:root {
  --font-primary: "Roboto", sans-serif;
  --font-title: "Roboto", sans-serif;
  --font-mono: "Roboto Mono", monospace;
}

[data-theme="light"] {
  color-scheme: light;
  --bg-page: rgb(239, 243, 252);
  --bg-panel: rgb(245, 248, 253);
  --bg-panel-muted: rgb(232, 238, 251);
  --bg-terminal: rgb(246, 248, 250);
  --bg-terminal-header: rgb(232, 238, 251);
  --panel-border: rgb(213, 223, 247);
  --shadow-panel: 0 4px 24px rgba(2, 81, 175, 0.1);

  --color-blue: rgb(2, 81, 175);
  --color-amber: rgb(251, 175, 69);
  --color-teal: rgb(2, 120, 100);
  --color-purple: rgb(2, 81, 175);
  --color-pink: rgb(2, 81, 175);
  --color-green: rgb(16, 120, 90);
  --color-red: rgb(200, 60, 60);
  --color-orange: rgb(251, 146, 60);
  --color-text-primary: rgb(28, 30, 33);
  --color-text-secondary: rgba(28, 30, 33, 0.68);
  --color-text-muted: rgba(28, 30, 33, 0.45);
  --color-node-bg: rgb(255, 255, 255);
  --color-path-idle: rgb(213, 223, 247);
  --diagram-surface: rgb(245, 248, 253);
  --grid-stroke: rgba(2, 81, 175, 0.08);

  --journey-btn-bg: rgb(239, 243, 252);
  --journey-btn-bg-hover: rgb(255, 255, 255);
  --journey-btn-bg-active: rgb(255, 255, 255);
  --journey-btn-border: rgb(213, 223, 247);
  --journey-btn-text: rgb(0, 20, 43);
  --journey-btn-text-muted: rgba(0, 20, 43, 0.55);
  --hero-gradient: linear-gradient(
    101.5deg,
    rgb(251, 171, 44) 0%,
    rgb(24, 122, 220) 53%,
    rgb(0, 20, 43) 100%
  );
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg-page: rgb(3, 20, 43);
  --bg-panel: rgba(0, 42, 77, 0.88);
  --bg-panel-muted: rgb(12, 31, 54);
  --bg-terminal: rgba(0, 0, 0, 0.55);
  --bg-terminal-header: rgba(255, 255, 255, 0.03);
  --panel-border: rgb(13, 39, 77);
  --shadow-panel: 0 16px 40px rgba(0, 0, 0, 0.35);

  --color-blue: rgb(77, 143, 212);
  --color-amber: rgb(251, 175, 69);
  --color-teal: rgb(45, 212, 191);
  --color-purple: rgb(167, 139, 250);
  --color-pink: rgb(236, 72, 153);
  --color-green: rgb(16, 185, 129);
  --color-red: rgb(239, 68, 68);
  --color-orange: rgb(251, 146, 60);
  --color-text-primary: rgb(227, 227, 227);
  --color-text-secondary: rgba(227, 227, 227, 0.72);
  --color-text-muted: rgba(227, 227, 227, 0.45);
  --color-node-bg: rgb(0, 42, 77);
  --color-path-idle: rgb(30, 50, 75);
  --diagram-surface: rgb(3, 20, 43);
  --grid-stroke: rgba(255, 255, 255, 0.05);

  --journey-btn-bg: rgb(0, 42, 77);
  --journey-btn-bg-hover: rgb(12, 31, 54);
  --journey-btn-bg-active: rgb(12, 31, 54);
  --journey-btn-border: rgb(13, 39, 77);
  --journey-btn-text: rgb(227, 227, 227);
  --journey-btn-text-muted: rgba(227, 227, 227, 0.55);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-page);
  color: var(--color-text-primary);
  overflow: visible;
  min-height: 0;
  width: 100%;
  margin: 0;
  transition:
    background-color 0.2s ease,
    color 0.2s ease;
}

/* Layout structure */
.app-grid {
  display: flex;
  flex-direction: column;
  min-height: 0;
  width: 100%;
  padding: 0.75rem;
  gap: 0;
  overflow: visible;
  background: var(--bg-page);
}

html[data-embedded="true"] body {
  overflow: hidden;
}

.ui-element {
  background: var(--bg-panel);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  box-shadow: var(--shadow-panel);
  transition:
    background-color 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

