body {
  --attention: #3fb950;
}
#response-field {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(
    ellipse at 24% 45%,
    color-mix(in srgb, var(--attention) 10%, transparent),
    transparent 62%
  );
  opacity: 0;
  transition: opacity 0.6s;
}
body[data-attentive='true'] #response-field {
  opacity: 1;
}
.viewport {
  z-index: 1;
  background: transparent;
}
.reader {
  border-left-color: color-mix(in srgb, var(--attention) 35%, var(--line));
}
.reader:before {
  background: linear-gradient(
    90deg,
    transparent,
    color-mix(in srgb, var(--attention) 8%, transparent)
  );
}
.path-entry {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 20px auto 8px;
  max-width: 670px;
}
.path-entry button,
.reader-response button,
.path-settings button {
  font: 13px/1.5 var(--mono);
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 10px 14px;
  border-radius: 6px;
  min-height: 44px;
}
.path-entry #begin-thread {
  border-color: #3fb95065;
  color: #a7dfb0;
}
.path-entry button:hover,
.reader-response button:hover {
  border-color: var(--attention);
}
.reader-response {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  font: 12px/1.5 var(--mono);
  color: var(--dim);
}
.reader-response button {
  padding: 4px 10px;
  flex-shrink: 0;
}
.event-node.has-trace {
  outline: 1px solid var(--attention);
  outline-offset: 4px;
}
.event.has-trace .read:after {
  content: ' · opened';
  color: var(--dim);
}
.event.has-source .read:after {
  content: ' · source explored';
  color: var(--dim);
}
.source-button.source-opened:after {
  content: ' ◇ opened';
  color: #b6dec2;
}
.connection-arrival {
  animation: arrive-line 900ms ease-out 1;
}
@keyframes arrive-line {
  0% {
    stroke-width: 5;
    opacity: 1;
  }
  100% {
    stroke-width: 2;
    opacity: 0.75;
  }
}
#path-dialog {
  width: min(760px, calc(100vw - 24px));
  max-width: none;
  max-height: calc(100dvh - 24px);
  padding: 24px;
  overflow: auto;
}
#path-dialog h2 {
  font-size: 24px;
  line-height: 1.3;
  margin: 0;
}
#path-summary,
.path-legend {
  font-size: 14px;
  color: var(--dim);
}
#path-map {
  width: 100%;
  height: auto;
  display: block;
  background: radial-gradient(ellipse at center, #23312b55, transparent 70%);
  border-block: 1px solid var(--line);
}
#path-list {
  padding-left: 28px;
}
#path-list li {
  padding: 8px 0;
  color: var(--dim);
}
#path-list button {
  border: 0;
  background: none;
  text-align: left;
  color: var(--ink);
  padding: 8px;
  min-height: 44px;
}
.trace-label {
  display: block;
  color: #a7dfb0;
  font: 12px var(--mono);
  padding: 0 8px;
}
.path-settings {
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
.path-settings label {
  display: flex;
  gap: 12px;
  align-items: center;
  min-height: 44px;
}
.path-settings p {
  font-size: 13px;
  color: var(--dim);
}
.path-settings input {
  width: 20px;
  height: 20px;
  accent-color: var(--green);
}
.no-script {
  position: fixed;
  inset: 40% 20px auto;
  z-index: 30;
  background: var(--base);
  padding: 20px;
}
.no-script a {
  color: var(--green);
}
@media (max-width: 700px) {
  .path-entry {
    margin: 12px auto;
  }
  .path-entry button {
    font-size: 12px;
    padding: 8px 10px;
  }
  .reader-response {
    font-size: 11px;
    margin-top: 4px;
  }
  .reader-response button {
    font-size: 11px;
  }
  .title-actions {
    gap: 5px;
  }
  #path-dialog {
    padding: 18px;
  }
  #path-dialog h2 {
    font-size: 20px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .connection-arrival {
    animation: none;
  }
  #response-field {
    transition: none;
  }
}
.response-still .connection-arrival {
  animation: none;
}
#atlas {
  width: min(1320px, calc(100vw - 24px));
