:root {
  color-scheme: light;
  --background: #f7f7f4;
  --surface: #ffffff;
  --surface-muted: #ededed;
  --canvas: #202225;
  --canvas-grid: rgb(255 255 255 / 0.08);
  --canvas-grid-strong: rgb(255 255 255 / 0.12);
  --node-surface: #36393d;
  --node-surface-strong: #41454a;
  --node-text: #f8fafc;
  --node-muted: #a9b0ba;
  --text: #1f2933;
  --muted: #667085;
  --line: #d0d5dd;
  --accent: #0f9f6e;
  --warning: #b7791f;
  --danger: #c2410c;
  --planned: #6366f1;
  --future: #64748b;
  --external: #2563eb;
  --focus: #2563eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--background);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
output {
  font: inherit;
}

button {
  border: 1px solid var(--text);
  border-radius: 6px;
  background: var(--text);
  color: #ffffff;
  min-height: 40px;
  padding: 0 14px;
  cursor: pointer;
}

button[type="button"] {
  background: #ffffff;
  color: var(--text);
}

button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--focus) 35%, transparent);
  outline-offset: 2px;
}

.app-shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  min-height: 86px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(1.8rem, 3vw, 3.2rem);
  line-height: 1;
}

h2 {
  font-size: 1rem;
}

.token-form {
  display: grid;
  grid-template-columns: minmax(190px, 300px) auto auto;
  gap: 8px;
  align-items: center;
}

.token-form input {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 12px;
  background: #ffffff;
  color: var(--text);
}

.status-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 24px 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--line);
}

.status-strip > div {
  min-width: 0;
  background: var(--surface);
  padding: 14px 16px;
}

.label {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.status-strip strong {
  display: block;
  margin-top: 4px;
  overflow-wrap: anywhere;
  font-size: 1.05rem;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
  gap: 18px;
  align-items: start;
}

.graph-panel,
.event-panel {
  height: min(720px, max(560px, calc(100vh - 260px)));
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.graph-panel {
  display: block;
  position: relative;
  overflow: auto;
  padding: 24px;
  background-color: var(--canvas);
  background-image:
    radial-gradient(circle, var(--canvas-grid-strong) 1px, transparent 1.2px),
    radial-gradient(circle, var(--canvas-grid) 1px, transparent 1.2px);
  background-position:
    0 0,
    12px 12px;
  background-size:
    24px 24px,
    24px 24px;
}

.graph-toolbar {
  position: sticky;
  top: 0;
  left: 0;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 38px;
  margin-bottom: 14px;
  border: 1px solid rgb(255 255 255 / 0.12);
  border-radius: 8px;
  background: rgb(31 34 38 / 0.92);
  box-shadow: 0 10px 24px rgb(0 0 0 / 0.24);
  padding: 5px;
}

.graph-toolbar button {
  min-width: 34px;
  min-height: 30px;
  border-color: rgb(255 255 255 / 0.16);
  background: #2f3338;
  color: #f8fafc;
  padding: 0 10px;
}

.graph-toolbar button:hover {
  background: #3c4148;
}

.graph-toolbar output {
  min-width: 54px;
  color: #d7dde5;
  font-size: 0.78rem;
  font-weight: 800;
  text-align: center;
}

#workflow-graph {
  display: block;
  min-width: 100%;
  height: auto;
  overflow: visible;
}

.edge {
  stroke: #969da8;
  stroke-width: 3;
  stroke-linecap: round;
  fill: none;
}

.edge-arrow {
  fill: currentColor;
}

.edge.live {
  stroke: color-mix(in srgb, var(--accent) 70%, var(--line));
}

.edge.in-development {
  stroke: color-mix(in srgb, var(--warning) 70%, var(--line));
}

.edge.planned {
  stroke: color-mix(in srgb, var(--planned) 65%, var(--line));
  stroke-dasharray: 8 6;
}

.edge.future {
  stroke: color-mix(in srgb, var(--future) 70%, var(--line));
  stroke-dasharray: 5 6;
}

.edge.external {
  stroke: color-mix(in srgb, var(--external) 65%, var(--line));
}

.edge.active {
  color: #f6a524;
  stroke: #f6a524;
}

.edge.success {
  color: #5fd18b;
  stroke: #5fd18b;
}

.edge.error {
  color: #ff6b57;
  stroke: #ff6b57;
}

.edge.idle,
.edge.declared {
  color: #7b8390;
  stroke: #7b8390;
  stroke-dasharray: 7 9;
}

.edge.flowing {
  stroke: var(--accent);
  stroke-dasharray: 10 10;
  animation: flow 1.1s linear infinite;
}

.node-body {
  fill: var(--node-surface);
  stroke: #878e98;
  stroke-width: 2;
  filter: drop-shadow(0 18px 28px rgb(0 0 0 / 0.25));
}

