/* Демо стили для теста ЕГЭ */
.demo-container {
    padding: 140px 0 2rem 0;
}

.demo-header {
    text-align: center;
    margin-bottom: 2rem;
}

.demo-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--electric-blue);
    margin-bottom: 1rem;
}

.demo-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.progress-container {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

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

.progress-text {
    position: relative;
    z-index: 1;
    font-weight: 600;
}

.progress-percent {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.demo-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--card-bg);
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
}

.stat-item i {
    color: var(--electric-blue);
}

.question-section {
    margin-bottom: 1.5rem;
}

.question-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

.question-title {
    font-size: 1.8rem;
    font-weight: 700;
}

.question-points {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gold);
    font-weight: 600;
}

.question-content {
    margin-bottom: 2rem;
}

.question-text {
    font-size: 1.3rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.question-image {
    text-align: center;
    margin: 2rem 0;
}

.question-image img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.answer-form {
    margin-top: 2rem;
}

.options-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.option-label {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 2px solid transparent;
}

.option-label:hover {
    background: var(--card-bg);
    border-color: var(--electric-blue);
}

.option-label input[type="radio"],
.option-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
}

.option-text {
    flex: 1;
    font-size: 1.1rem;
}

.text-input,
.formula-input {
    width: 100%;
    padding: 1rem;
    font-size: 1.2rem;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: border-color 0.2s ease;
    box-sizing: border-box;
}

.text-input:focus,
.formula-input:focus {
    outline: none;
    border-color: var(--electric-blue);
}

.sort-container {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-bottom: 2rem;
}

.sort-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border-radius: 10px;
    cursor: move;
    border: 2px solid transparent;
    transition: all 0.2s ease;
}

.sort-item:hover {
    border-color: var(--electric-blue);
}

.sort-item.dragging {
    opacity: 0.5;
}

.handle {
    cursor: grab;
    color: var(--text-secondary);
}

.sort-text {
    flex: 1;
    font-size: 1.1rem;
}

.formula-answer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.formula-image {
    text-align: center;
}

.formula-image img {
    max-width: 300px;
    border-radius: 10px;
}

.form-actions {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 2rem;
}

.navigation-section {
    text-align: center;
}

.section-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.question-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.nav-item {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

.nav-item:hover {
    background: var(--card-bg);
    transform: translateY(-2px);
}

.nav-item.active {
    background: var(--electric-blue);
    color: white;
}

.nav-item.answered {
    background: var(--success-green);
    color: white;
}

.navigation-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Адаптивность */
@media (max-width: 768px) {
    .demo-title {
        font-size: 2rem;
    }
    
    .demo-stats {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .question-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
    }
}

/* Стили для страницы результатов */
.results-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.results-header {
    text-align: center;
    margin-bottom: 3rem;
}

.results-title {
    font-size: 2.5rem;
    color: var(--electric-blue);
    margin-bottom: 1rem;
}

.results-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.results-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.score-circle {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    font-weight: bold;
    font-size: 1.5rem;
}

.score-circle.excellent {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
}

.score-circle.good {
    background: linear-gradient(135deg, #17a2b8, #20c997);
    color: white;
}

.score-circle.satisfactory {
    background: linear-gradient(135deg, #ffc107, #fd7e14);
    color: white;
}

.score-circle.poor {
    background: linear-gradient(135deg, #dc3545, #fd7e14);
    color: white;
}

.score-percentage {
    font-size: 2.5rem;
    font-weight: 800;
}

.score-text {
    font-size: 1.2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-secondary);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
}

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

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
}

.answers-review {
    margin-top: 2rem;
}

.answer-item {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.answer-item:last-child {
    border-bottom: none;
}

.answer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.answer-question {
    font-weight: 600;
    flex: 1;
}

.answer-status {
    font-weight: 600;
    margin-left: 1rem;
}

.answer-correct {
    color: #28a745;
    white-space: nowrap;
}

.answer-incorrect {
    color: #dc3545;
    white-space: nowrap;
}

.answer-content {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 0.8rem;
    margin-top: 0.5rem;
    font-size: 0.95rem;
}

