/* ================================================================
   SBU Mega Menu — Styles
   Desktop: transparent bar, compact triggers, clean mega panels
   Mobile:  hamburger → slide-in drawer → accordion sections
   WCAG 2.1 AA compliant — all contrast ratios ≥ 4.5:1
   ================================================================ */

/* ── CSS Variables ── */
.sbu-mm {
    --mm-navy:       #0B2041;
    --mm-red:        #990000;
    --mm-red-hover:  #cc0000;
    --mm-white:      #ffffff;
    --mm-gray:       #f7f7f8;
    --mm-border:     #e2e4e8;
    --mm-text:       #333333;
    --mm-focus:      #0B2041;
    --mm-shadow:     0 8px 30px rgba(11, 32, 65, 0.12);
    --mm-transition: 0.25s cubic-bezier(0.22, 0.61, 0.36, 1);
    --mm-max-width:  1280px;
    --mm-z-panel:    99990;
    --mm-z-overlay:  999999;
    --mm-z-drawer:   1000000;
}

/* ── Reset ── */
.sbu-mm,
.sbu-mm *,
.sbu-mm *::before,
.sbu-mm *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.sbu-mm ul { list-style: none; }

/* ================================================================
   NAV BAR
   ================================================================ */
.sbu-mm {
    position: relative;
    width: 100%;
    font-family: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
}

.sbu-mm-bar {
    background: transparent;
    width: 100%;
    border: none;
}


.sbu-mm-list {
    display: flex;
    align-items: stretch;
    justify-content: flex-end;
    flex-wrap: wrap;
    max-width: var(--mm-max-width);
    margin: 0 auto;
    padding: 0;
    gap: 0;
}

.sbu-mm-fallback {
    color: var(--mm-text);
    padding: 8px 16px;
    font-size: 16px;
}

/* ================================================================
   TOP-LEVEL TRIGGERS (desktop)
   Compact padding, readable size, high-contrast focus
   ================================================================ */
.sbu-mm-top-item {
    position: static;
}

.sbu-mm-trigger {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 10px;
    background: transparent !important;
    border: none !important;
    color: var(--mm-navy) !important;
    font-size: 14px !important;
    font-weight: 600 !important;
    cursor: pointer;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0;
    font-family: inherit;
    line-height: 1.4;
    text-decoration: none !important;
    border-radius: 0;
    transition: none;
    -webkit-appearance: none;
    appearance: none;
    box-shadow: none !important;
}

/* Hover — ONLY the caret flips. Nothing else changes. */
.sbu-mm-trigger:hover,
.sbu-mm-trigger:active {
    background: transparent !important;
    color: var(--mm-navy) !important;
    text-decoration: none !important;
    box-shadow: none !important;
    outline: none;
}


/* Expanded — same look, caret stays flipped */
.sbu-mm-trigger[aria-expanded="true"] {
    background: transparent !important;
    color: var(--mm-navy) !important;
    text-decoration: none !important;
}

/* Focus-visible: clear outline for keyboard users (ADA) */
.sbu-mm-trigger:focus-visible {
    outline: 3px solid var(--mm-focus) !important;
    outline-offset: 3px;
    background: transparent !important;
    color: var(--mm-navy) !important;
    text-decoration: none !important;
}

.sbu-mm-caret {
    flex-shrink: 0;
    transition: transform var(--mm-transition);
    stroke: currentColor;
    width: 10px;
    height: 6px;
    margin-left: 6px;
}

.sbu-mm-trigger[aria-expanded="true"] .sbu-mm-caret {
    transform: rotate(180deg);
}

/* ================================================================
   MEGA PANELS (desktop)
   ================================================================ */
.sbu-mm-panel {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: var(--mm-z-panel);
    background: var(--mm-white);
    border-top: 3px solid var(--mm-red);
    box-shadow: var(--mm-shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity var(--mm-transition), visibility var(--mm-transition), transform var(--mm-transition);
    pointer-events: none;
}

.sbu-mm-top-item.is-open > .sbu-mm-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.sbu-mm-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0;
    max-width: var(--mm-max-width);
    margin: 0 auto;
    padding: 20px 32px 24px;
}

/* ================================================================
   COLUMN HEADINGS
   ================================================================ */
.sbu-mm-col {
    padding: 0 24px;
}

.sbu-mm-col:first-child {
    padding-left: 0;
}

.sbu-mm-col:last-child {
    padding-right: 0;
}

.sbu-mm-col-heading {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--mm-red);
    padding-bottom: 8px;
    margin-bottom: 8px;
    border-bottom: none;
}

.sbu-mm-col-heading a {
    color: inherit;
    text-decoration: none;
}

.sbu-mm-col-heading a:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.sbu-mm-col-heading a:focus-visible {
    outline: 3px solid var(--mm-focus);
    outline-offset: 2px;
    border-radius: 2px;
}

