.app-sidebar {
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: 18px 14px;
    background: #f3f4f6;
    border-right: 1px solid #e5e7eb;
}

.app-sidebar__brand {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px 8px 20px;
}

.app-sidebar__brand-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
}

.app-sidebar__logo {
    display: block;
    max-width: 150px;
    max-height: 48px;
    object-fit: contain;
}

.app-sidebar__nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.app-sidebar__item {
    width: 100%;
    min-height: 42px;
    display: flex;
    align-items: center;
    padding: 0 14px;

    border: 0;
    border-radius: 8px;
    background: transparent;

    font: inherit;
    font-size: 14px;
    text-align: left;
    color: #374151;

    cursor: pointer;
}

.app-sidebar__item:hover {
    background: #e5e7eb;
}

.app-sidebar__item.is-active {
    background: #ffffff;
    color: #111827;
    font-weight: 600;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

.app-sidebar__item[hidden] {
    display: none;
}

.app-sidebar__spacer {
    flex: 1;
}

.app-workspace-placeholder {
    padding: 24px 28px;
}

.app-workspace-placeholder h1 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    color: #111827;
}