*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg-primary:#0a0e17;
  --bg-secondary:#111827;
  --bg-tertiary:#1a2236;
  --bg-card:rgba(17,24,39,.85);
  --border:#1e2d4a;
  --border-active:#3b82f6;
  --text-primary:#e2e8f0;
  --text-secondary:#94a3b8;
  --text-muted:#64748b;
  --accent-cyan:#06b6d4;
  --accent-blue:#3b82f6;
  --accent-purple:#8b5cf6;
  --accent-green:#10b981;
  --accent-amber:#f59e0b;
  --accent-red:#ef4444;
  --accent-pink:#ec4899;
  --neon-cyan:0 0 10px rgba(6,182,212,.3),0 0 30px rgba(6,182,212,.1);
  --neon-blue:0 0 10px rgba(59,130,246,.3),0 0 30px rgba(59,130,246,.1);
  --neon-green:0 0 10px rgba(16,185,129,.3),0 0 30px rgba(16,185,129,.1);
  --font-mono:'Cascadia Code','Fira Code','JetBrains Mono','SF Mono',Consolas,monospace;
  --font-sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --radius:8px;
  --radius-sm:4px;
}
html{font-size:15px}
body{
  font-family:var(--font-sans);
  background:var(--bg-primary);
  color:var(--text-primary);
  min-height:100vh;
  overflow-x:hidden;
  position:relative;
}

/* Background effects */
.grid-bg{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(6,182,212,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(6,182,212,.03) 1px,transparent 1px);
  background-size:40px 40px;
}
.scanline{
  position:fixed;inset:0;z-index:9999;pointer-events:none;
  background:repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,0,0,.03) 2px,rgba(0,0,0,.03) 4px);
}

/* Scrollbar */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:var(--bg-secondary)}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--accent-cyan)}

/* Header */
header{
  position:relative;z-index:10;
  display:flex;align-items:center;gap:20px;
  padding:12px 24px;
  background:rgba(10,14,23,.95);
  border-bottom:1px solid var(--border);
  backdrop-filter:blur(20px);
}
.logo{display:flex;align-items:center;gap:12px}
.logo-icon{font-size:1.5rem;color:var(--accent-cyan)}
.logo h1{font-size:1.4rem;font-weight:700;letter-spacing:2px}
.logo .accent{color:var(--accent-cyan);text-shadow:var(--neon-cyan)}
.logo .version{
  font-size:.75rem;padding:2px 6px;
  background:var(--bg-tertiary);border:1px solid var(--border);
  border-radius:var(--radius-sm);color:var(--text-muted);
}
.header-controls{display:flex;align-items:center;gap:16px;margin-left:auto}
.db-selector{display:flex;align-items:center;gap:8px}
.db-selector label{font-size:.8rem;letter-spacing:1px;color:var(--text-muted)}
.db-selector select{
  background:var(--bg-tertiary);color:var(--text-primary);
  border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:6px 12px;font-family:var(--font-mono);font-size:.9rem;
  cursor:pointer;outline:none;transition:border-color .2s;
}
.db-selector select:focus{border-color:var(--accent-cyan)}
.db-status{display:flex;align-items:center;gap:6px;font-size:.85rem;color:var(--text-secondary)}
.status-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent-green);
  box-shadow:0 0 6px var(--accent-green);
  animation:pulse 2s infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* Buttons */
.btn{
  background:var(--bg-tertiary);color:var(--text-primary);
  border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:6px 14px;font-size:.85rem;font-family:var(--font-mono);
  cursor:pointer;transition:all .2s;letter-spacing:.5px;
  white-space:nowrap;
}
.btn:hover{border-color:var(--accent-cyan);color:var(--accent-cyan)}
.btn:active{transform:scale(.97)}
.btn-sm{padding:4px 10px;font-size:.8rem}
.btn-primary{background:rgba(59,130,246,.15);border-color:var(--accent-blue);color:var(--accent-blue)}
.btn-primary:hover{background:rgba(59,130,246,.25);box-shadow:var(--neon-blue)}
.btn-accent{background:rgba(139,92,246,.15);border-color:var(--accent-purple);color:var(--accent-purple)}
.btn-accent:hover{background:rgba(139,92,246,.25)}
.btn-danger{background:rgba(239,68,68,.1);border-color:var(--accent-red);color:var(--accent-red)}
.btn-danger:hover{background:rgba(239,68,68,.2)}
.btn-success{background:rgba(16,185,129,.1);border-color:var(--accent-green);color:var(--accent-green)}
.btn-lang{
  padding:5px 12px;font-family:var(--font-mono);font-size:.85rem;letter-spacing:1px;
  background:var(--bg-tertiary);color:var(--accent-cyan);
  border:1px solid var(--border);border-radius:var(--radius-sm);
  cursor:pointer;transition:all .2s;
}
.btn-lang:hover{border-color:var(--accent-cyan);box-shadow:var(--neon-cyan)}

