/* Shared chrome for /tags/constellation, /tags/vectorfield, /tags/chaos-attractor
   Tokens from STYLE_GUIDE.md; glitch/scanlines stay on canvas only. */
:root {
  --tags-vis-bg: #09090b;
  --tags-vis-surface: #18181b;
  --tags-vis-border: #27272a;
  --tags-vis-text: #fafafa;
  --tags-vis-muted: #a1a1aa;
  --tags-vis-accent: #22d3ee;
  --tags-vis-accent-hover: #67e8f9;
}

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

body.tags-vis-body {
  background: var(--tags-vis-bg);
  color: var(--tags-vis-text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  overflow: hidden;
  width: 100vw;
  height: 100vh;
}

.tags-vis-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 10px 16px;
  font-size: 12px;
  color: var(--tags-vis-muted);
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  pointer-events: none;
  background: linear-gradient(to bottom, rgba(9, 9, 11, 0.92), transparent);
}

.tags-vis-nav a {
  color: var(--tags-vis-muted);
  text-decoration: none;
  margin-right: 10px;
  pointer-events: auto;
  border-bottom: 1px solid transparent;
}

.tags-vis-nav a:hover {
  color: var(--tags-vis-accent-hover);
  border-bottom-color: var(--tags-vis-accent);
}

.tags-vis-nav .tags-vis-title {
  color: var(--tags-vis-text);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-right: 12px;
}

.tags-vis-toolbar {
  position: fixed;
  top: 44px;
  right: 12px;
  z-index: 21;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  pointer-events: none;
}

.tags-vis-toolbar > * {
  pointer-events: auto;
}

.tags-vis-btn {
  appearance: none;
  border: 1px solid var(--tags-vis-border);
  background: transparent;
  color: var(--tags-vis-accent);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  transition: border-color 0.15s, color 0.15s;
}

.tags-vis-btn:hover {
  border-color: var(--tags-vis-accent);
  color: var(--tags-vis-accent-hover);
}

.tags-vis-status {
  font-size: 11px;
  color: var(--tags-vis-muted);
  font-family: ui-monospace, monospace;
  max-width: 42vw;
  text-align: right;
}

.tags-vis-density-label {
  font-size: 11px;
  color: var(--tags-vis-muted);
  font-family: ui-monospace, monospace;
}

.tags-vis-select {
  appearance: none;
  border: 1px solid var(--tags-vis-border);
  background: var(--tags-vis-surface);
  color: var(--tags-vis-accent);
  font-size: 11px;
  font-weight: 600;
  padding: 5px 8px;
  border-radius: 8px;
  cursor: pointer;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}

.tags-vis-select:hover {
  border-color: var(--tags-vis-accent);
}

.tags-vis-canvas-host {
  position: fixed;
  inset: 0;
  z-index: 0;
}

/* Vector field: anchor handles at field influence centers + labels */
.vf-anchors-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.vf-anchors-layer.is-hidden {
  visibility: hidden;
}

.vf-anchor-item {
  position: absolute;
  transform: translate(-50%, -50%);
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  min-width: 12px;
  min-height: 12px;
}

.vf-anchor-line {
  position: absolute;
  left: 6px;
  top: 6px;
  width: var(--vf-anchor-line-length, 28px);
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.1), rgba(255, 48, 48, 0.95));
  transform-origin: left center;
  transform: translateY(-50%) rotate(var(--vf-anchor-line-angle, 0deg));
  box-shadow: 0 0 12px rgba(255, 48, 48, 0.18);
  pointer-events: none;
}

.vf-anchor-line::after {
  content: "";
  position: absolute;
  right: -1px;
  top: 50%;
  width: 7px;
  height: 7px;
  border-top: 2px solid rgba(255, 72, 72, 0.95);
  border-right: 2px solid rgba(255, 72, 72, 0.95);
  transform: translateY(-50%) rotate(45deg);
}

.vf-anchor-handle {
  position: relative;
  z-index: 1;
  pointer-events: auto;
  width: 12px;
  height: 12px;
  min-width: 12px;
  min-height: 12px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--tags-vis-accent);
  background: rgba(34, 211, 238, 0.45);
  box-shadow: 0 0 10px rgba(34, 211, 238, 0.35);
  cursor: grab;
  flex-shrink: 0;
}

.vf-anchor-handle:hover {
  background: rgba(34, 211, 238, 0.65);
}

.vf-anchor-handle:active {
  cursor: grabbing;
}

.vf-anchor-label {
  position: relative;
  z-index: 1;
  font-size: 10px;
  line-height: 1.25;
  color: var(--tags-vis-accent);
  opacity: 0.92;
  text-shadow:
    0 0 8px var(--tags-vis-bg),
    0 0 2px var(--tags-vis-bg),
    0 1px 2px rgba(0, 0, 0, 0.9);
  white-space: nowrap;
  max-width: min(200px, 32vw);
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  text-align: center;
  margin-top: 10px;
}

.tags-vis-canvas-host canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.tags-vis-scanlines {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.12) 2px,
    rgba(0, 0, 0, 0.12) 3px
  );
  opacity: 0.35;
}

.tags-vis-hint {
  position: fixed;
  bottom: 10px;
  left: 12px;
  font-size: 10px;
  color: var(--tags-vis-muted);
  z-index: 10;
  opacity: 0.75;
  max-width: 90vw;
}

.tags-vis-banner {
  position: fixed;
  top: 88px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 16px;
  background: var(--tags-vis-surface);
  border: 1px solid #7f1d1d;
  color: #fca5a5;
  font-size: 12px;
  z-index: 30;
  max-width: 90%;
  text-align: center;
  display: none;
}

.tags-vis-banner.visible {
  display: block;
}