.sponsors-section { background: #fff; border-top: 1px solid rgba(0,0,0,0.06); }
.sponsors-group { margin-bottom: 36px; }
.sponsors-group:last-child { margin-bottom: 0; }
.sponsors-group-label { display: flex; align-items: center; gap: 8px; margin-bottom: 18px; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: rgba(0,0,0,0.35); }
.sponsors-group-label::after { content: ''; flex: 1; height: 1px; background: rgba(0,0,0,0.06); }
.sponsors-group-label.principal { color: #b45309; }
.sponsors-group-label.principal::after { background: rgba(251,191,36,0.2); }
.sponsors-logos { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: center; }
.sponsor-card { display: flex; align-items: center; justify-content: center; background: #f9f9f9; border: 1px solid rgba(0,0,0,0.06); border-radius: 12px; padding: 16px 24px; transition: all 0.3s ease; text-decoration: none; }
.sponsor-card:hover { border-color: rgba(140,198,63,0.3); box-shadow: 0 6px 20px rgba(0,0,0,0.06); transform: translateY(-2px); }
.sponsor-card img { max-height: 50px; max-width: 140px; object-fit: contain; filter: grayscale(30%); transition: filter 0.3s; }
.sponsor-card:hover img { filter: grayscale(0%); }
.sponsors-group.principal .sponsor-card { padding: 24px 36px; background: linear-gradient(135deg, rgba(251,191,36,0.04), rgba(251,191,36,0.01)); border-color: rgba(251,191,36,0.12); }
.sponsors-group.principal .sponsor-card:hover { border-color: rgba(251,191,36,0.35); }
.sponsors-group.principal .sponsor-card img { max-height: 70px; max-width: 180px; filter: grayscale(0%); }
@media (max-width: 768px) { .sponsors-logos { gap: 10px; } .sponsor-card { padding: 12px 16px; } .sponsor-card img { max-height: 36px; max-width: 100px; } .sponsors-group.principal .sponsor-card img { max-height: 50px; max-width: 130px; } }