/* =========================================================
   Nodeflow — design tokens & base styles
   ========================================================= */

:root {
  /* Type */
  --font-sans: 'Inter', -apple-system, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Accent (tweakable) */
  --accent-h: 250;
  --accent: oklch(0.55 0.18 var(--accent-h));
  --accent-soft: oklch(0.96 0.03 var(--accent-h));
  --accent-text: oklch(0.35 0.15 var(--accent-h));

  /* Type colors (port color mapping) */
  --t-image: oklch(0.62 0.18 30);
  --t-video: oklch(0.58 0.18 280);
  --t-audio: oklch(0.62 0.17 150);
  --t-text:  oklch(0.55 0.03 260);
  --t-3d:    oklch(0.62 0.16 60);
  --t-event: oklch(0.62 0.17 200);
  --t-any:   oklch(0.65 0.02 260);
  --t-row:   oklch(0.6 0.15 320);
  --t-geo:   oklch(0.62 0.16 190);
  --t-number: oklch(0.62 0.14 90);
  --t-json:  oklch(0.58 0.1 260);
  --t-url:   oklch(0.55 0.15 240);
  --t-binary: oklch(0.55 0.04 260);
  --t-trigger: oklch(0.65 0.2 50);

  /* Execution state */
  --st-idle: oklch(0.7 0.01 260);
  --st-queued: oklch(0.7 0.12 90);
  --st-running: oklch(0.62 0.17 230);
  --st-cached: oklch(0.62 0.12 150);
  --st-error: oklch(0.58 0.2 25);
  --st-stale: oklch(0.65 0.08 60);

  /* Density (tweakable) */
  --density: 1;
  --pad-1: calc(4px * var(--density));
  --pad-2: calc(8px * var(--density));
  --pad-3: calc(12px * var(--density));
  --pad-4: calc(16px * var(--density));
  --pad-5: calc(24px * var(--density));
  --radius-1: 4px;
  --radius-2: 6px;
  --radius-3: 10px;

  /* Light theme */
  --bg: oklch(0.99 0.002 260);
  --bg-subtle: oklch(0.975 0.003 260);
  --bg-canvas: oklch(0.985 0.003 260);
  --panel: oklch(1 0 0);
  --panel-hover: oklch(0.97 0.004 260);
  --border: oklch(0.92 0.005 260);
  --border-strong: oklch(0.86 0.006 260);
  --fg: oklch(0.22 0.01 260);
  --fg-muted: oklch(0.48 0.01 260);
  --fg-faint: oklch(0.65 0.008 260);
  --shadow-sm: 0 1px 2px rgba(10, 12, 20, 0.04), 0 1px 1px rgba(10, 12, 20, 0.03);
  --shadow-md: 0 4px 12px rgba(10, 12, 20, 0.06), 0 1px 3px rgba(10, 12, 20, 0.04);
  --shadow-lg: 0 16px 40px rgba(10, 12, 20, 0.1), 0 4px 10px rgba(10, 12, 20, 0.05);
  --grid-dot: oklch(0.92 0.004 260);
}

[data-theme="dark"] {
  --bg: oklch(0.17 0.008 260);
  --bg-subtle: oklch(0.2 0.008 260);
  --bg-canvas: oklch(0.18 0.008 260);
  --panel: oklch(0.22 0.009 260);
  --panel-hover: oklch(0.25 0.01 260);
  --border: oklch(0.29 0.01 260);
  --border-strong: oklch(0.36 0.012 260);
  --fg: oklch(0.95 0.005 260);
  --fg-muted: oklch(0.7 0.008 260);
  --fg-faint: oklch(0.55 0.008 260);
  --accent-soft: oklch(0.28 0.06 var(--accent-h));
  --accent-text: oklch(0.8 0.14 var(--accent-h));
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 14px rgba(0,0,0,0.4);
  --shadow-lg: 0 18px 40px rgba(0,0,0,0.5);
  --grid-dot: oklch(0.26 0.01 260);
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
}
#root { height: 100%; }

button, input, select, textarea {
  font: inherit;
  color: inherit;
}
button {
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}
a { color: inherit; }

/* ============== App shell ============== */
.app {
  display: grid;
  grid-template-rows: 44px 1fr;
  height: 100%;
  background: var(--bg);
}

