.is-directory-page .article-cover {
    min-height: clamp(300px, 32vw, 430px);
}

.ist-directory,
.ist-ambassador-wrap {
    --dir-primary: #1b3f97;
    --dir-accent: #7437d8;
    --dir-text: #17243a;
    --dir-muted: #63708a;
    --dir-border: #dfe7f5;
    margin: 0 auto;
    padding: clamp(18px, 3vw, 32px);
    border: 1px solid var(--dir-border);
    border-radius: 20px;
    background: linear-gradient(180deg, #fff 0%, #f7f9fe 100%);
}

.ist-directory-head h2,
.ist-ambassador-head h2 {
    margin: 0 0 5px;
    color: var(--dir-text, #17243a);
    font-size: clamp(1.65rem, 3vw, 2.15rem);
    font-weight: 650;
}

.ist-directory-head p,
.ist-ambassador-head p,
.ist-directory-status,
.ist-ambassador-status {
    color: var(--dir-muted, #63708a);
}

.ist-directory-head p,
.ist-ambassador-head p { margin: 0; }

.ist-directory-toolbar,
.ist-ambassador-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0 8px;
}

.ist-directory-filters,
.ist-ambassador-filters {
    display: flex;
    flex: 1 1 auto;
    flex-wrap: wrap;
    gap: 8px;
    min-width: 0;
}

.ist-directory-filters:empty { display: none; }

.ist-directory-filter,
.ist-ambassador-filter,
.ist-directory-page-btn,
.ist-directory-search-clear,
.ist-directory-reset {
    min-width: 44px;
    min-height: 44px;
}

.ist-directory-filter,
.ist-ambassador-filter {
    padding: 9px 16px;
    border: 1px solid #cad6ee;
    border-radius: 999px;
    background: #fff;
    color: #263b68;
    font: inherit;
    font-size: .88rem;
    font-weight: 550;
    line-height: 1.25;
    white-space: nowrap;
}

.ist-directory-filter:hover,
.ist-ambassador-filter:hover { border-color: #8ea6da; }

.ist-directory-filter[aria-pressed="true"],
.ist-ambassador-filter[aria-pressed="true"] {
    border-color: transparent;
    background: linear-gradient(135deg, var(--dir-primary, #1b3f97), var(--dir-accent, #7437d8));
    color: #fff;
}

.ist-directory-search,
.ist-ambassador-search {
    position: relative;
    flex: 0 1 300px;
    min-width: 220px;
}

.ist-directory-search > i,
.ist-ambassador-search > i {
    position: absolute;
    top: 50%;
    left: 15px;
    z-index: 1;
    color: #78859d;
    transform: translateY(-50%);
    pointer-events: none;
}

#ist-directory-search-input,
#ist-ambassador-search-input {
    width: 100%;
    min-height: 44px;
    padding: 9px 48px 9px 42px;
    border: 1px solid #cad6ee;
    border-radius: 999px;
    background: #fff;
    color: var(--dir-text, #17243a);
    font: inherit;
    font-size: .92rem;
}

.ist-directory-search-clear {
    position: absolute;
    top: 0;
    right: 0;
    display: inline-grid;
    place-items: center;
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: #63708a;
}

.ist-directory-status,
.ist-ambassador-status {
    min-height: 24px;
    margin: 0 0 14px;
    font-size: .9rem;
}

.ist-directory-grid,
.ist-star-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.ist-directory-card,
.ist-star-card {
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
    height: 100%;
    border: 1px solid var(--dir-border, #dfe7f5);
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 4px 16px rgba(23, 36, 58, .04);
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.ist-directory-card:hover,
.ist-star-card:hover {
    border-color: #c5d3ef;
    box-shadow: 0 14px 30px rgba(23, 36, 58, .1);
    transform: translateY(-3px);
}

.ist-directory-card-link,
button.ist-directory-card {
    display: flex;
    width: 100%;
    height: 100%;
    flex-direction: column;
    padding: 0;
    border: 0;
    background: #fff;
    color: inherit;
    text-align: left;
    text-decoration: none;
}

.ist-directory-media,
.ist-star-photo {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: linear-gradient(140deg, #e9edf5, #d7deea);
}

.directory-pride .ist-directory-media,
.directory-alumni .ist-directory-media,
.ist-star-photo { aspect-ratio: 4 / 5; }

.ist-directory-media img,
.ist-star-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .35s ease;
}

.directory-partners .ist-directory-media {
    aspect-ratio: 16 / 8;
    padding: 22px;
    background: #fff;
}

.directory-partners .ist-directory-media img { object-fit: contain; }
.ist-directory-card:hover img,
.ist-star-card:hover img { transform: scale(1.025); }

.ist-directory-badge,
.ist-star-badge {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    min-height: 28px;
    padding: 4px 9px;
    border-radius: 999px;
    background: #edf2ff;
    color: #274b9f;
    font-size: .76rem;
    font-weight: 650;
}

.ist-directory-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    box-shadow: 0 5px 12px rgba(23, 36, 58, .12);
}

