/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Kids-friendly Color Palette */
    --primary-blue: #4A90E2;
    --bright-blue: #5BA3F5;
    --light-blue: #E8F4FD;
    --accent-orange: #FF8C42;
    --accent-yellow: #FFD93D;
    --accent-green: #6BCF7F;
    --accent-purple: #A569BD;
    --accent-pink: #FF6B9D;
    --warm-red: #FF5757;
    
    /* Text Colors */
    --text-dark: #2C3E50;
    --text-medium: #5D6D7E;
    --text-light: #85929E;
    --text-white: #FFFFFF;
    
    /* Background Colors */
    
    --bg-light: #F8FBFF;
    --bg-white: #FFFFFF;
    --bg-card: #FFFFFF;
    
    /* Shadow and Effects */
    --shadow-light: 0 2px 8px rgba(74, 144, 226, 0.1);
    --shadow-medium: 0 4px 16px rgba(74, 144, 226, 0.15);
    --shadow-heavy: 0 8px 32px rgba(74, 144, 226, 0.2);
    --border-radius: 16px;
    --border-radius-small: 8px;
    
    /* Fonts */
    --font-primary: 'Tajawal', 'Arial', sans-serif;
    --font-decorative: 'Amiri', serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

body {
    font-family: var(--font-primary);
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    min-height: 100vh;
    color: var(--text-dark);
    line-height: 1.6;
    direction: rtl;
    overflow-x: hidden;
}

/* Animated Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

/* Header Styles */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 3px solid var(--accent-yellow);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-medium);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    gap: 20px;
}

.nav-icons, .header-actions {
    display: flex;
    gap: 8px;
}

.icon-btn {
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-yellow));
    color: var(--text-white);
    font-size: 20px;
    cursor: pointer;
    transition: all var(--transition-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-light);
    position: relative;
    overflow: hidden;
}

.icon-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.icon-btn:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-medium);
}

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

.icon-btn:active {
    transform: translateY(0) scale(0.95);
}

/* Logo Cluster */
.logo-cluster {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    font-size: 24px;
}

.logo-pebble {
    color: var(--primary-blue);
    text-shadow: 2px 2px 4px rgba(74, 144, 226, 0.3);
}

.logo-go {
    color: var(--accent-orange);
    text-shadow: 2px 2px 4px rgba(255, 140, 66, 0.3);
}

/* Breadcrumb Navigation */
.breadcrumb {
    flex: 1;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 8px;
    flex-wrap: wrap;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: var(--light-blue);
    border-radius: var(--border-radius-small);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-medium);
    transition: all var(--transition-fast);
}

.breadcrumb-item:hover {
    background: var(--accent-yellow);
    color: var(--text-dark);
    transform: translateY(-1px);
}

.breadcrumb-item.active {
    background: var(--accent-green);
    color: var(--text-white);
    font-weight: 700;
}

.breadcrumb-icon {
    font-size: 16px;
}

.slider {
    flex: 1 1 360px;
    position: relative;
    overflow: hidden;
    border-radius: 1rem;
    aspect-ratio: 3/4;  /* يمكنك تغيير هذا للتحكم في الأبعاد */
    width: 300px;       /* تحكم في العرض - قلل هذا الرقم لتصغير الحجم */
    height: 400px;      /* تحكم في الارتفاع - قلل هذا الرقم لتصغير الحجم */
}

.slides { 
    height: 100%; 
    width: 100%;
}

.slides img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;       /* تغيير من max-height إلى height للتوحيد */
    border-radius: 10px;
    object-fit: contain; /* تغيير من cover إلى contain لإظهار الصورة كاملة */
    opacity: 0;
    transition: opacity .4s ease;
    z-index: 1;
}

.slides img.active { 
    opacity: 1; 
}

.slides iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;       /* توحيد الارتفاع مع الصور */
    border-radius: 10px;
    border: 0;
    opacity: 0;
    transition: opacity .4s ease;
    z-index: 1;
}

