/* Top header bar */
.app-header {
    height: var(--header-height);
    flex-shrink: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: 0 var(--spacing-8);
    position: relative;
    /* Lift the header (and its omni-search / cog dropdowns) above page content.
       The centred search's transform makes its own stacking context, so the panel's
       z-index alone can't beat later positioned content (chart toggles, tooltips at 99).
       Stays below the modals (900+). */
    z-index: 200;
}
.header__search {
    position: relative;
    display: flex;
    align-items: center;
}
/* Centre the top-bar search only. Other reuses of this class (e.g. the dashboard
   table filter) stay in normal flow so they don't follow the page on scroll. */
.app-header .header__search {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 480px;
    max-width: 40%;
}
.header__search .icon {
    position: absolute;
    left: var(--spacing-3);
    color: var(--color-text-muted);
    pointer-events: none;
}
.header__search input {
    width: 100%;
    padding: var(--spacing-2) var(--spacing-3) var(--spacing-2) calc(var(--spacing-8) + 2px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    background: var(--color-surface-alt);
    font-size: var(--font-size-sm);
}
.header__search input:focus { background: var(--color-surface); border-color: var(--color-primary); outline: none; }
/* Omni-search results dropdown (inside the top-bar search) */
.omni-search__panel {
    position: absolute;
    top: calc(100% + var(--spacing-2));
    left: 0;
    right: 0;
    max-height: min(420px, 60vh);
    overflow-y: auto;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-2);
    z-index: 60;
}
.omni-search__panel[hidden] { display: none; }
.omni-search__heading {
    padding: var(--spacing-2) var(--spacing-3) var(--spacing-1);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-label);
    color: var(--color-text-muted);
}
.omni-search__item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-3);
    width: 100%;
    text-align: left;
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    cursor: pointer;
}
.omni-search__item.is-active { background: var(--color-surface-alt); }
.omni-search__main {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-2);
    min-width: 0;
}
.omni-search__number {
    font-weight: var(--font-weight-semibold);
    white-space: nowrap;
}
.omni-search__name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.omni-search__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    flex-shrink: 0;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}
.omni-search__client {
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.omni-search__empty {
    padding: var(--spacing-4) var(--spacing-3);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}
.header__actions { display: flex; align-items: center; gap: var(--spacing-2); margin-left: auto; }

/* The menu toggle, first in the header: one glyph while the menu shows, the other while it is hidden. */
.icon-button {
    width: 38px; height: 38px;
    border-radius: var(--radius-sm);
    display: grid; place-items: center;
    color: var(--color-text-secondary);
    position: relative;
}
.icon-button:hover { background: var(--color-surface-alt); color: var(--color-text); }
.icon-button .badge-dot {
    position: absolute; top: 8px; right: 9px;
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--color-danger);
    border: 2px solid var(--color-surface);
}
/* Settings (cog) dropdown */
.header-menu { position: relative; }
.header-menu__panel {
    position: absolute;
    top: calc(100% + var(--spacing-2));
    right: 0;
    min-width: 200px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-2);
    z-index: 50;
}
.header-menu__panel[hidden] { display: none; }
.header-menu__title {
    display: block;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-label);
    color: var(--color-text-muted);
}
.header-menu__item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text);
}
.header-menu__item:hover { background: var(--color-surface-alt); }
.header-menu__item .icon { color: var(--color-text-secondary); }

.user-chip {
    display: flex; align-items: center; gap: var(--spacing-3);
    padding: var(--spacing-1) var(--spacing-2) var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-pill);
}
.user-chip:hover { background: var(--color-surface-alt); }
.user-chip__meta { display: flex; flex-direction: column; text-align: right; line-height: 1.2; }
.user-chip__name { font-weight: var(--font-weight-semibold); font-size: var(--font-size-sm); }
.user-chip__role {
    font-size: var(--font-size-xs); color: var(--color-text-muted);
    text-transform: uppercase; letter-spacing: var(--letter-spacing-label);
}
.avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--color-brand-navy); color: #fff;
    display: grid; place-items: center;
    font-weight: var(--font-weight-semibold); font-size: var(--font-size-sm);
    flex-shrink: 0; overflow: hidden;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }

/* ── Position preview banner (development-only "View as") ─────────────────────
   Sits between the header and the page so it is impossible to forget you are looking through another
   role's eyes; the reset lives here so it is reachable from pages the previewed role can't open. */
.preview-banner {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-3);
    padding: var(--spacing-2) var(--spacing-5);
    background: var(--color-warning-bg);
    color: var(--color-warning);
    border-bottom: 1px solid var(--color-warning);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}
.preview-banner form { margin-left: auto; }

/* Phone: no room for the centred search, the bell or the cog — they'd slide under each other and the user chip,
   so only the chip stays. Scoped to .app-header: .header__search is reused in page filter bars. */
@media (max-width: 640px) {
    .app-header .header__search,
    .app-header .header-menu { display: none; }
}

/* The search box on register pages sits narrower than the header's. */
.header__search--narrow { max-width: 260px; }