/* Sponsor Section - Premium styling for potential sponsors */

.sponsor-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 3vw 3rem;
  position: relative;
  z-index: 10;
}

.sponsor-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  max-width: 600px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0.4;
}

.sponsor-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.sponsor-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--primary);
  margin-bottom: 0.75rem;
  display: block;
}

.sponsor-title {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.75rem;
  text-shadow: 0 4px 30px var(--primary-glow);
}

.sponsor-subtitle {
  font-family: var(--font-sans);
  font-size: clamp(0.9rem, 1.1vw, 1rem);
  color: rgba(255, 255, 255, 0.75);
  max-width: 650px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Benefits Grid */
.sponsor-benefits {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.benefit-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.benefit-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.benefit-card:hover {
  transform: translateY(-6px);
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-md);
}

.benefit-card:hover::before {
  opacity: 1;
}

.benefit-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  display: block;
  filter: grayscale(0.2);
}

.benefit-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.benefit-description {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.5;
}

/* Sponsor Tiers */
.sponsor-tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2.5rem;
  align-items: stretch;
}

.tier-card {
  background: var(--glass-bg-solid);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1rem;
  text-align: center;
  position: relative;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.tier-card.featured {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(77, 159, 255, 0.08) 0%, var(--glass-bg-solid) 100%);
  transform: scale(1.03);
}

.tier-card.featured::before {
  content: 'MOST POPULAR';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--edge-dark);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  padding: 4px 12px;
  border-radius: 20px;
}

.tier-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.tier-card.featured:hover {
  transform: scale(1.03) translateY(-4px);
}

.tier-name {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  margin-bottom: 0.4rem;
}

.tier-price {
  font-family: var(--font-sans);
  font-size: 1.6rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.2rem;
}

.tier-price-note {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 1rem;
}

.tier-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem 0;
  text-align: left;
  flex: 1;
}

.tier-features li {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.8);
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.tier-features li:last-child {
  border-bottom: none;
}

.tier-features li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  font-size: 0.9rem;
}

.tier-cta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-normal);
  width: 100%;
  text-decoration: none;
  display: inline-block;
  text-align: center;
  margin-top: auto;
}

.tier-cta-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.tier-cta-outline:hover {
  background: rgba(77, 159, 255, 0.15);
  transform: translateY(-2px);
}

.tier-cta-filled {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-soft) 100%);
  border: none;
  color: var(--edge-dark);
  box-shadow: 0 4px 20px var(--primary-glow);
}

.tier-cta-filled:hover {
  box-shadow: 0 6px 28px var(--primary-glow);
  transform: translateY(-2px);
}

/* Sponsor CTA Section */
.sponsor-cta-container {
  text-align: center;
  padding: 2rem;
  background: linear-gradient(135deg, rgba(77, 159, 255, 0.08) 0%, rgba(125, 211, 192, 0.06) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(77, 159, 255, 0.2);
}

.sponsor-cta-text {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.sponsor-cta-btn {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--edge-dark);
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  padding: 1rem 2.5rem;
  border: none;
  border-radius: 12px;
  box-shadow: 0 6px 32px var(--primary-glow);
  cursor: pointer;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all var(--transition-normal);
  text-decoration: none;
  display: inline-block;
}

.sponsor-cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 40px var(--primary-glow);
  background: linear-gradient(135deg, #5aa5ff 0%, #8fe0d0 100%);
}

/* Past Sponsors / Social Proof */
.sponsor-proof {
  margin-top: 2rem;
  text-align: center;
}

.sponsor-proof-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 1rem;
  display: block;
}

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

  .sponsor-tiers {
    gap: 0.75rem;
  }

  .tier-card {
    padding: 1.25rem 0.85rem;
  }

  .tier-price {
    font-size: 1.4rem;
  }

  .tier-features li {
    font-size: 0.7rem;
  }
}

@media (max-width: 768px) {
  .sponsor-tiers {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }

  .tier-card.featured {
    transform: none;
    order: -1;
  }

  .tier-card.featured:hover {
    transform: translateY(-4px);
  }
}

@media (max-width: 600px) {
  .sponsor-section {
    padding: 3rem 16px 2rem;
  }

  .sponsor-benefits {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .benefit-card {
    padding: 1.25rem 1rem;
  }

  .benefit-icon {
    font-size: 1.6rem;
  }

  .benefit-title {
    font-size: 0.75rem;
  }

  .benefit-description {
    font-size: 0.75rem;
  }

  .tier-card {
    padding: 1.5rem 1.25rem;
  }
}

@media (max-width: 480px) {
  .sponsor-section {
    padding: 2.5rem 12px 1.5rem;
  }

  .sponsor-benefits {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }

  .benefit-card {
    display: flex;
    align-items: center;
    text-align: left;
    gap: 1rem;
    padding: 1rem;
  }

  .benefit-icon {
    font-size: 1.4rem;
    margin-bottom: 0;
    flex-shrink: 0;
  }

  .benefit-content {
    flex: 1;
  }

  .benefit-title {
    font-size: 0.72rem;
    margin-bottom: 0.25rem;
  }

  .benefit-description {
    font-size: 0.72rem;
  }

  .sponsor-cta-btn {
    font-size: 0.9rem;
    padding: 0.85rem 2rem;
  }
}