/* Header styling */
header.main-header {
  height: 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 24px;
  flex-shrink: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-container {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-blue), var(--color-purple));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-title);
  font-size: 1.2rem;
  box-shadow: 0 0 15px rgba(77, 143, 212, 0.4);
}

.brand-title {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-title span {
  background: linear-gradient(90deg, var(--color-blue), var(--color-teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.header-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  margin-left: 20px;
  transition: color 0.2s ease;
}

.header-links a:hover {
  color: var(--color-blue);
}

/* Journey controls (v3) */
.graph-controls {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem 0.75rem;
  background: var(--bg-panel);
  overflow: visible;
}

.graph-controls-actions {
  position: absolute;
  right: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.graph-control-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border: 1px solid var(--panel-border);
  border-radius: 50%;
  background: var(--journey-btn-bg);
  color: var(--journey-btn-text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease,
    transform 0.15s ease;
  box-shadow: 0 1px 3px rgba(2, 81, 175, 0.08);
}

.graph-control-btn:hover {
  background: var(--journey-btn-bg-hover);
  color: var(--journey-btn-text);
  transform: translateY(-1px);
}

.graph-control-btn.is-paused {
  color: var(--color-amber);
}

.journey-pills {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  background: var(--journey-btn-bg);
  box-shadow: 0 1px 3px rgba(2, 81, 175, 0.08);
}

.journey-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 1rem;
  background: transparent;
  border: none;
  border-radius: 999px;
  color: var(--journey-btn-text-muted);
  font-family: var(--font-primary);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
  white-space: nowrap;
}

.journey-btn i {
  font-size: 0.8rem;
  width: 0.95rem;
  text-align: center;
  color: inherit !important;
}

.journey-btn:hover {
  color: var(--journey-btn-text);
}

.journey-btn.active.j-p2p {
  background: var(--color-blue);
  color: #fff;
}

.journey-btn.active.j-multicast {
  background: var(--color-amber);
  color: #fff;
}

.journey-btn.active.j-p2p-mcp {
  background: var(--color-teal);
  color: #fff;
}

/* Arrow stepper (v3) */
.arrow-stepper-wrap {
  --step-accent: var(--color-blue);
  --step-accent-hover: rgba(2, 81, 175, 0.05);
  --step-accent-active: rgba(2, 81, 175, 0.1);
  --step-track-border: color-mix(in srgb, var(--step-accent) 14%, var(--panel-border));
  --step-arrow-edge-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 100' preserveAspectRatio='none'%3E%3Cpath d='M0,0 L10,50 L0,100' fill='none' stroke='white' stroke-width='1.5' vector-effect='non-scaling-stroke' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  position: relative;
  z-index: 4;
  padding: 0 1rem 1rem;
  background: var(--bg-panel);
  overflow: visible;
}

[data-theme="dark"] .arrow-stepper-wrap {
  --step-accent-hover: rgba(77, 143, 212, 0.08);
  --step-accent-active: rgba(77, 143, 212, 0.14);
  --step-track-border: color-mix(in srgb, var(--step-accent) 34%, rgb(88, 118, 158));
}

.arrow-stepper-wrap--multicast {
  --step-accent: var(--color-amber);
  --step-accent-hover: rgba(251, 175, 69, 0.06);
  --step-accent-active: rgba(251, 175, 69, 0.12);
}

[data-theme="dark"] .arrow-stepper-wrap--multicast {
  --step-accent-hover: rgba(251, 175, 69, 0.09);
  --step-accent-active: rgba(251, 175, 69, 0.16);
}

.arrow-stepper-wrap--p2p-mcp {
  --step-accent: var(--color-teal);
  --step-accent-hover: rgba(2, 120, 100, 0.06);
  --step-accent-active: rgba(2, 120, 100, 0.11);
}

[data-theme="dark"] .arrow-stepper-wrap--p2p-mcp {
  --step-accent-hover: rgba(45, 212, 191, 0.09);
  --step-accent-active: rgba(45, 212, 191, 0.15);
}

.step-tooltip {
  position: fixed;
  top: auto;
  bottom: auto;
  z-index: 30;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  background: var(--color-node-bg);
  box-shadow: var(--shadow-panel);
  pointer-events: none;
}

.step-tooltip__title {
  font-size: 0.6875rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text-primary);
  margin-bottom: 0.25rem;
}

.step-tooltip__desc {
  font-size: 0.6875rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.step-tooltip__desc strong {
  font-weight: 600;
  color: var(--color-text-primary);
}

