/* Modern Quiz Styles - Спорт Великобритании */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #ec4899;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1f2937;
    --darker: #111827;
    --light: #f8fafc;
    --lighter: #f9fafb;
    --gray: #6b7280;
    --gray-light: #e5e7eb;
    --gray-dark: #374151;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ПОЛНАЯ ЗАЩИТА ОТ ВЫДЕЛЕНИЯ И КОПИРОВАНИЯ */
html, body {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
    -webkit-text-size-adjust: none;
    touch-action: manipulation;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    line-height: 1.6;
    color: var(--dark);
    overflow-x: hidden;
}

/* Защита для всего контейнера квиза */
.quiz-container, 
.quiz-container * {
    -webkit-user-select: none !important;
    -moz-user-select: none !important;
    -ms-user-select: none !important;
    user-select: none !important;
    -webkit-touch-callout: none !important;
    -webkit-user-drag: none !important;
    -webkit-tap-highlight-color: transparent !important;
    cursor: default;
}

/* Исключение только для поля ввода имени */
.input-group input {
    -webkit-user-select: text !important;
    -moz-user-select: text !important;
    -ms-user-select: text !important;
    user-select: text !important;
    -webkit-touch-callout: default !important;
}

/* Полное скрытие выделения */
::selection {
    background: transparent !important;
    color: inherit !important;
}

::-moz-selection {
    background: transparent !important;
    color: inherit !important;
}

.quiz-container::selection,
.quiz-container *::selection {
    background: transparent !important;
    color: inherit !important;
}

.quiz-container::-moz-selection,
.quiz-container *::-moz-selection {
    background: transparent !important;
    color: inherit !important;
}

/* Main Quiz Container */
.quiz-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 900px;
    overflow: hidden;
    animation: slideUp 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Header Styles */
.quiz-header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 40px 30px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.quiz-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
}

.header-content {
    position: relative;
    z-index: 2;
}

.quiz-header h1 {
    font-size: 2.5em;
    margin-bottom: 15px;
    font-weight: 800;
    background: linear-gradient(135deg, #fff, #e0e7ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.quiz-description {
    font-size: 1.1em;
    opacity: 0.9;
    margin-bottom: 25px;
    font-weight: 500;
    line-height: 1.5;
}

/* Progress and Timer */
.progress-container {
    background: rgba(255, 255, 255, 0.2);
    height: 12px;
    border-radius: 10px;
    margin: 30px 0;
    overflow: hidden;
    backdrop-filter: blur(10px);
    position: relative;
}

.progress-bar {
    background: linear-gradient(90deg, var(--success), #34d399);
    height: 100%;
    width: 0%;
    transition: width 0.4s ease;
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.timer {
    font-size: 1.2em;
    font-weight: 700;
    background: rgba(255, 255, 255, 0.15);
    padding: 12px 24px;
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

.timer::before {
    content: '⏱️';
    font-size: 1.1em;
}

.timer-warning {
    animation: pulse 1s infinite;
}

/* Start Screen */
.start-container {
    padding: 50px 40px;
    display: none;
}

.start-container.active {
    display: block;
    animation: fadeIn 0.5s ease-out;
}

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

.welcome-message h2 {
    color: var(--dark);
    font-size: 2.2em;
    margin-bottom: 15px;
    font-weight: 700;
    text-align: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.welcome-message p {
    color: var(--gray);
    font-size: 1.2em;
    margin-bottom: 40px;
    font-weight: 500;
    text-align: center;
}

/* Stats Grid */
.quiz-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 40px 0;
}

.stat-item {
    background: var(--light);
    padding: 25px 20px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 15px;
    transition: var(--transition);
    border: 1px solid var(--gray-light);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    font-size: 2em;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    color: white;
    flex-shrink: 0;
}

.stat-info {
    text-align: left;
}

.stat-value {
    display: block;
    font-size: 1.8em;
    font-weight: 800;
    color: var(--dark);
    line-height: 1;
}

.stat-label {
    color: var(--gray);
    font-size: 0.9em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 5px;
}

/* Topics Grid */
.quiz-topics {
    margin: 30px 0;
    padding: 25px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.quiz-topics h3 {
    margin-bottom: 20px;
    color: var(--dark);
    font-size: 1.3em;
    font-weight: 700;
    text-align: center;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 12px;
}

.topic-item {
    background: rgba(255, 255, 255, 0.95);
    padding: 15px 10px;
    border-radius: var(--radius-sm);
    text-align: center;
    font-weight: 600;
    font-size: 0.9em;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.topic-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

/* Instructions */
.quiz-instructions {
    margin: 30px 0;
    padding: 25px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border-radius: var(--radius);
    border-left: 4px solid var(--success);
    backdrop-filter: blur(10px);
}

.quiz-instructions h3 {
    margin-bottom: 15px;
    color: var(--dark);
    font-size: 1.3em;
    font-weight: 700;
}

.instructions-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.instruction-item {
    color: var(--gray-dark);
    font-size: 0.95em;
    font-weight: 500;
    padding-left: 10px;
    border-left: 2px solid var(--success);
}

