/*
 * Earthlog navigation menus and the Dashboards page.
 * Loaded after built/screen.css. Uses the theme's own colour and font variables, so it follows the site's colours and fonts.
 */

:root {
    --el-panel-bg: var(--background-color, #fff);
    --el-live: #d9a441;
    --el-heading: var(--gh-font-heading, var(--font-serif, Georgia, serif));
    --el-body: var(--gh-font-body, var(--font-sans, system-ui, sans-serif));
}

@supports (background: color-mix(in srgb, red, blue)) {
    :root {
        --el-panel-bg: color-mix(in srgb, var(--background-color, #fff) 93%, #fff);
    }
}

/* ---- the bar ---- */

.gh-navigation {
    position: relative;
    z-index: 100;
}

.gh-navigation .gh-navigation-inner {
    position: relative;
}

.el-nav-list {
    display: flex;
    gap: 30px;
    align-items: center;
    padding: 0;
    margin: 0;
    white-space: nowrap;
    list-style: none;
}

.el-nav-item > a,
.el-nav-trigger {
    display: inline-flex;
    gap: 6px;
    align-items: center;
    padding: 8px 0;
    font: inherit;
    color: inherit;
    cursor: pointer;
    background: none;
    border: 0;
}

.el-nav-trigger svg {
    flex: none;
    opacity: 0.7;
    transition: transform 0.18s ease;
}

.el-nav-item.is-open .el-nav-trigger svg {
    transform: rotate(180deg);
}

.el-nav-item.is-current > .el-nav-trigger span {
    text-decoration: underline;
    text-decoration-thickness: 1.5px;
    text-underline-offset: 8px;
}

.el-nav-item > a:hover,
.el-nav-trigger:hover {
    opacity: 0.8;
}

.el-nav :is(a, button):focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 3px;
    border-radius: 2px;
}

.el-nav[hidden],
.el-nav-item[hidden],
.el-nav-source[hidden] {
    display: none;
}

/* Without JavaScript: show the plain Ghost list, hide the empty menus */
html:not(.el-js) .el-nav-list > .el-nav-item[data-el] {
    display: none;
}

.el-js .el-nav-source {
    display: none;
}

.el-nav-source,
.el-nav-source .nav {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 24px;
    padding: 0;
    margin: 0 0 0 24px;
    list-style: none;
}

/* ---- panels ---- */

.el-panel {
    position: absolute;
    top: calc(100% - 4px);
    left: 0;
    z-index: 90;
    visibility: hidden;
    color: var(--color-darker-gray);
    text-align: left;
    white-space: normal;
    background-color: var(--el-panel-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    box-shadow: 0 24px 48px -16px rgb(0 0 0 / 0.5);
    opacity: 0;
    transition: opacity 0.16s ease, transform 0.16s ease, visibility 0s linear 0.16s;
    transform: translateY(-4px);
}

.el-nav-item.is-open > .el-panel {
    visibility: visible;
    opacity: 1;
    transition-delay: 0s;
    transform: none;
}

.el-panel-dashboards {
    width: min(1040px, 100%);
}

.el-nav-item[data-el="regions"] {
    position: relative;
}

.el-panel-regions {
    top: calc(100% + 22px);
    left: -20px;
    width: 232px;
    padding: 10px 0;
}

.el-panel-inner {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px 36px;
    padding: 28px 32px 22px;
}

.el-group-title {
    padding-bottom: 10px;
    margin: 0 0 6px;
    font-family: var(--el-heading);
    font-size: 1.7rem;
    font-weight: 650;
    line-height: 1.25;
    letter-spacing: -0.005em;
    border-bottom: 1px solid var(--color-border);
}

.el-group-list,
.el-region-list {
    padding: 0;
    margin: 0;
    list-style: none;
}

.el-link {
    display: block;
    padding: 9px 0;
    color: inherit;
    text-decoration: none;
}

.el-link-name {
    display: block;
    font-size: 1.5rem;
    font-weight: 600;
    line-height: 1.3;
}

.el-link-desc {
    display: block;
    margin-top: 2px;
    font-family: var(--el-body);
    font-size: 1.3rem;
    font-weight: 400;
    line-height: 1.4;
    color: var(--color-secondary-text);
}

.el-link:hover .el-link-name,
.el-link:focus-visible .el-link-name {
    text-decoration: underline;
    text-decoration-thickness: 1.5px;
    text-underline-offset: 4px;
}

.el-link[aria-current="page"] .el-link-name::after {
    margin-left: 8px;
    font-weight: 400;
    color: var(--color-secondary-text);
    content: "you are here";
    font-size: 1.15rem;
}

.el-panel-regions .el-link {
    padding: 9px 24px;
}

.el-panel-all {
    grid-column: 1 / -1;
    padding-top: 16px;
    margin-top: 10px;
    font-size: 1.4rem;
    font-weight: 600;
    color: inherit;
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
    border-top: 1px solid var(--color-border);
}