.topbar {
  display: flex;
  align-items: center;
  gap: var(--pad-3);
  padding: 0 var(--pad-4);
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  position: relative;
  z-index: 20;
  min-width: 0;
  overflow: hidden;
}
.topbar > * { min-width: 0; flex-shrink: 0; }
.topbar .brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  letter-spacing: -0.01em;
  flex-shrink: 0;
  white-space: nowrap;
}
.topbar .brand-mark {
  width: 20px; height: 20px;
  border-radius: 5px;
  background: conic-gradient(from 90deg at 50% 50%, var(--accent), oklch(0.65 0.14 calc(var(--accent-h) + 40)), var(--accent));
  box-shadow: inset 0 0 0 2px var(--panel);
}
.topbar .crumbs {
  display: flex; align-items: center; gap: 6px;
  color: var(--fg-muted);
  font-size: 12.5px;
  flex: 0 1 auto;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
}
.topbar .crumbs > * { flex-shrink: 0; }
.topbar .crumbs .cur {
  color: var(--fg);
  font-weight: 500;
  flex: 0 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}
.topbar .crumbs .sep { color: var(--fg-faint); }
.topbar .spacer { flex: 1 1 auto; min-width: 0; }
.topbar .tb-btn {
  display: inline-flex; align-items: center; gap: 6px;
  height: 28px;
  padding: 0 10px;
  border-radius: var(--radius-2);
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--fg-muted);
  font-size: 12px;
  transition: background .12s, color .12s, border-color .12s;
  flex-shrink: 0;
  white-space: nowrap;
}
/* Hide nav button labels at narrow widths — icons remain visible */
@media (max-width: 1280px) {
  .topbar .tb-btn .tb-label { display: none; }
  .topbar .tb-btn { padding: 0 8px; }
}
@media (max-width: 960px) {
  .topbar .crumbs { display: none; }
}
.topbar .tb-btn:hover { background: var(--panel-hover); color: var(--fg); }
.topbar .tb-btn.active { color: var(--accent-text); border-color: var(--accent); background: var(--accent-soft); }
.topbar .tb-btn kbd {
  font-family: var(--font-mono);
  font-size: 10.5px;
  padding: 1px 5px;
  border-radius: 3px;
  border: 1px solid var(--border);
  background: var(--bg-subtle);
  color: var(--fg-faint);
}

/* ============== Main layout ============== */
.main {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 0;
  position: relative;
}
.main.no-sidebar { grid-template-columns: 1fr; }

.sidebar {
  border-right: 1px solid var(--border);
  background: var(--panel);
  display: flex; flex-direction: column;
  min-height: 0;
  overflow: hidden;
}
.sidebar .side-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  padding: 0 var(--pad-2);
  gap: 2px;
}
.sidebar .side-tab {
  flex: 1;
  padding: 8px 6px;
  font-size: 11.5px;
  color: var(--fg-muted);
  border-bottom: 2px solid transparent;
  text-align: center;
  transition: color .12s;
}
.sidebar .side-tab.active { color: var(--fg); border-bottom-color: var(--accent); }
.sidebar .side-body { flex: 1; overflow: auto; padding: var(--pad-3); }

.nav-item {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px;
  border-radius: var(--radius-2);
  color: var(--fg-muted);
  font-size: 12.5px;
  cursor: pointer;
  transition: background .1s, color .1s;
  width: 100%;
  text-align: left;
}
.nav-item:hover { background: var(--panel-hover); color: var(--fg); }
.nav-item.active {
  background: var(--accent-soft);
  color: var(--accent-text);
  font-weight: 500;
}
.nav-item .icon { width: 14px; height: 14px; flex-shrink: 0; opacity: 0.8; }

.side-section-label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-faint);
  padding: 10px 8px 4px;
}

/* ============== Generic ============== */
.content { overflow: auto; min-height: 0; position: relative; }
.content.no-scroll { overflow: hidden; }

.page {
  padding: var(--pad-5);
  max-width: 1100px;
  margin: 0 auto;
}
.page h1 { font-size: 22px; margin: 0 0 4px; letter-spacing: -0.01em; }
.page .subtitle { color: var(--fg-muted); margin-bottom: 24px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-3);
  padding: var(--pad-4);
}