/* ================================================================
   LINK LISTS — chevron arrow style
   ================================================================ */
.sbu-mm-links {
    padding: 0;
}

.sbu-mm-links li {
    margin: 0;
}

.sbu-mm-links a {
    display: flex;
    align-items: center;
    padding: 5px 4px;
    color: var(--mm-text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 400;
    transition: color 0.15s ease;
    line-height: 1.5;
    border-radius: 4px;
    min-height: 32px;
}

/* Chevron arrow before each link — SVG icon */
.sbu-mm-links a::before {
    content: "";
    display: inline-block;
    flex-shrink: 0;
    width: 6px;
    height: 9px;
    margin-right: 8px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 320 512'%3E%3Cpath fill='%23990000' d='M285.476 272.971L91.132 467.314c-9.373 9.373-24.569 9.373-33.941 0l-22.667-22.667c-9.357-9.357-9.375-24.522-.04-33.901L188.505 256 34.484 101.255c-9.335-9.379-9.317-24.544.04-33.901l22.667-22.667c9.373-9.373 24.569-9.373 33.941 0L285.475 239.03c9.373 9.372 9.373 24.568.001 33.941z'/%3E%3C/svg%3E") no-repeat center;
    background-size: contain;
    transition: transform 0.15s ease;
}

.sbu-mm-links a:hover {
    color: var(--mm-red);
}

.sbu-mm-links a:hover::before {
    transform: translateX(3px);
}

/* Focus: prominent outline for keyboard nav (ADA) */
.sbu-mm-links a:focus-visible {
    outline: 3px solid var(--mm-focus);
    outline-offset: 2px;
    color: var(--mm-text);
}

/* External link indicator */
.sbu-mm-links a[target="_blank"]::after {
    content: "";
    display: inline-block;
    width: 12px;
    height: 12px;
    margin-left: 6px;
    flex-shrink: 0;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M18 13v6a2 2 0 01-2 2H5a2 2 0 01-2-2V8a2 2 0 012-2h6'/%3E%3Cpolyline points='15 3 21 3 21 9'/%3E%3Cline x1='10' y1='14' x2='21' y2='3'/%3E%3C/svg%3E") no-repeat center;
}

/* Screen reader text for external links */
.sbu-mm-links a[target="_blank"] .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ================================================================
   HAMBURGER TOGGLE (mobile only — hidden on desktop)
   ================================================================ */
.sbu-mm-toggle {
    display: none !important;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--mm-navy);
    color: var(--mm-white);
    border: none;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    width: auto;
    margin-left: auto;
    border-radius: 4px;
    min-height: 36px;
}

.sbu-mm-toggle:focus-visible {
    outline: 3px solid var(--mm-white);
    outline-offset: -3px;
}

.sbu-mm-toggle svg { width: 18px; height: 18px; }
.sbu-mm-close-icon { display: none; }
.sbu-mm.is-drawer-open .sbu-mm-hamburger { display: none; }
.sbu-mm.is-drawer-open .sbu-mm-close-icon { display: block; }

/* ================================================================
   OVERLAY (mobile)
   ================================================================ */
.sbu-mm-overlay {
    position: fixed;
    inset: 0;
    z-index: var(--mm-z-overlay);
    background: rgba(11, 32, 65, 0.4);
    backdrop-filter: blur(2px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.sbu-mm-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ================================================================
   MOBILE DRAWER
   ================================================================ */
/* Drawer header & quick links — hidden on desktop */
.sbu-mm-drawer-header {
    display: none;
}

.sbu-mm-quick-links {
    display: none;
}

@media (max-width: 1023px) {
    .sbu-mm-toggle {
        display: flex !important;
    }

    .sbu-mm-drawer-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 14px 20px;
        border-bottom: 2px solid var(--mm-red);
        background: var(--mm-white);
        position: sticky;
        top: 0;
        z-index: 1;
    }

    .sbu-mm-drawer-title {
        font-size: 18px;
        font-weight: 700;
        color: var(--mm-navy);
    }

    .sbu-mm-drawer-close {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: #990000;
        border: none;
        color: var(--mm-white);
        cursor: pointer;
        border-radius: 4px;
        padding: 0;
    }

    .sbu-mm-drawer-close:hover {
        background: #6b0000;
        color: var(--mm-white);
    }

    .sbu-mm-drawer-close:focus-visible {
        outline: 3px solid var(--mm-focus);
        outline-offset: 2px;
    }

    .sbu-mm-bar {
        position: fixed !important;
        top: 45px !important;
        right: 0 !important;
        bottom: 0 !important;
        width: 360px;
        max-width: 90vw;
        z-index: var(--mm-z-drawer);
        background: var(--mm-white);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        transform: translateX(100%);
        transition: transform var(--mm-transition);
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
        border: none;
        display: flex;
        flex-direction: column;
    }

