/**
 * Shared classic quiz UI – used by platform quizzes (newsfeed/take_quiz)
 * and course module quizzes (courses/quiz_take) for consistent styling.
 */
@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,600;0,8..60,700;1,8..60,400&display=swap');

:root {
    --quiz-classic-bg: #F5F3EF;
    --quiz-classic-paper: #FDFCFA;
    --quiz-classic-text: #2C2C2C;
    --quiz-classic-text-muted: #5C5C5C;
    --quiz-classic-border: #E0DDD8;
    --quiz-classic-accent: #2D5A3D;
    --quiz-classic-accent-hover: #234A30;
    --quiz-classic-secondary: #6B6B6B;
    --quiz-classic-warning: #8B6914;
    --quiz-classic-danger: #8B2E2E;
    --quiz-classic-success: #2D5A3D;
}

.quiz-classic-wrap {
    background: var(--quiz-classic-bg);
    min-height: 100vh;
    padding: 2rem 0;
}

.quiz-classic-inner {
    max-width: 720px;
    margin: 0 auto;
    background: var(--quiz-classic-paper);
    border: 1px solid var(--quiz-classic-border);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    border-radius: 2px;
    padding: 2.5rem 3rem;
}

@media (max-width: 768px) {
    .quiz-classic-inner { padding: 1.5rem 1.25rem; }
}

.quiz-classic-header {
    border-bottom: 1px solid var(--quiz-classic-border);
    padding-bottom: 1.5rem;
    margin-bottom: 2rem;
}

.quiz-classic-title {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--quiz-classic-text);
    letter-spacing: -0.02em;
    line-height: 1.35;
}

.quiz-classic-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem 2rem;
    font-size: 0.875rem;
    color: var(--quiz-classic-text-muted);
    margin-top: 1rem;
}

.quiz-classic-timer {
    background: var(--quiz-classic-bg);
    border: 1px solid var(--quiz-classic-border);
    border-radius: 2px;
    padding: 0.875rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.quiz-classic-timer.warning {
    border-color: var(--quiz-classic-danger);
    background: rgba(139, 46, 46, 0.06);
}

.quiz-classic-timer-text {
    font-size: 1.5rem;
    font-weight: 600;
    font-family: 'Source Serif 4', Georgia, serif;
    color: var(--quiz-classic-text);
    letter-spacing: 0.02em;
}

.quiz-classic-timer.warning .quiz-classic-timer-text { color: var(--quiz-classic-danger); }

.quiz-classic-progress {
    background: var(--quiz-classic-bg);
    border: 1px solid var(--quiz-classic-border);
    border-radius: 2px;
    padding: 1rem 1.25rem;
    margin-bottom: 2rem;
}

.quiz-classic-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.quiz-classic-progress-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--quiz-classic-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.quiz-classic-progress-bar {
    height: 6px;
    background: var(--quiz-classic-border);
    border-radius: 1px;
    overflow: hidden;
}

.quiz-classic-progress-fill {
    height: 100%;
    background: var(--quiz-classic-accent);
    border-radius: 1px;
    transition: width 0.3s ease;
}

.quiz-classic-question {
    background: var(--quiz-classic-paper);
    border: 1px solid var(--quiz-classic-border);
    border-radius: 2px;
    padding: 2rem 2.25rem;
    margin-bottom: 1.5rem;
}

.quiz-classic-question-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--quiz-classic-border);
}

.quiz-classic-q-number {
    width: 36px;
    height: 36px;
    background: var(--quiz-classic-accent);
    color: white;
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Source Serif 4', Georgia, serif;
}

.quiz-classic-question-text {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 1.125rem;
    line-height: 1.65;
    color: var(--quiz-classic-text);
    margin-bottom: 1.5rem;
}

.quiz-classic-options {
    display: grid;
    gap: 0.75rem;
}

.quiz-classic-option-item { position: relative; }

.quiz-classic-option-radio {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.quiz-classic-option-label {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border: 1px solid var(--quiz-classic-border);
    border-radius: 2px;
    cursor: pointer;
    background: var(--quiz-classic-paper);
    transition: border-color 0.2s, background 0.2s;
}

.quiz-classic-option-label:hover {
    border-color: var(--quiz-classic-accent);
    background: rgba(45, 90, 61, 0.03);
}