/* ============== Canvas ============== */
.canvas-wrap {
  position: relative;
  height: 100%;
  overflow: hidden;
  background: var(--bg-canvas);
  background-image: radial-gradient(circle at 1px 1px, var(--grid-dot) 1px, transparent 0);
  background-size: 22px 22px;
}
.canvas-inner {
  position: absolute;
  inset: 0;
  transform-origin: 0 0;
  will-change: transform;
}
.edges-svg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  overflow: visible;
}
.edge-path {
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  filter: drop-shadow(0 1px 0 rgba(0,0,0,0.02));
}
.edge-path.selected { stroke-width: 2.6; }
.edge-flow {
  stroke-dasharray: 6 6;
  animation: flow 0.8s linear infinite;
}
@keyframes flow {
  to { stroke-dashoffset: -12; }
}

/* ============== Node ============== */
.node {
  position: absolute;
  min-width: 200px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-3);
  box-shadow: var(--shadow-sm);
  font-size: 12px;
  user-select: none;
  transition: box-shadow .15s, border-color .15s;
}
.node:hover { box-shadow: var(--shadow-md); }
.node.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft), var(--shadow-md);
}
.node.running {
  border-color: var(--st-running);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--st-running) 20%, transparent);
}
.node.error { border-color: var(--st-error); }

.node-head {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  cursor: grab;
}
.node-head:active { cursor: grabbing; }
.node-head .nh-icon {
  width: 18px; height: 18px;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent-text);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 11px;
  flex-shrink: 0;
}
.node-head .nh-title {
  flex: 1;
  font-weight: 500;
  color: var(--fg);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.node-head .nh-status {
  font-family: var(--font-mono);
  font-size: 9.5px;
  text-transform: uppercase;
  padding: 2px 5px;
  border-radius: 3px;
  letter-spacing: 0.04em;
}
.nh-status.idle    { color: var(--fg-faint); background: var(--bg-subtle); }
.nh-status.queued  { color: oklch(0.35 0.1 90); background: oklch(0.95 0.08 90 / 0.5); }
.nh-status.running { color: var(--st-running); background: color-mix(in oklch, var(--st-running) 12%, transparent); }
.nh-status.cached  { color: oklch(0.35 0.1 150); background: oklch(0.95 0.05 150); }
.nh-status.error   { color: var(--st-error); background: oklch(0.95 0.05 25); }
.nh-status.stale   { color: oklch(0.35 0.1 60); background: oklch(0.94 0.06 60); }
[data-theme="dark"] .nh-status.idle    { background: oklch(0.25 0.01 260); }
[data-theme="dark"] .nh-status.queued  { color: oklch(0.85 0.14 90); background: oklch(0.3 0.08 90 / 0.6); }
[data-theme="dark"] .nh-status.cached  { color: oklch(0.85 0.14 150); background: oklch(0.3 0.06 150 / 0.6); }
[data-theme="dark"] .nh-status.error   { background: oklch(0.3 0.1 25 / 0.6); color: oklch(0.85 0.15 25); }
[data-theme="dark"] .nh-status.stale   { background: oklch(0.3 0.08 60 / 0.6); color: oklch(0.85 0.14 60); }

.node-body {
  padding: 8px 10px 10px;
  display: flex; flex-direction: column; gap: 6px;
}
.node-preview {
  height: 90px;
  border-radius: var(--radius-2);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  overflow: hidden;
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
.placeholder {
  width: 100%; height: 100%;
  background-image:
    repeating-linear-gradient(-45deg,
      var(--border) 0, var(--border) 1px,
      transparent 1px, transparent 8px);
  display: flex; align-items: center; justify-content: center;
  color: var(--fg-faint);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.02em;
  text-align: center;
  padding: 6px;
}
.placeholder span {
  background: var(--panel);
  padding: 3px 8px;
  border-radius: 3px;
  border: 1px solid var(--border);
}

.node-param {
  display: grid;
  grid-template-columns: 70px 1fr;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
}
.node-param label {
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
}
.param-input {
  height: 22px;
  padding: 0 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--bg-subtle);
  font-size: 11.5px;
  min-width: 0;
  width: 100%;
}
.param-input:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--panel);
}
.node-cta {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 26px;
  padding: 0 10px;
  background: var(--fg);
  color: var(--bg);
  border-radius: var(--radius-2);
  font-weight: 500;
  font-size: 11.5px;
  width: 100%;
  transition: opacity .12s, transform .08s;
}
.node-cta:hover { opacity: 0.9; }
.node-cta:active { transform: translateY(1px); }
.node-cta.accent { background: var(--accent); color: white; }

.node-meta {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--fg-faint);
  padding: 0 2px;
}

