/**
 * SAAIR brand — official logo colours
 * "sa" → purple (navigation) | "air" → teal (footer)
 */
:root {
    --saair-purple: #6b2d6e;
    --saair-purple-dk: #552458;
    --saair-purple-lt: #834488;
    --saair-purple-pale: #f3eaf3;
    --saair-teal: #6db5b2;
    --saair-teal-dk: #4f9693;
    --saair-teal-lt: #8ec9c6;
    --saair-teal-pale: #e8f4f3;
    /* Map legacy HEQAF tokens used across landing.css */
    --maroon: var(--saair-purple);
    --maroon-dk: var(--saair-purple-dk);
    --maroon-lt: var(--saair-purple-lt);
    --maroon-pale: var(--saair-purple-pale);
    --gold: var(--saair-teal);
    --gold-lt: var(--saair-teal-lt);
    --gold-dk: var(--saair-teal-dk);
    --gold-pale: var(--saair-teal-pale);
}

#pgbar {
    background: linear-gradient(90deg, var(--saair-purple), var(--saair-teal));
}

/* ── Navigation (purple — "sa") */
.topbar {
    background: var(--saair-purple);
    background: linear-gradient(90deg, var(--saair-purple-dk) 0%, var(--saair-purple) 100%);
}
.tb-links a:hover {
    color: var(--saair-teal-lt);
}

.main-nav {
    background: var(--white);
    border-bottom: 3px solid var(--saair-purple);
}
.nav-item > a {
    color: var(--saair-purple-dk);
}
.nav-item > a:hover,
.nav-item > a.active {
    color: var(--saair-purple);
    background: var(--saair-purple-pale);
}
.nav-item > a.active {
    box-shadow: inset 0 -3px 0 var(--saair-teal);
}
.nav-ham span {
    background: var(--saair-purple);
}
.nav-mob a {
    color: var(--saair-purple-dk);
}
.nav-mob a:hover {
    color: var(--saair-purple);
    background: var(--saair-purple-pale);
}

.hbtn-gold {
    background: var(--saair-teal);
}
.hbtn-gold:hover {
    background: var(--saair-teal-dk);
}
.hbtn-maroon {
    background: var(--saair-purple);
}
.hbtn-maroon:hover {
    background: var(--saair-purple-dk);
}

.hdr-search input:focus {
    border-color: var(--saair-purple);
}
.hdr-search button:hover {
    background: var(--saair-purple);
}

/* SAAIR wordmark tiles: sa = purple, air = teal */
.heqaf-tile--h,
.heqaf-tile--e {
    background: var(--saair-purple);
}
.heqaf-tile--q,
.heqaf-tile--a,
.heqaf-tile--f {
    background: var(--saair-teal);
}
.heqaf-mark__sub {
    color: var(--saair-purple);
}

/* ── Footer (teal — "air") */
.footer {
    background: var(--saair-teal);
    border-top: 4px solid var(--saair-teal-dk);
    color: #fff;
}
.footer-top {
    border-bottom-color: rgba(255, 255, 255, 0.22);
}
.fc-head {
    color: rgba(255, 255, 255, 0.92);
}
.fc-links a {
    color: rgba(255, 255, 255, 0.88);
}
.fc-links a:hover {
    color: #fff;
}
.footer-bot {
    background: var(--saair-teal-dk);
    border-top-color: rgba(255, 255, 255, 0.15);
}
.footer-copy {
    color: rgba(255, 255, 255, 0.82);
}
.f-back {
    border-color: rgba(255, 255, 255, 0.45);
    color: #fff;
}
.f-back:hover {
    border-color: #fff;
    color: #fff;
    background: rgba(255, 255, 255, 0.12);
}
.footer .footer-logo-link {
    display: inline-block;
    text-decoration: none;
    line-height: 0;
    margin-bottom: 0.5rem;
    border-radius: 8px;
    overflow: hidden;
}
.footer .footer-logo-link.footer-logo-link--saair {
    background: transparent;
    padding: 0;
}
.footer .footer-logo-img {
    width: auto;
    object-fit: contain;
    display: block;
}
.footer .footer-logo-saair {
    height: auto;
    max-height: 130px;
    max-width: 160px;
    width: auto;
}

