/* ============================================================
   v6 OS module: the pattern (2017–2020) — automation canvas
   dark node editor: dotted grid, bezier wires, packets, drawer
   ============================================================ */
#os-dark {
  position: absolute; inset: 0; display: none;
  background: var(--k-bg, #101318);
  color: var(--k-ink, #dfe4ea);
  font-family: var(--sans);
  flex-direction: column;
}
#os-dark.on { display: flex; }

/* top bar */
.fw-top {
  flex: none; display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; border-bottom: 1px solid rgba(255, 255, 255, .07);
  background: var(--k-panel, #171b22);
}
.fw-brand { font-weight: 700; font-size: 13.5px; letter-spacing: .02em; color: var(--k-acc, #0fb5a9); }
.fw-name { font-size: 12.5px; color: var(--k-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fw-chip {
  margin-left: auto; font-family: var(--mono); font-size: 10.5px; color: var(--k-acc);
  border: 1px solid color-mix(in srgb, var(--k-acc) 40%, transparent);
  background: color-mix(in srgb, var(--k-acc) 10%, transparent);
  padding: 4px 10px; border-radius: 99px; white-space: nowrap;
}
.fw-exec {
  background: var(--k-acc); color: #06211e; font-weight: 700; font-size: 12.5px;
  padding: 8px 16px; border-radius: var(--k-r, 10px); min-height: 38px;
}
.fw-exec:disabled { opacity: .55; }
.fw-exec.big { width: 100%; margin-top: 8px; }
.fw-year { font-family: var(--mono); font-size: 12px; color: var(--k-dim); }
@media (max-width: 560px) { .fw-name { display: none; } }

/* canvas */
.fw-canvas {
  flex: 1; min-height: 0; overflow: auto; position: relative;
  background:
    radial-gradient(rgba(255, 255, 255, .07) 1px, transparent 1.4px);
  background-size: 22px 22px;
}
.fw-space { transform-origin: 0 0; position: absolute; top: 0; left: 0; }
.fw-canvas::after { content: ""; display: block; width: var(--spacer-w, 100%); height: var(--spacer-h, 100%); pointer-events: none; }
.fw-space > svg { position: absolute; inset: 0; overflow: visible; }
#fw-nodes { position: absolute; inset: 0; }

/* wires */
.fw-wire { fill: none; stroke: #39404c; stroke-width: 2.2; }
.fw-wire.dash { stroke-dasharray: 5 6; stroke: #2c333e; }
.fw-wire.live { stroke: var(--k-acc); stroke-dasharray: 7 6; animation: wire-flow .5s linear infinite; }
.fw-wire.done { stroke: color-mix(in srgb, var(--k-acc) 55%, #39404c); }
@keyframes wire-flow { to { stroke-dashoffset: -13; } }
.fw-packet { fill: var(--k-acc); filter: drop-shadow(0 0 6px var(--k-acc)); }

/* nodes */
.fw-node {
  position: absolute; width: 192px; min-height: 62px;
  display: flex; align-items: center; gap: 10px; text-align: left;
  background: var(--k-panel, #171b22);
  border: 1.5px solid #2b323d; border-radius: var(--k-r, 10px);
  padding: 9px 12px 9px 10px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .35);
  transition: border-color .2s, box-shadow .2s, transform .15s;
  cursor: pointer; color: inherit;
}
.fw-node:hover { transform: translateY(-1px); border-color: #3c4552; }
.fw-node::before, .fw-node::after {
  content: ""; position: absolute; top: 50%; width: 9px; height: 9px; border-radius: 50%;
  background: #39404c; border: 2px solid var(--k-bg); transform: translateY(-50%);
}
.fw-node::before { left: -6px; }
.fw-node::after { right: -6px; }
.fw-node.k-trigger::before { display: none; }
.fw-node.k-trigger { border-radius: 26px var(--k-r, 10px) var(--k-r, 10px) 26px; border-color: color-mix(in srgb, var(--k-acc) 45%, #2b323d); }
.fw-node.k-done::after, .fw-node.k-out::after, .fw-node.k-contact::after { display: none; }
.fw-node.k-warn { border-color: #7a5a2c; }
.fw-node.k-human { border-color: #6b4a4a; }
.fw-node.k-contact { border-style: dashed; border-color: color-mix(in srgb, var(--k-acc) 55%, #2b323d); }
.fw-nic {
  width: 34px; height: 34px; flex: none; display: grid; place-items: center;
  font-size: 16px; border-radius: 9px;
  background: rgba(255, 255, 255, .06);
}
.fw-node.k-trigger .fw-nic { background: color-mix(in srgb, var(--k-acc) 18%, transparent); border-radius: 50%; }
.fw-node.k-route .fw-nic { transform: rotate(0deg); background: rgba(141, 141, 224, .14); }
.fw-node.k-warn .fw-nic { background: rgba(230, 170, 60, .14); }
.fw-nt { min-width: 0; flex: 1; }
.fw-nt b { display: block; font-size: 12px; line-height: 1.25; }
.fw-nt small { display: block; font-size: 10px; color: var(--k-dim); line-height: 1.35; margin-top: 2px; }
.fw-dot { position: absolute; top: -5px; right: -5px; width: 12px; height: 12px; border-radius: 50%; background: #39404c; border: 2px solid var(--k-bg); transition: background .2s; }
.fw-node.run .fw-dot { background: var(--k-acc); animation: dotpulse .7s ease-in-out infinite; }
.fw-node.ok .fw-dot { background: #3fbf7a; }
.fw-node.ok .fw-dot::after { content: ""; }
@keyframes dotpulse { 50% { box-shadow: 0 0 0 5px color-mix(in srgb, var(--k-acc) 30%, transparent); } }
.fw-node.run { border-color: var(--k-acc); box-shadow: 0 0 0 3px color-mix(in srgb, var(--k-acc) 18%, transparent), 0 6px 18px rgba(0, 0, 0, .35); }

