/* ================= SDS tabs (toggle) ================= */
.sds-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom:40px;
}

.sds-tabs__link {
    width: 250px;
    padding: 17px 22px !important;
    background-color: var(--white) !important;
    outline-color: var(--border-color) !important;
    color: var(--text-color) !important;
}

.sds-tabs__link.active {
    outline-color: var(--theme) !important;
    color: var(--theme) !important;
}

/* ================= alphabet quick nav ================= */
.alphabet-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 60px;
    row-gap:15px;
}

/* stays reachable while scrolling a long list, same behaviour as the reference site */
/* `top` is set inline by sds.js to match the live height of the fixed header */
body.fixed-alphabets .alphabet-nav {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    width: 100%;
    justify-content: center;
    background: var(--white);
    box-shadow: 0 0 5px rgba(0, 0, 0, .3);
    padding: 16px 120px;
}

.alphabet-nav a {
    position: relative;
    font-size: 24px;
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    color: var(--text-color);
    padding: 10px 22px 11px;
    border-right: 1px solid var(--border-light);
}

.alphabet-nav a:first-child {
    border-left: 1px solid var(--border-light);
}

.alphabet-nav a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -7px;
    width: 46px;
    max-width: 80%;
    height: 1px;
    background: var(--theme);
    transform: translateX(-50%);
    opacity: 0;
}

.alphabet-nav a.active,
.alphabet-nav a:hover {
    color: var(--theme);
}

.alphabet-nav a.active::after,
.alphabet-nav a:hover::after {
    opacity: 1;
}

/* ================= letter sections ================= */
.sds-download-rows {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.sds-download-row {
    display: flex;
    align-items: flex-start;
    gap: 40px;
    scroll-margin-top: 160px;
}

.sds-badge {
    display: flex;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 90px;
    border-radius: 10px;
    background: var(--cream);
}

.sds-badge__letter {
    font-size: 40px;
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.8px;
    color: var(--text-color);
    transition: color .2s ease;
}

.sds-badge.is-current {
    background: var(--theme);
}

.sds-badge.is-current .sds-badge__letter {
    color: var(--white);
}

.sds-download-grid {
    display: grid;
    flex: 1;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    width:100%;
}

.pdfbx {
       display: flex;
       flex-wrap:wrap;
    align-items: center;
    gap: 14px;
    min-height: 90px;
    height: 100%;
    padding: 6px 24px 6px 64px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--white);
    font-size: 18px;
    line-height: 1.20;
    font-weight: var(--font-body-weight);
    flex-wrap: wrap;
    color: var(--text-color);
    position: relative;
}

.pdfbx img {
     flex-shrink: 0;
    position: absolute;
    left: 0;
    margin-left: 24px;
}

.pdfbx:hover {
    border-color: var(--theme);
    color: var(--theme);
}

.sds-loadmore {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-top: 40px;
}

.sds-loadmore__line {
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.sds-tab-panel {
    display: none;
}

.sds-tab-panel.active {
    display: block;
}

/* ================= responsive ================= */

@media(max-width:1599.98px){
    .alphabet-nav{
        margin-bottom:40px;
    }
    .sds-download-row{
        gap:25px;
    }
    .sds-badge{
        width:90px;
        height:80px;
    }
    .sds-download-grid{
        gap:12px;
    }
    .sds-download-rows{
        gap:25px;
    }
    .pdfbx{
        min-height:76px;
        padding:6px 20px 6px 60px;
        font-size:16px;
        gap:10px;
    }
    .pdfbx img{
          margin-left: 20px;  
    }
}

@media (max-width: 1439.98px) {
    .alphabet-nav a {
        font-size: 20px;
        padding: 8px 16px 10px;
    }

    .alphabet-nav a::after {
        width: 36px;
    }

    .sds-download-grid {
        gap: 10px;
    }

    body.fixed-alphabets .alphabet-nav {
        padding: 14px 60px;
    }
    .sds-tabs{
        gap:14px;
    }
        .sds-badge {
        width: 80px;
        height: 70px;
    }
    .pdfbx{
        min-height:70px;
    }
}

@media (max-width: 1199.98px) {
    .sds-download-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    body.fixed-alphabets .alphabet-nav {
        padding: 12px 20px;
    }
}

@media (max-width: 991.98px) {
    .sds-tabs {
        margin-bottom: 40px;
    }

    .alphabet-nav {
        margin-bottom: 40px;
    }

    .sds-download-row {
        gap: 24px;
    }

    .sds-download-rows {
        gap: 24px;
    }
        .alphabet-nav a {
        font-size: 18px;
        padding: 8px 16px 10px;
    }
        .sds-badge {
        width: 70px;
        height: 60px;
    }
    .sds-badge__letter{
        font-size:34px;
    }
    .pdfbx{
        font-size:16px;
        padding:6px 12px 6px 44px;
        line-height:1.14;
        gap:8px;
    }
    .pdfbx>img{width:22px;margin-left:12px;}
    
}

@media (max-width: 767.98px) {
    .sds-tabs {
        flex-wrap: wrap;
    }

    .sds-tabs__link {
        width: auto
    }

    .alphabet-nav a {
        font-size: 16px;
        padding: 6px 14px;
    }

    .alphabet-nav a::after {
        width: 24px;
        bottom: -6px;
    }

    body.fixed-alphabets .alphabet-nav {
        padding: 10px;
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
    }

    .sds-download-row {
        flex-direction: column;
        gap: 14px;
    }

    .sds-badge {
        width: 70px;
        height: 70px;
    }

    .sds-badge__letter {
        font-size: 30px;
    }
    .sds-tabs__link{
       padding:14px 20px !important; 
    }
    .sds-tabs {
        gap:8px;
        margin-bottom:30px;
    }
    .alphabet-nav {
        margin-bottom:30px;
    }
        .sds-badge {
        width: 60px;
        height: 60px;
    }
}

@media (max-width: 575.98px) {
    .sds-download-grid {
        grid-template-columns:repeat(2, 1fr);
        gap: 10px;
    }

    .pdfbx {
        font-size: 16px;
    }

}