:root{--bg: #0d1117;--surface: #111827;--border: #1f2937;--green: #10b981;--green-dk: #059669;--text: #e5e7eb;--muted: #6b7280;--danger: #ef4444;--warn: #f59e0b;--blue: #3b82f6;--radius: 8px;--sidebar-w: 220px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,sans-serif;font-size:14px;line-height:1.5}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:inherit;font-size:14px}