/* =============================================================
   OV-NAV — Theme-aware navigation bar
   All colours reference --ov-* tokens from orthavax-theme.css.
   No hardcoded colour values.
   ============================================================= */

/* ── Header bar ─────────────────────────────────────────────── */
.ov-navbar {
    background: var(--ov-nav-bg);
    border-bottom: 1px solid var(--ov-nav-border);
    box-shadow: var(--ov-shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background 0.20s ease, border-color 0.20s ease;
}

.ov-navbar-inner {
    display: flex;
    align-items: center;
    padding: 0 20px;
    height: 60px;
    gap: 4px;
}

/* ── Brand / Logo ────────────────────────────────────────────── */
.ov-navbar-brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    margin-right: 12px;
    text-decoration: none;
}

    .ov-navbar-brand:hover {
        text-decoration: none;
        opacity: 0.90;
    }

    .ov-navbar-brand img {
        display: block;
        height: 46px;
        width: auto;
    }

/* ── Horizontal menu list ────────────────────────────────────── */
.ov-navbar-menu {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 2px;
    flex: 1;
}

/* ── Individual nav item ─────────────────────────────────────── */
.ov-nav-item {
    position: relative;
}

/* ── Nav link (shared by <a> and <button> top-level items) ───── */
.ov-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 7px 11px;
    border-radius: 6px;
    border: none;
    background: transparent;
    color: var(--ov-nav-text);
    font-size: 0.95rem;
    font-family: inherit;
    font-weight: 500;
    line-height: 1.4;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.12s ease, color 0.12s ease;
}

    .ov-nav-link:hover,
    .ov-nav-link:focus-visible {
        background: var(--ov-nav-item-hover);
        color: var(--ov-nav-text-active);
        text-decoration: none;
        outline: none;
    }

    /* Active page highlight */
    .ov-nav-item.ov-nav-active > .ov-nav-link,
    .ov-nav-link.ov-nav-active {
        background: var(--ov-nav-item-active);
        color: var(--ov-nav-text-active);
    }

    /* Dropdown open state — keep toggle highlighted */
    .ov-nav-item.ov-open > .ov-nav-toggle {
        background: var(--ov-nav-item-active);
        color: var(--ov-nav-text-active);
    }

/* ── Dropdown caret ──────────────────────────────────────────── */
.ov-nav-caret {
    display: inline-block;
    font-size: 0.7rem;
    line-height: 1;
    margin-left: 1px;
    transition: transform 0.18s ease;
    opacity: 0.6;
}

.ov-nav-item.ov-open > .ov-nav-toggle .ov-nav-caret {
    transform: rotate(180deg);
    opacity: 1;
}

/* ── Dropdown panel ──────────────────────────────────────────── */
.ov-nav-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 210px;
    list-style: none;
    margin: 0;
    padding: 4px 0;
    background: var(--ov-surface-raised);
    border: 1px solid var(--ov-border);
    border-radius: 8px;
    box-shadow: var(--ov-shadow-md);
    z-index: 1010;
}

.ov-nav-item.ov-open > .ov-nav-dropdown {
    display: block;
}

/* ── Dropdown items ──────────────────────────────────────────── */
.ov-nav-dropdown-item {
    margin: 0;
}

    .ov-nav-dropdown-item a {
        display: block;
        padding: 8px 16px;
        color: var(--ov-nav-text);
        font-size: 0.90rem;
        text-decoration: none;
        white-space: nowrap;
        transition: background 0.10s ease, color 0.10s ease;
    }

        .ov-nav-dropdown-item a:hover {
            background: var(--ov-nav-item-hover);
            color: var(--ov-nav-text-active);
            text-decoration: none;
        }

/* ── Dropdown divider ────────────────────────────────────────── */
.ov-nav-divider {
    border: none;
    border-top: 1px solid var(--ov-border-subtle);
    margin: 4px 8px;
}

/* ── Client # quick-lookup row ───────────────────────────────── */
.ov-nav-client-lookup {
    padding: 6px 12px;
}

.ov-nav-client-lookup-inner {
    display: flex;
    align-items: center;
    gap: 6px;
}

.ov-nav-client-input {
    width: 110px;
    padding: 4px 8px;
    font-size: 0.85rem;
    background: var(--ov-input-bg);
    border: 1px solid var(--ov-input-border);
    border-radius: 5px;
    color: var(--ov-input-text);
    transition: border-color 0.12s ease, box-shadow 0.12s ease;
}

    .ov-nav-client-input::placeholder {
        color: var(--ov-input-placeholder);
    }

    .ov-nav-client-input:focus {
        border-color: var(--ov-input-border-focus);
        box-shadow: 0 0 0 3px var(--ov-focus-ring);
        outline: none;
    }

.ov-nav-client-go {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 8px;
    background: var(--ov-brand);
    color: var(--ov-brand-text);
    border: none;
    border-radius: 5px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.12s ease;
    flex-shrink: 0;
}

    .ov-nav-client-go:hover {
        background: var(--ov-brand-hover);
    }

/* ── Right end (theme toggle + logout) ───────────────────────── */
.ov-navbar-end {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
    flex-shrink: 0;
}

/* ── Responsive: hide menu on small screens ─────────────────── */
@media (max-width: 768px) {
    .ov-navbar-menu {
        display: none;
    }

    .ov-navbar-inner {
        padding: 0 12px;
    }
}