/* Scholafit Brand Modern Theme */
:root {
  --aiqs-primary: #0077ff;
  --aiqs-accent: #ff7700;
  --aiqs-success: #1cc88a;
  --aiqs-danger: #e74a3b;
  --aiqs-bg: #fff;
  --aiqs-bg-alt: #f8f9fc;
  --aiqs-grey: #e3e6f0;
  --aiqs-grey-dark: #6c757d;
  --aiqs-black: #111;
  --aiqs-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

/* Common elements */
.aiqs-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  background: var(--aiqs-bg-alt);
}

.aiqs-section {
  margin-bottom: 30px;
  background: var(--aiqs-bg);
  border-radius: 16px;
  box-shadow: var(--aiqs-shadow);
  padding: 32px 24px;
  transition: box-shadow 0.2s;
}

.aiqs-section:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}

.aiqs-heading {
  font-size: 2rem;
  margin-bottom: 18px;
  color: var(--aiqs-black);
  border-bottom: 2px solid var(--aiqs-grey);
  padding-bottom: 12px;
  font-weight: 700;
}

.aiqs-subheading {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--aiqs-grey-dark);
  font-weight: 500;
}

.aiqs-button {
  display: inline-block;
  background: linear-gradient(90deg, var(--aiqs-primary) 70%, var(--aiqs-accent) 100%);
  color: #fff;
  padding: 14px 28px;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  font-size: 1rem;
  border: none;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(0,119,255,0.08);
  transition: background 0.2s, box-shadow 0.2s, transform 0.1s;
}

.aiqs-button:hover, .aiqs-button:focus {
  background: linear-gradient(90deg, var(--aiqs-accent) 0%, var(--aiqs-primary) 100%);
  box-shadow: 0 4px 16px rgba(0,119,255,0.16);
  transform: translateY(-2px) scale(1.03);
  outline: none;
}

.aiqs-button.secondary {
  background: var(--aiqs-grey-dark);
  color: #fff;
}
.aiqs-button.secondary:hover, .aiqs-button.secondary:focus {
  background: var(--aiqs-accent);
  color: #fff;
}

.aiqs-button.success {
  background: var(--aiqs-success);
}
.aiqs-button.success:hover {
  background: #169b6b;
}

.aiqs-button.danger {
  background: var(--aiqs-danger);
}
.aiqs-button.danger:hover {
  background: #d52a1a;
}

.aiqs-loading {
  text-align: center;
  padding: 20px;
}

.aiqs-error {
  color: var(--aiqs-danger);
  padding: 10px;
  background-color: rgba(231, 74, 59, 0.08);
  border-radius: 6px;
  margin-bottom: 15px;
}

.aiqs-success {
  color: var(--aiqs-success);
  padding: 10px;
  background-color: rgba(28, 200, 138, 0.08);
  border-radius: 6px;
  margin-bottom: 15px;
}

.aiqs-login-required {
  text-align: center;
  padding: 30px;
  background-color: var(--aiqs-bg-alt);
  border-radius: 12px;
  margin: 20px 0;
}

/* Quiz Selection UI */
.aiqs-exam-select, .aiqs-subjects-select {
  margin-bottom: 20px;
}

.aiqs-select {
  width: 100%;
  padding: 12px 16px;
  border-radius: 8px;
  border: 1.5px solid var(--aiqs-grey);
  font-size: 1rem;
  background: #fff;
  color: var(--aiqs-black);
  margin-top: 8px;
  margin-bottom: 8px;
  transition: border 0.2s;
}
.aiqs-select:focus {
  border: 1.5px solid var(--aiqs-primary);
  outline: none;
}

.aiqs-subject-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 15px;
}

.aiqs-subject-item {
  background: var(--aiqs-bg-alt);
  border: 2px solid var(--aiqs-grey);
  border-radius: 8px;
  padding: 12px 18px;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
}
.aiqs-subject-item:hover, .aiqs-subject-item.selected {
  background: var(--aiqs-primary);
  color: #fff;
  border-color: var(--aiqs-primary);
}

