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

:root {
    --primary-navy: #2a2d5a;
    --secondary-navy: #1a1d3a;
    --primary-cyan: #4dd0e1;
    --secondary-cyan: #00acc1;
    --light-blue: #e0f7fa;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #6c757d;
    --dark-gray: #343a40;
    --border-color: #dee2e6;
    --shadow-light: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-heavy: 0 8px 24px rgba(0,0,0,0.2);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--light-gray);
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--primary-navy), var(--secondary-navy));
    padding: 0.75rem 0;
    box-shadow: var(--shadow-medium);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.logo {
    height: 50px;
    width: auto;
    max-width: 280px;
    flex-shrink: 0;
    transition: var(--transition);
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

/* Mobile header styles */
.mobile-header {
    display: none;
}

@media (max-width: 768px) {
    .logo {
        height: 40px;
        max-width: 200px;
    }
    
    /* Show mobile header, hide desktop logo */
    .mobile-header {
        display: flex;
        justify-content: center;
        align-items: center;
        padding: 0.5rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    /* Hide desktop navigation logo on mobile, show mobile header on all pages */
    .nav-menu .logo-item {
        display: none !important;
    }
    
    /* Ensure mobile header shows on all pages */
    .mobile-header {
        display: flex !important;
    }
}

.logo:hover {
    transform: scale(1.02);
}

.logo-item {
    margin-right: 1rem;
    display: flex;
    align-items: center;
}

.logo-item a {
    padding: 0.4rem 0.8rem;
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    padding: 0.4rem 0.8rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
    display: block;
    font-size: 0.9rem;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--primary-cyan);
}

.nav-link.active {
    background-color: var(--primary-cyan);
    color: var(--white);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    margin-left: auto;
}

/* Main Content Styles */
.main-content {
    min-height: calc(100vh - 140px);
    padding: 2rem 0;
}

.hero-section {
    text-align: center;
    padding: 1.5rem 0 1rem;
    background: linear-gradient(135deg, var(--light-blue), var(--white));
    margin-bottom: 1rem;
    border-radius: var(--border-radius);
}

.hero-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-navy);
    margin-bottom: 0.5rem;
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--medium-gray);
    margin-bottom: 1rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* Search Form Styles */
.search-container {
    max-width: 600px;
    margin: 0 auto 2rem;
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
}

.search-form {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.search-input {
    flex: 1;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-cyan);
    box-shadow: 0 0 0 3px rgba(77, 208, 225, 0.1);
}

.search-btn {
    background: linear-gradient(135deg, var(--primary-cyan), var(--secondary-cyan));
    color: var(--white);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

.search-btn:active {
    transform: translateY(0);
}

.search-options {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
    font-size: 0.9rem;
    color: var(--medium-gray);
}

.search-options select {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--white);
}

/* Results Section */
.results-section {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    padding: 2rem;
    display: none;
}

.results-section.show {
    display: block;
}

.results-title {
    color: var(--primary-navy);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.result-item {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.result-item:hover {
    background-color: var(--light-blue);
}

.result-word {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-navy);
    margin-bottom: 0.5rem;
}

.result-pronunciation {
    color: var(--medium-gray);
    font-style: italic;
    margin-bottom: 0.5rem;
}

.result-definition {
    color: var(--dark-gray);
    line-height: 1.6;
}

.result-type {
    display: inline-block;
    background: var(--primary-cyan);
    color: var(--white);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.tool-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    border: 2px solid transparent;
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-cyan);
    text-decoration: none;
    color: inherit;
}

.tool-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-cyan), var(--secondary-cyan));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--white);
    font-size: 1.5rem;
}

.tool-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-navy);
    margin-bottom: 0.5rem;
}

.tool-description {
    color: var(--medium-gray);
    font-size: 0.95rem;
}

/* Footer */
.footer {
    background: var(--primary-navy);
    color: var(--white);
    padding: 2rem 0;
    margin-top: 3rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--primary-cyan);
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
    display: block;
    margin-bottom: 0.5rem;
}

