/* reset */

*,
*::before,
*::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}
h1,
h2,
h3,
h4,
h5,
h6 {
	font-weight: 400;
}

/* set up body */
body {
	font-family: var(--ff-sans-normal);
	font-size: var(--fs-400);
	color: hsl(var(--clr-white));
	background-color: hsl(var(--clr-dark));

	line-height: 1.5;
	min-height: 100vh;
	display: grid;
	grid-template-rows: min-content 1fr;
	overflow-x: hidden;
}

/* image set up */

img,
picture {
	max-width: 100%;
}

/* form elements setup */

input,
button,
textarea,
select {
	font: inherit;
}

/* remove animations for people who've turned them off */
@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
		scroll-behavior: auto !important;
	}
}

/* end reset */

/********* Custom properties ********/

:root {
	--clr-dark: 230 35% 7%;
	--clr-light: 231 77% 90%;
	--clr-white: 0 0% 100%;
	--clr-accent: 197 62% 76%;

	/* font sizes */

	--fs-900: clamp(5rem, 12vw + 1rem, 9.375rem);
	--fs-800: 3.5rem;
	--fs-700: 1.5rem;
	--fs-600: 1rem;
	--fs-500: 1.25rem;
	--fs-400: 0.9375rem;
	--fs-300: 1rem;
	--fs-200: 0.875rem;

	/* font-family */

	--ff-serif: 'Bellefair', serif;
	--ff-sans-cond: 'Barlow Condensed', sans-serif;
	--ff-sans-normal: 'Barlow', sans-serif;
}

@media (min-width: 35em) {
	:root {
		--fs-800: 5rem;
		--fs-700: 2.5rem;
		--fs-600: 1.5rem;
		--fs-500: 1.5rem;
		--fs-400: 1rem;
	}
}

@media (min-width: 45em) {
	:root {
		--fs-800: 6.25rem;
		--fs-700: 3.5rem;
		--fs-600: 2rem;
		--fs-500: 1.75rem;

		--fs-400: 1.125rem;
	}
}

/************* Utility classes **************/
/* general */
.flex {
	display: flex;
	gap: var(--gap, 1rem);
}
.grid {
	display: grid;
	gap: var(--gap, 1rem);
}

.d-block {
	display: block;
}
.flow > * + * {
	margin-top: var(--flow-space, 1rem);
	/* outline: 1px solid red; */
}
.container {
	padding-inline: 2em;
	max-width: 80rem;
	margin-inline: auto;
}
.sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}
/* Hidden skip to content button for screen readers */
.skip-to-content {
	position: absolute;
	z-index: 9999;
	background: hsl(var(--clr-white));
	color: hsl(var(--clr-dark));
	padding: 0.5em 1em;
	margin-inline: auto;
	transform: translateY(-100%);
	transition: transform 250ms ease-in;
}
.skip-to-content:focus {
	transform: translateY(0);
}

/* colors */
.bg-dark {
	background-color: hsl(var(--clr-dark));
}
.bg-accent {
	background-color: hsl(var(--clr-light));
}
.bg-white {
	background-color: hsl(var(--clr-white));
}

.text-dark {
	color: hsl(var(--clr-dark));
}
.text-accent {
	color: hsl(var(--clr-light));
}
.text-white {
	color: hsl(var(--clr-white));
}

/* Typography */
.text-shadow {
	text-shadow: 2px 0px 8px black;
}

.ff-serif {
	font-family: var(--ff-serif);
}
.ff-sans-cond {
	font-family: var(--ff-sans-cond);
}
.ff-sans-normal {
	font-family: var(--ff-sans-normal);
}

.letter-spacing-1 {
	letter-spacing: 4.75px;
}
.letter-spacing-2 {
	letter-spacing: 2.7px;
}
.letter-spacing-3 {
	letter-spacing: 2.35px;
}

