/* Signal's lobes' layer, the drawings: the reach grammar, inked by classes alone, since a tree writes no style
   (SCREEN-2). */

/* The drawings: the reach grammar, inked by classes, its motion on one clock. By night the filaments glow;
   by day they are ink and nothing glows. Each scene is drawn wide and upright, and its room shows the one it fits. */
.signal-scene {
  container-type: inline-size;
  width: 100%;
  margin: 0;
}
.signal-drawing {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}
.signal-upright {
  display: none;
}
@container (max-width: 30rem) {
  .signal-wide {
    display: none;
  }
  .signal-upright {
    display: block;
    max-width: 24rem;
    margin-inline: auto;
  }
}
.signal-t-name {
  fill: var(--signal-text);
  font-family: var(--signal-font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.signal-t-place {
  fill: var(--signal-muted);
  font-family: var(--signal-font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
}
.signal-t-say {
  fill: var(--signal-body);
  font-family: var(--signal-font);
  font-size: 14.5px;
  font-weight: 500;
}
.signal-t-tag {
  fill: var(--signal-text);
  font-family: var(--signal-font-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.signal-filament {
  fill: none;
  stroke: var(--signal-filament);
  stroke-width: 2;
  stroke-linecap: round;
}
.signal-pulse {
  fill: none;
  stroke: var(--signal-accent);
  stroke-width: 3.2;
  stroke-linecap: round;
  stroke-dasharray: 10 1000;
  filter: drop-shadow(0 0 5px var(--signal-glow));
  animation: signal-travel var(--signal-pulse-duration) linear infinite;
}
@keyframes signal-travel {
  from {
    stroke-dashoffset: 10;
  }
  to {
    stroke-dashoffset: -1000;
  }
}
.signal-beat-1 {
  animation-delay: -0.55s;
}
.signal-beat-2 {
  animation-delay: -1.1s;
}
.signal-beat-3 {
  animation-delay: -1.7s;
}
.signal-beat-4 {
  animation-delay: -2.2s;
}
.signal-beat-5 {
  animation-delay: -2.75s;
}
.signal-later {
  fill: none;
  stroke: var(--signal-accent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 2 8;
}
.signal-halo {
  fill: var(--signal-glow);
  opacity: 0.32;
  filter: blur(22px);
}
.signal-plate {
  fill: var(--signal-raised);
  stroke: var(--signal-accent);
  stroke-width: 1.6;
  filter: drop-shadow(0 10px 22px rgba(15, 17, 21, 0.1));
}
.signal-plate-later {
  fill: var(--signal-surface);
  stroke: var(--signal-subtle);
  stroke-width: 1.6;
  stroke-dasharray: 3 6;
  stroke-linecap: round;
}
.signal-ghost .signal-t-name {
  fill: var(--signal-muted);
}
.signal-tip-disc {
  fill: var(--signal-raised);
  stroke: var(--signal-line-strong);
  stroke-width: 1.2;
}
.signal-person {
  fill: var(--signal-body);
}
.signal-stranger {
  fill: var(--signal-subtle);
}
.signal-lobe-plate {
  fill: var(--signal-raised);
  stroke: var(--signal-line-strong);
  stroke-width: 1.2;
}
.signal-cell {
  fill: var(--signal-accent);
  opacity: 0.35;
  animation: signal-write calc(var(--signal-pulse-duration) * 1.25) ease-in-out infinite;
}
@keyframes signal-write {
  0%,
  70%,
  100% {
    opacity: 0.3;
  }
  80% {
    opacity: 1;
  }
}
.signal-edge-line {
  fill: none;
  stroke: var(--signal-line-strong);
  stroke-width: 1.5;
  stroke-dasharray: 2 7;
  stroke-linecap: round;
}
.signal-edge-name {
  fill: var(--signal-muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.signal-ring {
  fill: none;
  stroke: var(--signal-text);
  stroke-width: 1.6;
  opacity: 0.45;
}
.signal-refused {
  fill: none;
  stroke: var(--signal-subtle);
  stroke-width: 2;
  stroke-dasharray: 3 7;
  stroke-linecap: round;
}
.signal-stop {
  fill: var(--signal-danger);
}
.signal-chip-plate {
  fill: var(--signal-accent);
  filter: drop-shadow(0 0 10px var(--signal-glow));
}
.signal-chip-word {
  fill: var(--signal-on-accent);
}
.signal-travels-wide {
  animation: signal-cross-wide 7s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}
.signal-travels-upright {
  animation: signal-cross-upright 7s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}
@keyframes signal-cross-wide {
  0% {
    transform: translate(140px, 0);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  40%,
  88% {
    transform: translate(0, 0);
    opacity: 1;
  }
  100% {
    transform: translate(0, 0);
    opacity: 0;
  }
}
@keyframes signal-cross-upright {
  0% {
    transform: translate(0, -145px);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  40%,
  88% {
    transform: translate(0, 0);
    opacity: 1;
  }
  100% {
    transform: translate(0, 0);
    opacity: 0;
  }
}
/* A bench: a ground of dots under the drawing, for what is still being built. */
.signal-bench {
  border: 1px dashed var(--signal-line-strong);
  border-radius: 20px;
  background-image: radial-gradient(var(--signal-line-strong) 1px, transparent 1.5px);
  background-size: 18px 18px;
}

@media (prefers-reduced-motion: reduce) {
  .signal-pulse {
    display: none;
  }
  .signal-cell,
  .signal-core,
  .signal-travels-wide,
  .signal-travels-upright {
    animation: none;
    opacity: 1;
  }
}