:root {
    --bg-color: #f8fafc;
    --bg-rgb: 248, 250, 252;
    --text-color: #0f172a;
    --accent-color: #3b82f6;
    --panel-bg: rgba(255, 255, 255, 0.7);
    --panel-border: rgba(255, 255, 255, 0.5);
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
    --sub-text: #64748b;
    --canvas-bg: #ffffff;
    --grid-color: rgba(0, 0, 0, 0.05);
    --grid-size: 20px;
    --item-bg: rgba(255, 255, 255, 0.4);
    --item-hover-bg: #e2e8f0;
}

[data-theme="dark"] {
    --bg-color: #020617;
    --bg-rgb: 2, 6, 23;
    --text-color: #f8fafc;
    --accent-color: #3b82f6;
    --panel-bg: rgba(15, 23, 42, 0.8);
    --panel-border: rgba(255, 255, 255, 0.1);
    --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    --sub-text: #cbd5e1;
    --canvas-bg: #1e293b;
    --grid-color: rgba(255, 255, 255, 0.1);
    --grid-size: 20px;
    --item-bg: rgba(255, 255, 255, 0.05);
    --item-hover-bg: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    height: 100vh;
    overflow: hidden;
}

.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(12px) saturate(180%);
    border: 1px solid var(--panel-border);
    box-shadow: var(--shadow);
    border-radius: 32px;
}

/* Markdown Rendering Styles */
.markdown-body {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-color);
}

.markdown-body h1, .markdown-body h2, .markdown-body h3 {
    margin-top: 24px;
    margin-bottom: 16px;
    font-weight: 800;
}

.markdown-body h1 { font-size: 1.8em; }
.markdown-body h2 { 
    font-size: 1.4em; 
    border-bottom: 1px solid var(--panel-border);
    padding-bottom: 8px;
    color: var(--accent-color);
}
.markdown-body h3 { font-size: 1.2em; }

.markdown-body p { margin-bottom: 16px; color: var(--sub-text); }

.markdown-body ul, .markdown-body ol {
    padding-left: 20px;
    margin-bottom: 16px;
}

.markdown-body li { margin-bottom: 8px; }

.markdown-body blockquote {
    padding: 12px 20px;
    margin: 16px 0;
    background: var(--item-bg);
    border-left: 4px solid var(--accent-color);
    border-radius: 4px;
    font-style: italic;
    color: var(--sub-text);
}

.markdown-body code {
    background: var(--item-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.9em;
    color: var(--accent-color);
}

.markdown-body pre {
    background: var(--item-bg);
    padding: 16px;
    border-radius: 12px;
    overflow-x: auto;
    margin-bottom: 16px;
}

.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 24px;
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    overflow: hidden;
}

.markdown-body th, .markdown-body td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--panel-border);
    text-align: left;
}

.markdown-body th {
    background: var(--item-bg);
    font-weight: 800;
    color: var(--accent-color);
}

.markdown-body img {
    max-width: 100%;
    border-radius: 16px;
    border: 1px solid var(--panel-border);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    margin: 16px 0;
}