/* ============================================================
   SPONSORZY – PREMIUM GRID + MAIN SPONSOR
   ============================================================ */

.sponsors-section {
  padding-top: 70px;
  padding-bottom: 90px;
  background: #ffffff;
}

.sponsors-lead {
  max-width: 760px;
  margin: 0 auto 50px auto;
  font-size: 18px;
  color: #555;
  line-height: 1.65;
}

/* GŁÓWNY SPONSOR */
.main-sponsor {
  text-align: center;
  margin-bottom: 50px;
}

.main-sponsor img {
  width: 240px;
  height: auto;
  object-fit: contain;
  filter: grayscale(0);
  transition: filter .3s ease;
}

.main-sponsor img:hover {
  filter: grayscale(0%);
}

.main-sponsor span {
  display: block;
  margin-top: 12px;
  font-size: 16px;
  color: #444;
  font-weight: 600;
}

/* SIATKA SPONSORÓW */
.sponsors-grid {
  display: grid;
  gap: 30px;
  justify-items: center;
}

.sponsor-card {
  background: #f8fafd;
  border-radius: 14px;
  padding: 20px 26px;
  border: 1px solid #e2e7f3;
  box-shadow: 0 10px 28px rgba(0,0,0,0.05);
  transition: transform .25s ease, box-shadow .25s ease;
}

.sponsor-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 32px rgba(0,0,0,0.12);
}

.sponsor-card img {
  width: 180px;
  height: auto;
  object-fit: contain;
  filter: grayscale(100%);
  transition: filter .3s ease;
}

.sponsor-card:hover img {
  filter: grayscale(0%);
}

/* RESPONSYWNOŚĆ */
@media (min-width: 768px) {
  .sponsors-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .sponsors-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}