/**
 * Bitcoin Sovereign Academy - Quiz Widget Styles
 *
 * Beautiful, responsive quiz component styling that matches
 * the academy's design language.
 */

:root {
    --quiz-primary: #00BCD4;
    --quiz-primary-dark: #00ACC1;
    --quiz-success: #4caf50;
    --quiz-error: #ef4444;
    --quiz-warning: #ff9800;
    --quiz-bg-dark: #1a1a1a;
    --quiz-bg-secondary: #2d2d2d;
    --quiz-text-light: #e0e0e0;
    --quiz-text-dim: #999;
    --quiz-border: rgba(255, 255, 255, 0.1);
}

/* Quiz Container */
.quiz-widget {
    background: var(--quiz-bg-secondary);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    margin: 2rem 0;
    animation: quizFadeIn 0.4s ease-out;
}

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

/* Quiz Header */
.quiz-header {
    background: linear-gradient(135deg, var(--quiz-primary-dark), var(--quiz-primary));
    padding: 2rem;
    color: white;
}

.quiz-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
}

.quiz-description {
    margin: 0 0 1.5rem;
    opacity: 0.9;
    font-size: 0.95rem;
}

.quiz-progress-bar {
    background: rgba(255, 255, 255, 0.2);
    height: 8px;
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.quiz-progress-fill {
    background: white;
    height: 100%;
    border-radius: 999px;
    transition: width 0.4s ease-out;
}

.quiz-progress-text {
    font-size: 0.85rem;
    opacity: 0.9;
    text-align: right;
}

/* Question Container */
.quiz-question-container {
    padding: 2rem;
}

.quiz-question {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--quiz-text-light);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.question-number {
    color: var(--quiz-primary);
    margin-right: 0.5rem;
}

.quiz-hint {
    font-size: 0.9rem;
    color: var(--quiz-text-dim);
    margin-bottom: 1rem;
    font-style: italic;
}

/* Quiz Options */
.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.quiz-options-tf {
    flex-direction: row;
    gap: 1rem;
}

.quiz-option {
    position: relative;
    background: var(--quiz-bg-dark);
    border: 2px solid var(--quiz-border);
    border-radius: 0.75rem;
    padding: 1rem 1rem 1rem 3rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: block;
}

.quiz-option:hover {
    border-color: var(--quiz-primary);
    background: rgba(0, 188, 212, 0.05);
}

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

.quiz-option input:checked ~ .option-text {
    color: var(--quiz-primary);
    font-weight: 600;
}

.quiz-option input:checked ~ .option-radio::after,
.quiz-option input:checked ~ .option-checkbox::after {
    opacity: 1;
    transform: scale(1);
}

.quiz-option input:disabled {
    cursor: not-allowed;
}

.quiz-option input:disabled ~ .option-text {
    opacity: 0.6;
}

.option-text {
    color: var(--quiz-text-light);
    font-size: 1rem;
    line-height: 1.5;
    transition: all 0.2s ease;
}

/* Radio Button Styling */
.option-radio {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    border: 2px solid var(--quiz-border);
    border-radius: 50%;
    background: var(--quiz-bg-dark);
    transition: all 0.2s ease;
}

.option-radio::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--quiz-primary);
    opacity: 0;
    transition: all 0.2s ease;
}

.quiz-option:hover .option-radio {
    border-color: var(--quiz-primary);
}

/* Checkbox Styling */
.option-checkbox {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    border: 2px solid var(--quiz-border);
    border-radius: 4px;
    background: var(--quiz-bg-dark);
    transition: all 0.2s ease;
}

.option-checkbox::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    color: white;
    font-size: 14px;
    font-weight: bold;
    opacity: 0;
    transition: all 0.2s ease;
}

.quiz-option input:checked ~ .option-checkbox {
    background: var(--quiz-primary);
    border-color: var(--quiz-primary);
}

.quiz-option:hover .option-checkbox {
    border-color: var(--quiz-primary);
}

/* True/False Options */
.quiz-option-tf {
    flex: 1;
    text-align: center;
    padding: 1.5rem 1rem;
}

.quiz-option-tf .option-radio {
    position: static;
    transform: none;
    margin: 0 auto 0.5rem;
    display: block;
}

.quiz-option-tf .option-text {
    display: block;
    font-size: 1.1rem;
}

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

.quiz-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    flex: 1;
    max-width: 200px;
}