.quiz-classic-option-radio:checked + .quiz-classic-option-label {
    border-color: var(--quiz-classic-accent);
    background: rgba(45, 90, 61, 0.06);
}

.quiz-classic-option-radio:checked + .quiz-classic-option-label::before {
    content: '✓';
    position: absolute;
    right: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--quiz-classic-accent);
}

.quiz-classic-option-letter {
    width: 32px;
    height: 32px;
    background: var(--quiz-classic-bg);
    border: 1px solid var(--quiz-classic-border);
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--quiz-classic-text);
    flex-shrink: 0;
}

.quiz-classic-option-radio:checked + .quiz-classic-option-label .quiz-classic-option-letter {
    background: var(--quiz-classic-accent);
    border-color: var(--quiz-classic-accent);
    color: white;
}

.quiz-classic-text-input {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 1px solid var(--quiz-classic-border);
    border-radius: 2px;
    font-size: 1rem;
    background: var(--quiz-classic-paper);
    color: var(--quiz-classic-text);
    transition: border-color 0.2s;
}

.quiz-classic-text-input:focus {
    outline: none;
    border-color: var(--quiz-classic-accent);
}

.quiz-classic-submit-section {
    border-top: 1px solid var(--quiz-classic-border);
    padding-top: 2rem;
    margin-top: 2rem;
}

.quiz-classic-btn-primary {
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--quiz-classic-accent);
    color: white;
    border: none;
    border-radius: 2px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.quiz-classic-btn-primary:hover {
    background: var(--quiz-classic-accent-hover);
    color: white;
}

.quiz-classic-btn-secondary {
    width: 100%;
    padding: 0.875rem 1.5rem;
    background: transparent;
    color: var(--quiz-classic-text-muted);
    border: 1px solid var(--quiz-classic-border);
    border-radius: 2px;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    margin-top: 0.75rem;
    transition: border-color 0.2s, color 0.2s;
}

.quiz-classic-btn-secondary:hover {
    border-color: var(--quiz-classic-accent);
    color: var(--quiz-classic-accent);
}

/* Result boxes (course quiz results, attempts exhausted) */
.quiz-classic-result-box {
    background: var(--quiz-classic-paper);
    border: 1px solid var(--quiz-classic-border);
    border-radius: 2px;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.quiz-classic-result-box.success {
    border-left: 4px solid var(--quiz-classic-success);
    background: rgba(45, 90, 61, 0.04);
}

.quiz-classic-result-box.fail {
    border-left: 4px solid var(--quiz-classic-danger);
    background: rgba(139, 46, 46, 0.04);
}

.quiz-classic-result-title {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--quiz-classic-text);
    margin-bottom: 1rem;
}

.quiz-classic-submission-item {
    margin-bottom: 1rem;
    padding: 1rem 1.25rem;
    border-radius: 2px;
    background: var(--quiz-classic-paper);
    border: 1px solid var(--quiz-classic-border);
    border-left: 3px solid transparent;
}

.quiz-classic-submission-item.correct {
    border-left-color: var(--quiz-classic-success);
}

.quiz-classic-submission-item.incorrect {
    border-left-color: var(--quiz-classic-danger);
}

.quiz-classic-info-box {
    background: var(--quiz-classic-bg);
    border: 1px solid var(--quiz-classic-border);
    border-radius: 2px;
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
    color: var(--quiz-classic-text-muted);
}

.quiz-classic-badge {
    padding: 0.25rem 0.625rem;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-radius: 1px;
}

.quiz-classic-badge-type {
    background: var(--quiz-classic-bg);
    color: var(--quiz-classic-text-muted);
    border: 1px solid var(--quiz-classic-border);
}

.quiz-classic-badge-difficulty {
    background: rgba(139, 105, 20, 0.1);
    color: var(--quiz-classic-warning);
    border: 1px solid rgba(139, 105, 20, 0.25);
}

@media (max-width: 768px) {
    .quiz-classic-title { font-size: 1.5rem; }
    .quiz-classic-meta { font-size: 0.8125rem; gap: 1rem; }
    .quiz-classic-question { padding: 1.5rem 1.25rem; }
    .quiz-classic-question-text { font-size: 1.0625rem; }
    .quiz-classic-timer-text { font-size: 1.25rem; }
    .quiz-classic-option-label { padding: 0.875rem 1rem; }
}