/* ====================================================
   SEÇÃO PATROCINADORES — Parceiros e Apoio
   Projeto: Abril pra Angola
   Layout: CSS Grid + Flexbox
   Unidade: rem (base 16px = 1rem)
   ==================================================== */

/* ── Seção Principal ───────────────────────────────── */
.section-sponsors {
    padding-block: var(--section-padding-y);
    background-color: var(--color-bg-alt);
}

.section-sponsors > .container {
    display: grid;
    gap: var(--spacing-12);
}

/* ── Cabeçalho ─────────────────────────────────────── */
.section-sponsors__header {
    display: grid;
    gap: var(--spacing-4);
    text-align: left;
}

/* Título — idêntico ao FAQ em cor e tipologia */
.section-sponsors__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    line-height: var(--line-height-tight);
}

/* Linha decorativa abaixo do título — padrão FAQ */
.section-sponsors__title::after {
    content: '';
    display: block;
    width: 3rem;
    height: 0.25rem;
    background-color: var(--color-primary-0);
    border-radius: var(--radius-full);
    margin-block-start: var(--spacing-4);
    margin-inline: 0;
}

/* ── Carousel — Estrutura ───────────────────────────── */
.sponsors-carousel {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    min-width: 0;
    overflow: hidden;
}

/* ── Viewport — Janela de visualização ─────────────── */
.sponsors-carousel__viewport {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    border-radius: var(--radius-lg);
}

/* ── Track — Trilho deslizante ─────────────────────── */
.sponsors-carousel__track {
    display: flex;
    transition: transform var(--transition-slow);
    list-style: none;
    margin: 0;
    padding: 0;
    will-change: transform;
}

/* ── Slide — Cada página de 4 itens ────────────────── */
.sponsors-carousel__slide {
    flex: 0 0 100%;
    min-width: 0;
    list-style: none;
}

/* ── Grupo — Grade de 4 patrocinadores ─────────────── */
.sponsors-carousel__group {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--spacing-3);
    padding: var(--spacing-2);
    list-style: none;
    margin: 0;
}

/* ── Item individual do patrocinador ──────────────── */
.sponsor-item {
    display: flex;
    align-items: stretch;
}

/* ── Link wrapper ─────────────────────────────────── */
.sponsor-item__link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-3);
    width: 100%;
    padding: var(--spacing-5) var(--spacing-4);
    background-color: var(--color-bg);
    border: var(--border-width-thin) solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    color: var(--color-text-muted);
    transition:
        box-shadow var(--transition-base),
        border-color var(--transition-base),
        transform var(--transition-base),
        background-color var(--transition-fast);
}

.sponsor-item__link:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-0);
    transform: translateY(-0.125rem);
    color: var(--color-text);
}

.sponsor-item__link:active {
    transform: translateY(0);
    box-shadow: var(--shadow-xs);
    background-color: var(--color-primary-100);
    border-color: var(--color-primary-0);
}

.sponsor-item__link:focus-visible {
    outline: var(--border-width-base) solid var(--color-primary-0);
    outline-offset: 0.125rem;
}

/* Item sem link */
.sponsor-item:not(:has(.sponsor-item__link)) {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-3);
    padding: var(--spacing-5) var(--spacing-4);
    background-color: var(--color-bg);
    border: var(--border-width-thin) solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

/* ── Figure e imagem do logo ────────────────────────── */
.sponsor-item__figure {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 4.5rem; /* mobile: menor para caber 4 colunas */
    overflow: hidden;
    margin: 0;
}

.sponsor-item__logo {
    height: 4.5rem; /* mobile */
    width: auto;
    max-width: 100%;
    object-fit: contain;
    object-position: center;
    display: block;
    transition: filter var(--transition-base), opacity var(--transition-base);
}

/* Efeito hover na imagem via link pai */
.sponsor-item__link:hover .sponsor-item__logo {
    filter: none;
    opacity: 1;
}

/* Placeholder quando não há imagem */
.sponsor-item__logo-placeholder {
    display: block;
    width: 6rem;
    height: 6rem;
    border-radius: var(--radius-full);
    background-color: var(--color-neutral-200);
}

/* ── Nome do patrocinador ─────────────────────────── */
.sponsor-item__name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted);
    text-align: center;
    line-height: var(--line-height-snug);
    transition: color var(--transition-fast);
}

.sponsor-item__link:hover .sponsor-item__name {
    color: var(--color-primary-0);
}

