:root{--bg: #fafafa;--fg: #111;--muted: #6b7280;--accent: #4f46e5;--line: #e5e7eb;--mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.app{height:100%;display:flex;flex-direction:column}.appbar{height:48px;display:flex;align-items:center;gap:12px;padding:0 12px;border-bottom:1px solid var(--line);background:#fff}.brand{font-weight:600}.spacer{flex:1}.header-api-key{padding:6px 8px;border:1px solid var(--line);border-radius:4px;font-size:13px;width:200px;background:#fff}.header-api-key::placeholder{color:var(--muted)}.link{color:var(--accent);text-decoration:none}.main{flex:1;min-height:0;padding:12px}.workspace.two-col{display:grid;grid-template-columns:minmax(380px,1fr) 1fr;gap:12px;height:100%;min-height:0}@media (max-width: 768px){.workspace.two-col{grid-template-columns:1fr;grid-template-rows:auto 1fr;height:auto;min-height:calc(100vh - 72px)}.left-col{min-height:auto}.right-col{min-height:300px}.toolbar{gap:8px;font-size:13px}.toolbar label{flex-shrink:0}.toolbar button{margin-top:4px}.main{padding:8px}.editor{font-size:16px}.header-api-key{width:140px;font-size:12px}.tab-header{overflow-x:auto;-webkit-overflow-scrolling:touch}.tab-button{padding:10px 12px;font-size:13px;white-space:nowrap;flex-shrink:0}.attack-graph-container{min-height:250px}.graph-placeholder{padding:20px 10px}.graph-info{font-size:11px;bottom:5px;right:5px;padding:3px 6px}.graph-controls{top:5px;right:5px;padding:6px 8px;font-size:12px;gap:8px;flex-direction:column;align-items:stretch}.graph-controls label{flex-direction:column;gap:3px;align-items:flex-start}.graph-controls select{width:100%;font-size:11px}}.left-col,.right-col{display:flex;flex-direction:column;min-height:0}.toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:8px;font-size:14px}.editor{flex:1;min-height:0;resize:none;border:1px solid var(--line);border-radius:6px;padding:10px;font-family:var(--mono);font-size:14px;line-height:1.35;background:#fff}.card{border:1px solid var(--line);border-radius:6px;padding:8px;background:#fff}.scroll{flex:1;min-height:0;overflow:auto}.code{font-family:var(--mono);font-size:13px;white-space:pre-wrap}.muted{color:var(--muted)}.error{color:#d14343}.tab-container{display:flex;flex-direction:column;height:100%;min-height:0}.tab-header{display:flex;border-bottom:1px solid var(--line);background:#fff;margin-bottom:0}.tab-button{padding:8px 16px;border:none;background:transparent;color:var(--muted);font-size:14px;cursor:pointer;border-bottom:2px solid transparent;transition:all .2s ease}.tab-button:hover:not(.disabled){color:var(--fg);background:#f9fafb}.tab-button.active{color:var(--accent);border-bottom-color:var(--accent);background:#fff}.tab-button.disabled{color:#d1d5db;cursor:not-allowed;opacity:.5}.tab-content{flex:1;min-height:0;display:flex;flex-direction:column}.attack-graph-container{flex:1;min-height:0;position:relative;border:1px solid var(--line);border-radius:6px;background:#fff;display:flex;flex-direction:column}.attack-graph-canvas{flex:1;width:100%;height:100%}.graph-placeholder{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;text-align:center}.graph-placeholder p{margin:4px 0}.graph-info{position:absolute;bottom:10px;right:10px;background:#ffffffe6;padding:4px 8px;border-radius:4px;font-size:12px;color:var(--muted);border:1px solid var(--line)}.graph-stats{margin:0}.graph-controls{position:absolute;top:10px;right:10px;background:#fffffff2;padding:8px 12px;border-radius:6px;border:1px solid var(--line);display:flex;gap:12px;align-items:center;font-size:13px;z-index:10;box-shadow:0 2px 4px #0000001a}.graph-controls label{display:flex;align-items:center;gap:6px;color:var(--fg);font-weight:500}.graph-controls select{padding:3px 6px;border:1px solid var(--line);border-radius:3px;font-size:12px;background:#fff;color:var(--fg)}.semantic-info{color:var(--muted);font-weight:400}