*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--sidebar-bg: #1a1d23;--sidebar-hover: #252930;--sidebar-active: #2d3139;--sidebar-border: #2e3340;--sidebar-text: #c9d1d9;--sidebar-muted: #6e7681;--sidebar-width: 240px;--main-bg: #ffffff;--main-surface: #f6f8fa;--main-border: #d0d7de;--main-text: #24292f;--main-muted: #57606a;--accent: #0969da;--accent-hover: #0550ae;--accent-light: #ddf4ff;--danger: #cf222e;--danger-hover: #a40e26;--danger-light: #ffebe9;--success: #1a7f37;--success-light: #dafbe1;--warning: #9a6700;--warning-light: #fff8c5;--radius: 6px;--radius-lg: 10px;--shadow-sm: 0 1px 3px rgba(0,0,0,.08);--shadow-md: 0 4px 12px rgba(0,0,0,.12);--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;--font-mono: "SFMono-Regular", "Cascadia Code", "Consolas", "Liberation Mono", monospace;--transition: .15s ease;--bottom-tab-height: 60px}html,body,#root{height:100%;font-family:var(--font);font-size:14px;color:var(--main-text);background:var(--main-bg);-webkit-font-smoothing:antialiased}.app-layout{display:flex;height:100vh;overflow:hidden}.app-content{flex:1;overflow:hidden;display:flex;flex-direction:column}.sidebar{width:var(--sidebar-width);background:var(--sidebar-bg);border-right:1px solid var(--sidebar-border);display:flex;flex-direction:column;flex-shrink:0;overflow-y:auto}.sidebar-logo{display:flex;align-items:center;gap:10px;padding:18px 16px;border-bottom:1px solid var(--sidebar-border);color:#fff;font-size:15px;font-weight:600;letter-spacing:-.2px}.sidebar-logo svg{flex-shrink:0}.sidebar-nav{padding:8px 0;flex:1}.sidebar-nav-item{display:flex;align-items:center;gap:10px;padding:9px 16px;color:var(--sidebar-text);text-decoration:none;font-size:13px;font-weight:400;border-radius:0;transition:background var(--transition),color var(--transition);cursor:pointer;border:none;background:none;width:100%;text-align:left}.sidebar-nav-item:hover{background:var(--sidebar-hover);color:#fff}.sidebar-nav-item.active{background:var(--sidebar-active);color:#fff;font-weight:500}.sidebar-nav-item svg{flex-shrink:0;opacity:.7}.sidebar-nav-item.active svg,.sidebar-nav-item:hover svg{opacity:1}.sidebar-footer{padding:12px 16px;border-top:1px solid var(--sidebar-border)}.sidebar-user{font-size:12px;color:var(--sidebar-muted);margin-bottom:8px;padding:0 2px}.sidebar-user strong{color:var(--sidebar-text)}.sidebar-logout-btn{display:flex;align-items:center;gap:8px;width:100%;padding:8px 10px;min-height:36px;background:none;border:1px solid var(--sidebar-border);border-radius:var(--radius);color:var(--sidebar-muted);font-size:13px;cursor:pointer;transition:all var(--transition)}.sidebar-logout-btn:hover{background:var(--sidebar-hover);color:var(--sidebar-text);border-color:#3e4451}.mobile-header{display:none;align-items:center;gap:10px;padding:0 16px;height:52px;background:var(--sidebar-bg);border-bottom:1px solid var(--sidebar-border);flex-shrink:0}.mobile-header-title{display:flex;align-items:center;gap:8px;color:#fff;font-size:15px;font-weight:600;flex:1}.mobile-header-user{font-size:12px;color:var(--sidebar-muted);max-width:100px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mobile-logout-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:none;border:1px solid var(--sidebar-border);border-radius:var(--radius);color:var(--sidebar-muted);cursor:pointer;transition:all var(--transition);flex-shrink:0}.mobile-logout-btn:hover{background:var(--sidebar-hover);color:var(--sidebar-text)}.bottom-tab-bar{display:none;position:fixed;bottom:0;left:0;right:0;height:var(--bottom-tab-height);background:var(--sidebar-bg);border-top:1px solid var(--sidebar-border);z-index:100}.bottom-tab{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;flex:1;color:var(--sidebar-muted);text-decoration:none;font-size:11px;font-weight:400;transition:color var(--transition);padding:6px 4px;min-height:44px}.bottom-tab svg{opacity:.6;transition:opacity var(--transition)}.bottom-tab.active{color:#fff}.bottom-tab.active svg{opacity:1}.bottom-tab:hover{color:var(--sidebar-text)}.main-content{flex:1;overflow-y:auto;display:flex;flex-direction:column}.page-header{padding:16px 24px;border-bottom:1px solid var(--main-border);display:flex;align-items:center;justify-content:space-between;background:var(--main-bg);flex-shrink:0;gap:12px;flex-wrap:wrap}.page-header