/* ===== CSS Variables ===== */
:root {
    /* Primary Colors */
    --primary-green: #059669;
    --primary-gold: #f59e0b;
    --accent-green: #10b981;
    --dark-green: #064e3b;
    
    /* Light Theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-tertiary: #9ca3af;
    --border-color: #e5e7eb;
    --card-bg: #ffffff;
    --card-hover: #f9fafb;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5), 0 8px 10px -6px rgb(0 0 0 / 0.4);
    
    /* Status Colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --error: #ef4444;
    --error-light: #fee2e2;
    --warning: #f59e0b;
    --info: #3b82f6;
    
    /* Misc */
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --header-height: 80px;
}

/* Dark Theme */
[data-theme="dark"] {
    --primary-green: #10b981;
    --primary-gold: #fbbf24;
    --accent-green: #34d399;
    
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --border-color: #334155;
    --card-bg: #1e293b;
    --card-hover: #334155;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.25);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.3);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5), 0 8px 10px -6px rgb(0 0 0 / 0.4);
    
    --success-light: #064e3b;
    --error-light: #7f1d1d;
}

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

html {
    scroll-behavior: smooth;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.rtl {
    direction: rtl;
}

/* ===== Typography ===== */
.arabic-text {
    font-family: 'Amiri', 'Traditional Arabic', serif;
    font-size: 1.5em;
    line-height: 2;
    letter-spacing: 0.02em;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 600;
}

/* ===== Background Pattern ===== */
.pattern-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.02;
    pointer-events: none;
    z-index: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, var(--primary-green) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, var(--primary-gold) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, var(--accent-green) 0%, transparent 50%);
}

[data-theme="dark"] .pattern-bg {
    opacity: 0.01;
}

/* ===== Header ===== */
.header {
    background: linear-gradient(135deg, var(--primary-green), var(--accent-green));
    color: white;
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 100;
}

[data-theme="dark"] .header {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.app-title {
    font-size: 1.875rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.app-title .arabic-title {
    font-family: 'Amiri', serif;
    font-size: 2.25rem;
    color: var(--primary-gold);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .app-title {
    text-shadow: none;
}

/* ===== Controls ===== */
.controls {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.language-selector,
.theme-toggle {
    background: var(--dark-green);
    border: 2px solid var(--primary-gold);
    color: white;
    padding: 0.625rem 1.25rem;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9375rem;
    font-weight: 500;
}

.language-selector option {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 0.5rem;
}

[data-theme="dark"] .language-selector,
[data-theme="dark"] .theme-toggle {
    background: var(--bg-tertiary);
    border-color: var(--primary-gold);
    color: var(--text-primary);
}

[data-theme="dark"] .language-selector option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.language-selector:hover,
.theme-toggle:hover {
    background: var(--accent-green);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-gold);
}

[data-theme="dark"] .language-selector:hover,
[data-theme="dark"] .theme-toggle:hover {
    background: var(--card-hover);
}

.language-selector:focus,
.theme-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.3);
}

/* ===== Navigation Tabs ===== */
.nav-tabs {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.5rem 1rem 0;
    display: flex;
    gap: 0.25rem;
    border-bottom: 2px solid var(--border-color);
    overflow-x: auto;
    background: var(--bg-secondary);
    scrollbar-width: none;
    -ms-overflow-style: none;
}

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

[data-theme="dark"] .nav-tabs {
    background: var(--bg-primary);
}

.nav-tab {
    padding: 0.875rem 1.75rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    font-size: 0.9375rem;
    white-space: nowrap;
    position: relative;
    border-radius: var(--border-radius-sm) var(--border-radius-sm) 0 0;
}

.nav-tab:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

[data-theme="dark"] .nav-tab:hover {
    background: var(--bg-secondary);
}

.nav-tab.active {
    color: var(--primary-green);
    background: var(--bg-primary);
}

[data-theme="dark"] .nav-tab.active {
    background: var(--bg-secondary);
}

.nav-tab.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-green);
    border-radius: 3px 3px 0 0;
}

/* ===== Container ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem clamp(0.5rem, 3vw, 1rem) 3rem;
    position: relative;
    z-index: 1;
    background: var(--bg-secondary);
    min-height: calc(100vh - var(--header-height));
}

[data-theme="dark"] .container {
    background: var(--bg-primary);
}

/* ===== Search Bar ===== */
.search-container {
    margin-bottom: 2rem;
}

.search-bar {
    width: 100%;
    padding: 1rem 1.25rem;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    color: var(--text-primary);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.search-bar::placeholder {
    color: var(--text-tertiary);
}

.search-bar:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1), var(--shadow-md);
}

[data-theme="dark"] .search-bar:focus {
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2), var(--shadow-md);
}

/* ===== Names Grid ===== */
.names-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    animation: fadeIn 0.5s ease;
}

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

/* ===== Name Card ===== */
.name-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 1.75rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.name-card.learned {
    background: linear-gradient(135deg, var(--card-bg), rgba(16, 185, 129, 0.05));
}

