maud-ui 0.2.0

/* shell::sidebar block.
   Full app chrome: 16rem vertical nav + content column with sticky
   topbar. Responsive at 768px → sidebar collapses to a top hamburger
   (in a full integration you'd swap it for a drawer; the preview shows
   the collapsed state so mobile screenshots still look good). */

.mui-block--shell {
    /* Override the generic .mui-block__frame centering — the shell
       wants to fill edge-to-edge. */
    display: grid;
    grid-template-columns: 16rem 1fr;
    min-height: 40rem;
    background: var(--mui-bg);
    border: 1px solid var(--mui-border);
    border-radius: var(--mui-radius-lg);
    overflow: hidden;
    isolation: isolate;
}

/* ── Sidebar ──────────────────────────────────────────────────── */

.mui-block--shell__sidebar {
    display: flex;
    flex-direction: column;
    background: var(--mui-bg-card);
    border-inline-end: 1px solid var(--mui-border);
    min-width: 0;
}

.mui-block--shell__brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.125rem;
    border-bottom: 1px solid var(--mui-border);
    color: var(--mui-text);
    font-size: 0.9375rem;
    flex-shrink: 0;
}

.mui-block--shell__brand-mark {
    display: inline-flex;
    color: var(--mui-accent-text);
    flex-shrink: 0;
}

.mui-block--shell__brand-name {
    font-weight: 600;
    letter-spacing: -0.01em;
}

/* Nav takes all remaining vertical space between brand + user */
.mui-block--shell__nav {
    flex: 1;
    padding: 0.75rem 0.5rem;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    scrollbar-width: thin;
    scrollbar-color: var(--mui-border) transparent;
}

.mui-block--shell__nav::-webkit-scrollbar {
    width: 6px;
}
.mui-block--shell__nav::-webkit-scrollbar-thumb {
    background: var(--mui-border);
    border-radius: 3px;
}

.mui-block--shell__nav-group {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.mui-block--shell__nav-group-label {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--mui-text-subtle);
    padding: 0 0.75rem;
    margin-bottom: 0.25rem;
}

.mui-block--shell__nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.0625rem;
}

.mui-block--shell__nav-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.4375rem 0.75rem;
    font-size: 0.875rem;
    color: var(--mui-text-muted);
    text-decoration: none;
    border-radius: var(--mui-radius-md);
    transition: background-color var(--mui-transition), color var(--mui-transition);
    min-width: 0;
}

.mui-block--shell__nav-item:hover {
    background: var(--mui-bg-input);
    color: var(--mui-text);
}

.mui-block--shell__nav-item--active {
    background: var(--mui-bg-input);
    color: var(--mui-text);
    font-weight: 500;
}

.mui-block--shell__nav-icon {
    display: inline-flex;
    flex-shrink: 0;
    color: inherit;
    opacity: 0.85;
}

.mui-block--shell__nav-item--active .mui-block--shell__nav-icon {
    color: var(--mui-accent-text);
    opacity: 1;
}

.mui-block--shell__nav-label {
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mui-block--shell__nav-badge {
    font-size: 0.6875rem;
    font-weight: 500;
    padding: 0.0625rem 0.4375rem;
    background: var(--mui-bg);
    border: 1px solid var(--mui-border);
    border-radius: var(--mui-radius-full);
    color: var(--mui-text-muted);
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
}

/* User footer — same visual language as nav items but pinned to
   bottom and with an avatar + two lines of text. */
.mui-block--shell__user {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.75rem 0.875rem;
    border-top: 1px solid var(--mui-border);
    text-decoration: none;
    color: var(--mui-text);
    transition: background-color var(--mui-transition);
    flex-shrink: 0;
}

.mui-block--shell__user:hover {
    background: var(--mui-bg-input);
}

.mui-block--shell__user-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: var(--mui-radius-full);
    background: linear-gradient(135deg, var(--mui-accent), var(--mui-accent-hover));
    color: var(--mui-accent-fg);
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    letter-spacing: 0.02em;
}

.mui-block--shell__user-text {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    line-height: 1.25;
}

.mui-block--shell__user-name {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--mui-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mui-block--shell__user-email {
    font-size: 0.75rem;
    color: var(--mui-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mui-block--shell__user-caret {
    color: var(--mui-text-subtle);
    flex-shrink: 0;
}

/* ── Main column ─────────────────────────────────────────────── */

.mui-block--shell__main {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
}

.mui-block--shell__topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.875rem 1.5rem;
    border-bottom: 1px solid var(--mui-border);
    background: var(--mui-bg);
    flex-shrink: 0;
}

.mui-block--shell__topbar-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--mui-text);
    letter-spacing: -0.01em;
}

.mui-block--shell__topbar-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mui-block--shell__content {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
    background: var(--mui-bg);
}

/* ── Responsive ──────────────────────────────────────────────── */

@media (max-width: 768px) {
    .mui-block--shell {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
    }

    .mui-block--shell__sidebar {
        flex-direction: row;
        align-items: center;
        gap: 0.5rem;
        border-inline-end: none;
        border-bottom: 1px solid var(--mui-border);
        padding: 0.5rem 0.75rem;
        overflow-x: auto;
    }

    .mui-block--shell__brand {
        padding: 0;
        border-bottom: none;
        flex-shrink: 0;
    }

    /* Collapse nav into a horizontal strip on mobile. In a real app
       you'd swap this for a drawer trigger — this keeps the preview
       honest at small widths without requiring JS in the gallery. */
    .mui-block--shell__nav {
        flex: 1;
        flex-direction: row;
        padding: 0;
        gap: 0.25rem;
        overflow-x: auto;
        overflow-y: hidden;
    }

    .mui-block--shell__nav-group {
        flex-direction: row;
        gap: 0.125rem;
    }

    .mui-block--shell__nav-group-label { display: none; }

    .mui-block--shell__nav-list {
        flex-direction: row;
    }

    .mui-block--shell__nav-item {
        padding: 0.375rem 0.625rem;
        white-space: nowrap;
    }

    .mui-block--shell__nav-label {
        display: none;
    }

    /* User footer: collapse to just the avatar on the right */
    .mui-block--shell__user {
        border-top: none;
        padding: 0;
        gap: 0;
        flex-shrink: 0;
    }
    .mui-block--shell__user-text,
    .mui-block--shell__user-caret {
        display: none;
    }

    .mui-block--shell__topbar {
        padding: 0.75rem 1rem;
    }
    .mui-block--shell__content {
        padding: 1rem;
    }
}