:root {
  --primary: #1a4b8c;
  --secondary: #d4af37;
  --light: #f8f9fa;
  --dark: #343a40;
  --success: #28a745;
  --patagonia-blue: #2a6fb5;
  --patagonia-green: #2e8b57;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: linear-gradient(135deg, #1a4b8c 0%, #2a6fb5 100%);
  color: white;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Header */
.header {
  text-align: center;
  margin: 20px 0 40px;
}

.main-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 30px;
}

.logo-combined {
  background: white;
  border-radius: 15px;
  padding: 25px;
  margin-bottom: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  max-width: 400px;
  width: 100%;
}

.university-name {
  color: var(--primary);
  font-weight: 700;
  font-size: 1.2rem;
  margin-bottom: 15px;
  text-align: center;
  line-height: 1.3;
}

.choir-name {
  color: var(--patagonia-green);
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 5px;
  text-align: center;
}

.choir-subtitle {
  color: var(--dark);
  font-size: 1.2rem;
  text-align: center;
  font-weight: 600;
}

.header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

.header p {
  font-size: 1.3rem;
  opacity: 0.9;
}

/* Ensayos Section */
.rehearsal-section {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 30px;
  margin-bottom: 30px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  margin-bottom: 25px;
  font-size: 1.8rem;
}

.section-title i {
  color: var(--secondary);
  font-size: 2rem;
}

.rehearsal-details {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 25px;
}

.detail-card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 15px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.3s ease;
}

.detail-card:hover {
  transform: translateY(-5px);
}

.detail-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
  color: var(--secondary);
}

.detail-title {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--secondary);
  font-weight: 600;
}

.detail-info {
  font-size: 1.4rem;
  font-weight: 700;
}

.free-badge {
  background: var(--success);
  color: white;
  padding: 8px 20px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1.1rem;
  display: inline-block;
  margin-top: 10px;
  box-shadow: 0 4px 10px rgba(40, 167, 69, 0.4);
}

/* Main Content */
.main-content {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 30px;
  margin-bottom: 30px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);

}

.info-card {
  margin-bottom: 25px;

}

.info-card:last-child {
  margin-bottom: 0;
}

.info-card h3 {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 15px;
  font-size: 1.4rem;
}

.info-card h3 i {
  color: var(--secondary);
}

.info-card p {
  margin-bottom: 10px;
  line-height: 1.5;
  font-size: 1.1rem;
}

.highlight {
  color: var(--secondary);
  font-weight: 700;
}

.highlight-center {
  color: var(--secondary);
  font-weight: 700;
  text-align: center;
  align-items: center;
}

.benefits {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 15px;
}

.benefit {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
}

.benefit i {
  color: var(--success);
}

/* CTA Section */
.cta-section {
  text-align: center;
  margin: 25px 0;
}

.cta-title {
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.whatsapp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: #25D366;
  color: white;
  text-decoration: none;
  padding: 18px 35px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1.3rem;
  transition: all 0.3s ease;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
  margin-bottom: 15px;
  width: 100%;
  max-width: 320px;
}

.whatsapp-btn:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.7);
}

.whatsapp-btn i {
  font-size: 1.8rem;
}

.cta-note {
  font-size: 1rem;
  opacity: 0.9;
  margin-top: 10px;
}

/* Social Media */
.social-section {
  text-align: center;
  margin: 20px 0;
}

.social-title {
  font-size: 1.2rem;
  margin-bottom: 20px;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 55px;
  height: 55px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  color: white;
  font-size: 1.5rem;
  transition: all 0.3s ease;
}

.social-link:hover {
  background: var(--secondary);
  transform: translateY(-5px);
}

/* Footer */
.footer {
  text-align: center;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 1rem;
  opacity: 0.9;
}

/* Responsive */
@media (max-width: 600px) {
  .container {
      padding: 15px;
  }
  
  .header h1 {
      font-size: 2rem;
  }
  
  .header p {
      font-size: 1.1rem;
  }
  
  .choir-name {
      font-size: 2rem;
  }
  
  .choir-subtitle {
      font-size: 1rem;
  }
  
  .rehearsal-details {
      grid-template-columns: 1fr;
  }
  
  .benefits {
      grid-template-columns: 1fr;
  }
  
  .section-title {
      font-size: 1.5rem;
  }
}

@media (min-width: 768px) {
  .rehearsal-details {
      grid-template-columns: repeat(3, 1fr);
  }
}