/* Ports */
.port {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 2px solid var(--panel);
  box-shadow: 0 0 0 1px var(--border-strong);
  cursor: crosshair;
  transition: transform .1s;
  z-index: 2;
}
.port:hover { transform: scale(1.35); }
.port.in  { left: -6px; }
.port.out { right: -6px; }
.port-row {
  position: relative;
  display: flex; align-items: center;
  gap: 6px;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--fg-muted);
}
.port-row.out { justify-content: flex-end; text-align: right; }

/* Node shape variants (tweakable) */
.shape-card .node-preview { height: 130px; }
.shape-compact .node-preview { display: none; }
.shape-compact .node-body { padding: 6px 10px 8px; }
.shape-compact { min-width: 160px; font-size: 11.5px; }

/* ============== Inspector (right panel) ============== */
.inspector {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 300px;
  background: var(--panel);
  border-left: 1px solid var(--border);
  overflow: auto;
  z-index: 5;
  display: flex; flex-direction: column;
}
.inspector-head {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px;
}
.inspector-head .title { flex: 1; font-weight: 600; font-size: 13px; }
.inspector-section {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}
.inspector-section h4 {
  margin: 0 0 8px;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-faint);
  font-weight: 600;
}
.prop-row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 8px;
  align-items: center;
  font-size: 12px;
  padding: 4px 0;
}
.prop-row .key { color: var(--fg-muted); font-family: var(--font-mono); font-size: 10.5px; }
.chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 7px;
  border-radius: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
}
.chip .dot { width: 6px; height: 6px; border-radius: 50%; }

/* ============== Console / status bar ============== */
.status-bar {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 26px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  padding: 0 12px;
  display: flex; align-items: center; gap: 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--fg-muted);
  z-index: 4;
}
.status-bar .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--st-running);
  box-shadow: 0 0 6px var(--st-running);
}

/* Floating + button */
.fab {
  position: absolute;
  bottom: 46px; right: 320px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--fg); color: var(--bg);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  z-index: 4;
  font-size: 22px;
  transition: transform .1s;
}
.fab:hover { transform: scale(1.05); }

/* Minimap */
.minimap {
  position: absolute;
  bottom: 40px; right: 320px;
  width: 180px; height: 120px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-2);
  box-shadow: var(--shadow-md);
  z-index: 3;
  overflow: hidden;
}
.mm-viewport {
  position: absolute;
  border: 1.5px solid var(--accent);
  background: var(--accent-soft);
  opacity: 0.4;
}

/* Breadcrumb */
.canvas-breadcrumb {
  position: absolute;
  top: 10px; left: 12px;
  display: flex; gap: 6px; align-items: center;
  padding: 6px 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-2);
  font-size: 11.5px;
  box-shadow: var(--shadow-sm);
  z-index: 4;
  color: var(--fg-muted);
}
.canvas-breadcrumb .cb-seg { cursor: pointer; }
.canvas-breadcrumb .cb-seg.cur { color: var(--fg); font-weight: 500; }

/* ============== Git drawer ============== */
.git-drawer-backdrop {
  position: absolute; inset: 0;
  background: rgba(10,12,20,0.1);
  z-index: 9;
}
.git-drawer {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 440px;
  background: var(--panel);
  border-left: 1px solid var(--border);
  box-shadow: -12px 0 40px rgba(10,12,20,0.08);
  z-index: 10;
  display: flex; flex-direction: column;
  animation: slideIn .22s cubic-bezier(.3,.7,.3,1);
}
@keyframes slideIn {
  from { transform: translateX(30px); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}
.drawer-head {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}
.drawer-head .title { flex: 1; font-weight: 600; }

/* Commit graph */
.commit-graph { padding: 6px 0; }
.commit-row {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  gap: 8px;
  padding: 8px 16px 8px 10px;
  align-items: flex-start;
  position: relative;
  cursor: pointer;
}
.commit-row:hover { background: var(--panel-hover); }
.commit-row.active { background: var(--accent-soft); }
.commit-graph-col { position: relative; height: 100%; }
.commit-rail {
  position: absolute;
  top: 0; bottom: -16px;
  width: 2px;
}
.commit-dot {
  position: absolute;
  width: 12px; height: 12px;
  border-radius: 50%;
  border: 2px solid var(--panel);
  top: 4px;
  z-index: 1;
}
.commit-msg { font-weight: 500; font-size: 12.5px; }
.commit-meta { color: var(--fg-muted); font-size: 11px; margin-top: 2px; font-family: var(--font-mono); }
.commit-hash {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--fg-faint);
  padding: 1px 4px;
  background: var(--bg-subtle);
  border-radius: 3px;
}

