.project-dateline {
  font-size: 11px;
  color: #6a7b60;
  margin: 0 0 22px;
}
.intro h1 {
  font-size: clamp(54px, 6vw, 86px);
}
.intro {
  position: relative;
}
.page-qr {
  display: flex;
  align-items: center;
  gap: 14px;
  width: max-content;
  max-width: 100%;
  margin: 24px auto 0;
  padding: 10px 16px 10px 10px;
  border: 1px solid #d8d8c8;
  border-radius: 8px;
  background: #f7f2e6;
  text-align: left;
}
.page-qr img {
  display: block;
  width: 128px;
  height: 128px;
  flex-shrink: 0;
}
.page-qr strong,
.page-qr small {
  display: block;
  max-width: 105px;
  line-height: 1.5;
}
.page-qr strong {
  font-size: 13px;
  font-weight: 500;
}
.page-qr small {
  margin-top: 4px;
  font-size: 11px;
  color: #798078;
}
@media (min-width: 1400px) {
  .page-qr {
    position: absolute;
    top: 58px;
    right: max(38px, calc((100vw - 1320px) / 2 + 38px));
    flex-direction: column;
    gap: 8px;
    margin: 0;
    padding: 12px;
    text-align: center;
  }
  .page-qr strong,
  .page-qr small {
    max-width: 128px;
  }
}
.chapter-nav a:hover {
  color: #719850;
}
.overview-prose {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 55px;
  font-size: 15px;
  line-height: 1.85;
  color: #606e58;
}
.dependency-words {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 30px;
  border-block: 1px solid var(--line);
}
.dependency-words > div {
  padding: 25px 20px;
  border-right: 1px solid var(--line);
}
.dependency-words > div:first-child {
  padding-left: 0;
}
.dependency-words > div:last-child {
  border: 0;
}
.dependency-words strong {
  font-family: var(--serif);
  font-size: 35px;
  font-weight: 400;
  color: #48653b;
  display: block;
}
.dependency-words span {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: #76816d;
  line-height: 1.6;
}
.annotation {
  font-size: 11px;
  line-height: 1.8;
  color: #78846d;
  margin: 18px 0 0;
}
.architecture {
  background: #f0f3eb;
  border: 1px solid #dce3d2;
  border-radius: 8px;
  padding: 30px;
}
.architecture-goal {
  text-align: center;
  font-size: 11px;
  color: #6b7e5b;
  margin: 0 auto 20px;
}
.architecture-goal span {
  font-family: var(--serif);
  font-size: 27px;
  display: block;
  color: var(--green);
  margin-top: 9px;
}
.architecture-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
  position: relative;
  max-width: 800px;
  margin: auto;
}
.architecture-flow:before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: #9bac8a;
}
.arch-node,
.arch-hardware {
  position: relative;
  z-index: 1;
  border: 1px solid #d1dbc5;
  background: #fbfcf8;
  border-radius: 5px;
  padding: 17px 25px;
  width: 100%;
  max-width: 470px;
  text-align: left;
  color: var(--green);
  transition:
    border-color 0.15s,
    background 0.15s;
}
.arch-node:hover,
.arch-node.selected {
  border-color: #66834f;
  background: #e3ecd6;
}
.arch-node span,
.arch-node small {
  display: block;
  font-size: 10px;
  color: #78856d;
}
.arch-node strong {
  font-size: 15px;
  font-weight: 500;
  display: block;
  margin: 7px 0;
}
.arch-branches {
  display: flex;
  width: 100%;
  gap: 30px;
}
.arch-hardware {
  text-align: center;
  background: #243f2b;
  color: white;
  font-size: 14px;
}
.arch-hardware span {
  display: block;
  color: #c1d1b2;
  font-size: 10px;
  margin-top: 9px;
}
.arch-detail {
  border-top: 1px solid #d3ddc8;
  margin: 25px 0 0;
  padding-top: 20px;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  min-height: 90px;
}
.arch-detail > span {
  font-size: 13px;
  color: #456035;
}
.arch-detail p {
  font-size: 12px;
  line-height: 1.8;
  color: #6c7b60;
  margin: 0;
}
.figure-detail {
  border-block: 1px solid var(--line);
  margin-top: 25px;
  font-size: 12px;
}
.figure-detail summary {
  padding: 19px 0;
  cursor: pointer;
}
.figure-detail summary span {
  float: right;
  font-size: 10px;
  color: #829473;
}
.figure-detail img {
  width: 100%;
