/* Markdown to HTML Converter Tool Styles */

.tool-main {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Mode Selection */
.mode-section {
    background: var(--card-bg, #ffffff);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color, #e1e5e9);
}

.mode-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.mode-tab {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--border-color, #e1e5e9);
    background: var(--tab-bg, #f8f9fa);
    color: var(--text-secondary, #666);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.mode-tab:hover {
    border-color: var(--primary-color, #007bff);
    background: var(--tab-hover, #e9ecef);
}

.mode-tab.active {
    background: var(--primary-color, #007bff);
    color: white;
    border-color: var(--primary-color, #007bff);
}

/* Section Styles */
.input-section,
.config-section,
.content-section,
.stats-section,
.templates-section {
    background: var(--card-bg, #ffffff);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color, #e1e5e9);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color, #007bff);
}

.section-header h2 {
    margin: 0;
    color: var(--text-primary, #333);
    font-size: 1.25rem;
    font-weight: 600;
}

/* Input Area */
.input-area {
    position: relative;
}

#markdownInput {
    width: 100%;
    min-height: 300px;
    padding: 1rem;
    border: 2px solid var(--border-color, #e1e5e9);
    border-radius: 8px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.6;
    resize: vertical;
    background: var(--input-bg, #fafafa);
    transition: border-color 0.3s ease;
}

#markdownInput:focus {
    outline: none;
    border-color: var(--primary-color, #007bff);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.input-stats {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary, #666);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

/* Configuration */
.config-content {
    transition: all 0.3s ease;
    overflow: hidden;
}

.config-content.collapsed {
    max-height: 0;
    padding: 0;
    margin: 0;
}

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

.config-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.config-group label {
    font-weight: 500;
    color: var(--text-primary, #333);
    font-size: 0.9rem;
}

.config-group select {
    padding: 0.75rem;
    border: 2px solid var(--border-color, #e1e5e9);
    border-radius: 6px;
    font-size: 14px;
    background: var(--input-bg, #ffffff);
    transition: border-color 0.3s ease;
}

.config-group select:focus {
    outline: none;
    border-color: var(--primary-color, #007bff);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color, #007bff);
}

.checkbox-group label {
    margin: 0;
    cursor: pointer;
    user-select: none;
}

/* Content Section */
.content-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    min-height: 500px;
}

.content-section.single-column {
    grid-template-columns: 1fr;
}

.preview-section,
.output-section {
    display: flex;
    flex-direction: column;
    background: var(--section-bg, #f8f9fa);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--border-color, #e1e5e9);
}

.preview-area,
.output-area {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Preview Content */
.preview-content {
    flex: 1;
    padding: 1rem;
    background: var(--preview-bg, #ffffff);
    border: 1px solid var(--border-color, #e1e5e9);
    border-radius: 6px;
    overflow-y: auto;
    min-height: 400px;
}

.preview-content.placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary, #666);
    font-style: italic;
}

/* HTML Output */
#htmlOutput {
    flex: 1;
    padding: 1rem;
    border: 1px solid var(--border-color, #e1e5e9);
    border-radius: 6px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 13px;
    line-height: 1.5;
    background: var(--code-bg, #f8f9fa);
    color: var(--code-text, #333);
    overflow: auto;
    white-space: pre;
    margin: 0;
    min-height: 400px;
}

/* Controls */
.input-controls,
.output-controls,
.preview-controls {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--primary-color, #007bff);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover, #0056b3);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--secondary-color, #6c757d);
    color: white;
}

.btn-secondary:hover {
    background: var(--secondary-hover, #545b62);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color, #007bff);
    border: 2px solid var(--primary-color, #007bff);
}

.btn-outline:hover {
    background: var(--primary-color, #007bff);
    color: white;
}

/* Statistics */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: var(--stat-bg, #f8f9fa);
    border-radius: 6px;
    border-left: 4px solid var(--primary-color, #007bff);
}

.stat-label {
    font-weight: 500;
    color: var(--text-secondary, #666);
}

.stat-value {
    font-weight: 600;
    color: var(--text-primary, #333);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

/* Templates */
.templates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.template-item {
    padding: 1rem;
    background: var(--template-bg, #f8f9fa);
    border-radius: 8px;
    border: 1px solid var(--border-color, #e1e5e9);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.template-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.template-item h3 {
    margin: 0 0 0.5rem 0;
    color: var(--text-primary, #333);
    font-size: 1rem;
}

.template-item p {
    margin: 0 0 1rem 0;
    color: var(--text-secondary, #666);
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Fullscreen Modal */
.fullscreen-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--modal-bg, #ffffff);
    z-index: 1000;
    display: flex;
    flex-direction: column;
}

.fullscreen-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--header-bg, #f8f9fa);
    border-bottom: 1px solid var(--border-color, #e1e5e9);
}