.footer-section a:hover {
    color: var(--primary-cyan);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Loading Animation */
.loading {
    display: none;
    text-align: center;
    padding: 2rem;
    color: var(--medium-gray);
}

.loading.show {
    display: block;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

/* Error States */
.error-message {
    background: #f8d7da;
    color: #721c24;
    padding: 1rem;
    border-radius: var(--border-radius);
    border: 1px solid #f5c6cb;
    margin-bottom: 1rem;
    display: none;
}

.error-message.show {
    display: block;
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--medium-gray);
    display: none;
}

.empty-state.show {
    display: block;
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Word Finder Results */
.words-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.word-item {
    background: var(--white);
    border: 1px solid var(--light-blue);
    border-radius: var(--border-radius);
    padding: 1rem;
    transition: var(--transition);
}

.word-item:hover {
    border-color: var(--primary-cyan);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.word-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-navy);
    margin-bottom: 0.5rem;
}

.word-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--medium-gray);
}

.word-length,
.word-score {
    padding: 0.2rem 0.5rem;
    background: var(--light-blue);
    border-radius: 12px;
    font-size: 0.75rem;
}

.define-word {
    background: var(--primary-cyan);
    border: none;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    cursor: pointer;
    transition: var(--transition);
}

.define-word:hover {
    background: var(--primary-navy);
    transform: scale(1.1);
}

/* Word Finder Two-Column Layout */
.page-header {
    text-align: center;
    margin-bottom: 2rem;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-navy);
    margin-bottom: 0.5rem;
}

.page-subtitle {
    font-size: 1.1rem;
    color: var(--medium-gray);
    max-width: 600px;
    margin: 0 auto;
}

.two-column-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.search-column .search-container {
    margin: 0 0 1.5rem 0;
}

.search-column .results-section {
    margin-top: 1rem;
}

.search-column .words-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
}

.search-column .word-item {
    padding: 0.75rem;
}

.word-phonetic {
    font-style: italic;
    color: var(--medium-gray);
    font-size: 0.9rem;
    margin: 0.25rem 0;
}

.word-definition {
    color: var(--dark-gray);
    font-size: 0.85rem;
    line-height: 1.4;
    margin: 0.5rem 0;
    padding: 0.5rem;
    background: var(--light-blue);
    border-radius: 4px;
    border-left: 3px solid var(--accent-blue);
}

.word-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.25rem;
}

.play-audio-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 50%;
    transition: var(--transition);
    opacity: 0.8;
}

.play-audio-btn:hover {
    background: var(--light-blue);
    opacity: 1;
    transform: scale(1.1);
}

.play-audio-btn:active {
    transform: scale(0.95);
}

.word-text {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--primary-navy);
}

.main-word-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.main-word-info .word-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-navy);
    margin: 0 0 0.25rem 0;
}

.main-word-info .phonetic {
    font-size: 1.1rem;
    color: var(--medium-gray);
    font-style: italic;
}

.audio-controls {
    display: flex;
    align-items: center;
}

.main-audio-btn {
    font-size: 1.5rem;
    padding: 0.5rem;
    background: var(--light-blue);
    border: 2px solid var(--accent-blue);
    border-radius: 50%;
}

.main-audio-btn:hover {
    background: var(--accent-blue);
    color: white;
    transform: scale(1.15);
}

/* Word of the Moment Styles */
.featured-word-section {
    margin-bottom: 3rem;
}

.featured-word-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    padding: 2rem;
    border: 2px solid var(--accent-blue);
}

.featured-word-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--light-blue);
}

.featured-word-title {
    color: var(--primary-navy);
    font-size: 1.5rem;
    margin: 0;
}

.refresh-word-btn {
    background: var(--accent-blue);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.refresh-word-btn:hover {
    background: var(--primary-navy);
    transform: translateY(-2px);
}

.featured-word-main {
    display: grid;
    gap: 1.5rem;
}

.word-display {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--light-blue), var(--white));
    border-radius: var(--border-radius);
}