  display: block;
}
.figure-detail p {
  font-size: 11px;
  line-height: 1.8;
  color: #74836a;
}
.task-explorer {
  border: 1px solid var(--line);
  background: white;
  border-radius: 8px;
  padding: 30px;
}
.task-topline {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  gap: 20px;
  color: #748369;
}
.task-topline label {
  display: flex;
  align-items: center;
  gap: 6px;
}
.task-topline input {
  accent-color: #618449;
}
.task-explorer > input[type="range"] {
  width: 100%;
  accent-color: #65864b;
}
.arm-lanes {
  margin-top: 26px;
}
.arm-lanes > div {
  position: relative;
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 12px;
  padding: 20px 0 25px;
  font-size: 12px;
  border-bottom: 1px solid #e6ebdf;
}
.arm-lanes span {
  color: #7d8973;
}
.arm-lanes strong {
  font-weight: 500;
}
.arm-lanes i {
  height: 3px;
  position: absolute;
  left: 0;
  bottom: 0;
  background: #a2bb80;
  transition: width 0.4s;
}
.predicate-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 25px;
}
.predicate-row span {
  font-family: monospace;
  font-size: 10px;
  background: #f1f4ec;
  padding: 8px 10px;
  border: 1px solid #e0e6d7;
  color: #6a7f59;
}
.task-explorer > p:not(.annotation) {
  font-size: 13px;
  line-height: 1.8;
  color: #526649;
  min-height: 47px;
}
.task-explorer.interrupted {
  border-color: #b6947a;
}
.task-explorer.interrupted .predicate-row span:last-child {
  background: #f7eadd;
  color: #8c6247;
}
.comparison-heading,
.comparison-heading h3,
.gallery-heading h3 {
  font-size: 25px;
  font-weight: 450;
  margin: 0 0 10px;
}
.comparison-heading p {
  font-size: 12px;
  color: #7a8671;
  margin-bottom: 22px;
}
.checkpoint-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.checkpoint-comparison > div {
  min-width: 0;
}
.checkpoint-comparison video {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: contain;
  background: #15221a;
  display: block;
}
.media-tag {
  font-size: 10px;
  padding: 13px 16px;
  background: #e8ece2;
  display: block;
}
.media-tag.adapted {
  background: #dce9cc;
  color: #3b5a2e;
}
.checkpoint-comparison p {
  font-size: 11px;
  color: #7a8671;
}
.checkpoint-comparison strong {
  font-weight: 500;
  color: #3f5d30;
}
.comparison-controls {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 10px;
}
.comparison-controls input {
  flex: 1;
  accent-color: #618449;
  min-width: 30px;
}
.comparison-controls span {
  font-size: 10px;
  color: #7c8873;
}
.gallery-stage {
  display: grid;
  grid-template-columns: 65% 35%;
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: 7px;
  overflow: hidden;
  background: #f0f3eb;
}
.gallery-stage video {
  width: 100%;
  height: 100%;
  min-height: 300px;
  max-height: 435px;
  object-fit: contain;
  background: #16251b;
}
.gallery-stage > div {
  padding: 30px;
  display: flex;
  flex-direction: column;
}
.gallery-stage > div > span {
  font-size: 10px;
  color: #76905f;
}
.gallery-stage h3 {
  font-size: 27px;
  font-weight: 450;
  line-height: 1.2;
  margin: 20px 0 10px;
}
.gallery-stage p {
  font-size: 12px;
  line-height: 1.8;
  color: #7d8a71;
}
.gallery-arrows {
  display: flex;
  gap: 18px;
  align-items: center;
  margin-top: auto;
  padding-top: 20px;
}
.gallery-arrows button {
  border: 1px solid #c9d5bc;
  width: 34px;
  height: 34px;
  background: #fbfcf8;
  color: #456337;
  border-radius: 50%;
}
.gallery-arrows span {
  font-size: 11px;
  color: #839475;
}
.results-panel {
  background: #f0f3eb;
  padding: 30px;
  min-height: 350px;
}
.result-intro {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.result-intro h3 {
  margin: 0 0 9px;
  font-size: 22px;
}
.result-intro p {
  font-size: 11px;
  color: #78896b;
}
.result-intro label {
  font-size: 10px;
  color: #7b8b70;
}
.result-intro select {
  display: block;
  padding: 9px;
  background: #fbfcf8;
  border: 1px solid #cbd8bd;
  margin-top: 8px;
