/* Side-gutter decorations. Hidden unless both gutters are at least 200px wide. */

.wm-rail,
.wm-robot,
.wm-arm,
.wm-caption {
  display: none;
}

@media (min-width: 1200px) {
  .wm-rail {
    display: flex;
    flex-direction: column;
    gap: 22px;
    position: fixed;
    /* sits just above the shared floor line (64px from the bottom, see FLOOR_PX in
       embodied.js) so the arm can stand on the floor and still reach every waypoint */
    bottom: 136px;
    right: calc(50% + 400px + 36px);
    z-index: 1;
  }

  /* trajectory drawn behind the waypoints */
  .wm-path {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: visible;
    z-index: -1;
    pointer-events: none;
  }

  .wm-planned,
  .wm-executed,
  .wm-measure,
  .wm-branch {
    fill: none;
  }

  .wm-planned {
    stroke: rgba(23, 114, 208, 0.35);
    stroke-width: 1.2;
    stroke-dasharray: 2 5;
    stroke-linecap: round;
    animation: wm-flow 1.6s linear infinite;
  }

  .wm-executed {
    stroke: #1772d0;
    stroke-width: 1.6;
    stroke-linecap: round;
  }

  .wm-measure {
    stroke: none;
  }

  /* sampled rollouts fanning out ahead of the agent */
  .wm-branch {
    stroke: rgba(240, 146, 40, 0.45);
    stroke-width: 1;
    stroke-dasharray: 1.5 2.5;
    stroke-linecap: round;
  }

  .wm-branch-tip {
    fill: rgba(240, 146, 40, 0.6);
  }

  .wm-agent {
    fill: #f09228;
    stroke: rgba(240, 146, 40, 0.25);
    stroke-width: 6;
    opacity: 0;
    transition: opacity .3s ease-in-out;
  }

  /* dot first, label after: the arm reaches the dots from the left without crossing text */
  .wm-waypoint {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 13px;
    padding: 0;
    border: 0;
    background: none;
    cursor: pointer;
    font-family: 'Lato', Verdana, Helvetica, sans-serif;
    font-size: 13px;
    color: #9aa3ad;
    transition: color .2s ease-in-out;
  }

  .wm-waypoint:hover,
  .wm-waypoint:focus-visible,
  .wm-waypoint.is-active {
    color: #1772d0;
  }

  .wm-waypoint:focus-visible {
    outline: 2px solid #1772d0;
    outline-offset: 3px;
  }

  .wm-dot {
    position: relative;
    width: 7px;
    height: 7px;
    margin-left: 1px;
    border: 1.5px solid #9aa3ad;
    border-radius: 50%;
    background: #fff;
    transition: border-color .2s ease-in-out, background .2s ease-in-out;
  }

  .wm-waypoint.is-passed .wm-dot {
    border-color: #1772d0;
    background: rgba(23, 114, 208, 0.35);
  }

  .wm-waypoint.is-active .wm-dot,
  .wm-waypoint:hover .wm-dot {
    border-color: #1772d0;
    background: #1772d0;
  }

  .wm-robot {
    display: block;
    position: fixed;
    top: 0;
    left: calc(50% + 400px);
    z-index: 0;
    cursor: grab;
    touch-action: pan-y;
    -webkit-user-select: none;
    user-select: none;
  }

  .wm-arm {
    position: fixed;
    top: 0;
    z-index: 0;
    pointer-events: none;
  }

  /* status line under the robot: "imagining 3 futures…", "acting: wave", hints */
  .wm-caption {
    display: block;
    position: fixed;
    left: calc(50% + 400px);
    right: 0;
    top: 80%;
    text-align: center;
    font-family: ui-monospace, SFMono-Regular, Consolas, 'Liberation Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.02em;
    color: #8a939d;
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease-in-out;
  }

  .wm-caption.is-visible {
    opacity: 1;
  }
}

@keyframes wm-flow {
  to {
    stroke-dashoffset: -7;
  }
}

@media (prefers-reduced-motion: reduce) {
  .wm-waypoint,
  .wm-dot,
  .wm-agent,
  .wm-caption {
    transition: none;
  }

  .wm-planned {
    animation: none;
  }
}

@media (min-width: 1360px) {
  .wm-arm {
    display: block;
  }
}