.nav-shell {
    border-bottom: 1px solid var(--pui-color-nav-border, var(--border));
    background: var(--pui-color-nav-background, var(--surface));
    padding: 12px 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    max-width: calc(var(--page-max-width, var(--pui-breakpoint-xl, 1280px)) + (var(--page-gutter-x, var(--pui-space-5, 1rem)) * 2));
    margin: 0 auto;
    padding-inline: var(--page-gutter-x, var(--pui-space-5, 1rem));
    width: 100%;
    box-sizing: border-box;
}

.nav-brand {
    display: inline-flex;
    align-items: center;
    min-height: var(--pui-touch-target-min, 2.75rem);
    text-decoration: none;
}

.nav-brand img {
    height: 36px;
    display: block;
}

.nav-brand__lockup {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

.nav-brand__mark {
    width: 36px;
    height: 36px;
    flex: 0 0 36px;
}

.nav-brand__wordmark {
    display: inline-flex;
    flex-direction: column;
    gap: 0.05rem;
    line-height: 1;
}

.nav-brand__line {
    display: inline-flex;
    align-items: baseline;
    gap: 0.18rem;
}

.nav-brand__primary,
.nav-brand__secondary {
    color: var(--pui-color-logo-text-primary, var(--text));
    font-size: 0.8rem;
    font-weight: var(--pui-font-weight-medium, 500);
}

.nav-brand__accent {
    color: var(--pui-color-logo-text-secondary, var(--accent));
    font-size: 1.05rem;
    font-weight: var(--pui-font-weight-bold, 700);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    min-width: var(--pui-touch-target-min, 2.75rem);
    min-height: var(--pui-touch-target-min, 2.75rem);
    background: transparent;
    border: 0;
    border-radius: var(--pui-radius-sm, 0.375rem);
    padding: 6px;
    cursor: pointer;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--pui-color-nav-text, var(--text));
}

.nav-links {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex: 1;
}

.nav-scrim {
    display: none;
}

.nav-close {
    display: none;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 18px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-list a {
    text-decoration: none;
    color: var(--pui-color-nav-text, var(--text));
    font-weight: 600;
    font-size: 14px;
    border-radius: var(--pui-radius-sm, 0.375rem);
    transition: color var(--pui-motion-fast, 160ms ease);
}

.nav-list a:hover {
    color: var(--pui-color-nav-text-active, var(--accent));
}

.nav-list a[aria-current="page"],
.nav-dropdown-button--active {
    color: var(--pui-color-nav-text-active, var(--accent));
}

.nav-list a:focus-visible,
.nav-dropdown-button:focus-visible,
.nav-toggle:focus-visible,
.nav-close:focus-visible,
.nav-sublist a:focus-visible,
.nav-sublist button:focus-visible,
.footer-links a:focus-visible,
.footer-terms:focus-visible {
    outline: none;
    box-shadow: var(--pui-focus-ring, 0 0 0 3px rgba(37, 99, 235, 0.2));
}

.nav-list a.nav-leading-link {
    display: inline-flex;
    align-items: center;
    font-size: 15px;
    font-weight: 700;
    line-height: 24px;
    letter-spacing: normal;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.nav-actions .mud-button-root {
    min-width: 0;
}
.nav-actions .mud-button-root.mud-button-filled,
.nav-actions .mud-button-root.mud-button-outlined {
    padding-inline: 0.75rem;
}

.nav-actions .theme-toggle-button {
    width: 36px;
    height: 36px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--pui-color-surface-control, var(--surface_alt));
    color: var(--pui-color-nav-text, var(--text));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    cursor: pointer;
    transition:
        background var(--pui-motion-fast, 160ms ease),
        border-color var(--pui-motion-fast, 160ms ease),
        color var(--pui-motion-fast, 160ms ease);
}

.nav-actions .theme-toggle-button:focus-visible {
    outline: none;
    box-shadow: var(--pui-focus-ring, 0 0 0 3px rgba(37, 99, 235, 0.2));
}

.nav-actions .theme-toggle-button:hover {
    background: var(--pui-color-nav-hover-background, var(--state_hover_bg));
}

.nav-actions .theme-toggle-icon {
    width: 18px;
    height: 18px;
    display: block;
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    height: 12px;
}

