*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
}

:root {
    --grid: grid;
    --flex: flex;
    --font-normal: 400;
    --font-bold: 600;
    --clr-header-footer: rgb(43, 55, 67);
    --clr-button: rgb(0, 117, 255);
    --clr-faux-select: #1e90ff;
    --clr-highlight: rgb(135, 206, 235);
    --clr-link: rgb(215, 234, 241);

    /* Light theme */
    --clr-body-bg: white;
    --clr-card-bg: white;
    --clr-icon-moon: white;
    --clr-icon-search: black;
    --clr-placeholder: rgb(156, 156, 156);
    --clr-text: black;
    --clr-shadow: -0.0625rem 0.25rem 0.625rem 0rem rgba(0, 0, 0, 0.3);
    --clr-img-border: black;
}

.dark-theme {
    --clr-body-bg: rgb(26, 34, 41);
    --clr-card-bg: rgb(43, 55, 67);
    --clr-icon-moon: rgb(26, 34, 41);
    --clr-icon-search: white;
    --clr-placeholder: rgb(156, 156, 156);
    --clr-text: white;
    --clr-shadow: -0.0625rem 0.25rem 0.625rem 0rem rgba(0, 0, 0, 1);
    --clr-img-border: transparent;
}

html {
    overflow-y: auto;
}

body {
    font-family: system-ui, sans-serif;
    line-height: 1.5;
    background-color: var(--clr-body-bg);
    color: var(--clr-text);
    font-size: 1rem;
}

a {
    color: var(--clr-link);
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}

h1,
h2,
h3 {
    line-height: 1.1;
}

h1 {
    margin: 2.2em 0 1em 0;
    color: white;
    font-weight: var(--font-normal);
    font-size: clamp(1.25rem, 0.8402rem + 2.0492vw, 2.5rem);
}

@media screen and (min-width: 37.5rem) {
    h1 {
        margin-top: 1em;
    }
}

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

:focus-visible {
    outline: 0.1875rem solid var(--clr-highlight);
}

select {
    max-width: 17.5rem;
    font-size: inherit;
    font-family: inherit;
    text-overflow: ellipsis;
    padding: 0.35rem 0.5rem;
    outline: 0.0625rem solid var(--clr-text);
    border: 0;
    border-radius: 0.25rem;
    background-color: var(--clr-body-bg);
    color: currentColor;
}

button {
    all: unset;
    cursor: pointer;
    font-size: inherit;
    font-family: inherit;
}

input[type="text"] {
    font-size: inherit;
    font-family: inherit;
}

.page-layout {
    min-height: 100vh;
    min-height: 100dvh;
    display: var(--grid);
    grid-template-rows: auto 1fr auto;
}

.page-header {
    position: relative;
}

.page-header,
.page-footer {
    text-align: center;
    background-color: var(--clr-header-footer);
}

.main,
.page-footer {
    padding: 2rem 1rem;
}

.page-footer {
    display: var(--flex);
    flex-direction: column;
    gap: 1rem;
}

.main {
    width: 100%;
    max-width: 81rem;
    margin: 0 auto;
    padding: 0 1rem 4.75rem;
}

/** Search forms **/
.filters {
    display: var(--flex);
    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: baseline;
    gap: 1rem;
    padding: 3rem 0;
}

/* Show all countries button */
.show-all-countries {
    padding: 0.5rem 0.75rem;
}

/* Search for a country */
.suggestions-form {
    margin-right: auto;
    position: relative;
    flex-grow: 1;
}

.country-search {
    padding: 0.35rem 0.5rem 0.35rem 2rem;
    border: 0;
    border-radius: 0.25rem;
    outline: 0.0625rem solid var(--clr-text);
    background-color: var(--clr-body-bg);
    color: currentColor;
    width: 100%;
}
.country-search:focus-within {
    outline: 0.1875rem solid var(--clr-highlight);
}
.country-search::placeholder {
    color: var(--clr-placeholder);
}

.icon-search {
    width: 1rem;
    height: 1rem;
    position: absolute;
    top: 0.6rem;
    left: 0.75rem;
    z-index: 10;
    fill: var(--clr-icon-search);
}

.suggestions {
    list-style: none;
    padding-left: 0;
    position: absolute;
    top: 100%;
    z-index: 10;
    background-color: white;
    box-shadow: var(--clr-shadow);
    max-height: 25.4375rem; /* Same height as search by countries select dropdown */
    width: 100%;
    overflow-y: auto;
}

.suggestions li {
    cursor: default;
    padding-left: 1rem;
    border-left: 0.0625rem solid black;
    border-right: 0.0625rem solid black;
    padding: 0.25rem 0 0.25rem 1rem;
    line-height: 1.2;
    background-color: var(--clr-body-bg);
    color: currentColor;
}
.suggestions li:first-child {
    border-top: 0.0625rem solid black;
}
.suggestions li:last-child {
    border-bottom: 0.0625rem solid black;
}
.suggestions li:hover {
    color: white;
    background-color: var(--clr-faux-select);
}
.suggestions li:focus-within {
    color: white;
    background-color: var(--clr-faux-select);
    outline: none;
}

/* Filter by country */
.country-select option {
    max-width: 100%;
    overflow: hidden;
    word-wrap: normal !important;
    white-space: break-spaces;
}

.country-select option:before {
    white-space: break-spaces;
}

/** Shared **/
.country-details {
    list-style: none;
    padding-left: 0;
    font-weight: var(--font-bold);
}