/* Main layout */
main{
  position:relative;z-index:1;
  display:flex;flex-direction:column;
  height:calc(100vh - 53px);padding:12px;gap:12px;
}

/* Datasets panel */
.panel-datasets{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);backdrop-filter:blur(10px);
  overflow:hidden;
  transition:border-color .3s;
}
.panel-datasets.collapsed{border-color:transparent}
.panel-datasets.collapsed .dataset-list{max-height:0;padding-top:0;padding-bottom:0;opacity:0}
.panel-datasets:not(.collapsed) .dataset-list{max-height:200px;opacity:1}
.dataset-list{
  overflow:hidden;overflow-y:auto;display:flex;gap:10px;flex-wrap:wrap;
  max-height:0;padding:0;
  transition:max-height .3s ease,padding .3s ease,opacity .2s;
}
.panel-datasets:not(.collapsed) .dataset-list{padding:12px 16px}
.panel-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 16px;
  border-bottom:1px solid var(--border);
  background:rgba(6,182,212,.03);
  cursor:pointer;user-select:none;
}
.panel-header h2{font-size:.85rem;letter-spacing:1px;color:var(--accent-cyan)}
.toggle-icon{transition:transform .3s}
.panel-datasets.collapsed .toggle-icon{transform:rotate(-90deg)}
.panel-datasets.collapsed .panel-header{border-bottom:none}
.dataset-card{
  flex:1;min-width:200px;max-width:300px;
  background:var(--bg-tertiary);border:1px solid var(--border);
  border-radius:var(--radius);padding:12px;cursor:pointer;
  transition:all .3s;position:relative;overflow:hidden;
}
.dataset-card::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(6,182,212,.05),transparent);
  opacity:0;transition:opacity .3s;
}
.dataset-card:hover{
  border-color:var(--accent-cyan);transform:translateY(-2px);
  box-shadow:var(--neon-cyan);
}
.dataset-card:hover::before{opacity:1}
.dataset-card h3{font-size:.95rem;color:var(--text-primary);margin-bottom:4px}
.dataset-card p{font-size:.8rem;color:var(--text-muted);line-height:1.4}
.dataset-card .dataset-badge{
  display:inline-block;font-size:.7rem;padding:2px 6px;
  background:rgba(6,182,212,.1);border:1px solid rgba(6,182,212,.3);
  border-radius:var(--radius-sm);color:var(--accent-cyan);margin-top:6px;
}

