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

/* Root Variables - Improved Contrast */
:root {
    --primary-color: #5a7aa0;
    --primary-hover: #4a6a90;
    --secondary-color: #2c3e50;
    --accent-color: #64b5f6;
    --text-color: #e8eaed;
    --text-secondary: #bdc1c6;
    --text-muted: #9aa0a6;
    --background-color: #121212;
    --surface-color: #1e1e1e;
    --card-color: #2d2d2d;
    --border-color: #404040;
    --border-light: #525252;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --error-color: #f44336;
}

/* Base Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    font-size: 16px;
}

h1, h2, h3 {
    color: var(--text-color);
    font-weight: 600;
}

h1 {
    font-size: 24px;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 20px;
    margin-bottom: 12px;
}

h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

p {
    margin-bottom: 16px;
    color: var(--text-secondary);
}

ul {
    list-style-type: disc;
    padding-left: 24px;
}

li {
    margin-bottom: 8px;
    color: var(--text-secondary);
}

/* Layout */
.container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    width: 100%;
    max-width: 1200px;
    padding: 20px;
    margin: 0 auto;
    gap: 20px;
}

.full-width {
    width: 100%;
}

.left-column {
    width: 70%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.right-column {
    width: 30%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

/* Cards */
.card {
    background-color: var(--card-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    margin: 12px;
    padding: 20px;
    width: 100%;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    border-color: var(--border-light);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

.resource-name {
    font-weight: 600;
    display: block;
    color: var(--text-color);
    font-size: 16px;
    margin-bottom: 4px;
}

.resource-management-links {
    font-size: 14px;
    margin-left: 20px;
    color: var(--text-muted);
}

.resource-management-links a {
    color: var(--accent-color);
    text-decoration: none;
}

.resource-management-links a:hover {
    text-decoration: underline;
}

/* Buttons */
.button, .group-button {
    display: inline-block;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    background-color: var(--primary-color);
    color: var(--text-color);
    border: 1px solid var(--primary-color);
    padding: 12px 24px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
    min-height: 44px;
    box-sizing: border-box;
}

.button:hover, .group-button:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.button:active, .group-button:active {
    transform: translateY(0);
}

.button-group {
    display: inline-flex;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.group-button {
    border-radius: 0;
    border-right: 1px solid var(--border-color);
    margin: 0;
}

.group-button:last-child {
    border-right: none;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(2px);
}

.modal.active {
    display: block;
}

.modal-content {
    background-color: var(--card-color);
    border: 1px solid var(--border-color);
    margin: 5% auto;
    padding: 24px;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    position: relative;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    max-height: 90vh;
    overflow-y: auto;
}

.close-button {
    color: var(--text-muted);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: 16px;
    right: 20px;
    z-index: 10;
    transition: color 0.2s ease;
}

.close-button:hover, .close-button:focus {
    color: var(--text-color);
}

.modal img {
    width: 150px;
    height: auto;
    border-radius: 6px;
    flex-shrink: 0;
    border: 1px solid var(--border-color);
}

.modal p {
    flex: 1;
    color: var(--text-secondary);
}

/* Tags */
.resources-tag, .level-tag, .age-tag {
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    display: inline-block;
    margin: 2px 4px;
    border: 1px solid transparent;
}

.resources-tag { 
    background-color: var(--text-muted); 
    color: var(--background-color);
    border-color: var(--text-muted);
}

.level-tag { 
    background-color: var(--error-color);
    color: white;
    border-color: var(--error-color);
}

.age-tag { 
    background-color: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

/* Word Entry */
.word-entry {
    list-style-type: none;
    margin-bottom: 20px;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--surface-color);
    overflow: hidden;
    transition: background-color 0.2s ease;
}

.word-entry:hover {
    background-color: var(--card-color);
}

.word-entry img {
    float: right;
    margin-left: 16px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.word-name {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 4px;
}

.categories {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.4;
}

.categories a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}

.categories a:hover {
    text-decoration: underline;
    color: #81c4fd;
}

/* Image Container */
.image-container {
    float: right;
    margin-left: 12px;
    margin-bottom: 8px;
}

.image-container img {
    border-radius: 6px;
    width: 200px;
    border: 1px solid var(--border-color);
    transition: transform 0.2s ease;
}

.image-container img:hover {
    transform: scale(1.02);
}

.image-actions {
    font-size: 12px;
    margin-top: 6px;
    text-align: center;
}

.image-actions a {
    text-decoration: none;
    color: var(--accent-color);
    margin: 0 4px;
    padding: 2px 6px;
    border-radius: 3px;
    transition: background-color 0.2s ease;
}

.image-actions a:hover {
    background-color: var(--surface-color);
    text-decoration: none;
}

.info {
    margin-bottom: 8px;
    color: var(--text-secondary);
}

/* Form Elements */
input, textarea, select {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 10px 12px;
    border-radius: 4px;
    font-size: 14px;
    width: 100%;
    margin-bottom: 12px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(100, 181, 246, 0.2);
}

label {
    color: var(--text-color);
    font-weight: 500;
    margin-bottom: 4px;
    display: block;
}

/* Links */
a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: #81c4fd;
    text-decoration: underline;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
        align-items: center;
        padding: 16px;
        gap: 16px;
    }
    
    .left-column, .right-column {
        width: 100%;
    }
    
    .card {
        margin: 8px 0;
        padding: 16px;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 20px;
    }
    
    h1 {
        font-size: 22px;
    }
    
    .word-name {
        font-size: 18px;
    }
    
    .image-container img {
        width: 150px;
    }
}

/* Disambiguation Styles */
.modal-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 16px;
    margin-bottom: 20px;
}

.modal-header h3 {
    color: var(--text-color);
    margin-bottom: 0;
    font-size: 20px;
}

.modal-body h4 {
    color: var(--text-color);
    font-size: 16px;
    margin-bottom: 16px;
    font-weight: 600;
}

.existing-meaning {
    margin-bottom: 12px;
}

.existing-meaning form {
    margin: 0;
}

.meaning-select-btn {
    width: 100%;
    padding: 16px 20px;
    text-align: left;
    border: 1px solid var(--border-color);
    background-color: var(--surface-color);
    cursor: pointer;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s ease;
    color: var(--text-color);
    font-family: inherit;
}

.meaning-select-btn:hover {
    background-color: var(--card-color);
    border-color: var(--accent-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.meaning-select-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.meaning-select-btn strong {
    display: block;
    font-size: 16px;
    margin-bottom: 4px;
    color: var(--text-color);
}

.meaning-select-btn small {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.3;
}

/* Section divider */
.modal-body hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 24px 0;
}

/* Add new meaning form styling */
.modal-body form:last-child {
    background-color: var(--surface-color);
    padding: 16px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.modal-body form:last-child button[type="submit"] {
    background-color: var(--success-color);
    border-color: var(--success-color);
    margin-top: 8px;
}

.modal-body form:last-child button[type="submit"]:hover {
    background-color: #45a049;
    border-color: #45a049;
}

/* Responsive disambiguation */
@media (max-width: 768px) {
    .meaning-select-btn {
        padding: 14px 16px;
    }
    
    .meaning-select-btn strong {
        font-size: 15px;
    }
    
    .modal-body form:last-child {
        padding: 12px;
    }
}