.arrow-stepper {
  display: flex;
  align-items: stretch;
  overflow: hidden;
  border: 1px solid var(--step-track-border);
  border-radius: 10px;
  background: var(--color-node-bg);
}

.arrow-step {
  --arrow-depth: 10px;
  position: relative;
  flex: 1 1 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
  margin-left: calc(var(--arrow-depth) * -1);
  padding: 0.5rem calc(var(--arrow-depth) + 0.65rem) 0.5rem calc(var(--arrow-depth) + 0.65rem);
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-primary);
  text-align: left;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
  clip-path: polygon(
    0 0,
    calc(100% - var(--arrow-depth)) 0,
    100% 50%,
    calc(100% - var(--arrow-depth)) 100%,
    0 100%,
    var(--arrow-depth) 50%
  );
}

.arrow-step:not(.arrow-step--first)::before,
.arrow-step:not(.arrow-step--last)::after {
  content: "";
  position: absolute;
  top: 0;
  width: var(--arrow-depth);
  height: 100%;
  background-color: var(--step-track-border);
  pointer-events: none;
  -webkit-mask-image: var(--step-arrow-edge-mask);
  mask-image: var(--step-arrow-edge-mask);
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
}

.arrow-step:not(.arrow-step--first)::before {
  left: 0;
}

.arrow-step:not(.arrow-step--last)::after {
  right: 0;
}

.arrow-step__badge,
.arrow-step__title {
  position: relative;
  z-index: 1;
}

.arrow-step:hover:not(.active):not(.completed) {
  background: var(--step-accent-hover);
  color: var(--color-text-secondary);
}

.arrow-step--first {
  margin-left: 0;
  padding-left: 0.85rem;
  clip-path: polygon(
    0 0,
    calc(100% - var(--arrow-depth)) 0,
    100% 50%,
    calc(100% - var(--arrow-depth)) 100%,
    0 100%
  );
}

.arrow-step--last {
  padding-right: 0.85rem;
  clip-path: polygon(
    0 0,
    100% 0,
    100% 100%,
    0 100%,
    var(--arrow-depth) 50%
  );
}

.arrow-step.active {
  background: var(--step-accent-active);
  color: var(--step-accent);
  z-index: 1;
}

.arrow-step.completed {
  background: rgba(16, 120, 90, 0.05);
  color: var(--color-text-secondary);
}

[data-theme="dark"] .arrow-step.completed {
  background: color-mix(in srgb, var(--color-green) 16%, var(--color-node-bg));
}

.arrow-step__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: var(--bg-panel-muted);
  color: var(--color-text-muted);
  font-size: 0.625rem;
  font-weight: 700;
}

.arrow-step.active .arrow-step__badge {
  background: var(--step-accent);
  color: #fff;
}

.arrow-step.completed .arrow-step__badge {
  background: var(--color-green);
  color: #fff;
}

.arrow-step__title {
  font-size: 0.6875rem;
  font-weight: 600;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.arrow-step.active .arrow-step__title {
  color: var(--step-accent);
}

.arrow-step.completed .arrow-step__title {
  color: var(--color-text-secondary);
}

@media screen and (max-width: 48em) {
  .graph-controls {
    flex-direction: column;
    align-items: stretch;
    padding-top: 0.85rem;
  }

  .graph-controls-actions {
    position: static;
    justify-content: flex-end;
  }

  .journey-pills {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  [data-theme="light"] .journey-pills {
    border: none;
    background: transparent;
    box-shadow: none;
    border-radius: 0;
    padding: 0;
    gap: 0.5rem;
  }

  .arrow-stepper-wrap {
    overflow-x: auto;
  }

  .arrow-stepper {
    min-width: 42rem;
  }
}

/* 2D Canvas / SVG Pipeline Viewport */
.viewport {
  flex: 0 0 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  position: relative;
  overflow: visible;
  background: var(--bg-panel);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  box-shadow: var(--shadow-panel);
  transition: background 0.2s ease;
  z-index: 0;
}

[data-theme="dark"] .viewport {
  background: var(--bg-panel);
}

.viewport-stage {
  position: relative;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
  min-height: 19rem;
  overflow: hidden;
  background: var(--diagram-surface);
  border-top: 1px solid var(--panel-border);
  border-bottom: 1px solid var(--panel-border);
  transition: background-color 0.2s ease;
  z-index: 0;
}

svg.visual-graph {
  display: block;
  width: min(100%, 940px);
  height: auto;
  aspect-ratio: 812 / 340;
  font-family: var(--font-primary);
  color: var(--color-text-primary);
}