.slides .active { 
    opacity: 1; 
}

/* قواعد التحكم في التفاعل */
.slides > * { 
    pointer-events: none; 
    z-index: 1; 
}

.slides > *.active { 
    pointer-events: auto; 
    z-index: 2; 
}

/* Tabs Container */
.tabs-container {
    display: flex;
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--light-blue);
    padding: 0 20px;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.tabs-container::-webkit-scrollbar {
    display: none;
}

.tabs-strip {
    display: flex;
    gap: 4px;
    max-width: 1200px;
    margin: 0 auto;
    min-width: max-content;
}


.tab {
    padding: 16px 24px;
    border: none;
    background: transparent;
    color: var(--text-medium);
    font-size: 20px;
    font-weight: 600;
    font-family: var(--font-primary);
    cursor: pointer;
    border-radius: 15px;
    transition: all var(--transition-medium);
    position: relative;
    white-space: nowrap;
    min-width: 320px;
    text-align: center;
}

.tab::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-orange), var(--accent-yellow));
    border-radius: 2px;
    transition: all var(--transition-medium);
    transform: translateX(-50%);
}

.tab:hover {
    background: var(--light-blue);
    color: var(--primary-blue);
    transform: translateY(-2px);
}

.tab:hover::before {
    width: 80%;
}

.tab.active {
    background: linear-gradient(135deg, var(--accent-green), var(--bright-blue));
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.tab.active::before {
    width: 100%;
    background: var(--accent-yellow);
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 20px;
}

.tab-content {
    display: none;
    animation: fadeInUp 0.5s ease;
}

.tab-content.active {
    display: block;
}

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

.content-container {
    display: flex;
    grid-template-columns: 1fr 400px;
    gap: 40px;
    align-items: start;
}

#tab-facts .content-container,
#tab-read-more .content-container,
#tab-activities .content-container {
    display: block !important; 
  }

  .image-container {
    float: left; /* or left for RTL layout */
    max-width: 40%;
    text-align: center;
    margin: 30px;
  }
  
  .image-wrapper img {
    width: 100%;
    border-radius: 8px;
  }
  
  
  
.enlarge-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    font-size: 18px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.8);
}

.image-container:hover .enlarge-btn {
    opacity: 1;
    transform: scale(1);
}

.enlarge-btn:hover {
    background: var(--accent-yellow);
    transform: scale(1.1);
}
  

@media (max-width: 768px) {
    .content-container {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* Content Text */
.content-text {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 32px;
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
    text-align: justify;
    margin-right: 20px;

}

.content-text::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, var(--accent-orange), var(--accent-yellow), var(--accent-green), var(--accent-purple));
}

/* Audio Controls */
.audio-controls {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding: 16px;
    background: linear-gradient(135deg, var(--light-blue), rgba(255, 255, 255, 0.8));
    border-radius: var(--border-radius);
    border: 2px solid var(--accent-yellow);
}

.play-audio-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border: none;
    border-radius: 25px;
    background: linear-gradient(135deg, var(--accent-green), var(--bright-blue));
    color: var(--text-white);
    font-size: 16px;
    font-weight: 600;
    font-family: var(--font-primary);
    cursor: pointer;
    transition: all var(--transition-medium);
    box-shadow: var(--shadow-light);
    position: relative;
    overflow: hidden;
}

.play-audio-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.play-audio-btn:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-medium);
}

.play-audio-btn:hover::before {
    left: 100%;
}

.play-audio-btn.playing {
    background: linear-gradient(135deg, var(--warm-red), var(--accent-orange));
    animation: pulse 1.5s ease-in-out infinite;
}

/* Drag and Drop Styles */
#DragDropQuiz-container {
    font-family: 'Arial', sans-serif;
    max-width: 1400px;
    margin: 20px auto;
    padding: 20px;
    background-color: #f9f9f9;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  }
  
  #tab-activities .word-bank {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background-color: #1079b6;
  }
  