/* Modern subject selection box */
.aiqs-subjects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin: 20px 0;
}
.aiqs-subject-option {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: var(--aiqs-bg);
  border: 2px solid var(--aiqs-grey);
  border-radius: 12px;
  padding: 18px 20px 16px 48px;
  position: relative;
  cursor: pointer;
  transition: box-shadow 0.2s, border 0.2s, background 0.2s;
  font-size: 1rem;
  font-weight: 500;
  min-height: 70px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.aiqs-subject-option .aiqs-subject-checkmark {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%) scale(0.7);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #f3f6fa;
  border: 2px solid var(--aiqs-grey);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, border 0.2s;
}
.aiqs-subject-option.selected {
  border: 2.5px solid var(--aiqs-primary);
  background: #f0f7ff;
  box-shadow: 0 4px 16px rgba(0,119,255,0.08);
}
.aiqs-subject-option.selected .aiqs-subject-checkmark {
  background: var(--aiqs-primary);
  border-color: var(--aiqs-primary);
}
.aiqs-subject-option .aiqs-subject-checkmark:after {
  content: '';
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: transparent;
  transition: background 0.2s;
}
.aiqs-subject-option.selected .aiqs-subject-checkmark:after {
  background: #fff;
  box-shadow: 0 0 0 2px var(--aiqs-primary);
}
.aiqs-subject-name {
  font-size: 1.08rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--aiqs-black);
}
.aiqs-subject-description {
  font-size: 0.97rem;
  color: var(--aiqs-grey-dark);
  margin-top: 2px;
}

/* Quiz Interface */
.aiqs-quiz-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--aiqs-grey);
}

.aiqs-quiz-progress {
  flex: 1;
  margin-left: 24px;
}
.aiqs-progress-bar {
  width: 100%;
  height: 10px;
  background: var(--aiqs-grey);
  border-radius: 6px;
  overflow: hidden;
  margin-top: 6px;
}
.aiqs-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--aiqs-primary) 70%, var(--aiqs-accent) 100%);
  border-radius: 6px;
  transition: width 0.4s cubic-bezier(.4,2,.6,1);
}

.aiqs-timer {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--aiqs-primary);
  padding: 10px 18px;
  border-radius: 8px;
  background: var(--aiqs-bg-alt);
  border: 2px solid var(--aiqs-grey);
  margin-left: 18px;
  transition: border 0.2s, color 0.2s;
}
.aiqs-timer.warning {
  color: var(--aiqs-accent);
  border-color: var(--aiqs-accent);
  background: #fff7f0;
}
.aiqs-timer.danger {
  color: var(--aiqs-danger);
  border-color: var(--aiqs-danger);
  background: #fff0f0;
  animation: pulse-timer 1s infinite;
}
@keyframes pulse-timer {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.aiqs-question {
  margin-bottom: 30px;
}

.aiqs-question-text {
  font-size: 1.2rem;
  line-height: 1.7;
  margin-bottom: 20px;
  color: var(--aiqs-black);
}

.aiqs-question-image {
  max-width: 100%;
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.aiqs-options {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.aiqs-option {
  padding: 18px;
  border-radius: 8px;
  background: var(--aiqs-bg-alt);
  cursor: pointer;
  transition: all 0.2s;
  border: 2px solid var(--aiqs-grey);
  font-size: 1rem;
  font-weight: 500;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.aiqs-option:hover {
  background: #eaf4ff;
  border-color: var(--aiqs-primary);
}
.aiqs-option.selected {
  background: var(--aiqs-primary);
  color: #fff;
  border-color: var(--aiqs-primary);
  transform: scale(1.03);
}
.aiqs-option.correct {
  background: var(--aiqs-success);
  color: #fff;
  border-color: var(--aiqs-success);
}
.aiqs-option.incorrect {
  background: var(--aiqs-danger);
  color: #fff;
  border-color: var(--aiqs-danger);
}

.aiqs-explanation {
  margin-top: 20px;
  padding: 18px;
  background: #f4f8fd;
  border-left: 5px solid var(--aiqs-primary);
  border-radius: 0 8px 8px 0;
  color: var(--aiqs-black);
  font-size: 1rem;
}

.aiqs-quiz-actions {
  display: flex;
  justify-content: space-between;
  margin-top: 32px;
  gap: 12px;
}