.country-details span {
    font-weight: var(--font-normal);
    padding-left: 0.25rem;
}

.button {
    margin-left: auto;
    background-color: var(--clr-button);
    border-radius: 0.25rem;
    color: white;
    font-weight: var(--font-bold);
}

.button:hover {
    opacity: 0.7;
}

.button:disabled,
.button:hover:disabled {
    cursor: not-allowed;
    opacity: 0.3;
}

.borders-button,
.country-view-details button {
    padding: 0.25rem 0.5rem;
}
/** All flags display **/
.countries-all {
    --auto-grid-min-size: 14.5rem;
    display: var(--grid);
    grid-template-columns: repeat(auto-fill, minmax(var(--auto-grid-min-size), 1fr));
    grid-gap: 4.75rem;
    list-style: none;
    padding-left: 0;
}

.country-card {
    display: var(--grid);
    box-shadow: var(--clr-shadow);
    background-color: var(--clr-card-bg);
}

.country-card-wrapper {
    display: var(--grid);
}

.country-card-header {
    display: var(--flex);
    flex-direction: column-reverse;
    justify-content: flex-end;
    gap: 1rem;
}

.country-card-heading {
    font-size: 1rem;
    line-height: inherit;
    padding: 0 1rem;
}

.country-card-image img {
    margin-top: 0;
    width: 100%;
    border-bottom: 0.0625rem solid var(--clr-img-border);
}

@media screen and (min-width: 36.8125rem) {
    .country-card-image img {
        aspect-ratio: 2/1;
        object-fit: cover;
    }
}

.country-card-info {
    padding: 1rem;
    align-self: end;
    display: var(--grid);
    gap: 1.5rem;
}

.country-view-details {
    display: var(--flex);
}

/** Country Detail */
.country-card-detail-wrapper {
    display: var(--flex);
    flex-wrap: wrap;
    gap: 2rem;
}

.country-detail-details {
    line-height: 1.8;
}

.country-detail-image img {
    border: 0.0625rem solid currentColor;
}

.country-detail-info > * {
    margin-bottom: 1rem;
}

.country-detail-heading {
    font-weight: var(--font-normal);
}

.borders-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
}

.borders-buttons-wrapper {
    display: var(--flex);
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: baseline;
    line-height: 1;
    max-width: 26.75rem;
    margin-bottom: 1.5rem;
}

@media screen and (min-width: 56.25rem) {
    .borders-buttons-wrapper {
        flex-wrap: nowrap;
    }
}

.borders-buttons-heading {
    font-weight: var(--font-bold);
    flex-shrink: 0;
}

.borders-button {
    margin: 0 0.5rem 0.5rem 0;
}

.loading-message {
    text-align: center;
    font-size: 1.75rem;
    animation: font_change 500ms infinite alternate;
}

@keyframes color_change {
    from {
        font-weight: var(--font-normal);
    }
    to {
        color: 600;
    }
}

/** Modal **/
.modal {
    padding: 2rem;
    box-shadow: var(--clr-shadow);
    border: 0;
    background-color: var(--clr-card-bg);
    color: currentColor;
    z-index: 20;
    margin: auto;
    width: -moz-fit-content;
    width: fit-content;
}

.modal::backdrop {
    background-color: hsla(0, 0%, 0%, 0.8);
    z-index: 15;
}

.close-modal {
    display: var(--flex);
}

.close-modal button {
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
}

/** Theme picker **/
.theme-picker {
    position: absolute;
    top: 0;
    right: 0;
    width: -moz-fit-content;
    width: fit-content;
}

.icon-moon {
    width: 1.375rem;
    height: 1.375rem;
    margin-right: 0.5rem;
}

.btn-theme-toggle {
    display: var(--flex);
    align-items: center;
    margin: 0 0 0 0.75rem;
    padding: 0.5rem 1rem;
    border-radius: 0 0 0 0.5rem;
    background-color: rgb(0, 117, 255);
    background-color: var(--clr-button);
    color: white;
    font-weight: var(--font-bold);
}

.btn-theme-toggle:hover {
    opacity: 0.7;
}

[aria-pressed] .icon-moon {
    fill: var(--clr-icon-moon);
}

[aria-pressed="false"] .btn-theme-state::after {
    content: ": off";
}
[aria-pressed="true"] .btn-theme-state::after {
    content: ": on";
}

/* screenreader only */
.visually-hidden {
    position: absolute;
    width: 0.0625rem;
    height: 0.0625rem;
    padding: 0;
    margin: -0.0625rem;
    overflow: hidden;
    clip-path: inset(0);
    border: 0;
}

/* Skip link */
.skip-link {
    background-color: var(--clr-button);
    color: white;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 0 0 0.625rem 0; /* 0.625rem */
}
.element-invisible {
    clip: rect(0.0625rem, 0.0625rem, 0.0625rem, 0.0625rem);
    height: 0.0625rem;
    overflow: hidden;
    position: absolute;
    left: 0;
    z-index: 10;
}
.element-invisible.element-focusable:active,
.element-invisible.element-focusable:focus {
    clip: auto;
    height: auto;
    overflow: visible;
}

/* Remove all animations, transitions and smooth scroll for people that prefer not to see them */
@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;
        transition-delay: 0ms !important;
    }
}

/** Always comes last **/
.hide {
    display: none;
}