:root{--bg: #0f1117;--panel: #171a23;--panel-border: #262b38;--text: #e6e8ee;--muted: #8b91a0;--accent: #4f8cff;--accent-hover: #3d78e8;--danger: #ff5c5c;--mono: "SFMono-Regular", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:14px}.app{display:flex;flex-direction:column;height:100%}.app-header{padding:14px 20px;border-bottom:1px solid var(--panel-border);display:flex;align-items:baseline;gap:12px}.app-header h1{margin:0;font-size:18px;font-weight:600;letter-spacing:-.02em}.subtitle{color:var(--muted);font-size:13px}.layout{display:flex;flex:1;min-height:0}.sidebar{width:280px;min-width:280px;overflow-y:auto;border-right:1px solid 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18px;cursor:pointer;font-size:13px;font-weight:600}.run-btn:hover:not(:disabled){background:var(--accent-hover)}.run-btn:disabled{opacity:.5;cursor:default}.sql-editor .cm-editor{border-top:1px solid var(--panel-border);font-size:14px}.sql-editor .cm-editor.cm-focused{outline:none}.sql-editor .cm-scroller{font-family:var(--mono);line-height:1.6}.sql-editor .cm-content{padding:10px 14px}.sql-editor .cm-placeholder{color:var(--muted)}.error-banner{background:#ff5c5c1f;border-bottom:1px solid rgba(255,92,92,.4);color:var(--danger);padding:10px 14px;font-family:var(--mono);font-size:13px}.results{flex:1;overflow:auto;display:flex;flex-direction:column}.results-meta{display:flex;gap:16px;align-items:center;padding:8px 14px;color:var(--muted);font-size:12px;border-bottom:1px solid var(--panel-border)}.truncated-banner{color:#f5a623;font-weight:600}.table-wrap{overflow:auto;flex:1}table{border-collapse:collapse;width:100%;font-size:13px}th{position:sticky;top:0;background:var(--panel);color:var(--text);font-weight:600;text-align:left;padding:8px 12px;border-bottom:1px solid var(--panel-border);cursor:pointer;white-space:nowrap;-webkit-user-select:none;user-select:none}th:hover{color:var(--accent)}td{padding:6px 12px;border-bottom:1px solid #1d2230;font-family:var(--mono);white-space:nowrap}tbody tr:hover{background:#161a24}.null-cell{color:var(--muted);font-style:italic}.empty-state{padding:32px;color:var(--muted);text-align:center}@media (max-width: 720px){.layout{flex-direction:column}.sidebar{width:100%;min-width:0;border-right:none;border-bottom:1px solid var(--panel-border)}}.about-btn{margin-left:auto;background:none;border:1px solid var(--panel-border);color:var(--text);border-radius:6px;padding:5px 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