/* ── Hero — flat bottom edge (no zig-zag clip-path / blue band) */
.hero.hero--concept-note {
    background: var(--saair-teal);
}
.hero.hero--concept-note.hero--home {
    background: transparent;
}
.hero.hero--concept-note.hero--home .hero-note-stage .hero-bg {
    background-color: #0a1628;
    background-image:
        linear-gradient(105deg, rgba(10, 22, 40, 0.55) 0%, rgba(85, 36, 88, 0.35) 40%, rgba(77, 150, 147, 0.22) 100%),
        url('../images/hero-bg-saair.png');
    background-position: center center;
    background-size: cover;
    clip-path: none;
    -webkit-clip-path: none;
}

/* Home hero — copy overlaid on banner image */
.hero.hero--home {
    min-height: 0;
    flex-direction: column;
    align-items: stretch;
    background: transparent;
}
.hero.hero--home .hero-note-stage--banner {
    min-height: min(78vh, 880px);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.hero.hero--home .hero-note-stage--banner .hero-in {
    position: relative;
    z-index: 4;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    min-height: min(78vh, 880px);
    padding: clamp(2.5rem, 6vh, 4rem) clamp(1.25rem, 5vw, 3.75rem) clamp(2rem, 5vh, 3rem);
}
.hero.hero--home .hero-in,
.hero.hero--home .hero-copy-panel {
    color: #fff;
}
.hero.hero--home .hero-copy-panel {
    width: 100%;
    max-width: min(60rem, 96vw);
    margin: 0 auto;
    padding: clamp(1.75rem, 4vw, 2.5rem) clamp(1.25rem, 4vw, 2rem);
    text-align: center;
    background: rgba(8, 16, 32, 0.42);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}
.hero.hero--home .hero-copy-panel p,
.hero.hero--home .hero-copy-panel h1,
.hero.hero--home .h-venue,
.hero.hero--home .h-title,
.hero.hero--home .h-theme,
.hero.hero--home .h-hosted,
.hero.hero--home .h-invite {
    color: #fff !important;
    text-shadow: none;
}
.hero.hero--home .h-venue {
    color: rgba(255, 255, 255, 0.92) !important;
    font-size: clamp(0.9rem, 2vw, 1.05rem);
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: none;
    margin: 0 0 1rem;
}
.hero.hero--home .h-title {
    color: #fff !important;
    font-size: clamp(1.65rem, 4.5vw, 2.35rem);
    margin-bottom: 1.25rem;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
}
.hero.hero--home .h-theme {
    color: #fff !important;
    font-family: 'Source Serif 4', 'Libre Baskerville', Georgia, serif;
    font-size: clamp(1.05rem, 2.4vw, 1.25rem);
    font-weight: 600;
    line-height: 1.55;
    margin: 0 auto 1rem;
    max-width: 60rem;
}
.hero.hero--home .h-hosted {
    color: rgba(255, 255, 255, 0.95) !important;
    font-size: clamp(0.78rem, 1.6vw, 0.92rem);
    font-weight: 700;
    letter-spacing: 0.12em;
    margin: 0 0 1.25rem;
}
.hero.hero--home .h-invite {
    color: rgba(255, 255, 255, 0.9) !important;
    font-size: clamp(0.88rem, 1.8vw, 1rem);
    line-height: 1.65;
    margin: 0 0 1.5rem;
    max-width: 44rem;
    margin-left: auto;
    margin-right: auto;
}
.hero.hero--home .h-invite a {
    color: var(--saair-teal-lt);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 0.15em;
}
.hero.hero--home .h-invite a:hover {
    color: #fff;
}
.hero.hero--home .btn-wht {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.45);
}
.hero.hero--home .btn-wht:hover {
    color: var(--saair-purple-dk);
    background: #fff;
    border-color: #fff;
}
.hero.hero--home .h-actions {
    justify-content: center;
}

