/* ── Generate canvas — NOMUS-derived dark theme, token layer ── */
  :root {
    --bg: #0B0C0B;            /* near-black, forest-tinted */
    --grid-dot: rgba(237, 237, 234, 0.05);
    --surface: #141613;       /* node card face */
    --surface-2: #1A1C19;     /* inputs, selects, chips */
    --border: rgba(237, 237, 234, 0.16);
    --border-soft: rgba(237, 237, 234, 0.09);
    --fg: #EDEDEA;
    --muted: #8E908A;
    --faint: #5C5E58;
    --accent: #9EFFBF;
    --accent-fg: #12271B;
    --gold: #F4D35E;
    --danger: #FF8C69;
    --hair: 1px solid var(--border);
    --r: 2px;                 /* the only radius */
    --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
    --display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
    --card-tick: var(--muted);
    /* typed-port + wire colors (JS reads these onto the 2D wire canvas) */
    --port-text: #9EFFBF;
    --port-image: #F4D35E;
    --port-video: #7FD4FF;
    --port-audio: #FF8C69;
    --wire: rgba(158, 255, 191, 0.55);
    --wire-hot: #9EFFBF;
    --wire-dot: #9EFFBF;
  }
  @font-face {
    font-family: "JetBrains Mono";
    src: url("/static/fonts/jetbrains-mono.woff2") format("woff2");
    font-display: swap;
  }
  @font-face {
    font-family: "Space Grotesk";
    src: url("/static/fonts/space-grotesk.woff2") format("woff2");
    font-weight: 300 700;
    font-display: swap;
  }

  #gc-overlay {
    display: none; position: fixed; inset: 0; z-index: 9300;
    background: var(--bg); flex-direction: column;
    font-family: var(--mono);
    color: var(--fg);
  }
  #gc-overlay.open { display: flex; }
  #gc-header {
    display: flex; align-items: center; gap: 14px;
    height: 52px; padding: 0 18px; flex-shrink: 0;
    background: var(--bg);
    border-bottom: var(--hair);
  }
  #gc-header button {
    background: transparent; border: 1px solid transparent; color: var(--muted);
    font: 12px/1 var(--mono); border-radius: var(--r);
    padding: 7px 12px; cursor: pointer; letter-spacing: 0.04em;
    transition: border-color .15s, color .15s;
  }
  #gc-header button:hover { border-color: var(--border); color: var(--fg); }
  #gc-name {
    background: transparent; border: 1px solid transparent; outline: none; color: var(--fg);
    font: 500 13px/1.2 var(--mono); width: 260px;
    border-radius: var(--r); padding: 7px 10px;
  }
  #gc-name:hover, #gc-name:focus { border-color: var(--border-soft); }
  .gc-spacer { flex: 1; }
  #gc-zoom { font-size: 11px; color: var(--muted); min-width: 44px; text-align: right; }
  #gc-viewport {
    flex: 1; position: relative; overflow: hidden; display: none;
    background-image: radial-gradient(var(--grid-dot) 1px, transparent 1px);
    background-size: 24px 24px; cursor: default; touch-action: none;
  }
  #gc-viewport.panning { cursor: grabbing; }
  #gc-stage { position: absolute; left: 0; top: 0; transform-origin: 0 0; }
  #gc-hint {
    position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%);
    font-size: 10px; color: var(--muted); pointer-events: none;
    letter-spacing: 0.04em;
    background: var(--surface);
    padding: 6px 14px; border-radius: var(--r);
  }
  #gc-hint-tag {
    display: inline-flex; align-items: center;
    color: var(--accent); font-weight: 700; letter-spacing: 0.12em;
    text-transform: uppercase; margin-right: 8px;
  }
  #gc-hint-tag-face { text-transform: none; letter-spacing: normal; margin-right: 6px; }
  #gc-hint-tag::after { content: '\2014'; margin-left: 6px; color: var(--muted); font-weight: 400; }
  /* ── node card: NOMUS blueprint card w/ corner ticks ── */
  .gc-node {
    position: absolute; z-index: 2; background: var(--surface);
    border: var(--hair); border-radius: var(--r);
