@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&family=Raleway:wght@300;400;600&display=swap');

:root {
    --primary-color: #F473B1; 
    --accent-color: #A0A0A0; 
    --text-color: #4A3E3C; 
    --background-color: #FFF0F5; 
    --card-bg: #FFFFFF; 
    --border-color: #FFD1DD; 
    
    
    --primary-hover-color: #E05F9A; 
    --accent-hover-color: #8A8A8A; 
    --text-light-color: #777777; 
    --input-bg-color: #F8F8F8; 
    --success-color: #8CC08C; 
    --error-color: #E74C3C; 

    
    --shadow-base: rgba(0, 0, 0, 0.08);
    --shadow-hover: rgba(0, 0, 0, 0.15);
    --shadow-strong: rgba(0, 0, 0, 0.25);
    --shadow-medium: rgba(0, 0, 0, 0.12);
    --shadow-extra-small: rgba(0, 0, 0, 0.05);

    
    --link-color: var(--primary-color);
    --link-hover-color: var(--accent-color);
    --button-bg: var(--primary-color);
    --button-text: #fff;
    --button-hover-bg: var(--primary-hover-color);
    --button-active-bg: var(--primary-color);
    --button-active-text: #fff;
    --button-active-border: var(--primary-color);
}


.dark-theme {
    --primary-color: #F473B1; 
    --accent-color: #888888; 
    --text-color: #F8DAE6; 
    --background-color: #2C2C2C; 
    --card-bg: #3A3A3A; 
    --border-color: #555555; 

    --primary-hover-color: #E05F9A;
    --accent-hover-color: #777777;
    --text-light-color: #C0C0C0; 
    --input-bg-color: #444444; 
    --success-color: #6AA86A; 
    --error-color: #C0392B; 

    --shadow-base: rgba(255, 255, 255, 0.08); 
    --shadow-hover: rgba(255, 255, 255, 0.15);
    --shadow-strong: rgba(255, 255, 255, 0.25);
    --shadow-medium: rgba(255, 255, 255, 0.12);
    --shadow-extra-small: rgba(255, 255, 255, 0.05);
    
    --link-color: var(--accent-color);
    --link-hover-color: var(--primary-color);
    --button-bg: var(--primary-color);
    --button-text: #fff;
    --button-hover-bg: var(--primary-hover-color);
    --button-active-bg: var(--primary-color);
    --button-active-text: #fff;
    --button-active-border: var(--primary-color);
}

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

body {
    font-family: 'Raleway', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    transition: background-color 0.4s ease, color 0.4s ease;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

html {
    scroll-behavior: smooth;
}

h1, h2, h3, h4 {
    font-family: 'Playfair Display', serif;
    color: var(--text-color);
    margin-bottom: 0.8em;
    line-height: 1.2;
}

h1 { font-size: 3.2em; }
h2 { font-size: 2.5em; }
h3 { font-size: 1.8em; }
h4 { font-size: 1.4em; }

p {
    margin-bottom: 1em;
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--link-hover-color);
}

ul {
    list-style: none;
}

button {
    padding: 12px 25px;
    font-size: 1em;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    background-color: var(--button-bg);
    color: var(--button-text);
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;
    outline: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

button:hover {
    background-color: var(--button-hover-bg);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px var(--shadow-hover);
}

button:active {
    transform: translateY(0);
    box-shadow: none;
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mb-20 { margin-bottom: 20px; }
.mt-20 { margin-top: 20px; }
.p-20 { padding: 20px; }

.loader {
    position: fixed;
    z-index: 9999;
    width: 100%;
    height: 100%;
    background: var(--background-color);
    top: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease;
    opacity: 1;
}

.loader.hidden {
    opacity: 0;
    pointer-events: none;
}

.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.loader-spinner {
    border: 6px solid var(--border-color);
    border-top: 6px solid var(--primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin-bottom: 15px;
}