.word-title-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.word-display .word-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-navy);
    margin: 0;
}

.featured-audio-btn {
    font-size: 1.8rem;
    padding: 0.5rem;
    background: var(--white);
    border: 2px solid var(--accent-blue);
    border-radius: 50%;
}

.word-part-of-speech {
    background: var(--accent-blue);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    display: inline-block;
    margin-top: 0.5rem;
}

.word-definition-main h4,
.word-facts h4 {
    color: var(--primary-navy);
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
}

.definition-text {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--dark-gray);
    margin-bottom: 1rem;
}

.example-section {
    background: var(--light-blue);
    padding: 1rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-blue);
}

.example-section h5 {
    color: var(--primary-navy);
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
}

.example-text {
    font-style: italic;
    color: var(--dark-gray);
    margin: 0;
}

.word-facts {
    background: var(--light-blue);
    padding: 1.5rem;
    border-radius: var(--border-radius);
}

.fact-text {
    color: var(--dark-gray);
    line-height: 1.5;
    margin: 0;
}

.word-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1rem;
}

.action-btn {
    background: var(--primary-navy);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.action-btn:hover {
    background: var(--accent-blue);
    transform: translateY(-2px);
}

/* Categories Section */
.word-categories-section {
    margin-bottom: 3rem;
}

.section-title {
    color: var(--primary-navy);
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2rem;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.category-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--accent-blue);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.category-title {
    color: var(--primary-navy);
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
}

.category-description {
    color: var(--medium-gray);
    line-height: 1.5;
    margin: 0;
}

/* Word History Section */
.word-history-section {
    margin-bottom: 3rem;
}

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

.history-word-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    cursor: pointer;
    transition: var(--transition);
    border-left: 4px solid var(--accent-blue);
}

.history-word-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.history-word-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-navy);
    margin-bottom: 0.25rem;
}

.history-word-phonetic {
    font-style: italic;
    color: var(--medium-gray);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.history-word-definition {
    color: var(--dark-gray);
    line-height: 1.4;
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.history-word-category {
    font-size: 0.8rem;
    color: var(--accent-blue);
    font-weight: 600;
}

/* Word Finder Results Styles */
.word-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.word-result-card {
    background: var(--white);
    border: 1px solid var(--light-blue);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-light);
}

.word-result-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    border-color: var(--accent-blue);
}

.word-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.word-result-card .word-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-navy);
    margin: 0;
}

.word-result-card .word-phonetic {
    font-style: italic;
    color: var(--medium-gray);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.word-result-card .word-pos {
    background: var(--light-blue);
    color: var(--primary-navy);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 0.75rem;
}

.word-result-card .word-definition {
    color: var(--dark-gray);
    line-height: 1.4;
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.word-result-card .word-length {
    font-size: 0.8rem;
    color: var(--medium-gray);
    font-weight: 500;
}

.loading-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--medium-gray);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--light-blue);
    border-top: 4px solid var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

/* Enhanced Audio Controls */
.audio-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.play-audio-btn, .pronunciation-btn {
    background: var(--white);
    border: 2px solid var(--accent-blue);
    color: var(--accent-blue);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.play-audio-btn:hover, .pronunciation-btn:hover {
    background: var(--accent-blue);
    color: white;
    transform: scale(1.1);
}

.play-audio-btn:active, .pronunciation-btn:active {
    transform: scale(0.95);
}

.play-audio-btn:disabled, .pronunciation-btn:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

/* Audio button states */
.play-audio-btn.playing {
    background: var(--primary-navy);
    color: white;
    animation: pulse 1s infinite;
}

/* Word Actions for Synonyms/Antonyms */
.word-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-left: auto;
}

.search-synonym, .search-antonym {
    background: transparent;
    border: 1px solid var(--light-blue);
    color: var(--primary-navy);
    border-radius: 20px;
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.search-synonym:hover, .search-antonym:hover {
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
}