/* Workspace */
.workspace{display:flex;gap:12px;flex:1;min-height:0}

/* Schema sidebar */
.schema-sidebar{
  display:flex;flex-direction:column;
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;
  flex:0 0 200px;min-height:0;
  transition:border-color .3s,flex .3s ease;
}
.schema-sidebar.collapsed{flex:0 0 auto;border-color:transparent}
.schema-sidebar.collapsed .sidebar-body{max-height:0;opacity:0;padding:0;overflow:hidden}
.schema-sidebar:not(.collapsed) .sidebar-body{max-height:800px;opacity:1}
.schema-sidebar.collapsed .toggle-icon{transform:rotate(-90deg)}
.schema-sidebar.collapsed .sidebar-panel-header{border-bottom:none}
.sidebar-panel-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 14px;
  background:rgba(6,182,212,.03);border-bottom:1px solid var(--border);
  cursor:pointer;transition:background .15s;
}
.sidebar-panel-header:hover{background:rgba(6,182,212,.06)}
.sidebar-panel-header h2{font-size:.85rem;letter-spacing:1px;color:var(--accent-cyan);white-space:nowrap}
.sidebar-body{
  display:flex;flex-direction:row;
  max-height:800px;opacity:1;
  transition:max-height .3s ease,opacity .2s ease,padding .3s ease;
  overflow:hidden;
}
.table-count{font-size:.75rem;color:var(--text-muted);font-family:var(--font-mono)}
.table-list{
  flex:0 0 280px;overflow-y:auto;padding:6px 0;
  border-right:1px solid var(--border);
}
.table-list .empty-msg{padding:14px 16px}
.table-item{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 14px;cursor:pointer;
  transition:background .15s;border-left:2px solid transparent;
}
.table-item:hover{background:rgba(6,182,212,.05)}
.table-item.active{
  background:rgba(6,182,212,.08);border-left-color:var(--accent-cyan);
}
.table-item-name{
  font-family:var(--font-mono);font-size:.85rem;color:var(--text-primary);
}
.table-item-badge{
  font-size:.65rem;padding:1px 6px;
  background:rgba(6,182,212,.1);border:1px solid rgba(6,182,212,.25);
  border-radius:var(--radius-sm);color:var(--accent-cyan);
  font-family:var(--font-mono);
}
.table-item-icon{color:var(--text-muted);margin-right:8px;font-size:.8rem}
.column-detail{
  flex:1;overflow:hidden;display:flex;flex-direction:column;
}
.column-detail-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 14px;
  background:rgba(139,92,246,.05);
  border-bottom:1px solid var(--border);gap:8px;
}
.column-detail-header > span{
  font-family:var(--font-mono);font-size:.85rem;font-weight:600;color:var(--accent-purple);
}
.detail-tabs{display:flex;gap:2px}
.detail-tab{
  padding:3px 10px;font-size:.7rem;font-family:var(--font-mono);
  background:transparent;border:1px solid var(--border);border-radius:var(--radius-sm);
  color:var(--text-muted);cursor:pointer;transition:all .2s;
}
.detail-tab:hover{color:var(--text-secondary)}
.detail-tab.active{background:rgba(139,92,246,.15);border-color:var(--accent-purple);color:var(--accent-purple)}
.detail-content{display:none;flex:1;overflow:hidden;flex-direction:column}
.detail-content.active{display:flex}
.column-table-wrap{overflow:auto;flex:1}
.data-table-wrap{overflow:auto;flex:1}
.data-table{width:100%;border-collapse:collapse;font-size:.75rem}
.data-table th{
  padding:5px 8px;text-align:left;
  background:var(--bg-tertiary);
  border-bottom:1px solid var(--border);
  font-family:var(--font-mono);font-weight:600;
  color:var(--accent-cyan);letter-spacing:.5px;
  font-size:.65rem;white-space:nowrap;position:sticky;top:0;z-index:1;
}
.data-table td{
  padding:4px 8px;border-bottom:1px solid rgba(255,255,255,.02);
  font-family:var(--font-mono);color:var(--text-secondary);
  white-space:nowrap;max-width:200px;overflow:hidden;text-overflow:ellipsis;
}
.data-table tbody tr:hover{background:rgba(6,182,212,.04)}
.data-table td.d-null{color:var(--text-muted);font-style:italic}
.column-table{width:100%;border-collapse:collapse;font-size:.8rem}
.column-table th{
  padding:6px 10px;text-align:left;
  background:rgba(139,92,246,.06);
  border-bottom:1px solid var(--border);
  font-family:var(--font-mono);font-weight:600;
  color:var(--accent-purple);letter-spacing:.5px;
  font-size:.7rem;white-space:nowrap;
}
.column-table td{
  padding:5px 10px;border-bottom:1px solid rgba(255,255,255,.02);
  font-family:var(--font-mono);color:var(--text-secondary);
  white-space:nowrap;
}
.column-table tbody tr:hover{background:rgba(139,92,246,.04)}
.column-table .pk-yes{color:var(--accent-amber);font-weight:600}
.column-table .nn-yes{color:var(--accent-red)}
.table-row-count{
  padding:6px 14px;font-size:.75rem;color:var(--text-muted);
  border-top:1px solid var(--border);font-family:var(--font-mono);
  background:rgba(0,0,0,.15);
}

/* Editor section */
.editor-section{
  flex:1;display:flex;flex-direction:column;
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;min-width:0;
}

/* Tabs */
.tabs{
  display:flex;border-bottom:1px solid var(--border);
  background:rgba(0,0,0,.2);
}
.tab{
  padding:10px 20px;font-size:.85rem;letter-spacing:1px;
  background:transparent;border:none;color:var(--text-muted);
  cursor:pointer;transition:all .2s;font-family:var(--font-mono);
  border-bottom:2px solid transparent;position:relative;
}
.tab:hover{color:var(--text-secondary);background:rgba(255,255,255,.02)}
.tab.active{
  color:var(--accent-cyan);border-bottom-color:var(--accent-cyan);
  background:rgba(6,182,212,.05);
}