  border-radius: 3px;
  color: #405b34;
  font-size: 11px;
}
.result-bars {
  display: grid;
  gap: 22px;
  margin: 28px 0 35px;
}
.result-bar {
  display: grid;
  grid-template-columns: 95px 1fr 65px;
  gap: 20px;
  align-items: center;
  font-size: 12px;
}
.bar-track {
  height: 25px;
  background: #e0e7d8;
  position: relative;
}
.bar-fill {
  height: 100%;
  background: #87a66c;
  transition: width 0.45s;
}
.result-bar:nth-child(2) .bar-fill {
  background: #375c2b;
}
.result-bar > strong {
  font-weight: 450;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.result-context {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  border-top: 1px solid #d8e0cf;
  padding-top: 22px;
  font-size: 10px;
  color: #8a957e;
}
.result-context strong {
  display: block;
  font-size: 22px;
  font-weight: 450;
  color: #4c6840;
  margin-bottom: 6px;
}
.result-source {
  font-size: 10px;
  color: #859279;
  line-height: 1.8;
}
.result-source a {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.hardware-counts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 30px 0;
}
.hardware-counts strong {
  display: block;
  font-size: 28px;
  font-weight: 450;
  color: #4b6a3b;
}
.hardware-counts span {
  font-size: 10px;
  color: #849477;
  display: block;
  margin-top: 8px;
}
.results-panel > p:not(.annotation) {
  font-size: 13px;
  line-height: 1.8;
  color: #6c7e5f;
  max-width: 850px;
}
.image-comparison {
  position: relative;
  aspect-ratio: 16/8;
  overflow: hidden;
  background: #dde5d4;
  border-radius: 7px;
  --split: 40%;
}
.image-comparison > img,
.image-comparison-top,
.image-comparison-top img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  inset: 0;
}
.image-comparison-top {
  clip-path: inset(0 calc(100% - var(--split)) 0 0);
}
.image-comparison-top img {
  object-position: center;
}
.comparison-divider {
  position: absolute;
  left: var(--split);
  top: 0;
  bottom: 0;
  width: 2px;
  background: white;
  pointer-events: none;
  box-shadow: 0 0 6px #28332055;
}
.comparison-divider:after {
  content: "↔";
  position: absolute;
  left: -19px;
  top: 48%;
  width: 40px;
  height: 40px;
  background: white;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #4e6842;
}
.image-comparison > input {
  position: absolute;
  inset: 0;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: ew-resize;
  margin: 0;
}
.image-label {
  position: absolute;
  top: 18px;
  background: #fcfff4db;
  color: #48623a;
  padding: 8px 12px;
  font-size: 10px;
  pointer-events: none;
}
.image-label.real {
  left: 18px;
}
.image-label.sim {
  right: 18px;
}
.image-comparison:focus-within {
  outline: 3px solid #819d62;
  outline-offset: 4px;
}
.twin-explanation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 55px;
  margin-top: 15px;
}
.twin-explanation p {
  font-size: 13px;
  line-height: 1.8;
  color: #7c8970;
}
.evidence-rows details {
  border-top: 1px solid var(--line);
  padding: 20px 0;
}
.evidence-rows details:last-child {
  border-bottom: 1px solid var(--line);
}
.evidence-rows summary {
  cursor: pointer;
  font-size: 14px;
  line-height: 1.5;
}
.evidence-rows summary span {
  float: right;
  font-size: 10px;
  color: #7d8f6d;
}
.evidence-rows p {
  font-size: 12px;
  line-height: 1.85;
  color: #75866a;
  max-width: 850px;
}
.next-step {
  background: #233e2c;
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 32px;
  margin-top: 35px;
  gap: 30px;
  border-radius: 6px;
}
.next-step h3 {
  font-size: 25px;
  font-weight: 450;
  margin: 0 0 10px;
}
.next-step p {
  font-size: 12px;
  color: #b4c4a7;
  margin: 0;
  line-height: 1.7;
}
.next-step .button {
  background: #d2ecaa;
  color: #355026;
  white-space: nowrap;
}
.reproducibility {
  font-size: 11px;
  color: #829474;
  line-height: 1.8;
  margin-top: 30px;
}
.reproducibility a {
  text-decoration: underline;
}
footer a:hover {
  color: #3d6130;
