/**
 * markdown_tools.css - Design System for Markdown & MD Online Tools Suite
 * alexzaremsky.com - Clean Light Theme, Fast UI, Responsive
 */

/* ==========================================================================
   1. Workbench Container & Grid
   ========================================================================== */
.md-workbench {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
    display: flex;
    flex-direction: column;
    margin: 24px 0;
    overflow: hidden;
    position: relative;
    transition: all 0.2s ease;
}

.md-workbench.drag-over {
    border-color: #2563eb;
    background: #eff6ff;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

/* Direction Switcher Banner (for Converters) */
.direction-switcher-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-bottom: 1px solid #e2e8f0;
    padding: 10px 18px;
    font-size: 0.88rem;
    font-weight: 600;
    color: #334155;
}

.direction-switch-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: #2563eb;
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 0.82rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.15s ease;
}

.direction-switch-link:hover {
    background: #eff6ff;
    border-color: #93c5fd;
    color: #1d4ed8;
    transform: translateY(-1px);
}

/* ==========================================================================
   2. Formatting Toolbar & View Controls
   ========================================================================== */
.md-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 16px;
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
}

.md-toolbar-group {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    padding: 3px;
    border-radius: 8px;
}

.md-btn-tool {
    background: transparent;
    border: none;
    color: #475569;
    padding: 6px 9px;
    border-radius: 5px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 30px;
    height: 30px;
    transition: all 0.15s ease;
}

.md-btn-tool:hover {
    background: #f1f5f9;
    color: #0f172a;
}

.md-btn-tool:active {
    background: #e2e8f0;
}

.md-toolbar-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* View Mode Switcher (Tabs on Mobile/Tablet) */
.view-tabs {
    display: inline-flex;
    background: #e2e8f0;
    padding: 3px;
    border-radius: 8px;
}

.view-tab-btn {
    background: transparent;
    border: none;
    color: #64748b;
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.view-tab-btn.active {
    background: #ffffff;
    color: #0f172a;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* ==========================================================================
   3. Split Panes (Editor + Preview)
   ========================================================================== */
.md-split-panes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    height: 640px;
    min-height: 520px;
    max-height: 80vh;
    position: relative;
    overflow: hidden;
}

.md-editor-pane {
    display: flex;
    flex-direction: column;
    height: 100%;
    border-right: 1px solid #e2e8f0;
    background: #ffffff;
    position: relative;
    overflow: hidden;
}

.md-textarea {
    width: 100%;
    height: 100%;
    flex: 1;
    padding: 20px;
    border: none;
    outline: none;
    resize: none;
    font-family: 'JetBrains Mono', Consolas, Monaco, monospace;
    font-size: 0.92rem;
    line-height: 1.65;
    color: #1e293b;
    background: transparent;
    box-sizing: border-box;
    overflow-y: auto;
    overflow-x: auto;
}

.md-textarea::placeholder {
    color: #94a3b8;
}

.md-preview-pane {
    height: 100%;
    padding: 24px 28px;
    overflow-y: auto;
    overflow-x: hidden;
    background: #ffffff;
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.95rem;
    line-height: 1.7;
    color: #334155;
    box-sizing: border-box;
}

/* Sleek Scrollbars */
.md-textarea::-webkit-scrollbar,
.md-preview-pane::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.md-textarea::-webkit-scrollbar-track,
.md-preview-pane::-webkit-scrollbar-track {
    background: #f8fafc;
}

.md-textarea::-webkit-scrollbar-thumb,
.md-preview-pane::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

.md-textarea::-webkit-scrollbar-thumb:hover,
.md-preview-pane::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* View State Overrides */
.view-edit .md-split-panes {
    grid-template-columns: 1fr;
}
.view-edit .md-preview-pane {
    display: none;
}
.view-edit .md-editor-pane {
    border-right: none;
}

.view-preview .md-split-panes {
    grid-template-columns: 1fr;
}
.view-preview .md-editor-pane {
    display: none;
}

