:root {
    --bg: #f9fafb;
    --panel: #ffffff;
    --panel-alt: #f3f4f6;
    --sidebar: #e5e7eb;
    --sidebar-strong: #d1d5db;
    --text: #111827;
    --muted: #6b7280;
    --primary: #2563eb;
    --primary-soft: #dbeafe;
    --primary-deep: #1d4ed8;
    --border: #e5e7eb;
    --shadow: 0 12px 30px rgba(17, 24, 39, 0.06);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: Arial, sans-serif;
}