/* Branch chip */
.branch-chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 1px 6px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 10px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  color: var(--fg-muted);
}
.branch-chip .bc-dot { width: 6px; height: 6px; border-radius: 50%; }

/* ============== Cmd+K palette ============== */
.palette-backdrop {
  position: fixed; inset: 0;
  background: rgba(10,12,20,0.35);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex; justify-content: center;
  padding-top: 10vh;
}
[data-theme="dark"] .palette-backdrop { background: rgba(0,0,0,0.5); }
.palette {
  width: 620px;
  max-height: 60vh;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: flex; flex-direction: column;
}
.palette-input-row {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.palette-input {
  flex: 1; border: none; background: none; outline: none;
  font-size: 15px;
}
.palette-list { overflow: auto; padding: 6px; }
.palette-section-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-faint);
  padding: 8px 12px 4px;
  font-family: var(--font-mono);
}
.palette-item {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}
.palette-item.selected { background: var(--accent-soft); color: var(--accent-text); }
.palette-item .picon {
  width: 22px; height: 22px;
  border-radius: 5px;
  background: var(--bg-subtle);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 12px;
  color: var(--fg-muted);
  flex-shrink: 0;
}
.palette-item.selected .picon { background: var(--panel); color: var(--accent-text); }
.palette-item .pname { flex: 1; }
.palette-item .pkbd {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-faint);
}

/* ============== Drag-from-port menu ============== */
.port-menu {
  position: fixed;
  z-index: 50;
  width: 240px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.port-menu-head {
  padding: 8px 10px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--fg-muted);
  border-bottom: 1px solid var(--border);
  background: var(--bg-subtle);
}
.port-menu-list { max-height: 220px; overflow: auto; padding: 4px; }
.port-menu-item {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 12px;
}
.port-menu-item:hover { background: var(--panel-hover); }
.port-menu-item .mini-type-dot { width: 8px; height: 8px; border-radius: 50%; }

/* ============== Agent drawer ============== */
.agent-drawer {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 360px;
  background: var(--panel);
  border-left: 1px solid var(--border);
  box-shadow: -12px 0 40px rgba(10,12,20,0.08);
  z-index: 8;
  display: flex; flex-direction: column;
  animation: slideIn .22s cubic-bezier(.3,.7,.3,1);
}
.agent-body { flex: 1; overflow: auto; padding: 12px; display: flex; flex-direction: column; gap: 10px; }
.agent-msg {
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 12.5px;
  max-width: 90%;
}
.agent-msg.sys { background: var(--bg-subtle); border: 1px solid var(--border); align-self: flex-start; }
.agent-msg.me { background: var(--accent); color: white; align-self: flex-end; }
.agent-suggest {
  border: 1px dashed var(--accent);
  background: var(--accent-soft);
  color: var(--accent-text);
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 12.5px;
}
.agent-suggest .acts { display: flex; gap: 6px; margin-top: 8px; }
.agent-suggest button {
  padding: 4px 10px;
  border-radius: 5px;
  background: var(--panel);
  border: 1px solid var(--border);
  font-size: 11.5px;
  color: var(--fg);
}
.agent-suggest button.primary { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.agent-input {
  padding: 10px;
  border-top: 1px solid var(--border);
  display: flex; gap: 8px;
}
.agent-input input {
  flex: 1; height: 30px;
  padding: 0 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-subtle);
}

/* Sparkle badge */
.sparkle-badge {
  position: absolute;
  top: -8px; right: -8px;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 12px;
  box-shadow: var(--shadow-md);
  animation: pulse 2s infinite;
  cursor: pointer;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in oklch, var(--accent) 50%, transparent); }
  50% { box-shadow: 0 0 0 8px color-mix(in oklch, var(--accent) 0%, transparent); }
}

/* ============== Library ============== */
.library-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.symbol-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-2);
  background: var(--panel);
  padding: 10px;
  cursor: pointer;
  transition: border-color .12s, box-shadow .12s;
}
.symbol-card:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); }
.symbol-card .sc-preview {
  height: 100px;
  border-radius: 4px;
  background: var(--bg-subtle);
  margin-bottom: 8px;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.symbol-card .sc-name { font-family: var(--font-mono); font-size: 11.5px; color: var(--accent-text); }
.symbol-card .sc-type { font-size: 10.5px; color: var(--fg-faint); font-family: var(--font-mono); }

