/* ── Top bar shell ───────────────────────────────────────────── */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-8);
    background: var(--color-white);
    border-bottom: 1px solid #e8e8e8;
    /* Sits above dropdown backdrop */
    position: relative;
    z-index: 100;
}

/* ── Page title area (left/centre) ──────────────────────────── */
.topbar__page-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.topbar__title {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-heading);
    line-height: 1.2;
}

.topbar__subtitle {
    margin: 0;
    font-size: 0.85rem;
    color: #666666;
    line-height: 1.4;
}

/* ── User area (right) ───────────────────────────────────────── */
.topbar__user {
    position: relative;
    flex-shrink: 0;
}

.topbar__user-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--space-2);
    /* Subtle hover state */
    transition: background 0.15s ease;
}

.topbar__user-btn:hover {
    background: var(--color-surface-alt);
}

.topbar__user-details {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-1);
}

.topbar__user-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-heading);
    line-height: 1.2;
}

.topbar__customer-number {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    line-height: 1.2;
}

/* ── Chevron ─────────────────────────────────────────────────── */
.topbar__chevron {
    font-size: 1.1rem;
    color: #444444;
    line-height: 1;
    display: inline-block;
    transition: transform 0.2s ease;
    /* Optical alignment */
    margin-top: var(--space-1);
}

.topbar__chevron--open {
    transform: rotate(180deg);
}

/* ── Dropdown menu ───────────────────────────────────────────── */
.topbar__dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 10rem;
    background: var(--color-white);
    border: 1px solid #e0e0e0;
    border-radius: var(--space-2);
    box-shadow: 0 0.25rem 1rem var(--color-border-hairline);
    overflow: hidden;
    z-index: 200;
}

.topbar__dropdown-item {
    display: block;
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: none;
    border: none;
    text-align: left;
    font-size: 0.875rem;
    color: #222222;
    cursor: pointer;
    transition: background 0.15s ease;
}

.topbar__dropdown-item:hover {
    background: var(--color-surface-alt);
}

/* ── Backdrop (closes dropdown on outside click) ─────────────── */
.topbar__backdrop {
    position: fixed;
    inset: 0;
    z-index: 99;
}