  #tab-activities .word-bank td {
    border: 2px solid #ddd;
    padding: 12px;
    text-align: center;
    font-size: 30px;
    cursor: grab;
    transition: all 0.3s;
  }
  
  #tab-activities .word-bank td:hover {
    background-color: #f0f0f0;
    transform: scale(1.05);
  }
  
  .sentences {
    margin-top: 30px;
  }
  
  #tab-activities .sentence {
    font-size: 30px;
    margin-bottom: 15px;
    padding: 15px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  }
  
  #tab-activities .blank {
    display: inline-block;
    min-width: 100px;
    height: 50px;
    border-bottom: 3px dotted #000000;
    margin: 0 5px;
    vertical-align: middle;
    text-align: center;
  }
  
  .correct {
    background-color: #d4edda;
    border-bottom: 1px solid #28a745;
  }
  
  .incorrect {
    background-color: #f8d7da;
    border-bottom: 1px solid #dc3545;
    animation: shake 0.5s;
  }

  .reset-btn {
    background-color: #1079b6;
    color: white;
    font-size: 25px;
    border: none;
    padding: 5px 15px;
    border-radius: 5px;
    cursor: pointer;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.audio-icon {
    font-size: 20px;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-4px); }
    60% { transform: translateY(-2px); }
}

.audio-progress {
    flex: 1;
    height: 8px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-yellow), var(--accent-orange));
    border-radius: 4px;
    width: 0%;
    transition: width 0.1s ease;
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 20px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6));
    animation: shimmer 1.5s ease-in-out infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-20px); }
    100% { transform: translateX(20px); }
}

/* Text Content */
.text-content {
    font-size: 20px;
    line-height: 1.8;
    color: var(--text-dark);
}

.lead-paragraph {
    font-size: 26px;
    font-weight: 500;
    margin-bottom: 20px;
}

.sentence {
    transition: all var(--transition-medium);
    padding: 2px 4px;
    border-radius: 4px;
    position: relative;
}

.sentence.highlighted {
    background: linear-gradient(135deg, var(--accent-yellow), rgba(255, 217, 61, 0.3));
    color: var(--text-dark);
    font-weight: 600;
    transform: scale(1.02);
    box-shadow: 0 2px 8px rgba(255, 217, 61, 0.4);
    animation: highlight-glow 0.5s ease;
}

@keyframes highlight-glow {
    0% { box-shadow: 0 0 0 rgba(255, 217, 61, 0); }
    50% { box-shadow: 0 0 20px rgba(255, 217, 61, 0.6); }
    100% { box-shadow: 0 2px 8px rgba(255, 217, 61, 0.4); }
}

/* Vocabulary Words */
.vocab {
    color: var(--primary-blue);
    font-weight: 700;
    cursor: pointer;
    text-decoration-color: var(--accent-yellow);
    text-decoration-thickness: 3px;
    text-underline-offset: 2px;
    transition: all var(--transition-fast);
    padding: 2px 4px;
    border-radius: 4px;
    position: relative;
}

.vocab::before {
    content: '📖';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    opacity: 0;
    transition: all var(--transition-fast);
}

.vocab:hover {
    background: linear-gradient(135deg, var(--light-blue), rgba(255, 255, 255, 0.8));
    color: var(--bright-blue);
    transform: scale(1.05);
    text-decoration-color: var(--accent-orange);
}

.vocab:hover::before {
    opacity: 1;
    top: -25px;
}

/* Content Image */
.content-image {
    position: sticky;
    top: 120px;
}

.image-container {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-heavy);
    background: var(--bg-white);
    padding: 12px;
    transition: all var(--transition-medium);
}

.image-container:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 40px rgba(74, 144, 226, 0.25);
}

.main-image {
    width: 100%;
    object-fit: cover;
    border-radius: var(--border-radius-small);
    transition: all var(--transition-medium);
}


.image-caption {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: linear-gradient(135deg, var(--light-blue), rgba(255, 255, 255, 0.9));
    font-weight: 600;
    color: var(--text-dark);
    border-radius: 0 0 var(--border-radius-small) var(--border-radius-small);
    margin-top: 8px;
}