.loader-content p {
    font-size: 1.2em;
    color: var(--text-color);
}

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

.floating-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    opacity: 0.1; 
    background-image: radial-gradient(circle, var(--primary-color) 1px, transparent 1px),
                      radial-gradient(circle, var(--accent-color) 1px, transparent 1px);
    background-size: 40px 40px; 
    background-position: 0 0, 20px 20px; 
    animation: floatBackground 60s linear infinite;
}

@keyframes floatBackground {
    from { background-position: 0 0, 20px 20px; }
    to { background-position: 100px 100px, 120px 120px; }
}


.video-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 20px auto;
    max-width: 100%;
}

.video-container video {
    width: 100%;
    max-width: 800px;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px var(--shadow-base);
}


section {
    padding: 40px 0;
    margin-bottom: 30px;
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 5px 15px var(--shadow-base);
    transition: background-color 0.4s ease, box-shadow 0.4s ease;
}

@media (max-width: 768px) {
    h1 { font-size: 2.5em; }
    h2 { font-size: 2em; }
    h3 { font-size: 1.5em; }
    button {
        padding: 10px 20px;
        font-size: 0.9em;
    }
    .container {
        padding: 0 15px;
    }
    section {
        padding: 20px 0;
        margin-bottom: 20px;
    }
}

.art-container {
    padding: 0;
    gap: 30px;
}

.hero-section {
    text-align: center;
    padding: 40px 20px;
    background-color: var(--background-color);
    box-shadow: none;
    border-radius: 0;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-section h2 {
    font-size: 3.5em;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.hero-section p {
    font-size: 1.2em;
    color: var(--text-color);
    max-width: 800px;
    margin: 0 auto;
}

.story-of-art {
    padding: 30px 20px;
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--background-color);
    border-radius: 0px;
}

.story-of-art h3 {
    font-size: 2.5em;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.story-of-art h4 {
    font-size: 2.5em;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.story-of-art p.mb-20 {
    font-size: 1.1em;
    color: var(--text-color);
}


.art-timeline-section {
    padding: 30px 20px;
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 5px 15px var(--shadow-base);
}

.art-timeline-section h3 {
    font-size: 2.5em;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.art-timeline-section p.mb-20 {
    font-size: 1.1em;
    color: var(--text-color);
}

.art-timeline-navigation {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
}

.art-timeline-navigation button {
    padding: 12px 25px;
    font-size: 1em;
    font-weight: 600;
    border: 1px solid var(--primary-color);
    border-radius: 30px;
    background-color: transparent;
    color: var(--primary-color);
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.art-timeline-navigation button:hover {
    background-color: var(--primary-color);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 4px 10px var(--shadow-hover);
}

.art-timeline-navigation button.active {
    background-color: var(--primary-color);
    color: #fff;
    box-shadow: 0 4px 10px var(--shadow-hover);
}

.art-timeline-content {
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
}

.art-timeline-content .timeline-placeholder p {
    font-size: 1.3em;
    color: #666;
    font-style: italic;
}

.card-item img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 15px;
    object-fit: cover;
}

.image-pair-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin: 20px auto;
    width: 100%;
    max-width: 800px;
}

.image-pair-container .card-item {
    flex: 1;
    min-width: 280px;
    max-width: 45%;
    text-align: center;
    padding: 15px;
   
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.image-pair-container .card-item img {
    max-width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 10px;
}

@media (max-width: 768px) {
    .image-pair-container {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    .image-pair-container .card-item {
        max-width: 90%;
        width: 100%;
        min-width: unset;
    }
    .image-pair-container .card-item img {
        height: 180px;
    }
}

.story-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 4px 12px var(--shadow-base);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.story-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--shadow-hover);
}

.story-card-title {
    color: var(--accent-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.story-card-description {
    line-height: 1.6;
    font-size: 1.1rem;
}