/* Results */
.aiqs-quiz-results {
  text-align: center;
  padding: 32px 0;
}

.aiqs-score-circle {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 24px auto;
  border: 8px solid var(--aiqs-grey);
  position: relative;
  background: #f4f8fd;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.aiqs-score-circle.passed {
  border-color: var(--aiqs-success);
  background: linear-gradient(135deg, #f0fff4, #c6f6d5);
}
.aiqs-score-circle.failed {
  border-color: var(--aiqs-danger);
  background: linear-gradient(135deg, #fed7d7, #feb2b2);
}
.aiqs-score-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--aiqs-black);
}
.aiqs-score-status {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--aiqs-grey-dark);
}

.aiqs-results-summary {
  margin: 32px 0 18px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}
.aiqs-result-item {
  display: flex;
  gap: 12px;
  font-size: 1.1rem;
  color: var(--aiqs-black);
}

.aiqs-results-actions {
  margin-top: 24px;
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* Performance Tracking */
.aiqs-performance-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.aiqs-performance-card {
  flex: 1 1 320px;
  background: var(--aiqs-bg);
  border-radius: 16px;
  box-shadow: var(--aiqs-shadow);
  padding: 28px 20px;
  margin-bottom: 20px;
  border-top: 4px solid var(--aiqs-primary);
  transition: box-shadow 0.2s, border-color 0.2s;
}
.aiqs-performance-card:hover {
  box-shadow: 0 8px 32px rgba(0,119,255,0.10);
  border-top: 4px solid var(--aiqs-accent);
}

.aiqs-performance-subject {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--aiqs-primary);
}

.aiqs-performance-exam {
  font-size: 1rem;
  color: var(--aiqs-grey-dark);
  margin-bottom: 15px;
}

.aiqs-performance-stats {
  display: flex;
  justify-content: space-between;
  margin-bottom: 15px;
  gap: 10px;
}

.aiqs-performance-stat {
  text-align: center;
}

.aiqs-performance-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--aiqs-black);
}

.aiqs-performance-stat-label {
  font-size: 0.9rem;
  color: var(--aiqs-grey-dark);
}

.aiqs-performance-progress {
  height: 10px;
  background: var(--aiqs-grey);
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 15px;
}

.aiqs-performance-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--aiqs-primary) 70%, var(--aiqs-accent) 100%);
  border-radius: 6px;
  transition: width 0.4s cubic-bezier(.4,2,.6,1);
}

.aiqs-performance-feedback {
  margin-top: 15px;
  background: #f4f8fd;
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--aiqs-black);
  font-size: 1rem;
}

.aiqs-performance-feedback-title {
  font-weight: 700;
  margin-bottom: 5px;
  color: var(--aiqs-accent);
}

.aiqs-performance-feedback-content {
  color: var(--aiqs-grey-dark);
  font-size: 1rem;
}

.aiqs-attempts-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  background: var(--aiqs-bg);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.aiqs-attempts-table th, .aiqs-attempts-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1.5px solid var(--aiqs-grey);
}

.aiqs-attempts-table th {
  background: var(--aiqs-bg-alt);
  font-weight: 700;
  color: var(--aiqs-black);
}

.aiqs-attempts-table tr:hover {
  background: #f4f8fd;
}

/* Chatbot */
.aiqs-chatbot {
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(0,119,255,0.10);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 500px;
  background: var(--aiqs-bg);
  border: 2px solid var(--aiqs-primary);
}

.aiqs-chatbot-header {
  background: linear-gradient(90deg, var(--aiqs-primary) 70%, var(--aiqs-accent) 100%);
  color: #fff;
  padding: 18px 20px;
  display: flex;
  align-items: center;
}

.aiqs-chatbot-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 14px;
  box-shadow: 0 2px 8px rgba(0,119,255,0.08);
}

.aiqs-chatbot-title {
  font-weight: 700;
  font-size: 1.2rem;
}

.aiqs-chatbot-messages {
  flex-grow: 1;
  overflow-y: auto;
  padding: 18px 20px;
  background: #f4f8fd;
  display: flex;
  flex-direction: column;
}

.aiqs-message {
  max-width: 80%;
  padding: 14px 20px;
  border-radius: 22px;
  margin-bottom: 12px;
  line-height: 1.6;
  font-size: 1rem;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  word-break: break-word;
}