    display: flex; flex-direction: column;
    /* overflow must stay visible — the connect ports live OUTSIDE the box */
    overflow: visible;
    transition: border-color .15s;
  }
  .gc-node:hover { border-color: var(--muted); }
  /* blueprint corner ticks — overlay registers on the border line */
  .gc-node::after {
    content: "";
    position: absolute;
    inset: -1px;
    pointer-events: none;
    background-image:
      linear-gradient(var(--card-tick), var(--card-tick)),
      linear-gradient(var(--card-tick), var(--card-tick)),
      linear-gradient(var(--card-tick), var(--card-tick)),
      linear-gradient(var(--card-tick), var(--card-tick)),
      linear-gradient(var(--card-tick), var(--card-tick)),
      linear-gradient(var(--card-tick), var(--card-tick)),
      linear-gradient(var(--card-tick), var(--card-tick)),
      linear-gradient(var(--card-tick), var(--card-tick));
    background-repeat: no-repeat;
    background-size: 10px 1px, 1px 10px, 10px 1px, 1px 10px,
                     10px 1px, 1px 10px, 10px 1px, 1px 10px;
    background-position: left top, left top, right top, right top,
                         left bottom, left bottom, right bottom, right bottom;
  }
  .gc-node.dragging, .gc-node.selected {
    --card-tick: var(--accent);
    border-color: var(--accent);
  }
  .gc-node.rendering { --card-tick: var(--accent); border-color: var(--accent); }
  .gc-node.rendering::after { animation: gc-tick-pulse 1.3s ease-in-out infinite; }
  @keyframes gc-tick-pulse {
    0%, 100% { filter: drop-shadow(0 0 0 transparent); opacity: 0.6; }
    50% { filter: drop-shadow(0 0 5px var(--card-tick)) drop-shadow(0 0 2px var(--card-tick)); opacity: 1; }
  }
  .gc-node-bar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 8px 12px 4px; cursor: grab; user-select: none;
  }
  .gc-node-kind {
    font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
    font-family: var(--mono);
    color: var(--muted);
  }
  .gc-node-del {
    background: none; border: none; color: var(--muted); cursor: pointer;
    font-size: 11px; padding: 2px 4px; border-radius: var(--r);
  }
  .gc-node-del:hover { color: var(--danger); }
  .gc-node textarea {
    flex: 1; background: transparent; border: none; outline: none; resize: none;
    color: var(--fg); font: 13px/1.55 var(--mono);
    padding: 4px 12px 12px; min-height: 90px;
  }
  .gc-node textarea::placeholder { color: var(--faint); }
  #gc-home { flex: 1; display: none; align-items: flex-start; justify-content: center; overflow-y: auto; }
  #gc-home-inner { width: min(560px, 92vw); padding: 64px 0 40px; }
  #gc-home-title {
    font-family: var(--mono); font-size: 16px; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent);
  }
  #gc-home-sub { font-size: 12px; color: var(--muted); margin: 6px 0 26px; }
  #gc-new-btn {
    background: var(--accent); color: var(--accent-fg); border: none; border-radius: var(--r);
    font: 600 12px/1 var(--mono); letter-spacing: 0.04em; padding: 11px 18px;
    cursor: pointer; transition: filter .15s;
  }
  #gc-new-btn:hover { filter: brightness(1.1); }
  #gc-project-list { margin-top: 26px; display: flex; flex-direction: column; gap: 10px; }
  .gc-project-card {
    position: relative;
    display: flex; align-items: center; gap: 12px;
    background: var(--surface); border: var(--hair);
    border-radius: var(--r); padding: 14px 16px; cursor: pointer;
    transition: border-color .15s;
  }
  .gc-project-card::after {
    content: "";
    position: absolute;
    inset: -1px;
    pointer-events: none;
    background-image:
      linear-gradient(var(--card-tick), var(--card-tick)),
      linear-gradient(var(--card-tick), var(--card-tick)),