/* log strip */
.fw-log {
  flex: none; height: clamp(74px, 17%, 120px); display: flex; gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, .07);
  background: var(--k-panel, #171b22);
  padding: 9px 14px calc(9px + env(safe-area-inset-bottom));
}
.fw-log-cap { flex: none; font-size: 9.5px; text-transform: uppercase; letter-spacing: .12em; color: var(--k-dim); padding-top: 2px; }
#fw-log-lines { flex: 1; overflow-y: auto; font-family: var(--mono); font-size: 11px; line-height: 1.65; color: #b9c1cc; }
.fw-ll.dim { color: var(--k-dim); }
.fw-ll.good { color: #3fbf7a; }
.fw-ll.beat { color: var(--k-acc); }
.fw-ll.sep { height: 6px; }

/* drawer — n8n-style config panel */
.fw-drawer {
  position: absolute; top: 52px; right: 0; bottom: 0; z-index: 30;
  width: min(320px, 88%);
  background: var(--k-panel, #171b22);
  border-left: 1px solid rgba(255, 255, 255, .09);
  box-shadow: -18px 0 40px rgba(0, 0, 0, .45);
  padding: 14px 16px calc(14px + env(safe-area-inset-bottom));
  overflow-y: auto;
  animation: drawer-in .25s ease;
}
@keyframes drawer-in { from { transform: translateX(30px); opacity: 0; } }
.fw-dr-h { display: flex; align-items: center; gap: 10px; }
.fw-dr-h b { flex: 1; font-size: 14px; }
.fw-dr-h button { width: 30px; height: 30px; color: var(--k-dim); font-size: 15px; border-radius: 7px; }
.fw-dr-h button:hover { background: rgba(255, 255, 255, .07); color: #fff; }
.fw-dr-kind { font-family: var(--mono); font-size: 10px; color: var(--k-dim); margin: 8px 0 4px; letter-spacing: .06em; }
.fw-dr-cap { font-size: 9.5px; text-transform: uppercase; letter-spacing: .12em; color: var(--k-dim); margin: 16px 0 7px; border-bottom: 1px solid rgba(255, 255, 255, .07); padding-bottom: 5px; }
.fw-dr-p { font-size: 12.5px; line-height: 1.65; }
.fw-dr-p.dim { color: var(--k-dim); }
.fw-drawer label { display: grid; gap: 5px; font-size: 10.5px; color: var(--k-dim); margin-bottom: 10px; }
.fw-drawer input, .fw-drawer textarea {
  background: rgba(255, 255, 255, .05); color: var(--k-ink);
  border: 1px solid rgba(255, 255, 255, .12); border-radius: 8px;
  padding: 9px 10px; font: inherit; font-size: 13px; outline: none; width: 100%;
}
.fw-drawer input:focus, .fw-drawer textarea:focus { border-color: var(--k-acc); }
.fw-drawer textarea { min-height: 66px; resize: vertical; }
.fw-drawer .f-err { color: #e06a5a; font-size: 10.5px; font-weight: 600; }
.fw-dr-status { min-height: 1.4em; margin-top: 9px; font-size: 12px; color: #3fbf7a; font-weight: 600; }

@media (max-width: 620px) {
  .fw-log { height: 86px; }
  .fw-top { flex-wrap: wrap; row-gap: 6px; }
}
@media (prefers-reduced-motion: reduce) {
  .fw-wire.live, .fw-node.run .fw-dot, .fw-drawer { animation: none; }
}