/* ============================================
   БАЗОВЫЕ СТИЛИ И ПЕРЕМЕННЫЕ
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* ОСНОВНЫЕ ЦВЕТА ТЕМЫ */
    --bg: #1a2539;
    --card: #131d2f;
    --muted: #94a3b8;
    --text: #e5e7eb;
    --accent: #00CED1;
    --accent-2: #4682B4;
    --ok: #10b981;
    --err: #ef4444;
    --border-radius: 20px;
    --transition: all 0.3s ease;
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);

    /* Transition оптимизации */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* ЦВЕТА ВЕРХНЕЙ РАМКИ КАТЕГОРИЙ */
    --category-cinema: #4682B4;
    --category-literature: #4682B4;
    --category-school: #4682B4;
    --category-ecology: #4682B4;
    --category-cartoons: #4682B4;
    --category-art: #4682B4;
    --category-geography: #4682B4;
    --category-theater: #4682B4;
    --category-music: #4682B4;
    --category-sport: #4682B4;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Ubuntu, Cantarell, 'Noto Sans', Arial, sans-serif;
    background: radial-gradient(1200px 800px at 20% -10%, #1f2937 0, transparent 60%),
                radial-gradient(1000px 700px at 120% 50%, #0ea5e9 0, transparent 50%),
                var(--bg);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--text);
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 920px;
    position: relative;
}

.screen {
    display: none;
    animation: fadeIn 0.4s ease;
}

.screen.active {
    display: block;
}

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

/* ============================================
   КНОПКА ВЫХОДА
   ============================================ */
.exit-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: var(--text);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    will-change: transform;
    transform: translateZ(0);
}

.exit-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: var(--err);
    color: var(--err);
    transform: rotate(90deg);
}

/* ============================================
   ГЛАВНЫЙ ЭКРАН
   ============================================ */
.logo {
    text-align: center;
    margin-bottom: 40px;
    color: var(--text);
}

.subtitle {
    font-size: 1.8em;
    font-weight: 600;
    opacity: 0.9;
    animation: subtitleFloat 3s ease-in-out infinite;
    background: linear-gradient(
        to bottom,
        var(--text) 50%,
        rgba(70, 130, 180, 0.6) 100%
    );
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}

@keyframes subtitleFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}





.categories {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

/* Блок category-btn */
.category-btn {
    background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius);
    padding: 32px 24px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    min-height: 160px;
    will-change: transform;
    transform: translateZ(0);
}

.category-btn__icon {
    font-size: 3.5em;
    position: relative;
    z-index: 1;
    transition: transform var(--transition-normal);
}

.category-btn:hover .category-btn__icon {
    transform: scale(1.1);
}

.category-btn__title {
    font-size: 1.3em;
    font-weight: 600;
    color: var(--text);
    position: relative;
    z-index: 1;
}

.category-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(26,37,57), rgba(70, 130, 180));
    opacity: 1;
    transition: var(--transition);
}

.category-btn:hover::before {
    opacity: 1;
}

.category-btn:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 15px 40px rgba(224, 255, 255, 0.3);
}

/* Модификаторы категорий с разными цветами */
.category-btn--cinema {
    border-top: 4px solid var(--category-cinema);
    --category-color: var(--category-cinema);
}

.category-btn--literature {
    border-top: 4px solid var(--category-literature);
    --category-color: var(--category-literature);
}

.category-btn--school {
    border-top: 4px solid var(--category-school);
    --category-color: var(--category-school);
}

.category-btn--ecology {
    border-top: 4px solid var(--category-ecology);
    --category-color: var(--category-ecology);
}

.category-btn--cartoons {
    border-top: 4px solid var(--category-cartoons);
    --category-color: var(--category-cartoons);
}

.category-btn--art {
    border-top: 4px solid var(--category-art);
    --category-color: var(--category-art);
}

.category-btn--geography {
    border-top: 4px solid var(--category-geography);
    --category-color: var(--category-geography);
}

.category-btn--theater {
    border-top: 4px solid var(--category-theater);
    --category-color: var(--category-theater);
}