.caption-icon {
    font-size: 20px;
}

/* Facts List */
.facts-list h3 {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 24px;
    text-align: center;
    text-shadow: 2px 2px 4px rgba(74, 144, 226, 0.2);
}

.fact-cards {
    display: grid;
    gap: 16px;
}

.fact-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), var(--light-blue));
    border-radius: var(--border-radius);
    border: 2px solid transparent;
    transition: all var(--transition-medium);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.fact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.fact-card:hover {
    transform: translateY(-2px) scale(1.02);
    border-color: var(--accent-yellow);
    box-shadow: var(--shadow-medium);
}

.fact-card:hover::before {
    left: 100%;
}

.fact-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-yellow));
    border-radius: 50%;
    box-shadow: var(--shadow-light);
}

.fact-text {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    flex: 1;
}

/* Read More Links */
.read-more-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 24px;
}

.link-card {
    padding: 24px;
    background: linear-gradient(135deg, var(--bg-white), var(--light-blue));
    border-radius: var(--border-radius);
    border: 2px solid transparent;
    transition: all var(--transition-medium);
    cursor: pointer;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.link-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-orange), var(--accent-yellow), var(--accent-green));
}

.link-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-green);
    box-shadow: var(--shadow-heavy);
}

.card-icon {
    font-size: 48px;
    margin-bottom: 16px;
    display: block;
}

.link-card h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 12px;
}

.link-card p {
    font-size: 14px;
    color: var(--text-medium);
    line-height: 1.5;
}

.link-card image {

    max-height: 50px;

}

.card-image {
    height: 150px;             
    width: auto;               
    max-width: 100%;           
    object-fit: contain;       
    display: block;
    margin: 0 auto 1rem auto;  
  }
  

/* Quiz Styles */
#quiz-container {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 32px;
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
}

#quiz-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-pink), var(--accent-orange));
}

.quiz-title {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary-blue);
    text-align: center;
    margin-bottom: 16px;
    text-shadow: 2px 2px 4px rgba(74, 144, 226, 0.2);
}

.quiz-subtitle {
    font-size: 18px;
    color: var(--text-medium);
    text-align: center;
    margin-bottom: 32px;
}

.question {
    margin-bottom: 32px;
    padding: 24px;
    background: linear-gradient(135deg, var(--light-blue), rgba(255, 255, 255, 0.8));
    border-radius: var(--border-radius);
    border: 2px solid var(--accent-yellow);
}

.question-text {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
    text-align: center;
}

.options {
    display: grid;
    gap: 12px;
}

.option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--bg-white);
    border: 2px solid var(--light-blue);
    border-radius: var(--border-radius-small);
    cursor: pointer;
    transition: all var(--transition-medium);
    font-size: 16px;
    font-weight: 500;
}

.option:hover {
    border-color: var(--accent-orange);
    background: var(--light-blue);
    transform: translateX(-4px);
}

.option input[type="radio"] {
    width: 20px;
    height: 20px;
    accent-color: var(--accent-green);
}

.option.correct {
    border-color: var(--accent-green);
    background: linear-gradient(135deg, rgba(107, 207, 127, 0.1), rgba(107, 207, 127, 0.05));
    animation: correctAnswer 0.6s ease;
}

.option.incorrect {
    border-color: var(--warm-red);
    background: linear-gradient(135deg, rgba(255, 87, 87, 0.1), rgba(255, 87, 87, 0.05));
    animation: incorrectAnswer 0.6s ease;
}

@keyframes correctAnswer {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes incorrectAnswer {
    0% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
    100% { transform: translateX(0); }
}

/* Drag and Drop Styles */
.drag-drop-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-top: 24px;
}