/* Tab content */
.tab-content{display:none;flex:1;flex-direction:column;min-height:0}
.tab-content.active{display:flex}

/* Editor toolbar */
.editor-toolbar{
  display:flex;align-items:center;gap:8px;
  padding:10px 12px;
  border-bottom:1px solid var(--border);
  background:rgba(0,0,0,.2);
}
.editor-toolbar .btn-exec{
  padding:8px 20px;font-size:.9rem;font-weight:600;
  background:rgba(16,185,129,.15);border:1px solid var(--accent-green);
  color:var(--accent-green);letter-spacing:.5px;
}
.editor-toolbar .btn-exec:hover{
  background:rgba(16,185,129,.25);box-shadow:var(--neon-green);
}
.query-history-toggle{margin-left:auto}

/* Editor wrapper */
.editor-wrapper{
  flex:1;display:flex;position:relative;min-height:0;
}
.line-numbers{
  width:40px;padding:12px 4px;
  background:rgba(0,0,0,.3);
  color:var(--text-muted);font-family:var(--font-mono);
  font-size:.9rem;line-height:1.6;text-align:right;
  user-select:none;overflow:hidden;
  border-right:1px solid var(--border);
}
textarea{
  flex:1;resize:none;border:none;outline:none;
  background:var(--bg-secondary);color:var(--text-primary);
  font-family:var(--font-mono);font-size:.9rem;line-height:1.6;
  padding:12px 16px;tab-size:2;
}
textarea::placeholder{color:var(--text-muted)}
textarea::selection{background:rgba(6,182,212,.2)}

/* Query history */
.query-history-panel{
  display:none;border-top:1px solid var(--border);
  max-height:200px;overflow-y:auto;
  background:var(--bg-secondary);
}
.query-history-panel.open{display:block}
.history-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 12px;border-bottom:1px solid var(--border);
  font-size:.85rem;color:var(--text-muted);
}
.history-item{
  padding:8px 12px;font-family:var(--font-mono);font-size:.85rem;
  color:var(--text-secondary);cursor:pointer;
  border-bottom:1px solid rgba(255,255,255,.03);
  transition:background .2s;
}
.history-item:hover{background:rgba(6,182,212,.05);color:var(--accent-cyan)}
.history-item .history-time{color:var(--text-muted);font-size:.75rem;margin-right:8px}

/* Import section */
.import-section{
  display:flex;gap:12px;padding:16px;flex-wrap:wrap;
}
.import-zone{
  flex:1;min-width:250px;
  border:2px dashed var(--border);border-radius:var(--radius);
  padding:32px;text-align:center;cursor:pointer;
  transition:all .3s;position:relative;
}
.import-zone:hover,.import-zone.dragover{
  border-color:var(--accent-cyan);
  background:rgba(6,182,212,.03);
}
.import-zone .import-icon{font-size:2rem;margin-bottom:8px}
.import-zone h3{font-size:.95rem;margin-bottom:4px}
.import-zone p{font-size:.8rem;color:var(--text-muted);margin-bottom:12px}

.import-preview{
  margin:0 16px;border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;
}
.preview-header{
  display:flex;align-items:center;gap:8px;padding:8px 12px;
  background:rgba(0,0,0,.3);border-bottom:1px solid var(--border);
}
.preview-header span{font-size:.85rem;color:var(--text-muted);flex:1}
.import-preview pre{
  padding:12px;font-family:var(--font-mono);font-size:.85rem;
  max-height:200px;overflow:auto;color:var(--text-secondary);
}

.saved-data-section{padding:16px}
.saved-data-section h3{font-size:.9rem;margin-bottom:12px;color:var(--text-secondary)}
.saved-list{
  display:flex;flex-direction:column;gap:6px;
  max-height:150px;overflow-y:auto;margin-bottom:12px;
}
.saved-item{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 12px;background:var(--bg-tertiary);
  border:1px solid var(--border);border-radius:var(--radius-sm);
  font-size:.85rem;
}
.saved-item .saved-name{color:var(--text-primary)}
.saved-item .saved-date{color:var(--text-muted);font-size:.75rem}
.saved-item .saved-actions{display:flex;gap:4px}
.empty-msg{color:var(--text-muted);font-size:.85rem;font-style:italic}
.saved-actions{display:flex;gap:8px}