/* Forms */
.start-form {
    max-width: 400px;
    margin: 0 auto;
}

.input-group {
    position: relative;
    margin-bottom: 25px;
}

.input-group input {
    width: 100%;
    padding: 18px 20px 18px 50px;
    font-size: 1.1em;
    border: 2px solid var(--gray-light);
    border-radius: var(--radius);
    background: var(--light);
    transition: var(--transition);
    font-weight: 500;
    font-family: inherit;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    background: white;
    transform: translateY(-2px);
}

.input-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2em;
    color: var(--gray);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 32px;
    border: none;
    border-radius: var(--radius);
    font-size: 1.1em;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    font-family: inherit;
    line-height: 1;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

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

.btn-secondary:hover {
    background: white;
    border-color: var(--primary);
    transform: translateY(-2px);
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.2em;
    width: 100%;
}

.btn-icon {
    font-size: 1.2em;
}

/* Questions */
.question-container {
    padding: 40px;
    display: none;
}

.question-container.active {
    display: block;
    animation: slideInLeft 0.5s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.question-text {
    font-size: 1.6em;
    margin-bottom: 40px;
    color: var(--dark);
    text-align: center;
    font-weight: 700;
    line-height: 1.4;
    background: linear-gradient(135deg, var(--dark), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

.question-number {
    font-size: 0.9em;
    color: var(--gray);
    margin-bottom: 15px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.points-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--warning), #f59e0b);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8em;
    font-weight: 700;
    margin-left: 10px;
    vertical-align: middle;
}

.answers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
}

.answer-btn {
    background: var(--light);
    border: 2px solid var(--gray-light);
    border-radius: var(--radius);
    padding: 20px 25px;
    font-size: 1.1em;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    position: relative;
    overflow: hidden;
    font-weight: 500;
    font-family: inherit;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.answer-btn:hover {
    background: white;
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.answer-btn.selected {
    background: linear-gradient(135deg, #dbeafe, #e0e7ff);
    border-color: var(--primary);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.2);
}

.answer-btn.correct {
    background: linear-gradient(135deg, #d1fae5, #dcfce7);
    border-color: var(--success);
    color: #065f46;
}

.answer-btn.incorrect {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    border-color: var(--danger);
    color: #7f1d1d;
}

.answer-btn:disabled {
    cursor: not-allowed;
    opacity: 0.7;
    transform: none !important;
}

.answer-number {
    font-weight: 700;
    color: var(--primary);
    margin-right: 10px;
}

.question-hint {
    text-align: center;
    margin-top: 20px;
    font-size: 0.9em;
    color: var(--gray);
    font-style: italic;
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--warning);
}

/* Navigation */
.navigation {
    padding: 25px 40px;
    display: none;
    justify-content: space-between;
    align-items: center;
    background: var(--light);
    border-top: 1px solid var(--gray-light);
}

.navigation.active {
    display: flex;
    animation: slideInUp 0.5s ease-out;
}

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

.quiz-progress {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.question-counter {
    font-weight: 700;
    color: var(--dark);
    font-size: 1.1em;
}

.progress-dots {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    max-width: 300px;
}

.progress-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-light);
    transition: var(--transition);
    cursor: pointer;
}

.progress-dot.active {
    background: var(--primary);
    transform: scale(1.2);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.progress-dot.answered {
    background: var(--success);
}

/* Results */
.result-container {
    padding: 50px 40px;
    display: none;
    text-align: center;
}

.result-container.active {
    display: block;
    animation: zoomIn 0.5s ease-out;
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.result-header {
    margin-bottom: 30px;
}

.result-emoji {
    font-size: 4em;
    margin-bottom: 20px;
    display: block;
}

.result-title {
    font-size: 2.2em;
    color: var(--dark);
    margin-bottom: 15px;
    font-weight: 800;
}

.score-display {
    font-size: 4em;
    font-weight: 900;
    margin: 30px 0;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.result-message {
    font-size: 1.3em;
    margin-bottom: 40px;
    color: var(--gray);
    line-height: 1.6;
    font-weight: 500;
}

/* Result Stats */
.result-stats {
    background: var(--light);
    padding: 30px;
    border-radius: var(--radius);
    margin: 40px 0;
    border: 1px solid var(--gray-light);
}

.stat-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.stat-item {
    background: white;
    padding: 20px;
    border-radius: var(--radius-sm);
    text-align: center;
    border: 1px solid var(--gray-light);
}

.stat-label {
    display: block;
    color: var(--gray);
    font-size: 0.9em;
    margin-bottom: 8px;
    font-weight: 600;
}

.stat-value {
    display: block;
    font-size: 1.4em;
    font-weight: 800;
    color: var(--dark);
}

/* Performance Rating */
.performance-rating {
    margin: 30px 0;
    padding: 25px;
    background: var(--light);
    border-radius: var(--radius);
    border: 1px solid var(--gray-light);
}

.performance-rating h3 {
    margin-bottom: 20px;
    color: var(--dark);
    font-size: 1.2em;
    font-weight: 700;
}

