/* ============================================
   Test Taking Page Styles
   ============================================ */

/* ====== Test Intro ====== */
.test-intro {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.test-intro .content {
  margin-bottom: var(--space-8);
}

.test-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.test-info-item {
  text-align: center;
  padding: var(--space-4);
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  animation: fade-in-up 0.5s ease both;
}

.test-info-item:nth-child(1) { animation-delay: 0.1s; }
.test-info-item:nth-child(2) { animation-delay: 0.2s; }
.test-info-item:nth-child(3) { animation-delay: 0.3s; }

.test-info-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-1);
}

.test-info-value {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
}

.test-disclaimer {
  padding: var(--space-4);
  background: var(--color-warning);
  background: color-mix(in srgb, var(--color-warning) 10%, transparent);
  border-left: 4px solid var(--color-warning);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-8);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* ====== Test Taking ====== */
.test-taking {
  display: none;
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.test-taking.is-active {
  display: block;
  animation: fade-in-up 0.4s ease both;
}

/* Progress bar */
.progress-container {
  margin-bottom: var(--space-8);
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-2);
}

.progress-text {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
}

.progress-bar-track {
  width: 100%;
  height: 8px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
  width: 0%;
}

/* Question */
.question-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  margin-bottom: var(--space-6);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

/* Fade transition when switching questions */
.question-container.is-transitioning {
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
}

.question-number {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.question-text {
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: var(--space-6);
}

/* Options */
.options-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.option-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
  animation: fade-in-up 0.35s ease both;
}

.option-item:nth-child(1) { animation-delay: 0.05s; }
.option-item:nth-child(2) { animation-delay: 0.10s; }
.option-item:nth-child(3) { animation-delay: 0.15s; }
.option-item:nth-child(4) { animation-delay: 0.20s; }
.option-item:nth-child(5) { animation-delay: 0.25s; }
.option-item:nth-child(6) { animation-delay: 0.30s; }
.option-item:nth-child(7) { animation-delay: 0.35s; }

.option-item:hover {
  border-color: var(--color-primary-light);
  background: var(--color-primary-bg);
}

.option-item:active {
  transform: scale(0.98);
}

.option-item:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.option-item.is-selected {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
}

.option-item.is-selected .option-label {
  color: var(--color-primary);
  font-weight: 600;
}

.option-radio {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.option-item.is-selected .option-radio {
  border-color: var(--color-primary);
  background: var(--color-primary);
}

.option-radio::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: white;
  transform: scale(0);
  transition: transform var(--transition-fast);
}

.option-item.is-selected .option-radio::after {
  transform: scale(1);
}

.option-label {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
  transition: color var(--transition-fast), font-weight var(--transition-fast);
}

/* Navigation buttons */
.question-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}

.question-nav .btn {
  min-width: 120px;
}

.question-counter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 80px;
  padding: var(--space-1) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-bg);
  border: 1px solid var(--color-primary-lighter);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

/* ====== Test Results ====== */
.test-results {
  display: none;
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.test-results.is-active {
  display: block;
  animation: fade-in-up 0.4s ease 0.1s both;
}

.result-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.result-score {
  font-size: var(--text-5xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
  animation: score-pop-in 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.3s both;
}

@keyframes score-pop-in {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  60% {
    opacity: 1;
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

.result-label {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.result-description {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

.result-breakdown {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.result-dimension {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  transition: all var(--transition-base);
}

.result-dimension:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.dimension-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
}

.dimension-name {
  font-weight: 700;
  font-size: var(--text-base);
}

.dimension-score {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
}

.dimension-bar-track {
  width: 100%;
  height: 6px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-2);
}

.dimension-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-full);
  transition: width 1s ease;
}

.dimension-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ====== Result Dimension Staggered Entrance ====== */
.result-breakdown > .result-dimension {
  animation: fade-in-up 0.5s ease both;
}

.result-breakdown > .result-dimension:nth-child(1) { animation-delay: 0.05s; }
.result-breakdown > .result-dimension:nth-child(2) { animation-delay: 0.15s; }
.result-breakdown > .result-dimension:nth-child(3) { animation-delay: 0.25s; }
.result-breakdown > .result-dimension:nth-child(4) { animation-delay: 0.35s; }
.result-breakdown > .result-dimension:nth-child(5) { animation-delay: 0.45s; }

.result-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-top: var(--space-8);
}

/* ====== Skeleton Loading ====== */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.skeleton {
  background: linear-gradient(90deg, var(--color-bg-alt) 25%, var(--color-border) 50%, var(--color-bg-alt) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 1em;
  margin-bottom: var(--space-2);
  width: 100%;
}

.skeleton-text-short {
  width: 60%;
}

.skeleton-block {
  height: 80px;
  width: 100%;
}

/* Skeleton result dimension (matches .result-dimension layout) */
.skeleton-dimension {
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.skeleton-dimension .skeleton-text {
  height: 1.2em;
  width: 40%;
  margin-bottom: var(--space-3);
}

.skeleton-dimension .skeleton-block {
  height: 6px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-2);
}

.skeleton-dimension .skeleton-text:last-child {
  width: 80%;
  height: 0.9em;
}

/* ====== Utility ====== */
.text-center {
  text-align: center;
}
.mt-8 {
  margin-top: var(--space-8);
}

/* ====== Responsive ====== */
@media (max-width: 767px) {
  .test-info-grid {
    grid-template-columns: 1fr;
  }

  .question-container {
    padding: var(--space-5);
  }

  .question-text {
    font-size: var(--text-lg);
  }

  .question-nav {
    flex-direction: column;
  }

  .question-nav .btn {
    width: 100%;
    min-width: unset;
  }

  .question-counter {
    order: -1;
  }

  .result-score {
    font-size: var(--text-4xl);
  }

  .result-actions {
    flex-direction: column;
    align-items: center;
  }

  .result-actions .btn {
    width: 100%;
    max-width: 320px;
  }
}

/* Question validation animations */
.require-answer {
  animation: shake-require 0.5s ease-in-out;
}
.require-answer .option-item {
  border-color: #ef4444 !important;
}
.too-fast {
  animation: shake-require 0.4s ease-in-out;
}
.too-fast .option-item {
  border-color: #f59e0b !important;
}
@keyframes shake-require {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}