/* App navigation — desktop sidebar SVG icons + mobile bottom tab bar */

.app-nav-icon
{
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    display: block;
}
.site-sidebar:hover .app-nav-icon
{
    width: 24px;
    height: 24px;
}
.app-nav-icon--filled
{
    display: none;
}
.app-nav-link-active .app-nav-icon--outline,
.sidebar-link-active .app-nav-icon--outline
{
    display: none;
}
.app-nav-link-active .app-nav-icon--filled,
.sidebar-link-active .app-nav-icon--filled
{
    display: block;
}

.sidebar-link .sidebar-icon
{
    display: none !important;
}
.sidebar-link .app-nav-label
{
    font-family: var(--font);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    white-space: nowrap;
    opacity: 0;
    width: 0;
    min-width: 0;
    max-width: 0;
    overflow: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, width 0.2s ease, max-width 0.2s ease;
}
.site-sidebar:hover .sidebar-link .app-nav-label
{
    opacity: 1;
    width: auto;
    max-width: none;
    overflow: visible;
}

/* Instagram-style bottom tab bar — floating rounded pill on mobile */
.app-bottom-nav
{
    display: none;
    position: fixed;
    z-index: 1100;
    left: 0.85rem;
    right: 0.85rem;
    bottom: calc(0.75rem + env(safe-area-inset-bottom, 0px));
    width: auto;
    height: 52px;
    padding: 0;
    border-radius: 20px;
    background: rgba(22, 22, 22, 0.94);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-mid, rgba(100, 100, 100, 0.52));
    box-shadow: 0 10px 36px rgba(0, 0, 0, 0.42);
    overflow: hidden;
}

html[data-theme="light"] .app-bottom-nav
{
    background: rgba(248, 248, 248, 0.94);
    border-color: rgba(0, 0, 0, 0.12);
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.12);
}
.app-bottom-nav-link
{
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.15rem;
    min-height: 52px;
    padding: 0.35rem 0.25rem 0.25rem;
    color: var(--text-muted, #a1a1aa);
    text-decoration: none;
    transition: color 0.15s ease;
    -webkit-tap-highlight-color: transparent;
}
.app-bottom-nav-link .app-nav-icon
{
    width: 24px;
    height: 24px;
}
.app-bottom-nav-link .app-nav-label
{
    font-family: var(--font);
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    line-height: 1;
}
.app-bottom-nav-link:hover,
.app-bottom-nav-link:focus-visible
{
    color: var(--text-primary, #f4f4f5);
    outline: none;
}
.app-bottom-nav-link.app-nav-link-active
{
    color: var(--text-primary, #f4f4f5);
}

@media (max-width: 768px)
{
    .app-bottom-nav
    {
        display: flex;
        align-items: stretch;
    }

    .site-sidebar
    {
        display: none !important;
    }

    .main-wrap
    {
        margin-left: 0 !important;
        padding-bottom: calc(52px + 1.65rem + env(safe-area-inset-bottom, 0px));
    }

    body .site-footer:not(.site-footer--app):not(.site-footer--scroll-gated)
    {
        padding-bottom: calc(4rem + 1.65rem + env(safe-area-inset-bottom, 0px));
    }
}

@media (min-width: 769px)
{
    .app-bottom-nav
    {
        display: none !important;
    }
}