:root {
    --sw-bg: #f4f7fb;
    --sw-surface: #ffffff;
    --sw-surface-soft: #eef4ff;
    --sw-sidebar: #0f172a;
    --sw-sidebar-soft: #18233a;
    --sw-primary: #0f8b6f;
    --sw-primary-strong: #05634f;
    --sw-accent: #25d366;
    --sw-text: #0f172a;
    --sw-muted: #64748b;
    --sw-border: #dbe3ef;
    --sw-warning: #f59e0b;
    --sw-danger: #ef4444;
    --sw-radius: 18px;
    --sw-radius-sm: 13px;
    --sw-shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
    --sw-font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
    margin: 0;
    background: var(--sw-bg);
    color: var(--sw-text);
    font-family: var(--sw-font);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
.sw-ui-icon {
    width: 18px;
    height: 18px;
    display: inline-block;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex: 0 0 auto;
}
.sw-ui-icon--sm { width: 14px; height: 14px; }