.nav-dropdown-button {
    background: transparent;
    border: 0;
    padding: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--pui-color-nav-text, var(--text));
    font-weight: 600;
    font-size: 14px;
    border-radius: var(--pui-radius-sm, 0.375rem);
    transition: color var(--pui-motion-fast, 160ms ease);
}

.products-button {
    font-size: 15px;
    font-weight: 700;
}

.nav-dropdown-button:hover {
    color: var(--pui-color-nav-text-active, var(--accent));
}

.nav-caret {
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid currentColor;
    transition: transform var(--pui-motion-fast, 160ms ease);
}

.nav-dropdown:hover .nav-caret,
.nav-dropdown-button[aria-expanded="true"] .nav-caret {
    transform: rotate(180deg);
}

.nav-sublist {
    position: absolute;
    top: 100%;
    margin-top: 10px;
    left: 0;
    display: none;
    flex-direction: column;
    gap: 10px;
    list-style: none;
    margin: 0;
    padding: 14px 12px;
    min-width: 180px;
    background: var(--pui-color-surface-raised, var(--surface));
    border: 1px solid var(--pui-color-border-default, var(--border));
    border-radius: 16px;
    box-shadow: var(--pui-shadow-raised, 0 12px 24px rgba(0, 0, 0, 0.08));
    z-index: 20;
}

.nav-sublist.open,
.nav-dropdown:hover .nav-sublist {
    display: flex;
    animation: nav-sublist-enter var(--pui-motion-medium, 240ms ease);
}

@keyframes nav-sublist-enter {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-sublist a,
.nav-sublist button {
    color: var(--pui-color-nav-text, var(--text));
    font-weight: 600;
    font-size: 14px;
    background: none;
    border: 0;
    padding: 0;
    text-align: left;
    border-radius: var(--pui-radius-sm, 0.375rem);
    transition: color var(--pui-motion-fast, 160ms ease);
    cursor: pointer;
}

.nav-sublist a:hover,
.nav-sublist button:hover {
    color: var(--pui-color-nav-text-active, var(--accent));
}

.nav-sublist-back {
    display: none;
}

/* Grouped product dropdown: titled columns instead of a single link list. */
.nav-sublist--groups {
    flex-direction: row;
    align-items: flex-start;
    gap: 40px;
}

.nav-sublist-group {
    display: flex;
    flex-direction: column;
}

.nav-sublist-group__title {
    color: var(--pui-color-text-muted, var(--text_muted));
    font-size: 11px;
    font-weight: 600;
    letter-spacing: var(--pui-letter-spacing-caps, 0.08em);
    text-transform: uppercase;
}

.nav-sublist-group__links {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin: 8px 0 0;
    padding: 0;
    list-style: none;
}

.nav-status-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.nav-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
}

.nav-status-dot--success {
    background: var(--pui-color-success);
}

.nav-status-dot--warning {
    background: var(--pui-color-warning);
}

.nav-status-dot--danger {
    background: var(--pui-color-danger);
}

.nav-status-text {
    color: var(--pui-color-nav-text, var(--text));
}

.nav-status-label {
    color: var(--pui-color-text-muted, var(--text_muted));
    font-size: 12px;
    font-weight: 600;
}

.footer-shell {
    margin-top: 20px;
    padding-bottom: 60px;
    color: var(--pui-color-text-muted, var(--text_muted));
}

.footer-shell__divider {
    border: 0;
    border-top: 1px solid var(--pui-color-border-default, var(--border));
    opacity: 1;
}

.footer-shell__divider,
.footer-top,
.footer-legal {
    box-sizing: border-box;
    max-width: calc(var(--page-max-width, var(--pui-breakpoint-xl, 1280px)) + (var(--page-gutter-x, var(--pui-space-5, 1rem)) * 2));
    margin-inline: auto;
    width: 100%;
}

.footer-top,
.footer-legal {
    padding-inline: var(--page-gutter-x, var(--pui-space-5, 1rem));
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 24px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: 8px;
}