    .sbu-mm.is-drawer-open .sbu-mm-bar {
        transform: translateX(0);
    }

    .sbu-mm-list {
        flex-direction: column;
        padding: 12px 0;
        justify-content: flex-start;
        width: 100%;
    }

    /* ── Top-level accordion triggers ── */
    .sbu-mm-top-item {
        border-bottom: 1px solid var(--mm-border);
    }

    .sbu-mm-trigger {
        display: flex !important;
        width: 100% !important;
        justify-content: space-between;
        padding: 14px 20px;
        color: var(--mm-navy) !important;
        font-size: 16px !important;
        text-transform: none;
        letter-spacing: 0;
        border-radius: 0;
        min-height: 48px;
    }

    .sbu-mm-trigger:hover {
        background: var(--mm-gray);
        text-decoration: none;
    }

    .sbu-mm-trigger:focus-visible {
        outline: 3px solid var(--mm-focus);
        outline-offset: -3px;
        background: transparent;
        text-decoration: none;
    }

    .sbu-mm-trigger[aria-expanded="true"] {
        color: var(--mm-red);
        background: var(--mm-gray);
        text-decoration: none;
    }

    /* ── Panels as accordion content ── */
    .sbu-mm-panel {
        position: static;
        box-shadow: none;
        border-radius: 0;
        border-top: none;
        background: var(--mm-gray);
        max-height: 0;
        overflow: hidden;
        opacity: 1;
        visibility: visible;
        transform: none;
        transition: max-height 0.35s ease;
        pointer-events: auto;
    }

    .sbu-mm-top-item.is-open > .sbu-mm-panel {
        max-height: 2000px;
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .sbu-mm-columns {
        display: block;
        padding: 0 0 8px;
    }

    .sbu-mm-col {
        padding: 8px 20px;
        border-bottom: 1px solid var(--mm-border);
    }

    .sbu-mm-col:first-child {
        padding-left: 20px;
    }

    .sbu-mm-col:last-child {
        border-bottom: none;
        padding-right: 20px;
    }

    .sbu-mm-col-heading {
        font-size: 14px;
        padding-bottom: 8px;
        margin-bottom: 6px;
    }

    .sbu-mm-links a {
        padding: 2px 4px;
        font-size: 15px;
        min-height: 40px;
    }

    /* ── Quick links at bottom of drawer ── */
    .sbu-mm-quick-links {
        display: flex;
        flex-direction: column;
        gap: 0;
        margin-top: auto;
        border-top: 2px solid var(--mm-red);
        padding: 8px 0;
    }

    .sbu-mm-quick-links a {
        display: flex;
        align-items: center;
        padding: 14px 20px;
        color: var(--mm-navy);
        font-size: 16px;
        font-weight: 600;
        text-decoration: none;
        min-height: 48px;
        border-bottom: 1px solid var(--mm-border);
    }

    .sbu-mm-quick-links a:last-child {
        border-bottom: none;
    }

    .sbu-mm-quick-links a:hover {
        background: var(--mm-gray);
        color: var(--mm-red);
    }

    .sbu-mm-quick-links a:focus-visible {
        outline: 3px solid var(--mm-focus);
        outline-offset: -3px;
    }
}

/* ================================================================
   DESKTOP ADJUSTMENTS (min-width: 1024px)
   ================================================================ */
@media (min-width: 1024px) {
    .sbu-mm {
        position: relative;
    }

    .sbu-mm-bar {
        position: relative;
    }

    /* Panel full-width: fixed positioning, edge to edge */
    .sbu-mm-panel {
        position: fixed;
        left: 0;
        right: 0;
        width: auto;
        transform: translateY(-4px);
    }

    .sbu-mm-top-item.is-open > .sbu-mm-panel {
        transform: translateY(0);
    }
}

/* ================================================================
   ACCESSIBILITY — WCAG 2.1 AA
   ================================================================ */

/* Skip link support (works with global .skip-link) */
.sbu-mm a.skip-link:focus {
    position: static;
    width: auto;
    height: auto;
    clip: auto;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .sbu-mm-panel,
    .sbu-mm-bar,
    .sbu-mm-overlay,
    .sbu-mm-caret,
    .sbu-mm-links a,
    .sbu-mm-links a::before,
    .sbu-mm-trigger {
        transition: none !important;
    }
}

/* High contrast / forced colors */
@media (forced-colors: active) {
    .sbu-mm-trigger {
        border: 1px solid ButtonText;
    }

    .sbu-mm-trigger:focus-visible {
        outline: 3px solid Highlight;
    }

    .sbu-mm-panel {
        border: 2px solid CanvasText;
    }

    .sbu-mm-col-heading {
        forced-color-adjust: none;
    }

    .sbu-mm-links a:focus-visible {
        outline: 3px solid Highlight;
    }
}

/* ================================================================
   PRINT
   ================================================================ */
@media print {
    .sbu-mm { display: none !important; }
}