/* ==========================================================================
   4. Markdown Preview Typography & Elements
   ========================================================================== */
.md-preview-pane h1,
.md-preview-pane h2,
.md-preview-pane h3,
.md-preview-pane h4 {
    color: #0f172a;
    font-weight: 700;
    margin-top: 1.4em;
    margin-bottom: 0.6em;
    line-height: 1.3;
}

.md-preview-pane h1 {
    font-size: 1.8rem;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 8px;
    margin-top: 0.2em;
}

.md-preview-pane h2 {
    font-size: 1.4rem;
    border-bottom: 1px solid #f1f5f9;
    padding-bottom: 6px;
}

.md-preview-pane h3 {
    font-size: 1.15rem;
}

.md-preview-pane p {
    margin-bottom: 1.1em;
}

.md-preview-pane blockquote {
    border-left: 4px solid #3b82f6;
    background: #f8fafc;
    padding: 10px 16px;
    margin: 16px 0;
    color: #475569;
    border-radius: 0 8px 8px 0;
    font-style: italic;
}

.md-preview-pane pre {
    background: #0f172a;
    color: #e2e8f0;
    padding: 16px 20px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'JetBrains Mono', Consolas, Monaco, monospace;
    font-size: 0.88rem;
    line-height: 1.55;
    margin: 16px 0;
    border: 1px solid #1e293b;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
}

.md-preview-pane code {
    background: #f1f5f9;
    color: #0f172a;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', Consolas, monospace;
    font-size: 0.85em;
}

.md-preview-pane pre code {
    background: transparent;
    color: inherit;
    padding: 0;
    font-family: inherit;
}

/* Prism.js & Highlight.js Syntax Highlighting Palette (One Dark / VS Code Dark+) */
.hljs-comment,
.hljs-quote,
.token.comment,
.token.prolog,
.token.doctype,
.token.cdata {
    color: #64748b !important;
    font-style: italic;
}

.hljs-punctuation,
.token.punctuation {
    color: #94a3b8 !important;
}

.token.namespace {
    opacity: .7;
}

.hljs-keyword,
.token.keyword,
.token.atrule {
    color: #ec4899 !important; /* Vibrant Pink / Magenta */
    font-weight: 600;
}

.hljs-title.function_,
.hljs-function,
.token.function {
    color: #60a5fa !important; /* Bright Blue */
    font-weight: 600;
}

.hljs-title.class_,
.hljs-class,
.token.class-name {
    color: #38bdf8 !important; /* Sky Blue / Cyan */
}

.hljs-string,
.hljs-regexp,
.token.string,
.token.char,
.token.builtin,
.token.inserted {
    color: #34d399 !important; /* Emerald Green */
}

.hljs-number,
.hljs-literal,
.hljs-boolean,
.token.number,
.token.boolean {
    color: #f59e0b !important; /* Amber / Gold */
}

.hljs-built_in,
.hljs-params,
.hljs-property,
.token.property,
.token.constant {
    color: #fbbf24 !important; /* Warm Amber */
}

.hljs-variable,
.hljs-template-variable,
.hljs-attr,
.hljs-attribute,
.token.variable,
.token.regex {
    color: #c084fc !important; /* Purple */
}

.hljs-tag,
.hljs-name,
.token.tag {
    color: #f43f5e !important; /* Coral Rose */
}

.hljs-operator,
.token.operator,
.token.entity,
.token.url {
    color: #38bdf8 !important;
}

.hljs-deleted,
.token.deleted {
    color: #f87171 !important; /* Coral red */
}

.md-preview-pane table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 0.9rem;
}

.md-preview-pane th,
.md-preview-pane td {
    border: 1px solid #e2e8f0;
    padding: 10px 14px;
    text-align: left;
}

.md-preview-pane th {
    background: #f8fafc;
    font-weight: 700;
    color: #1e293b;
}

