/*
 * Styles of the sample website, after the look of the game interface: white elements with a
 * square black border, darker while hovered or pressed.
 */

:root {
    --color-text: #000;
    --color-muted: #666;
    --color-background: #fff;
    --color-hover: #ddd;
    --color-active: #ccc;
    --color-toggled: #077;
    --color-toggled-text: #fff;
    --color-error: #b00;
    --border: 2px solid #000;
    --page-width: 960px;
    --content-width: 702px;
    --gutter: 16px;
}

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

body {
    margin: 0;
    background: var(--color-background);
    color: var(--color-text);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.4;
}

h1 {
    margin: 0 0 16px;
    font-size: 22px;
}

h2 {
    margin: 24px 0 8px;
    font-size: 18px;
}

a {
    color: inherit;
}

.muted {
    color: var(--color-muted);
}

/* Buttons and button links */

.button {
    display: inline-block;
    padding: 6px 12px;
    border: var(--border);
    background: var(--color-background);
    color: var(--color-text);
    font: inherit;
    text-decoration: none;
    cursor: pointer;
}

.button:hover {
    background: var(--color-hover);
}

.button:active {
    background: var(--color-active);
}

.button[aria-pressed='true'] {
    background: var(--color-toggled);
    color: var(--color-toggled-text);
}

/* Header and page */

.site-header {
    margin-bottom: 24px;
    border-bottom: var(--border);
}

.site-header__inner,
.page {
    max-width: var(--page-width);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--gutter);
    padding-block: 16px;
}

.site-header__home {
    font-size: 24px;
    font-weight: bold;
    text-decoration: none;
}

.page {
    padding-bottom: 32px;
}

/* Front page: grid of track cards */

.track-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--gutter);
    margin: 0;
    padding: 0;
    list-style: none;
}

.track-card {
    display: block;
    border: var(--border);
    text-decoration: none;
}

.track-card:hover {
    background: var(--color-hover);
}

.track-card__thumbnail {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 5 / 3;
    border-bottom: var(--border);
    background: var(--color-background);
}

.track-card__thumbnail--empty {
    display: grid;
    place-items: center;
    color: var(--color-muted);
}

.track-card__info {
    display: block;
    padding: 8px 12px;
}

.track-card__title {
    display: block;
    font-weight: bold;
}

.track-card__meta {
    display: block;
    margin-top: 4px;
    color: var(--color-muted);
    font-size: 14px;
}

/* Track page: leaderboard under the game */

.leaderboard,
.game-help {
    max-width: var(--content-width);
    margin-inline: auto;
}

.leaderboard__table {
    width: 100%;
    border-collapse: collapse;
}

.leaderboard__table th,
.leaderboard__table td {
    padding: 6px 10px;
    border: var(--border);
    text-align: left;
}

.leaderboard__table .leaderboard__time {
    text-align: right;
    white-space: nowrap;
}

.leaderboard__rider {
    width: 100%;
    text-align: left;
}

.leaderboard__status:empty {
    display: none;
}

/* Track page: description under the title */

.track-description {
    max-width: var(--content-width);
    margin: -8px 0 16px;
}

/* Upload page: thumbnail of the uploaded track, then the form of its title and description */

.upload {
    max-width: var(--content-width);
}

.upload__thumbnail {
    display: block;
    width: 100%;
    max-width: 500px;
    height: auto;
    border: var(--border);
}

.field {
    margin-bottom: 16px;
}

.field__label {
    display: block;
    margin-bottom: 4px;
    font-weight: bold;
}

.field__input {
    display: block;
    width: 100%;
    padding: 6px 8px;
    border: var(--border);
    border-radius: 0;
    background: var(--color-background);
    color: var(--color-text);
    font: inherit;
}

.field__input:focus {
    outline: 2px solid var(--color-toggled);
    outline-offset: 2px;
}

.field__input[aria-invalid='true'] {
    border-color: var(--color-error);
}

textarea.field__input {
    resize: vertical;
}

.field__error {
    margin: 4px 0 0;
    color: var(--color-error);
}

/* Header: links side by side */

.site-header__nav {
    display: flex;
    gap: 8px;
}

/* Header: account name, and the log out form inline with the links */

.site-header__nav form {
    display: contents;
}

.site-header__user {
    align-self: center;
    font-weight: bold;
}

/* Account forms */

.account {
    max-width: 400px;
}

.field__help {
    margin: 4px 0 0;
    font-size: 14px;
}

/* Deleting: red buttons, inline with the content */

.delete-form {
    display: inline-block;
    margin: 0 0 16px;
}

.leaderboard__table .delete-form {
    margin: 0;
}

.button--danger {
    border-color: var(--color-error);
    color: var(--color-error);
}

/* Text for screen readers only, e.g. the header of a column of buttons */

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

/* Badges next to the riders: the run verifying the track, and the ghosts checked by an admin */

.badge {
    display: inline-block;
    margin-left: 6px;
    padding: 0 6px;
    border: 1px solid var(--color-toggled);
    color: var(--color-toggled);
    font-size: 12px;
}

.badge--review {
    border-color: var(--color-error);
    color: var(--color-error);
}

/* Track and verification pages: verification under the title, actions side by side */

.track-verification {
    margin: -8px 0 16px;
}

.verification__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 8px 16px;
    margin-bottom: 16px;
}

.verification__actions form {
    margin: 0;
}

.verification__verifier {
    display: flex;
    align-items: center;
    gap: 8px;
}

.verification__verifier .field__input {
    width: 12em;
}

.leaderboard__table .delete-form {
    margin-right: 4px;
}