.wcq-quiz-container {
    border: 1px solid var(--black-l-9);
    padding: var(--space-m);
    border-radius: var(--border-radius-m);
    background: #ffffff;
    max-width: 72rem;
    margin: 0 auto;
    position: relative;
}

.wcq-start-screen {
    text-align: center;
}

.wcq-start-title {
    font-size: var(--text-l);
    letter-spacing: var(--space-letter-s);
    line-height: 1.2;
    color: var(--secondary);
    margin: 0;
}

.wcq-start-meta {
    background: var(--black-l-10);
    padding: var(--space-s);
    border-radius: var(--border-radius-m);
    margin-top: var(--space-m);
    margin-bottom: var(--space-m);
}

.wcq-start-meta p {
    margin: 1rem 0;
    font-size: var(--text-s);
    color: var(--black-l-1);
}

.wcq-quiz-container button {
    background: var(--primary);
    color: var(--black);
    border: none;
    font-size: var(--text-s);
    font-weight: 700;
    line-height: var(--line-height-button);
    padding: var(--text-2xs) var(--text-m);
    cursor: pointer;
    border-radius: var(--border-radius-m);
    transition: background 0.3s;
}

.wcq-quiz-container button:hover {
    background: var(--primary-d-1);
}

.wcq-quiz-container button:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.wcq-quiz-container .wcq-btn-start {
    font-size: var(--text-s);
    font-weight: 700;
    line-height: var(--line-height-button);
    padding: var(--text-2xs) var(--text-m);
    border-radius: var(--border-radius-m);
    transition: background 0.2s linear;
    width: 100%;
}

.wcq-quiz-container .wcq-btn-start:hover {
    background-color: var(--primary-d-1);
}

.wcq-quiz-container .wcq-btn-retake {
    background: transparent;
    border: 2px solid var(--black-l-6);
    color: var(--black-l-6);
    margin-top: 2rem;
}

.wcq-quiz-container .wcq-btn-retake:hover {
    background: var(--white);
    border-color: var(--black-l-2);
    color: var(--black-l-2);
}

.wcq-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--black-l-9);
    padding-bottom: 1.5rem;
}

.wcq-timer-circle {
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    background: radial-gradient(closest-side, white 79%, transparent 80% 100%),
                conic-gradient(var(--secondary-alt) var(--percent), var(--black-l-9) 0);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #333;
    font-size: 1.1em;
    transition: background 0.2s linear;
}

.wcq-timer-circle.danger {
    background: radial-gradient(closest-side, white 79%, transparent 80% 100%),
                conic-gradient(#dc3545 var(--percent), #f0f0f0 0);
    color: #dc3545;
}

.wcq-question-count {
    font-size: var(--text-xs);
    font-weight: 700;
    color: var(--black-l-3);
    background: var(--black-l-10);
    padding: .8rem 1.6rem;
    border-radius: var(--border-radius-xl);
    text-transform: uppercase;
    letter-spacing: var(--space-letter-s);
}

.wcq-step {
    display: none;
    animation: fadeIn 0.4s ease-in-out;
}

.wcq-step.active {
    display: block;
}

.wcq-question-title {
    font-size: var(--text-m);
    line-height: 1.25;
    margin-top: 0;
    margin-bottom: 2rem;
    font-weight: 700;
    color: var(--secondary);
}

.wcq-answer-option {
    margin-bottom: 1.5rem;
    cursor: pointer;
    padding: 1.2rem 2rem;
    border: 1px solid var(--black-l-9);
    border-radius: var(--border-radius-m);
    transition: all 0.2s ease;
    position: relative;
    background-color: var(--white);
}

.wcq-answer-option:hover {
    border-color: var(--secondary-alt);
    background-color: var(--secondary-alt-l-10);
}

.wcq-answer-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.wcq-answer-option:has(input[type="radio"]:checked) {
    border-color: var(--secondary-alt);
    background-color: var(--secondary-alt-l-9);
}

.wcq-letter {
    margin-right: 1rem;
    color: var(--secondary-alt);
    font-weight: 700;
}

.wcq-answer-text {
    font-size: var(--text-s);
    line-height: 1.4;
    color: var(--black);
}

.wcq-answer-option.wcq-is-correct {
    background-color: #d4edda !important;
    border-color: #28a745 !important;
    color: #155724;
}