.node-label {
  fill: var(--node-text);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0;
  text-anchor: start;
  dominant-baseline: central;
  pointer-events: none;
}

.node-subtitle {
  fill: var(--node-muted);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0;
  text-anchor: start;
  dominant-baseline: central;
  pointer-events: none;
}

.node-icon-bg {
  fill: var(--node-surface-strong);
  stroke: rgb(255 255 255 / 0.12);
  stroke-width: 1;
}

.node-icon-label {
  fill: #f8fafc;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0;
  text-anchor: middle;
  dominant-baseline: central;
  pointer-events: none;
}

.node-port {
  fill: #c4c9d1;
  stroke: var(--canvas);
  stroke-width: 3;
}

.node.workflow .node-icon-bg {
  fill: #8b5cf6;
}

.node.task .node-icon-bg,
.node.turn .node-icon-bg {
  fill: #4f8df7;
}

.node.agent .node-icon-bg {
  fill: #22a06b;
}

.node.tool .node-icon-bg {
  fill: #d98522;
}

.node.external .node-icon-bg {
  fill: #6d5dfc;
}

.node.handoff .node-icon-bg {
  fill: #0891b2;
}

.node.guardrail .node-icon-bg {
  fill: #dc2626;
}

.circle-label {
  text-anchor: middle;
  dominant-baseline: middle;
}

.node.service .node-body,
.node.source .node-body,
.node.sink .node-body,
.node.workflow .node-body,
.node.task .node-body {
  fill: #fbfcfd;
}

.node.live .node-body {
  stroke: var(--accent);
}

.node.in-development .node-body {
  stroke: var(--warning);
}

.node.planned .node-body {
  stroke: var(--planned);
  stroke-dasharray: 6 4;
}

.node.future .node-body {
  stroke: var(--future);
  stroke-dasharray: 5 5;
}

.node.external .node-body {
  stroke: #8b7dff;
}

.node.idle .node-body {
  stroke: #737b87;
  stroke-dasharray: 8 7;
}

.status-dot {
  fill: var(--line);
  stroke: var(--node-surface);
  stroke-width: 2;
}

.status-dot.live {
  fill: var(--accent);
}

.status-dot.in-development {
  fill: var(--warning);
}

.status-dot.planned {
  fill: var(--planned);
}

.status-dot.future {
  fill: var(--future);
}

.status-dot.external {
  fill: var(--external);
}

.status-dot.active {
  fill: var(--warning);
}

.status-dot.success {
  fill: var(--accent);
}

.status-dot.error {
  fill: var(--danger);
}

.node.active .node-body {
  stroke: #f6a524;
  stroke-width: 3;
  animation: pulse 1.4s ease-in-out infinite;
}

.node.success .node-body {
  stroke: #5fd18b;
}

.node.error .node-body {
  stroke: #ff6b57;
  stroke-width: 3;
}

.panel-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-height: 64px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}

.archive-form {
  display: grid;
  grid-template-columns: 92px minmax(96px, 1fr) auto;
  gap: 6px;
}

.archive-form input,
.archive-form select {
  min-width: 0;
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #ffffff;
  color: var(--text);
  padding: 0 8px;
}

.archive-form button {
  min-height: 36px;
  padding: 0 10px;
}

.event-feed {
  height: calc(100% - 64px);
  margin: 0;
  padding: 10px;
  overflow: auto;
  list-style: none;
}

.event-item {
  display: grid;
  gap: 4px;
  margin-bottom: 8px;
  border-left: 4px solid var(--line);
  border-radius: 6px;
  background: var(--surface-muted);
  padding: 10px;
}

.event-item.active {
  border-left-color: var(--warning);
}

.event-item.success {
  border-left-color: var(--accent);
}

.event-item.error {
  border-left-color: var(--danger);
}

.event-meta {
  color: var(--muted);
  font-size: 0.78rem;
}

.event-summary {
  font-weight: 700;
  overflow-wrap: anywhere;
}

@keyframes flow {
  to {
    stroke-dashoffset: -20;
  }
}

@keyframes pulse {
  50% {
    filter: drop-shadow(0 0 18px rgb(246 165 36 / 0.55));
  }
}

@media (max-width: 900px) {
  .app-shell {
    padding: 16px;
  }

  .topbar {
    display: grid;
    align-items: start;
  }

  .token-form,
  .status-strip,
  .workspace {
    grid-template-columns: 1fr;
  }

  .panel-header,
  .archive-form {
    grid-template-columns: 1fr;
  }

  .graph-panel,
  .event-panel {
    height: 520px;
  }

  #workflow-graph {
    min-width: 980px;
  }

  .event-feed {
    height: 360px;
  }
}