}
@media (max-width: 850px) {
  .site-header nav {
    display: none;
  }
  .arch-detail {
    grid-template-columns: 1fr;
    gap: 9px;
  }
  .gallery-stage {
    grid-template-columns: 1fr;
  }
  .gallery-stage > div {
    padding: 25px;
  }
  .gallery-stage video {
    min-height: 240px;
  }
  .hardware-counts {
    grid-template-columns: 1fr 1fr;
  }
  .overview-prose {
    gap: 28px;
  }
  .task-topline {
    flex-direction: column;
    gap: 15px;
  }
  .next-step {
    align-items: flex-start;
  }
  .evidence-rows summary span {
    display: block;
    float: none;
    margin-top: 6px;
  }
  .comparison-controls span {
    display: none;
  }
}
@media (max-width: 520px) {
  .project-dateline {
    font-size: 9px;
  }
  .site-header .button {
    font-size: 10px;
  }
  .overview-prose,
  .twin-explanation {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .dependency-words > div {
    padding: 18px 10px;
  }
  .dependency-words strong {
    font-size: 28px;
  }
  .dependency-words span {
    font-size: 10px;
  }
  .architecture {
    padding: 20px 15px;
  }
  .arch-node {
    padding: 14px;
  }
  .arch-branches {
    gap: 10px;
  }
  .arch-node strong {
    font-size: 12px;
  }
  .arch-node small {
    font-size: 9px;
    line-height: 1.7;
  }
  .architecture-goal span {
    font-size: 23px;
  }
  .task-explorer {
    padding: 20px 14px;
  }
  .arm-lanes > div {
    grid-template-columns: 110px 1fr;
    font-size: 10px;
  }
  .predicate-row {
    gap: 5px;
  }
  .predicate-row span {
    font-size: 8px;
  }
  .checkpoint-comparison {
    gap: 10px;
  }
  .checkpoint-comparison p {
    font-size: 9px;
    line-height: 1.6;
  }
  .media-tag {
    font-size: 9px;
    padding: 10px;
  }
  .comparison-heading h3,
  .gallery-heading h3 {
    font-size: 23px;
  }
  .gallery-stage h3 {
    font-size: 26px;
  }
  .results-panel {
    padding: 22px 16px;
  }
  .result-intro {
    align-items: flex-start;
    flex-direction: column;
    gap: 0;
  }
  .result-intro select {
    margin-top: 5px;
  }
  .result-bar {
    grid-template-columns: 68px 1fr 45px;
    gap: 10px;
    font-size: 10px;
  }
  .result-context {
    gap: 15px;
    font-size: 8px;
  }
  .result-context strong {
    font-size: 19px;
  }
  .hardware-counts strong {
    font-size: 24px;
  }
  .image-comparison {
    aspect-ratio: 1.2;
  }
  .image-label {
    font-size: 8px;
    padding: 7px;
  }
  .next-step {
    flex-direction: column;
    padding: 25px;
  }
  .result-source {
    font-size: 9px;
  }
}
.physical-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(260px, 1fr);
  gap: 35px;
  align-items: start;
}
.physical-feature > div {
  min-width: 0;
}
.physical-feature video {
  width: 100%;
  aspect-ratio: 8/3;
  background: #17281d;
  object-fit: contain;
  display: block;
}
#physical-caption {
  font-size: 10px;
  line-height: 1.7;
  color: #788c6b;
}
.physical-feature aside {
  padding: 72px 0 0;
}
.physical-type {
  font-size: 10px;
  color: #77985d;
}
.physical-feature h3 {
  font-size: 27px;
  line-height: 1.25;
  font-weight: 450;
  margin: 17px 0;
}
.physical-feature aside > p {
  font-size: 12px;
  line-height: 1.8;
  color: #74896a;
}
.physical-counts {
  display: flex;
  gap: 35px;
  border-block: 1px solid #d9e2d0;
  margin: 22px 0;
  padding: 20px 0;
}
.physical-counts strong {
  font-size: 29px;
  font-weight: 450;
  color: #3e6131;
}
.physical-counts span {
  display: block;
  font-size: 9px;
  color: #7f9472;
  margin-top: 7px;
}
.physical-feature aside > .annotation {
  font-size: 10px;
}
.older-index {
  border-top: 1px solid #d7e0cc;
  padding-top: 22px;
  margin-top: 25px !important;
}
.results-panel a {
  text-decoration: underline;
  text-underline-offset: 3px;
}
@media (max-width: 850px) {
  .physical-feature {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .physical-feature aside {
    padding: 10px 0 0;
