
	--grey900: hsl(210 15 10);
	/* Fonts */
	--font-sans: "Karla", sans-serif;
	--fz12: 0.75rem;
	--fz14: 0.875rem;
	--fz16: 1rem;
	--fz18: clamp(1rem, 2vw, 1.125rem);
	--fz20: clamp(1.125rem, 2.25vw, 1.25rem);
	--fz24: clamp(1.25rem, 2.625vw, 1.5rem);
	--fz28: clamp(1.5rem, 3.25vw, 1.75rem);
	--fz32: clamp(1.625rem, 3.5vw, 2rem);
	--fz36: clamp(1.75rem, 4vw, 2.25rem);
	--fz40: clamp(1.875rem, 4.5vw, 2.5rem);
	--fz48: clamp(2rem, 5.25vw, 3rem);
	--fz60: clamp(2.25rem, 6.25vw, 3.75rem);
	--fz72: clamp(2.75rem, 7.5vw, 4.5rem);
	--fz96: clamp(3.5rem, 10vw, 6rem);
	/* Utilities */
	--radius: .3rem;
	--transition: .3s;
}

/* #endregion */
/* #region Elements */
* {
	box-sizing: border-box;
	line-height: 1.2;
	margin: 0;
	padding: 0;
}

a {
	color: var(--blue500);
	display: inline-block;
	text-decoration: none;
	text-decoration-color: transparent;
	text-decoration-thickness: 2px;
	text-underline-offset: 4px;
	transition: var(--transition);

	&:hover {
		text-decoration: underline;
	}
}

body {
	color: var(--blue900);
	font-family: var(--font-sans);
}

button {
	background: none;
	border: none;
	color: var(--blue500);
	cursor: pointer;
}

html {
	overflow-y: scroll;
	scroll-behavior: smooth;
}

h1, h2, h3 {
	text-wrap: balance;
}

hr {
	border: 0;
	border-top: 1px dotted var(--blue300);
	margin-block: 3rem;
}

img {
	display: block;
	max-width: 100%;
}

p {
	line-height: 1.6;
	margin-bottom: 1.2em;
}

li {
	list-style: disc !important;
	margin-left: 1em;
	padding: 0 0 .7em .4em;
}

ul {
	margin-block: 2rem;
}

/* #endregion */
/* #region Global */
.btn {
	border-radius: var(--radius);
	letter-spacing: 2px;
	padding: 1.2em 1.7em 1.3em;
	text-transform: uppercase;

	&:hover {
		text-decoration: none;
	}
}

.content {
	margin-inline: auto;
	width: min(85%, 1200px);
}

/* #endregion */
/* #region Nav */
.nav-contain {
	justify-self: end;
}

.nav-grid {
	display: grid;
	grid-auto-flow: column;

	@media (max-width: 1200px) {
		--mobile-menu-width: 60vw;
		align-content: start;
		backdrop-filter: blur(12px);
		background-color: var(--blue700);
		grid-auto-flow: row;
		height: 100vh;
		justify-content: center;
		padding-top: 5rem;
		position: absolute;
		right: 0;
		row-gap: 1vh;
		top: 0;
		translate: var(--mobile-menu-width);
		transition: var(--transition);
		visibility: hidden;
		width: var(--mobile-menu-width);
	}

	@media (max-width: 600px) {
		--mobile-menu-width: 100vw;
	}

	a {
		border-radius: var(--radius);
		font-size: var(--fz14);
		font-weight: 700;
		letter-spacing: 1px;
		line-height: 1;
		padding: .8em 1em;
		text-transform: uppercase;
		transition: var(--transition);

		@media (max-width: 1200px) {
			color: white;
			font-size: var(--fz18);
		}

		&:hover {
			background-color: var(--blue500);
			color: white;
			text-decoration: none;
		}
	}
}

.nav-toggle {
	display: none;

	@media (max-width: 1200px) {
		display: block;
		font-size: var(--fz24);
		text-decoration: none;

		.fa-xmark-large {
			display: none;
		}
	}
}

.nav-open {
	.nav-grid {
		@media (max-width: 1200px) {
			translate: 0;
			visibility: visible;
		}
	}