.art-grid {
    display: grid;
    gap: 20px;
    margin: 20px auto;
    width: 100%;
    max-width: 800px;
    padding: 0 15px;
}

.art-item {
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 5px 15px var(--shadow-base);
    padding: 15px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.art-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--shadow-hover);
}

.art-item img {
    max-width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 10px;
}

.art-item p {
    font-size: 1em;
    color: var(--text-color);
    margin-top: auto;
    padding-top: 5px;
}

.dark-theme .art-item {
    background-color: var(--card-bg);
    box-shadow: 0 5px 15px var(--shadow-base);
}

.dark-theme .art-item:hover {
    box-shadow: 0 8px 20px var(--shadow-hover);
}

.dark-theme .art-item p {
    color: var(--text-color);
}

@media (max-width: 768px) {
    .art-grid {
       
        grid-template-columns: 1fr !important;
        gap: 15px;
    }
    .art-item img {
        height: 180px;
    }
}

@media (max-width: 480px) {
    .art-grid {
        max-width: 100%;
        padding: 0 10px;
    }
    .art-item {
        padding: 10px;
    }
    .art-item img {
        height: 150px;
    }
}

.interactive-art-section {
   
    padding: 30px 20px;
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--background-color);
    box-shadow: none;
    border-radius: 0;
}

.interactive-art-section h3 {
    font-size: 2.5em;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.interactive-art-section p.mb-20 {
    font-size: 1.1em;
    color: var(--text-color);
}

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

.quiz-card, .memory-game-card {
    padding: 30px;
    text-align: center;
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 5px 15px var(--shadow-base);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
   
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.quiz-card:hover, .memory-game-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--shadow-hover);
}

.quiz-card h3, .memory-game-card h3 {
    font-size: 1.8em;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.quiz-card p, .memory-game-card p {
    font-size: 1em;
    color: var(--text-color);
    margin-bottom: 20px;
}


#art-quiz-question {
    font-size: 1.3em;
    margin-bottom: 20px;
    color: var(--text-color);
}

#score-display {
    font-weight: 600;
    margin-top: 10px;
    color: var(--text-color);
}

.quiz-state-screen {
    width: 100%;
   
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.quiz-option-btn {
    padding: 12px 25px;
    font-size: 1.1em;
    font-weight: 600;
    border: 1px solid var(--primary-color);
    border-radius: 30px;
    background-color: transparent;
    color: var(--primary-color);
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;
    margin: 8px auto;
    width: 100%;
    max-width: 350px;
    text-align: center;
    display: block;
    box-sizing: border-box;
}

.quiz-option-btn:hover:not(:disabled) {
    background-color: var(--primary-color);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 4px 10px var(--shadow-hover);
}

.quiz-option-btn:disabled {
    cursor: not-allowed;
    opacity: 0.7;
   
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-color);
}


.quiz-option-btn.correct-answer {
    background-color: #4CAF50;
    color: white;
    border-color: #4CAF50;
    font-weight: bold;
    box-shadow: 0 4px 10px rgba(76, 175, 80, 0.4);
    transform: scale(1.02);
}


.quiz-option-btn.wrong-answer {
    background-color: #F44336;
    color: white;
    border-color: #F44336;
    font-weight: bold;
    box-shadow: 0 4px 10px rgba(244, 67, 54, 0.4);
    transform: scale(1.02);
}


.quiz-feedback {
    font-size: 1.2em;
    font-weight: 600;
    margin-top: 20px;
    text-align: center;
    min-height: 1.5em;
    color: var(--primary-color);
}
.quiz-explanation {
    font-size: 0.95em;
    margin-top: 10px;
    text-align: center;
    color: var(--text-color);
    min-height: 2em;
}


.quiz-options {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.quiz-navigation {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    margin-top: 25px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    width: 100%;
}

.quiz-navigation p {
    font-size: 1em;
    font-weight: 500;
    color: var(--text-color);
    margin: 5px 10px;
}