/* Result section */
.result-section{
  flex:1;display:flex;flex-direction:column;
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;min-width:0;
}
.result-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 16px;
  border-bottom:1px solid var(--border);
  background:rgba(0,0,0,.2);
}
.result-header h2{font-size:.85rem;letter-spacing:1px;color:var(--accent-cyan)}
.result-info{display:flex;gap:12px;font-size:.8rem;font-family:var(--font-mono);color:var(--text-muted)}
.result-body{flex:1;overflow:auto;padding:0}
.result-placeholder{
  display:flex;flex-direction:column;align-items:center;
  justify-content:center;height:100%;color:var(--text-muted);
}
.placeholder-icon{font-size:3rem;margin-bottom:12px;opacity:.3}
.result-footer{
  display:flex;gap:8px;padding:8px 12px;
  border-top:1px solid var(--border);
  background:rgba(0,0,0,.15);
}
.result-footer .btn:disabled{opacity:.3;cursor:not-allowed;pointer-events:none}

/* Result table */
.result-table{width:100%;border-collapse:collapse;font-size:.85rem}
.result-table thead{position:sticky;top:0;z-index:1}
.result-table th{
  padding:8px 12px;text-align:left;
  background:rgba(6,182,212,.08);
  border-bottom:2px solid var(--accent-cyan);
  font-family:var(--font-mono);font-weight:600;
  color:var(--accent-cyan);letter-spacing:.5px;
  white-space:nowrap;
}
.result-table td{
  padding:6px 12px;border-bottom:1px solid rgba(255,255,255,.03);
  font-family:var(--font-mono);color:var(--text-secondary);
  white-space:nowrap;max-width:300px;overflow:hidden;text-overflow:ellipsis;
}
.result-table tbody tr{transition:background .15s}
.result-table tbody tr:hover{background:rgba(6,182,212,.05)}
.result-table tbody tr:nth-child(even){background:rgba(255,255,255,.01)}
.result-table tbody tr:nth-child(even):hover{background:rgba(6,182,212,.05)}
.result-table td.null-val{color:var(--text-muted);font-style:italic}

/* Error display */
.result-error{
  padding:16px;margin:12px;
  background:rgba(239,68,68,.08);border:1px solid rgba(239,68,68,.3);
  border-radius:var(--radius);color:var(--accent-red);
  font-family:var(--font-mono);font-size:.85rem;line-height:1.5;
}
.result-success{
  padding:12px 16px;margin:12px;
  background:rgba(16,185,129,.08);border:1px solid rgba(16,185,129,.3);
  border-radius:var(--radius);color:var(--accent-green);
  font-family:var(--font-mono);font-size:.85rem;
}

/* Toast notifications */
.toast-container{
  position:fixed;bottom:20px;right:20px;z-index:10000;
  display:flex;flex-direction:column;gap:8px;
}
.toast{
  padding:10px 16px;border-radius:var(--radius);
  font-size:.85rem;font-family:var(--font-mono);
  backdrop-filter:blur(20px);
  animation:toastIn .3s ease;min-width:250px;
  border:1px solid;
}
.toast-success{background:rgba(16,185,129,.15);border-color:rgba(16,185,129,.3);color:var(--accent-green)}
.toast-error{background:rgba(239,68,68,.15);border-color:rgba(239,68,68,.3);color:var(--accent-red)}
.toast-info{background:rgba(59,130,246,.15);border-color:rgba(59,130,246,.3);color:var(--accent-blue)}
@keyframes toastIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}

/* Ad containers */
.ad-container{text-align:center;padding:8px 0}
.ad-container:empty{display:none}
.ad-header{max-width:728px;margin:0 auto}
.ad-footer{max-width:728px;margin:0 auto}

/* Responsive */
@media(max-width:900px){
  .workspace{flex-direction:column}
  .result-section{max-height:40vh}
  .schema-sidebar{flex:0 0 auto;max-height:200px}
  header{flex-wrap:wrap;gap:8px}
  .dataset-card{min-width:150px}
  .sidebar-body{flex-direction:column}
  .table-list{flex:0 0 auto;max-height:100px;border-right:none;border-bottom:1px solid var(--border)}
}