.name-card.favorite {
    background: linear-gradient(135deg, var(--card-bg), rgba(245, 158, 11, 0.05));
}

.name-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-green), var(--primary-gold));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.name-card:hover::before {
    transform: scaleX(1);
}

.name-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-green);
}

[data-theme="dark"] .name-card:hover {
    background: var(--card-hover);
}

.name-number {
    position: absolute;
    top: 1rem;
    inset-inline-end: 1rem;
    background: linear-gradient(135deg, var(--primary-gold), var(--warning));
    color: white;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    box-shadow: var(--shadow-md);
}

.favorite-badge,
.learned-badge {
    position: absolute;
    top: 1rem;
    inset-inline-start: 1rem;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    background: white;
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

.learned-badge {
    inset-inline-start: 2.5rem;
    background: var(--success-light);
    color: var(--success);
    font-weight: bold;
}


.name-arabic {
    font-size: 2.25rem;
    background: linear-gradient(135deg, var(--primary-green), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.75rem;
    text-align: center;
    font-weight: 700;
}

.name-transliteration {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 0.5rem;
    font-style: italic;
    font-size: 1.125rem;
}

.name-meaning {
    text-align: center;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 1rem;
}

.name-actions {
    margin-top: 1.25rem;
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

.btn-action {
    padding: 0.625rem 1rem;
    background: var(--primary-green);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    touch-action: manipulation;
}

.btn-action:hover {
    background: var(--accent-green);
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.btn-action:active {
    transform: scale(0.98);
}

.btn-action.btn-favorite {
    background: transparent;
    font-size: 1.25rem;
    padding: 0.5rem;
}

.btn-action.btn-play {
    background: var(--primary-gold);
}

.btn-action.btn-play:hover {
    background: var(--warning);
}

.btn-action.playing {
    animation: pulse 1s infinite;
}

/* ===== Study View ===== */
.study-view {
    display: none;
    max-width: 900px;
    margin: 0 auto;
}

.study-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    box-shadow: var(--shadow-lg);
    text-align: center;
    border: 1px solid var(--border-color);
    position: relative;
}

.study-favorite-btn {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    transition: transform 0.2s;
}

.study-favorite-btn:hover {
    transform: scale(1.2);
}

.study-arabic {
    font-size: 4.5rem;
    background: linear-gradient(135deg, var(--primary-green), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.study-transliteration {
    font-size: 1.75rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-style: italic;
    font-weight: 400;
}

.study-meaning {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
    font-weight: 500;
}

.study-reflection {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(245, 158, 11, 0.05));
    padding: 1.75rem;
    border-radius: var(--border-radius);
    border-inline-start: 4px solid var(--primary-green);
    text-align: start;
    line-height: 1.8;
    color: var(--text-secondary);
    font-size: 1.0625rem;
    max-width: 75ch;
}

[data-theme="dark"] .study-reflection {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(245, 158, 11, 0.1));
}

.study-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2.5rem;
    gap: 1rem;
}

.btn-nav {
    padding: 0.875rem 2rem;
    background: var(--primary-green);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    touch-action: manipulation;
}

.btn-nav:hover:not(:disabled) {
    background: var(--accent-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-nav:active:not(:disabled) {
    transform: translateY(0);
}

.btn-nav:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
}

.btn-nav.playing {
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { 
        transform: scale(1); 
        opacity: 1;
    }
    50% { 
        transform: scale(1.05); 
        opacity: 0.9;
    }
}

@media (hover: none) and (pointer: coarse) {
    .btn-play, 
    #playAudio,
    .btn-action.btn-play {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
        user-select: none;
        -webkit-user-select: none;
    }
    
    .btn-play:active,
    #playAudio:active,
    .btn-action.btn-play:active {
        transform: scale(0.95);
    }
}

/* ===== Quiz View ===== */
.quiz-view {
    display: none;
    max-width: 700px;
    margin: 0 auto;
}

.quiz-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.quiz-progress {
    margin-bottom: 2rem;
}

.progress-bar {
    height: 10px;
    background: var(--bg-tertiary);
    border-radius: 5px;
    overflow: hidden;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-green), var(--primary-gold));
    transition: width 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.quiz-question {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--text-primary);
    font-weight: 500;
    max-width: 60ch;
    margin-inline: auto;
}

.quiz-arabic-display {
    font-size: 3.5rem;
    text-align: center;
    margin: 2rem 0;
    background: linear-gradient(135deg, var(--primary-green), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.quiz-options {
    display: grid;
    gap: 1rem;
}

.quiz-option {
    padding: 1.25rem;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    font-size: 1.0625rem;
    color: var(--text-primary);
    touch-action: manipulation;
}

.quiz-option:hover {
    border-color: var(--primary-green);
    background: var(--bg-tertiary);
}

.quiz-option.correct {
    border-color: var(--success);
    background: var(--success-light);
    color: var(--text-primary);
    animation: correctAnswer 0.5s ease;
}