.uppercase {
	text-transform: uppercase;
}

.fs-900 {
	font-size: var(--fs-900);
}
.fs-800 {
	font-size: var(--fs-800);
}
.fs-700 {
	font-size: var(--fs-700);
}
.fs-600 {
	font-size: var(--fs-600);
}
.fs-500 {
	font-size: var(--fs-500);
}
.fs-400 {
	font-size: var(--fs-400);
}
.fs-300 {
	font-size: var(--fs-300);
}
.fs-200 {
	font-size: var(--fs-200);
}

.fs-900,
.fs-800,
.fs-700,
.fs-600 {
	line-height: 1.1;
}
.numbered-title {
	font-family: var(--ff-sans-cond);
	font-size: var(--fs-500);
	text-transform: uppercase;
	letter-spacing: 4.72px;
}

.numbered-title span {
	margin-right: 0.5em;
	font-weight: 700;
	color: hsl(var(--clr-white) / 0.25);
}

/************* Components *****************/

.large-button {
	font-size: 2rem;
	position: relative;
	display: inline-grid;
	z-index: 1;
	place-items: center;
	padding: 0 2em;
	border-radius: 50%;
	aspect-ratio: 1;
	text-decoration: none;
}

.large-button::after {
	content: '';
	position: absolute;
	z-index: -1;
	background: hsl(var(--clr-accent) / 0.15);
	width: 100%;
	height: 100%;
	border-radius: 50%;
	opacity: 0;
	transition: opacity 500ms linear, transform 750ms ease-in-out;
}

.large-button:hover::after,
.large-button:focus::after {
	opacity: 1;
	transform: scale(1.5);
}
@media (max-width: 45em) {
	.hide-content {
		display: none;
	}
	.large-button {
		font-size: 1.5rem;
	}
}

/***** Primary Header *****/

.logo {
	margin: 2rem clamp(1.5rem, 5vw, 3.5rem);
	height: 80px;
	aspect-ratio: 1;
}
.primary-header {
	justify-content: space-between;
	align-items: center;
}

.primary-navigation {
	--gap: clamp(1.5rem, 2vw, 4rem);
	--underline-gap: 2rem;
	list-style: none;
	padding: 0;
	margin: 0;
	background: hsl(var(--clr-white) / 0.1);
	backdrop-filter: blur(25px);
}
.primary-navigation a {
	text-decoration: none;
}

.primary-navigation a > span {
	font-weight: 700;
	margin-right: 0.5em;
}
.mobile-nav-toggle {
	display: none;
}

@media (max-width: 35em) {
	.logo {
		height: 50px;
	}
	.primary-navigation {
		--underline-gap: 0.5rem;
		position: fixed;
		z-index: 1000;
		inset: 0 0 0 30%;

		list-style: none;
		padding: min(20rem, 10vh) 2rem;
		margin: 0;
		flex-direction: column;
		transform: translateX(100%);
		transition: transform 250ms ease-in-out;
	}
	.primary-navigation[data-visible='true'] {
		transform: translateX(0);
	}

	.primary-navigation.underline-indicators > .active {
		border: 0;
	}
	.mobile-nav-toggle {
		display: block;
		position: absolute;
		z-index: 2000;
		right: 1rem;
		top: 2rem;
		background: transparent;
		border: none;
		background-image: url(../assets/shared/icon-hamburger.svg);
		background-repeat: no-repeat;
		width: 1.5rem;
		aspect-ratio: 1;
	}
	.mobile-nav-toggle[aria-expanded='true'] {
		background-image: url(../assets/shared/icon-close.svg);
	}
}
@media (min-width: 35em) {
	.primary-navigation {
		padding-inline: clamp(3rem, 10vw, 7rem);
	}
}
@media (min-width: 35em) and (max-width: 45em) {
	.primary-navigation a > span {
		display: none;
	}
}
@media (min-width: 45em) {
	.primary-header::after {
		content: '';
		display: block;
		position: relative;
		height: 1px;
		width: 100%;
		background: hsl(var(--clr-white) / 0.5);
		order: 1;
		margin-right: -3rem;
	}
	nav {
		order: 2;
	}
	.primary-navigation {
		margin-block: 2rem;
	}
}

