/* -----------Custom property----------------*/
:root {
    /* colors */
    --clr-black: 230 35% 7%;
    --clr-grey: 231 77% 90%;
    --clr-white: 0 0% 100%;
    /* font-sizes */
    --fs-900: clamp(5rem, 8vw + 1rem, 9.375rem);
    --fs-800: 3.5rem;
    --fs-700: 1.5rem;
    --fs-600: 1rem;
    --fs-500: 1rem;
    --fs-400: 0.9375rem;
    --fs-300: 1rem;
    --fs-200: 0.875rem;

    /* font-families */
    --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: 1.25rem;
        --fs-400: 1rem;
    }
}

@media (min-width: 45em) {
    :root {
        /* font-sizes */
        --fs-800: 6.25rem;
        --fs-700: 3.5rem;
        --fs-600: 2rem;
        --fs-500: 1.75rem;
        --fs-400: 1.125rem;
    }
}

/* -------------- Reset ------------------------- */
*,
*::after,
*::before {
    box-sizing: border-box;
}

html,
body {
    scrollbar-gutter: stable;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
p {
    margin: 0;
    font-weight: 400;
}

body {
    line-height: 1.5;
    min-height: 100vh;
    font-family: var(--ff-sans-normal);
    font-size: var(--fs-400);
    background-color: hsl(var(--clr-black));
    color: hsl(var(--clr-grey));
    overflow-x: hidden;

    display: grid;
    grid-template-rows: min-content 1fr;
}

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

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

@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;
    }
}

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

.grid {
    display: grid;
    gap: var(--gap, 1rem);
}

.d-block {
    display: block;
}

.container {
    padding-inline: 2em;
    margin-inline: auto;
    max-width: 80rem;
}

@media (min-width: 45em) {
    .flex-con {
        min-width: 45em;
        max-width: 1000px;
        margin: 0 auto;
        flex-direction: row;
    }
}

.flow>*+* {
    margin-top: var(--flow-space, 1rem);
}

.skip-to-content {
    position: absolute;
    z-index: 99999;
    background: hsl(var(--clr-white));
    color: hsl(var(--clr-black));
    padding: .5em 1em;
    margin-inline: auto;
    transform: translateY(-100%);
    transition: transform 250ms ease-in;
}

.skip-to-content:focus {
    transform: translateY(0);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    /* added line */
    border: 0;
}

/* colors */

.bg-black {
    background-color: hsl(var(--clr-black));
}

.bg-grey {
    background-color: hsl(var(--clr-grey));
}

.bg-white {
    background-color: hsl(var(--clr-white));
}

.text-black {
    color: hsl(var(--clr-black));
}

.text-grey {
    color: hsl(var(--clr-grey));
}

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

/* typography */

.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;
}

/* -------------------------- */

.box {
    background-color: lightblue;
    padding: 3rem;
}

.opacity-back {
    background-color: hsl(var(--clr-grey) / .2);
}

.numbered-title {
    font-size: var(--fs-500);
    color: hsl(var(--clr-white));
    text-transform: uppercase;
    font-family: var(--ff-sans-cond);
    letter-spacing: 4.75px;

    span {
        color: hsl(var(--clr-white) / .25);
        font-weight: bold;
        margin-right: .5em;
    }
}

/* --------------------------------Components---------------------------------- */
.large-button {
    display: inline-grid;
    place-items: center;
    border-radius: 50%;
    padding: 0 2em;
    font-size: 1.5em;
    text-decoration: none;
    aspect-ratio: 1;
    position: relative;
    z-index: 1;
}

.large-button::after {
    content: '';
    position: absolute;
    z-index: -1;
    background-color: hsl(var(--clr-white) / .15);
    width: 100%;
    height: 100%;
    border-radius: 50%;
    opacity: 0;
    transition: opacity 300ms linear, transform 750ms ease-in-out;
}

.large-button:hover {
    color: hsl(var(--clr-black) / .5);
}

.large-button:hover::after,
.large-button:focus::after {
    transform: scale(1.5);
    opacity: 1;
}

.primary-header {
    justify-content: space-between;
    align-items: center;
}

.logo {
    margin: 1.5rem clamp(1.5rem, 5vw, 3.5rem);
}

.primary-navigation {
    list-style: none;
    --gap: clamp(1.5rem, 5vw, 3.5rem);
    --underline-gap: 2rem;
    padding: 0;
    margin: 0;
    background-color: hsl(var(--clr-black) / 0.95);

    a {
        text-decoration: none;
    }

    span {
        margin-right: 0.5em;
        font-weight: bold;
    }
}

@supports (backdrop-filter: blur(1.5rem)) {
    .primary-navigation {
        background-color: hsl(var(--clr-white) / 0.05);
        backdrop-filter: blur(1.5rem);
    }
}