/* Conference theme — sub-theme tile grid */
.landing-after-stats--flush-top {
    padding-top: 0;
}
.theme-tiles-section {
    padding: 0;
    margin: 0;
    overflow: visible;
    background: var(--cream, #f7f5f2);
}
.theme-tiles-panel {
    position: relative;
    isolation: isolate;
    color: #fff;
    padding: clamp(2rem, 5vw, 3rem) clamp(1.25rem, 4vw, 2.5rem) clamp(2.5rem, 6vw, 3.5rem);
    overflow: visible;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background-color: #1a1a1a;
    background-image:
        linear-gradient(180deg, rgba(20, 20, 24, 0.72) 0%, rgba(20, 20, 24, 0.58) 45%, rgba(20, 20, 24, 0.68) 100%),
        url('../images/theme-bg-slide3.png');
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
}
.theme-tiles-main {
    font-family: 'Source Serif 4', 'Libre Baskerville', Georgia, serif;
    font-size: clamp(1.05rem, 2.4vw, 1.35rem);
    font-weight: 700;
    line-height: 1.45;
    margin: 0 auto 1.5rem;
    max-width: 56rem;
    width: 100%;
    text-align: center;
}
.theme-tiles-label {
    font-weight: 700;
    margin: 0 0 1rem;
    font-size: 1rem;
    width: 100%;
    max-width: 920px;
    text-align: center;
}
.theme-tiles-grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 0.85rem;
    max-width: 920px;
    width: 100%;
    margin: 0 auto;
    overflow: visible;
}
.theme-tile {
    position: relative;
    grid-column: span 2;
    min-height: 7.5rem;
    background: #fff;
    border: 2px solid var(--maroon);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
    overflow: visible;
    z-index: 1;
}
.theme-tiles-grid > .theme-tile:nth-child(1) { grid-column: 1 / span 2; }
.theme-tiles-grid > .theme-tile:nth-child(2) { grid-column: 3 / span 2; }
.theme-tiles-grid > .theme-tile:nth-child(3) { grid-column: 5 / span 2; }
.theme-tiles-grid > .theme-tile:nth-child(4) { grid-column: 2 / span 2; }
.theme-tiles-grid > .theme-tile:nth-child(5) { grid-column: 4 / span 2; }
.theme-tile__detail-sources {
    display: none !important;
}
.theme-tile.is-hover,
.theme-tile.is-active,
.theme-tile:focus-visible {
    transform: translateY(-2px);
    border-color: var(--maroon-dk);
    box-shadow: 0 8px 24px rgba(85, 36, 88, 0.18);
    outline: none;
    z-index: 30;
    background: var(--maroon-pale);
}
.theme-tile.is-active {
    border-color: var(--maroon);
    box-shadow: 0 0 0 2px var(--maroon-lt), 0 12px 28px rgba(85, 36, 88, 0.22);
}
.theme-tile__title {
    color: var(--maroon-dk);
    font-size: clamp(0.78rem, 1.5vw, 0.92rem);
    font-weight: 600;
    line-height: 1.35;
}
.theme-tile__hint {
    color: rgba(85, 36, 88, 0.65);
    font-size: 0.68rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.theme-tile__popup {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    position: absolute;
    left: 50%;
    top: 100%;
    transform: translateX(-50%) translateY(-4px);
    width: min(24rem, 92vw);
    max-height: min(18rem, 50vh);
    overflow-y: auto;
    padding: 1rem 1.1rem 1.1rem;
    background: #fff;
    color: #1a1a1a;
    border-radius: 10px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
    text-align: left;
    font-size: 0.88rem;
    line-height: 1.55;
    z-index: 40;
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
}
.theme-tile__popup::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 100%;
    height: 12px;
}
.theme-tile__popup::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 100%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-bottom-color: #fff;
}
.theme-tile.is-hover .theme-tile__popup,
.theme-tile.is-active .theme-tile__popup {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}
.theme-tile__popup-label {
    margin: 0 0 0.5rem;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--saair-teal-dk);
}
.theme-tile__popup-q {
    margin: 0 0 0.65rem;
    color: var(--saair-purple);
}
.theme-tile__popup-cta {
    margin: 0.75rem 0 0;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--saair-purple);
}
.theme-tile-detail-panel {
    margin: 0;
    max-width: 920px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 clamp(1.25rem, 4vw, 2.5rem) clamp(2rem, 4vw, 2.5rem);
}
.theme-tile-detail-panel--white {
    background: #fff;
    border: 1px solid rgba(107, 45, 110, 0.12);
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
    overflow: hidden;
    max-width: calc(920px + 2 * clamp(1.25rem, 4vw, 2.5rem));
}
.theme-tile-detail-panel.is-visible {
    animation: themeDetailIn 0.25s ease;
}
@keyframes themeDetailIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.theme-tile-detail-panel__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 1.15rem;
    background: var(--saair-purple-pale);
    border-bottom: 1px solid rgba(107, 45, 110, 0.12);
}
.theme-tile-detail-panel__heading {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    color: var(--saair-purple);
}
.theme-tile-detail-panel__close {
    background: transparent;
    border: 1px solid rgba(107, 45, 110, 0.25);
    color: var(--saair-purple);
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
}
.theme-tile-detail-panel__close:hover {
    background: var(--saair-purple-pale);
}
.theme-tile-detail-panel__body {
    padding: 1.15rem 1.25rem 1.35rem;
    color: #1a1a1a;
    font-size: 0.92rem;
    line-height: 1.65;
}
.theme-tile-detail-panel__body p {
    margin: 0 0 0.85rem;
}
.theme-tile-detail-panel__body .theme-tile-detail__title {
    display: none;
}
.theme-tile-detail-panel__body .theme-tile-detail__q {
    color: var(--saair-purple);
}
.theme-tile-detail-panel__body .theme-tile-detail__topics-head {
    margin-top: 0.5rem;
    color: #1a1a1a;
}
.theme-tile-detail-panel__body .theme-tile-detail__topics {
    margin: 0.35rem 0 1rem 1.1rem;
    padding: 0;
    color: #334155;
}
.theme-tile-detail-panel__body .theme-tile-detail__topics li {
    margin-bottom: 0.35rem;
}
.theme-tile-detail-panel__body .theme-tile-detail__link {
    color: var(--saair-purple);
    font-weight: 600;
}
.theme-tile-detail-panel__body .theme-tile-detail__link:hover {
    color: var(--saair-teal-dk);
}
.theme-tiles-hint {
    margin: 1.25rem auto 0;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.65);
    text-align: center;
    max-width: 920px;
    width: 100%;
}
.theme-tiles-section .theme-tile-detail-panel {
    width: 100%;
}

