/* ============================================
   SPONSOR SLIDER STYLES
   Ana Sayfa - About Us bölümü altı
   ============================================ */

.sponsors {
    position: relative;
    padding: var(--spacing-2xl, 4rem) 0;
    overflow: hidden;
}

.sponsors__header {
    text-align: center;
    margin-bottom: var(--spacing-xl, 3rem);
}

.sponsor-slider {
    position: relative;
    width: 100%;
    overflow: hidden;
    /* Sol / sağ kenarlarda yumuşak fade efekti */
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    padding: var(--spacing-sm, 1rem) 0;
}

.sponsor-slider__track {
    display: flex;
    width: max-content;
    will-change: transform;
    animation: sponsor-marquee var(--marquee-duration, 40s) linear infinite;
}

/* Mouse üzerine gelince duraklama */
.sponsor-slider:hover .sponsor-slider__track,
.sponsor-slider__track.is-paused {
    animation-play-state: paused;
}

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

/* ============================================
   SPONSOR CARD
   ============================================ */

.sponsor-card {
    flex: 0 0 auto;
    /* Kartlar arası boşluk (slider'ın kusursuz döngüsü için card içine yazıldı) */
    margin-right: var(--sponsor-gap, 24px);
    width: clamp(160px, 18vw, 220px);
    height: clamp(92px, 10vw, 120px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card, rgba(255, 255, 255, 0.03));
    border: 1px solid var(--color-border, rgba(255, 255, 255, 0.08));
    border-radius: var(--radius-md, 1rem);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition:
        transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
        border-color 0.35s cubic-bezier(0.4, 0, 0.2, 1),
        box-shadow 0.35s cubic-bezier(0.4, 0, 0.2, 1),
        background 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
}

/* Hover: hafif büyüme + renkli görünme */
.sponsor-card:hover {
    transform: scale(1.06);
    border-color: var(--color-border-hover, rgba(212, 168, 83, 0.3));
    box-shadow: 0 0 30px rgba(212, 168, 83, 0.25);
    background: var(--color-bg-glass, rgba(255, 255, 255, 0.05));
    z-index: 2;
}

.sponsor-card__logo {
    max-width: 72%;
    max-height: 58%;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(1) brightness(1.15);
    opacity: 0.6;
    transition:
        filter 0.35s cubic-bezier(0.4, 0, 0.2, 1),
        opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.sponsor-card:hover .sponsor-card__logo {
    filter: grayscale(0) brightness(1);
    opacity: 1;
    transform: scale(1.08);
}

/* Logo yoksa isim metin olarak gösterilir */
.sponsor-card__name {
    font-family: var(--font-secondary, 'Poppins', sans-serif);
    font-size: clamp(13px, 1.3vw, 17px);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-text-secondary, #a0a0a0);
    padding: 0 12px;
    text-align: center;
    transition: color 0.35s cubic-bezier(0.4, 0, 0.2, 1), transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.sponsor-card:hover .sponsor-card__name {
    color: var(--color-accent, #d4a853);
    transform: scale(1.05);
}

/* ============================================
   RESPONSIVE
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
    .sponsor-card {
        width: clamp(150px, 22vw, 200px);
        height: clamp(85px, 11vw, 105px);
    }
}

/* Mobil */
@media (max-width: 640px) {
    .sponsors {
        padding: var(--spacing-xl, 3rem) 0;
    }

    .sponsor-card {
        width: clamp(130px, 38vw, 160px);
        height: clamp(75px, 20vw, 90px);
        margin-right: 16px;
    }

    .sponsor-card__name {
        font-size: 12px;
        letter-spacing: 1px;
    }
}

/* Erişilebilirlik: hareket tercihine saygı göster */
@media (prefers-reduced-motion: reduce) {
    .sponsor-slider__track {
        animation-play-state: paused;
    }
}