.visual-graph .diagram-backdrop {
  fill: var(--diagram-surface);
}

.visual-graph #grid path {
  stroke: var(--grid-stroke);
}

/* Protocol log (v3 compact) */
.protocol-log {
  flex-shrink: 0;
  margin: 1rem;
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-panel);
  transition: margin 0.2s ease, border-radius 0.2s ease;
}

.protocol-log--collapsed {
  margin-bottom: 0.75rem;
}

.protocol-log:not(.protocol-log--collapsed) {
  margin: 0;
  border-left: none;
  border-right: none;
  border-bottom: none;
  border-radius: 0;
}

html[data-embedded="true"] .graph-controls,
html[data-embedded="true"] .arrow-stepper-wrap {
  flex-shrink: 0;
}

.protocol-log__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  background: var(--diagram-surface);
}

.protocol-log__toggle {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0;
  border: none;
  background: transparent;
  font: inherit;
  color: var(--color-text-primary);
  cursor: pointer;
  text-align: left;
}

.protocol-log__title {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.protocol-log__dot {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--color-blue);
  box-shadow: 0 0 6px var(--color-blue);
  animation: protocol-log-pulse 2s ease-in-out infinite;
}

@keyframes protocol-log-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.protocol-log__chevron {
  color: var(--color-text-muted);
  font-size: 0.75rem;
  transition: transform 0.2s ease;
}

.protocol-log--collapsed .protocol-log__chevron {
  transform: rotate(-90deg);
}

.protocol-log--collapsed .protocol-log__body {
  display: none;
}

.protocol-log__clear {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.4rem;
  border: none;
  border-radius: 6px;
  background: transparent;
  font: inherit;
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  cursor: pointer;
}

.protocol-log__clear:hover {
  color: var(--color-red);
}

.protocol-log__body {
  max-height: 6.25rem;
  overflow-y: auto;
  padding: 0.65rem 1rem;
  border-top: 1px solid var(--panel-border);
  background: var(--color-node-bg);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
}

.protocol-log:not(.protocol-log--collapsed) .protocol-log__body {
  max-height: 9.5rem;
}

/* Legacy terminal classes kept for log line rendering */
.terminal-line {
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-all;
  animation: fadeIn 0.2s ease-out;
  margin-bottom: 6px;
}

.log-time {
  color: var(--color-text-muted);
}

.log-target {
  color: var(--color-text-secondary);
  background: var(--bg-panel-muted);
  border: 1px solid var(--panel-border);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.72rem;
  display: inline-block;
}

.log-span {
  font-weight: 700;
  font-size: 0.72rem;
  padding: 1px 6px;
  border-radius: 4px;
  text-transform: lowercase;
  letter-spacing: 0.02em;
  display: inline-block;
}
.log-span.comp-agent-a { background: rgba(77, 143, 212, 0.15); color: var(--color-blue); border: 1px solid rgba(77, 143, 212, 0.25); }
.log-span.comp-agent-b { background: rgba(45, 212, 191, 0.15); color: var(--color-teal); border: 1px solid rgba(45, 212, 191, 0.25); }
.log-span.comp-agent-c { background: rgba(167, 139, 250, 0.15); color: var(--color-purple); border: 1px solid rgba(167, 139, 250, 0.25); }
.log-span.comp-agent-d { background: rgba(16, 185, 129, 0.15); color: var(--color-green); border: 1px solid rgba(16, 185, 129, 0.25); }
.log-span.comp-slim-node-1 { background: rgba(240, 168, 48, 0.15); color: var(--color-amber); border: 1px solid rgba(240, 168, 48, 0.25); }
.log-span.comp-slim-node-2 { background: rgba(251, 146, 60, 0.15); color: var(--color-orange); border: 1px solid rgba(251, 146, 60, 0.25); }
.log-span.comp-controller { background: rgba(2, 81, 175, 0.12); color: var(--color-blue); border: 1px solid rgba(2, 81, 175, 0.22); }
.log-span.comp-system { background: rgba(156, 163, 175, 0.1); color: var(--color-text-secondary); border: 1px solid rgba(156, 163, 175, 0.18); }
.log-span.comp-mcp { background: rgba(45, 212, 191, 0.15); color: var(--color-teal); border: 1px solid rgba(45, 212, 191, 0.25); }

