/* =============================================================================
   USM Library — global + staff layout responsiveness
   Load after Bootstrap and (for staff) css/books/index.css
   ============================================================================= */

html {
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
}

img,
video {
    max-width: 100%;
    height: auto;
}

/* Staff top bar (layouts main / sec / app) */
.staff-top-bar {
    position: relative;
    z-index: 1030;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem 0.5rem;
    padding-left: clamp(0.75rem, 2vw, 1.25rem) !important;
    padding-right: clamp(0.75rem, 2vw, 1.25rem) !important;
}

.staff-top-bar > a:first-of-type,
.staff-top-bar > a[href*="book.index"] {
    flex-shrink: 0;
}

.staff-top-bar .header-logo-img {
    margin-left: 0 !important;
    width: auto !important;
    max-width: min(140px, 38vw);
    height: auto;
    max-height: 44px;
    object-fit: contain;
}

.staff-top-bar .school-name {
    min-width: 0;
    flex: 1 1 auto;
    font-size: clamp(0.85rem, 2.5vw, 1.3rem);
}

.staff-top-bar .toggle-btn,
.staff-top-bar .close-btn {
    flex-shrink: 0;
}

/* Main content: readable line length on ultra-wide monitors */
main .container,
body > .container.py-3 {
    max-width: min(100%, 1400px);
}

/* Data tables: horizontal scroll on small screens */
main .table-responsive {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
}

/* --------------------------------------------------------------------------
   Collapsible nav — matches Bootstrap lg (992px)
   -------------------------------------------------------------------------- */
@media (max-width: 991.98px) {
    #routeWrapper {
        display: none !important;
        flex-direction: column;
        align-items: stretch;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: #fff;
        width: 100%;
        max-height: min(85vh, 640px);
        overflow-y: auto;
        padding: 1rem;
        z-index: 1040;
        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
        text-align: left;
        gap: 0.35rem !important;
    }

    #routeWrapper.open {
        display: flex !important;
    }

    #customMenuToggle {
        display: block !important;
        margin-left: auto;
    }

    #customMenuClose {
        display: block !important;
        align-self: flex-end;
        margin-bottom: 0.5rem;
    }

    /* Stack nav controls full width */
    #routeWrapper > a,
    #routeWrapper > form {
        width: 100%;
        text-align: center;
    }

    #routeWrapper .btn5 {
        width: 100%;
        margin-top: 0.5rem;
    }

    /* Dropdowns: static lists (touch-friendly; no hover reliance) */
    #routeWrapper.open .logs_dropdown,
    #routeWrapper.open .attendance_dropdown {
        width: 100%;
        border-bottom: 1px solid #eee;
        padding-bottom: 0.5rem;
    }

    #routeWrapper.open .logs_dropdown-button,
    #routeWrapper.open .attendance_dropdown-button {
        width: 100%;
        text-align: left;
        margin-top: 0;
    }

    #routeWrapper.open .logs_dropdown-content,
    #routeWrapper.open .attendance_dropdown-content {
        display: block !important;
        position: static !important;
        width: 100%;
        min-width: 0;
        box-shadow: none;
        border-left: 3px solid #1f7902;
        margin-top: 0.35rem;
        padding-left: 0.25rem;
    }

    #routeWrapper.open .logs_dropdown:hover .logs_dropdown-content,
    #routeWrapper.open .attendance_dropdown:hover .attendance_dropdown-content {
        display: block !important;
    }
}

@media (min-width: 992px) {
    #customMenuToggle,
    #customMenuClose {
        display: none !important;
    }
}

/* Banner under staff header — show full image (no crop) */
.head {
    width: 100%;
    line-height: 0;
}

.head .banner-img,
.staff-top-bar + .head .banner-img {
    width: 100%;
    height: auto;
    max-width: 100%;
    display: block;
}

/* OPAC landing (public) header — no fixed left margin */
.opac-public-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.65rem clamp(0.75rem, 3vw, 2rem);
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
}

.opac-logo-wrap {
    margin-left: 0 !important;
}

.opac-logo-wrap img {
    max-height: 48px;
    width: auto;
}

@media (max-width: 576px) {
    #cartButton {
        right: 12px !important;
        bottom: 16px !important;
        padding: 10px 16px !important;
        font-size: 0.9rem !important;
    }
}