.quiz-btn-primary {
    background: linear-gradient(135deg, var(--quiz-primary), var(--quiz-primary-dark));
    color: white;
}

.quiz-btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 188, 212, 0.4);
}

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

.quiz-btn-secondary {
    background: var(--quiz-bg-dark);
    color: var(--quiz-text-light);
    border: 2px solid var(--quiz-border);
}

.quiz-btn-secondary:hover {
    border-color: var(--quiz-primary);
    background: rgba(0, 188, 212, 0.1);
}

/* Feedback */
.quiz-feedback {
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-top: 2px solid var(--quiz-border);
    animation: feedbackSlideIn 0.3s ease-out;
}

@keyframes feedbackSlideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.quiz-feedback.correct {
    background: rgba(76, 175, 80, 0.1);
    border-top-color: var(--quiz-success);
}

.quiz-feedback.incorrect {
    background: rgba(239, 68, 68, 0.1);
    border-top-color: var(--quiz-error);
}

.feedback-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    flex-shrink: 0;
}

.quiz-feedback.correct .feedback-icon {
    background: var(--quiz-success);
    color: white;
}

.quiz-feedback.incorrect .feedback-icon {
    background: var(--quiz-error);
    color: white;
}

.feedback-content {
    flex: 1;
}

.feedback-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.quiz-feedback.correct .feedback-title {
    color: var(--quiz-success);
}

.quiz-feedback.incorrect .feedback-title {
    color: var(--quiz-error);
}

.feedback-explanation {
    color: var(--quiz-text-light);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Results View */
.quiz-results {
    text-align: center;
}

.quiz-results-header {
    padding: 3rem 2rem 2rem;
}

.quiz-results-header.passed {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.2), rgba(76, 175, 80, 0.1));
}

.quiz-results-header.failed {
    background: linear-gradient(135deg, rgba(255, 152, 0, 0.2), rgba(255, 152, 0, 0.1));
}

.results-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: resultsBounce 0.6s ease-out;
}

@keyframes resultsBounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-20px);
    }
    60% {
        transform: translateY(-10px);
    }
}

.results-title {
    font-size: 2rem;
    color: var(--quiz-text-light);
    margin-bottom: 0.5rem;
}

.results-subtitle {
    font-size: 1rem;
    color: var(--quiz-text-dim);
    max-width: 500px;
    margin: 0 auto;
}

.quiz-results-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 2rem;
    padding: 2rem;
    border-top: 2px solid var(--quiz-border);
    border-bottom: 2px solid var(--quiz-border);
}

.result-stat {
    animation: statFadeIn 0.5s ease-out backwards;
}

.result-stat:nth-child(1) { animation-delay: 0.1s; }
.result-stat:nth-child(2) { animation-delay: 0.2s; }
.result-stat:nth-child(3) { animation-delay: 0.3s; }

@keyframes statFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--quiz-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--quiz-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.quiz-achievement {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.2), rgba(76, 175, 80, 0.1));
    border: 2px solid var(--quiz-success);
    border-radius: 0.75rem;
    padding: 1rem 2rem;
    margin: 0 2rem 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    animation: achievementPulse 2s ease-in-out infinite;
}

@keyframes achievementPulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.4);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(76, 175, 80, 0);
    }
}

.achievement-badge {
    font-size: 1.5rem;
}

.achievement-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--quiz-success);
}

/* Responsive Design */
@media (max-width: 768px) {
    .quiz-header {
        padding: 1.5rem;
    }

    .quiz-title {
        font-size: 1.25rem;
    }

    .quiz-question-container {
        padding: 1.5rem;
    }

    .quiz-question {
        font-size: 1.1rem;
    }

    .quiz-options-tf {
        flex-direction: column;
    }

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

    .quiz-btn {
        max-width: none;
    }

    .quiz-results-stats {
        gap: 1rem;
    }

    .stat-value {
        font-size: 2rem;
    }

    .results-title {
        font-size: 1.5rem;
    }

    .quiz-results-actions {
        flex-direction: column;
    }

    .quiz-results-actions .quiz-btn {
        width: 100%;
    }
}

/* Dark Mode Support (if needed) */
@media (prefers-color-scheme: dark) {
    /* Already dark by default */
}

/* Print Styles */
@media print {
    .quiz-navigation,
    .quiz-results-actions {
        display: none;
    }

    .quiz-widget {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}