/* ============== Tweaks panel ============== */
.tweaks-panel {
  position: fixed;
  bottom: 20px; right: 20px;
  width: 280px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  z-index: 60;
  font-size: 12px;
}
.tweaks-head {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  display: flex; align-items: center; gap: 8px;
}
.tweaks-body { padding: 10px 14px; display: flex; flex-direction: column; gap: 10px; max-height: 60vh; overflow: auto; }
.tweak-row { display: flex; flex-direction: column; gap: 4px; }
.tweak-row label { font-size: 10.5px; color: var(--fg-muted); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.06em; }
.tweak-row .opts { display: flex; gap: 4px; }
.tweak-row .opts button {
  flex: 1;
  padding: 5px 8px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: var(--bg-subtle);
  font-size: 11px;
  color: var(--fg-muted);
}
.tweak-row .opts button.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
.tweak-row input[type="range"] { width: 100%; }
.tweak-row input[type="color"] { width: 40px; height: 24px; border: none; background: none; padding: 0; }

/* MR view */
.mr-panel {
  display: grid;
  grid-template-columns: 260px 1fr 300px;
  height: 100%;
  min-height: 0;
}
.mr-col { overflow: auto; padding: 14px; }
.mr-col.center { background: var(--bg-canvas); position: relative; }
.mr-col.left { border-right: 1px solid var(--border); }
.mr-col.right { border-left: 1px solid var(--border); background: var(--panel); }
.diff-legend { display: flex; gap: 10px; font-size: 11px; color: var(--fg-muted); padding: 6px 0; }
.diff-legend .dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: 4px; }
.node.ghost-added { border-style: dashed; border-color: oklch(0.6 0.16 150); background: color-mix(in oklch, oklch(0.6 0.16 150) 5%, var(--panel)); }
.node.ghost-removed { border-style: dashed; border-color: oklch(0.6 0.2 25); background: color-mix(in oklch, oklch(0.6 0.2 25) 5%, var(--panel)); opacity: 0.7; }
.node.ghost-modified { border-color: oklch(0.65 0.15 85); background: color-mix(in oklch, oklch(0.65 0.15 85) 6%, var(--panel)); }

.comment {
  background: var(--bg-subtle);
  border-left: 2px solid var(--accent);
  padding: 8px 10px;
  border-radius: 0 6px 6px 0;
  font-size: 11.5px;
  margin-bottom: 8px;
}
.comment .who { font-weight: 600; font-size: 12px; margin-bottom: 2px; }
.comment .where { font-family: var(--font-mono); font-size: 10px; color: var(--fg-faint); }

/* Misc */
.hstack { display: flex; align-items: center; gap: 8px; }
.vstack { display: flex; flex-direction: column; gap: 8px; }
.muted { color: var(--fg-muted); }
.faint { color: var(--fg-faint); }
.mono { font-family: var(--font-mono); }
.sep { height: 1px; background: var(--border); margin: 10px 0; }

.btn {
  display: inline-flex; align-items: center; gap: 6px; justify-content: center;
  height: 28px;
  padding: 0 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel);
  font-size: 12px;
  color: var(--fg);
  transition: background .12s;
}
.btn:hover { background: var(--panel-hover); }
.btn.primary { background: var(--accent); color: white; border-color: var(--accent); }
.btn.primary:hover { opacity: 0.92; background: var(--accent); }
.btn.ghost { background: none; border-color: transparent; }
.btn.ghost:hover { background: var(--panel-hover); }
.btn.small { height: 24px; padding: 0 8px; font-size: 11px; }

.pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  color: var(--fg-muted);
}

/* Type dots inline */
.type-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }

/* Empty / generic illustrations */
.notch-title { display: flex; align-items: baseline; gap: 10px; }
.notch-title h2 { margin: 0; font-size: 16px; }
.notch-title .sub { color: var(--fg-muted); font-size: 12px; }

/* Dashboard */
.dash-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
}
.project-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 6px;
  cursor: pointer;
  align-items: center;
}
.project-row:hover { background: var(--panel-hover); }
.project-row .name { font-weight: 500; }
.project-row .stat { font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-faint); }