h1{font-size:18px;font-weight:600;color:var(--main-text);letter-spacing:-.3px}.page-header-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.desktop-actions{display:flex}.mobile-actions{display:none}.mobile-secondary-actions{display:none;padding:8px 16px;gap:8px;border-bottom:1px solid var(--main-border);background:var(--main-surface)}.page-body{padding:20px 24px;flex:1}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;min-height:44px;font-size:13px;font-weight:500;border-radius:var(--radius);border:1px solid transparent;cursor:pointer;transition:all var(--transition);white-space:nowrap;font-family:var(--font);line-height:1.4}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:not(:disabled):hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-secondary{background:var(--main-bg);color:var(--main-text);border-color:var(--main-border)}.btn-secondary:not(:disabled):hover{background:var(--main-surface);border-color:#b0b7be}.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}.btn-danger:not(:disabled):hover{background:var(--danger-hover);border-color:var(--danger-hover)}.btn-ghost{background:transparent;color:var(--main-muted);border-color:transparent}.btn-ghost:not(:disabled):hover{background:var(--main-surface);color:var(--main-text)}.btn-sm{padding:5px 12px;min-height:32px;font-size:12px}.btn-icon{padding:8px;min-height:44px;min-width:44px;border-radius:var(--radius)}.form-group{display:flex;flex-direction:column;gap:5px;margin-bottom:16px}.form-group:last-child{margin-bottom:0}.form-label{font-size:12px;font-weight:500;color:var(--main-muted);text-transform:uppercase;letter-spacing:.4px}.form-input,.form-select,.form-textarea{padding:10px 12px;min-height:44px;font-size:14px;font-family:var(--font);border:1px solid var(--main-border);border-radius:var(--radius);background:var(--main-bg);color:var(--main-text);transition:border-color var(--transition),box-shadow var(--transition);width:100%;outline:none}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px #0969da1f}.form-textarea{resize:vertical;min-height:80px;font-family:var(--font-mono);font-size:13px;line-height:1.6}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.card{background:var(--main-bg);border:1px solid var(--main-border);border-radius:var(--radius-lg);overflow:hidden}.card-header{padding:14px 18px;border-bottom:1px solid var(--main-border);display:flex;align-items:center;justify-content:space-between;background:var(--main-surface)}.card-header h3{font-size:13px;font-weight:600;color:var(--main-text)}.card-body{padding:18px}.alert{padding:10px 14px;border-radius:var(--radius);font-size:13px;line-height:1.5;display:flex;align-items:flex-start;gap:8px}.alert-error{background:var(--danger-light);color:var(--danger);border:1px solid #ffc1c0}.alert-success{background:var(--success-light);color:var(--success);border:1px solid #a3e8b0}.alert-warning{background:var(--warning-light);color:var(--warning);border:1px solid #f2cc60}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--sidebar-bg);padding:16px}.login-card{width:100%;max-width:400px;background:var(--main-bg);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden}.login-header{padding:28px 28px 20px;border-bottom:1px solid var(--main-border);text-align:center}.login-logo{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:6px;color:var(--main-text);font-size:20px;font-weight:700}.login-logo svg{color:var(--accent)}.login-header p{font-size:13px;color:var(--main-muted);margin-top:4px}.login-body{padding:24px 28px}.login-body .form-group{margin-bottom:14px}.login-body .alert{margin-bottom:16px}.login-body .btn{width:100%;justify-content:center;margin-top:6px}.login-hint{margin-top:16px;font-size:12px;color:var(--main-muted);text-align:center}.connection-list{display:flex;flex-direction:column;gap:10px}.connection-card{background:var(--main-bg);border:1px solid var(--main-border);border-radius:var(--radius-lg);padding:14px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;transition:box-shadow var(--transition),border-color var(--transition);flex-wrap:wrap}.connection-card:hover{box-shadow:var(--shadow-sm);border-color:#b0b7be}.connection-info{display:flex;align-items:center;gap:14px;min-width:0;flex:1}.connection-icon{width:40px;height:40px;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;letter-spacing:.5px;flex-shrink:0}.connection-icon.mysql{background:#e8f4fd;color:#0277bd}.connection-icon.postgresql{background:#e8f0fe;color:#1a73e8}.connection-icon.mssql{background:#fce8e6;color:#c53929}.connection-details{min-width:0}.connection-details