.mobile-nav-toggle {
    display: none;
}

@media (max-width: 35em) {
    .primary-navigation {
        --underline-gap: .5rem;
        position: fixed;
        z-index: 1000;
        inset: 0 0 0 30%;
        padding: min(20rem, 15vh) 2rem;
        padding-right: 0;
        background-color: hsl(var(--clr-white) / 0.05);
        flex-direction: column;
        transition: transform 500ms ease-in-out;
        transform: translateX(100%);
    }

    .primary-navigation[data-visible="true"] {
        transform: translateX(0);
    }

    .primary-navigation.underline-indicators>* {
        border: 0;
        border-right: .2rem solid hsl(var(--clr-white) / 0);
    }

    .mobile-nav-toggle {
        display: block;
        position: absolute;
        cursor: pointer;
        z-index: 2000;
        right: 1rem;
        top: 2rem;
        border: 0;
        aspect-ratio: 1;
        width: 1.5rem;
        background: transparent;
        background-repeat: no-repeat;
        background-position: center;
        background-image: url('./assets/shared/icon-hamburger.svg');
        transition: background-image 100ms ease-in-out;
    }

    .mobile-nav-toggle[aria-expanded="true"] {
        background-image: url('./assets/shared/icon-close.svg');
    }

    .mobile-nav-toggle:focus-visible {
        outline: 5px solid white;
        outline-offset: 5px;
    }
}

@media (min-width: 35em) {
    .primary-navigation {
        padding-inline: clamp(2rem, 5vw, 7rem);
    }
}

@media (min-width: 35.111em) and (max-width: 44.999em) {
    .primary-navigation {
        margin-bottom: 3rem;

        span {
            display: none;
        }
    }
}

@media (min-width: 45em) {
    .primary-header::before {
        content: '';
        position: relative;
        display: block;
        height: 1px;
        width: 100%;
        margin-right: -2rem;
        background: hsl(var(--clr-white) / 0.25);
        order: 1;
    }

    nav {
        order: 2;
    }

    .primary-navigation {
        margin-block: 2rem;
    }
}

.underline-indicators>* {
    border: 0;
    border-bottom: .2rem solid hsl(var(--clr-white) / 0);
    padding: var(--underline-gap, 1rem) 0;
    cursor: pointer;
}

.underline-indicators>*:hover,
.underline-indicators>*:focus {
    border-color: hsl(var(--clr-white) / .5);
    color: hsl(var(--clr-white));
}

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

.tab-list {
    --gap: 2rem;
    --underline-gap: .5rem;
}

.tab-list>* {
    background-color: inherit;
}

.dot-indicators>* {
    border: 0;
    border-radius: 50%;
    cursor: pointer;
    aspect-ratio: 1;
    background-color: hsl(var(--clr-white) / .25);
}

.dot-indicators>*:hover,
.dot-indicators>*:focus {
    background-color: hsl(var(--clr-white) / .5);
}

.dot-indicators>[aria-selected="true"] {
    background-color: hsl(var(--clr-white) / 1);
}

.number-indicators>* {
    border-color: hsl(var(--clr-white) / .25);
    aspect-ratio: 1;
    padding-inline: 1em;
    border-radius: 50%;
    cursor: pointer;
}

.number-indicators>*:hover,
.number-indicators>*:focus {
    border-color: hsl(var(--clr-white));
}

.number-indicators>[aria-selected="true"] {
    background-color: hsl(var(--clr-white));
    color: hsl(var(--clr-black));
}

/* ----------------Page specific background------------------------ */
body {
    background-size: cover;
    background-position: bottom center;
    background-repeat: no-repeat;
}

/* ------------------Layout------------------------------------------ */
.grid-container {
    display: grid;
    text-align: center;
    place-items: center;
    row-gap: 7%;
    padding-inline: 1.5rem;
    padding-bottom: 5rem;
}

.grid-container p:not([class]) {
    max-width: 50ch;
}

/* destination page */

.grid-container--destination {
    --flow-space: 0;
    row-gap: 5%;
    grid-template-areas:
        'title'
        'image'
        'tabs'
        'content';
}

.numbered-title {
    grid-area: title;
}

.grid-container--destination>picture {
    grid-area: image;
    max-width: 60%;
    align-self: start;
}

.grid-container--destination>.tab-list {
    grid-area: tabs;
}

.destination-info {
    grid-area: content;
}

.destination-info>h1 {
    margin-bottom: 0.2em;
}

.destination-meta {
    flex-direction: column;
    align-items: center;
    border-top: 1px solid hsl(var(--clr-white) / .1);
    padding-block: 2em;
    margin-top: 2em;

    p {
        font-size: 1.75rem;
    }
}

@media (min-width: 35.111em) and (max-width: 44.999em) {
    .numbered-title {
        justify-self: start;
        margin-top: 2rem;
    }

    .destination-meta {
        flex-direction: row;
        justify-content: space-evenly;
    }
}

/* crew page */

.grid-container--crew {
    row-gap: min(7%, 2vh);
    grid-template-areas:
        'title'
        'content'
        'tabs'
        'image';
}

