/* Enhanced Quiz Container Styles */
.test-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 1400px;
    margin: 2rem auto;
    animation: fadeInUp 0.6s ease;
}

.test-main {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    position: relative;
    overflow: hidden;
}

.test-main::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.test-sidebar {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

@media (min-width: 1024px) {
    .test-container {
        grid-template-columns: 3fr 1fr;
    }
    .test-sidebar {
        position: sticky;
        top: 100px; /* Adjust based on nav height */
        max-height: calc(100vh - 120px);
        overflow-y: auto;
    }
}

/* Beautiful Instructions Section */
.instructions-container { 
    text-align: center; 
    padding: 3rem 2rem;
    max-width: 800px;
    margin: 0 auto;
    animation: fadeIn 0.5s ease;
}

.instructions-container h2 { 
    font-size: 1.8rem; 
    margin-bottom: 1.5rem; 
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.instructions-container h2::before {
    content: '📝';
    font-size: 1.5rem;
}

.instructions-container ul { 
    list-style: none; 
    padding: 2rem; 
    margin: 2rem auto; 
    max-width: 600px; 
    text-align: left;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.instructions-container li { 
    margin-bottom: 1rem; 
    color: var(--text-secondary);
    padding-left: 1.5rem;
    position: relative;
}

.instructions-container li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.instructions-container li strong { 
    color: var(--primary-color);
    font-weight: 600;
}
/* Enhanced Quiz Setup */
.quiz-setup { 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    gap: 1.5rem; 
    margin-top: 2rem;
    padding: 2rem;
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.setup-item { 
    display: flex; 
    align-items: center; 
    gap: 1rem;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 8px;
    min-width: 300px;
    justify-content: space-between;
}

.setup-item label { 
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.setup-item input, .setup-item select { 
    padding: 0.6rem 1rem; 
    border-radius: 8px; 
    border: 2px solid var(--border-color); 
    background: var(--bg-primary); 
    color: var(--text-primary);
    font-weight: 500;
    transition: all 0.3s ease;
}

.setup-item input:focus, .setup-item select:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.setup-item input { 
    width: 100px; 
    text-align: center; 
}

.quiz-interface { display: none; }

/* Beautiful Timer Display */
.timer-container { 
    text-align: center; 
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    position: relative;
}

.timer-container::before {
    content: '⏱️';
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 1.2rem;
    opacity: 0.7;
}

.timer-label { 
    font-size: 0.9rem; 
    color: var(--text-muted); 
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

#timer-display { 
    font-family: 'JetBrains Mono', monospace; 
    font-size: 2.5rem; 
    font-weight: 700; 
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Enhanced Question Header */
.question-header { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    margin-bottom: 2rem; 
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.question-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 50%, var(--primary-color) 100%);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.question-number { 
    font-size: 1.4rem; 
    font-weight: 700; 
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.question-number::before {
    content: '📌';
    font-size: 1.2rem;
}

.marks { 
    display: flex; 
    gap: 0.75rem; 
}

.mark-tag { 
    font-size: 0.85rem; 
    font-weight: 600; 
    padding: 0.4rem 1rem; 
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.mark-tag.positive { 
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(16, 185, 129, 0.25));
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.mark-tag.negative { 
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(239, 68, 68, 0.25));
    color: var(--danger-color);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.question-content p { font-size: 1.1rem; margin-bottom: 1.5rem; }
.options-list { list-style: none; padding: 0; }
.option-item { margin-bottom: 1rem; }
.option-item label { display: flex; align-items: center; padding: 1rem; background-color: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 8px; cursor: pointer; transition: var(--transition); }
.option-item label:hover { border-color: var(--primary-color); background-color: var(--bg-tertiary); }
.option-item input[type="radio"] { margin-right: 1rem; transform: scale(1.2); }
.option-item input[type="radio"]:checked + span { font-weight: 600; color: var(--primary-color); }

/* Keyboard focus visibility */
.option-item label:focus-within { outline: 3px solid rgba(37, 99, 235, 0.35); outline-offset: 2px; }
.option-item label:active { transform: scale(0.995); }

/* Refined selected state */
.option-item input[type="radio"]:checked + span::before {
    content: "";
    display: inline-block;
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--primary-color);
    margin-right: 8px;
}

