/*
 * SBN Developer Notes.
 * Scope: sponsor archive/cards, sponsor carousel, application page polish.
 * Used by: sponsorship page, sponsor shortcodes, membership application cards.
 * Edit risk: medium; sponsor carousel also depends on JS.
 * QA: sponsor packages, carousel drag, application form layout, mobile cards.
 */

/* ==========================================================================
   SPONSORS + MEMBERSHIP APPLICATION
   ========================================================================== */

.sbn-sponsor-intro {
    display: grid;
    gap: 4px;
    color: var(--sbn-ink);
    font-size: 14px;
    line-height: 1.5;
}

.sbn-sponsor-intro strong {
    color: var(--sbn-navy);
    font-size: 16px;
}

.sbn-sponsors-section {
    padding-top: 52px;
    padding-bottom: 80px;
}

.sbn-sponsor-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    max-width: var(--sbn-max-width);
    margin: 0 auto;
}

.sbn-sponsor-listing-card {
    display: flex;
    flex-direction: column;
    min-height: 100%;
    padding: 0;
    border: 1px solid rgba(195, 204, 210, 0.72);
    border-radius: var(--sbn-radius-card);
    background: #fff;
    box-shadow: var(--sbn-shadow-sm);
    overflow: hidden;
}

.sbn-sponsor-card-top {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px 16px 14px;
    margin-bottom: 0;
}

.sbn-sponsor-card-copy {
    flex: 1;
    min-width: 0;
}

.sbn-sponsor-tier {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin-bottom: 0;
    padding: 8px 16px;
    border-bottom: 1px solid rgba(201, 163, 90, 0.22);
    border-radius: 0;
    background: rgba(201, 163, 90, 0.1);
    color: var(--sbn-gold);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.16em;
    line-height: 1.2;
    text-transform: uppercase;
}

.sbn-sponsor-tier--platinum {
    background: linear-gradient(90deg, rgba(118, 128, 145, 0.14), rgba(201, 163, 90, 0.08));
    color: #6f7785;
}

.sbn-sponsor-tier--gold {
    background: rgba(201, 163, 90, 0.14);
    color: var(--sbn-gold);
}

.sbn-sponsor-tier--bronze {
    background: rgba(180, 96, 61, 0.1);
    color: var(--sbn-peel, #b4603d);
}

.sbn-sponsor-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 74px;
    min-width: 100px;
    padding: 10px;
    border: 1px solid rgba(195, 204, 210, 0.68);
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 6px 14px rgba(15, 30, 61, 0.07);
    overflow: hidden;
}

.sbn-sponsor-logo-img {
    display: block;
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

.sbn-sponsor-logo-fallback {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    border-radius: 7px;
    background: var(--sbn-navy);
    color: var(--sbn-gold);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.08em;
}

.sbn-sponsor-name {
    margin: 0;
    color: var(--sbn-navy);
    font-family: var(--sbn-serif);
    font-size: 24px;
    font-weight: 400;
    line-height: 1.12;
}

.sbn-sponsor-desc {
    display: -webkit-box;
    overflow: hidden;
    margin: 5px 0 0;
    color: rgba(20, 33, 61, 0.74);
    font-size: 14px;
    line-height: 1.48;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.sbn-sponsor-offer {
    display: grid;
    gap: 7px;
    margin: 0 16px 16px;
    padding: 13px 14px;
    border-top: 1px solid rgba(201, 163, 90, 0.26);
    border-right: 1px solid rgba(201, 163, 90, 0.26);
    border-bottom: 1px solid rgba(201, 163, 90, 0.26);
    border-left: 1px solid rgba(201, 163, 90, 0.26);
    border-radius: 10px;
    background: rgba(201, 163, 90, 0.07);
}

.sbn-sponsor-offer span {
    color: var(--sbn-gold);
    font-size: 10px;
    letter-spacing: 0.14em;
    line-height: 1;
    text-transform: uppercase;
}

.sbn-sponsor-offer strong {
    color: var(--sbn-navy);
    font-size: 14px;
    font-weight: 400;
    line-height: 1.42;
}

.sbn-sponsor-offer-text {
    display: -webkit-box;
    overflow: hidden;
    margin: 0;
    color: var(--sbn-navy);
    font-size: 14px;
    font-weight: 400;
    line-height: 1.42;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.sbn-sponsor-expand {
    display: grid;
    gap: 7px;
    overflow: visible;
    color: rgba(20, 33, 61, 0.74);
    font-size: 14px;
    line-height: 1.48;
    -webkit-line-clamp: unset;
}

.sbn-sponsor-offer-text.sbn-sponsor-expand {
    color: var(--sbn-navy);
    font-weight: 400;
}