.log-msg {
  color: var(--color-text-primary);
}

/* Node graphic elements styling */
.node-rect {
  fill: var(--color-node-bg);
  stroke-width: 1.5;
  rx: 10px;
  ry: 10px;
  transition: fill 0.2s ease, stroke 0.2s ease;
}

.node-rect.agent {
  stroke: var(--color-blue);
}

.node-rect--sender {
  stroke: var(--color-text-primary);
  stroke-width: 1.75;
}

.node-rect--peripheral {
  stroke: var(--panel-border);
}

.node-rect.router {
  stroke: var(--color-amber);
}

.node-rect.router.route-active,
.node-rect.router.node-rect--remote.route-active {
  fill: var(--color-blue);
  stroke: var(--color-amber);
}

.node-rect.router.route-active ~ foreignObject .graph-node__title,
.node-rect.router.route-active ~ foreignObject .graph-node__desc,
.node-rect.router.node-rect--remote.route-active ~ foreignObject .graph-node__title,
.node-rect.router.node-rect--remote.route-active ~ foreignObject .graph-node__desc {
  color: #fff;
}

.node-rect.router.node-rect--remote {
  stroke: var(--color-amber);
}

.node-rect.controller {
  stroke: var(--color-blue);
}

.node-rect--mcp {
  stroke: var(--color-teal);
}

.node-rect--operator {
  stroke: var(--color-blue);
}

/* Figma GraphCard layout (flex via foreignObject) */
foreignObject {
  overflow: hidden;
  pointer-events: none;
}

.graph-node {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  width: 100%;
  height: 100%;
  padding: 11px 14px;
  min-width: 0;
  font-family: var(--font-primary);
  pointer-events: none;
}

.graph-node__row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.graph-node__icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.graph-node__icon img {
  width: 16px;
  height: 16px;
  display: block;
  object-fit: contain;
}

.graph-node__icon--operator,
.graph-node__icon--mcp {
  background: #f3f4f8;
}

.graph-node__icon--slim {
  background: #eef2ff;
  color: var(--color-blue);
}

.graph-node__icon--claude {
  background: #f5ece8;
}

.graph-node__icon--langchain {
  background: #eef6f0;
}

.graph-node__icon--crewai {
  background: #f0f4ff;
}

.graph-node__icon--langgraph {
  background: #f5f3ff;
}

.graph-node__icon--opencode {
  background: #f0f6ff;
}

.graph-node__copy {
  min-width: 0;
  flex: 1;
}

.graph-node__title {
  font-family: var(--font-title);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.graph-node__title--hub {
  font-size: 13px;
}

.graph-node__title--compact {
  font-size: 11px;
}

.graph-node__desc {
  font-size: 10.5px;
  line-height: 1.4;
  color: var(--color-text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.graph-node__badge {
  align-self: flex-start;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  line-height: 1.3;
  border-radius: 5px;
  padding: 1px 7px;
  white-space: nowrap;
}

.graph-node__badge--hub {
  color: var(--color-blue);
  background: rgba(2, 81, 175, 0.08);
  border: 1px solid rgba(2, 81, 175, 0.18);
}

.graph-node__badge--mls {
  color: var(--color-blue);
  background: rgba(2, 81, 175, 0.08);
  border: 1px solid rgba(2, 81, 175, 0.18);
}

.node-rect.router.route-active ~ foreignObject .graph-node__icon--slim {
  background: rgba(255, 255, 255, 0.18);
}

.node-rect.router.route-active ~ foreignObject .graph-node__icon--slim img,
.node-rect.router.node-rect--remote.route-active ~ foreignObject .graph-node__icon--slim img {
  filter: brightness(0) invert(1);
}

.node-rect.router.route-active ~ foreignObject .graph-node__badge--hub,
.node-rect.router.node-rect--remote.route-active ~ foreignObject .graph-node__badge--hub {
  color: #fff;
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.28);
}

[data-theme="dark"] .graph-node__icon--operator,
[data-theme="dark"] .graph-node__icon--mcp {
  background: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .graph-node__icon--slim {
  background: rgba(79, 121, 246, 0.2);
}

