:root {
    --bg-color: #0F0F23;
    --primary-color: #6C5CE7;
    --secondary-color: #A29BFE;
    --accent-color: #FD79A8;
    --text-color: #FFFFFF;
    --text-muted: #B2BEC3;
    --border-color: rgba(255, 255, 255, 0.1);
    --toolbar-bg: rgba(255, 255, 255, 0.05);
    --pane-bg: rgba(255, 255, 255, 0.03);
    --resizer-hover: #6C5CE7;
}

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

body, html {
    height: 100%;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow: hidden;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Toolbar */
.toolbar {
    height: 60px;
    background: var(--toolbar-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 10;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--secondary-color);
}

.actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.actions button {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 8px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}

.actions button:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
}

.actions button i {
    width: 18px;
    height: 18px;
}

.divider-v {
    width: 1px;
    height: 24px;
    background: var(--border-color);
    margin: 0 5px;
}

#copy-html {
    background: var(--primary-color);
    color: white;
    padding: 8px 15px;
}

#copy-html:hover {
    background: var(--secondary-color);
}

/* Main Layout */
.editor-container {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.pane {
    height: 100%;
    overflow-y: auto;
}

.editor-pane {
    width: 50%;
    background: var(--pane-bg);
}

.resizer {
    width: 4px;
    cursor: col-resize;
    background: var(--border-color);
    transition: background 0.3s;
}

.resizer:hover, .resizer.active {
    background: var(--resizer-hover);
}

.preview-pane {
    flex: 1;
    background: #0D1117; /* GitHub Darkish */
    padding: 40px;
}

/* Textarea Styling */
#markdown-input {
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: #E6EDF3;
    padding: 40px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    line-height: 1.6;
    resize: none;
}

/* Markdown Preview Styling (GitHub-like) */
.markdown-body {
    color: #E6EDF3;
    font-size: 16px;
    line-height: 1.5;
    word-wrap: break-word;
    max-width: 800px;
    margin: 0 auto;
}

.markdown-body h1, .markdown-body h2, .markdown-body h3 {
    margin-top: 24px;
    margin-bottom: 16px;
    font-weight: 600;
    line-height: 1.25;
}

.markdown-body h1 { font-size: 2em; padding-bottom: 0.3em; border-bottom: 1px solid var(--border-color); }
.markdown-body h2 { font-size: 1.5em; padding-bottom: 0.3em; border-bottom: 1px solid var(--border-color); }

.markdown-body a { color: #4493f8; text-decoration: none; }
.markdown-body a:hover { text-decoration: underline; }

.markdown-body code {
    padding: 0.2em 0.4em;
    margin: 0;
    font-size: 85%;
    background-color: rgba(110, 118, 129, 0.4);
    border-radius: 6px;
}

.markdown-body pre {
    padding: 16px;
    overflow: auto;
    font-size: 85%;
    line-height: 1.45;
    background-color: #161b22;
    border-radius: 6px;
    margin-bottom: 16px;
}

.markdown-body blockquote {
    padding: 0 1em;
    color: #8b949e;
    border-left: 0.25em solid #30363d;
    margin-bottom: 16px;
}

.markdown-body table {
    display: block;
    width: 100%;
    width: max-content;
    max-width: 100%;
    overflow: auto;
    margin-bottom: 16px;
    border-spacing: 0;
    border-collapse: collapse;
}

.markdown-body table th, .markdown-body table td {
    padding: 6px 13px;
    border: 1px solid #30363d;
}

.markdown-body table tr {
    background-color: #0d1117;
    border-top: 1px solid #21262d;
}

.markdown-body table tr:nth-child(2n) {
    background-color: #161b22;
}

.markdown-body ul, .markdown-body ol {
    padding-left: 2em;
    margin-bottom: 16px;
}

.markdown-body img {
    max-width: 100%;
    box-sizing: content-box;
}

/* Status Bar */
.status-bar {
    height: 30px;
    background: var(--toolbar-bg);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 20px;
    font-size: 12px;
    color: var(--text-muted);
    gap: 20px;
}

/* Responsive */
@media (max-width: 768px) {
    .toolbar {
        height: auto;
        padding: 10px;
        flex-direction: column;
        gap: 10px;
    }

    .actions {
        flex-wrap: wrap;
        justify-content: center;
    }

    .actions button span {
        display: none;
    }

    .editor-container {
        flex-direction: column;
    }
    .editor-pane, .preview-pane {
        width: 100% !important;
        height: 50%;
    }
    .resizer {
        width: 100%;
        height: 4px;
        cursor: row-resize;
    }
}