/* EgoTECH World Test Suite Modern Styling */
:root {
  --et-primary: #2563eb;
  --et-primary-dark: #1d4ed8;
  --et-primary-light: #eff6ff;
  --et-secondary: #0f172a;
  --et-accent: #f59e0b;
  --et-success: #10b981;
  --et-danger: #ef4444;
  --et-card-bg: #ffffff;
  --et-bg: #f8fafc;
  --et-border: #e2e8f0;
}

body {
  background-color: var(--et-bg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #1e293b;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content-wrapper {
  flex: 1 0 auto;
}

.card-mcq {
  border: 1px solid var(--et-border);
  border-radius: 1.25rem;
  background: var(--et-card-bg);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.04), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
}

.option-card {
  border: 2px solid var(--et-border);
  border-radius: 0.875rem;
  padding: 1.15rem 1.25rem;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  background: #ffffff;
  position: relative;
  overflow: hidden;
}

.option-card:hover {
  border-color: #3b82f6;
  background-color: #f0f7ff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
}

.option-card.selected {
  border-color: #2563eb;
  background-color: #eff6ff;
  box-shadow: 0 0 0 1px #2563eb;
}

.option-card.correct {
  border-color: #16a34a !important;
  background-color: #f0fdf4 !important;
  color: #166534 !important;
  box-shadow: 0 0 0 1px #16a34a !important;
}

.option-card.incorrect {
  border-color: #dc2626 !important;
  background-color: #fef2f2 !important;
  color: #991b1b !important;
  animation: shake 0.4s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  50% { transform: translateX(6px); }
  75% { transform: translateX(-4px); }
}

.option-indicator {
  width: 34px;
  height: 34px;
  min-width: 34px;
  border-radius: 50%;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #cbd5e1;
  color: #475569;
  background: #f8fafc;
  transition: all 0.2s ease;
}

.option-card:hover .option-indicator {
  border-color: #3b82f6;
  color: #2563eb;
  background: #ffffff;
}

.option-card.selected .option-indicator {
  border-color: #2563eb;
  background: #2563eb;
  color: #ffffff;
}

.option-card.correct .option-indicator {
  border-color: #16a34a;
  background: #16a34a;
  color: #ffffff;
}

.option-card.incorrect .option-indicator {
  border-color: #dc2626;
  background: #dc2626;
  color: #ffffff;
}

/* Ad Containers */
.ad-slot-wrapper {
  background: #ffffff;
  border: 1px dashed #cbd5e1;
  border-radius: 0.75rem;
  padding: 0.75rem;
  margin: 1.5rem 0;
  text-align: center;
  min-height: 100px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.ad-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #94a3b8;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

/* Internal Linking Banner */
.internal-links-box {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid #e2e8f0;
  border-radius: 1rem;
  padding: 1.25rem;
}

/* Certificate Styles */
.certificate-frame {
  background: #ffffff;
  border: 12px double #1e3a8a;
  padding: 2.5rem;
  border-radius: 1rem;
  position: relative;
  box-shadow: 0 20px 30px rgba(0, 0, 0, 0.08);
  max-width: 950px;
  margin: 0 auto;
}

.certificate-seal {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 3px solid #d97706;
  background: radial-gradient(circle, #fef3c7 0%, #fde68a 100%);
  color: #92400e;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 8px rgba(217, 119, 6, 0.2);
  margin: 0 auto;
}

@media print {
  body * {
    visibility: hidden;
  }
  .certificate-frame, .certificate-frame * {
    visibility: visible;
  }
  .certificate-frame {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    margin: 0;
    border: 8px double #1e3a8a !important;
  }
  .no-print {
    display: none !important;
  }
}