	.fa-bars {
		@media (max-width: 1200px) {
			display: none;
		}
	}

	.fa-xmark-large {
		@media (max-width: 1200px) {
			color: white;
			display: block !important;
			position: relative;
			/* position: relative here creates stacking context */
			z-index: 10;
		}
	}
}

/* #endregion */
/* #region Header */
.header {
	padding-block: 1.5rem;
	position: fixed;
	width: 100%;
	z-index: 10;

	&.scrolled {
		background-color: white;
		padding-block: 1rem;
	}
}

.header-grid {
	align-items: center;
	display: grid;
	gap: .5rem;
	grid-template-columns: auto 1fr;

	.logo {
		width: 250px;

		@media (max-width: 900px) {
			width: 150px;
		}

		@media (max-width: 400px) {
			width: 100px;
		}

		&.scrolled {
			width: 180px;
		}
	}
}

/* #endregion */
/* #region Footer */
.footer {
	background-color: var(--blue900);
	color: var(--blue100);
	padding-block: 5rem;
	text-align: center;

	a {
		color: var(--blue300);
		display: block;
		margin-inline: auto;
		max-width: max-content;

		&:hover {
			color: white;
		}
	}

	img {
		margin: 0 auto 1rem;
		opacity: .3;
		width: 150px;
	}
}

/* #endregion */
/* #region Hero */
.hero {
	background: linear-gradient(to bottom, var(--blue100), transparent, var(--blue700-70) 50%), url("https://ripcord.sirv.com/FDA/fdaregs/shutterstock_1924512566.jpg") center/cover no-repeat;
	color: white;
	font-size: var(--fz20);
	min-height: 90vh;
	padding-block: 30vh 5vh;

	@media (max-width: 400px) {
		padding-top: 6rem;
	}

	h1 {
		font-size: var(--fz72);
		font-weight: 600;
		letter-spacing: -3px;
		line-height: 1.1;
		margin-bottom: .2em;
		max-width: 25ch;
	}

	p {
		font-size: var(--fz24);
		line-height: 1.4;
		margin-bottom: 3em;
		max-width: 60ch;
	}

	.btn {
		background-color: var(--blue700);
		border: 2px solid var(--blue300);
		color: white;
		font-size: var(--fz16);
		font-weight: 700;
		margin-top: 1.5rem;

		&:hover {
			background-color: var(--blue100);
			color: var(--blue700);
		}
	}
}

/* #endregion */
/* #region Home-Intro */
.home-intro {
	background: linear-gradient(to right, var(--blue100-90), var(--blue100-90)), url("https://ripcord.sirv.com/FDA/fdaregs/iStock-1136884343.jpg") center/cover no-repeat white;
	padding-block: 5rem;

	h2 {
		font-size: var(--fz20);
		font-weight: 700;
		margin-bottom: .5em;
	}

	p {
		font-size: var(--fz24);
	}
}

.home-intro-grid {
	display: grid;
	gap: 2rem;
	grid-template-columns: repeat(4, auto);

	@media (max-width: 1200px) {
		grid-template-columns: auto auto;
	}

	@media (max-width: 600px) {
		grid-template-columns: auto;
	}

	p {
		font-size: var(--fz16);
	}
}

/* #endregion */
/* #region Sub */
.sub {
	background: linear-gradient(to right, var(--blue100-90), var(--blue100-90)), url("https://ripcord.sirv.com/FDA/fdaregs/iStock-1136884343.jpg") center/cover no-repeat white;
	min-height: 80vh;
	padding-block: 8rem 5rem;

	h1 {
		font-size: var(--fz36);
		font-weight: 600;
		letter-spacing: -1px;
		margin-bottom: .8em;
	}

	h2 {
		font-size: var(--fz24);
		font-weight: 500;
		margin-block: 1.5em .2em;
	}

	h3 {
		font-size: var(--fz18);
		font-weight: 500;
		margin-block: .8em .4em;
	}
}

.sub-about-grid {
	display: grid;
	gap: 1rem 5rem;
	grid-template-columns: auto auto;

	@media (max-width: 900px) {
		grid-template-columns: auto;
	}
}

/* #endregion */