.category-btn--music {
    border-top: 4px solid var(--category-music);
    --category-color: var(--category-music);
}

.category-btn--sport {
    border-top: 4px solid var(--category-sport);
    --category-color: var(--category-sport);
}

/* ============================================
   ЭКРАН ИНФОРМАЦИИ О КАТЕГОРИИ
   ============================================ */
.category-info-content {
    background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius);
    padding: 48px 40px;
    box-shadow: var(--shadow);
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.category-info-icon {
    font-size: 5em;
    margin-bottom: 20px;
}

.category-info-title {
    font-size: 2em;
    color: var(--text);
    margin-bottom: 16px;
    font-weight: 700;
}

.category-info-description {
    font-size: 1.1em;
    color: var(--muted);
    line-height: 1.6;
    margin-bottom: 24px;
}

.category-info-divider {
    height: 1px;
    background: linear-gradient(90deg,
        transparent,
        rgba(255, 255, 255, 0.15) 20%,
        rgba(255, 255, 255, 0.15) 80%,
        transparent);
    margin: 24px 0;
}

.category-info-stats {
    display: flex;
    justify-content: space-around;
    gap: 24px;
    margin-bottom: 32px;
}

.info-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.info-stat-label {
    font-size: 0.9em;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-stat-value {
    font-size: 1.4em;
    font-weight: 700;
    color: var(--accent);
}

.category-info-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

/* ============================================
   ЭКРАН ВИКТОРИНЫ
   ============================================ */
#quiz-screen {
    background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow);
}

.quiz-header {
    margin-bottom: 40px;
}

.progress-bar {
    width: 100%;
    height: 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 20px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    border-radius: 10px;
    transition: width var(--transition-slow);
    width: 0%;
    will-change: width;
}

.quiz-info {
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    font-size: 1.1em;
}

.question-counter {
    color: var(--muted);
}

#question-image-container {
    width: 100%;
    margin-bottom: 24px;
}

.question-image {
    width: 100%;
    max-width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: contain;
    border-radius: 16px;
    display: block;
    margin: 0 auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.question {
    font-size: 1.6em;
    margin-bottom: 32px;
    line-height: 1.5;
    color: var(--text);
    font-weight: 600;
}

.answers {
    display: grid;
    gap: 12px;
    margin-bottom: 32px;
}

.answer-btn {
    background: rgba(17, 24, 39, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 14px;
    padding: 20px 24px;
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.1em;
    color: var(--text);
    position: relative;
    overflow: hidden;
    display: flex;
    justify-content: space-between;
    align-items: center;
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: normal;
    line-height: 1.4;
    will-change: transform;
    transform: translateZ(0);
}

.answer-btn::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--accent);
    transform: scaleY(0);
    transition: var(--transition);
}

.answer-btn:hover:not(.disabled)::before {
    transform: scaleY(1);
}

.answer-btn:hover:not(.disabled) {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
    transform: translateX(4px);
}

.answer-btn.selected {
    background: rgba(0, 206, 209, 0.15);
    color: var(--accent);
    border-color: var(--accent);
    transform: translateX(4px);
}

.answer-btn.selected::before {
    transform: scaleY(1);
}

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

.quiz-controls {
    display: flex;
    gap: 12px;
    justify-content: space-between;
    width: 100%;
}

.btn {
    padding: 16px 32px;
    border: none;
    border-radius: 12px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
    min-height: 48px;
    will-change: transform;
    transform: translateZ(0);
}

.btn-primary {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.4);
    flex: 1;
    border: 1px solid rgba(255, 255, 255, 0.1);
    cursor: not-allowed;
}

.btn-primary.active {
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    color: #0f172a;
    cursor: pointer;
}

.btn-primary.active:hover {
    transform: translateY(-2px);
}

.btn-back {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-back:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--accent);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text);
    border: 1px solid rgba(255, 255, 255, 0.2);
    flex: 1;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

/* ============================================
   ЭКРАН РЕЗУЛЬТАТОВ
   ============================================ */
#results-screen {
    background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius);
    padding: 48px 40px;
    box-shadow: var(--shadow);
}