.rating-bar {
    height: 20px;
    background: #e0e0e0;
    border-radius: 10px;
    margin: 20px 0;
    position: relative;
    overflow: hidden;
}

.rating-fill {
    height: 100%;
    background: linear-gradient(90deg, #ff6b6b, #feca57, #48dbfb, #1dd1a1);
    border-radius: 10px;
    transition: width 1s ease-in-out;
    position: relative;
}

.rating-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer 2s infinite;
}

.rating-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    font-size: 0.8em;
    color: var(--gray);
    font-weight: 600;
}

/* Result Details */
.result-details {
    background: var(--light);
    padding: 30px;
    border-radius: var(--radius);
    margin: 30px 0;
    text-align: left;
    border: 1px solid var(--gray-light);
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-light);
    font-weight: 500;
}

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

.detail-label {
    color: var(--gray);
}

.detail-value {
    color: var(--dark);
    font-weight: 700;
}

/* Result Actions */
.result-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

/* Recent Results */
.quick-stats {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid var(--gray-light);
}

.quick-stats h3 {
    color: var(--dark);
    margin-bottom: 20px;
    font-size: 1.4em;
    font-weight: 700;
    text-align: center;
}

.recent-results-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 200px;
    overflow-y: auto;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: var(--light);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    border: 1px solid var(--gray-light);
}

.result-item:hover {
    background: white;
    box-shadow: var(--shadow);
    transform: translateX(5px);
}

.result-player {
    font-weight: 600;
    color: var(--dark);
    flex: 1;
}

.result-score {
    font-weight: 700;
    color: var(--primary);
    margin: 0 15px;
}

.result-date,
.result-time {
    color: var(--gray);
    font-size: 0.9em;
    min-width: 80px;
    text-align: right;
}

/* Badges */
.quiz-badge,
.time-badge {
    display: inline-block;
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8em;
    font-weight: bold;
    margin-left: 8px;
    vertical-align: middle;
}

.quiz-badge {
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
}

.time-badge {
    background: linear-gradient(135deg, #00b894, #00a085);
}

/* Notifications */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--success);
    color: white;
    padding: 15px 20px;
    border-radius: var(--radius);
    z-index: 10000;
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.3s ease-out;
    font-weight: 600;
    max-width: 300px;
}

.notification.error {
    background: var(--danger);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Responsive Design */
@media (max-width: 768px) {
    .quiz-container {
        margin: 10px;
        border-radius: 12px;
    }
    
    .quiz-header {
        padding: 30px 20px;
    }
    
    .quiz-header h1 {
        font-size: 2em;
    }
    
    .question-container,
    .start-container,
    .result-container {
        padding: 30px 20px;
    }
    
    .answers-grid {
        grid-template-columns: 1fr;
    }
    
    .navigation {
        flex-direction: column;
        gap: 20px;
        text-align: center;
        padding: 20px;
    }
    
    .quiz-stats {
        grid-template-columns: 1fr;
    }
    
    .result-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .question-text {
        font-size: 1.4em;
    }
    
    .score-display {
        font-size: 3em;
    }
    
    .stat-row {
        grid-template-columns: 1fr;
    }
    
    .topics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .welcome-message h2 {
        font-size: 1.8em;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .quiz-header h1 {
        font-size: 1.6em;
    }
    
    .quiz-description {
        font-size: 1em;
    }
    
    .question-text {
        font-size: 1.2em;
    }
    
    .answer-btn {
        padding: 15px 20px;
        font-size: 1em;
    }
    
    .topics-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-item {
        padding: 15px;
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5em;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.mt-30 { margin-top: 30px; }
.mb-30 { margin-bottom: 30px; }
.hidden { display: none; }

/* Loading States */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Focus States for Accessibility */
.btn:focus,
.answer-btn:focus,
.input-group input:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ДОПОЛНИТЕЛЬНАЯ ЗАЩИТА ДЛЯ МОБИЛЬНЫХ УСТРОЙСТВ */
@media (hover: none) and (pointer: coarse) {
    .quiz-container {
        -webkit-user-select: none;
        -webkit-touch-callout: none;
        -webkit-tap-highlight-color: transparent;
        touch-action: pan-y;
    }
    
    .answer-btn, .btn {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }
}

/* Запрет выделения для всех текстовых элементов */
.quiz-container h1,
.quiz-container h2,
.quiz-container h3,
.quiz-container h4,
.quiz-container h5,
.quiz-container h6,
.quiz-container p,
.quiz-container span {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
    pointer-events: none;
}

/* Разрешаем скроллинг для списка результатов */
.recent-results-list {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
    pointer-events: auto !important; /* Разрешаем взаимодействие */
    cursor: default;
}

/* Разрешаем события для элементов внутри списка результатов */
.recent-results-list .result-item {
    pointer-events: auto;
    cursor: default;
}

/* Разрешить события указателя для интерактивных элементов */
.btn, .answer-btn, .input-group input, .progress-dot {
    pointer-events: auto;
}

/* Запрет масштабирования на мобильных */
.quiz-container {
    touch-action: pan-y pinch-zoom;
}

/* Блокировка выделения при долгом нажатии */
.quiz-container {
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}