* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto',
    'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans',
    'Helvetica Neue', sans-serif;
  line-height: 1.6;
  color: #fff;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Hero Section */
.hero {
  background: linear-gradient(
    180deg,
    #ff006e 0%,
    #ff4d94 20%,
    #ff6b35 40%,
    #f7931e 60%,
    #ffd60a 100%
  );
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 4rem 0;
}

.logo-section {
  text-align: center;
  margin-bottom: 3rem;
}

.logo-placeholder {
  margin-bottom: 0.75rem;
}

.main-logo {
  max-width: 500px;
  width: 100%;
  height: auto;
  filter: brightness(0) invert(1) drop-shadow(3px 3px 6px rgba(0, 0, 0, 0.3));
}

.logo-text {
  font-size: 4rem;
  font-weight: 900;
  letter-spacing: -2px;
  line-height: 0.9;
  text-transform: uppercase;
  text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.3);
}

.tagline {
  font-size: 1.5rem;
  font-weight: 300;
  font-style: italic;
  opacity: 0.95;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
}

.event-info-card {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 16px;
  padding: 3rem;
  max-width: 800px;
  margin: 0 auto;
  color: #1a1a1a;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.card-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: #ff006e;
  margin-bottom: 1.5rem;
}

.date-time {
  font-size: 1.1rem;
  font-weight: 600;
  color: #f7931e;
  margin-bottom: 0.25rem;
}

.description {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #333;
}

/* Sponsors Section */
.sponsors-section {
  background: #1a1a1a;
  padding: 4rem 0;
}

.sponsors-section h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 3rem;
  color: #fff;
}

.sponsors-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(4, 1fr);
}

/* Commented out - no longer using large sponsor cards
.sponsors-grid:first-of-type {
  grid-template-columns: repeat(2, 1fr);
}
*/

.sponsors-small {
  grid-template-columns: repeat(4, 1fr);
}

.sponsor-card {
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 3rem 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: all 0.3s ease;
}

.sponsor-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #ff006e;
  transform: translateY(-4px);
}

.sponsor-large {
  padding: 4rem 3rem;
}

.sponsor-logo {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
}

.sponsor-logo-img {
  max-width: 100%;
  max-height: 80px;
  width: auto;
  height: auto;
  filter: brightness(0) invert(1);
  opacity: 0.7;
  transition: all 0.3s ease;
}

.sponsor-card:hover .sponsor-logo-img {
  opacity: 1;
  filter: brightness(0) invert(1);
}

/* Program Section */
.program-section {
  background: linear-gradient(
    180deg,
    #1a1a1a 0%,
    #2a1a2a 50%,
    #1a1a1a 100%
  );
  padding: 4rem 0;
}

.program-section h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 3rem;
  color: #fff;
}

.program-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.program-block {
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 109, 53, 0.3);
  border-radius: 12px;
  padding: 2.5rem;
  transition: all 0.3s ease;
}

.program-block:hover {
  background: rgba(255, 109, 53, 0.1);
  border-color: #ff6b35;
  transform: translateY(-4px);
}

.program-block h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #ff6b35;
}

.program-block p {
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
}

.program-block ul {
  list-style: none;
  padding: 0;
}

.program-block li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: rgba(255, 255, 255, 0.9);
}

.program-block li:before {
  content: '→';
  position: absolute;
  left: 0;
  color: #ff6b35;
  font-weight: bold;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(
    135deg,
    #ff006e 0%,
    #ff4d94 50%,
    #ff6b35 100%
  );
  padding: 5rem 0;
  text-align: center;
}

.cta-content h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.cta-content p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0.95;
}

.cta-button {
  display: inline-block;
  padding: 1.2rem 3rem;
  background: #1a1a1a;
  color: #fff;
  text-decoration: none;
  border-radius: 50px;
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.cta-button:hover {
  background: #000;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
}

/* Footer */
footer {
  background: #0a0a0a;
  padding: 2rem 0;
  text-align: center;
}

footer p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.5);
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }

  .main-logo {
    max-width: 300px;
  }

  .logo-text {
    font-size: 2.5rem;
  }

  .tagline {
    font-size: 1.1rem;
  }

  .event-info-card {
    padding: 2rem;
  }

  .card-header h2 {
    font-size: 2rem;
  }

  .date-time {
    font-size: 1rem;
  }

  .description {
    font-size: 1rem;
  }

  .sponsors-grid,
  .sponsors-small {
    grid-template-columns: 1fr;
  }

  .program-grid {
    grid-template-columns: 1fr;
  }

  .cta-content h2 {
    font-size: 2rem;
  }

  .cta-content p {
    font-size: 1rem;
  }

  .cta-button {
    padding: 1rem 2rem;
    font-size: 1rem;
  }
}