.drag-items, .drop-zones {
    display: grid;
    gap: 12px;
}

.drag-item {
    padding: 16px;
    background: linear-gradient(135deg, var(--accent-yellow), rgba(255, 217, 61, 0.8));
    border: 2px solid var(--accent-orange);
    border-radius: var(--border-radius-small);
    cursor: grab;
    transition: all var(--transition-medium);
    font-weight: 600;
    text-align: center;
    user-select: none;
}

.drag-item:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-medium);
}

.drag-item.dragging {
    opacity: 0.5;
    transform: rotate(5deg);
    cursor: grabbing;
}

.drop-zone {
    padding: 20px;
    border: 3px dashed var(--light-blue);
    border-radius: var(--border-radius-small);
    background: rgba(255, 255, 255, 0.5);
    text-align: center;
    transition: all var(--transition-medium);
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--text-medium);
}

.drop-zone.drag-over {
    border-color: var(--accent-green);
    background: rgba(107, 207, 127, 0.1);
    transform: scale(1.05);
}

.drop-zone.filled {
    border-color: var(--accent-green);
    background: linear-gradient(135deg, rgba(107, 207, 127, 0.2), rgba(107, 207, 127, 0.1));
}

/* Footer */
.footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-top: 3px solid var(--accent-yellow);
    padding: 24px 20px;
    margin-top: 40px;
}

.footer-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    max-width: 1200px;
    margin: 0 auto 20px;
    flex-wrap: wrap;
}

.footer-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 20px;
    border: 2px solid var(--light-blue);
    border-radius: var(--border-radius);
    background: var(--bg-white);
    color: var(--text-dark);
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-primary);
    cursor: pointer;
    transition: all var(--transition-medium);
    min-width: 100px;
}

.footer-btn:hover {
    border-color: var(--accent-orange);
    background: var(--light-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

.btn-icon {
    font-size: 24px;
}

.footer-bottom {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.pill-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 25px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink));
    color: var(--text-white);
    font-size: 16px;
    font-weight: 600;
    font-family: var(--font-primary);
    cursor: pointer;
    transition: all var(--transition-medium);
    box-shadow: var(--shadow-light);
}

.pill-btn:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-medium);
}

.games-btn {
    background: linear-gradient(135deg, var(--accent-green), var(--bright-blue));
}

.question-btn {
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-yellow));
}

.footer-copyright {
    text-align: center;
    font-size: 12px;
    color: var(--text-light);
    border-top: 1px solid var(--light-blue);
    padding-top: 16px;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    animation: modalSlideIn 0.4s ease;
}

@keyframes modalSlideIn {
    from {
        transform: scale(0.8) translateY(20px);
        opacity: 0;
    }
    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

.modal-content {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    padding: 32px;
    position: relative;
    box-shadow: var(--shadow-heavy);
    border: 3px solid var(--accent-yellow);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: var(--warm-red);
    color: var(--text-white);
    font-size: 18px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--accent-orange);
    transform: scale(1.1);
}

.modal-image {
    max-width: 60vw;
    max-height: 50vh;
    object-fit: contain;
    border-radius: var(--border-radius-small);
}

/* Glossary Modal */
.glossary-content {
    max-width: 500px;
    text-align: center;
}

.glossary-header h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 24px;
}

.glossary-word {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-orange);
    margin-bottom: 16px;
    padding: 12px 20px;
    background: var(--light-blue);
    border-radius: var(--border-radius-small);
}

.glossary-definition {
    font-size: 18px;
    color: var(--text-dark);
    line-height: 1.6;
    margin-bottom: 24px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--border-radius-small);
    border: 2px solid var(--accent-yellow);
}

.glossary-audio {
    margin: 0 auto;
}

.modal .glossary-image {

    width: 250px;
    height: 250px;
    object-fit: contain; /* crops to fill */
    border-radius: 8px; /* optional: rounded corners */}

/* Responsive Design */
@media (max-width: 768px) {
    .header-container {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .breadcrumb {
        order: 3;
        flex-basis: 100%;
    }
    
    .tabs-strip {
        gap: 2px;
    }
    
    .tab {
        padding: 12px 16px;
        font-size: 14px;
        min-width: 120px;
    }
    