.md-preview-pane tr:nth-child(even) {
    background: #fafafa;
}

.md-preview-pane ul,
.md-preview-pane ol {
    padding-left: 24px;
    margin-bottom: 1.1em;
}

.md-preview-pane li {
    margin-bottom: 4px;
}

.md-preview-pane hr {
    border: none;
    border-top: 1px solid #e2e8f0;
    margin: 24px 0;
}

.md-preview-pane img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 12px 0;
}

/* Mermaid SVG Charts */
.mermaid-chart {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
    text-align: center;
    overflow-x: auto;
}

/* KaTeX Math Display */
.katex-display-wrapper {
    display: block;
    text-align: center;
    margin: 18px 0;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 8px 4px;
}

.katex-display-wrapper .katex-display {
    display: inline-block !important;
    text-align: left;
    margin: 0 !important;
}

/* Dark Theme Preview Option */
.theme-dark .md-preview-pane {
    background: #0f172a;
    color: #cbd5e1;
}

.theme-dark .md-preview-pane h1,
.theme-dark .md-preview-pane h2,
.theme-dark .md-preview-pane h3 {
    color: #f8fafc;
    border-color: #1e293b;
}

.theme-dark .md-preview-pane blockquote {
    background: #1e293b;
    color: #94a3b8;
    border-color: #60a5fa;
}

.theme-dark .md-preview-pane th {
    background: #1e293b;
    color: #f8fafc;
}

.theme-dark .md-preview-pane td,
.theme-dark .md-preview-pane th {
    border-color: #334155;
}

.theme-dark .md-preview-pane code {
    background: #1e293b;
    color: #93c5fd;
}

.theme-dark .md-preview-pane .katex {
    color: #f8fafc;
}

/* ==========================================================================
   5. Status Bar & Action Footer
   ========================================================================== */
.md-statusbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding: 10px 18px;
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
    font-size: 0.82rem;
    color: #64748b;
}

.md-stats-group {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.md-stat-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.md-stat-item strong {
    color: #0f172a;
    font-weight: 700;
}

.md-actions-group {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.btn-action-primary {
    background: #2563eb;
    color: #ffffff;
    border: none;
    padding: 7px 16px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.15s ease;
}

.btn-action-primary:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.btn-action-secondary {
    background: #ffffff;
    color: #334155;
    border: 1px solid #cbd5e1;
    padding: 6px 13px;
    border-radius: 6px;
    font-size: 0.84rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: all 0.15s ease;
}

.btn-action-secondary:hover {
    background: #f1f5f9;
    border-color: #94a3b8;
    color: #0f172a;
}

/* Toast Notifications */
.md-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #0f172a;
    color: #ffffff;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.2);
    z-index: 9999;
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.md-toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* Badge Generator Card */
.readme-badge-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 16px 20px;
    margin: 28px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.readme-badge-info h4 {
    margin: 0 0 4px 0;
    font-size: 0.95rem;
    color: #0f172a;
}

.readme-badge-info p {
    margin: 0;
    font-size: 0.85rem;
    color: #64748b;
}

/* ==========================================================================
   6. Mobile & Responsive Layout
   ========================================================================== */
@media (max-width: 900px) {
    .md-split-panes {
        grid-template-columns: 1fr !important;
        min-height: 440px;
    }
    
    .md-workbench:not(.view-preview):not(.view-edit) .md-preview-pane {
        display: none;
    }

    .md-editor-pane {
        border-right: none;
    }

    .md-textarea {
        min-height: 400px;
        padding: 14px;
    }

    .md-toolbar {
        padding: 8px 12px;
    }
}

@media print {
    body * {
        visibility: hidden;
    }
    .md-preview-pane,
    .md-preview-pane * {
        visibility: visible;
    }
    .md-preview-pane {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        margin: 0;
        padding: 0;
    }
    .md-toolbar,
    .md-statusbar,
    .navbar,
    .footer,
    .geo-box,
    .faq-section {
        display: none !important;
    }
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}