[data-theme="dark"] .graph-node__icon--claude,
[data-theme="dark"] .graph-node__icon--langchain,
[data-theme="dark"] .graph-node__icon--crewai,
[data-theme="dark"] .graph-node__icon--langgraph,
[data-theme="dark"] .graph-node__icon--opencode {
  background: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .graph-node__icon--operator img,
[data-theme="dark"] .graph-node__icon--mcp img,
[data-theme="dark"] .graph-node__icon--langchain img,
[data-theme="dark"] .graph-node__icon--langgraph img,
[data-theme="dark"] .graph-node__icon--crewai img,
[data-theme="dark"] .graph-node__icon--opencode img {
  filter: brightness(0) invert(1) opacity(0.9);
}

[data-theme="dark"] .graph-node__icon--claude img {
  filter: brightness(1.1);
}

[data-theme="dark"] .graph-node__badge--hub,
[data-theme="dark"] .graph-node__badge--mls {
  background: rgba(79, 121, 246, 0.2);
  border-color: rgba(79, 121, 246, 0.35);
  color: #8eb4ff;
}

/* Session layer outer shield */
.shield-outer {
  fill: none;
  stroke: var(--color-teal);
  stroke-width: 1.5;
  stroke-dasharray: 4 3;
  rx: 16px;
  ry: 16px;
  opacity: 0.2;
  transition: all 0.3s ease;
}

.shield-outer.active {
  opacity: 0.9;
  stroke-dasharray: none;
  filter: drop-shadow(0 0 6px var(--color-teal));
}

/* Path connections */
.connection-path {
  fill: none;
  stroke: var(--color-path-idle);
  stroke-width: 2.5;
  transition: stroke 0.2s ease, filter 0.2s ease;
}

.connection-path.route-active {
  stroke: var(--color-blue);
  stroke-width: 1.6;
  opacity: 1;
}

.connection-path.active {
  stroke: var(--color-blue);
  filter: drop-shadow(0 0 3px var(--color-blue));
}

.connection-path.active-crypto {
  stroke: var(--color-teal);
  filter: drop-shadow(0 0 3px var(--color-teal));
}

.connection-path.active-rpc {
  stroke: var(--color-purple);
  filter: drop-shadow(0 0 3px var(--color-purple));
}

.connection-path.active-control {
  stroke: var(--color-blue);
  stroke-dasharray: 5 3;
  filter: drop-shadow(0 0 3px var(--color-blue));
}

.connection-path.control {
  stroke-dasharray: 4 4;
}

/* Node flash classes */
.flash-blue { fill: rgba(2, 81, 175, 0.14) !important; }
.flash-amber { fill: rgba(251, 175, 69, 0.18) !important; }
.flash-orange { fill: rgba(251, 146, 60, 0.18) !important; }
.flash-teal { fill: rgba(2, 120, 100, 0.14) !important; }
.flash-purple { fill: rgba(2, 81, 175, 0.14) !important; }
.flash-pink { fill: rgba(2, 81, 175, 0.14) !important; }
.flash-green { fill: rgba(16, 120, 90, 0.18) !important; }

[data-theme="dark"] .flash-blue { fill: rgba(77, 143, 212, 0.2) !important; }
[data-theme="dark"] .flash-amber { fill: rgba(240, 168, 48, 0.2) !important; }
[data-theme="dark"] .flash-orange { fill: rgba(251, 146, 60, 0.2) !important; }
[data-theme="dark"] .flash-teal { fill: rgba(45, 212, 191, 0.2) !important; }
[data-theme="dark"] .flash-purple { fill: rgba(167, 139, 250, 0.2) !important; }
[data-theme="dark"] .flash-pink { fill: rgba(236, 72, 153, 0.2) !important; }
[data-theme="dark"] .flash-green { fill: rgba(16, 185, 129, 0.25) !important; }

/* SVG filters */
.glow-filter {
  filter: drop-shadow(0 0 10px rgba(77, 143, 212, 0.4));
}

/* Interactive 2D Tooltip */
.tooltip-2d {
  position: fixed;
  background: var(--bg-panel);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 12px;
  pointer-events: none;
  z-index: 9999;
  width: 260px;
  box-shadow: var(--shadow-panel);
  font-size: 0.8rem;
  line-height: 1.4;
  animation: fadeIn 0.15s ease-out;
}

.tooltip-2d[hidden] {
  display: none !important;
}

.tooltip-title {
  font-family: var(--font-title);
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--color-blue);
  display: flex;
  align-items: center;
  gap: 6px;
}

.tooltip-desc {
  color: var(--color-text-secondary);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Legacy SVG icon rules removed — see .graph-node__icon */