    .content-text {
        padding: 24px;
    }
    
    .text-content {
        font-size: 16px;
    }
    
    .lead-paragraph {
        font-size: 18px;
    }
    
    .drag-drop-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .footer-actions {
        gap: 12px;
    }
    
    .footer-btn {
        min-width: 80px;
        padding: 12px 16px;
        font-size: 12px;
    }
    
    .btn-icon {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 20px 16px;
    }
    
    .content-text {
        padding: 20px;
    }
    
    .audio-controls {
        flex-direction: column;
        gap: 12px;
    }
    
    .play-audio-btn {
        align-self: center;
    }
    
    .modal-content {
        padding: 24px;
        margin: 20px;
    }
    
    .glossary-content {
        max-width: calc(100vw - 40px);
    }
}

/* Print Styles */
@media print {
    .header, .tabs-container, .footer, .modal, .audio-controls, .enlarge-btn {
        display: none !important;
    }
    
    .tab-content {
        display: block !important;
    }
    
    .main-content {
        max-width: none;
        padding: 0;
    }
    
    .content-container {
        grid-template-columns: 1fr;
    }
    
    body {
        background: white !important;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --text-dark: #000000;
        --text-medium: #333333;
        --bg-white: #FFFFFF;
        --primary-blue: #0000FF;
        --accent-orange: #FF6600;
    }
    
    .tab.active {
        background: #000000;
        color: #FFFFFF;
    }
    
    .vocab {
        background: #FFFF00;
        color: #000000;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .sentence.highlighted {
        animation: none;
    }
    
    .play-audio-btn.playing {
        animation: none;
    }
}
:root {
    --primary-blue: #007bff;
    --primary-blue-dark: #0056b3;
  }
  
  .glossary-audios {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
  }
  
  .glossary-audios .modal-audio-btn {
    font-size: 2rem;
    padding: 0.6rem 1.2rem;
    background: var(--primary-blue);
    border: 1px solid var(--primary-blue);
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    color: white;
    transition: background 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  }
  
  .glossary-audios .modal-audio-btn:hover {
    background: var(--primary-blue-dark);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.25);
  }
  
  .audio-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 0.5rem;
  }
  
  .audio-buttons button {
    padding: 0.5rem 1rem;
    font-size: 1.2rem;
    cursor: pointer;
    background-color: #FFD93D;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    transition: background 0.3s ease, transform 0.2s ease;
  }
  
  .audio-buttons button:hover {
    background-color: #ffcc00;
    transform: scale(1.05);
  }
  
  .correct {
    background-color: #e0ffe0 !important;
    border: 2px solid #4caf50 !important;
    border-radius: 8px;
    padding: 4px;
  }

  .incorrect {
    background-color: #ffe0e0 !important;
    border: 2px solid #f44336 !important;
    border-radius: 8px;
    padding: 4px;
  }

  
  .audio-option {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .audio-play-btn {
    background-color: #ffcc00;
    border: 2px solid #ccc;
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
  }

  .audio-play-btn:hover {
    background-color: #e3f2fd;
    border-color: #2196f3;
    color: #0d47a1;
  }

  input[type="radio"] {
    accent-color: #2196f3;
    width: 18px;
    height: 18px;
    cursor: pointer; /* Pointer on radio */
  }

  .speaker-icon {
    width: 50px;
    height: 50px;
  }




#tab-facts .content-text {
    display: flex;
    flex-direction: row;
    gap: 40px;
    align-items: flex-start;
    padding: 32px;
    border-radius: var(--border-radius);
    background: var(--bg-card);
    box-shadow: var(--shadow-medium);
  }
  
  #tab-facts .lead-paragraph {
    flex: 1;
    font-size: 22px;
    color: var(--text-dark);
    line-height: 1.8;
    text-align: justify;
  }
  
  #tab-facts .audio-controls {
    flex-shrink: 0;
    margin-left: 32px;
    min-width: 180px;
    max-width: 220px;
  }