/* Enhanced synonym and antonym items */
.synonym-item, .antonym-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--white);
    border: 1px solid var(--light-blue);
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
}

.synonym-item:hover, .antonym-item:hover {
    border-color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

.synonym-word, .antonym-word {
    font-weight: 500;
    color: var(--primary-navy);
    flex-grow: 1;
}

/* Main word header enhancement */
.main-word-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--light-blue), var(--white));
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    border: 2px solid var(--accent-blue);
}

.main-word-info {
    flex-grow: 1;
}

.main-word-info .word-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-navy);
    margin: 0 0 0.5rem 0;
}

.main-word-info .phonetic {
    font-style: italic;
    color: var(--medium-gray);
    font-size: 1.1rem;
}

.main-audio-btn {
    font-size: 1.8rem;
    width: 60px;
    height: 60px;
}

/* Mobile responsive styles for word finder */
@media (max-width: 768px) {
    .word-results-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .word-result-card {
        padding: 1rem;
    }
    
    .word-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .main-word-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .main-word-info .word-title {
        font-size: 2rem;
    }
    
    .main-audio-btn {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .word-actions {
        flex-direction: column;
        gap: 0.25rem;
        margin-left: 0;
        margin-top: 0.5rem;
    }
    
    .synonym-item, .antonym-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

/* Examples and Sentences styling */
.examples-container, .sentences-container {
    margin-bottom: 2rem;
}

.examples-header, .sentences-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--light-blue);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border: 1px solid var(--accent-blue);
}

.examples-header h3, .sentences-header h3 {
    color: var(--primary-navy);
    margin: 0;
    font-size: 1.2rem;
}

.examples-list {
    display: grid;
    gap: 1rem;
}

.example-item {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-blue);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

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

.example-sentence {
    font-size: 1.1rem;
    color: var(--primary-navy);
    font-weight: 500;
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.example-context {
    color: var(--medium-gray);
    font-size: 0.9rem;
    line-height: 1.4;
}

.context-pos {
    background: var(--accent-blue);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

@media (max-width: 768px) {
    .examples-header, .sentences-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .example-item {
        padding: 1rem;
    }
    
    .example-sentence {
        font-size: 1rem;
    }
}

.tips-column {
    display: flex;
    align-items: start;
}

.tips-container {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    width: 100%;
}

.tips-title {
    color: var(--primary-navy);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.tips-grid {
    display: grid;
    gap: 1rem;
}

.tip-item {
    display: flex;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--light-blue);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.tip-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

.tip-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.tip-content strong {
    color: var(--primary-navy);
    display: block;
    margin-bottom: 0.3rem;
}

.tip-content p {
    color: var(--dark-gray);
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Mobile Navigation Tabs */
@media (max-width: 768px) {
    .header {
        padding: 0.5rem 0;
    }
    
    .nav-container {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    /* Mobile header with logo */
    .mobile-header {
        display: flex;
        justify-content: center;
        align-items: center;
        width: 100%;
        padding: 0 1rem;
    }
    
    .mobile-menu-toggle {
        display: none;
    }

    /* Mobile tabs navigation - show only main 4 tabs */
    .nav-menu {
        display: flex;
        justify-content: space-around;
        align-items: center;
        padding: 0 1rem;
        gap: 0.25rem;
        width: 100%;
    }
    
    /* Hide extra navigation items on mobile */
    .nav-menu .nav-item:nth-child(n+6) {
        display: none;
    }
    
    .nav-menu::-webkit-scrollbar {
        display: none;
    }
    
    /* Hide logo from nav-menu on mobile */
    .nav-menu .logo-item {
        display: none;
    }
    
    .nav-menu .nav-item {
        flex-shrink: 0;
    }
    
    .nav-menu .nav-link {
        display: block;
        padding: 0.5rem 1rem;
        background: rgba(255, 255, 255, 0.1);
        color: var(--white);
        text-decoration: none;
        border-radius: 20px;
        font-size: 0.85rem;
        font-weight: 500;
        transition: var(--transition);
        white-space: nowrap;
        border: 1px solid transparent;
    }
    