.sbn-sponsor-expand summary {
    display: -webkit-box;
    overflow: hidden;
    padding: 0;
    border: 0;
    background: transparent;
    color: inherit;
    cursor: pointer;
    font-weight: inherit;
    list-style: none;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.sbn-sponsor-offer .sbn-sponsor-expand summary {
    font-weight: 400;
}

.sbn-sponsor-expand summary::-webkit-details-marker {
    display: none;
}

.sbn-sponsor-expand p {
    margin: 0;
}

.sbn-sponsor-carousel-section {
    overflow: hidden;
    padding: 38px 0 44px;
    background: var(--sbn-paper);
    border-bottom: 1px solid var(--sbn-mist-soft);
}

.sbn-sponsor-carousel-head {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 20px;
    max-width: var(--sbn-max-width);
    margin: 0 auto 22px;
    padding: 0 var(--sbn-dynamic-edge);
    text-align: center;
}

.sbn-sponsor-carousel-head > div {
    display: grid;
    justify-items: center;
}

.sbn-sponsor-carousel-head .sbn-section-label {
    justify-content: center;
}

.sbn-sponsor-carousel-head .sbn-section-label::before {
    display: none;
}

.sbn-sponsor-carousel-head h2 {
    max-width: none;
    margin: 0;
    color: var(--sbn-navy);
    font-family: var(--sbn-serif);
    font-size: 2.125rem;
    font-weight: 400;
    line-height: 1.12;
    white-space: nowrap;
}

.sbn-sponsor-carousel {
    cursor: grab;
    overflow-x: auto;
    overflow-y: hidden;
    width: 100%;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
}

.sbn-sponsor-carousel::-webkit-scrollbar {
    display: none;
}

.sbn-sponsor-carousel.is-dragging {
    cursor: grabbing;
    user-select: none;
}

.sbn-sponsor-carousel-track {
    display: flex;
    align-items: stretch;
    width: max-content;
    gap: 18px;
    padding: 0 var(--sbn-dynamic-edge) 8px;
}

.sbn-sponsor-carousel-section--marquee .sbn-sponsor-carousel-track {
    animation: sbn-sponsor-marquee 52s linear infinite;
}

.sbn-sponsor-carousel-section--marquee .sbn-sponsor-carousel:hover .sbn-sponsor-carousel-track,
.sbn-sponsor-carousel-section--marquee .sbn-sponsor-carousel:focus-within .sbn-sponsor-carousel-track,
.sbn-sponsor-carousel-section--marquee .sbn-sponsor-carousel:has(details[open]) .sbn-sponsor-carousel-track,
.sbn-sponsor-carousel-section--marquee .sbn-sponsor-carousel.is-dragging .sbn-sponsor-carousel-track {
    animation-play-state: paused;
}

.sbn-sponsor-carousel-section--single .sbn-sponsor-carousel-track {
    width: 100%;
    justify-content: center;
}

.sbn-sponsor-carousel .sbn-sponsor-listing-card {
    flex: 0 0 430px;
    padding: 0;
    border-width: 1px;
    box-shadow: var(--sbn-shadow-sm);
}

.sbn-sponsor-carousel .sbn-sponsor-logo {
    width: 100px;
    height: 74px;
    min-width: 100px;
    min-height: 74px;
    margin: 0;
    padding: 10px;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 6px 14px rgba(15, 30, 61, 0.07);
}

.sbn-sponsor-carousel .sbn-sponsor-logo-img {
    max-height: 100%;
}

.sbn-sponsor-carousel .sbn-sponsor-logo-fallback {
    width: 100%;
    height: 100%;
    border-radius: 7px;
    font-size: 13px;
}

.sbn-sponsor-carousel .sbn-sponsor-name {
    font-size: 24px;
    line-height: 1.12;
}

.sbn-sponsor-carousel .sbn-sponsor-desc:not(.sbn-sponsor-expand) {
    display: -webkit-box;
    overflow: hidden;
    margin-top: 5px;
    font-size: 13px;
    line-height: 1.48;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.sbn-sponsor-carousel .sbn-sponsor-offer {
    gap: 7px;
    margin: 0 16px 16px;
    padding: 13px 14px;
    border-radius: 10px;
}

.sbn-sponsor-carousel .sbn-sponsor-offer span {
    font-size: 9px;
}

.sbn-sponsor-carousel .sbn-sponsor-offer strong {
    display: -webkit-box;
    overflow: hidden;
    font-size: 14px;
    line-height: 1.38;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.sbn-sponsor-carousel .sbn-sponsor-offer-text:not(.sbn-sponsor-expand) {
    display: -webkit-box;
    overflow: hidden;
    font-size: 14px;
    line-height: 1.38;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

@keyframes sbn-sponsor-marquee {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-50%);
    }
}