.results-header {
    margin-bottom: 40px;
    text-align: center;
}

.results-icon {
    font-size: 5em;
    align: center;
    margin-bottom: 20px;
    animation: bounceIn 0.6s ease;
    will-change: transform;
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        transform: scale(1);
    }
}

.results-title {
    font-size: 2.2em;
    color: var(--text);
    margin-bottom: 12px;
    font-weight: 700;
}

.results-message {
    font-size: 1.1em;
    color: var(--muted);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

/* КАРТОЧКИ СТАТИСТИКИ */
.results-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}

.stat-card {
    background: linear-gradient(135deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    animation: slideInUp 0.5s ease forwards;
    opacity: 0;
    will-change: transform;
    transform: translateZ(0);
}

.stat-card:nth-child(1) { animation-delay: 0.1s; }
.stat-card:nth-child(2) { animation-delay: 0.2s; }
.stat-card:nth-child(3) { animation-delay: 0.3s; }
.stat-card:nth-child(4) { animation-delay: 0.4s; }

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
}

.stat-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8em;
    flex-shrink: 0;
}

.stat-card-score .stat-card-icon {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
}

.stat-card-correct .stat-card-icon {
    background: linear-gradient(135deg, #10b981, #059669);
}

.stat-card-incorrect .stat-card-icon {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.stat-card-percentage .stat-card-icon {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.stat-card-content {
    text-align: center;
}

.stat-card-value {
    font-size: 2.2em;
    font-weight: 700;
    color: var(--text);
    line-height: 1;
    margin-bottom: 6px;
}

.stat-card-label {
    font-size: 0.9em;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ДЕТАЛЬНАЯ РАЗБИВКА */
.results-details {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 32px;
}

.results-details-title {
    font-size: 1.3em;
    color: var(--text);
    margin-bottom: 20px;
    font-weight: 600;
    text-align: center;
}

.results-questions-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-height: 500px;
    overflow-y: auto;
    padding-right: 8px;
}

.results-questions-list::-webkit-scrollbar {
    width: 6px;
}

.results-questions-list::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
}

.results-questions-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.results-questions-list::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* КАРТОЧКА ВОПРОСА */
.results-question-item {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    transition: var(--transition);
    animation: fadeInLeft 0.4s ease forwards;
    opacity: 0;
    will-change: transform;
}

.results-question-item:nth-child(1) { animation-delay: 0.05s; }
.results-question-item:nth-child(2) { animation-delay: 0.1s; }
.results-question-item:nth-child(3) { animation-delay: 0.15s; }
.results-question-item:nth-child(4) { animation-delay: 0.2s; }
.results-question-item:nth-child(5) { animation-delay: 0.25s; }
.results-question-item:nth-child(n+6) { animation-delay: 0.3s; }

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

.results-question-item:hover {
    background: rgba(255, 255, 255, 0.06);
    transform: translateX(4px);
}

.results-question-item.correct {
    border-left: 4px solid var(--ok);
}

.results-question-item.incorrect {
    border-left: 4px solid var(--err);
}

/* ШАПКА ВОПРОСА */
.question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.question-number {
    font-size: 0.85em;
    color: var(--muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.question-status {
    font-size: 0.9em;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 8px;
    white-space: nowrap;
}

.question-status.correct {
    color: var(--ok);
    background: rgba(16, 185, 129, 0.15);
}

.question-status.incorrect {
    color: var(--err);
    background: rgba(239, 68, 68, 0.15);
}

/* ТЕКСТ ВОПРОСА */
.question-text {
    font-size: 1.05em;
    color: var(--text);
    line-height: 1.5;
    margin-bottom: 16px;
    font-weight: 500;
}

/* КОНТЕЙНЕР ОТВЕТОВ */
.answers-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.answer-row {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 12px;
    align-items: baseline;
    padding: 10px 12px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
}

.answer-label {
    font-size: 0.85em;
    color: var(--muted);
    font-weight: 600;
    white-space: nowrap;
}

