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

:root {
  --primary: #4361ee;
  --primary-light: #4895ef;
  --secondary: #3a0ca3;
  --dark: #2b2d42;
  --light: #f8f9fa;
  --gray: #6c757d;
  --success: #4cc9f0;
  --border-radius: 10px;
  --shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

body {
  font-family: "Roboto", sans-serif;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  color: var(--dark);
  line-height: 1.6;
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

header {
  text-align: center;
  margin-bottom: 40px;
  padding: 20px;
  border-radius: var(--border-radius);
  background-color: white;
  box-shadow: var(--shadow);
  animation: fadeIn 1s ease;
}

h1 {
  font-family: "Poppins", sans-serif;
  color: var(--secondary);
  font-size: 2.8rem;
  margin-bottom: 10px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.subtitle {
  font-size: 1.2rem;
  color: var(--gray);
  max-width: 800px;
  margin: 0 auto;
}

.reports-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 30px;
}

.tab-btn {
  padding: 15px 25px;
  background-color: white;
  border: none;
  border-radius: 50px;
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--dark);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  display: flex;
  align-items: center;
  gap: 8px;
}

.tab-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
}

.tab-btn.active {
  background-color: var(--primary);
  color: white;
  box-shadow: 0 6px 12px rgba(67, 97, 238, 0.3);
}

.tab-btn i {
  font-size: 1.2rem;
}

.content-container {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
}

.report-content {
  flex: 1;
  min-width: 300px;
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 30px;
  animation: slideIn 0.5s ease;
  max-height: 80vh;
  overflow-y: auto;
}

.report-content h2 {
  font-family: "Poppins", sans-serif;
  color: var(--secondary);
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 2px solid #eee;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.copy-all-btn {
  background-color: var(--primary-light);
  color: white;
  border: none;
  border-radius: 5px;
  padding: 8px 15px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 5px;
}

.copy-all-btn:hover {
  background-color: var(--primary);
}

.report-section {
  margin-bottom: 30px;
  padding: 20px;
  border-radius: 8px;
  background-color: #f9f9f9;
  transition: var(--transition);
  border-left: 4px solid var(--primary-light);
}

.report-section:hover {
  background-color: #f0f4ff;
  transform: translateX(5px);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.section-title {
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  color: var(--dark);
  font-size: 1.3rem;
}

.copy-section-btn {
  background-color: transparent;
  border: 1px solid var(--primary-light);
  color: var(--primary);
  border-radius: 5px;
  padding: 5px 10px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 5px;
}

.copy-section-btn:hover {
  background-color: var(--primary-light);
  color: white;
}

.section-content {
  color: var(--dark);
  line-height: 1.7;
  white-space: pre-line;
  font-size: 1rem;
}

.section-content p {
  margin-bottom: 15px;
}

.copy-notification {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: var(--success);
  color: white;
  padding: 15px 25px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 10px;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition);
  z-index: 1000;
}

.copy-notification.show {
  transform: translateY(0);
  opacity: 1;
}

.stats-panel {
  flex-basis: 300px;
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 25px;
  animation: slideInRight 0.5s ease 0.2s both;
}

.stats-panel h3 {
  font-family: "Poppins", sans-serif;
  color: var(--secondary);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #eee;
}

.stat-item {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid #eee;
}

.stat-item:last-child {
  border-bottom: none;
}

.stat-label {
  color: var(--gray);
}

.stat-value {
  font-weight: 600;
  color: var(--primary);
}

.student-highlight {
  background-color: #f0f4ff;
  padding: 20px;
  border-radius: 8px;
  margin-top: 25px;
}

.student-highlight h4 {
  font-family: "Poppins", sans-serif;
  color: var(--secondary);
  margin-bottom: 10px;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 15px;
}

.tech-tag {
  background-color: #e9ecef;
  color: var(--dark);
  padding: 5px 10px;
  border-radius: 20px;
  font-size: 0.85rem;
}

footer {
  text-align: center;
  margin-top: 50px;
  padding: 20px;
  color: var(--gray);
  font-size: 0.9rem;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* Responsive adjustments */
@media (max-width: 1100px) {
  .content-container {
    flex-direction: column;
  }

  .stats-panel {
    flex-basis: auto;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.2rem;
  }

  .tab-btn {
    padding: 12px 20px;
    font-size: 0.9rem;
  }

  .report-content,
  .stats-panel {
    padding: 20px;
  }

  .reports-tabs {
    gap: 8px;
  }
}

.viewer {
  background: #ffffff;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 20px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.viewer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.viewer-title {
  font-weight: bold;
  font-size: 16px;
}

.buttons button {
  margin-left: 8px;
  padding: 6px 12px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
}

.show-btn {
  background-color: #007bff;
  color: #fff;
}

.download-btn {
  background-color: #28a745;
  color: #fff;
}

.content {
  display: none;
  white-space: pre-wrap;
  background: #f9fafb;
  border: 1px solid #ddd;
  padding: 12px;
  border-radius: 4px;
  margin-top: 10px;
  font-family: Consolas, monospace;
  font-size: 14px;
}