.footer-column h4 {
    margin: 0 0 8px;
    font-size: 14px;
    font-weight: 700;
    color: var(--pui-color-text-muted, var(--text_muted));
    text-transform: uppercase;
    letter-spacing: var(--pui-letter-spacing-caps, 0.04em);
}

.footer-links a {
    color: var(--pui-color-text-muted, var(--text_muted));
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    border-radius: var(--pui-radius-sm, 0.375rem);
    transition: color var(--pui-motion-fast, 160ms ease);
}

.footer-links a:hover,
.footer-terms:hover {
    color: var(--accent);
}

.footer-legal {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 16px;
    margin-top: 12px;
    font-size: 14px;
    color: var(--pui-color-text-muted, var(--text_muted));
}

.footer-terms {
    color: var(--pui-color-text-muted, var(--text_muted));
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--pui-radius-sm, 0.375rem);
    transition: color var(--pui-motion-fast, 160ms ease);
}

.footer-bar {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    text-align: center;
    height: 40px;
    background-color: var(--surface_alt);
    border-top: 1px solid var(--border);
}

.footer-bar-container {
    height: 100%;
    padding: 5px 0;
    max-width: calc(var(--page-max-width, var(--pui-breakpoint-xl, 1280px)) + (var(--page-gutter-x, var(--pui-space-5, 1rem)) * 2));
    margin: 0 auto;
    padding-inline: var(--page-gutter-x, var(--pui-space-5, 1rem));
    box-sizing: border-box;
}

.footer-shell--wrapped .footer-top {
    align-items: start;
}

.footer-shell--wrapped .footer-column {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-shell--wrapped .footer-column h4 {
    margin: 0;
}

.footer-shell--wrapped .footer-links {
    flex-flow: row wrap;
    gap: 8px 16px;
}

.footer-shell--wrapped .footer-links li {
    display: flex;
}

@media (max-width: 768px) {
    .footer-shell--wrapped .footer-links {
        flex-direction: column;
        gap: 8px;
    }

    .footer-shell--wrapped .footer-links li {
        display: block;
    }
}

@media (max-width: 900px) {
    .nav-container {
        flex-wrap: wrap;
    }

    .nav-toggle {
        display: flex;
        margin-left: auto;
    }

    .nav-scrim {
        display: block;
        position: fixed;
        inset: 0;
        background: var(--pui-color-scrim, rgba(17, 24, 39, 0.45));
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--pui-motion-fast, 0.2s ease);
        z-index: 1000;
    }

    .nav-scrim.open {
        opacity: 1;
        pointer-events: auto;
    }

    .nav-links {
        position: fixed;
        inset: 0 0 0 auto;
        height: 100vh;
        height: 100dvh;
        max-height: 100vh;
        max-height: 100dvh;
        width: min(320px, 85vw);
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
        display: flex;
        padding: 20px;
        background: color-mix(in srgb, var(--pui-color-nav-background, var(--surface)) 88%, transparent);
        -webkit-backdrop-filter: blur(6px);
        backdrop-filter: blur(6px);
        transform: translateX(100%);
        transition: transform var(--pui-motion-medium, 0.2s ease);
        box-shadow: var(--pui-shadow-raised, 0 12px 24px rgba(0, 0, 0, 0.12));
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        pointer-events: none;
        visibility: hidden;
        will-change: transform;
        contain: layout paint;
        z-index: 1001;
    }

    .nav-links.open {
        transform: translateX(0);
        pointer-events: auto;
        visibility: visible;
    }

    .nav-close {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        align-self: flex-end;
        background: none;
        border: 0;
        border-radius: var(--pui-radius-sm, 0.375rem);
        font-size: 26px;
        line-height: 1;
        padding: 4px;
        min-width: var(--pui-touch-target-min, 2.75rem);
        min-height: var(--pui-touch-target-min, 2.75rem);
        cursor: pointer;
    }

    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
    }

    .nav-actions {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
    }

    .nav-status-dot {
        display: none;
    }

    .nav-sublist {
        position: static;
        display: none;
        width: 100%;
        margin-top: 8px;
        box-shadow: none;
    }

    /* Grouped columns stack inside the mobile drawer. */
    .nav-sublist--groups {
        flex-direction: column;
        gap: 18px;
    }

    .nav-sublist-back {
        display: block;
    }
}