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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.1);
}

.header {
  background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
  color: white;
  padding: 2rem 0;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-content {
  padding: 0 2rem;
}

.title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.subtitle {
  font-size: 1.2rem;
  font-weight: 300;
  opacity: 0.9;
  letter-spacing: 1px;
}

.main-content {
  flex: 1;
  padding: 2rem;
}

.controls-section {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  margin-bottom: 2rem;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.control-group {
  display: flex;
  flex-direction: column;
  min-width: 200px;
}

.control-label {
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: #2c3e50;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.control-select {
  padding: 0.75rem 1rem;
  border: 2px solid #e0e6ed;
  border-radius: 8px;
  font-size: 1rem;
  background: white;
  color: #333;
  transition: all 0.3s ease;
  cursor: pointer;
}

.control-select:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.control-select:disabled {
  background: #f8f9fa;
  color: #6c757d;
  cursor: not-allowed;
  opacity: 0.7;
}

.control-select:hover:not(:disabled) {
  border-color: #667eea;
}

.message {
  text-align: center;
  font-size: 1.3rem;
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-radius: 8px;
  border-left: 4px solid #667eea;
}

.routine-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.period-card {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  border-left: 4px solid #667eea;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.period-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #667eea, #764ba2);
}

.period-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.period-card.break {
  background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
  border-left-color: #f39c12;
}

.period-card.break::before {
  background: linear-gradient(90deg, #f39c12, #e67e22);
}

.period-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.period-card h3::before {
  content: '🕐';
  font-size: 1.2rem;
}

.period-card.break h3::before {
  content: '☕';
}

.period-card p {
  font-size: 1rem;
  color: #555;
  font-weight: 500;
  line-height: 1.4;
}

.footer {
  background: #2c3e50;
  color: white;
  text-align: center;
  padding: 1.5rem;
  margin-top: auto;
}

.footer p {
  font-size: 0.9rem;
  opacity: 0.8;
  font-style: italic;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    margin: 0;
    border-radius: 0;
  }
  
  .title {
    font-size: 2rem;
  }
  
  .subtitle {
    font-size: 1rem;
  }
  
  .controls-section {
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem;
  }
  
  .control-group {
    min-width: auto;
  }
  
  .main-content {
    padding: 1rem;
  }
  
  .routine-container {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .period-card {
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  .header {
    padding: 1.5rem 0;
  }
  
  .title {
    font-size: 1.8rem;
  }
  
  .controls-section {
    padding: 1rem;
  }
  
  .control-select {
    padding: 0.6rem 0.8rem;
    font-size: 0.9rem;
  }
}

/* Loading animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid #f3f3f3;
  border-top: 3px solid #667eea;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-left: 10px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Smooth transitions */
* {
  transition: all 0.2s ease;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: #667eea;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #5a6fd8;
}

/* Lab Details Section */
.lab-details-section {
  background: white;
  border-radius: 12px;
  padding: 2rem;
  margin-top: 2rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  animation: fadeIn 0.5s ease-in-out;
}

.lab-details-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: #2c3e50;
  text-align: center;
  margin-bottom: 2rem;
  position: relative;
}

.lab-details-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, #667eea, #764ba2);
  border-radius: 2px;
}

.lab-details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.lab-detail-card {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-radius: 10px;
  padding: 1.5rem;
  border-left: 4px solid #667eea;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.lab-detail-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #667eea, #764ba2);
}

.lab-detail-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.lab-detail-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #667eea;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lab-detail-card h3::before {
  content: '🔬';
  font-size: 1.2rem;
}

.lab-full-name {
  font-size: 1rem;
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.lab-room {
  font-size: 0.9rem;
  color: #6c757d;
  font-weight: 500;
  background: rgba(102, 126, 234, 0.1);
  padding: 0.3rem 0.8rem;
  border-radius: 15px;
  display: inline-block;
}

.lab-toggle-container {
  text-align: center;
  margin-top: 2rem;
}

.show-lab-btn, .toggle-lab-btn {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  padding: 0.8rem 2rem;
  border-radius: 25px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.show-lab-btn:hover, .toggle-lab-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.toggle-lab-btn {
  background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
  box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

.toggle-lab-btn:hover {
  box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile responsiveness for lab details */
@media (max-width: 768px) {
  .lab-details-section {
    padding: 1.5rem;
    margin-top: 1.5rem;
  }
  
  .lab-details-title {
    font-size: 1.5rem;
  }
  
  .lab-details-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .lab-detail-card {
    padding: 1rem;
  }
  
  .show-lab-btn, .toggle-lab-btn {
    padding: 0.7rem 1.5rem;
    font-size: 0.9rem;
  }
}