.aiqs-message-user {
  align-self: flex-end;
  background: linear-gradient(90deg, var(--aiqs-primary) 70%, var(--aiqs-accent) 100%);
  color: #fff;
  border-bottom-right-radius: 8px;
}

.aiqs-message-bot {
  align-self: flex-start;
  background: #fff;
  border: 2px solid var(--aiqs-grey);
  border-bottom-left-radius: 8px;
  color: var(--aiqs-black);
}

.aiqs-chatbot-input {
  display: flex;
  padding: 18px 20px;
  background: var(--aiqs-bg);
  border-top: 2px solid var(--aiqs-grey);
}

.aiqs-chatbot-input input {
  flex-grow: 1;
  padding: 12px 18px;
  border: 2px solid var(--aiqs-grey);
  border-radius: 24px;
  outline: none;
  font-size: 1rem;
  transition: border 0.2s;
}
.aiqs-chatbot-input input:focus {
  border: 2px solid var(--aiqs-primary);
}

.aiqs-chatbot-input button {
  background: linear-gradient(90deg, var(--aiqs-primary) 70%, var(--aiqs-accent) 100%);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  margin-left: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: background 0.2s, transform 0.1s;
}
.aiqs-chatbot-input button:hover, .aiqs-chatbot-input button:focus {
  background: linear-gradient(90deg, var(--aiqs-accent) 0%, var(--aiqs-primary) 100%);
  transform: scale(1.08);
  outline: none;
}

/* Alerts & Feedback */
.aiqs-message-alert {
  padding: 14px 20px;
  margin: 12px 0;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.aiqs-message-alert.aiqs-error {
  background: #fff0f0;
  color: var(--aiqs-danger);
  border: 2px solid #feb2b2;
}
.aiqs-message-alert.aiqs-success {
  background: #f0fff4;
  color: var(--aiqs-success);
  border: 2px solid #9ae6b4;
}
.aiqs-message-alert.aiqs-info {
  background: #eaf4ff;
  color: var(--aiqs-primary);
  border: 2px solid var(--aiqs-primary);
}

/* Spinner/Loading indicator for next question */
.aiqs-question-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  padding: 32px 0;
}
.aiqs-spinner {
  width: 48px;
  height: 48px;
  border: 5px solid #e3e6f0;
  border-top: 5px solid #0077ff;
  border-radius: 50%;
  animation: aiqs-spin 1s linear infinite;
  margin-bottom: 18px;
}
@keyframes aiqs-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
.aiqs-loading-text {
  font-size: 1.1rem;
  color: #0077ff;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* Responsive Design */
@media (max-width: 900px) {
  .aiqs-section, .aiqs-performance-card {
    padding: 18px 8px;
  }
  .aiqs-quiz-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .aiqs-quiz-actions {
    flex-direction: column;
    gap: 10px;
  }
  .aiqs-button {
    width: 100%;
    text-align: center;
  }
  .aiqs-performance-container {
    flex-direction: column;
  }
  .aiqs-performance-card {
    flex: 1 1 100%;
  }
  .aiqs-chatbot {
    height: 400px;
  }
}
@media (max-width: 600px) {
  .aiqs-container {
    padding: 8px;
  }
  .aiqs-section {
    padding: 10px 2px;
  }
  .aiqs-quiz-header {
    flex-direction: column;
    text-align: center;
  }
  .aiqs-score-circle {
    width: 100px;
    height: 100px;
  }
  .aiqs-score-value {
    font-size: 1.2rem;
  }
  .aiqs-chatbot {
    height: 320px;
  }
}

/* Microinteractions */
.aiqs-option, .aiqs-button, .aiqs-chatbot-input button {
  transition: background 0.2s, color 0.2s, border 0.2s, box-shadow 0.2s, transform 0.1s;
}
.aiqs-option:active, .aiqs-button:active, .aiqs-chatbot-input button:active {
  transform: scale(0.97);
}

.aiqs-typing-indicator {
  font-style: italic;
  opacity: 0.7;
  animation: pulse 1.5s infinite;
  color: var(--aiqs-accent);
}