.answer-value {
    font-size: 0.95em;
    color: var(--text);
    line-height: 1.4;
}

.user-answer {
    border-left: 3px solid rgba(255, 255, 255, 0.2);
}

.correct-answer {
    border-left: 3px solid var(--ok);
    background: rgba(16, 185, 129, 0.08);
}

/* ПОЯСНЕНИЕ */
.explanation-row {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 12px;
    border-radius: 8px;
    background: rgba(0, 206, 209, 0.08);
    border-left: 3px solid var(--accent);
    margin-top: 4px;
}

.explanation-icon {
    font-size: 1.2em;
    flex-shrink: 0;
    margin-top: 2px;
}

.explanation-text {
    font-size: 0.9em;
    color: var(--text);
    line-height: 1.6;
    opacity: 0.9;
}

.results-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   МОДАЛЬНОЕ ОКНО ВЫХОДА
   ============================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(8px);
    z-index: 3000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.04));
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--border-radius);
    padding: 40px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-icon {
    font-size: 4em;
    margin-bottom: 20px;
}

.modal-title {
    font-size: 1.5em;
    color: var(--text);
    margin-bottom: 30px;
    font-weight: 600;
    line-height: 1.4;
}

.modal-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.modal-actions .btn {
    min-width: 100px;
}

/* ============================================
   АДАПТИВНОСТЬ
   ============================================ */

@media (min-width: 768px) {
    .categories {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (min-width: 1024px) {
    .categories {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1200px) {
    .container {
        max-width: 1100px;
    }

    .categories {
        grid-template-columns: repeat(3, 1fr); /* 3 колонки на больших экранах */
        gap: 20px;
    }
}

@media (max-width: 767px) {
    body {
        padding: 15px;
    }

    .subtitle {
        font-size: 1.5em;
    }

    .categories {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }

    .category-btn {
        padding: 28px 20px;
        min-height: 150px;
    }

    .category-btn__icon {
        font-size: 3em;
    }

    .category-btn__title {
        font-size: 1.15em;
    }

    .category-info-content {
        padding: 36px 28px;
    }

    .category-info-icon {
        font-size: 4em;
    }

    .category-info-title {
        font-size: 1.6em;
    }

    .category-info-description {
        font-size: 1em;
    }

    .category-info-stats {
        flex-direction: row;
        gap: 20px;
    }

    .category-info-actions {
        flex-direction: column;
    }

    .category-info-actions .btn {
        width: 100%;
    }

    .question {
        font-size: 1.4em;
    }

    .question-image {
        max-height: 300px;
    }

    .answer-btn {
        padding: 18px 20px;
        font-size: 1.05em;
    }

    #quiz-screen,
    #results-screen {
        padding: 32px 24px;
    }

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

    .btn {
        width: 100%;
    }

    .results-title {
        font-size: 2em;
    }

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

    .results-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }

    .stat-card {
        padding: 20px 18px;
    }

    .stat-card-icon {
        width: 52px;
        height: 52px;
        font-size: 1.7em;
    }

    .stat-card-value {
        font-size: 2em;
    }

    .sticker-img {
        max-width: 150px;
    }

    .results-icon {
        font-size: 4em;
    }

    .results-title {
        font-size: 1.8em;
    }

    .results-message {
        font-size: 1em;
    }

    .results-header {
        margin-bottom: 32px;
    }

    .results-details {
        padding: 20px;
        margin-bottom: 28px;
    }

    .results-details-title {
        font-size: 1.2em;
        margin-bottom: 16px;
    }

    .results-questions-list {
        max-height: 400px;
    }

    .results-question-item {
        padding: 16px;
    }

    /* ЦЕНТРИРОВАНИЕ ДЛЯ МОБИЛЬНЫХ */
    .question-header {
        flex-direction: column;
        align-items: center;
        gap: 8px;
        text-align: center;
    }