h3{font-size:14px;font-weight:600;color:var(--main-text);margin-bottom:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.connection-details span{font-size:12px;color:var(--main-muted);font-family:var(--font-mono);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:block}.connection-actions{display:flex;gap:6px;align-items:center;flex-wrap:wrap;flex-shrink:0}.delete-confirm-label{font-size:12px;color:var(--main-muted)}.empty-state{text-align:center;padding:48px 24px;color:var(--main-muted)}.empty-state svg{margin-bottom:12px;opacity:.4}.empty-state h3{font-size:15px;font-weight:600;margin-bottom:6px;color:var(--main-text)}.empty-state p{font-size:13px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:flex;align-items:center;justify-content:center;z-index:1000;padding:16px}.modal{background:var(--main-bg);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);width:100%;max-width:520px;max-height:90vh;overflow-y:auto}.modal-header{padding:18px 22px;border-bottom:1px solid var(--main-border);display:flex;align-items:center;justify-content:space-between}.modal-header h2{font-size:16px;font-weight:600;color:var(--main-text)}.modal-body{padding:22px}.modal-footer{padding:16px 22px;border-top:1px solid var(--main-border);display:flex;justify-content:flex-end;gap:8px}.editor-layout{display:flex;flex-direction:column;height:100%;overflow:hidden}.editor-toolbar{padding:10px 16px;border-bottom:1px solid var(--main-border);background:var(--main-surface);flex-shrink:0}.editor-toolbar-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.editor-conn-select{min-width:180px;width:auto;flex:1;max-width:320px}.editor-run-btn{flex-shrink:0}.editor-shortcut-hint{font-size:12px;color:var(--main-muted);white-space:nowrap}.editor-history-btn{margin-left:auto;flex-shrink:0}.editor-no-conn{font-size:13px;color:var(--main-muted)}.editor-body{display:flex;flex:1;overflow:hidden;position:relative}.editor-main{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0}.editor-pane{flex-shrink:0}.sql-textarea{width:100%;padding:14px 16px;font-family:var(--font-mono);font-size:13px;line-height:1.7;border:none;border-bottom:1px solid var(--main-border);background:#1e2230;color:#abb2bf;resize:vertical;outline:none;display:block;min-height:120px}.sql-textarea::placeholder{color:#4b5263}.result-pane{flex:1;overflow:auto;display:flex;flex-direction:column}.result-error-wrap{padding:12px 16px}.result-header{padding:8px 12px;border-bottom:1px solid var(--main-border);display:flex;align-items:center;gap:8px;background:var(--main-surface);flex-shrink:0;flex-wrap:wrap}.result-header span{font-size:12px;color:var(--main-muted);font-family:var(--font-mono)}.result-action-group{display:inline-flex;align-items:stretch;border:1px solid var(--main-border);border-radius:var(--radius);overflow:hidden;transition:border-color var(--transition)}.result-action-group:hover,.result-action-group:focus-within{border-color:#b0b7be}.result-format-select{height:30px;padding:0 6px 0 8px;font-size:11.5px;font-family:var(--font);background:var(--main-surface);color:var(--main-muted);border:none;border-right:1px solid var(--main-border);cursor:pointer;outline:none;-webkit-appearance:auto;-moz-appearance:auto;appearance:auto;min-width:54px;transition:background var(--transition),color var(--transition)}.result-format-select:hover,.result-format-select:focus{background:var(--main-bg);color:var(--main-text)}.result-action-group .result-action-btn{display:inline-flex;align-items:center;gap:5px;height:30px;padding:0 10px;font-size:11.5px;font-family:var(--font);font-weight:500;background:var(--main-surface);color:var(--main-muted);border:none;cursor:pointer;white-space:nowrap;transition:background var(--transition),color var(--transition)}.result-action-group .result-action-btn:hover{background:var(--main-bg);color:var(--main-text)}.result-action-group .result-action-btn:active{background:#e6eaf0}.result-action-btn svg{flex-shrink:0;opacity:.7}.result-action-btn:hover svg{opacity:1}.result-action-btn.copied{color:#1a7f37;background:#dafbe1}@media (prefers-color-scheme: dark){.result-action-btn.copied{color:#3fb950;background:#0f2d1a}}.result-empty{flex:1;display:flex;align-items:center;justify-content:center;color:var(--main-muted);font-size:13px;padding:32px 