      linear-gradient(var(--card-tick), var(--card-tick)),
      linear-gradient(var(--card-tick), var(--card-tick)),
      linear-gradient(var(--card-tick), var(--card-tick)),
      linear-gradient(var(--card-tick), var(--card-tick)),
      linear-gradient(var(--card-tick), var(--card-tick)),
      linear-gradient(var(--card-tick), var(--card-tick));
    background-repeat: no-repeat;
    background-size: 10px 1px, 1px 10px, 10px 1px, 1px 10px,
                     10px 1px, 1px 10px, 10px 1px, 1px 10px;
    background-position: left top, left top, right top, right top,
                         left bottom, left bottom, right bottom, right bottom;
  }
  .gc-project-card:hover { border-color: var(--muted); --card-tick: var(--accent); }
  .gc-project-name { font-size: 13px; font-weight: 500; flex: 1; }
  .gc-project-meta { font-size: 11px; color: var(--muted); }
  .gc-project-del {
    background: none; border: none; color: var(--faint); cursor: pointer;
    font-size: 12px; padding: 4px 6px; border-radius: var(--r);
  }
  .gc-project-del:hover { color: var(--danger); }
  /* toolbar, prompt + media nodes, connectors */
  #gc-toolbar {
    position: absolute; bottom: 46px; left: 50%; transform: translateX(-50%);
    display: flex; gap: 8px; z-index: 5;
  }
  #gc-toolbar button {
    background: var(--surface); border: var(--hair);
    color: var(--muted); font: 500 11px/1 var(--mono); letter-spacing: 0.04em;
    border-radius: var(--r); padding: 9px 14px; cursor: pointer;
    transition: border-color .15s, color .15s;
  }
  #gc-toolbar button:hover { border-color: var(--accent); color: var(--fg); }
  .gc-prompt-actions, .gc-node-actions {
    display: flex; align-items: center; gap: 6px; padding: 6px 10px 10px;
  }
  .gc-prompt-actions button, .gc-node-actions button {
    background: var(--surface-2); border: 1px solid var(--border-soft); color: var(--muted);
    font: 500 11px/1 var(--mono); border-radius: var(--r);
    padding: 6px 10px; cursor: pointer; transition: border-color .15s, color .15s;
  }
  .gc-prompt-actions button:hover, .gc-node-actions button:hover {
    border-color: var(--accent); color: var(--fg);
  }
  .gc-status { font-size: 10px; color: var(--accent); margin-left: auto;
    animation: gc-pulse 1.4s ease-in-out infinite; }
  @keyframes gc-pulse { 0%,100% { opacity: .55; } 50% { opacity: 1; } }
  .gc-prompt textarea { min-height: 64px; }
  .gc-media { line-height: 0; overflow: hidden; }
  .gc-media img, .gc-media video { width: 100%; height: auto; display: block; }
  .gc-media audio { width: 100%; padding: 6px 8px; box-sizing: border-box; }
  .gc-image, .gc-video, .gc-audio { cursor: grab; }
  /* wire layer: screen-space 2D canvas (colors come from the tokens above) */
  #gc-wires {
    position: absolute; left: 0; top: 0;
    pointer-events: none; z-index: 1;
  }
  .gc-port {
    position: absolute; width: 12px; height: 12px; border-radius: 50%;
    background: var(--surface-2); border: 2px solid var(--accent); z-index: 6;
    display: flex; align-items: center; justify-content: center;
    color: var(--accent);
    cursor: crosshair; transition: box-shadow .12s, border-color .12s;
    touch-action: none;
  }
  .gc-port svg { pointer-events: none; }
  .gc-port::after { /* invisible generous hit pad */
    content: ""; position: absolute; inset: -8px; border-radius: 50%;
  }
  .gc-port:hover { box-shadow: 0 0 0 4px rgba(158, 255, 191, .22); }
  .gc-port.armed { box-shadow: 0 0 0 5px rgba(158, 255, 191, .3); }
  .gc-port.gc-compat { box-shadow: 0 0 0 3px rgba(237, 237, 234, .2); }
  .gc-port.gc-snap { box-shadow: 0 0 0 6px rgba(158, 255, 191, .45); }
  .gc-port-out { right: -6px; }