.underline-indicators > * {
	cursor: pointer;
	padding: var(--underline-gap, 0.5rem) 0;
	border: 0;
	border-bottom: 0.2rem solid hsl(var(--clr-white) / 0);
}
.underline-indicators > li:hover,
.underline-indicators > li:focus {
	border-color: hsl(var(--clr-white) / 0.25);
}

.underline-indicators > .active,
.underline-indicators > [aria-selected='true'] {
	color: hsl(var(--clr-white) / 1);
	border-color: hsl(var(--clr-white) / 1);
}

.tab-list {
	--gap: 2rem;
}
.tab-list > button {
	background: transparent;
}
.dot-indicators > * {
	cursor: pointer;
	border: 0;
	border-radius: 50%;
	aspect-ratio: 1;
	padding: 0.5em;
	background-color: hsl(var(--clr-white) / 0.25);
}

.dot-indicators > button:hover,
.dot-indicators > button:focus {
	background-color: hsl(var(--clr-white) / 0.5);
}
.dot-indicators > [aria-selected='true'] {
	background-color: hsl(var(--clr-white) / 1);
}

.numbered-indicators > * {
	width: 60px;
	font-family: var(--ff-serif);
	font-size: var(--fs-500);
	border: 1px solid hsl(var(--clr-white) / 0.25);
	border-radius: 50%;
	background-color: var(--clr-dark);
	color: var(--clr-white);
	aspect-ratio: 1;
	padding: 0;
}

.numbered-indicators > button:hover,
.numbered-indicators > button:focus {
	border-color: hsl(var(--clr-white) / 0.5);
}
.numbered-indicators > [aria-selected='true'] {
	color: hsl(var(--clr-dark));
	background-color: hsl(var(--clr-white) / 1);
}

/****************** Landing page *****************/

/* header */

body {
	background-repeat: no-repeat;
	background-size: cover;
}

.home {
	background-image: url(../assets/home/backround-mobile.jpg);
	background-position: bottom center;
}
.destination {
	background-image: url(../assets/destination/background-destination-mobile.jpg);
}
.crew {
	background-image: url(../assets/crew/background-crew-mobile.jpg);
}
.tech {
	background-image: url(../assets/technology/background-technology-mobile.jpg);
}
@media (min-width: 35em) {
	.home {
		background-image: url(../assets/home/background-tablet.jpg);
	}
	.destination {
		background-image: url(../assets/destination/background-destination-tablet.jpg);
	}
	.crew {
		background-image: url(../assets/crew/background-crew-tablet.jpg);
	}
	.tech {
		background-image: url(../assets/technology/background-technology-tablet.jpg);
	}
}
@media (min-width: 45em) {
	.home {
		background-image: url(../assets/home/Untitled\ design.jpg);
	}
	.destination {
		background-image: url(../assets/destination/background-destination-desktop.jpg);
	}
	.crew {
		background-image: url(../assets/crew/background-crew-desktop.jpg);
	}
	.tech {
		background-image: url(../assets/technology/background-technology-desktop.jpg);
	}
}

/****************** Layout  ********************/

.grid-container {
	text-align: center;
	display: grid;
	place-items: center;
	padding-inline: 1rem;
	padding-bottom: 3rem;
}

.grid-container * {
	max-width: 50ch;
}
.grid-container--technology h2 {
	max-width: 70ch;
}
.numbered-title {
	grid-area: title;
}
/* Destination Layout */

.grid-container--destination {
	--flow-space: 2rem;
	grid-template-areas:
		'title'
		'image'
		'tabs'
		'content';
}