    .nav-menu .nav-link:hover {
        background: rgba(255, 255, 255, 0.15);
        transform: none;
    }
    
    .nav-menu .nav-link.active {
        background: var(--primary-cyan);
        color: var(--primary-navy);
        font-weight: 600;
        border-color: var(--primary-cyan);
    }

    .nav-menu.show {
        display: flex;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .search-form {
        flex-direction: column;
    }

    .search-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .tools-grid {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 0.5rem;
    }
    
    .two-column-layout {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .page-title {
        font-size: 1.8rem;
    }
    
    .page-subtitle {
        font-size: 1rem;
    }
    
    /* Word of the Moment Mobile Styles */
    .featured-word-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .word-display .word-title {
        font-size: 2rem;
    }
    
    .word-title-section {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .word-history-grid {
        grid-template-columns: 1fr;
    }
    
    .word-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .action-btn {
        width: 100%;
        max-width: 200px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .search-container,
    .results-section {
        padding: 1rem;
    }

    .tool-card {
        padding: 1rem;
    }
}

/* Tools Showcase Page Styles */
.tools-showcase {
    padding: 2rem 0;
}

.tool-category {
    margin-bottom: 3rem;
}

.category-title {
    font-size: 1.5rem;
    color: var(--primary-navy);
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 700;
}

.category-tools {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.category-tools .tool-card {
    background: var(--white);
    border: 2px solid var(--light-blue);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-decoration: none;
    transition: var(--transition);
    display: block;
    height: auto;
}

.category-tools .tool-card:hover {
    border-color: var(--primary-cyan);
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.category-tools .tool-card h3 {
    color: var(--primary-navy);
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.category-tools .tool-card p {
    color: var(--dark-gray);
    line-height: 1.5;
    margin: 0;
    font-size: 0.95rem;
}

/* Mobile responsive for tools showcase */
@media (max-width: 768px) {
    .category-tools {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .category-tools .tool-card {
        padding: 1.25rem;
    }
    
    .category-title {
        font-size: 1.3rem;
        margin-bottom: 1rem;
    }
}

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

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles for accessibility */
.nav-link:focus,
.search-input:focus,
.search-btn:focus,
.tool-card:focus {
    outline: 2px solid var(--primary-cyan);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .footer {
        display: none;
    }
    
    .main-content {
        margin: 0;
        box-shadow: none;
    }
}

/* Dictionary API Results Styles */
.word-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--primary-navy), var(--primary-cyan));
    color: var(--white);
    border-radius: var(--border-radius);
}

.word-title {
    margin: 0;
    font-size: 2rem;
    font-weight: 700;
}

.phonetic {
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    opacity: 0.9;
}

.audio-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--white);
    padding: 0.5rem;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all var(--transition-speed);
}

.audio-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.meaning-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.part-of-speech {
    display: inline-block;
    background: var(--primary-cyan);
    color: var(--white);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: capitalize;
}

.definitions {
    margin-top: 1rem;
}

.definition-item {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.definition-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.definition-text {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--dark-gray);
    margin-bottom: 0.5rem;
}

.example-text {
    color: var(--medium-gray);
    font-style: italic;
    padding-left: 1rem;
    border-left: 3px solid var(--light-blue);
    margin-top: 0.5rem;
}

.synonyms-grid,
.antonyms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.synonym-item,
.antonym-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: all var(--transition-speed);
}

.synonym-item:hover,
.antonym-item:hover {
    box-shadow: var(--shadow-medium);
    transform: translateY(-2px);
}

.synonym-word,
.antonym-word {
    font-weight: 600;
    color: var(--primary-navy);
    flex-grow: 1;
}

.search-synonym,
.search-antonym {
    background: none;
    border: none;
    color: var(--primary-cyan);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 50%;
    transition: all var(--transition-speed);
}

.search-synonym:hover,
.search-antonym:hover {
    background: var(--light-blue);
    transform: scale(1.1);
}