.el-panel-all:hover {
    text-decoration-thickness: 2px;
}

/* ---- narrow screens: the burger menu ---- */

@media (max-width: 991px) {
    .el-panel-inner {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 767px) {
    #gh-navigation .el-nav-list {
        flex-direction: column;
        gap: 0;
        align-items: stretch;
        width: 100%;
        white-space: normal;
    }

    #gh-navigation .el-nav-item {
        border-bottom: 1px solid var(--color-border);
    }

    #gh-navigation .el-nav-item > a,
    #gh-navigation .el-nav-trigger {
        justify-content: space-between;
        width: 100%;
        padding: 16px 0;
        font-size: 1.8rem;
        font-weight: 600;
    }

    #gh-navigation .el-panel {
        position: static;
        display: none;
        width: auto;
        padding: 0;
        margin: 0 0 16px;
        visibility: visible;
        background: none;
        border: 0;
        box-shadow: none;
        opacity: 1;
        transform: none;
    }

    #gh-navigation .el-nav-item.is-open > .el-panel {
        display: block;
    }

    #gh-navigation .el-panel-inner {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 0;
    }

    #gh-navigation .el-panel-regions {
        width: auto;
    }

    #gh-navigation .el-panel-regions .el-link {
        padding: 10px 0;
    }

    #gh-navigation .el-nav-source {
        margin: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    .el-panel,
    .el-nav-trigger svg {
        transition: none;
    }
}

/* ---- the Dashboards page ---- */

.el-hub {
    padding-top: 8px;
    padding-bottom: clamp(56px, 8vw, 112px);
}

.el-hub-inner {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 56px clamp(40px, 6vw, 96px);
    align-items: start;
}

.el-hub-group-title {
    padding-bottom: 14px;
    margin: 0;
    font-family: var(--el-heading);
    font-size: clamp(2.2rem, 1.9rem + 0.6vw, 2.8rem);
    font-weight: 650;
    line-height: 1.2;
    letter-spacing: -0.01em;
    border-bottom: 1.5px solid var(--color-darker-gray);
}

.el-hub-list {
    padding: 0;
    margin: 0;
    list-style: none;
}

.el-hub-row {
    display: block;
    padding: 20px 0 22px;
    color: inherit;
    text-decoration: none;
    border-bottom: 1px solid var(--color-border);
}

.el-hub-name {
    display: block;
    font-family: var(--el-heading);
    font-size: 2.1rem;
    font-weight: 600;
    line-height: 1.25;
}

.el-hub-row:hover .el-hub-name,
.el-hub-row:focus-visible .el-hub-name {
    text-decoration: underline;
    text-decoration-thickness: 1.5px;
    text-underline-offset: 5px;
}

.el-hub-row:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

.el-hub-desc {
    display: block;
    max-width: 48ch;
    margin-top: 5px;
    font-family: var(--el-body);
    font-size: 1.5rem;
    line-height: 1.45;
    color: var(--color-secondary-text);
}

.el-hub-live {
    position: relative;
    display: block;
    min-height: 1.5em;
    padding-left: 18px;
    margin-top: 12px;
    font-family: var(--el-body);
    font-size: 1.45rem;
    font-weight: 550;
    font-variant-numeric: tabular-nums;
    line-height: 1.45;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.el-hub-live.is-loaded {
    opacity: 1;
}

.el-hub-live::before {
    position: absolute;
    top: 0.55em;
    left: 2px;
    width: 7px;
    height: 7px;
    content: "";
    background-color: var(--el-live);
    border-radius: 50%;
}

@media (max-width: 767px) {
    .el-hub-inner {
        grid-template-columns: 1fr;
        gap: 44px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .el-hub-live {
        transition: none;
    }
}

.el-hub-header {
    padding-top: clamp(32px, 5vw, 64px);
    padding-bottom: clamp(24px, 3vw, 40px);
}

.el-hub-header .gh-article-excerpt {
    max-width: 56ch;
}

/* ---- Maritime chokepoints: zoom controls ---- */

.gh-cp:not(.is-compact) .gh-cp-maphead {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
    align-items: center;
}

.cpz {
    display: inline-flex;
    gap: 6px;
    margin-left: auto;
}

.cpz button {
    min-width: 34px;
    height: 32px;
    padding: 0 10px;
    font: inherit;
    font-size: 1.6rem;
    line-height: 1;
    color: inherit;
    cursor: pointer;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

.cpz .cpz-reset {
    font-size: 1.3rem;
}

.cpz button:hover:not(:disabled) {
    border-color: currentColor;
}

.cpz button:disabled {
    cursor: default;
    opacity: 0.35;
}

.cpz button:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

.gh-cp-svg.cpz-zoomed {
    cursor: grab;
}

.gh-cp-svg.cpz-dragging {
    cursor: grabbing;
    touch-action: none;
}

/* Embedded data pages */
.el-embed-frame { display: block; width: 100%; border: 0; min-height: 900px; background: transparent; }