.answer-user {
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.answer-correct-answer {
    color: #28a745;
    font-weight: 600;
}

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

/* ========== ОНБОРДИНГ-БЛОК ========== */
.onboarding-block {
    max-width: 720px;
    margin: 0 auto 2rem auto;
    background: var(--card-bg, #ffffff);
    border-radius: var(--radius-lg, 16px);
    padding: 2rem 2.5rem;
    box-shadow: var(--shadow-lg, 0 12px 30px rgba(0, 0, 0, 0.15));
    position: relative;
    animation: onboardingFadeIn 0.5s ease;
}

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

.onboarding-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--medium-gray, #90A4AE);
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition, all 0.3s ease);
}

.onboarding-close:hover {
    background: var(--light-gray, #F5F7FA);
    color: var(--dark-gray, #37474F);
}

.onboarding-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-right: 2rem;
}

.onboarding-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--electric-blue, #2196F3);
    margin-bottom: 0.5rem;
    font-family: 'Montserrat', sans-serif;
}

.onboarding-subtitle {
    font-size: 1.1rem;
    color: var(--medium-gray, #90A4AE);
    line-height: 1.5;
}

.onboarding-sections {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.onboarding-section {
    padding: 0;
}

.onboarding-section-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--deep-navy, #1A237E);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: 'Montserrat', sans-serif;
}

.onboarding-section-title i {
    color: var(--electric-blue, #2196F3);
    font-size: 1.1rem;
    width: 1.4rem;
    text-align: center;
}

.onboarding-section-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--dark-gray, #37474F);
    padding-left: 2rem;
}

.onboarding-section-text .text-warning {
    color: var(--warning-orange, #FF9800);
}

.onboarding-section-text .text-success {
    color: var(--success-green, #4CAF50);
}

.onboarding-section-text .text-danger {
    color: var(--danger-red, #F44336);
}

/* Пульсация для строки с перезагрузкой при welcome=need_refresh */
.pulse-refresh {
    display: inline-block;
    padding: 0.3rem 0.6rem;
    border-radius: var(--radius-sm, 8px);
    animation: pulseRefresh 1.5s ease-in-out infinite;
}

@keyframes pulseRefresh {
    0% {
        background-color: #ffffff;
        color: #000000;
    }
    50% {
        background-color: #F44336;
        color: #ffffff;
    }
    100% {
        background-color: #ffffff;
        color: #000000;
    }
}

.pulse-refresh i {
    animation: pulseIcon 1.5s ease-in-out infinite;
}

@keyframes pulseIcon {
    0% {
        color: #FF9800;
    }
    50% {
        color: #ffffff;
    }
    100% {
        color: #FF9800;
    }
}

.onboarding-actions {
    text-align: center;
    margin-top: 0.5rem;
}

.onboarding-btn {
    padding: 0.9rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--radius-md, 12px);
    transition: var(--transition, all 0.3s ease);
}

.onboarding-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-blue, 0 8px 20px rgba(33, 150, 243, 0.3));
}

/* Адаптивность для онбординга */
@media (max-width: 768px) {
    .onboarding-block {
        padding: 1.5rem 1.2rem;
        margin: 0 0.5rem 1.5rem 0.5rem;
    }
    
    .onboarding-title {
        font-size: 1.4rem;
    }
    
    .onboarding-subtitle {
        font-size: 0.95rem;
    }
    
    .onboarding-section-title {
        font-size: 1.05rem;
    }
    
    .onboarding-section-text {
        font-size: 0.95rem;
        padding-left: 0;
    }
    
    .onboarding-header {
        padding-right: 1.5rem;
    }
}

/* Адаптивность для результатов */
@media (max-width: 768px) {
    .results-title {
        font-size: 2rem;
    }
    
    .score-circle {
        width: 120px;
        height: 120px;
    }
    
    .score-percentage {
        font-size: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .results-actions {
        flex-direction: column;
    }
    
    .results-actions .btn {
        width: 100%;
    }
}