:root {
    --color-bg: #f4f6f9;
    --color-panel: #ffffff;
    --color-border: #e5e7eb;
    --color-text: #111827;
    --color-muted: #6b7280;
    --color-primary: #1d4ed8;
    --color-sidebar: #0f172a;
    --color-sidebar-text: #cbd5e1;
    --color-sidebar-active: #2563eb;
    --radius: 14px;
    --shadow: 0 10px 30px rgba(15, 23, 42, .08);
}

* {
    box-sizing: border-box;
}

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

a {
    color: inherit;
    text-decoration: none;
}