/* ========================================================
   NetWorth Design System
   layout.css – app shell, sidebar, topbar
   ======================================================== */

/* App shell */

.app-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: row;
    background: var(--color-bg-page);
}

/* Sidebar */

.sidebar {
    width: 260px;
    flex-shrink: 0;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border-subtle);
    box-shadow: 0 4px 32px rgba(15, 23, 42, 0.06);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar-header {
    padding: 16px 16px 12px;
    border-bottom: 1px solid var(--color-border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-title {
    font-size: var(--font-size-md);
    font-weight: 600;
}

.sidebar-main {
    flex: 1;
    padding: 12px 10px 16px;
    overflow-y: auto;
}

.sidebar-section {
    margin-bottom: 12px;
}

.sidebar-section-label {
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-soft);
    padding: 4px 10px;
}

.sidebar-nav {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-item {
    margin: 2px 0;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    text-decoration: none;
}

.sidebar-link:hover {
    background: #f3f4f6;
    color: var(--color-text-main);
}

.sidebar-link-active {
    background: #ecfdf3;
    color: var(--color-primary-strong);
}

.sidebar-link-icon {
    width: 18px;
    text-align: center;
}

/* Sidebar footer */

.sidebar-footer {
    padding: 10px 12px;
    border-top: 1px solid var(--color-border-subtle);
    font-size: var(--font-size-xs);
    color: var(--color-text-soft);
}

/* Main area */

.app-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

/* Top bar */

.topbar {
    height: 56px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-border-subtle);
    background: var(--color-surface);
    position: sticky;
    top: 0;
    z-index: 10;
}

.topbar-title {
    font-size: var(--font-size-lg);
    font-weight: 500;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Content */

.page-content {
    padding: 24px 24px 32px;
}

/* Responsive sidebar collapse (class-based; you can toggle .sidebar-collapsed on shell) */

@media (max-width: 900px) {
    .app-shell {
        flex-direction: column;
    }

    .sidebar {
        position: relative;
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--color-border-subtle);
    }

    .app-main {
        flex: 1;
    }
}