@media (max-width: 768px) {
    .theme-tiles-grid {
        grid-template-columns: 1fr;
    }
    .theme-tiles-grid > .theme-tile:nth-child(n) {
        grid-column: 1;
        min-height: 5.5rem;
    }
    .theme-tile__popup {
        position: static;
        transform: none;
        width: 100%;
        max-height: none;
        margin-top: 0.75rem;
        visibility: hidden;
        opacity: 0;
        max-height: 0;
        padding: 0 1rem;
        overflow: hidden;
    }
    .theme-tile__popup::before,
    .theme-tile__popup::after {
        display: none;
    }
    .theme-tile.is-hover .theme-tile__popup,
    .theme-tile.is-active .theme-tile__popup {
        visibility: visible;
        opacity: 1;
        max-height: 40rem;
        padding: 1rem 1.1rem 1.1rem;
        margin-top: 0.75rem;
    }
    .theme-tile.is-active {
        align-items: stretch;
    }
}

.hero.hero--concept-note .h-badge {
    background: rgba(109, 181, 178, 0.2);
    border-color: rgba(142, 201, 198, 0.45);
    color: var(--saair-teal-lt);
}
.hero.hero--concept-note .h-badge::before {
    background: var(--saair-teal-lt);
}
.hero.hero--concept-note .h-eyebrow {
    color: var(--saair-teal-lt);
}
.hero.hero--concept-note .h-eyebrow:last-of-type {
    color: #d4eceb;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: none;
    font-size: clamp(0.85rem, 1.8vw, 1.05rem);
    max-width: 48rem;
}

.btn-gold {
    background: var(--saair-teal);
    box-shadow: 0 4px 16px rgba(77, 150, 147, 0.4);
}
.btn-gold:hover {
    background: var(--saair-teal-dk);
}
.btn-wht:hover {
    border-color: var(--saair-teal-lt);
    color: var(--saair-teal-lt);
}

/* Inner content pages */
.cn-doc-section__banner {
    background: linear-gradient(90deg, var(--saair-purple-dk), var(--saair-purple));
    border-bottom-color: rgba(255, 255, 255, 0.15);
}
.cn-doc-section__banner .cn-doc-section__heading {
    color: #fff;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}
.cn-doc-section__in a {
    color: var(--saair-purple);
}
.cn-doc-section__in a:hover {
    color: var(--saair-teal-dk);
}