  max-width: none;
  max-height: calc(100dvh - 24px);
  padding: 0;
  overflow: auto;
  background: radial-gradient(
    ellipse at 50% 45%,
    color-mix(in srgb, var(--attention, #76aabf) 9%, #0a0e12),
    #0a0e12 80%
  );
}
.atlas-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 32px 12px;
}
.atlas-heading h2 {
  font-size: 32px;
  margin: 0;
  line-height: 1.2;
}
.atlas-heading p:not(.eyebrow) {
  color: var(--dim);
  font-size: 13px;
  margin-bottom: 0;
}
.atlas-heading .close {
  flex-shrink: 0;
}
.atlas-field {
  position: relative;
  margin: 10px 32px 24px;
}
.atlas-field svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.atlas-field path {
  fill: none;
  stroke-width: 1;
  opacity: 0.15;
  transition:
    opacity 0.3s,
    stroke-width 0.3s;
}
.atlas-field .atlas-related {
  opacity: 0.95;
  stroke-width: 2;
}
#atlas-groups {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px 24px;
}
.atlas-group {
  position: relative;
  height: 128px;
  min-width: 0;
}
.atlas-group h3 {
  font: 12px/1.5 var(--mono);
  color: #a7b5c0;
  margin: 0;
  padding: 0 8px;
}
.atlas-node {
  position: absolute;
  left: var(--node-x);
  top: var(--node-y);
  width: 44px;
  height: 44px;
  border: 1px solid color-mix(in srgb, var(--tone) 55%, transparent);
  border-radius: 50%;
  background: #0e171b;
  color: var(--tone);
  font: 11px var(--mono);
  transform: translateX(-50%);
  transition:
    box-shadow 0.25s,
    border-color 0.25s;
  z-index: 1;
}
.atlas-connected {
  border-color: var(--tone);
  box-shadow: 0 0 24px color-mix(in srgb, var(--tone) 28%, transparent);
}
.atlas-name {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
}
.atlas-opened {
  outline: 1px solid var(--tone);
  outline-offset: 3px;
}
.atlas-source:after {
  content: '◇';
  position: absolute;
  top: -18px;
  left: 15px;
}
.atlas-caption {
  position: sticky;
  bottom: 0;
  background: #11161cf5;
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--line);
  padding: 16px 32px;
  z-index: 3;
  min-height: 100px;
}
.atlas-caption p {
  font-size: 15px;
  margin: 0;
  max-width: 900px;
}
.atlas-caption > span {
  font: 11px var(--mono);
  color: var(--dim);
}
@media (max-width: 899px) {
  #atlas-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .atlas-field svg {
    display: none;
  }
  .atlas-group {
    height: auto;
    border-top: 1px solid var(--line);
    padding-top: 14px;
  }
  .atlas-group h3 {
    margin-bottom: 12px;
  }
  .atlas-node {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    left: auto;
    top: auto;
    transform: none;
    width: 100%;
    height: auto;
    min-height: 44px;
    border-radius: 4px;
    padding: 8px 10px;
    text-align: left;
    margin-bottom: 10px;
  }
  .atlas-name {
    position: static;
    width: auto;
    height: auto;
    clip-path: none;
    margin: 0;
    overflow: visible;
    font: 12px/1.5 var(--sans);
  }
  .atlas-source:after {
    position: static;
  }
  .atlas-caption {
    display: none;
  }
  .atlas-heading h2 {
    font-size: 25px;
  }
  .atlas-field {
    margin-inline: 20px;
  }
  .atlas-heading {
    padding: 20px;
  }
  .atlas-heading p:not(.eyebrow):after {
    content: ' On narrow screens, the same moments form a reading index.';
  }
}
@media (max-width: 520px) {
  #atlas-groups {
    grid-template-columns: 1fr;
  }
}
/* Keep the timeline beside the reader legible instead of stacking faded labels. */
.event.behind-reader{visibility:hidden;opacity:0}
@media(min-width:1200px){.reading .intro{visibility:hidden}}

.response-still #response-field{transition:none}
@media(min-width:900px) and (max-width:1150px){#atlas-groups{grid-template-columns:repeat(3,minmax(0,1fr))}}