/* ====================================
   Modern Dictionary Application Styles
   Version: 1.0
   Author: Claude
   ==================================== */

/* CSS Variables for Easy Theming */
:root {
    /* Primary Colors */
    --primary-color: #4361ee;
    --primary-dark: #3f37c9;
    --primary-light: #4895ef;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Secondary Colors */
    --secondary-color: #3f37c9;
    --accent-color: #4895ef;
    --success-color: #06d6a0;
    --warning-color: #f77f00;
    --danger-color: #d90429;
    
    /* Text Colors */
    --text-dark: #2b2d42;
    --text-medium: #495057;
    --text-light: #8d99ae;
    --text-white: #ffffff;
    
    /* Background Colors */
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-gray: #e9ecef;
    
    /* UI Elements */
    --border-color: #e0e0e0;
    --border-radius: 12px;
    --border-radius-sm: 6px;
    --border-radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
    --shadow-xl: 0 12px 32px rgba(0,0,0,0.18);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
}

/* ====================================
   Global Resets and Base Styles
   ==================================== */

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

body {
    font-family: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

/* ====================================
   Typography
   ==================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

/* ====================================
   Layout Components
   ==================================== */

.dictionary-wrapper,
.search-wrapper {
    background: var(--primary-gradient);
    min-height: 100vh;
    padding: var(--spacing-xl) 0;
}

.dictionary-header,
.search-header {
    text-align: center;
    color: var(--text-white);
    margin-bottom: var(--spacing-xl);
    animation: fadeInDown 0.6s ease-out;
}

.dictionary-header h1,
.search-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.dictionary-header p,
.search-header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* ====================================
   Card Components
   ==================================== */

.dictionary-card,
.search-card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.6s ease-out;
    overflow: hidden;
}

.result-card {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--primary-color);
    transition: all var(--transition-normal);
}

.result-card:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

/* ====================================
   Search Components
   ==================================== */

.search-section,
.search-controls {
    padding: var(--spacing-xl);
    background: linear-gradient(to bottom, var(--bg-white), var(--bg-light));
}

.search-box-wrapper {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.search-input-group,
.search-input-wrapper {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.search-input-group input,
.search-input-wrapper input {
    flex: 1;
    min-width: 250px;
    padding: var(--spacing-md) 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: all var(--transition-normal);
}

.search-input-group input:focus,
.search-input-wrapper input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.search-input-wrapper select {
    flex: 0 1 200px;
    padding: var(--spacing-md) 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    background: var(--bg-white);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.search-input-wrapper select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* ====================================
   Button Styles
   ==================================== */

.btn-search,
.btn-primary-gradient {
    padding: var(--spacing-md) 2.5rem;
    background: var(--primary-gradient);
    color: var(--text-white);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-search:hover,
.btn-primary-gradient:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-download {
    padding: 0.75rem 1.5rem;
    background: var(--success-color);
    color: var(--text-white);
    border: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-download:hover {
    background: #05b88c;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.collapse-btn {
    background: transparent;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
}

.collapse-btn:hover {
    background: var(--bg-light);
}

/* ====================================
   Filter Components
   ==================================== */

.filter-options,
.filter-sidebar {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.filter-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
}

.filter-item {
    display: flex;
    align-items: center;
    padding: 0.75rem;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.filter-item:hover {
    background: var(--bg-light);
}

.filter-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: 0.75rem;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.filter-item label {
    cursor: pointer;
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-dark);
}

/* ====================================
   Results Components
   ==================================== */

.results-section {
    padding: var(--spacing-xl);
}

.results-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.results-count {
    font-size: 1.1rem;
    color: var(--text-dark);
    font-weight: 600;
}

.results-count span {
    color: var(--primary-color);
    font-size: 1.3rem;
}

.results-body {
    padding: var(--spacing-xl);
}

.results-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-xl);
}

.result-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.result-content {
    color: var(--text-dark);
    line-height: 1.8;
}