.quiz-navigation #quiz-progress {
    width: 100%;
    height: 8px;
    margin: 10px 0;
    -webkit-appearance: none;
    appearance: none;
    border-radius: 5px;
    overflow: hidden;
}


.quiz-navigation #quiz-progress::-webkit-progress-bar {
    background-color: var(--border-color);
    border-radius: 5px;
}


.quiz-navigation #quiz-progress::-webkit-progress-value {
    background-color: var(--primary-color);
    border-radius: 5px;
    transition: width 0.5s ease-in-out;
}

.quiz-navigation #quiz-progress::-moz-progress-bar {
    background-color: var(--primary-color);
    border-radius: 5px;
}


.quiz-navigation #next-btn {
    padding: 10px 25px;
    font-size: 1em;
    margin-left: auto;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.quiz-navigation #next-btn:hover {
    background-color: var(--button-hover-bg);
}



#quiz-start-screen h3 {
    font-size: 2.5em;
    color: var(--primary-color);
    margin-bottom: 20px;
}

#quiz-start-screen p {
    font-size: 1.2em;
    color: var(--text-color);
    margin-bottom: 30px;
}

#quiz-start-screen .primary-btn {
    padding: 15px 40px;
    font-size: 1.3em;
    border-radius: 35px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

#quiz-start-screen .primary-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--shadow-hover);
    background-color: var(--button-hover-bg);
}


.dark-theme #quiz-start-screen h3 {
    color: var(--primary-color);
}
.dark-theme #quiz-start-screen p {
    color: var(--text-color);
}
.dark-theme #quiz-start-screen .primary-btn {
    background-color: var(--accent-color);
}
.dark-theme #quiz-start-screen .primary-btn:hover {
    background-color: var(--button-hover-bg);
}

#quiz-results-screen {
    animation: fadeIn 0.5s ease-out;
}

#quiz-results-screen .quiz-results-title {
    font-size: 2.8em;
    color: var(--primary-color);
    margin-bottom: 20px;
    font-weight: 700;
}

#quiz-results-screen .quiz-final-score {
    font-size: 1.6em;
    color: var(--text-color);
    margin-bottom: 15px;
}

#quiz-results-screen .highlight-score {
    font-weight: 800;
    color: var(--accent-color);
    font-size: 1.2em;
}

#quiz-results-screen .quiz-summary-message {
    font-style: italic;
    font-size: 1.2em;
    color: var(--text-color);
    margin-top: 25px;
    margin-bottom: 30px;
    line-height: 1.5;
}

#quiz-results-screen .quiz-result-buttons {
    margin-top: 20px;
}

#quiz-results-screen .btn {
    padding: 12px 30px;
    font-size: 1.1em;
    font-weight: 600;
    border-radius: 30px;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;
    margin: 15px 10px;
    display: inline-block;
}

#quiz-results-screen .primary-btn {
    background-color: var(--primary-color);
    color: white;
    border: 1px solid var(--primary-color);
}

#quiz-results-screen .primary-btn:hover {
    background-color: var(--button-hover-bg);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 4px 10px var(--shadow-hover);
}

#quiz-results-screen .secondary-btn {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

#quiz-results-screen .secondary-btn:hover {
    background-color: var(--primary-color);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 4px 10px var(--shadow-hover);
}


.dark-theme #quiz-results-screen .quiz-results-title {
    color: var(--primary-color);
}
.dark-theme #quiz-results-screen .quiz-final-score,
.dark-theme #quiz-results-screen .quiz-summary-message {
    color: var(--text-color);
}
.dark-theme #quiz-results-screen .highlight-score {
    color: var(--accent-color);
}
.dark-theme #quiz-results-screen .primary-btn {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}
.dark-theme #quiz-results-screen .primary-btn:hover {
    background-color: var(--button-hover-bg);
}
.dark-theme #quiz-results-screen .secondary-btn {
    color: var(--accent-color);
    border-color: var(--accent-color);
}
.dark-theme #quiz-results-screen .secondary-btn:hover {
    background-color: var(--accent-color);
}


