@font-face {
  font-family: "Fira Code Local";
  src: url("assets/fonts/fira-code-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
}

:root {
  --carbon: #070809;
  --panel: #101216;
  --panel-2: #171a1f;
  --paper: #e9e7df;
  --muted: #8c929b;
  --line: rgba(233, 231, 223, 0.16);
  --line-hot: rgba(216, 255, 62, 0.78);
  --signal: #d8ff3e;
  --blue: #2c5e98;
  --toolbar: 54px;
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--carbon);
  color: var(--paper);
  font-family: "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  letter-spacing: 0;
}

button,
a {
  color: inherit;
  font: inherit;
}

button:focus-visible,
a:focus-visible,
.evidence-node:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.evidence-room {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.room-toolbar {
  position: absolute;
  z-index: 100;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: var(--toolbar);
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 8, 9, 0.94);
  backdrop-filter: blur(16px);
  font-family: "Fira Code Local", monospace;
}

.room-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  width: max-content;
  color: var(--paper);
  text-decoration: none;
}

.room-brand > span {
  color: var(--signal);
}

.room-brand strong {
  font-size: 11px;
}

.room-brand small {
  color: var(--muted);
  font-size: 8px;
}

.room-mode {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 8px;
}

.room-mode i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 12px rgba(216, 255, 62, 0.5);
}

.room-help {
  justify-self: end;
  padding: 8px 0;
  border: 0;
  border-bottom: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  font-size: 9px;
  cursor: pointer;
}

.room-help:hover,
.room-help[aria-pressed="true"] {
  border-color: var(--signal);
  color: var(--signal);
}

.room-help-panel {
  position: absolute;
  z-index: 90;
  top: calc(var(--toolbar) + 14px);
  right: 18px;
  display: grid;
  gap: 10px;
  width: 230px;
  padding: 18px;
  border: 1px solid var(--line);
  background: rgba(16, 18, 22, 0.95);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.42);
  color: var(--muted);
  font-family: "Fira Code Local", monospace;
  font-size: 8px;
}

.room-help-panel[hidden] {
  display: none;
}

.room-help-panel span::before {
  margin-right: 8px;
  color: var(--signal);
  content: "—";
}

.room-viewport {
  position: absolute;
  inset: var(--toolbar) 0 0;
  overflow: hidden;
  cursor: grab;
  touch-action: none;
  user-select: none;
}

.room-viewport.is-panning,
.room-viewport.is-dragging {
  cursor: grabbing;
}

.room-grid {
  position: absolute;
  inset: 0;
  opacity: 0.44;
  background-size: 38px 38px;
  background-image:
    linear-gradient(rgba(233, 231, 223, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(233, 231, 223, 0.055) 1px, transparent 1px);
  transform-origin: 0 0;
  pointer-events: none;
}

.room-world {
  position: absolute;
  top: 0;
  left: 0;
  width: 2600px;
  height: 1800px;
  transform-origin: 0 0;
  will-change: transform;
}

.connection-layer,
.node-layer {
  position: absolute;
  inset: 0;
  width: 2600px;
  height: 1800px;
}

.connection-line {
  fill: none;
  stroke: rgba(233, 231, 223, 0.1);
  stroke-width: 1.5;
  vector-effect: non-scaling-stroke;
  transition: stroke 180ms ease, opacity 180ms ease;
}

.connection-line.is-related {
  stroke: var(--line-hot);
  stroke-width: 2;
}

.connection-line.is-muted {
  opacity: 0.08;
}

.evidence-node {
  position: absolute;
  width: 300px;
  min-height: 194px;
  padding: 22px;
  border: 1px solid rgba(233, 231, 223, 0.22);
  background: rgba(16, 18, 22, 0.96);
  color: var(--paper);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.24);
  cursor: grab;
  contain: layout paint style;
  transform: translate3d(0, 0, 0);
  transition: border-color 180ms ease, background 180ms ease, box-shadow 180ms ease, opacity 180ms ease;
}

.evidence-node:hover {
  border-color: rgba(216, 255, 62, 0.55);
}

.evidence-node.is-selected {
  z-index: 20;
  border-color: var(--signal);
  background: #161a14;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.48), 0 0 0 1px rgba(216, 255, 62, 0.2);
}

.evidence-node.is-muted {
  opacity: 0.32;
}

.evidence-node.is-dragging {
  z-index: 40;
  cursor: grabbing;
  transition: none;
}

.node-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 34px;
  color: var(--muted);
  font-family: "Fira Code Local", monospace;
  font-size: 8px;
}

.node-topline b {
  color: var(--signal);
  font-weight: 500;
}

.evidence-node h2 {
  margin: 0 0 14px;
  font-family: "Arial Narrow", "Aptos Display", Arial, sans-serif;
  font-size: 24px;
  line-height: 1.04;
}

.evidence-node p {
  margin: 0;
  color: #a7abb1;
  font-size: 11px;
  line-height: 1.65;
}

.node-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 26px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: "Fira Code Local", monospace;
  font-size: 7px;
}

.node-footer strong {
  color: var(--paper);
  font-size: 8px;
}

.evidence-node.type-portrait {
  width: 330px;
  height: 430px;
  padding: 0;
  overflow: hidden;
}