  .gc-port-in { left: -6px; cursor: default; }
  .gc-pt-text  { border-color: var(--port-text);  color: var(--port-text); }
  .gc-pt-image { border-color: var(--port-image); color: var(--port-image); }
  .gc-pt-video { border-color: var(--port-video); color: var(--port-video); }
  .gc-pt-audio { border-color: var(--port-audio); color: var(--port-audio); }
  .gc-run-row {
    display: flex; gap: 6px; align-items: center; padding: 8px 10px 2px;
  }
  .gc-model {
    flex: 1; background: var(--surface-2);
    border: 1px solid var(--border-soft); border-radius: var(--r);
    color: var(--muted); font: 11px/1.2 var(--mono);
    padding: 6px 8px; outline: none; min-width: 0; cursor: pointer;
  }
  .gc-model option { background: var(--surface-2); color: var(--fg); }
  .gc-model:focus { border-color: var(--accent); }
  .gc-run {
    background: var(--accent); color: var(--accent-fg); border: none; border-radius: var(--r);
    font: 600 11px/1 var(--mono); padding: 7px 14px;
    cursor: pointer; transition: filter .15s;
  }
  .gc-run:hover { filter: brightness(1.12); }
  .gc-media-empty {
    padding: 26px 12px; text-align: center; font-size: 10px; color: var(--faint);
    letter-spacing: 0.08em; text-transform: uppercase;
    border: 1px dashed var(--border-soft);
    border-radius: var(--r); margin: 8px 10px 0; line-height: 1.4;
  }
  .gc-ref { cursor: grab; }
  .gc-node-foot {
    display: flex; align-items: center; gap: 6px; padding: 7px 10px 9px;
  }
  .gc-foot-spacer { flex: 1; }
  .gc-node-foot button, .cfg-actions button {
    background: var(--surface-2); border: 1px solid var(--border-soft); color: var(--muted);
    font: 500 11px/1 var(--mono); border-radius: var(--r);
    padding: 6px 11px; cursor: pointer; transition: border-color .15s, color .15s;
  }
  .gc-node-foot button:hover, .cfg-actions button:hover {
    border-color: var(--accent); color: var(--fg);
  }
  .gc-node-foot .gc-run, .cfg-actions .primary {
    background: var(--accent); color: var(--accent-fg); border-color: transparent; font-weight: 600;
  }
  .gc-node-foot .gc-run:hover, .cfg-actions .primary:hover { filter: brightness(1.12); background: var(--accent); color: var(--accent-fg); }
  #gc-nodecfg {
    position: fixed; z-index: 9400; width: 320px;
    background: var(--surface);
    border: var(--hair); border-radius: var(--r);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    font-family: var(--mono); color: var(--fg);
  }
  #gc-nodecfg-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 16px 8px;
  }
  #gc-nodecfg-title { font-size: 11px; font-weight: 600; letter-spacing: .1em; color: var(--muted); text-transform: uppercase; }
  #gc-nodecfg-close {
    background: none; border: none; color: var(--muted); cursor: pointer;
    font-size: 12px; padding: 4px; border-radius: var(--r);
  }
  #gc-nodecfg-close:hover { color: var(--fg); }
  #gc-nodecfg-body { padding: 4px 16px 14px; display: flex; flex-direction: column; gap: 12px; }
  .cfg-row { display: flex; flex-direction: column; gap: 5px; }
  .cfg-row label { font-size: 11px; color: var(--muted); }
  .cfg-hint { color: var(--faint); font-size: 10px; }
  .cfg-row select, .cfg-row textarea {
    background: var(--surface-2); border: 1px solid var(--border-soft);
    border-radius: var(--r); color: var(--fg); font: 12px/1.4 var(--mono);
    padding: 8px 10px; outline: none;
  }
  .cfg-row select { cursor: pointer; }
  .cfg-row select option { background: var(--surface-2); }
  .cfg-row textarea { min-height: 60px; resize: vertical; }
  .cfg-row select:focus, .cfg-row textarea:focus { border-color: var(--accent); }
  .cfg-actions { display: flex; gap: 8px; align-items: center; padding-top: 2px; }