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

.art-facts-section {
   
    padding: 30px 20px;
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--background-color);
    box-shadow: none;
    border-radius: 0;
}

.art-facts-section h3{
    font-size: 2.5em;
    color: var(--primary-color);
    margin-bottom: 20px;
}


.fact-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 5px 15px var(--shadow-base);
    padding: 25px;
    text-align: center;
    max-width: 700px;
    margin: 20px auto;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 150px;
}

.fact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--shadow-hover);
}

.fact-card .fact-header {
    font-size: 1.3em;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.fact-card .fact-header .emoji {
    font-size: 1.2em;
}

.fact-card .fact-body {
    font-weight: 600;
    font-size: 1.1em;
    margin-bottom: 8px;
    color: var(--text-color);
}

.fact-card .fact-detail {
    font-size: 0.9em;
    color: var(--text-color);
    opacity: 0.7;
}


.dark-theme .fact-card {
    background-color: var(--card-bg);
    box-shadow: 0 5px 15px var(--shadow-base);
}

.dark-theme .fact-card:hover {
    box-shadow: 0 8px 20px var(--shadow-hover);
}

.dark-theme .fact-card .fact-header {
    color: var(--accent-color);
}

.dark-theme .fact-card .fact-body {
    color: var(--text-color);
}

.dark-theme .fact-card .fact-detail {
    color: var(--text-color);
    opacity: 0.7;
}



@media (max-width: 992px) {
    .hero-section h2 {
        font-size: 3em;
    }
    .art-timeline-section, .interactive-art-section, .art-facts-section, .story-of-art {
       
        padding: 25px 20px;
    }
    .art-timeline-navigation {
        gap: 10px;
    }
    .art-timeline-navigation button {
        padding: 10px 20px;
        font-size: 0.9em;
    }
    .game-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    .game-board {
        grid-template-columns: repeat(3, 1fr);
        max-width: 300px;
    }
    .card {
        width: 80px;
        height: 80px;
        font-size: 1.8em;
    }
   
    .quiz-option-btn {
        max-width: 90%;
    }
   
    .fact-card {
        min-height: 120px;
        padding: 20px;
    }
}

@media (max-width: 768px) {
    .art-container {
       
        gap: 20px;
    }
    .hero-section {
       
        padding: 25px 15px;
    }
    .hero-section h2 {
        font-size: 2.5em;
    }

    .art-timeline-section, .interactive-art-section, .art-facts-section, .story-of-art {
       
        padding: 15px 15px;
    }
    .art-timeline-section h3, .interactive-art-section h3, .art-facts-section h3 , .story-of-art h3{
        font-size: 2em;
    }

    .game-grid {
        grid-template-columns: 1fr;
    }
    .quiz-card, .memory-game-card {
        padding: 25px;
        min-height: 350px;
    }
    .quiz-card h3, .memory-game-card h3 {
        font-size: 1.5em;
    }
    .game-board {
        grid-template-columns: repeat(3, 1fr);
        max-width: 280px;
    }
    .card {
        width: 70px;
        height: 70px;
        font-size: 1.5em;
    }
    #art-fact {
        padding: 20px;
        font-size: 0.95em;
        margin: 20px auto;
        min-height: 100px;
    }
   
    .quiz-navigation {
        flex-direction: column;
        align-items: center;
    }
    .quiz-navigation p,
    .quiz-navigation #next-btn {
        margin: 8px 0;
    }
    .quiz-navigation #next-btn {
        margin-left: unset;
    }

   
    #quiz-results-screen .quiz-results-title { font-size: 2.2em; }
    #quiz-results-screen .quiz-final-score { font-size: 1.4em; }
    #quiz-results-screen .quiz-summary-message { font-size: 1em; }
}