.type-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.12) brightness(0.78);
  pointer-events: none;
}

.portrait-label {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  justify-content: space-between;
  padding: 14px;
  background: rgba(7, 8, 9, 0.86);
  font-family: "Fira Code Local", monospace;
  font-size: 8px;
}

.evidence-node.type-cluster {
  border-color: rgba(44, 94, 152, 0.8);
  background: #102136;
}

.evidence-node.type-principle {
  border-color: rgba(216, 255, 62, 0.45);
}

.evidence-node.type-identity {
  width: 380px;
  min-height: 260px;
  background: var(--paper);
  color: var(--carbon);
}

.type-identity .node-topline,
.type-identity p,
.type-identity .node-footer {
  color: #545960;
}

.type-identity .node-footer {
  border-color: rgba(7, 8, 9, 0.2);
}

.type-identity .node-footer strong {
  color: var(--carbon);
}

.camera-reticle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(233, 231, 223, 0.12);
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
}

.camera-reticle::before,
.camera-reticle::after {
  position: absolute;
  background: rgba(233, 231, 223, 0.2);
  content: "";
}

.camera-reticle::before { top: 50%; left: -8px; right: -8px; height: 1px; }
.camera-reticle::after { left: 50%; top: -8px; bottom: -8px; width: 1px; }

.evidence-inspector {
  position: absolute;
  z-index: 80;
  top: calc(var(--toolbar) + 18px);
  right: 18px;
  bottom: 76px;
  width: min(390px, calc(100vw - 36px));
  padding: 30px;
  overflow-y: auto;
  border: 1px solid var(--line);
  background: rgba(16, 18, 22, 0.96);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(18px);
  transform: translateX(calc(100% + 30px));
  transition: transform 420ms cubic-bezier(0.16, 1, 0.3, 1);
}

.evidence-inspector.is-open {
  transform: translateX(0);
}

.inspector-close {
  position: absolute;
  top: 14px;
  right: 16px;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 23px;
  cursor: pointer;
}

.inspector-kicker {
  margin: 0 0 34px;
  color: var(--signal);
  font-family: "Fira Code Local", monospace;
  font-size: 8px;
}

.evidence-inspector h2 {
  margin: 0 0 20px;
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: 32px;
  line-height: 1.06;
}

.inspector-summary {
  margin: 0 0 26px;
  color: #b7bbc0;
  font-size: 13px;
  line-height: 1.75;
}

.inspector-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin-bottom: 28px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.inspector-stat {
  padding: 14px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.inspector-stat strong,
.inspector-stat span {
  display: block;
}

.inspector-stat strong {
  color: var(--signal);
  font-family: "Fira Code Local", monospace;
  font-size: 17px;
}

.inspector-stat span {
  margin-top: 6px;
  color: var(--muted);
  font-family: "Fira Code Local", monospace;
  font-size: 7px;
}

.inspector-list {
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
}

.inspector-list li {
  padding: 12px 0;
  border-top: 1px solid var(--line);
  color: #b7bbc0;
  font-size: 11px;
  line-height: 1.55;
}

.inspector-list li::before {
  margin-right: 9px;
  color: var(--signal);
  content: "—";
}

.inspector-link {
  display: flex;
  justify-content: space-between;
  padding: 14px 0;
  border-top: 1px solid var(--signal);
  color: var(--signal);
  font-family: "Fira Code Local", monospace;
  font-size: 9px;
  text-decoration: none;
}

.room-hud {
  position: absolute;
  z-index: 70;
  right: 18px;
  bottom: 18px;
  left: 18px;
  display: flex;
  align-items: flex-end;
  gap: 34px;
  pointer-events: none;
  font-family: "Fira Code Local", monospace;
}

.hud-position,
.hud-count {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 7px;
}

.hud-position output,
.hud-count output {
  color: var(--paper);
  font-size: 9px;
}

.zoom-controls {
  display: grid;
  grid-template-columns: 38px 70px 38px;
  height: 38px;
  margin-left: auto;
  border: 1px solid var(--line);
  background: rgba(7, 8, 9, 0.9);
  pointer-events: auto;
}

.zoom-controls button {
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--paper);
  cursor: pointer;
}

.zoom-controls button:last-child { border-right: 0; }
.zoom-controls button:hover { background: var(--signal); color: var(--carbon); }
#zoomOutput { font-size: 8px; }

@media (max-width: 760px) {
  .room-toolbar { grid-template-columns: 1fr auto; padding: 0 12px; }
  .room-mode { display: none; }
  .room-brand small { display: none; }
  .evidence-inspector {
    top: auto;
    right: 8px;
    bottom: 66px;
    left: 8px;
    width: auto;
    max-height: 56vh;
    transform: translateY(calc(100% + 80px));
  }
  .evidence-inspector.is-open { transform: translateY(0); }
  .room-hud { right: 8px; bottom: 8px; left: 8px; gap: 16px; }
  .hud-position { display: none; }
  .zoom-controls { grid-template-columns: 36px 64px 36px; }
  .room-help-panel { right: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}