.wcq-answer-option.wcq-is-wrong {
    background-color: #f8d7da !important;
    border-color: #dc3545 !important;
    color: #721c24;
}

.wcq-answer-option.wcq-is-correct .wcq-letter,
.wcq-answer-option.wcq-is-wrong .wcq-letter {
    color: inherit;
}

.wcq-step.locked .wcq-answer-option {
    pointer-events: none; 
}

.wcq-actions {
    margin-top: 2rem;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    min-height: 4rem;
}

.wcq-timer-msg {
    display: block;
    width: 100%;
    text-align: center;
    background-color: var(--secondary-alt-l-10);
    color: var(--black-l-1);
    padding: 1.2rem 1.5rem;
    border-radius: var(--border-radius-m);
    font-weight: 700;
    font-size: var(--text-s);
    position: relative;
    overflow: hidden;
}

.wcq-timer-msg::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    height: 0.4rem;
    background-color: var(--secondary-alt);
    width: 100%;
    animation: wcq-countdown-line 8s linear forwards; 
}

.wcq-timeout-msg {
    display: block;
    width: 100%;
    text-align: center;
    color: #721c24;
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    font-weight: 700;
    padding: 1.2rem;
    border-radius: var(--border-radius-m);
    margin-top: 2rem;
    margin-bottom: 0;
    font-size: var(--text-s);
}

.wcq-result {
    text-align: center;
    padding: 2rem 0;
}

.wcq-score-text {
    font-size: var(--text-xl);
    font-weight: bold;
    color: var(--secondary-alt);
    margin: 0.5rem 0;
}

.wcq-error-msg {
    display: block;
    width: 100%;
    color: #dc3545;
    font-weight: 700;
    font-size: var(--text-s);
    margin-top: 1rem;
}

.wcq-explanation {
    margin-top: 2rem;
    padding: 2rem 2.5rem;
    background-color: var(--black-l-10);
    color: var(--black);
    font-size: 1.8rem;
    font-style: italic;
    border-radius: var(--border-radius-m);
    animation: fadeIn 0.5s;
    line-height: 1.4;
}

.wcq-final-msg {
    font-size: var(--text-m);
    margin-bottom: 4rem;
    color: var(--black);
    line-height: 1.5;
}

.wcq-share-section {
    margin: var(--space-m) var(--space-2xs);
    padding: var(--space-m);
    background-color: var(--secondary-t-10);
    border-radius: var(--border-radius-m);
    border: 2px solid var(--primary-d-3);
}

.wcq-share-cta {
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: var(--primary-d-3);
    font-size: var(--text-m);
    letter-spacing: var(--space-letter-s);
    font-weight: 700;
    animation: wcq-pulse 2s infinite;
}

@keyframes wcq-pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes wcq-countdown-line {
    from { width: 100%; }
    to { width: 0%; }
}

/* mobile */
@media (max-width: 767px) {
  .wcq-quiz-container {
    padding: 0;
    border: none;
  }

  .wcq-start-title {
    font-size: var(--text-xl);
    margin: 0;
  }

  .wcq-start-meta {
    margin-top: var(--space-xs);
    margin-bottom: var(--space-xs);
  }

  .wcq-timer-circle {
    width: 3.5rem;
    height: 3.5rem;
    font-size: 1em;
  }

  .wcq-question-title {
    line-height: 1.2;
    margin-bottom: 1.5rem;
  }

  .wcq-letter {
    margin-right: 0.5rem;
  }

  .wcq-answer-text, .wcq-explanation,
  .wcq-timer-msg, .wcq-timeout-msg  {
    font-size: 1.6rem;
  }

  .wcq-answer-option {
    padding: 1rem 1.5rem;
    margin-bottom: 1.25rem;
  }

  .wcq-explanation {
    padding: 2rem 1.5rem;
    border: none;
  }

  .wcq-explanation, .wcq-actions {
    margin-top: 1.25rem;
  }

  .wcq-result {
    padding: 0;
  }

  .wcq-result h3{
    font-size: var(--text-xl);
  }

  .wcq-final-msg,
  .wcq-quiz-container .wcq-btn-retake {
    margin-bottom: 0;
  }

  .wcq-final-msg {
    font-size: var(--text-m);
  }

  .wcq-share-section {
    padding: var(--space-s);
    margin: var(--space-s) 0;
  }
}