16px}.result-table-wrap{overflow:auto;flex:1}.result-table{width:100%;border-collapse:collapse;font-size:12.5px;font-family:var(--font-mono)}.result-table thead tr{background:var(--main-surface);border-bottom:2px solid var(--main-border);position:sticky;top:0;z-index:1}.result-table th{padding:8px 12px;text-align:left;font-weight:600;font-size:11px;color:var(--main-muted);text-transform:uppercase;letter-spacing:.4px;white-space:nowrap;border-right:1px solid var(--main-border)}.result-table th:last-child{border-right:none}.result-table tbody tr{border-bottom:1px solid var(--main-border);transition:background var(--transition)}.result-table tbody tr:hover{background:var(--main-surface)}.result-table td{padding:7px 12px;color:var(--main-text);border-right:1px solid var(--main-border);max-width:300px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.result-table td:last-child{border-right:none}.result-table td.null-value{color:var(--main-muted);font-style:italic}.history-overlay-backdrop{display:none}.history-sidebar{width:260px;border-left:1px solid var(--main-border);display:flex;flex-direction:column;background:var(--main-bg);flex-shrink:0;overflow:hidden}.history-header{padding:10px 14px;border-bottom:1px solid var(--main-border);display:flex;align-items:center;justify-content:space-between;background:var(--main-surface)}.history-header h3{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--main-muted)}.history-list{overflow-y:auto;flex:1}.history-item{padding:10px 14px;border-bottom:1px solid var(--main-border);cursor:pointer;transition:background var(--transition)}.history-item:hover{background:var(--main-surface)}.history-item-sql{font-family:var(--font-mono);font-size:11.5px;color:var(--main-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-bottom:3px}.history-item-meta{font-size:11px;color:var(--main-muted);display:flex;justify-content:space-between}.history-empty{padding:24px 14px;text-align:center;font-size:12px;color:var(--main-muted)}.toolbar-group{display:flex;align-items:center;gap:6px;margin-left:auto}.badge{display:inline-flex;align-items:center;padding:2px 7px;border-radius:20px;font-size:11px;font-weight:500}.badge-blue{background:var(--accent-light);color:var(--accent)}.badge-green{background:var(--success-light);color:var(--success)}.badge-red{background:var(--danger-light);color:var(--danger)}.divider{height:1px;background:var(--main-border);margin:16px 0}.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;display:inline-block;flex-shrink:0}.spinner-dark{border-color:#00000026;border-top-color:var(--main-text)}@keyframes spin{to{transform:rotate(360deg)}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#d0d7de;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#b0b7be}@media (max-width: 767px){.sidebar{display:none}.mobile-header,.bottom-tab-bar{display:flex}.app-layout{flex-direction:column}.app-content{padding-bottom:var(--bottom-tab-height);overflow-y:auto}.page-header{padding:12px 16px}.page-header h1{font-size:16px}.desktop-actions{display:none}.mobile-actions{display:flex}.mobile-secondary-actions{display:flex;flex-wrap:wrap}.page-body{padding:16px}.connection-card{flex-direction:column;align-items:flex-start}.connection-info{width:100%}.connection-actions{width:100%;justify-content:flex-start;padding-top:8px;border-top:1px solid var(--main-border)}.editor-toolbar-row{gap:8px}.editor-conn-select{flex:1 1 100%;max-width:100%;min-width:0;order:1}.editor-run-btn{flex:1;order:2}.editor-history-btn{margin-left:0;order:3}.editor-shortcut-hint{display:none}.sql-textarea{min-height:140px;resize:vertical}.history-overlay-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:200}.history-sidebar{position:fixed;right:0;top:52px;bottom:var(--bottom-tab-height);width:min(300px,85vw);z-index:201;border-left:1px solid var(--main-border);box-shadow:-4px 0 16px #00000026}.modal-overlay{padding:0;align-items:flex-end}.modal{max-width:100%;max-height:95vh;border-radius:var(--radius-lg) var(--radius-lg) 0 0}.login-card{max-width:100%;border-radius:var(--radius-lg)}.login-header{padding:24px 20px 16px}.login-body{padding:20px}.form-row{grid-template-columns:1fr}}@media (min-width: 768px) and (max-width: 1023px){:root{--sidebar-width: 200px}.page-header{padding:14px 20px}.page-body{padding:16px 20px}}