    .question-number {
        font-size: 0.8em;
    }

    .question-text {
        font-size: 1em;
    }

    .question-status {
        align-self: center;
        font-size: 0.85em;
    }

    .answer-row {
        grid-template-columns: 1fr;
        gap: 6px;
    }

    .answer-label {
        font-size: 0.8em;
    }

    .answer-value {
        font-size: 0.9em;
    }

    /* ЦЕНТРИРОВАНИЕ ПОЯСНЕНИЯ */
    .explanation-row {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .explanation-icon {
        font-size: 1.3em;
    }

    .explanation-text {
        font-size: 0.85em;
        text-align: center;
    }
}

@media (max-width: 480px) {
    body {
        padding: 12px;
    }

    .exit-btn {
        width: 44px;
        height: 44px;
        top: 12px;
        right: 12px;
    }

    .subtitle {
        font-size: 1.3em;
    }

    .logo {
        margin-bottom: 30px;
    }

    .categories {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .category-btn {
        padding: 24px 16px;
        min-height: 140px;
    }

    .category-btn__icon {
        font-size: 2.6em;
    }

    .category-btn__title {
        font-size: 1.05em;
    }

    .category-info-content {
        padding: 32px 24px;
    }

    .category-info-icon {
        font-size: 3.8em;
    }

    .category-info-title {
        font-size: 1.5em;
    }

    .category-info-description {
        font-size: 0.98em;
    }

    .info-stat-value {
        font-size: 1.3em;
    }

    .info-stat-label {
        font-size: 0.88em;
    }

    .category-info-stats {
        flex-direction: row;
        gap: 16px;
    }

    .category-info-actions {
        flex-direction: column;
    }

    .category-info-actions .btn {
        width: 100%;
    }

    #quiz-screen {
        padding: 24px 18px;
    }

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

    .question {
        font-size: 1.25em;
        margin-bottom: 26px;
    }

    .question-image {
        border-radius: 14px;
        max-height: 260px;
    }

    .answer-btn {
        padding: 16px 18px;
        font-size: 1em;
        min-height: 58px;
    }

    .btn {
        padding: 15px 24px;
        font-size: 1em;
        min-height: 46px;
    }

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

    #results-screen {
        padding: 32px 22px;
    }

    .results-icon {
        font-size: 4em;
    }

    .results-title {
        font-size: 1.7em;
        margin-bottom: 16px;
    }

    .results-message {
        font-size: 1.05em;
    }

    .results-header {
        margin-bottom: 28px;
    }

    .results-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        margin-bottom: 28px;
    }

    .stat-card {
        padding: 18px 14px;
    }

    .stat-card-icon {
        width: 46px;
        height: 46px;
        font-size: 1.5em;
    }

    .stat-card-value {
        font-size: 1.8em;
    }

    .stat-card-label {
        font-size: 0.8em;
    }

    .results-details {
        padding: 18px;
        margin-bottom: 24px;
    }

    .results-details-title {
        font-size: 1.15em;
        margin-bottom: 14px;
    }

    .results-questions-list {
        max-height: 350px;
    }

    .results-question-item {
        padding: 14px;
    }

    /* ЦЕНТРИРОВАНИЕ ДЛЯ МОБИЛЬНЫХ */
    .question-header {
        flex-direction: column;
        align-items: center;
        gap: 6px;
        padding-bottom: 10px;
        text-align: center;
    }

    .question-number {
        font-size: 0.75em;
    }

    .question-text {
        font-size: 0.95em;
        line-height: 1.4;
    }

    .question-status {
        font-size: 0.8em;
        padding: 4px 10px;
        align-self: center;
    }

    .answer-row {
        padding: 8px 10px;
    }

    .answer-label {
        font-size: 0.75em;
    }

    .answer-value {
        font-size: 0.85em;
    }

    /* ЦЕНТРИРОВАНИЕ ПОЯСНЕНИЯ */
    .explanation-row {
        padding: 10px;
        gap: 8px;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

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

    .explanation-text {
        font-size: 0.8em;
        text-align: center;
    }

    .results-actions {
        flex-direction: column;
        gap: 10px;
    }

    .results-actions .btn {
        width: 100%;
        padding: 14px 24px;
        font-size: 1em;
    }