.thumb {
  width: 36px; height: 36px;
  border-radius: 5px;
  background:
    linear-gradient(135deg, color-mix(in oklch, var(--accent) 40%, white), color-mix(in oklch, var(--accent) 10%, white));
}
[data-theme="dark"] .thumb {
  background: linear-gradient(135deg, color-mix(in oklch, var(--accent) 50%, black), color-mix(in oklch, var(--accent) 20%, black));
}

/* Reading-history watermark */
.history-banner {
  position: absolute;
  top: 50px; left: 50%; transform: translateX(-50%);
  padding: 6px 12px;
  background: oklch(0.9 0.1 60 / 0.9);
  color: oklch(0.3 0.1 60);
  border-radius: 6px;
  font-size: 11.5px;
  font-family: var(--font-mono);
  z-index: 6;
}

/* Scroll */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 5px; border: 2px solid var(--panel); }
::-webkit-scrollbar-track { background: transparent; }


/* ============== Data / API / Automation / Map nodes ============== */
.db-node, .api-node, .auto-node, .map-node {
  font-size: 11.5px;
}
.db-head, .api-head, .auto-head, .map-head {
  border-bottom: 1px solid var(--border);
}

/* DB */
.db-icon {
  background: color-mix(in oklch, var(--t-row) 25%, transparent);
  color: var(--t-row);
  font-size: 13px;
}
.db-open {
  border-left: 3px solid var(--t-row);
}
.db-badge-open {
  font-size: 9.5px;
  padding: 2px 6px;
  background: color-mix(in oklch, var(--t-row) 18%, transparent);
  color: var(--t-row);
  border-radius: 3px;
  letter-spacing: 0.4px;
  font-weight: 600;
}
.db-view-toggle {
  display: flex;
  gap: 4px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  align-items: center;
  background: var(--bg-subtle);
}
.db-view-pill {
  font-family: var(--font-mono);
  font-size: 9.5px;
  padding: 2px 6px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 3px;
  cursor: pointer;
  color: var(--fg-muted);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}
.db-view-pill:hover { background: var(--panel); }
.db-view-pill.active {
  background: var(--panel);
  border-color: var(--border-strong);
  color: var(--fg);
  font-weight: 600;
}
.db-open-btn {
  font-family: var(--font-mono);
  font-size: 9.5px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 2px 6px;
  color: var(--fg-muted);
  cursor: pointer;
}
.db-open-btn:hover { background: var(--panel-hover); color: var(--fg); }

.db-compact { padding: 8px 10px; }
.db-compact-row { display: flex; align-items: baseline; gap: 6px; margin-bottom: 6px; }
.db-name { font-size: 12px; color: var(--fg); font-weight: 500; }
.db-compact-schema { display: flex; flex-wrap: wrap; gap: 4px; }
.db-col-chip {
  display: inline-flex; align-items: center; gap: 4px;
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 1px 6px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--fg-muted);
}
.db-col-dot { width: 5px; height: 5px; border-radius: 50%; display: inline-block; }

.db-schema { padding: 4px 10px 10px; }
.db-schema-head {
  display: grid;
  grid-template-columns: 1.6fr 1fr 0.8fr;
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--fg-faint);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.db-schema-row {
  display: grid;
  grid-template-columns: 1.6fr 1fr 0.8fr;
  align-items: baseline;
  padding: 3px 0;
  font-size: 11px;
}
.db-pk {
  font-family: var(--font-mono);
  font-size: 9px;
  padding: 0 4px;
  margin-right: 6px;
  background: color-mix(in oklch, var(--t-row) 20%, transparent);
  color: var(--t-row);
  border-radius: 2px;
  letter-spacing: 0.4px;
}

.db-preview {
  padding: 4px 0 8px;
}
.db-preview-head {
  display: grid;
  grid-template-columns: repeat(4, 1fr) auto;
  gap: 6px;
  padding: 6px 10px 5px;
  border-bottom: 1px solid var(--border);
  color: var(--fg-faint);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.db-preview-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  padding: 3px 10px;
  border-bottom: 1px solid color-mix(in oklch, var(--border) 60%, transparent);
}
.db-preview-row:last-of-type { border-bottom: none; }
.db-preview-foot {
  padding: 4px 10px 2px;
  font-size: 10px;
}