/* ── Botões de navegação (setas) ────────────────────── */
.sponsors-carousel__btn {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;   /* 44px */
    height: 2.75rem;  /* 44px */
    border-radius: var(--radius-full);
    background-color: var(--color-bg);
    border: var(--border-width-base) solid var(--color-border);
    color: var(--color-primary-0);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition:
        background-color var(--transition-fast),
        border-color var(--transition-fast),
        color var(--transition-fast),
        box-shadow var(--transition-fast),
        transform var(--transition-fast);
}

.sponsors-carousel__btn:hover:not(:disabled) {
    background-color: var(--color-primary-0);
    border-color: var(--color-primary-0);
    color: var(--color-neutral-800);
    box-shadow: var(--shadow-md);
    transform: scale(1.08);
}

.sponsors-carousel__btn:active:not(:disabled) {
    background-color: var(--color-primary-400);
    border-color: var(--color-primary-500);
    color: var(--color-neutral-0);
    transform: scale(0.96);
    box-shadow: var(--shadow-xs);
}

.sponsors-carousel__btn:focus-visible {
    outline: var(--border-width-base) solid var(--color-primary-0);
    outline-offset: 0.125rem;
}

/* Estado desabilitado (primeira/última página) */
.sponsors-carousel__btn:disabled,
.sponsors-carousel__btn.is-disabled {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
    box-shadow: none;
    transform: none;
}

/* ── Navegação por Bullets ──────────────────────────── */
.sponsors-carousel__nav {
    display: flex;
    justify-content: center;
    margin-block-start: var(--spacing-8);
}

.sponsors-carousel__bullets {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    list-style: none;
    margin: 0;
    padding: 0;
}

.sponsors-carousel__bullet-item {
    list-style: none;
}

/* Bullet base */
.sponsors-carousel__bullet {
    display: block;
    width: 0.625rem;  /* 10px */
    height: 0.625rem; /* 10px */
    padding: 0;
    border-radius: var(--radius-full);
    background-color: var(--color-neutral-300);
    border: none;
    cursor: pointer;
    transition:
        background-color var(--transition-base),
        transform var(--transition-base),
        width var(--transition-base);
}

/* Bullet hover */
.sponsors-carousel__bullet:hover {
    background-color: var(--color-primary-300);
    transform: scale(1.25);
}

/* Bullet ativo */
.sponsors-carousel__bullet.is-active {
    background-color: var(--color-primary-0);
    width: 1.75rem; /* pill expandida */
    transform: none;
}

/* Bullet ativo hover */
.sponsors-carousel__bullet.is-active:hover {
    background-color: var(--color-primary-0);
    transform: none;
}

.sponsors-carousel__bullet:focus-visible {
    outline: var(--border-width-base) solid var(--color-primary-0);
    outline-offset: 0.25rem;
}

/* ── Responsivo: Mobile (< 768px) ────────────────────── */
@media (max-width: 47.9375rem) {
    /* Esconde setas no mobile — carrossel controlado pelos bullets */
    .sponsors-carousel__btn {
        display: none;
    }

    /* 2 colunas no mobile (JS coloca 2 itens por slide) */
    .sponsors-carousel__group {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: var(--spacing-4);
    }

    /* Padding interno dos cards levemente reduzido */
    .sponsor-item__link {
        padding: var(--spacing-4) var(--spacing-3);
        gap: var(--spacing-2);
    }

    .sponsor-item:not(:has(.sponsor-item__link)) {
        padding: var(--spacing-4) var(--spacing-3);
        gap: var(--spacing-2);
    }

    /* Logo menor, mas legível para 2 colunas */
    .sponsor-item__figure {
        height: 6rem;
    }

    .sponsor-item__logo {
        height: 6rem;
    }
}

/* ── Responsivo: Tablet (≥ 768px) ────────────────────── */
@media (min-width: 48rem) {
    .section-sponsors__title {
        font-size: var(--font-size-3xl);
    }

    .sponsors-carousel__group {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: var(--spacing-8);
        padding: var(--spacing-2);
    }

    .sponsor-item__figure {
        height: 9.375rem; /* 150px — restaura tamanho original */
    }

    .sponsor-item__logo {
        height: 9.375rem;
    }

    .sponsors-carousel__btn {
        width: 3rem;
        height: 3rem;
    }
}

/* ── Responsivo: Desktop (≥ 1024px) ──────────────────── */
@media (min-width: 64rem) {
    .section-sponsors__title {
        font-size: var(--font-size-4xl);
    }

    .sponsors-carousel {
        gap: var(--spacing-6);
    }
}