/* Academy Flowgraph - vanilla CSS, Palette B aligned */
.afg-root {
  --afg-bg: #0a0a0a;
  --afg-pane-bg: #131313;
  --afg-pane-bd: #2a2a2a;
  --afg-fg: #d0d0d0;
  --afg-green: #4ade80;
  --afg-gold: #fbbf24;
  --afg-red: #ef4444;
  --afg-blue: #60a5fa;
  --afg-muted: #707070;
  --afg-mono: 'Geist Mono', 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;
  position: relative;
  background: var(--afg-bg);
  color: var(--afg-fg);
  font-family: system-ui, -apple-system, sans-serif;
  user-select: none;
}
.afg-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.6rem 0.8rem;
  background: var(--afg-pane-bg);
  border-bottom: 1px solid var(--afg-pane-bd);
  align-items: center;
}
.afg-toolbar-group {
  display: flex;
  gap: 0.3rem;
  align-items: center;
  padding-right: 0.6rem;
  border-right: 1px solid var(--afg-pane-bd);
}
.afg-toolbar-group:last-child { border-right: none; }
.afg-toolbar-label {
  color: var(--afg-muted);
  font-size: 0.78rem;
  margin-right: 0.3rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.afg-btn {
  background: #1a1a1a;
  border: 1px solid var(--afg-pane-bd);
  color: var(--afg-fg);
  padding: 0.32rem 0.7rem;
  font-size: 0.84rem;
  font-family: var(--afg-mono);
  cursor: pointer;
  border-radius: 3px;
  transition: border-color 80ms, color 80ms;
}
.afg-btn:hover { border-color: var(--afg-green); color: var(--afg-green); }
.afg-btn--primary { color: var(--afg-green); border-color: rgba(74,222,128,0.45); }
.afg-btn--primary:hover { background: rgba(74,222,128,0.1); }
.afg-btn--danger { color: var(--afg-red); border-color: rgba(239,68,68,0.4); }
.afg-btn--danger:hover { background: rgba(239,68,68,0.1); }
.afg-btn--add {
  color: var(--afg-gold);
  border-color: rgba(251,191,36,0.45);
  font-size: 0.8rem;
  padding: 0.28rem 0.55rem;
}
.afg-btn--add:hover { background: rgba(251,191,36,0.1); }

.afg-status {
  margin-left: auto;
  color: var(--afg-muted);
  font-family: var(--afg-mono);
  font-size: 0.78rem;
}
.afg-status--running { color: var(--afg-green); }
.afg-status--err { color: var(--afg-red); }

.afg-canvas {
  position: relative;
  width: 100%;
  height: 620px;
  overflow: hidden;
  background:
    radial-gradient(circle, #1f1f1f 1px, transparent 1px) 0 0 / 24px 24px,
    var(--afg-bg);
  border-bottom: 1px solid var(--afg-pane-bd);
}
.afg-wires {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}
.afg-wire {
  fill: none;
  stroke: var(--afg-green);
  stroke-width: 2;
  opacity: 0.8;
}
.afg-wire--rubber {
  stroke: var(--afg-gold);
  stroke-dasharray: 6 4;
  opacity: 0.7;
}

.afg-node {
  position: absolute;
  min-width: 160px;
  background: var(--afg-pane-bg);
  border: 1px solid var(--afg-pane-bd);
  border-radius: 4px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.4);
  z-index: 2;
  font-size: 0.85rem;
}
.afg-node:hover { border-color: rgba(74,222,128,0.45); }
.afg-node--selected { border-color: var(--afg-green); }
.afg-node-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0.55rem;
  border-bottom: 1px solid var(--afg-pane-bd);
  cursor: move;
  background: #181818;
  border-radius: 4px 4px 0 0;
}
.afg-node-title {
  font-family: var(--afg-mono);
  font-size: 0.82rem;
  color: var(--afg-green);
  font-weight: 500;
  letter-spacing: 0.02em;
}
.afg-node-category {
  color: var(--afg-muted);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.afg-node--source .afg-node-category { color: var(--afg-gold); }
.afg-node--sink .afg-node-category { color: var(--afg-blue); }
.afg-node--viz .afg-node-category { color: var(--afg-red); }
.afg-node-body {
  padding: 0.4rem 0.55rem;
  position: relative;
}
.afg-ports {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
}
.afg-ports-col {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
  flex: 1;
}
.afg-port {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--afg-mono);
  font-size: 0.72rem;
  color: var(--afg-muted);
}
.afg-port--out { justify-content: flex-end; }
.afg-port-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--afg-pane-bd);
  border: 2px solid var(--afg-muted);
  cursor: crosshair;
  flex-shrink: 0;
  transition: transform 80ms, border-color 80ms;
}
.afg-port-dot:hover { transform: scale(1.4); border-color: var(--afg-gold); }
.afg-port-dot--out { border-color: var(--afg-green); }
.afg-port-dot--connected { background: var(--afg-green); border-color: var(--afg-green); }
.afg-port-dot--target { transform: scale(1.5); border-color: var(--afg-gold); background: rgba(251,191,36,0.2); }