  .cfg-note {
    font-size: 10px; color: var(--accent); letter-spacing: .02em;
    background: rgba(158, 255, 191, 0.07); border-radius: var(--r); padding: 6px 9px;
  }
  .gc-llm-out {
    flex: 1; background: transparent; border: none; outline: none; resize: none;
    color: var(--fg); font: 12px/1.55 var(--mono);
    padding: 4px 12px 6px; min-height: 110px;
  }
  .gc-llm .gc-node-bar .gc-node-kind { color: var(--accent); }
  .gc-resize {
    position: absolute; right: 2px; bottom: 2px; width: 14px; height: 14px;
    cursor: nwse-resize; z-index: 5; opacity: 0.45; transition: opacity .15s;
    background:
      linear-gradient(135deg, transparent 52%, var(--muted) 53%, transparent 57%,
                      transparent 68%, var(--muted) 69%, transparent 73%) no-repeat;
  }
  .gc-node:hover .gc-resize { opacity: 0.9; }
  #gc-debug {
    position: absolute; bottom: 14px; left: 16px; z-index: 6;
    font-size: 11px; color: var(--accent); opacity: 0; transition: opacity .3s;
    background: var(--surface); border: var(--hair);
    padding: 5px 12px; border-radius: var(--r);
    pointer-events: none;
  }

  /* ── batou canvas assistant: floating bottom-right chat button + drawer ── */
  #gc-assist-btn {
    position: fixed; right: 24px; bottom: 24px; z-index: 20;
    width: 52px; height: 52px; border-radius: 50%;
    background: var(--surface-2); color: var(--muted); border: var(--hair);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
    transition: background .15s, color .15s, border-color .15s, transform .15s;
  }
  #gc-assist-btn:hover {
    background: var(--accent); color: var(--accent-fg); border-color: transparent;
    transform: scale(1.05);
  }
  #gc-assist-btn-face { font: 700 15px/1 var(--mono); letter-spacing: 0; }
  #gc-assist {
    position: fixed; top: 0; right: 0; bottom: 0; width: 420px; max-width: 92vw;
    display: flex; flex-direction: column;
    background: var(--bg); border-left: var(--hair);
    z-index: 9350; /* above #gc-overlay (9300), below #gc-nodecfg (9400) */
    font-family: var(--mono); color: var(--fg);
  }
  #gc-assist[hidden] { display: none; } /* flex beats [hidden] otherwise */
  #gc-assist-head {
    display: flex; align-items: center; justify-content: space-between;
    height: 52px; padding: 0 16px; flex-shrink: 0; border-bottom: var(--hair);
  }
  #gc-assist-title {
    font-size: 11px; font-weight: 700; letter-spacing: 0.12em;
    text-transform: uppercase; color: var(--accent);
  }
  #gc-assist-close {
    background: none; border: none; color: var(--muted); cursor: pointer;
    font-size: 12px; padding: 4px; border-radius: var(--r);
  }
  #gc-assist-close:hover { color: var(--fg); }
  #gc-assist-log {
    flex: 1; min-height: 0; overflow-y: auto;
    padding: 14px 16px; display: flex; flex-direction: column; gap: 14px;
  }
  .gc-assist-msg { display: flex; flex-direction: column; gap: 4px; }
  .gc-assist-role {
    font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--muted);
  }
  .gc-assist-msg.user .gc-assist-role { color: var(--accent); }
  .gc-assist-text {
    font-size: 13px; line-height: 1.55; white-space: pre-wrap;
    color: var(--fg);
  }
  .gc-assist-empty {
    color: var(--faint); font-size: 12px; line-height: 1.6;
    padding: 8px 2px;
  }
  #gc-assist-form {
    display: flex; gap: 8px; align-items: flex-end;
    padding: 12px 16px; border-top: var(--hair); flex-shrink: 0;
  }
  #gc-assist-input {
    flex: 1; background: var(--surface-2); border: 1px solid var(--border-soft);
    border-radius: var(--r); color: var(--fg); font: 13px/1.4 var(--mono);
    padding: 8px 10px; outline: none; resize: none; min-height: 38px; max-height: 140px;
  }