.quiz-navigation { display: flex; justify-content: space-between; align-items: center; margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--border-color); }

.sidebar-header { text-align: center; margin-bottom: 1rem; font-weight: 600; }
.question-palette { display: grid; grid-template-columns: repeat(auto-fill, minmax(40px, 1fr)); gap: 0.5rem; margin-bottom: 1rem; }
.palette-btn { width: 40px; height: 40px; border: 1px solid var(--border-color); background-color: var(--bg-secondary); color: var(--text-secondary); border-radius: 6px; cursor: pointer; transition: var(--transition); font-weight: 500; }
.palette-btn:hover { background-color: var(--border-hover); }
.palette-btn.current { border-color: var(--primary-color); background-color: var(--primary-light); color: var(--primary-dark); font-weight: bold; }
.palette-btn.answered { background-color: var(--success-color); color: white; }
.palette-btn.review { background-color: var(--warning-color); color: white; }
.palette-btn.answered.review { background: linear-gradient(135deg, var(--success-color) 50%, var(--warning-color) 50%); }

/* Palette accessibility */
.palette-btn:focus-visible { outline: 3px solid rgba(37,99,235,0.45); outline-offset: 2px; }

/* Beautiful Results Display */
.results-container { 
    text-align: center;
    animation: fadeInUp 0.6s ease;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.result-summary {
    background: linear-gradient(135deg, var(--card-bg), var(--bg-secondary));
    padding: 3rem;
    border-radius: 20px;
    margin-bottom: 3rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.result-summary::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.05) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.result-summary h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.score-overview {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin: 2rem 0;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.score-item {
    background: var(--card-bg);
    padding: 1.5rem 2rem;
    border-radius: 15px;
    min-width: 120px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.score-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.12);
}

.score-item.correct {
    border: 2px solid var(--success-color);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), transparent);
}

.score-item.incorrect {
    border: 2px solid var(--danger-color);
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.05), transparent);
}

.score-item.unanswered {
    border: 2px solid var(--warning-color);
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.05), transparent);
}

.score-number {
    font-size: 2.5rem;
    font-weight: 700;
    display: block;
    margin-bottom: 0.5rem;
}

.score-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    font-weight: 600;
}

.final-score {
    margin-top: 2rem;
    padding: 2rem;
    background: var(--bg-tertiary);
    border-radius: 15px;
    position: relative;
    z-index: 1;
}

.score-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.points {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.percentage {
    font-size: 1.8rem;
    color: var(--text-primary);
    font-weight: 600;
    padding: 0.5rem 1.5rem;
    background: var(--card-bg);
    border-radius: 25px;
    border: 2px solid var(--border-color);
}

/* Enhanced Question Review Cards */
.result-item {
    text-align: left;
    padding: 2rem;
    margin-bottom: 2rem;
    border-radius: 15px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.result-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: var(--border-color);
}

.result-item.correct::before {
    background: var(--success-color);
}

.result-item.incorrect::before {
    background: var(--danger-color);
}

.result-item.unanswered::before {
    background: var(--warning-color);
}

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

.question-num {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    background: var(--bg-secondary);
    border-radius: 8px;
}

.result-status {
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.3rem 1rem;
    border-radius: 20px;
}

.result-item.correct .result-status {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.result-item.incorrect .result-status {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

.result-item.unanswered .result-status {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.question-text {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    line-height: 1.6;
}

.answer-info {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 10px;
    margin-top: 1rem;
}

.user-answer, .correct-answer {
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.user-answer strong, .correct-answer strong {
    color: var(--text-primary);
    font-weight: 600;
}

.solution {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    border-radius: 10px;
    border-left: 4px solid var(--accent-color);
    position: relative;
}

.solution::before {
    content: '💡';
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    opacity: 0.5;
}

.solution strong {
    color: var(--accent-color);
    font-weight: 600;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Start Button Enhancement */
#start-test-btn {
    font-size: 1.1rem;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

#start-test-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

#start-test-btn:hover::before {
    width: 300px;
    height: 300px;
}

#start-test-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

/* Submit Button Enhancement */
#submit-test-btn {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

#submit-test-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

/* Print-friendly results */
@media print {
    .test-sidebar, .quiz-navigation, #instructions-container { display: none !important; }
    .results-container { page-break-before: always; }
    .result-question { break-inside: avoid; }
}