/* ========================================
   Sponsors Page - Styles
   ======================================== */

.sponsor-section {
    margin-bottom: 50px;
}

.sponsor-section h2 {
    font-size: 1.8rem;
    font-weight: 800;
    color: #6B21A8;
    text-align: center;
    margin-bottom: 30px;
    letter-spacing: 1px;
}

.sponsor-section h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: #6B21A8;
    margin: 10px auto 0;
    border-radius: 2px;
}

/* Shared grid */
.sponsor-grid-diamond,
.sponsor-grid,
.sponsor-grid-edu {
    display: grid;
    gap: 20px;
    justify-items: center;
}

/* Diamond: 3 columns max */
.sponsor-grid-diamond {
    grid-template-columns: repeat(3, 1fr);
    max-width: 900px;
    margin: 0 auto;
}

/* Regular sponsors: 4 columns */
.sponsor-grid {
    grid-template-columns: repeat(4, 1fr);
    max-width: 900px;
    margin: 0 auto;
}

/* Educational: 3 columns */
.sponsor-grid-edu {
    grid-template-columns: repeat(3, 1fr);
    max-width: 900px;
    margin: 0 auto;
}

.sponsor-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    width: 100%;
    min-height: 100px;
}

.sponsor-card:hover {
    border-color: #6B21A8;
    box-shadow: 0 4px 16px rgba(107, 33, 168, 0.15);
    transform: translateY(-2px);
}

.sponsor-card img {
    max-width: 100%;
    max-height: 60px;
    object-fit: contain;
    display: block;
}

/* Diamond cards - larger logos */
.sponsor-grid-diamond .sponsor-card {
    min-height: 120px;
    padding: 30px 24px;
}

.sponsor-grid-diamond .sponsor-card img {
    max-height: 80px;
}

/* Responsive */
@media (max-width: 1024px) {
    .sponsor-grid-diamond {
        grid-template-columns: repeat(3, 1fr);
    }
    .sponsor-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sponsor-section h2 {
        font-size: 1.4rem;
    }

    .sponsor-grid-diamond {
        grid-template-columns: repeat(2, 1fr);
    }

    .sponsor-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .sponsor-grid-edu {
        grid-template-columns: repeat(2, 1fr);
    }

    .sponsor-card {
        padding: 18px;
        min-height: 80px;
    }

    .sponsor-card img {
        max-height: 45px;
    }

    .sponsor-grid-diamond .sponsor-card img {
        max-height: 55px;
    }
}

@media (max-width: 480px) {
    .sponsor-grid-diamond,
    .sponsor-grid,
    .sponsor-grid-edu {
        grid-template-columns: 1fr;
    }
}