.branch-shell {
    display: grid;
    width: min(100%, 1440px);
    grid-template-columns: 280px minmax(0, 1fr);
    gap: clamp(1rem, 3vw, 2rem);
    margin: 0 auto;
    padding: clamp(1rem, 3vw, 2.4rem);
}

.sidebar {
    align-self: start;
    overflow: hidden;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: rgba(7, 17, 25, 0.88);
    box-shadow: var(--shadow-panel);
}

.sidebar__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem;
    border-bottom: 1px solid var(--color-border);
}

.sidebar__title {
    color: var(--color-silver);
    font-weight: 800;
}

.sidebar__toggle {
    display: grid;
    width: 36px;
    height: 36px;
    place-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: rgba(0, 214, 255, 0.08);
}

.sidebar__toggle span,
.sidebar__toggle::before,
.sidebar__toggle::after {
    display: block;
    width: 16px;
    height: 2px;
    border-radius: 2px;
    background: var(--color-cyan);
    content: "";
}

.sidebar__toggle {
    gap: 3px;
}

.sidebar__nav {
    display: grid;
    gap: 0.25rem;
    padding: 0.7rem;
}

.sidebar__link {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    align-items: center;
    gap: 0.65rem;
    min-height: 46px;
    padding: 0 0.7rem;
    border-radius: var(--radius-sm);
    color: var(--color-muted);
    text-decoration: none;
}

.sidebar__link:hover,
.sidebar__link.is-active {
    background: rgba(0, 214, 255, 0.09);
    color: var(--color-text);
}

.sidebar__icon {
    display: grid;
    width: 28px;
    height: 28px;
    place-items: center;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-cyan);
    font-size: 0.72rem;
    font-weight: 900;
}

.sidebar.is-collapsed {
    width: 72px;
}

.sidebar.is-collapsed .sidebar__title,
.sidebar.is-collapsed .sidebar__text {
    display: none;
}

.branch-shell:has(.sidebar.is-collapsed) {
    grid-template-columns: 72px minmax(0, 1fr);
}

@media (max-width: 840px) {
    .branch-shell,
    .branch-shell:has(.sidebar.is-collapsed) {
        grid-template-columns: 1fr;
    }

    .sidebar,
    .sidebar.is-collapsed {
        width: 100%;
    }

    .sidebar.is-collapsed .sidebar__nav {
        display: none;
    }

    .sidebar.is-collapsed .sidebar__title {
        display: inline;
    }
}