/* Nav chrome for core-header.js. Variables come from core.css. */

/* Row 1: backlink left, buttons+toggle right. Even with no backlink,
 t he right cluster stays right via space-between on an empty left. */    *
 .core-topbar {
     display: flex;
     justify-content: space-between;
     align-items: center;
     margin: 0 0 12px;
 }

 .core-topbar-left {
     min-width: 0;
 }

 .core-topbar-right {
     display: flex;
     align-items: center;
     gap: 8px;
 }

 .core-topbar-right .core-extra-btn,
.core-topbar-right .core-theme-toggle {
    border: 1px solid var(--chip-border);
    border-radius: 4px;
    background-color: var(--chip-bg);
    color: var(--text);
    cursor: pointer;
    font-size: 1em;
    padding: 2px 8px;
    text-decoration: none;
}

.core-topbar-right .core-extra-btn:hover,
.core-topbar-right .core-theme-toggle:hover {
    border-color: var(--muted);
}

.core-backlink {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.9em;
}

.core-backlink:hover {
    color: var(--text);
    text-decoration: underline;
}

/* Row 2: site menu */
.core-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    list-style: none;
    margin: 0 0 24px;
    padding: 0;
}

.core-menu a {
    display: inline-block;
    padding: 1px 8px;
    border: 1px solid var(--chip-border);
    border-radius: 4px;
    background-color: var(--chip-bg);
    color: var(--muted);
    font-size: 0.9em;
    text-decoration: none;
}

.core-menu a:hover {
    color: var(--text);
    border-color: var(--muted);
}

.core-menu li.core-nav-active a {
    color: var(--text);
    font-weight: 600;
    border-color: var(--muted);
}

/* Dropdown for entries with children */
.core-nav-has-children { position: relative; }
.core-nav-children {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.4rem 0.8rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    list-style: none;
    white-space: nowrap;
    z-index: 10;
}
.core-nav-has-children:hover > .core-nav-children,
.core-nav-has-children:focus-within > .core-nav-children { display: flex; }