.crew-details {
    grid-area: content;

    span {
        color: hsl(var(--clr-white) / .5);
        margin-bottom: .5rem;
    }

    >h1 {
        margin-top: .7rem;
    }

    >p {
        margin-top: 2rem;
    }
}

.dot-indicators {
    grid-area: tabs;
}

.grid-container--crew>picture {
    grid-area: image;
    max-width: 60%;
    margin-top: 0;
    border-bottom: 1px solid hsl(var(--clr-white) / .1);
}

/* technology page */

.grid-container--technology {
    row-gap: 1em;
    grid-template-areas:
        'title'
        'image'
        'tabs'
        'content';
}

.grid-container--technology>picture {
    grid-area: image;
}

.number-indicators {
    grid-area: tabs;
}

.technology-info {
    grid-area: content;
}

.technology-info {
    span {
        color: hsl(var(--clr-white) / .5);
    }
}

@media (min-width: 45em) {
    .grid-container--crew {
        padding-bottom: 0;
    }

    .grid-container--technology {
        row-gap: 0;
    }
}

@media (min-width: 45em) {
    .grid-container {
        text-align: left;
        column-gap: var(--container-gap, 2rem);
        grid-template-columns: minmax(1rem, 1fr) repeat(2, minmax(0, 30rem)) minmax(1rem, 1fr);
    }

    .grid-container--home {
        padding-bottom: max(6rem, 20vh);
        align-items: end;
    }

    .grid-container--home>*:first-child {
        grid-column: 2;
    }

    .grid-container--home>*:last-child {
        grid-column: 3;
    }

    .grid-container--destination {
        justify-items: start;
        align-content: start;
        grid-template-areas:
            '. title title .'
            '. image tabs .'
            '. image content .';
    }

    .grid-container--destination>picture,
    .grid-container--technology>picture {
        max-width: 90%;
    }

    .destination-meta {
        flex-direction: row;
        --gap: min(5vw, 6rem);
    }

    .grid-container--crew {
        --gap: 2rem;
        justify-items: start;
        align-content: start;
        grid-template-columns: minmax(1rem, 1fr) minmax(0, 37rem) minmax(0, 30rem) minmax(1rem, 1fr);
        grid-template-areas:
            '. title title .'
            '. content image image'
            '. tabs image image'
    }

    .grid-container--crew>picture {
        grid-column: span 2;
        place-self: end center;
    }

    .dot-indicators {
        align-self: start;
        margin: 0;
    }

    .grid-container--technology {
        grid-template-columns: minmax(1rem, 1fr) minmax(5rem, 2fr) minmax(0, 37rem) minmax(0, 23rem) minmax(1rem, 1fr);
        grid-template-areas:
            '. title title title .'
            '. tabs content image image'
            '. tabs content image image'
    }

    .grid-container--technology>.numbered-title {
        justify-self: start;
    }

    .grid-container--technology>.number-indicators>* {
        padding-inline: .8em;
    }

    .number-indicators {
        flex-direction: column;
    }
}


/* --------------------------------------------Background----------------------------------------------------------------- */
/* home */
.home {
    background-image: url('./assets/home/background-home-mobile.jpg');
}

@media (min-width: 35em) {
    .home {
        background-position: center center;
        background-image: url('./assets/home/background-home-tablet.jpg');
    }
}

@media (min-width: 45em) {
    .home {
        background-image: url('./assets/home/background-home-desktop.jpg');
    }
}

.close {
    display: flex;
    justify-content: flex-end;
}

/* destination */
.destination {
    background-image: url('./assets/destination/background-destination-mobile.jpg');
}

@media (min-width: 35rem) {
    .destination {
        background-image: url('./assets/destination/background-destination-tablet.jpg');
    }
}

@media (min-width: 45rem) {
    .destination {
        background-image: url('./assets/destination/background-destination-desktop.jpg');
    }
}

/* crew */
.crew {
    background-image: url('./assets/crew/background-crew-mobile.jpg');
}

@media (min-width: 35rem) {
    .crew {
        background-image: url('./assets/crew/background-crew-tablet.jpg');
    }
}

@media (min-width: 45rem) {
    .crew {
        background-image: url('./assets/crew/background-crew-desktop.jpg');
    }
}

/* technology */
.technology {
    background-image: url('./assets/technology/background-technology-mobile.jpg');
}

@media (min-width: 35rem) {
    .technology {
        background-image: url('./assets/technology/background-technology-tablet.jpg');
    }
}

@media (min-width: 45rem) {
    .technology {
        background-image: url('./assets/technology/background-technology-desktop.jpg');
    }
}


@media (min-width: 35.111em) and (max-width: 44.999em) {
    .launch-image>img {
        background-image: url('./assets/technology/image-launch-vehicle-landscape.jpg');
    }

    .spaceport-image>img {
        background-image: url('./assets/technology/image-spaceport-landscape.jpg');
    }

    .capsule-image>img {
        background-image: url('./assets/technology/image-space-capsule-landscape.jpg');
    }
}