.quiz-option.incorrect {
    border-color: var(--error);
    background: var(--error-light);
    color: var(--text-primary);
    animation: shake 0.5s ease;
}

@keyframes correctAnswer {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

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

.quiz-result-score {
    padding: 2rem;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(245, 158, 11, 0.1));
    border-radius: var(--border-radius);
    margin: 1rem 0;
}

.quiz-percentage {
    font-size: 2rem;
    color: var(--primary-gold);
    font-weight: bold;
}

/* ===== Progress View ===== */
.progress-view {
    display: none;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-green), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-secondary);
    margin-top: 0.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.clear-progress-btn {
    background: var(--error) !important;
    margin: 2rem auto;
    display: block;
}

.clear-progress-btn:hover {
    background: #dc2626 !important;
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    max-width: 500px;
    width: 90%;
    position: relative;
    animation: slideUp 0.3s ease;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--error);
    color: white;
    transform: rotate(90deg);
}

.daily-name-header {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-gold), var(--warning));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Notification Toast ===== */
.notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary-green);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1001;
}

.notification.show {
    transform: translateY(0);
    opacity: 1;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }

    .header {
        padding: 1rem;
    }

    .header-content {
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
    }

    .app-title {
        font-size: 1.5rem;
    }

    .app-title .arabic-title {
        font-size: 1.75rem;
    }

    .controls {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 0.5rem;
    }

    .language-selector {
        width: 100%;
    }

    .names-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .name-card {
        padding: 1.5rem;
    }

    .name-arabic {
        font-size: 2rem;
    }

    .study-arabic {
        font-size: 3rem;
    }

    .study-card {
        padding: 1.5rem;
    }

    .study-transliteration {
        font-size: 1.5rem;
    }

    .study-meaning {
        font-size: 1.25rem;
    }

    .study-reflection {
        padding: 1.25rem;
        font-size: 1rem;
    }

    .study-nav {
        flex-wrap: wrap;
    }

    .btn-nav {
        padding: 0.75rem 1.5rem;
        font-size: 0.9375rem;
    }

    .quiz-card {
        padding: 1.5rem;
    }

    .quiz-arabic-display {
        font-size: 2.5rem;
    }

    .quiz-option {
        padding: 1rem;
        font-size: 1rem;
    }

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

    .stat-value {
        font-size: 2rem;
    }

    .nav-tabs {
        padding: 1rem 0.5rem 0;
        gap: 0;
    }

    .nav-tab {
        padding: 0.75rem 1rem;
        font-size: 0.875rem;
    }

    .modal-content {
        padding: 1.5rem;
        width: 95%;
    }

    .notification {
        bottom: 1rem;
        right: 1rem;
        left: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .name-actions {
        flex-wrap: wrap;
    }

    .btn-action {
        flex: 1;
        min-width: 60px;
    }

    .study-nav {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
    }

    .study-nav .btn-nav:nth-child(2) {
        grid-column: 1 / -1;
    }

    .quiz-name-arabic {
        font-size: 1.75rem;
    }

    .quiz-results-score-number {
        font-size: 3rem;
    }

    .quiz-results-message {
        font-size: 1.1rem;
    }
}

/* ===== Utility Classes ===== */
.hidden {
    display: none !important;
}

/* ===== Loading Animation ===== */
.loader {
    border: 3px solid var(--bg-tertiary);
    border-top: 3px solid var(--primary-green);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

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

/* ===== Scrollbar Styling ===== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-green);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-green);
}

/* ===== Focus Styles ===== */
*:focus-visible {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

/* ===== Print Styles ===== */
@media print {
    .header,
    .nav-tabs,
    .controls,
    .search-container,
    .name-actions,
    .study-nav,
    .modal {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .name-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* ===== Quiz Inline Style Replacements ===== */
.quiz-name-arabic {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.quiz-name-transliteration {
    font-size: 1rem;
    color: var(--text-secondary);
    font-style: italic;
}

.quiz-results-container {
    text-align: center;
    padding: 2rem;
}

.quiz-results-title {
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.quiz-results-score-number {
    font-size: 4rem;
    margin: 1rem 0;
    font-weight: bold;
}

.quiz-results-message {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin: 1rem 0;
}

.quiz-results-restart {
    margin-top: 2rem;
}

/* ===== Progress Section Headers ===== */
.progress-section-header {
    grid-column: 1 / -1;
    margin-top: 2rem;
}

.progress-section-header--favorites {
    color: var(--primary-gold);
}

.progress-section-header--learned {
    color: var(--primary-green);
}

@media (hover: none) and (pointer: coarse) {
    .btn-action,
    .btn-nav,
    .quiz-option {
        min-height: 44px;
        min-width: 44px;
    }

    .modal-close {
        min-height: 44px;
        min-width: 44px;
    }

    .name-card:active {
        transform: scale(0.98);
        border-color: var(--primary-green);
        box-shadow: var(--shadow-lg);
    }

    .name-card:active::before {
        transform: scaleX(1);
    }

    .btn-action:active,
    .btn-nav:active {
        transform: scale(0.95);
    }
}