  }
  .physical-counts {
    gap: 45px;
  }
}
@media (max-width: 520px) {
  .physical-feature h3 {
    font-size: 25px;
  }
  .physical-feature video {
    aspect-ratio: 8/3;
  }
  .physical-counts strong {
    font-size: 27px;
  }
}
/* Uncoated paper: monochrome grain, fine fibers and softly shaded edges. */
body {
  background-color: var(--paper);
  background-image:
    url("./assets/paper-texture.svg"),
    radial-gradient(ellipse at 45% 0%, #f9f3e5a6, transparent 65%),
    linear-gradient(
      90deg,
      #dfd8c9 0%,
      #eee8da 14%,
      #f2ecde 48%,
      #eee8da 86%,
      #dfd8c9 100%
    );
  background-size:
    320px 320px,
    100% 1100px,
    100% 100%;
  background-repeat: repeat, no-repeat, no-repeat;
}
.button.light,
.task-explorer,
.demo-grid {
  background-color: #f7f2e6;
}
.task-explorer,
.architecture,
.results-panel,
.gallery-stage,
#physical-panel {
  background-image: url("./assets/paper-texture.svg");
  background-size: 320px 320px;
}
.hero-media,
.demo-grid,
.task-explorer {
  box-shadow:
    0 2px 5px #51473307,
    0 14px 35px #51473305;
}
@media (max-width: 600px) {
  body {
    background-image:
      url("./assets/paper-texture.svg"),
      linear-gradient(110deg, #e9e2d3, #f1ebdd 55%, #e9e3d5);
    background-size:
      320px 320px,
      100% 100%;
    background-repeat: repeat, no-repeat;
  }
}
.intro-actions {
  flex-wrap: wrap;
}
.section-heading > p,
.overview-prose,
.twin-explanation p {
  color: #68735f;
}
@media (max-width: 520px) {
  .intro h1 {
    font-size: 42px;
    letter-spacing: -2px;
  }
  .intro-actions {
    max-width: 360px;
    margin-inline: auto;
  }
}

/* One control system for clips, diagnostics and results. No hidden choices. */
.physical-tabs,
.gallery-buttons,
.results-tabs {
  display: grid;
  gap: 4px;
  padding: 5px 5px 0;
  border: 1px solid #cdd5c3;
  border-bottom: 1px solid #a8b79a;
  border-radius: 7px 7px 0 0;
  background: #eeeade;
}
.physical-tabs {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}
.gallery-buttons {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.results-tabs {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.physical-tabs button,
.gallery-buttons button,
.results-tabs button {
  min-width: 0;
  min-height: 48px;
  border: 0;
  border-bottom: 3px solid transparent;
  border-radius: 4px 4px 0 0;
  padding: 11px 12px;
  background: transparent;
  color: #52634b;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  text-align: center;
}
.physical-tabs button {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}
.tab-meta {
  font-size: 11px;
  font-weight: 400;
  color: #65745c;
}
.physical-tabs button:hover,
.gallery-buttons button:hover,
.results-tabs button:hover {
  background: #e5e8d9;
}
.physical-tabs button[aria-selected="true"],
.gallery-buttons button[aria-selected="true"],
.results-tabs button[aria-selected="true"] {
  border-bottom-color: #315d43;
  background: #faf8ef;
  color: #23452e;
}
.physical-tabs button:focus-visible,
.gallery-buttons button:focus-visible,
.results-tabs button:focus-visible {
  outline: 2px solid #476a37;
  outline-offset: -4px;
}
#physical-panel {
  border: 1px solid #cdd5c3;
  border-top: 0;
  background: #faf8ef;
  border-radius: 0 0 7px 7px;
  overflow: hidden;
}
#physical-caption {
  padding: 12px 14px;
  margin: 0;
  font-size: 12px;
  color: #5d7051;
}
.gallery-heading {
  display: block;
}
.gallery-heading h3 {
  margin-bottom: 20px;
}
.gallery-stage {
  margin-top: 0;
  border-top: 0;
  border-radius: 0 0 7px 7px;
}
.results-panel {
  border: 1px solid #cdd5c3;
  border-top: 0;
  border-radius: 0 0 7px 7px;
}
.result-intro select {
  font-size: 13px;
  min-height: 40px;
}
.chapter-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin: 28px auto 0;
  padding: 16px 0;
  max-width: 1244px;
  border-block: 1px solid var(--line);
}