  #gc-assist-input:focus { border-color: var(--accent); }
  #gc-assist-send {
    background: var(--accent); color: var(--accent-fg); border: none;
    border-radius: var(--r); font: 600 11px/1 var(--mono); letter-spacing: 0.04em;
    padding: 10px 14px; cursor: pointer; transition: filter .15s;
  }
  #gc-assist-send:hover { filter: brightness(1.12); }
  #gc-assist-send:disabled { opacity: 0.5; cursor: default; filter: none; }

  /* ── saved workflows drawer — same right-column shell as the assistant ── */
  #gc-workflows {
    position: fixed; top: 0; right: 0; bottom: 0; width: 420px; max-width: 92vw;
    display: flex; flex-direction: column;
    background: var(--bg); border-left: var(--hair);
    z-index: 9350;
    font-family: var(--mono); color: var(--fg);
  }
  #gc-workflows[hidden] { display: none; }
  #gc-workflows-head {
    display: flex; align-items: center; justify-content: space-between;
    height: 52px; padding: 0 16px; flex-shrink: 0; border-bottom: var(--hair);
  }
  #gc-workflows-title {
    font-size: 11px; font-weight: 700; letter-spacing: 0.12em;
    text-transform: uppercase; color: var(--accent);
  }
  #gc-workflows-close {
    background: none; border: none; color: var(--muted); cursor: pointer;
    font-size: 12px; padding: 4px; border-radius: var(--r);
  }
  #gc-workflows-close:hover { color: var(--fg); }
  #gc-workflows-list {
    flex: 1; min-height: 0; overflow-y: auto;
    padding: 14px 16px; display: flex; flex-direction: column; gap: 10px;
  }
  .gc-workflows-empty { color: var(--faint); font-size: 12px; line-height: 1.6; padding: 8px 2px; }

  /* ── groups: labeled frames behind nodes + marquee multi-select ── */
  #gc-groups { position: absolute; left: 0; top: 0; }
  .gc-group {
    position: absolute; z-index: 0; border-radius: var(--r);
    border: 1px dashed var(--border);
    background: color-mix(in srgb, var(--accent) 5%, transparent);
  }
  .gc-group-label {
    position: absolute; top: 5px; left: 9px;
    font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--muted); user-select: none;
  }
  .gc-group-actions {
    position: absolute; top: 3px; right: 5px;
    display: flex; align-items: center; gap: 4px;
  }
  .gc-group-save, .gc-group-run {
    background: var(--surface-2); border: 1px solid var(--border-soft); color: var(--muted);
    font: 500 10px/1 var(--mono); letter-spacing: 0.04em; text-transform: uppercase;
    border-radius: var(--r); padding: 4px 8px; cursor: pointer;
  }
  .gc-group-save:hover, .gc-group-run:hover { border-color: var(--accent); color: var(--fg); }
  .gc-group-run { background: var(--accent); color: var(--accent-fg); border-color: transparent; font-weight: 600; }
  .gc-group-run:hover { filter: brightness(1.12); background: var(--accent); color: var(--accent-fg); }
  .gc-group-save:disabled, .gc-group-run:disabled { opacity: 0.5; cursor: default; filter: none; }
  .gc-group-ungroup {
    background: none; border: none; color: var(--faint); cursor: pointer;
    font-size: 11px; padding: 2px 4px; border-radius: var(--r);
  }
  .gc-group-ungroup:hover { color: var(--danger); }
  #gc-marquee {
    position: absolute; display: none; z-index: 3; pointer-events: none;
    border: 1px dashed var(--accent);
    background: rgba(158, 255, 191, 0.08);
  }
  #gc-selbar {
    position: absolute; display: none; z-index: 7;
  }
  #gc-selbar button {
    background: var(--accent); color: var(--accent-fg); border: none;
    border-radius: var(--r); font: 600 11px/1 var(--mono); letter-spacing: 0.04em;
    padding: 8px 14px; cursor: pointer; white-space: nowrap;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
  }
  #gc-selbar button:hover { filter: brightness(1.12); }