    .modal-content {
        padding: 32px 22px;
    }

    .modal-icon {
        font-size: 3.7em;
    }

    .modal-title {
        font-size: 1.3em;
    }

    .modal-actions {
        flex-direction: column;
    }

    .modal-actions .btn {
        width: 100%;
    }

    .sticker-img {
        max-width: 130px;
    }
}

@media (max-width: 360px) {
    body {
        padding: 10px;
    }

    .exit-btn {
        width: 40px;
        height: 40px;
        top: 10px;
        right: 10px;
    }

    .subtitle {
        font-size: 1.15em;
    }

    .logo {
        margin-bottom: 25px;
    }

    .categories {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .category-btn {
        padding: 20px 14px;
        min-height: 120px;
    }

    .category-btn__icon {
        font-size: 2.2em;
    }

    .category-btn__title {
        font-size: 0.95em;
    }

    .category-info-content {
        padding: 28px 20px;
    }

    .category-info-icon {
        font-size: 3.5em;
    }

    .category-info-title {
        font-size: 1.4em;
    }

    .category-info-description {
        font-size: 0.95em;
    }

    .info-stat-value {
        font-size: 1.2em;
    }

    .info-stat-label {
        font-size: 0.85em;
    }

    .category-info-stats {
        flex-direction: row;
        gap: 14px;
    }

    .question {
        font-size: 1.15em;
    }

    .answer-btn {
        font-size: 0.95em;
        padding: 14px 16px;
    }

    .btn {
        font-size: 0.95em;
        padding: 13px 18px;
    }

    #results-screen {
        padding: 28px 18px;
    }

    .results-icon {
        font-size: 3.5em;
    }

    .results-title {
        font-size: 1.6em;
    }

    .results-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
        margin-bottom: 24px;
    }

    .stat-card {
        padding: 16px 12px;
    }

    .stat-card-icon {
        width: 42px;
        height: 42px;
        font-size: 1.4em;
    }

    .stat-card-value {
        font-size: 1.6em;
    }

    .stat-card-label {
        font-size: 0.75em;
    }

    .results-details {
        padding: 16px;
        margin-bottom: 20px;
    }

    .results-details-title {
        font-size: 1.1em;
        margin-bottom: 12px;
    }

    .results-questions-list {
        max-height: 300px;
    }

    .results-question-item {
        padding: 12px;
    }

    /* ЦЕНТРИРОВАНИЕ ДЛЯ МОБИЛЬНЫХ */
    .question-header {
        flex-direction: column;
        align-items: center;
        gap: 6px;
        text-align: center;
    }

    .question-number {
        font-size: 0.7em;
    }

    .question-text {
        font-size: 0.9em;
    }

    .question-status {
        font-size: 0.75em;
        padding: 3px 8px;
        align-self: center;
    }

    .answer-row {
        padding: 6px 8px;
    }

    .answer-label {
        font-size: 0.7em;
    }

    .answer-value {
        font-size: 0.8em;
    }

    /* ЦЕНТРИРОВАНИЕ ПОЯСНЕНИЯ */
    .explanation-row {
        padding: 8px;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .explanation-icon {
        font-size: 1em;
    }

    .explanation-text {
        font-size: 0.75em;
        text-align: center;
    }

    .results-actions .btn {
        padding: 12px 20px;
        font-size: 0.95em;
    }

    .sticker-img {
        max-width: 110px;
    }
}

@media (max-width: 320px) {
    .categories {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .category-btn {
        padding: 20px 16px;
        min-height: 120px;
    }

    .category-btn__icon {
        font-size: 2em;
    }

    .category-btn__title {
        font-size: 0.9em;
    }
}

@media (max-height: 600px) and (orientation: landscape) {
    body {
        padding: 10px;
    }

    .logo {
        margin-bottom: 15px;
    }

    .subtitle {
        font-size: 1.2em;
    }

    .categories {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .category-btn {
        padding: 16px 14px;
        min-height: 110px;
    }

