:root{--brand: #e67300;--brand-dark: #b35900;--brand-tint: #fff4e5;--brand-soft: #ffd8a8;--accent: #1e3a5f;--text: #1f2937;--text-muted: #4b5563;--border: #d1d5db;--surface: #ffffff;--surface-alt: #f3f4f6;--error: #b91c1c}app-root{display:block;margin:0;padding:0}body{margin:0;padding:0;color:var(--text);background:var(--surface);font-family:Segoe UI,system-ui,-apple-system,sans-serif}a{color:var(--brand)}.content>*{max-width:100%;min-width:0}.content>app-unit-converter{flex:1 1 620px;max-width:800px}