:root{--accent: #3a6ea5;--accent-hover: #335f8e;--app-bg: #f4f5f7;--panel: #ffffff;--canvas-bg: #e9eaee;--border: #e7e8eb;--border-soft: #eef0f2;--text: #1f2023;--text-2: #33353b;--text-3: #6b6e76;--text-muted: #9a9ca3;--text-faint: #a7a9b0;--input-border: #d8d9dd;--btn-border: #e0e1e5;--danger: #c0392b;--danger-border: #f0d4d4;--tk-grey: #d9d9d9;--font-ui: system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;--font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;--font-widget: "Helvetica Neue", Helvetica, Arial, sans-serif}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%}body{font-family:var(--font-ui);color:var(--text);background:var(--app-bg)}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit}