/* ==========================================================================
   DataIntell Studio — design tokens
   ========================================================================== */
:root{
  /* brand (sampled from logo) */
  --navy-950:#081226;
  --navy-900:#0B1F4D;
  --navy-800:#122a63;
  --blue-600:#2F6FEA;
  --blue-500:#3D82F5;
  --teal-500:#1FB6C9;
  --teal-400:#2FD1C5;

  /* surface / neutrals */
  --bg-app:#F3F6FC;
  --surface:#FFFFFF;
  --surface-2:#F8FAFD;
  --border:#E4E9F2;
  --border-strong:#D3DBEA;

  /* text */
  --text-900:#101828;
  --text-600:#4A5568;
  --text-400:#94A0B8;
  --text-onbrand:#EAF0FF;
  --text-onbrand-dim:#9FB3E0;

  /* state */
  --success:#12B76A;
  --success-bg:#E6F9F0;
  --warning:#F79009;
  --warning-bg:#FEF3E3;
  --danger:#F04438;
  --danger-bg:#FDEBEA;
  --info:#2F6FEA;

  /* gradients (signature flow motif) */
  --flow-grad: linear-gradient(180deg, var(--blue-500) 0%, var(--teal-400) 100%);
  --flow-grad-h: linear-gradient(90deg, var(--blue-600) 0%, var(--teal-400) 100%);

  /* geometry */
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:18px;
  --sidebar-w:264px;
  --sidebar-w-collapsed:76px;
  --topbar-h:68px;

  --shadow-sm: 0 1px 2px rgba(11,31,77,.06);
  --shadow-md: 0 6px 20px -4px rgba(11,31,77,.12);
  --shadow-lg: 0 16px 40px -8px rgba(11,31,77,.18);

  --font-display:'Sora', 'Segoe UI', sans-serif;
  --font-body:'Inter', 'Segoe UI', sans-serif;
  --font-mono:'IBM Plex Mono', 'Consolas', monospace;
}

*,*::before,*::after{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--font-body);
  background:var(--bg-app);
  color:var(--text-900);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
ul{list-style:none;margin:0;padding:0}
button{font-family:inherit}
svg{width:1em;height:1em}

/* ==========================================================================
   App shell
   ========================================================================== */
.app-shell{
  display:grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height:100vh;
  transition:grid-template-columns .22s ease;
}
.app-shell.is-collapsed{
  grid-template-columns: var(--sidebar-w-collapsed) 1fr;
}

/* ==========================================================================
   Sidebar
   ========================================================================== */
.sidebar{
  background:linear-gradient(180deg, var(--navy-950) 0%, var(--navy-900) 100%);
  color:var(--text-onbrand);
  position:sticky;
  top:0;
  height:100vh;
  overflow-y:auto;
  overflow-x:hidden;
  display:flex;
  flex-direction:column;
  z-index:20;
}
.sidebar::-webkit-scrollbar{width:6px}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:3px}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding:22px 20px 18px;
  white-space:nowrap;
}
.brand img{width:34px;height:34px;flex:none;object-fit:contain}
.brand-text{display:flex;flex-direction:column;line-height:1.1;overflow:hidden}
.brand-text b{font-family:var(--font-display);font-size:16.5px;letter-spacing:.2px}
.brand-text span{font-size:11px;color:var(--text-onbrand-dim);letter-spacing:1.5px;text-transform:uppercase}
.is-collapsed .brand-text{display:none}

.nav-scroll{flex:1;padding:6px 12px 18px;position:relative}

.nav-group{margin-bottom:2px}
.nav-label{
  display:flex;align-items:center;gap:13px;
  padding:10px 12px;margin:1px 0;
  border-radius:var(--radius-sm);
  font-size:13.5px;font-weight:500;
  color:#C9D6F2;
  cursor:pointer;
  position:relative;
  z-index:1;
  transition:background .15s, color .15s;
}
.nav-label:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-icon{
  flex:none;width:30px;height:30px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);
  font-size:15px;color:#AFC1E8;
}
.nav-text{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.is-collapsed .nav-text,
.is-collapsed .nav-chevron,
.is-collapsed .submenu{display:none}

.nav-chevron{font-size:11px;color:var(--text-onbrand-dim);transition:transform .18s}
.nav-group.open > .nav-label .nav-chevron{transform:rotate(180deg)}

.nav-item.active > .nav-label,
.nav-label.is-active{
  background:rgba(63,130,245,.16);
  color:#fff;
}
.nav-item.active > .nav-label .nav-icon,
.nav-label.is-active .nav-icon{
  background:var(--flow-grad-h);
  color:#fff;
}

.submenu{
  max-height:0;
  overflow:hidden;
  transition:max-height .22s ease;
  padding-left:14px;
}
.nav-group.open .submenu{max-height:400px}
.submenu li a{
  display:flex;align-items:center;gap:10px;
  padding:8px 12px 8px 34px;
  margin:1px 0;
  border-radius:var(--radius-sm);
  font-size:13px;color:#AEC0E6;
  position:relative;
}
.submenu li a::before{
  content:"";position:absolute;left:16px;top:50%;
  width:5px;height:5px;border-radius:50%;
  background:#5B7FD6;transform:translateY(-50%);
}
.submenu li a:hover{background:rgba(255,255,255,.06);color:#fff}
.submenu li a.is-active{color:#fff;font-weight:600;background:rgba(47,209,197,.12)}
.submenu li a.is-active::before{background:var(--teal-400)}

.sidebar-foot{
  padding:14px 20px 20px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:11.5px;color:var(--text-onbrand-dim);
  white-space:nowrap;overflow:hidden;
}
.is-collapsed .sidebar-foot{opacity:0}

/* ==========================================================================
   Topbar
   ========================================================================== */
.topbar{
  height:var(--topbar-h);
  background:var(--surface);
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:16px;
  padding:0 26px;
  position:sticky;top:0;z-index:10;
}
.icon-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--border);
  background:var(--surface);color:var(--text-600);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;font-size:16px;transition:background .15s,border-color .15s;
}
.icon-btn:hover{background:var(--surface-2);border-color:var(--border-strong)}

.page-heading{display:flex;flex-direction:column;line-height:1.15}
.page-heading .crumb{font-size:11.5px;color:var(--text-400);text-transform:uppercase;letter-spacing:1px}
.page-heading h1{font-family:var(--font-display);font-size:19px;margin:2px 0 0}

.search-box{
  flex:1;max-width:380px;margin-left:12px;
  display:flex;align-items:center;gap:9px;
  background:var(--surface-2);border:1px solid var(--border);
  border-radius:10px;padding:0 14px;height:40px;
  color:var(--text-400);font-size:13.5px;
}
.search-box input{border:0;background:transparent;outline:0;font-size:13.5px;width:100%;color:var(--text-900)}

.topbar-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.badge-dot{position:relative}
.badge-dot::after{
  content:"";position:absolute;top:6px;right:7px;
  width:7px;height:7px;border-radius:50%;
  background:var(--danger);border:1.5px solid var(--surface);
}
.user-chip{
  display:flex;align-items:center;gap:10px;
  padding:6px 12px 6px 6px;border-radius:99px;
  border:1px solid var(--border);cursor:pointer;
}
.user-chip .avatar{
  width:30px;height:30px;border-radius:50%;
  background:var(--flow-grad-h);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:12.5px;font-weight:700;font-family:var(--font-display);
}
.user-chip .who{line-height:1.1}
.user-chip .who b{display:block;font-size:12.5px}
.user-chip .who span{font-size:11px;color:var(--text-400)}

/* ==========================================================================
   Main content
   ========================================================================== */
.main{min-width:0}
.content{padding:26px}

.page-intro{margin-bottom:20px}
.page-intro h2{font-family:var(--font-display);font-size:22px;margin:0 0 4px}
.page-intro p{margin:0;color:var(--text-600);font-size:13.5px}

/* KPI cards */
.kpi-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px;
}
.card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-md);box-shadow:var(--shadow-sm);
}
.kpi-card{padding:18px 20px;position:relative;overflow:hidden}
.kpi-card .kpi-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.kpi-card .kpi-label{font-size:12.5px;color:var(--text-600);font-weight:500}
.kpi-card .kpi-icon{
  width:32px;height:32px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  background:var(--surface-2);color:var(--blue-600);font-size:15px;
}
.kpi-card .kpi-value{font-family:var(--font-mono);font-size:27px;font-weight:600;letter-spacing:-.5px}
.kpi-card .kpi-delta{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:600;margin-top:6px}
.kpi-delta.up{color:var(--success)}
.kpi-delta.down{color:var(--danger)}
.kpi-card .kpi-flow{position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--flow-grad-h);opacity:.7}

/* layout grid for dashboard body */
.dash-grid{display:grid;grid-template-columns:1.7fr 1fr;gap:16px;margin-bottom:16px}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}
.panel-head h3{font-family:var(--font-display);font-size:15px;margin:0}
.panel-head .muted-link{font-size:12.5px;color:var(--blue-600);font-weight:600;cursor:pointer}
.panel-body{padding:18px 20px}

/* fake chart placeholder (bars echoing the logo) */
.bars-chart{display:flex;align-items:flex-end;gap:10px;height:190px;padding-top:10px}
.bars-chart .bar{flex:1;border-radius:6px 6px 2px 2px;background:linear-gradient(180deg, var(--blue-500), var(--navy-900));position:relative}
.bars-chart .bar.alt{background:linear-gradient(180deg, var(--teal-400), var(--teal-500))}
.bars-chart .bar span{position:absolute;bottom:-22px;left:0;right:0;text-align:center;font-size:11px;color:var(--text-400)}

/* run list */
.run-list{display:flex;flex-direction:column;gap:2px}
.run-item{display:flex;align-items:center;gap:12px;padding:11px 4px;border-bottom:1px dashed var(--border)}
.run-item:last-child{border-bottom:0}
.run-dot{width:9px;height:9px;border-radius:50%;flex:none}
.run-dot.ok{background:var(--success)}
.run-dot.warn{background:var(--warning)}
.run-dot.err{background:var(--danger)}
.run-item .run-name{flex:1;font-size:13px;font-weight:500}
.run-item .run-meta{font-size:11.5px;color:var(--text-400)}

/* tables */
.table-wrap{overflow-x:auto}
table.data-table{width:100%;border-collapse:collapse;font-size:13.5px}
table.data-table th{
  text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.6px;
  color:var(--text-400);font-weight:600;padding:10px 14px;border-bottom:1px solid var(--border);
  background:var(--surface-2);
}
table.data-table td{padding:12px 14px;border-bottom:1px solid var(--border);color:var(--text-900)}
table.data-table tr:last-child td{border-bottom:0}
table.data-table tr:hover td{background:var(--surface-2)}

/* status pills */
.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:99px;font-size:11.5px;font-weight:600}
.pill.success{background:var(--success-bg);color:#0A8A55}
.pill.warning{background:var(--warning-bg);color:#B15C00}
.pill.danger{background:var(--danger-bg);color:#C2261B}
.pill.info{background:#EAF1FF;color:var(--blue-600)}
.pill::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}

/* buttons */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:9px;border:1px solid transparent;
  font-size:13.5px;font-weight:600;cursor:pointer;transition:filter .15s, background .15s;
}
.btn-primary{background:var(--flow-grad-h);color:#fff}
.btn-primary:hover{filter:brightness(1.06)}
.btn-ghost{background:var(--surface);border-color:var(--border);color:var(--text-900)}
.btn-ghost:hover{background:var(--surface-2)}
.btn-sm{padding:6px 12px;font-size:12.5px}

/* generic placeholder page block */
.placeholder-block{
  background:var(--surface);border:1px dashed var(--border-strong);border-radius:var(--radius-md);
  padding:40px 24px;text-align:center;color:var(--text-600);
}
.placeholder-block .ph-icon{
  width:52px;height:52px;border-radius:14px;margin:0 auto 14px;
  background:var(--surface-2);color:var(--blue-600);
  display:flex;align-items:center;justify-content:center;font-size:24px;
}
.placeholder-block h3{font-family:var(--font-display);color:var(--text-900);margin:0 0 6px}
.placeholder-block p{max-width:440px;margin:0 auto;font-size:13.5px}

.breadcrumb-strip{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-400);margin-bottom:10px}
.breadcrumb-strip b{color:var(--text-600)}

/* flash banners */
.flash-banner{
  display:flex;align-items:center;gap:10px;
  padding:12px 16px;border-radius:var(--radius-md);
  font-size:13.5px;font-weight:500;margin-bottom:18px;
}
.flash-banner svg{flex:none;width:18px;height:18px}
.flash-success{background:var(--success-bg);color:#0A8A55}
.flash-danger{background:var(--danger-bg);color:#C2261B}

/* category filter chips (Connections index) */
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:99px;border:1px solid var(--border);
  background:var(--surface);color:var(--text-600);font-size:12.5px;font-weight:600;
  cursor:pointer;transition:all .15s;white-space:nowrap;
}
.chip:hover{background:var(--surface-2)}
.chip.is-active{background:var(--flow-grad-h);border-color:transparent;color:#fff}
.chip .chip-count{opacity:.75;font-weight:500}

/* connection type picker grid (New Connection form, step 1) */
.type-picker{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin-bottom:22px}
.type-card{
  display:flex;flex-direction:column;gap:4px;
  padding:14px 16px;border:1.5px solid var(--border);border-radius:var(--radius-md);
  cursor:pointer;transition:all .15s;background:var(--surface);
}
.type-card:hover{border-color:var(--border-strong);background:var(--surface-2)}
.type-card.is-selected{border-color:var(--blue-600);background:#EAF1FF}
.type-card .type-card-icon{
  width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  background:var(--surface-2);color:var(--blue-600);font-size:16px;margin-bottom:4px;
}
.type-card.is-selected .type-card-icon{background:var(--flow-grad-h);color:#fff}
.type-card .type-card-label{font-size:13.5px;font-weight:600;color:var(--text-900)}
.type-card .type-card-category{font-size:11.5px;color:var(--text-400)}

.category-section{margin-bottom:22px}
.category-section h4{
  font-family:var(--font-display);font-size:14px;margin:0 0 10px;
  display:flex;align-items:center;gap:8px;color:var(--text-900);
}

/* form layout */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
fieldset.form-grid{border:0;margin:0;padding:0;min-width:0}
.form-group{margin-bottom:16px}
.form-group.full{grid-column:1 / -1}
.form-group label{display:block;font-size:12.5px;font-weight:600;color:var(--text-600);margin-bottom:6px}
.form-group .hint{font-size:11.5px;color:var(--text-400);margin-top:5px}
.form-group .field-error{font-size:11.5px;color:var(--danger);margin-top:5px;font-weight:600}
.form-control{
  width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);
  font-size:13.5px;font-family:var(--font-body);color:var(--text-900);background:var(--surface);
  transition:border-color .15s;
}
.form-control:focus{outline:0;border-color:var(--blue-600)}
.form-control.has-error{border-color:var(--danger)}
textarea.form-control{resize:vertical;min-height:80px}
select.form-control{cursor:pointer}

.form-actions{display:flex;gap:10px;margin-top:8px;padding-top:18px;border-top:1px solid var(--border)}

/* driver manager */
.driver-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.driver-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:16px 18px;
}
.driver-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.driver-card-head b{font-size:13.5px}
.driver-card .driver-category{font-size:11px;color:var(--text-400);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}
.driver-card p{font-size:12.5px;color:var(--text-600);margin:8px 0 0}
.driver-card a{color:var(--blue-600);font-weight:600}

/* status dot inline (used in connection test results) */
.test-result{display:flex;align-items:center;gap:8px;font-size:12.5px;margin-top:10px;padding:10px 12px;border-radius:var(--radius-sm)}
.test-result.success{background:var(--success-bg);color:#0A8A55}
.test-result.warning{background:var(--warning-bg);color:#B15C00}
.test-result.danger{background:var(--danger-bg);color:#C2261B}
.test-result .spinner{
  width:14px;height:14px;border-radius:50%;border:2px solid rgba(0,0,0,.15);border-top-color:currentColor;
  animation:spin .7s linear infinite;flex:none;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* two-pane catalog layout */
.catalog-layout{display:grid;grid-template-columns:260px 1fr;gap:16px;align-items:start}
.catalog-sidebar{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden}
.catalog-sidebar-head{padding:14px 16px 10px;font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--text-400)}
.catalog-sidebar-list{display:flex;flex-direction:column;padding:0 8px 10px}
.catalog-sidebar-item{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:9px 10px;border-radius:var(--radius-sm);font-size:13px;font-weight:500;color:var(--text-900);
  transition:background .15s;
}
.catalog-sidebar-item:hover{background:var(--surface-2)}
.catalog-sidebar-item.is-active{background:#EAF1FF;color:var(--blue-600);font-weight:600}
.catalog-sidebar-item .count-badge{
  font-size:11px;font-weight:700;color:var(--text-400);background:var(--surface-2);
  padding:2px 7px;border-radius:99px;min-width:20px;text-align:center;
}
.catalog-sidebar-item.is-active .count-badge{background:#fff;color:var(--blue-600)}
.catalog-sidebar-divider{margin:6px 14px;border-top:1px solid var(--border)}
.catalog-content{min-width:0}

/* job monitor progress bars */
.job-progress-bar-wrap{width:100%;height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden;margin-bottom:5px}
.job-progress-bar{height:100%;background:var(--flow-grad-h);border-radius:99px;transition:width .3s ease;min-width:2px}
.job-progress-text{font-size:11px;color:var(--text-600);font-family:var(--font-mono)}

/* query source modal */
.pb-modal-overlay{
  position:fixed;inset:0;background:rgba(8,18,38,.55);z-index:100;
  display:flex;align-items:center;justify-content:center;padding:24px;
}
.pb-modal{background:var(--surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:100%;max-width:640px;max-height:88vh;display:flex;flex-direction:column;overflow:hidden}
.pb-modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--navy-900);color:#fff;font-family:var(--font-display);font-size:15px;font-weight:600}
.pb-modal-close{cursor:pointer;font-size:20px;line-height:1;opacity:.8}
.pb-modal-close:hover{opacity:1}
.pb-modal-body{padding:20px;overflow-y:auto}
.pb-query-textarea{
  width:100%;min-height:160px;font-family:var(--font-mono);font-size:12.5px;
  padding:12px;border:1px solid var(--border);border-radius:var(--radius-sm);resize:vertical;
}

/* The node configuration pop-up (opened by double-clicking a node). Sits below
   the query/confirm modals, which can legitimately open on top of it. */
.pb-config-overlay{z-index:90}
#queryModalOverlay{z-index:110}
#confirmModalOverlay{z-index:120}
.pb-config-modal{max-width:860px;max-height:90vh}
.pb-config-modal .pb-modal-head{text-transform:none;letter-spacing:0}

.pb-wrap{display:grid;grid-template-columns:230px 1fr;gap:0;align-items:start;border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm)}

.pb-pane-head{
  display:flex;align-items:center;gap:8px;padding:12px 16px;font-size:12px;font-weight:700;
  text-transform:uppercase;letter-spacing:.6px;color:#fff;flex:none;
}
.pb-pane-head svg{width:14px;height:14px}
.pb-palette-head{background:var(--blue-600)}
.pb-canvas-head{background:var(--teal-500)}
.pb-config-head{background:var(--navy-900)}

.pb-palette{background:var(--surface);border-right:1px solid var(--border);max-height:820px;display:flex;flex-direction:column}
.pb-palette-list{overflow-y:auto;flex:1;padding-bottom:10px}
.pb-palette-section-label{padding:14px 14px 8px;font-size:10.5px;font-weight:700;color:var(--text-400);text-transform:uppercase;letter-spacing:.4px}
.pb-palette-section-label:not(:first-child){margin-top:8px;border-top:1px solid var(--border);padding-top:16px}

.pb-tool-item{background:var(--surface-2)!important}
.pb-tool-item svg{color:var(--teal-500)!important}
.pb-tool-item[data-tool="target"] svg{color:var(--navy-900)!important}
.pb-tool-item[data-tool="join"] svg{color:#8B5CF6!important}

.pb-connector-group{margin:0 10px 4px}
.pb-connector-head{
  display:flex;align-items:center;gap:8px;padding:9px 8px;border-radius:8px;cursor:pointer;
  font-size:12.5px;font-weight:600;color:var(--text-900);transition:background .15s;
}
.pb-connector-head:hover{background:var(--surface-2)}
.pb-connector-head svg{width:13px;height:13px;flex:none;color:var(--blue-600)}
.pb-connector-head .chevron{width:10px;height:10px;color:var(--text-400);transition:transform .15s}
.pb-connector-group.open .pb-connector-head .chevron{transform:rotate(180deg)}
.pb-connector-head span:not(.count-badge){flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pb-connector-head .count-badge{
  font-size:10.5px;font-weight:700;color:var(--text-400);background:var(--surface-2);
  padding:1px 7px;border-radius:99px;
}
.pb-connector-body{overflow:hidden;padding-left:6px}

.pb-palette-item{
  display:flex;align-items:center;gap:9px;margin:0 10px 6px;padding:9px 10px;font-size:12.5px;font-weight:600;
  cursor:grab;color:var(--text-900);background:var(--surface);border:1px solid var(--border);border-radius:8px;
  transition:all .15s;
}
.pb-connector-body .pb-palette-item{margin:6px 4px 0}
.pb-palette-item svg{width:14px;height:14px;color:var(--blue-600);flex:none}
.pb-palette-item:hover{background:#EAF1FF;border-color:var(--blue-600);transform:translateX(2px)}
.pb-palette-item:active{cursor:grabbing}
.pb-palette-item.is-active{background:#EAF1FF;border-color:var(--blue-600);font-weight:700}

.pb-drop-choice{
  position:absolute;z-index:20;background:var(--navy-900);border-radius:var(--radius-sm);
  box-shadow:var(--shadow-lg);padding:6px;display:flex;gap:6px;
}
.pb-drop-choice button{
  border:0;background:rgba(255,255,255,.1);color:#fff;font-size:12px;font-weight:600;
  padding:8px 12px;border-radius:6px;cursor:pointer;white-space:nowrap;
}
.pb-drop-choice button:hover{background:var(--flow-grad-h)}
.pb-drop-choice button.cancel{background:transparent;color:var(--text-onbrand-dim)}

.pb-canvas-wrap{background:var(--surface)}
.pb-toolbar{display:flex;align-items:center;gap:8px;padding:10px 14px;border-bottom:1px solid var(--border);background:var(--surface-2)}
.pb-canvas{
  position:relative;min-height:820px;overflow:auto;
  background-image:radial-gradient(circle, var(--border-strong) 1.5px, transparent 1.5px);
  background-size:20px 20px;background-color:#FBFCFE;
}
.pb-canvas.is-connecting{cursor:crosshair}
.pb-canvas-empty-hint{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  text-align:center;color:var(--text-400);font-size:13px;font-weight:500;pointer-events:none;
  border:2px dashed var(--border-strong);border-radius:var(--radius-lg);padding:36px 48px;
  background:rgba(255,255,255,.6);
}
.pb-canvas-empty-hint svg{width:28px;height:28px;color:var(--border-strong);margin-bottom:10px}
.pb-edges-svg{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;overflow:visible}
.pb-edges-svg path{stroke:var(--blue-600);stroke-width:2;fill:none}
.pb-edges-svg path.pb-temp-edge{stroke:var(--teal-500);stroke-dasharray:4 3}
.pb-edges-svg path.pb-edge-hit{stroke:transparent;stroke-width:14;cursor:pointer;pointer-events:stroke}

.pb-node{
  position:absolute;width:180px;background:var(--surface);border:1.5px solid var(--border-strong);
  border-radius:var(--radius-sm);box-shadow:var(--shadow-md);cursor:grab;user-select:none;z-index:2;
}
.pb-node:active{cursor:grabbing}
.pb-node.is-selected{border-color:var(--blue-600);box-shadow:0 0 0 3px rgba(47,111,234,.18)}
.pb-node-head{
  display:flex;align-items:center;gap:6px;padding:8px 10px;font-size:12.5px;font-weight:700;
  border-bottom:1px solid var(--border);border-radius:var(--radius-sm) var(--radius-sm) 0 0;color:#fff;
}
.pb-node.source .pb-node-head{background:var(--blue-600)}
.pb-node.transform .pb-node-head{background:var(--teal-500)}
.pb-node.join .pb-node-head{background:#8B5CF6}
.pb-node.target .pb-node-head{background:var(--navy-900)}
.pb-node-head svg{width:13px;height:13px;flex:none}
.pb-node-head .label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pb-node-head .del{cursor:pointer;opacity:.8;flex:none}
.pb-node-head .del:hover{opacity:1}
.pb-node-body{padding:8px 10px;font-size:11px;color:var(--text-600)}

.pb-port{
  position:absolute;top:50%;width:14px;height:14px;border-radius:50%;
  background:var(--surface);border:2.5px solid var(--blue-600);transform:translateY(-50%);cursor:crosshair;z-index:3;
  box-shadow:0 0 0 3px var(--surface);
}
.pb-port-in{left:-8px}
.pb-port-out{right:-8px}
.pb-port:hover{background:var(--blue-600);transform:translateY(-50%) scale(1.15)}

.pb-config-body{padding:20px 22px;overflow-y:auto;flex:1}
.pb-config-body h4{font-family:var(--font-display);font-size:15px;margin:0 0 14px}
.pb-config-section{margin-bottom:18px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.pb-config-section:last-child{border-bottom:0}
.pb-mapping-row{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.pb-mapping-row input, .pb-mapping-row select{font-size:12.5px;padding:7px 9px}
.pb-mapping-row .remove-row{cursor:pointer;color:var(--danger);flex:none;font-size:16px;line-height:1}

/* Join / transform preview output — a real scrollable result grid rather than a cramped strip. */
.pb-preview{margin-top:10px;border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}
.pb-preview-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:9px 12px;background:var(--surface-2);border-bottom:1px solid var(--border);font-size:11.5px;color:var(--text-600);
}
.pb-preview-head strong{font-size:12.5px;color:var(--text-900)}
.pb-preview-stats{display:flex;gap:6px;flex-wrap:wrap}
.pb-preview-stat{
  display:inline-flex;align-items:center;gap:5px;padding:3px 9px;border-radius:99px;
  background:var(--surface);border:1px solid var(--border);font-size:11px;font-weight:600;white-space:nowrap;
}
.pb-preview-stat b{font-family:var(--font-mono);font-weight:700;color:var(--blue-600)}
.pb-preview-scroll{overflow:auto;max-height:340px}
.pb-preview-scroll table{width:100%;border-collapse:collapse;font-size:11.5px}
.pb-preview-scroll th{
  position:sticky;top:0;z-index:1;background:var(--navy-900);color:#fff;text-align:left;
  padding:8px 10px;font-size:11px;font-weight:700;white-space:nowrap;
}
.pb-preview-scroll td{padding:7px 10px;border-bottom:1px solid var(--border);white-space:nowrap;font-family:var(--font-mono);font-size:11px}
.pb-preview-scroll tr:nth-child(even) td{background:var(--surface-2)}
.pb-preview-scroll td.is-null{color:var(--text-400);font-style:italic}
.pb-chip-list{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.pb-chip{
  display:inline-flex;align-items:center;gap:4px;padding:4px 9px;border-radius:99px;
  background:var(--surface-2);border:1px solid var(--border);font-size:11px;font-weight:600;
  cursor:grab;
}

@media (max-width:1180px){
  .pb-wrap{grid-template-columns:1fr;}
  .pb-palette{max-height:280px;border-right:0;border-bottom:1px solid var(--border)}
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width:1180px){
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .dash-grid{grid-template-columns:1fr}
}
@media (max-width:900px){
  .app-shell{grid-template-columns:1fr}
  .sidebar{
    position:fixed;left:0;top:0;width:var(--sidebar-w);
    transform:translateX(-100%);transition:transform .22s ease;box-shadow:var(--shadow-lg);
  }
  .app-shell.is-mobile-open .sidebar{transform:translateX(0)}
  .search-box{display:none}
  .kpi-grid{grid-template-columns:1fr 1fr}
  .catalog-layout{grid-template-columns:1fr}
}
@media (max-width:560px){
  .kpi-grid{grid-template-columns:1fr}
  .content{padding:16px}
  .topbar{padding:0 14px}
  .form-grid{grid-template-columns:1fr}
  .type-picker{grid-template-columns:1fr}
}