.skip-link {
    position: fixed;
    z-index: 20;
    top: var(--space-2);
    left: var(--space-2);
    transform: translateY(-160%);
    border-radius: var(--radius-s);
    padding: var(--space-2) var(--space-3);
    background: var(--color-surface);
    color: var(--color-text);
}

.skip-link:focus {
    transform: translateY(0);
}

.topbar {
    position: sticky;
    z-index: 5;
    top: 0;
    display: grid;
    grid-template-columns: 3rem minmax(0, 1fr) auto;
    align-items: center;
    gap: var(--space-2);
    min-height: 4rem;
    padding: max(var(--space-2), env(safe-area-inset-top)) max(var(--space-3), env(safe-area-inset-right)) var(--space-2) max(var(--space-3), env(safe-area-inset-left));
    background: var(--color-primary);
    color: var(--color-primary-contrast);
}

.menu-toggle {
    display: none;
    place-items: center;
    width: var(--touch-target);
    height: var(--touch-target);
    border: 1px solid var(--color-on-primary-border);
    border-radius: var(--radius-s);
    background: transparent;
    color: var(--color-primary-contrast);
}

.menu-capable .menu-toggle {
    display: inline-grid;
}

.menu-toggle svg {
    width: 1.5rem;
    height: 1.5rem;
}

.topbar-title {
    overflow: hidden;
    color: inherit;
    font-weight: 700;
    text-decoration: none;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-summary {
    max-width: 8rem;
    overflow: hidden;
    font-size: var(--font-small);
    text-overflow: ellipsis;
    white-space: nowrap;
}

.page {
    width: min(calc(100% - var(--space-4) - var(--space-4)), 72rem);
    min-height: calc(100vh - 4rem);
    margin: 0 auto;
    padding: var(--space-5) 0 calc(var(--space-6) + env(safe-area-inset-bottom));
}

.page-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

summary {
    display: flex;
    align-items: center;
    min-height: var(--touch-target);
    cursor: pointer;
    font-weight: 700;
}

body.menu-open {
    overflow: hidden;
}

.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
    color: var(--color-muted);
    font-size: var(--font-small);
}

.menu-backdrop {
    position: fixed;
    z-index: 8;
    inset: 0;
    background: var(--color-overlay);
    display: none;
}

.menu-panel {
    position: static;
    width: auto;
    overflow: visible;
    padding: var(--space-3);
    background: var(--color-surface);
    box-shadow: none;
}

.menu-capable .menu-panel {
    position: fixed;
    z-index: 9;
    inset: 0 auto 0 0;
    width: min(85vw, 24rem);
    overflow: hidden;
    padding: var(--space-5) var(--space-3);
    padding-bottom: max(var(--space-5), env(safe-area-inset-bottom));
    background: var(--color-surface);
    box-shadow: var(--shadow-2);
    display: none;
}

.menu-capable.menu-open .menu-panel {
    display: block;
}

.menu-capable.menu-open .menu-backdrop {
    display: block;
}

.menu-level {
    height: 100%;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.menu-level-child {
    position: absolute;
    inset: 0;
    padding: var(--space-5) var(--space-3);
    background: var(--color-surface);
}

.menu-list {
    display: grid;
    gap: var(--space-2);
    margin: 0;
    padding: 0;
    list-style: none;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    width: 100%;
    min-height: 3.25rem;
    border: 0;
    border-radius: var(--radius-s);
    padding: var(--space-2) var(--space-3);
    background: transparent;
    color: var(--color-text);
    text-align: left;
    text-decoration: none;
    cursor: pointer;
}

.menu-item:hover,
.menu-item.is-active {
    background: var(--color-accent);
}

.menu-item[aria-current="page"] {
    box-shadow: inset 3px 0 var(--color-primary);
    font-weight: 700;
}

.menu-item svg {
    flex: 0 0 1.5rem;
    width: 1.5rem;
    height: 1.5rem;
    color: var(--color-primary);
}

.menu-next > span:first-of-type {
    flex: 1;
}

.menu-chevron {
    margin-left: auto;
    font-size: 1.5rem;
}

.menu-back {
    min-height: 44px;
    margin-bottom: var(--space-3);
    border: 0;
    background: transparent;
    color: var(--color-primary);
    font-weight: 700;
}

.menu-back span {
    font-size: 1.4rem;
    vertical-align: -0.08em;
}

.menu-panel[hidden],
.menu-backdrop[hidden] {
    display: none;
}

.auth-header {
    padding: var(--space-4);
    background: var(--color-primary);
    color: var(--color-primary-contrast);
    text-align: center;
}

.auth-header a {
    color: inherit;
    font-weight: 700;
    text-decoration: none;
}

.auth-main {
    display: grid;
    align-content: start;
    max-width: 46rem;
}

.narrow {
    max-width: 32rem;
    margin: var(--space-5) auto;
}

@media (min-width: 48rem) {
    .card-grid {
        grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
    }

    .page {
        padding-top: var(--space-6);
    }
}

@media (min-width: 64rem) {
    .menu-capable .menu-panel {
        width: 20rem;
    }
}