    .category-btn__icon {
        font-size: 2.2em;
    }

    .category-btn__title {
        font-size: 1em;
    }

    .category-info-content {
        padding: 24px 20px;
    }

    .category-info-icon {
        font-size: 3em;
    }

    .category-info-title {
        font-size: 1.3em;
        margin-bottom: 10px;
    }

    .category-info-description {
        font-size: 0.9em;
        margin-bottom: 16px;
    }

    .category-info-stats {
        flex-direction: row;
        margin-bottom: 20px;
        gap: 20px;
    }

    #quiz-screen {
        padding: 20px;
    }

    .quiz-header {
        margin-bottom: 20px;
    }

    .question {
        font-size: 1.1em;
        margin-bottom: 20px;
    }

    .question-image {
        max-height: 200px;
    }

    .answers {
        margin-bottom: 20px;
    }

    .answer-btn {
        padding: 12px 16px;
    }

    #results-screen {
        padding: 30px 20px;
    }

    .results-icon {
        font-size: 3.5em;
        margin-bottom: 16px;
    }

    .results-title {
        font-size: 1.4em;
        margin-bottom: 20px;
    }

    .results-stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
        margin-bottom: 20px;
    }

    .stat-card {
        padding: 12px 10px;
    }

    .stat-card-icon {
        width: 36px;
        height: 36px;
        font-size: 1.2em;
    }

    .stat-card-value {
        font-size: 1.4em;
    }

    .stat-card-label {
        font-size: 0.7em;
    }

    .results-details {
        padding: 16px;
        margin-bottom: 16px;
    }

    .results-details-title {
        font-size: 1em;
        margin-bottom: 10px;
    }

    .results-questions-list {
        max-height: 250px;
    }

    .results-question-item {
        padding: 10px;
    }

    /* ЦЕНТРИРОВАНИЕ ДЛЯ ЛАНДШАФТА */
    .question-header {
        align-items: center;
        text-align: center;
    }

    .question-status {
        align-self: center;
    }

    .explanation-row {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .explanation-text {
        text-align: center;
    }

    .results-actions {
        flex-direction: row;
        gap: 10px;
    }

    .results-actions .btn {
        flex: 1;
        padding: 10px 16px;
        font-size: 0.9em;
    }

    .sticker-img {
        max-width: 90px;
    }
}

button, .category-btn, .answer-btn {
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.question, .answer-btn span {
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

html, body {
    overflow-x: hidden;
    max-width: 100%;
}

.category-btn,
.answer-btn,
.btn {
    will-change: transform;
}

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

/* ============================================
   ДОПОЛНЕНИЯ К СУЩЕСТВУЮЩИМ СТИЛЯМ
   ============================================ */

/* Уровень сложности под категорией */
.category-btn__difficulty {
    font-size: 0.85em;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 500;
    position: relative;
    z-index: 1;
    margin-top: 4px;
}


/* Возраст в круге */
.info-stat-age {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #0f172a;
    font-weight: 700;
    font-size: 1.2em;
}

/* Обертка для изображения с placeholder */
.question-image-wrapper {
    position: relative;
    width: 100%;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Placeholder для изображения */
.question-image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    transition: opacity 0.3s ease;
}

.placeholder-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.placeholder-error {
    font-size: 3em;
    opacity: 0.3;
}

/* Плавное появление изображения */
.question-image {
    transition: opacity 0.5s ease;
    position: relative;
    z-index: 1;
}

/* Адаптация для мобильных */
@media (max-width: 767px) {
    .category-btn__difficulty {
        font-size: 0.8em;
    }

    .info-stat-age {
        width: 52px;
        height: 52px;
        font-size: 1.1em;
    }

    .question-image-wrapper {
        min-height: 150px;
    }
}

@media (max-width: 480px) {
    .category-btn__difficulty {
        font-size: 0.75em;
    }

    .info-stat-age {
        width: 48px;
        height: 48px;
        font-size: 1em;
    }

    .question-image-wrapper {
        min-height: 80px;
    }
}

/* ============================================
   Черта, сложность, круги
   ============================================ */