.fullscreen-header h2 {
    margin: 0;
    color: var(--text-primary, #333);
}

.fullscreen-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}

#fullscreenPreview {
    max-width: 800px;
    margin: 0 auto;
    background: var(--preview-bg, #ffffff);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Preview Themes */
.preview-content.theme-github {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #24292e;
}

.preview-content.theme-minimal {
    font-family: 'Georgia', serif;
    line-height: 1.8;
    color: #333;
    max-width: 650px;
    margin: 0 auto;
}

.preview-content.theme-academic {
    font-family: 'Times New Roman', serif;
    line-height: 1.7;
    color: #2c3e50;
    text-align: justify;
}

.preview-content.theme-dark {
    background: #2d3748;
    color: #e2e8f0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

/* Markdown Styling */
.preview-content h1,
.preview-content h2,
.preview-content h3,
.preview-content h4,
.preview-content h5,
.preview-content h6 {
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    font-weight: 600;
    line-height: 1.25;
}

.preview-content h1 {
    font-size: 2em;
    border-bottom: 1px solid #eaecef;
    padding-bottom: 0.3em;
}

.preview-content h2 {
    font-size: 1.5em;
    border-bottom: 1px solid #eaecef;
    padding-bottom: 0.3em;
}

.preview-content h3 {
    font-size: 1.25em;
}

.preview-content h4 {
    font-size: 1em;
}

.preview-content h5 {
    font-size: 0.875em;
}

.preview-content h6 {
    font-size: 0.85em;
    color: #6a737d;
}

.preview-content p {
    margin-bottom: 1em;
}

.preview-content blockquote {
    padding: 0 1em;
    color: #6a737d;
    border-left: 0.25em solid #dfe2e5;
    margin: 1em 0;
}

.preview-content ul,
.preview-content ol {
    padding-left: 2em;
    margin-bottom: 1em;
}

.preview-content li {
    margin-bottom: 0.25em;
}

.preview-content code {
    padding: 0.2em 0.4em;
    margin: 0;
    font-size: 85%;
    background-color: rgba(27, 31, 35, 0.05);
    border-radius: 3px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.preview-content pre {
    padding: 1em;
    overflow: auto;
    font-size: 85%;
    line-height: 1.45;
    background-color: #f6f8fa;
    border-radius: 6px;
    margin-bottom: 1em;
}

.preview-content pre code {
    background: transparent;
    padding: 0;
    margin: 0;
    font-size: 100%;
}

.preview-content table {
    border-spacing: 0;
    border-collapse: collapse;
    width: 100%;
    margin-bottom: 1em;
}

.preview-content table th,
.preview-content table td {
    padding: 6px 13px;
    border: 1px solid #dfe2e5;
}

.preview-content table th {
    font-weight: 600;
    background-color: #f6f8fa;
}

.preview-content table tr:nth-child(2n) {
    background-color: #f6f8fa;
}

.preview-content img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

.preview-content a {
    color: #0366d6;
    text-decoration: none;
}

.preview-content a:hover {
    text-decoration: underline;
}

.preview-content hr {
    height: 0.25em;
    padding: 0;
    margin: 24px 0;
    background-color: #e1e4e8;
    border: 0;
}

/* Task Lists */
.preview-content .task-list-item {
    list-style-type: none;
}

.preview-content .task-list-item input {
    margin: 0 0.2em 0.25em -1.6em;
    vertical-align: middle;
}

/* Copy Feedback */
.copy-success {
    background: var(--success-color, #28a745) !important;
    color: white !important;
}

/* Loading State */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .content-section {
        grid-template-columns: 1fr;
    }
    
    .mode-tabs {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .tool-main {
        padding: 1rem;
        gap: 1rem;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .input-controls,
    .output-controls,
    .preview-controls {
        width: 100%;
        justify-content: flex-start;
    }
    
    .config-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .templates-grid {
        grid-template-columns: 1fr;
    }
    
    #markdownInput,
    #htmlOutput {
        min-height: 250px;
        font-size: 13px;
    }
    
    .preview-content {
        min-height: 250px;
    }
    
    .fullscreen-content {
        padding: 1rem;
    }
    
    #fullscreenPreview {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .tool-main {
        padding: 0.5rem;
    }
    
    .input-section,
    .config-section,
    .content-section,
    .stats-section,
    .templates-section {
        padding: 1rem;
    }
    
    .btn {
        padding: 0.6rem 1rem;
        font-size: 13px;
    }
    
    .mode-tab {
        padding: 0.6rem 1rem;
        font-size: 13px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --card-bg: #2d3748;
        --input-bg: #4a5568;
        --code-bg: #1a202c;
        --code-text: #e2e8f0;
        --text-primary: #e2e8f0;
        --text-secondary: #a0aec0;
        --border-color: #4a5568;
        --stat-bg: #4a5568;
        --template-bg: #4a5568;
        --section-bg: #4a5568;
        --preview-bg: #2d3748;
        --tab-bg: #4a5568;
        --tab-hover: #718096;
        --modal-bg: #1a202c;
        --header-bg: #2d3748;
    }
}