/* API */
.api-node { min-width: 300px; }
.api-icon {
  background: color-mix(in oklch, var(--st-running) 25%, transparent);
  color: var(--st-running);
  font-size: 14px;
}
.api-live-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--st-cached);
  box-shadow: 0 0 0 0 var(--st-cached);
  animation: apiPulse 1.6s ease-in-out infinite;
}
@keyframes apiPulse {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in oklch, var(--st-cached) 50%, transparent); }
  50%      { box-shadow: 0 0 0 6px color-mix(in oklch, var(--st-cached) 0%, transparent); }
}
.api-url-row {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 10px;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border);
}
.api-method {
  color: white;
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 3px;
  letter-spacing: 0.5px;
}
.api-url {
  flex: 1;
  font-size: 10.5px;
  color: var(--fg);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.api-copy-btn {
  background: transparent;
  border: none;
  color: var(--fg-muted);
  cursor: pointer;
  font-size: 13px;
  padding: 0 2px;
}
.api-copy-btn:hover { color: var(--fg); }

.api-meta-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border-bottom: 1px solid var(--border);
}
.api-meta-item {
  background: var(--panel);
  padding: 5px 10px;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.api-logs {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
}
.api-logs-head {
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 4px;
}
.api-log-row {
  display: flex;
  gap: 6px;
  padding: 2px 0;
  font-size: 10px;
  align-items: center;
}
.api-log-status {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  min-width: 26px;
}

.api-test-row {
  padding: 6px 10px;
  display: flex;
  gap: 8px;
  justify-content: space-between;
}

/* Automation */
.auto-node { border-left: 3px solid var(--t-trigger); }
.auto-body { padding: 8px 10px; }
.auto-row {
  display: flex;
  gap: 8px;
  justify-content: space-between;
  padding: 2px 0;
  border-bottom: 1px dashed color-mix(in oklch, var(--border) 70%, transparent);
}
.auto-row:last-of-type { border-bottom: none; }
.auto-pulse {
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* Map */
.map-canvas {
  position: relative;
}
.map-canvas svg { display: block; }
.map-legend {
  display: flex;
  gap: 10px;
  padding: 4px 10px 6px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-subtle);
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--fg-muted);
  align-items: center;
}
.map-dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  margin-right: 4px;
}

/* Port-label rows inside specialized nodes */
.node-ports-labels {
  padding: 4px 10px 6px;
}
.node-ports-labels .port-row {
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 1px 0;
  color: var(--fg-muted);
}
.node-ports-labels .port-row.out {
  justify-content: flex-end;
  text-align: right;
}

/* Type-refuse flash */
@keyframes typeRefuseFlash {
  0%   { box-shadow: 0 0 0 0 color-mix(in oklch, var(--st-error) 50%, transparent); border-color: var(--st-error); }
  100% { box-shadow: 0 0 0 14px color-mix(in oklch, var(--st-error) 0%, transparent); border-color: var(--border); }
}
.node.type-refuse { animation: typeRefuseFlash 0.6s ease-out; }

/* Toast (type error) */
.nf-toast-error {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--st-error);
  color: white;
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 12.5px;
  box-shadow: var(--shadow-lg);
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  animation: toastIn 0.2s ease-out;
}
@keyframes toastIn {
  from { transform: translate(-50%, 20px); opacity: 0; }
  to   { transform: translate(-50%, 0);    opacity: 1; }
}

/* === Port reject flash (type mismatch) === */
@keyframes portReject {
  0%   { transform: scale(1);   box-shadow: 0 0 0 0 rgba(229,72,77,0.55); }
  40%  { transform: scale(1.55); box-shadow: 0 0 0 10px rgba(229,72,77,0); }
  100% { transform: scale(1);   box-shadow: 0 0 0 0 rgba(229,72,77,0); }
}
.port.port-reject {
  background: #e5484d !important;
  animation: portReject 0.55s ease-out;
}
.port.port-reject::after {
  content: '✕';
  position: absolute; inset: -10px;
  display: grid; place-items: center;
  color: #e5484d; font-weight: 700; font-size: 14px;
  pointer-events: none;
}

/* === Tour pulse (showcase walkthrough) === */
@keyframes tourPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(var(--accent-rgb, 100, 100, 255), 0); }
  50%      { box-shadow: 0 0 0 8px rgba(0, 170, 140, 0.35), 0 0 24px 6px rgba(0, 170, 140, 0.25); }
}
.tour-pulse {
  animation: tourPulse 1.8s ease-in-out infinite;
  position: relative; z-index: 10;
}
.tour-pulse::before {
  content: ''; position: absolute; inset: -6px; border-radius: 14px;
  border: 2px solid var(--accent); pointer-events: none;
  animation: tourPulse 1.8s ease-in-out infinite;
}