/* ==========================================================================
   Sponsors Page Styles - Team 2852 High Voltage
   ========================================================================== */

/* ==========================================================================
   Sponsors Section
   ========================================================================== */

.sponsors-section {
  padding: var(--space-16) 0;
  background: var(--hv-gray-100);
}

/* ==========================================================================
   Tier Sections
   ========================================================================== */

.sponsor-tier {
  margin-bottom: var(--space-16);
}

.sponsor-tier:last-child {
  margin-bottom: 0;
}

.tier-header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.tier-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  font-size: 1.75rem;
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow-md);
}

.sponsor-tier.platinum .tier-icon {
  background: linear-gradient(135deg, var(--tier-platinum-start), var(--tier-platinum-end));
  color: var(--hv-gray-800);
}

.sponsor-tier.gold .tier-icon {
  background: linear-gradient(135deg, var(--tier-gold-start), var(--tier-gold-end));
  color: var(--hv-gray-800);
}

.sponsor-tier.silver .tier-icon {
  background: linear-gradient(135deg, var(--tier-silver-start), var(--tier-silver-end));
  color: var(--hv-gray-800);
}

.sponsor-tier.bronze .tier-icon {
  background: linear-gradient(135deg, var(--tier-bronze-start), var(--tier-bronze-end));
  color: var(--hv-white);
}

.tier-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-3);
  color: var(--hv-gray-900);
}

.tier-line {
  width: 60px;
  height: 4px;
  background: var(--hv-primary);
  margin: 0 auto;
  border-radius: var(--radius-full);
}

/* ==========================================================================
   Sponsor Grid
   ========================================================================== */

.sponsor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 420px));
  gap: var(--space-8);
  justify-content: center;
  align-items: stretch;
}

/* All tiers use the same grid - uniform sizing */
.sponsor-grid-platinum,
.sponsor-grid-gold,
.sponsor-grid-silver,
.sponsor-grid-bronze {
  grid-template-columns: repeat(auto-fill, minmax(330px, 420px));
}

/* ==========================================================================
   Sponsor Cards
   ========================================================================== */

.sponsor-card {
  background: var(--hv-white);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 270px;
  aspect-ratio: 16/10;
}

.sponsor-card:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
}

.sponsor-card img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: grayscale(30%);
  transition: filter var(--transition-base);
}

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

/* For logos with white text that need a contrasting background */
.sponsor-card.light-bg {
  background: #9f9797;
}

/* For small logos that need to be scaled up */
.sponsor-card.sponsor-card-scale-up img {
  transform: scale(2);
}

/* ==========================================================================
   CTA Section
   ========================================================================== */

.sponsors-cta {
  background: linear-gradient(135deg, var(--hv-primary), var(--hv-primary-dark));
  padding: var(--space-16) 0;
  text-align: center;
  color: var(--hv-white);
}

.sponsors-cta h2 {
  color: var(--hv-white);
  margin-bottom: var(--space-4);
}

.sponsors-cta p {
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto var(--space-8);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 991.98px) {
  .sponsor-grid,
  .sponsor-grid-platinum,
  .sponsor-grid-gold,
  .sponsor-grid-silver,
  .sponsor-grid-bronze {
    grid-template-columns: repeat(auto-fill, minmax(300px, 375px));
  }
}

@media (max-width: 767.98px) {
  .sponsors-section {
    padding: var(--space-12) 0;
  }

  .sponsor-tier {
    margin-bottom: var(--space-12);
  }

  .sponsor-grid,
  .sponsor-grid-platinum,
  .sponsor-grid-gold,
  .sponsor-grid-silver,
  .sponsor-grid-bronze {
    grid-template-columns: repeat(auto-fill, minmax(240px, 300px));
    gap: var(--space-4);
  }

  .sponsor-card {
    min-height: 210px;
  }

  .tier-icon {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }

  .tier-title {
    font-size: var(--font-size-2xl);
  }
}

@media (max-width: 575.98px) {
  .sponsors-section {
    padding: var(--space-8) 0;
  }

  .sponsors-section .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .sponsor-grid,
  .sponsor-grid-platinum,
  .sponsor-grid-gold,
  .sponsor-grid-silver,
  .sponsor-grid-bronze {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
    width: 100%;
    max-width: 100%;
  }

  .sponsor-card {
    padding: var(--space-3);
    min-height: 120px;
    aspect-ratio: 4/3;
    width: 100%;
    box-sizing: border-box;
  }

  .sponsor-card img {
    max-width: 90%;
    max-height: 90%;
  }

  .tier-header {
    margin-bottom: var(--space-6);
  }

  .sponsor-tier {
    margin-bottom: var(--space-8);
  }
}

/* Very small phones */
@media (max-width: 374.98px) {
  .sponsor-grid,
  .sponsor-grid-platinum,
  .sponsor-grid-gold,
  .sponsor-grid-silver,
  .sponsor-grid-bronze {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .sponsor-card {
    min-height: 150px;
    aspect-ratio: 16/10;
  }
}