:root {
    --ocean-ink: #124c6b;
    --ocean-wash: #eaf4fb;
    --ocean-mint: #edf8f3;
    --ocean-paper: #fff;
    --ocean-edge: #cadfe4;
    --ocean-active: #d7efec;
}
:root[data-theme="dark"], html.theme-dark, body.theme-dark {
    --ocean-ink: #bce5f2;
    --ocean-wash: #142c40;
    --ocean-mint: #122e31;
    --ocean-paper: #14232e;
    --ocean-edge: #32505b;
    --ocean-active: #20434a;
}
.ocean-header, .wd-header {
    background: linear-gradient(110deg, var(--ocean-wash), var(--ocean-paper) 48%, var(--ocean-mint));
    border-bottom: 1px solid var(--ocean-edge);
    box-shadow: 0 3px 14px rgb(10 55 74 / 5%);
}
.ocean-header::after, .wd-header::after {
    content: "";
    position: absolute;
    inset: auto 0 -1px;
    height: 2px;
    background: linear-gradient(90deg, #447fab, #429d9b 55%, transparent);
    pointer-events: none;
}
.ocean-header {padding: 14px clamp(16px, 3vw, 48px);}
.ocean-header nav {align-items: center; gap: 4px;}
.ocean-header nav a {padding: 8px 10px; border-radius: 9px;}
.ocean-header nav .ocean-brand, .wd-brand {
    color: var(--ocean-ink);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.ocean-header nav .ocean-brand {
    margin-inline-end: 10px;
    font-size: 1.3rem;
    font-weight: 750;
    letter-spacing: -.045em;
}
.ocean-header a:hover, .ocean-header nav [aria-current="page"],
.wd-nav a:hover, .wd-nav button:hover, .wd-nav [aria-current="page"] {
    color: var(--ocean-ink);
    background: var(--ocean-active);
    text-decoration: none;
}
.wd-nav {background: var(--ocean-paper); border-color: var(--ocean-edge);}
.ocean-header :focus-visible, .wd-header :focus-visible, .home-search input:focus-visible {
    outline: 2px solid #27889a;
    outline-offset: 2px;
}
.ocean-mark {position: relative; display: block;}
.ocean-mark img {display: block; width: 100%; height: auto;}
/* Tint only the painted silhouette. The transparent grid and original lettering stay intact. */
.ocean-mark::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 20% 23% at 53% 47%, #44a18999 65%, transparent 100%),
        linear-gradient(155deg, #3989c9a8 4%, #348dc57a 37%, transparent 65%);
    mask: url("/logo.png") center / 100% 100% no-repeat;
    clip-path: inset(0 0 22% 0);
    pointer-events: none;
}
.ocean-brand .ocean-mark, .wd-brand .ocean-mark {
    box-sizing: content-box;
    width: 40px;
    padding: 4px;
    border-radius: 12px;
    background: #f6fafb;
    border: 1px solid #cbdfe5;
}
.wd-brand .ocean-mark {width: 48px;}
.wd-brand .ocean-mark img {width: 100%; height: auto; padding: 0; background: none;}
.ocean-brand .ocean-mark::after, .wd-brand .ocean-mark::after {inset: 4px;}
.search-brand .search-logo {height: auto;}
.home-search button {background: #096f83;}
.home-search button:hover {background: #075d70;}
.logo-frame {border-color: #c8e0e1;}
@media (max-width: 760px) {
    .ocean-header {gap: 10px;}
    .ocean-header nav {row-gap: 2px;}
    .ocean-header nav a {padding: 7px 8px;}
    .ocean-header .controls, .wd-header-tools {max-width: 100%; flex-wrap: wrap;}
    .wd-header-shell {min-width: 0;}
    .wd-header-tools {justify-content: flex-end;}
}

html[data-logo-color="off"] .ocean-mark::after {content: none;}

.mobile-menu-toggle {display: none;}
.ocean-header > .ocean-brand {
    display: inline-flex;
    gap: 10px;
    align-items: center;
    color: var(--ocean-ink);
    text-decoration: none;
    font-size: 1.3rem;
    font-weight: 750;
    letter-spacing: -.045em;
}
.ocean-header > nav {margin-inline-end: auto;}
@media (max-width: 760px) {
    .ocean-header, .wd-header-shell {display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center;}
    .mobile-menu-toggle {display: block; margin-inline-start: auto; order: 0;}
    .mobile-menu-toggle summary {
        display: flex; align-items: center; gap: 8px; min-height: 42px; cursor: pointer;
        padding: 0 12px; border: 1px solid var(--ocean-edge); border-radius: 10px;
        background: var(--ocean-paper); color: var(--ocean-ink); font: inherit; font-weight: 600;
        list-style: none;
    }
    .mobile-menu-toggle summary::-webkit-details-marker {display: none;}
    .menu-icon {width: 16px; height: 12px; border-block: 2px solid; position: relative;}
    .menu-icon::after {content: ""; position: absolute; inset: 50% 0 auto; border-top: 2px solid; transform: translateY(-50%);}
    .mobile-menu-toggle[open] summary {background: var(--ocean-active);}
    .mobile-menu-toggle:not([open]) ~ #header-navigation,
    .mobile-menu-toggle:not([open]) ~ #header-preferences {display: none;}
    .mobile-menu-toggle[open] ~ #header-navigation,
    .mobile-menu-toggle[open] ~ #header-preferences {
        display: flex; flex-wrap: wrap; justify-content: flex-start;
        flex-basis: 100%; min-width: 0; margin: 0; order: 1;
    }
    .mobile-menu-toggle[open] ~ #header-preferences {order: 2;}
}

/* Keep desktop navigation visible independently of the mobile disclosure. */
@media (min-width: 761px) {
    .ocean-header, .wd-header-shell {
        display: grid;
        grid-template-columns: auto minmax(0, 1fr) auto;
        align-items: center;
        gap: clamp(10px, 1.5vw, 24px);
    }
    #header-navigation {
        display: flex;
        justify-self: start;
        align-items: center;
        justify-content: flex-start;
        flex-wrap: wrap;
        width: auto;
        max-width: 100%;
        margin: 0;
        order: 0;
    }
    #header-preferences {display: flex; justify-self: end; margin: 0; order: 0;}
    .wd-header #header-navigation {justify-self: center;}
}
@media (min-width: 761px) and (max-width: 1000px) {
    .ocean-header, .wd-header-shell {grid-template-columns: auto 1fr;}
    #header-preferences {grid-row: 1; grid-column: 2;}
    #header-navigation {grid-column: 1 / -1; grid-row: 2;}
    .wd-header #header-navigation {justify-self: start;}
}
.landing-info {position: relative;}
.landing-info summary {cursor: pointer; list-style: none; font-size: 1.4rem; padding: 3px 12px; border-radius: 10px; color: var(--ocean-ink);}
.landing-info summary::-webkit-details-marker {display: none;}
.landing-info > div {position: absolute; z-index: 20; inset-inline-start: 0; min-width: 12rem; padding: 6px; border: 1px solid var(--ocean-edge); border-radius: 12px; background: var(--ocean-paper);}
.landing-info a {display: block;}
@media (max-width:760px) {
    .landing-info {width: 100%;}
    .landing-info > div {position: static;}
}