.examples-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.example-item {
    padding: 1.5rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    border-left: 4px solid var(--primary-cyan);
}

.example-sentence {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--dark-gray);
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.example-context {
    font-size: 0.9rem;
    color: var(--medium-gray);
}

.context-pos {
    background: var(--light-blue);
    padding: 0.2rem 0.5rem;
    border-radius: 12px;
    font-weight: 600;
    color: var(--primary-navy);
}

.no-results {
    text-align: center;
    padding: 3rem;
    color: var(--medium-gray);
    font-size: 1.1rem;
    background: var(--light-background);
    border-radius: var(--border-radius);
}

/* Alternative Words Styling for "Another Word For" */
.alternative-words-header {
    background: var(--light-blue);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    border-left: 4px solid var(--primary-cyan);
}

.word-context h3 {
    color: var(--primary-navy);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-transform: capitalize;
}

.word-context p {
    color: var(--dark-gray);
    line-height: 1.5;
    margin: 0;
}

.alternative-words-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.alternative-words-grid .word-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    color: var(--primary-navy);
    font-size: 0.95rem;
    position: relative;
    overflow: hidden;
}

.alternative-words-grid .word-card:hover {
    background: var(--light-blue);
    border-color: var(--primary-cyan);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

.alternative-words-grid .word-card:active {
    transform: translateY(0);
}

/* Social Media Section */
.social-media-section {
    text-align: center;
    padding: 2rem 0 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: 2rem;
}

.social-media-section h4 {
    color: var(--primary-navy);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--primary-navy);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.9rem;
}

.social-link:hover {
    background: var(--light-blue);
    border-color: var(--primary-cyan);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

.social-icon {
    font-size: 1.2rem;
}

@media (max-width: 480px) {
    .social-links {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .social-link {
        min-width: 150px;
        justify-content: center;
    }
}

/* Mobile responsive adjustments for results */
@media (max-width: 768px) {
    .word-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .word-title {
        font-size: 1.5rem;
    }
    
    .synonyms-grid,
    .antonyms-grid {
        grid-template-columns: 1fr;
    }
    
    .alternative-words-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 0.5rem;
    }
    
    .meaning-section {
        padding: 1rem;
    }
}

/* Words Starting With, Ending With, Containing styles */
.words-starting-grid,
.words-ending-grid,
.words-containing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Initially hide results sections for letter-based searches */
.results-section {
    display: none;
}

.results-section.show {
    display: block;
}

.word-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    transition: var(--transition);
    box-shadow: var(--shadow-light);
}

.word-card:hover {
    background: var(--light-blue);
    border-color: var(--primary-cyan);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.word-header-simple {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.word-text {
    font-weight: 600;
    color: var(--primary-navy);
    font-size: 1.1rem;
}

.magnify-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0.7;
    transition: var(--transition);
    padding: 0.25rem;
    border-radius: 4px;
}

.magnify-btn:hover {
    opacity: 1;
    background: var(--light-blue);
    transform: scale(1.1);
}

.word-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--medium-gray);
}

.letter-count {
    background: var(--light-blue);
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-weight: 500;
}

.search-results-header {
    margin-bottom: 1.5rem;
    text-align: center;
}

.search-results-header h3 {
    color: var(--primary-navy);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.search-results-header p {
    color: var(--medium-gray);
    font-size: 1rem;
}

.no-results {
    text-align: center;
    padding: 2rem;
    color: var(--medium-gray);
    font-size: 1.1rem;
    background: var(--white);
    border-radius: var(--border-radius);
    margin: 1rem 0;
}

/* Mobile responsive adjustments for word grids */
@media (max-width: 768px) {
    .words-starting-grid,
    .words-ending-grid,
    .words-containing-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 0.75rem;
    }
    
    .word-card {
        padding: 0.75rem;
    }
    
    .word-text {
        font-size: 1rem;
    }
    
    .search-results-header h3 {
        font-size: 1.25rem;
    }
}