.ist-directory-badge.status-upcoming { background: #e8f8f0; color: #13724a; }
.ist-directory-badge.status-ongoing { background: #fff4d8; color: #8a5c00; }
.ist-directory-badge.status-past { background: #edf1f7; color: #5f6b7d; }

.ist-directory-card-body,
.ist-star-meta {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 15px 16px 18px;
}

.ist-directory-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 7px 12px;
    margin-bottom: 8px;
    color: var(--dir-muted, #63708a);
    font-size: .82rem;
}

.ist-directory-title,
.ist-star-name {
    display: -webkit-box;
    overflow: hidden;
    margin: 0 0 8px;
    color: var(--dir-text, #17243a);
    font-size: 1.08rem;
    font-weight: 650;
    line-height: 1.42;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.ist-directory-summary {
    display: -webkit-box;
    overflow: hidden;
    margin: 0;
    color: #52617a;
    font-size: .92rem;
    line-height: 1.58;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.ist-directory-cta { margin-top: auto; padding-top: 14px; color: #244ca3; font-weight: 650; }
.ist-year-block { margin-top: 26px; }
.ist-year-title { margin: 0 0 12px; color: #263b68; font-size: 1.2rem; }

.ist-directory-pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.ist-directory-page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 0 14px;
    border: 1px solid #cad6ee;
    border-radius: 999px;
    background: #fff;
    color: #27407a;
    font: inherit;
    line-height: 1;
    white-space: nowrap;
}

.ist-directory-page-btn[aria-current="page"] { border-color: transparent; background: #1b3f97; color: #fff; }
.ist-directory-page-btn:disabled { opacity: .48; }
.ist-directory-ellipsis { color: #78859d; }

.ist-directory-empty {
    padding: 38px 20px;
    border: 1px dashed #c5d3ed;
    border-radius: 14px;
    background: #fbfcff;
    text-align: center;
}
.ist-directory-empty h3 { margin: 0 0 6px; color: #17243a; font-size: 1.2rem; }
.ist-directory-empty p { margin: 0 0 16px; color: #63708a; }
.ist-directory-reset { padding: 8px 18px; border: 0; border-radius: 999px; background: #1b3f97; color: #fff; font: inherit; }

.ist-directory-skeleton { min-height: 360px; border-radius: 16px; background: linear-gradient(100deg, #eef2f8 20%, #f8faff 40%, #eef2f8 60%); background-size: 220% 100%; animation: directory-shimmer 1.25s infinite linear; }

.ist-directory-filter:focus-visible,
.ist-ambassador-filter:focus-visible,
#ist-directory-search-input:focus-visible,
#ist-ambassador-search-input:focus-visible,
.ist-directory-search-clear:focus-visible,
.ist-directory-card-link:focus-visible,
button.ist-directory-card:focus-visible,
.ist-star-card:focus-visible,
.ist-directory-page-btn:focus-visible,
.ist-directory-reset:focus-visible { outline: 3px solid #f2b84b; outline-offset: 3px; }

.ist-lightbox {
    position: fixed;
    inset: 0;
    z-index: 1080;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(4, 10, 25, .88);
}
.ist-lightbox.is-open { display: flex; }
.ist-lightbox img { max-width: min(900px, 92vw); max-height: 88vh; border-radius: 14px; object-fit: contain; }
.ist-lightbox-close { position: absolute; top: 18px; right: 18px; width: 48px; height: 48px; border: 1px solid rgba(255,255,255,.45); border-radius: 50%; background: rgba(0,0,0,.35); color: #fff; font-size: 1.7rem; }

@keyframes directory-shimmer { to { background-position-x: -220%; } }

@media (max-width: 991.98px) {
    .ist-directory-grid,
    .ist-star-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .ist-directory-toolbar,
    .ist-ambassador-toolbar { align-items: stretch; flex-direction: column-reverse; }
    .ist-directory-search,
    .ist-ambassador-search { flex-basis: auto; width: 100%; min-width: 0; }
}

@media (max-width: 640px) {
    .is-directory-page .article-cover { min-height: 240px; padding-block: 42px; }
    .is-directory-page .article-cover h1 { font-size: clamp(2rem, 10vw, 2.65rem); }
    .is-directory-page .article-content-section { padding-top: 24px; }
    .ist-directory,
    .ist-ambassador-wrap { padding: 16px; border-radius: 16px; }
    .ist-directory-filters,
    .ist-ambassador-filters { flex-wrap: nowrap; overflow-x: auto; margin-inline: -16px; padding: 2px 16px 8px; scroll-snap-type: x proximity; scrollbar-width: thin; }
    .ist-directory-filter,
    .ist-ambassador-filter { flex: 0 0 auto; scroll-snap-align: start; }
    .ist-directory-grid,
    .ist-star-grid { grid-template-columns: 1fr; gap: 14px; }
    .ist-directory-summary { -webkit-line-clamp: 2; }
    .ist-directory-page-btn.is-edge span { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    .ist-directory-card,
    .ist-star-card,
    .ist-directory-media img,
    .ist-star-photo img { transition: none; }
    .ist-directory-skeleton { animation: none; }
}