/* Quiz System Styles */

/* Filter Buttons */
.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}

.filter-btn:hover {
    background: rgba(147, 51, 234, 0.1);
    border-color: var(--color-purple-500);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--color-purple-500), var(--color-blue-500));
    color: white;
    border-color: transparent;
}

/* Quiz Cards Grid */
.quizzes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

/* Quiz Card */
.quiz-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.quiz-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-purple-500), var(--color-blue-500));
    opacity: 0;
    transition: opacity 0.3s;
}

.quiz-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-purple-500);
    box-shadow: 0 12px 40px rgba(147, 51, 234, 0.2);
}

.quiz-card:hover::before {
    opacity: 1;
}

.quiz-card.completed {
    border-color: rgba(16, 185, 129, 0.4);
}

.quiz-card.completed::before {
    background: linear-gradient(90deg, #10b981, #059669);
    opacity: 1;
}

.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.quiz-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-purple-500), var(--color-blue-500));
    border-radius: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.quiz-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
}

.quiz-status.completed {
    color: #10b981;
}

.quiz-status.not-attempted {
    color: var(--text-tertiary);
}

.quiz-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.quiz-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.quiz-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.quiz-meta-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.quiz-meta-item i {
    color: var(--color-purple-500);
}

.quiz-score {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-radius: 10px;
    margin-top: 1rem;
}

.quiz-score-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.quiz-score-value {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-purple-500), var(--color-blue-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.quiz-score-value.perfect {
    background: linear-gradient(135deg, #10b981, #059669);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.quiz-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--color-purple-500), var(--color-blue-500));
    border: none;
    border-radius: 10px;
    color: white;
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all 0.3s;
    width: 100%;
    justify-content: center;
    margin-top: 1rem;
}

.quiz-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(147, 51, 234, 0.4);
}

.quiz-action.retake {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

/* Quiz Page Styles */
.quiz-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.quiz-progress {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

/* Override the global ::after from style.css */
.progress-bar::after {
    display: none !important;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-purple-500), var(--color-blue-500));
    transition: width 0.3s ease-in-out;
    position: absolute;
    left: 0;
    top: 0;
}

.progress-text {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
}

/* Question Card */
.question-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    margin-bottom: 2rem;
}

.question-number {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(147, 51, 234, 0.15), rgba(59, 130, 246, 0.15));
    border: 1px solid rgba(147, 51, 234, 0.3);
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-purple-500);
    margin-bottom: 1rem;
}

.question-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.question-code {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 1rem;
    margin: 1rem 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9375rem;
    overflow-x: auto;
}

/* Answer Options */
.answer-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.answer-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--bg-secondary);
    border: 2px solid var(--glass-border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
}

.answer-option:hover {
    border-color: var(--color-purple-500);
    background: rgba(147, 51, 234, 0.05);
}

.answer-option.selected {
    border-color: var(--color-purple-500);
    background: rgba(147, 51, 234, 0.1);
}

.answer-option.correct {
    border-color: #10b981;
    background: rgba(16, 185, 129, 0.1);
}

.answer-option.incorrect {
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.answer-option.disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.answer-radio {
    width: 24px;
    height: 24px;
    border: 2px solid var(--glass-border);
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.answer-option.selected .answer-radio {
    border-color: var(--color-purple-500);
    background: var(--color-purple-500);
}

.answer-option.correct .answer-radio {
    border-color: #10b981;
    background: #10b981;
}

.answer-option.incorrect .answer-radio {
    border-color: #ef4444;
    background: #ef4444;
}

.answer-radio i {
    color: white;
    font-size: 0.875rem;
    display: none;
}

.answer-option.selected .answer-radio i,
.answer-option.correct .answer-radio i,
.answer-option.incorrect .answer-radio i {
    display: block;
}

.answer-text {
    flex: 1;
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* Feedback Box */
.feedback-box {
    margin-top: 1.5rem;
    padding: 1.25rem;
    border-radius: 12px;
    display: none;
    animation: slideDown 0.3s ease;
}

.feedback-box.show {
    display: block;
}

.feedback-box.correct {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.feedback-box.incorrect {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.feedback-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.feedback-icon {
    font-size: 1.5rem;
}

.feedback-box.correct .feedback-icon {
    color: #10b981;
}

.feedback-box.incorrect .feedback-icon {
    color: #ef4444;
}

.feedback-title {
    font-size: 1.125rem;
    font-weight: 700;
}

.feedback-box.correct .feedback-title {
    color: #10b981;
}

.feedback-box.incorrect .feedback-title {
    color: #ef4444;
}

.feedback-text {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Quiz Navigation */
.quiz-navigation {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    margin-top: 2rem;
}

.quiz-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}

.quiz-nav-btn:hover:not(:disabled) {
    background: rgba(147, 51, 234, 0.1);
    border-color: var(--color-purple-500);
    transform: translateY(-2px);
}

.quiz-nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.quiz-nav-btn.primary {
    background: linear-gradient(135deg, var(--color-purple-500), var(--color-blue-500));
    color: white;
    border-color: transparent;
}

.quiz-nav-btn.primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(147, 51, 234, 0.4);
}

/* Results Page */
.results-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.results-score-circle {
    width: 200px;
    height: 200px;
    margin: 0 auto 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--glass-bg);
    border: 4px solid var(--glass-border);
}

.results-score-circle::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    padding: 4px;
    background: linear-gradient(135deg, var(--color-purple-500), var(--color-blue-500));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
}

.results-score-circle.perfect::before {
    background: linear-gradient(135deg, #10b981, #059669);
}

.results-percentage {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-purple-500), var(--color-blue-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.results-percentage.perfect {
    background: linear-gradient(135deg, #10b981, #059669);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.results-message {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.results-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.results-stat {
    padding: 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.results-stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.results-stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.results-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

/* Animations */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.pulse {
    animation: pulse 0.5s ease;
}

/* Responsive */
@media (max-width: 768px) {
    .quizzes-grid {
        grid-template-columns: 1fr;
    }

    .quiz-navigation {
        flex-direction: column;
    }

    .quiz-nav-btn {
        width: 100%;
        justify-content: center;
    }

    .results-percentage {
        font-size: 2.5rem;
    }

    .filter-btn {
        flex: 1;
        min-width: 140px;
        justify-content: center;
    }
}