/* =========================================
   SHAREPOINT FOLDER HUB
   ========================================= */

.sp-folder-hub,
.sp-folder-hub * {
    box-sizing: border-box;
}

.sp-folder-hub {
    --sp-blue: #003577;
    --sp-light-blue: #62B2CF;
    --sp-pale-blue: #b8d7ff;
    --sp-overlay: rgba(0, 53, 119, 0.58);
    --sp-transition: 0.25s ease;
}

/* =========================================
   CARD GRID
   Desktop: 3 columns
   Tablet: 2 columns
   Mobile: 1 column
   ========================================= */

.sp-folder-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    align-items: start;
}

.sp-folder-item {
    min-width: 0;
}

/* =========================================
   SUBJECT CARD
   ========================================= */

.sp-folder-card {
    position: relative;
    display: block;
    width: 100%;
    aspect-ratio: 1 / 1;
    min-height: 0;
    padding: 0;
    border: 3px solid var(--sp-blue);
    border-radius: 26px;
    background-color: var(--sp-blue);
    color: #ffffff;
    overflow: hidden;
    cursor: pointer;
    font: inherit;
    text-align: center;
}

/* Force the image to fully fill the square card */
.sp-folder-card img {
    position: absolute;
    inset: 0;
    width: 100% !important;
    height: 100% !important;
    max-width: none;
    object-fit: cover;
    display: block;
    transition: transform var(--sp-transition);
}

.sp-folder-card-overlay {
    position: absolute;
    inset: 0;
    background: var(--sp-overlay);
    z-index: 1;
    transition: background var(--sp-transition);
}

.sp-folder-card-title {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    padding: 0.65rem 1rem;
    background: rgba(0, 53, 119, 0.92);
    color: #ffffff;
    font-size: clamp(1.1rem, 1.35vw, 1.55rem);
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

.sp-folder-card:hover img,
.sp-folder-card.is-active img {
    transform: scale(1.05);
}

.sp-folder-card:hover .sp-folder-card-overlay {
    background: rgba(0, 53, 119, 0.45);
}

.sp-folder-card.is-active {
    box-shadow: inset 0 -9px 0 var(--sp-light-blue);
}

.sp-folder-card:focus-visible {
    outline: 4px solid var(--sp-light-blue);
    outline-offset: -8px;
}

/* =========================================
   YEAR LINK PANEL
   This now sits only under its own subject card
   ========================================= */

.sp-folder-panel[hidden] {
    display: none;
}

.sp-folder-panel {
    width: 100%;
    margin-top: 8px;
    background: var(--sp-blue);
    border: 3px solid var(--sp-blue);
    border-radius: 0 0 18px 18px;
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transform: translateY(-6px);
    transition:
        max-height var(--sp-transition),
        opacity var(--sp-transition),
        transform var(--sp-transition);
}

.sp-folder-panel.is-open {
    opacity: 1;
    transform: translateY(0);
}

.sp-folder-panel-inner {
    border-top: 4px solid var(--sp-light-blue);
    padding: 1rem;
}

.sp-folder-panel-title {
    color: #ffffff;
    font-size: 1.2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.85rem;
}

.sp-year-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.sp-year-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 105px;
    padding: 0.6rem 1rem;
    border: 2px solid var(--sp-light-blue);
    border-radius: 999px;
    background: #ffffff;
    color: var(--sp-blue);
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    transition:
        background var(--sp-transition),
        transform var(--sp-transition),
        box-shadow var(--sp-transition);
}

.sp-year-links a:hover {
    background: var(--sp-pale-blue);
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(0, 53, 119, 0.2);
}

.sp-no-links {
    color: #ffffff;
    font-weight: 600;
}

/* =========================================
   RESPONSIVE
   Matches your existing rough pattern:
   3 desktop, 2 tablet, 1 mobile
   ========================================= */

@media (max-width: 1200px) {
    .sp-folder-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .sp-folder-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .sp-folder-card {
        border-radius: 22px;
    }

    .sp-folder-card-title {
        font-size: 1.35rem;
    }

    .sp-year-links a {
        flex: 1 1 100%;
        width: 100%;
    }
}