/* ==========================================================
           THREE-COLUMN LAYOUT — BOOTSTRAPLESS
           ========================================================== */
        
        .blinn-three-column-layout {
            display: grid;
            grid-template-columns:
                minmax(0, 1fr)
                minmax(0, 2fr)
                minmax(0, 1fr);
            gap: 24px;
        
            width: 100%;
            max-width: 1320px;
            margin-inline: auto;
            padding-inline: 20px;
            box-sizing: border-box;
        }
        
        .blinn-three-column-layout > * {
            min-width: 0;
        }
        
        /* ==========================================================
           RESPONSIVE LAYOUT
           ========================================================== */
        
        @media (max-width: 1199px) {
            .blinn-three-column-layout {
                grid-template-columns: minmax(0, 1fr);
            }
        }






/* ==========================================================
   BLINN SECTION NAVIGATION
   Desktop sidebar + mobile overlay
   ========================================================== */

.blinn-section-navigation {
    --nav-bg: #0a2140;
    --nav-hover: #193b60;
    --nav-active: #24476c;
    --nav-text: #ffffff;
    --nav-accent: #fdb813;

    width: 100%;
}

/* Desktop sidebar */

.blinn-side-nav {
    width: 100%;
    max-width: 320px;
    background: var(--nav-bg);
    border-radius: 4px;
    overflow: hidden;
}

.blinn-side-nav ul {
    list-style: none;
    margin: 0;
    padding: 8px;
}

.blinn-side-nav li {
    margin: 0;
    padding: 0;
}

.blinn-side-nav a {
    display: block;
    padding: 12px 14px;
    color: var(--nav-text);
   /* font-family: Arial, sans-serif; */
    font-size: 0.95rem;
    font-weight: 400;
    line-height: 1.5;
    text-decoration: none;
    border-radius: 3px;
    border-left: 3px solid transparent;
}

.blinn-side-nav a:hover {
    background: var(--nav-hover);
    color: #ffffff;
    text-decoration: underline;
}

.blinn-side-nav a:focus-visible {
    outline: 3px solid var(--nav-accent);
    outline-offset: -3px;
}

.blinn-side-nav a[aria-current="page"] {
    background: var(--nav-active);
    border-left-color: var(--nav-accent);
    font-weight: 700;
}

/* Nested navigation */

.blinn-side-nav ul ul {
    margin: 4px 0 8px 12px;
    padding-left: 10px;
    border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.blinn-side-nav ul ul a {
    font-size: 0.9rem;
    padding: 9px 12px;
}

/* ==========================================================
   SECTION NAVIGATION — RESPONSIVE CONTROLS
   ========================================================== */

/* Hide the temporary mobile trigger on desktop */
.blinn-nav-toggle {
    display: none;
}

/* ==========================================================
   MOBILE SECTION NAVIGATION
   ========================================================== */

@media (max-width: 1199px) {

    /* Hide desktop sidebar */
    .blinn-section-navigation > .blinn-side-nav {
        display: none;
    }

    /* Temporary trigger until integrated with mobile header */
    .blinn-nav-toggle {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 14px;
        background: #0033a0;
        color: #ffffff;
        border: 0;
        border-radius: 4px;
        font: inherit;
        cursor: pointer;
    }
}

/* ==========================================================
   MOBILE SECTION NAVIGATION — DIALOG
   ========================================================== */

dialog#blinn-mobile-dialog {
    position: fixed;
    inset: 0;

    width: 100%;
    max-width: none;
    height: 100vh;
    height: 100dvh;
    max-height: none;

    margin: 0;
    padding: 0;
    box-sizing: border-box;

    border: none;
    border-radius: 0;

    background: #0b2342;
    color: #ffffff;

    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
}

dialog#blinn-mobile-dialog:not([open]) {
    display: none;
}

dialog#blinn-mobile-dialog::backdrop {
    background: rgba(0, 0, 0, 0.6);
}

/* ==========================================================
   CLOSE BUTTON
   ========================================================== */

dialog#blinn-mobile-dialog .blinn-nav-close {
    display: flex;
    align-items: center;
    justify-content: center;

    position: sticky;
    top: 12px;
    margin: 12px 16px 20px auto;

    width: 44px;
    height: 44px;

    border: none;
    border-radius: 50%;

    background: #ffffff;
    color: #0033a0;

    cursor: pointer;
    z-index: 1;
}

/* ==========================================================
   NAVIGATION LIST
   ========================================================== */

dialog#blinn-mobile-dialog .blinn-side-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

dialog#blinn-mobile-dialog .blinn-side-nav-list li {
    margin: 0;
    padding: 0;
    list-style: none;
}

dialog#blinn-mobile-dialog .blinn-side-nav-list a {
    display: block;
    padding: 17px 20px;

    color: #ffffff;
    text-decoration: none;
    font-size: 1rem;
    line-height: 1.4;

    border-top: 1px solid rgba(255, 255, 255, 0.16);
    transition: background-color 0.15s ease;
}

dialog#blinn-mobile-dialog .blinn-side-nav-list a:hover {
    background: rgba(255, 255, 255, 0.10);
}

/* ==========================================================
   CURRENT PAGE
   ========================================================== */

dialog#blinn-mobile-dialog .blinn-side-nav-list a[aria-current="page"] {
    background: rgba(255, 255, 255, 0.10);
    color: #ffffff;

    border-left: 4px solid #fdb813;
    padding-left: 16px;

    font-weight: 600;
}

/* ==========================================================
   KEYBOARD ACCESSIBILITY
   ========================================================== */

dialog#blinn-mobile-dialog a:focus-visible,
dialog#blinn-mobile-dialog .blinn-nav-close:focus-visible,
.blinn-nav-toggle:focus-visible {
    outline: 3px solid #fdb813;
    outline-offset: -3px;
}

/* Respect reduced-motion preferences */
@media (prefers-reduced-motion: reduce) {
    dialog#blinn-mobile-dialog a {
        transition: none;
    }
}