.afg-params {
  margin-top: 0.4rem;
  padding-top: 0.4rem;
  border-top: 1px dashed var(--afg-pane-bd);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.afg-param {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--afg-mono);
  font-size: 0.74rem;
}
.afg-param-label {
  color: var(--afg-muted);
  min-width: 50px;
}
.afg-param-input,
.afg-param-select {
  flex: 1;
  background: #1a1a1a;
  border: 1px solid var(--afg-pane-bd);
  color: var(--afg-fg);
  padding: 0.15rem 0.35rem;
  font-family: var(--afg-mono);
  font-size: 0.74rem;
  border-radius: 2px;
  min-width: 0;
}
.afg-param-input:focus,
.afg-param-select:focus { outline: none; border-color: var(--afg-green); }
.afg-param-file {
  flex: 1;
  font-size: 0.7rem;
  color: var(--afg-muted);
}

.afg-viz {
  margin-top: 0.4rem;
  width: 100%;
  height: 110px;
  display: block;
  background: #0a0a0a;
  border: 1px solid var(--afg-pane-bd);
  border-radius: 2px;
}

.afg-node-close {
  background: transparent;
  border: none;
  color: var(--afg-muted);
  cursor: pointer;
  padding: 0 0.25rem;
  font-size: 1rem;
  line-height: 1;
}
.afg-node-close:hover { color: var(--afg-red); }

.afg-sink-download {
  margin-top: 0.3rem;
  display: inline-block;
  color: var(--afg-gold);
  font-size: 0.72rem;
  font-family: var(--afg-mono);
  text-decoration: underline;
  cursor: pointer;
}
.afg-sink-download.afg-disabled { color: var(--afg-muted); cursor: default; text-decoration: none; }

/* Packet-list viewer (NET domain block) */
.afg-packet-list-wrap {
  margin-top: 0.4rem;
  background: #0a0a0a;
  border: 1px solid var(--afg-pane-bd);
  border-radius: 2px;
  width: 100%;
  font-family: var(--afg-mono);
  font-size: 0.66rem;
}
.afg-packet-list-head {
  display: grid;
  grid-template-columns: 36px 36px 1fr 1fr 1.4fr;
  gap: 0.3rem;
  padding: 0.25rem 0.4rem;
  color: var(--afg-muted);
  border-bottom: 1px solid var(--afg-pane-bd);
  background: #131313;
}
.afg-packet-list-body {
  max-height: 140px;
  overflow-y: auto;
  padding: 0.1rem 0;
}
.afg-packet-list-row {
  display: grid;
  grid-template-columns: 36px 36px 1fr 1fr 1.4fr;
  gap: 0.3rem;
  padding: 0.1rem 0.4rem;
  border-bottom: 1px solid #1a1a1a;
  color: var(--afg-fg);
}
.afg-packet-list-row span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.afg-pl-proto {
  text-transform: uppercase;
  font-weight: 500;
}
.afg-pl-proto--tcp { color: var(--afg-green); }
.afg-pl-proto--udp { color: var(--afg-blue); }
.afg-pl-proto--dns { color: var(--afg-gold); }
.afg-pl-proto--icmp { color: var(--afg-red); }
.afg-pl-proto--arp { color: #a855f7; }
.afg-pl-proto--ipv6 { color: #22d3ee; }
.afg-pl-proto--other { color: var(--afg-muted); }
.afg-node--source.afg-node--pkt .afg-node-category { color: var(--afg-gold); }

.afg-hint {
  margin: 0.7rem 0.8rem;
  font-size: 0.82rem;
  color: var(--afg-muted);
  background: #131313;
  border-left: 3px solid var(--afg-gold);
  padding: 0.45rem 0.7rem;
}
.afg-hint code {
  background: #1a1a1a;
  border: 1px solid var(--afg-pane-bd);
  padding: 0.05rem 0.3rem;
  border-radius: 2px;
  font-family: var(--afg-mono);
  font-size: 0.78rem;
  color: var(--afg-green);
}