.grid-container--destination > img {
	grid-area: image;
	max-width: 55%;
}
.grid-container--destination > .tab-list {
	grid-area: tabs;
}
.grid-container--destination > .destination-info {
	grid-area: content;
}
.destination-meta {
	flex-direction: column;
	align-items: center;
	border-top: 1px solid hsl(var(--clr-white) / 0.15);
	padding-top: 2.5rem;
	margin-top: 2.5rem;
}

/* Crew Layout  */

.grid-container--crew {
	--flow-space: 1rem;
	grid-template-areas:
		'title'
		'image'
		'tabs'
		'content';
}
.grid-container--crew > img {
	grid-area: image;
	max-width: 45%;
	border-bottom: 1px solid hsl(var(--clr-white) / 0.5);
	/* align-self: center; */
}
.grid-container--crew > .dot-indicators {
	grid-area: tabs;
}
.grid-container--crew > .crew-info {
	padding-top: 2rem;
	grid-area: content;
}
.crew-info h2 {
	color: hsl(var(--clr-white) / 0.5);
}

/* Technology layout */

.grid-container--technology {
	--flow-space: 1rem;
	grid-template-areas:
		'title'
		'image'
		'tabs'
		'content';
	padding-inline: 0;
}
.grid-container--technology > img {
	grid-area: image;

	max-width: 100%;

	/* align-self: center; */
}

.grid-container--technology > .numbered-indicators {
	grid-area: tabs;
}

.grid-container--technology > .tech-info {
	grid-area: content;
}

@media (min-width: 35em) {
	.numbered-title {
		justify-self: start;
		padding-inline-start: 3rem;
	}
	.destination-meta {
		flex-direction: row;
		justify-content: space-evenly;
	}
	.grid-container--crew {
		padding-bottom: 0;

		grid-template-areas:
			'title'
			'content'
			'tabs'
			'image';
	}

	.grid-container--crew img {
		max-width: 60%;
	}
}
@media (min-width: 45em) {
	.grid-container {
		text-align: left;
		column-gap: var(--container-gap, 1rem);
		grid-template-columns: minmax(1rem, 1fr) repeat(2, minmax(0, 40rem)) minmax(
				1rem,
				1fr
			);
	}
	.grid-container--home > *:first-child {
		grid-column: 2;
		justify-self: start;
		padding-bottom: 2rem;
	}
	.grid-container--home > *:last-child {
		grid-column: 3;
		padding-bottom: 6rem;
	}
	.grid-container--home {
		/* padding-bottom: max(5rem, 20vh); */
		align-items: end;
		/* justify-items: start; */
	}
	/* .grid-container--home > div {
		border: 5px solid greenyellow;
	} */
	.grid-container--destination {
		/* justify-items: start; */
		--flow-space: 1rem;
		grid-template-areas:
			'.title title .'
			'.image tabs .'
			'.image content .';
	}
	.grid-container--destination > img {
		max-width: 100%;
	}
	.destination-meta {
		--gap: min(8vw, 6rem);
		justify-content: start;
	}

	.grid-container--crew {
		grid-template-areas:
			'.title title .'
			'.content image .'
			'.tabs image .';
	}

	.grid-container--crew > img {
		margin-top: 0;
		max-width: 100%;
		align-self: end;
	}
	.grid-container--crew > .dot-indicators {
		justify-self: start;
		padding-inline-start: 3rem;
	}
	.grid-container--crew > .crew-info {
		padding-top: 0;
	}

	.grid-container--technology {
		grid-template-columns: minmax(1rem, 10rem) minmax(0, 30rem) minmax(0, 30rem) minmax(
				1rem,
				1fr
			);

		grid-template-areas:
			'title title title .'
			'tabs content image .'
			'tabs content image .';
	}

	.grid-container--technology > .numbered-indicators {
		display: grid;
	}
	.grid-container--technology > img {
		grid-column: span 2;
		justify-self: end;
	}
}