/* Registration details page */
.cn-reg-page .cn-doc-section__banner {
    background: #fff;
    border-bottom: 1px solid var(--grey-lt);
}
.cn-reg-page .cn-doc-section__banner .cn-doc-section__heading {
    color: var(--charcoal);
    text-shadow: none;
}
.cn-reg-page .cn-doc-subsection {
    margin-top: 2.75rem;
}
.cn-reg-page .cn-doc-subsection:first-child {
    margin-top: 0;
}
.cn-reg-page .cn-doc-subsection + .cn-doc-subsection {
    padding-top: 2.75rem;
    border-top: 1px solid var(--grey-lt);
}
.cn-reg-page .cn-doc-subsection__title {
    margin: 0 0 1.5rem;
    font-family: var(--ff-sans);
    font-size: clamp(1.05rem, 2.2vw, 1.2rem);
    font-weight: 700;
    color: var(--saair-purple);
    letter-spacing: -0.01em;
}
.cn-reg-page .cn-reg-highlight {
    margin: 0 0 1.75rem;
    padding: 1.15rem 1.35rem;
    background: #fafafa;
    border: 1px solid var(--grey-lt);
    border-left: 4px solid var(--saair-teal);
    border-radius: 0 8px 8px 0;
}
.cn-reg-page .cn-reg-highlight__label {
    margin: 0 0 0.35rem;
    font-family: var(--ff-sans);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--charcoal);
}
.cn-reg-page .cn-reg-highlight__value {
    margin: 0;
    font-family: var(--ff-sans);
    font-size: clamp(1.05rem, 2vw, 1.2rem);
    font-weight: 600;
    color: var(--charcoal);
}
.cn-reg-page .cn-reg-highlight--notice .cn-reg-highlight__value {
    font-weight: 500;
    line-height: 1.55;
}
.cn-reg-page .cn-reg-group-label {
    margin: 0 0 1rem;
    font-family: var(--ff-sans);
    font-weight: 600;
    color: var(--charcoal);
}
.cn-reg-page .cn-reg-dates {
    margin: 0;
    max-width: 28rem;
}
.cn-reg-page .cn-reg-dates__row {
    display: grid;
    grid-template-columns: minmax(7.5rem, 9rem) 1fr;
    gap: 0.5rem 1.25rem;
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--grey-lt);
}
.cn-reg-page .cn-reg-dates__row:last-child {
    border-bottom: 0;
}
.cn-reg-page .cn-reg-dates__row dt {
    margin: 0;
    font-family: var(--ff-sans);
    font-weight: 600;
    color: var(--saair-purple-dk, var(--saair-purple));
}
.cn-reg-page .cn-reg-dates__row dd {
    margin: 0;
    font-family: var(--ff-sans);
    color: var(--charcoal);
}
.cn-reg-page .cn-reg-hotels {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.65rem;
    max-width: 32rem;
}
.cn-reg-page .cn-reg-hotels > li {
    margin: 0;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    position: relative;
    font-family: var(--ff-sans);
    background: #fafafa;
    border: 1px solid var(--grey-lt);
    border-radius: 6px;
}
.cn-reg-page .cn-reg-hotels > li::before {
    content: "";
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--saair-teal);
}