.chapter-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 13px;
  font-size: 12px;
  border: 1px solid transparent;
  border-radius: 4px;
}
.chapter-nav a:hover {
  border-color: #cdd5c3;
  background: #eeeade;
  color: #23452e;
}
.task-stages {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin: 26px 0 12px;
}
.task-stages button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 10px;
  font-size: 12px;
  line-height: 1.4;
  border: 1px solid #d4ddcb;
  border-radius: 5px;
  background: #f0f2e8;
  color: #52654a;
}
.stage-number {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border: 1px solid #c2cfb5;
  border-radius: 50%;
  font-size: 11px;
}
.task-stages button:hover {
  border-color: #839c6f;
}
.task-stages button.active {
  color: #244a2c;
  border-color: #527442;
  background: #e3edd5;
}
.task-stages button.active .stage-number {
  background: #315d43;
  color: white;
  border-color: #315d43;
}
.task-explorer input[type="range"],
.replay-controls input[type="range"],
.comparison-controls input[type="range"] {
  min-height: 32px;
  cursor: pointer;
}
.gallery-arrows button {
  width: 44px;
  height: 44px;
  color: #315d43;
  border-color: #aabd97;
}
.replay-panel .panel-label {
  height: auto;
  min-height: 58px;
  padding: 10px 14px;
  flex-wrap: wrap;
  gap: 8px;
}
.replay-panel .preset {
  min-height: 36px;
  min-width: 44px;
  padding: 8px 10px;
  font-size: 11px;
  color: #54684a;
}
.replay-panel .preset.active {
  background: #315d43;
  color: #f6f8ef;
}
@media (max-width: 1100px) {
  .task-stages button {
    flex-direction: column;
    gap: 5px;
  }
  .physical-feature {
    grid-template-columns: minmax(0, 1.7fr) minmax(240px, 1fr);
    gap: 25px;
  }
}
@media (max-width: 850px) {
  .physical-feature {
    grid-template-columns: 1fr;
  }
  .physical-feature aside {
    padding-top: 14px;
  }
  .chapter-nav {
    margin-inline: 25px;
  }
}
@media (max-width: 600px) {
  .physical-tabs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .gallery-buttons {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .physical-tabs button,
  .gallery-buttons button,
  .results-tabs button {
    font-size: 12px;
    padding: 10px 6px;
  }
  .task-stages {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .task-stages button {
    flex-direction: row;
    justify-content: flex-start;
    padding: 10px 12px;
  }
  .task-stages button:last-child {
    grid-column: 1 / -1;
  }
  .chapter-nav {
    margin-inline: 18px;
    justify-content: flex-start;
  }
  .chapter-nav a {
    border-color: #d9dece;
    padding: 8px 10px;
  }
  .figure-detail summary {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 8px;
  }
  .figure-detail summary span {
    float: none;
  }
  .result-intro {
    gap: 12px;
  }
}
.mobile-media-picker {
  display: none;
}
.inline-status {
  margin: 14px 0;
  color: #647456;
  font-size: 12px;
  line-height: 1.7;
}
.inline-status button {
  border: 1px solid #aaba99;
  border-radius: 4px;
  padding: 8px 12px;
  color: #315d43;
  background: #faf7ef;
  font-size: 12px;
  cursor: pointer;
}
@media (max-width: 600px) {
  .physical-tabs,
  .gallery-buttons {
    display: none;
  }
  .mobile-media-picker {
    display: flex;
    flex-direction: column;
    gap: 7px;
    padding: 12px 14px;
    border: 1px solid #cdd5c3;
    border-bottom: 1px solid #a8b79a;
    border-radius: 6px 6px 0 0;
    background: #eeeade;
    font-size: 11px;
    font-weight: 500;
    color: #52634b;
  }
  .mobile-media-picker select {
    min-height: 44px;
    width: 100%;
    padding: 9px 10px;
    border: 1px solid #aaba99;
    border-radius: 4px;
    background: #faf7ef;
    color: #244a2e;
    font-size: 14px;
    cursor: pointer;
  }
  .mobile-media-picker + .gallery-buttons + .gallery-stage {
    margin-top: 0;
  }
}
@media (max-width: 600px) {
  .mobile-media-picker select,
  .result-intro select {
    font-size: 16px;
  }
}