.sbn-application-wrap {
    padding: 42px var(--sbn-dynamic-edge) 62px;
    background: var(--sbn-paper);
}

.sbn-application-form {
    display: grid;
    gap: 22px;
    max-width: 1040px;
    margin: 0 auto;
}

.sbn-application-panel,
.sbn-application-submit {
    padding: clamp(24px, 4vw, 40px);
    border: 1px solid var(--sbn-mist-soft);
    border-radius: var(--sbn-radius-card);
    background: #fff;
    box-shadow: var(--sbn-shadow-sm);
}

.sbn-application-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 22px;
}

.sbn-application-head h2 {
    margin: 0;
    color: var(--sbn-navy);
    font-family: var(--sbn-serif);
    font-size: 2.25rem;
    font-weight: 400;
    line-height: 1.1;
}

.sbn-application-head h2 span {
    margin-right: 12px;
    color: var(--sbn-gold);
    font-size: 0.78em;
    font-style: italic;
}

.sbn-application-head > strong {
    color: rgba(20, 33, 61, 0.56);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.sbn-application-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 28px;
}

.sbn-app-field {
    display: grid;
    gap: 8px;
}

.sbn-app-field--full {
    grid-column: 1 / -1;
}

.sbn-app-field label,
.sbn-app-consent {
    color: var(--sbn-navy);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.08em;
    line-height: 1.35;
}

.sbn-app-field label span,
.sbn-app-consent strong {
    color: var(--sbn-peel, #b4603d);
}

.sbn-app-field label small {
    color: rgba(20, 33, 61, 0.74);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0;
}

.sbn-app-field input,
.sbn-app-field select,
.sbn-app-field textarea {
    width: 100%;
    min-height: 54px;
    padding: 12px 16px;
    border: 1px solid var(--sbn-mist);
    border-radius: 10px;
    background: var(--sbn-paper);
    color: var(--sbn-navy);
    font-family: var(--sbn-sans);
    font-size: 15px;
    line-height: 1.35;
    outline: none;
}

.sbn-app-field textarea {
    min-height: 92px;
    resize: vertical;
}

.sbn-app-field input:focus,
.sbn-app-field select:focus,
.sbn-app-field textarea:focus {
    border-color: var(--sbn-gold);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(201, 163, 90, 0.14);
}

.sbn-app-field p,
.sbn-application-lede {
    margin: 0;
    color: rgba(20, 33, 61, 0.78);
    font-size: 14px;
    line-height: 1.65;
}

.sbn-application-lede {
    margin: -8px 0 22px;
}

.sbn-app-checks {
    display: grid;
    gap: 14px;
}

.sbn-app-checks label,
.sbn-app-consent {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px 18px;
    border: 1px solid var(--sbn-mist-soft);
    border-radius: 14px;
    background: #fff;
}

.sbn-app-checks input,
.sbn-app-consent input {
    width: 28px;
    height: 28px;
    min-width: 28px;
    margin-top: 2px;
    accent-color: var(--sbn-estuary);
}

.sbn-app-checks span {
    color: var(--sbn-navy);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.08em;
    line-height: 1.45;
}

.sbn-app-checks strong {
    margin-right: 4px;
    font-size: 16px;
    font-weight: 800;
}

.sbn-application-submit {
    display: grid;
    gap: 20px;
}

.sbn-application-submit-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 24px;
    align-items: center;
}

.sbn-application-submit-row p {
    max-width: 620px;
    margin: 0;
    color: rgba(20, 33, 61, 0.72);
    font-size: 14px;
    line-height: 1.65;
}

.sbn-application-submit-row .btn-primary {
    min-width: 240px;
}

@media (max-width: 1000px) {
    .sbn-sponsor-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 760px) {
    .sbn-sponsor-carousel-head {
        align-items: center;
        flex-direction: column;
    }

    .sbn-sponsor-carousel-head h2 {
        white-space: normal;
    }

    .sbn-sponsor-carousel .sbn-sponsor-listing-card {
        flex-basis: min(88vw, 420px);
    }

    .sbn-sponsor-card-top {
        gap: 13px;
        padding: 16px;
    }

    .sbn-sponsor-logo,
    .sbn-sponsor-carousel .sbn-sponsor-logo {
        width: 92px;
        height: 70px;
        min-width: 92px;
    }

    .sbn-sponsor-name,
    .sbn-sponsor-carousel .sbn-sponsor-name {
        font-size: 23px;
    }

    .sbn-sponsor-grid,
    .sbn-application-grid,
    .sbn-application-submit-row {
        grid-template-columns: 1fr;
    }

    .sbn-application-head {
        flex-direction: column;
    }

    .sbn-application-submit-row .btn-primary {
        width: 100%;
        min-width: 0;
    }
}