/* Home — optional conference activities */
.home-activities {
    background: var(--cream, #f7f5f2);
    border-top: 1px solid var(--grey-lt);
}
.home-activities__in {
    max-width: 920px;
    margin: 0 auto;
    padding: clamp(2.5rem, 5vw, 3.5rem) clamp(1.25rem, 4vw, 2.5rem);
}
.home-activities__title {
    margin: 0 0 1.25rem;
    font-family: var(--ff-sans);
    font-size: clamp(1.2rem, 2.6vw, 1.45rem);
    font-weight: 800;
    color: var(--maroon-dk);
    text-align: center;
}
.home-activities__intro {
    max-width: 42rem;
    margin: 0 auto 1rem;
    text-align: center;
    font-size: 1rem;
    line-height: 1.75;
    color: var(--charcoal);
}
.home-activities__intro p {
    margin: 0 0 1rem;
}
.home-activities__intro p:last-child {
    margin-bottom: 0;
}
.home-activities__cta {
    margin: 1.5rem auto 1.25rem;
    text-align: center;
    font-family: var(--ff-sans);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--maroon);
}
.home-activities__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin: 0 auto;
}
.activity-tile {
    min-height: 11rem;
    background: #fff;
    border: 2px solid var(--maroon);
    border-radius: 8px;
    overflow: hidden;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, transform 0.2s ease;
    text-decoration: none;
    color: inherit;
}
.activity-tile--link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.25rem 1rem;
    text-align: center;
}
.activity-tile--link:hover,
.activity-tile--link:focus-visible {
    transform: translateY(-2px);
    border-color: var(--maroon-dk);
    background: var(--maroon-pale);
    box-shadow: 0 8px 24px rgba(85, 36, 88, 0.12);
    outline: none;
}
.activity-tile[open] {
    border-color: var(--maroon);
    background: var(--maroon-pale);
    box-shadow: 0 0 0 2px var(--maroon-lt), 0 10px 28px rgba(85, 36, 88, 0.16);
}
.activity-tile__summary {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    min-height: 11rem;
    padding: 1.25rem 1rem;
    text-align: center;
    cursor: pointer;
    list-style: none;
}
.activity-tile__summary::-webkit-details-marker {
    display: none;
}
.activity-tile__summary::marker {
    content: '';
}
.activity-tile__summary:hover,
.activity-tile__summary:focus-visible {
    outline: none;
    background: var(--maroon-pale);
}
.activity-tile__body {
    padding: 0 1.15rem 1.25rem;
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 0.92rem;
    line-height: 1.65;
    color: var(--charcoal);
    border-top: 1px solid rgba(85, 36, 88, 0.12);
}
.activity-tile__body p {
    margin: 0 0 0.75rem;
}
.activity-tile__body p:last-child {
    margin-bottom: 0;
}
.activity-tile__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: var(--saair-teal-pale);
    color: var(--maroon-dk);
    font-size: 1.1rem;
}
.activity-tile__title {
    font-family: var(--ff-sans);
    font-size: 1rem;
    font-weight: 700;
    color: var(--maroon-dk);
    line-height: 1.3;
}
.activity-tile__teaser {
    font-family: var(--ff-sans);
    font-size: 0.82rem;
    line-height: 1.45;
    color: var(--charcoal);
    flex: 1;
}
.activity-tile__hint {
    font-size: 0.68rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: rgba(85, 36, 88, 0.6);
    font-weight: 600;
}

@media (max-width: 768px) {
    .home-activities__grid {
        grid-template-columns: 1fr;
    }
    .activity-tile__summary {
        min-height: 0;
    }
    .activity-tile--link {
        min-height: 0;
    }
}

/* Optional activity detail page */
.activity-page__banner {
    background: #fff;
    border-bottom: 1px solid var(--grey-lt);
}
.activity-page__banner .cn-doc-section__heading {
    color: var(--charcoal);
    text-shadow: none;
}
.activity-page__back {
    margin: 0 0 1.25rem;
    font-family: var(--ff-sans);
    font-size: 0.9rem;
}
.activity-page__back a {
    color: var(--maroon);
    font-weight: 600;
    text-decoration: none;
}
.activity-page__back a:hover {
    text-decoration: underline;
}
.activity-page__download {
    margin: 1.5rem 0;
}
.activity-page__gallery-title {
    margin: 2rem 0 1rem;
    font-family: var(--ff-sans);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--maroon-dk);
}
.activity-page__gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.85rem;
}
.activity-page__figure {
    margin: 0;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--grey-lt);
    background: #fafafa;
}
.activity-page__figure a {
    display: block;
    line-height: 0;
}
.activity-page__figure img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.25s ease;
}
.activity-page__figure a:hover img {
    transform: scale(1.03);
}
.activity-page__no-photos {
    margin: 1.5rem 0 0;
    padding: 1rem 1.15rem;
    background: #fafafa;
    border: 1px dashed var(--grey-lt);
    border-radius: 8px;
    font-family: var(--ff-sans);
    font-size: 0.92rem;
    color: #64748b;
}