/* Разделитель под названием категории */
.category-btn__divider {
    height: 1px;
    width: 80%;
    background: linear-gradient(90deg,
        transparent,
        rgba(255, 255, 255, 0.2) 20%,
        rgba(255, 255, 255, 0.2) 80%,
        transparent);
    margin: 8px 0 4px 0;
    position: relative;
    z-index: 1;
}

/* Круги для возраста и количества вопросов */
.info-stat-circle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(45, 62, 80, 0.8);
    color: #ffffff;
    font-weight: 700;
    font-size: 1.3em;
    border: 2px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* ============================================
   АДАПТИВНОСТЬ ДЛЯ НОВЫХ ЭЛЕМЕНТОВ
   ============================================ */

@media (max-width: 767px) {
    .category-btn__difficulty {
        font-size: 0.88em;
    }

    .category-btn__divider {
        width: 75%;
    }

    .info-stat-circle {
        width: 58px;
        height: 58px;
        font-size: 1.2em;
    }
}

@media (max-width: 480px) {
    .category-btn__difficulty {
        font-size: 0.82em;
    }

    .category-btn__divider {
        width: 70%;
    }

    .info-stat-circle {
        width: 54px;
        height: 54px;
        font-size: 1.15em;
    }
}

@media (max-width: 360px) {
    .category-btn__difficulty {
        font-size: 0.75em;
    }

    .category-btn__divider {
        width: 65%;
    }

    .info-stat-circle {
        width: 50px;
        height: 50px;
        font-size: 1.1em;
    }
}

@media (max-width: 320px) {
    .category-btn__difficulty {
        font-size: 0.7em;
    }
}

@media (max-height: 600px) and (orientation: landscape) {
    .category-btn__difficulty {
        font-size: 0.8em;
    }

    .category-btn__divider {
        margin: 6px 0 3px 0;
    }

    .info-stat-circle {
        width: 48px;
        height: 48px;
        font-size: 1em;
    }
}

/* ============================================
   Заголовок "ВИКТОРИНЫ"
   ============================================ */

.logo {
    text-align: center;
    margin-bottom: 50px;
    margin-top: 30px;
}

.main-title {
    font-size: 4.5em;
    font-weight: 800;
    text-align: center;
    margin-bottom: 24px;
    letter-spacing: 3px;
    font-family: 'Arial Rounded MT Bold', 'Segoe UI', system-ui, sans-serif;
    line-height: 1.2;
    background: linear-gradient(
        to bottom,
        var(--text) 50%,
        rgba(70, 130, 180, 0.6) 100%
    );
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.subtitle {
    font-size: 1.5em;
    font-weight: 500;
    opacity: 0.9;
    background: linear-gradient(
        to bottom,
        var(--text) 50%,
        rgba(70, 130, 180, 0.6) 100%
    );
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}

/* ============================================
   АДАПТИВНОСТЬ ДЛЯ ЗАГОЛОВКА
   ============================================ */

@media (max-width: 768px) {
    .logo {
        margin-bottom: 40px;
        margin-top: 24px;
    }

    .main-title {
        font-size: 3.5em;
        letter-spacing: 2px;
    }

    .subtitle {
        font-size: 1.15em;
    }
}

@media (max-width: 480px) {
    .logo {
        margin-bottom: 35px;
        margin-top: 20px;
    }

    .main-title {
        font-size: 2.8em;
        letter-spacing: 1px;
    }

    .subtitle {
        font-size: 1.05em;
    }
}

@media (max-width: 360px) {
    .logo {
        margin-bottom: 30px;
        margin-top: 16px;
    }

    .main-title {
        font-size: 2.2em;
        letter-spacing: 0.5px;
    }

    .subtitle {
        font-size: 1em;
    }
}

@media (max-width: 320px) {
    .main-title {
        font-size: 1.9em;
    }

    .subtitle {
        font-size: 0.95em;
    }
}

@media (max-height: 600px) and (orientation: landscape) {
    .logo {
        margin-top: 15px;
        margin-bottom: 25px;
    }

    .main-title {
        font-size: 2.5em;
        letter-spacing: 1px;
        margin-bottom: 14px;
    }

    .subtitle {
        font-size: 1em;
    }
}