.result-content b {
    color: var(--secondary-color);
}

/* ====================================
   Word Display Components
   ==================================== */

.word-part {
    display: inline-flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
}

.word-segment {
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
}

.word-prefix {
    background: #ffccd5;
    color: #c9184a;
}

.word-root {
    background: #a8dadc;
    color: #1d3557;
    font-weight: 700;
}

.word-suffix {
    background: #caf0f8;
    color: #023e8a;
}

/* ====================================
   Badge Components
   ==================================== */

.info-badge {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    background: var(--accent-color);
    color: var(--text-white);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-right: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.count-badge {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    background: var(--accent-color);
    color: var(--text-white);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ====================================
   Table Styles
   ==================================== */

.results-table-wrapper {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.modern-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.modern-table thead {
    background: var(--primary-gradient);
    color: var(--text-white);
}

.modern-table thead th {
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    text-align: left;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

.modern-table tbody tr {
    border-bottom: 1px solid var(--bg-light);
    transition: all var(--transition-fast);
}

.modern-table tbody tr:hover {
    background: #f0f4ff;
}

.modern-table tbody td {
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-dark);
}

.modern-table b {
    background: linear-gradient(120deg, #f6e58d 0%, #f9ca24 100%);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-weight: 700;
}

.word-cell {
    font-weight: 500;
    font-size: 1.05rem;
}

/* ====================================
   Detail Sections
   ==================================== */

.detail-section {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-white);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

.detail-item {
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--bg-light);
}

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

.detail-label {
    font-weight: 600;
    color: var(--secondary-color);
    margin-right: var(--spacing-sm);
}

.detail-value {
    color: var(--text-dark);
}

/* ====================================
   Media Elements
   ==================================== */

.audio-player {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-light);
    border-radius: 20px;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.audio-player:hover {
    background: var(--primary-color);
    color: var(--text-white);
}

.image-preview {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin-top: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

/* ====================================
   State Styles
   ==================================== */

.loading {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-light);
}

.no-results {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-light);
}

.no-results i {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.no-results h4 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

/* ====================================
   Pagination
   ==================================== */

.pagination-wrapper {
    display: flex;
    justify-content: center;
    padding: var(--spacing-xl);
}

/* ====================================
   Animations
   ==================================== */

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

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

/* ====================================
   Responsive Design
   ==================================== */

@media (max-width: 1200px) {
    .results-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 992px) {
    .filter-sidebar {
        position: relative;
        top: 0;
    }
    
    .filter-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .dictionary-header h1,
    .search-header h1 {
        font-size: 2rem;
    }
    
    .search-input-group,
    .search-input-wrapper {
        flex-direction: column;
    }
    
    .search-input-group input,
    .search-input-wrapper input,
    .search-input-wrapper select,
    .btn-search,
    .btn-primary-gradient {
        width: 100%;
    }
    
    .filter-grid {
        grid-template-columns: 1fr;
    }
    
    .dictionary-wrapper,
    .search-wrapper {
        padding: var(--spacing-md) 0;
    }
    
    .search-section,
    .search-controls,
    .results-section,
    .results-body {
        padding: 1.25rem;
    }
    
    .results-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .modern-table thead th,
    .modern-table tbody td {
        padding: 0.75rem var(--spacing-md);
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    
    .result-card {
        padding: var(--spacing-md);
    }
}

/* ====================================
   Print Styles
   ==================================== */

@media print {
    .dictionary-wrapper,
    .search-wrapper {
        background: white;
    }
    
    .btn-search,
    .btn-download,
    .filter-options,
    .filter-sidebar {
        display: none;
    }
    
    .result-card {
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid var(--border-color);
    }
}

/* ====================================
   Utility Classes
   ==================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }

.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.align-items-center { align-items: center; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }

.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }

.rounded { border-radius: var(--border-radius); }
.rounded-sm { border-radius: var(--border-radius-sm); }
.rounded-lg { border-radius: var(--border-radius-lg); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }