.tiger-prototype {
  --tiger-paper: #fff;
  --tiger-lavender: var(--purple-milky);
  --tiger-ink: #0b1020;
  --tiger-copy: #383341;
  --tiger-purple: #78377d;
  --tiger-gold: #d4a13a;
  --tiger-stage-height: min(53.875vw, 780px);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--tiger-paper);
  color: var(--tiger-ink);
}

.tiger-prototype main {
  flex: 1 0 auto;
  min-width: 0;
  max-width: 100%;
}

.tiger-prototype > .site-footer {
  margin-top: auto;
}

.tiger-prototype .nav-link.active {
  color: var(--cuhk-purple);
}

.tiger-prototype .tiger-prototype-banner-image {
  object-position: center;
}

.tiger-prototype .dropdown a[href="tiger.html"] {
  background: var(--cuhk-gold);
  color: #fff;
  font-weight: var(--fw-medium);
  border-bottom-right-radius: 10px;
}


.prototype-tiger-list-section .tiger-list {
  margin: 0 auto 0 !important;
}

/* Keep the TIGER page hero in the same editorial family as the prototype
   About hero, with the shared campus visual as its backdrop. */
.tiger-prototype-banner {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: var(--hero-surface);
}

.tiger-prototype-banner-image {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
}

.tiger-prototype-banner-atom {
  position: absolute;
  top: 50%;
  left: 75%;
  z-index: 1;
  width: clamp(220px, 26.56vw, 340px);
  height: clamp(220px, 26.56vw, 340px);
  transform: translate(-50%, -50%);
  transform-origin: center;
  animation: tiger-atom-planet-clockwise 28s linear infinite;
  pointer-events: none;
}

.tiger-prototype-banner-atom .reference-atom-svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.tiger-prototype-banner-atom .atom-svg-orbit {
  fill: none;
  stroke: rgba(255, 255, 255, .92);
  stroke-width: 2;
}

.tiger-prototype-banner-atom .atom-svg-dot {
  filter: saturate(1.35) brightness(1.12) drop-shadow(0 2px 2px rgba(6, 9, 25, .18));
}

.atom-svg-track {
  transform-box: view-box;
  transform-origin: 50% 50%;
}

.atom-svg-track--vertical {
  animation: tiger-atom-orbit-vertical 8.4s ease-in-out -1.7s infinite;
}

.atom-svg-track--diagonal-a {
  animation: tiger-atom-orbit-diagonal-a 10.6s ease-in-out -4.2s infinite;
}

.atom-svg-track--diagonal-b {
  animation: tiger-atom-orbit-diagonal-b 9.3s ease-in-out -2.8s infinite;
}

.atom-svg-dot--cyan { fill: #62a7b1; }
.atom-svg-dot--green { fill: #589359; }
.atom-svg-dot--blue { fill: #53427c; }
.atom-svg-dot--purple { fill: #6d2f6a; }
.atom-svg-dot--orange { fill: #c09144; }

@keyframes tiger-atom-planet-clockwise {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes tiger-atom-orbit-vertical {
  0% { transform: rotate(0deg); }
  50% { transform: rotate(8deg); }
  100% { transform: rotate(0deg); }
}

@keyframes tiger-atom-orbit-diagonal-a {
  0% { transform: rotate(-10deg); }
  31% { transform: rotate(12deg); }
  65% { transform: rotate(-6deg); }
  100% { transform: rotate(-10deg); }
}

@keyframes tiger-atom-orbit-diagonal-b {
  0% { transform: rotate(10deg); }
  31% { transform: rotate(-12deg); }
  65% { transform: rotate(6deg); }
  100% { transform: rotate(10deg); }
}

.tiger-banner-copy {
  position: absolute;
  top: 50%;
  left: var(--hero-inset);
  z-index: 5;
  width: min(680px, calc(100% - var(--hero-inset) - 48px));
  transform: translateY(-50%);
  isolation: isolate;
}

.tiger-banner-eyebrow {
  margin: 0 0 18px;
  color: #d9a32f;
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  font-weight: var(--fw-medium);
  letter-spacing: .16em;
  line-height: 1.2;
  text-transform: uppercase;
}


#tiger-banner-title {
  text-shadow: 0 0 20px #ffffff;
  margin: 0;
  font-weight: 700;
  letter-spacing: 0;
}

.tiger-banner-title-primary,
.tiger-banner-title-highlight {
  display: block;
}

.tiger-banner-title-primary {
  color: var( --gold-royal);
}

.tiger-banner-title-highlight {
  color: var(--hero-title-purple);
}

.tiger-intro {
  padding: var(--section-padding);
  background: var(--tiger-paper);
}

.tiger-intro-inner {
  width: min(100%, 1440px);
  max-width: 100%;
  min-height: 0;
  min-width: 0;
  box-sizing: border-box;
  margin: 0 auto;
  padding: 0;
  display: flex;
  align-items: center;
}

.tiger-intro-copy {
  width: 100%;
  max-width: var(--content);
  min-width: 0;
  box-sizing: border-box;
  margin: 0 auto;
}

.tiger-eyebrow {
  margin: 0 0 18px;
  color: var(--tiger-purple);
  font-size: 14px;
  font-weight: 650;
  letter-spacing: .16em;
  line-height: 1.2;
}

.tiger-intro h1 {
  margin: 0;
  color: var(--tiger-ink);
  font-size: clamp(54px, 5.3vw, 88px);
  font-weight: 700;
  letter-spacing: -.045em;
  line-height: .98;
}

.tiger-accent {
  width: 76px;
  height: 3px;
  margin: 26px 0;
  border-radius: 999px;
  background: var(--tiger-gold);
}

.tiger-intro-copy > p:not(.tiger-eyebrow) {
  max-width: 100%;
  overflow-wrap: anywhere;
  margin: 0 0 24px;
  color: var(--tiger-copy);
  font-size: 18px;
  font-weight: var(--fw-light);
  line-height: 24px;
  text-align: justify;
}

.tiger-intro-copy > p:last-child {
  margin-bottom: 0;
}

.tiger-highlight {
  color: var(--tiger-purple);
  font-weight: 600;
}

.tiger-initial {
  font-weight: 700;
}

.tiger-initial--t { color: var(--t); }
.tiger-initial--i { color: var(--i); }
.tiger-initial--g { color: var(--g); }
.tiger-initial--e { color: var(--e); }
.tiger-initial--r { color: var(--r); }

.tiger-runway-section {
  background: var(--tiger-paper);
}

/* Homepage stone illustration reused as the TIGER page's interactive index. */
.tiger-stone-section {
  padding: var(--section-padding);
  background: var(--tiger-paper);
  overflow: visible;
}

.tiger-stone-stage {
  width: 100%;
  min-height: 0;
  margin: 0 auto;
}

.tiger-stone-stage .stone-stage {
  width: 100%;
  height: clamp(420px, 42vw, 680px);
  min-height: 0;
  max-width: 1440px;
  margin: 0 auto;
  --stage-dx: 0px;
  --stage-dy: 0px;
}

/* Artboard baseline: the site is rendered on a 1440px layout at 1920px
   viewport width. Keep the full diagonal inside this stage, including the
   largest T stone and the smallest R stone. */
.tiger-prototype .tiger-stone-stage .stone--t {
  --x: 14%;
  --y: 84%;
  --w: clamp(112px, 8.9vw, 160px);
}

.tiger-prototype .tiger-stone-stage .stone--i {
  --x: 28%;
  --y: 65%;
  --w: clamp(104px, 8.2vw, 148px);
}

.tiger-prototype .tiger-stone-stage .stone--g {
  --x: 42%;
  --y: 48%;
  --w: clamp(96px, 7.2vw, 130px);
}

.tiger-prototype .tiger-stone-stage .stone--e {
  --x: 55%;
  --y: 31%;
  --w: clamp(88px, 6.5vw, 118px);
}

.tiger-prototype .tiger-stone-stage .stone--r {
  --x: 68%;
  --y: 16%;
  --w: clamp(80px, 5.5vw, 100px);
}

/* The standalone TIGER page keeps the ground shadow and wording visible by
   default. Hover/focus can still reveal the paw imprint, but label visibility
   is no longer dependent on pointer state. */
.tiger-prototype .tiger-stone-stage .stone-label {
  opacity: 1;
  visibility: visible;
  clip-path: polygon(-40% -40%, 240% -40%, -40% 240%);
  transition: none;
}

.tiger-prototype .tiger-stone-stage .stone-label::before,
.tiger-prototype .tiger-stone-stage .stone-label-text {
  opacity: 1;
  animation: none;
}

.tiger-prototype .tiger-stone-stage .stone-label::after {
  opacity: 0;
  animation: none;
}

.tiger-prototype .tiger-stone-stage .stone:is(:hover, :focus-visible) .stone-paw {
  opacity: .34;
  animation: none;
}

.tiger-prototype .tiger-stone-stage .stone:is(:hover, :focus-visible) .stone-label {
  opacity: 1;
  visibility: visible;
  clip-path: polygon(-40% -40%, 240% -40%, -40% 240%);
  transition-delay: 0s;
}

.tiger-prototype .tiger-stone-stage .stone:is(:hover, :focus-visible) .stone-label::before,
.tiger-prototype .tiger-stone-stage .stone:is(:hover, :focus-visible) .stone-label-text {
  opacity: 1;
  animation: none;
}

.tiger-prototype .tiger-stone-stage .stone:is(:hover, :focus-visible) .stone-label::after {
  opacity: 0;
  animation: none;
}

.tiger-runway-stage {
  --tiger-stage-top: 78px;
  --tiger-stage-bottom: 48px;
  position: relative;
  min-height: calc(
    var(--tiger-stage-top) +
    var(--tiger-stage-height) +
    var(--tiger-stage-bottom)
  );
  overflow: hidden;
  isolation: isolate;
}

.tiger-runway-art {
  position: absolute;
  top: var(--tiger-stage-top);
  left: 50%;
  width: min(100%, 1440px);
  height: var(--tiger-stage-height);
  transform: translateX(-50%);
}

.tiger-runway-lanes,
.tiger-runway-lane,
.tiger-runway-letters {
  position: absolute;
  inset: 0;
}

.tiger-runway-lanes {
  pointer-events: none;
}

.tiger-runway-lane {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: fill;
  opacity: .34;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%, 0 0);
  transition: opacity .2s ease, clip-path 1.35s cubic-bezier(.16, 1, .3, 1);
}

.tiger-runway-lane--t { --tiger-runway-start: polygon(43% 0, 47% 0, 47% 1.5%, 43% 1.5%, 43% 0); }
.tiger-runway-lane--i { --tiger-runway-start: polygon(46% 0, 50% 0, 50% 1.5%, 46% 1.5%, 46% 0); }
.tiger-runway-lane--g { --tiger-runway-start: polygon(48% 0, 52% 0, 52% 1.5%, 48% 1.5%, 48% 0); }
.tiger-runway-lane--e { --tiger-runway-start: polygon(50% 0, 55% 0, 55% 1.5%, 50% 1.5%, 50% 0); }
.tiger-runway-lane--r { --tiger-runway-start: polygon(52% 0, 57% 0, 57% 1.5%, 52% 1.5%, 52% 0); }

.tiger-prototype.is-motion-ready .tiger-runway-lane {
  opacity: 0;
  clip-path: var(--tiger-runway-start);
  transition: none;
}

.tiger-prototype.is-motion-ready.is-runway-sequence-ready .tiger-runway-lane {
  transition: opacity .2s ease, clip-path 1.35s cubic-bezier(.16, 1, .3, 1);
}

.tiger-prototype.is-motion-ready .tiger-runway-lane.is-lane-visible {
  opacity: .34;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%, 0 0);
}

.tiger-runway-letters {
  z-index: 2;
}

.tiger-theme-link {
  --letter-final-left: 50%;
  --letter-final-top: 50%;
  position: absolute;
  top: var(--letter-final-top);
  left: var(--letter-final-left);
  display: grid;
  width: clamp(36px, 5.78vw, 74px);
  height: clamp(36px, 5.78vw, 74px);
  place-items: center;
  border-radius: 50%;
  color: var(--tiger-ink);
  text-decoration: none;
  transform: translate(-50%, -50%);
  transition: opacity .2s ease, filter .2s ease;
}

.tiger-theme-letter {
  display: block;
  color: var(--theme-color);
  font-size: clamp(22px, 3.28vw, 42px);
  font-weight: var(--fw-medium);
  letter-spacing: 0;
  line-height: 1;
  text-shadow: 0 8px 16px rgba(11, 16, 32, .16);
  transition: transform .2s ease, text-shadow .2s ease;
}

.tiger-theme-link--t { --theme-color: var(--t); --letter-final-left: 21.7%; --letter-final-top: 39.7%; }
.tiger-theme-link--i { --theme-color: var(--i); --letter-final-left: 30.4%; --letter-final-top: 54.3%; }
.tiger-theme-link--g { --theme-color: var(--g); --letter-final-left: 40.1%; --letter-final-top: 64.6%; }
.tiger-theme-link--e { --theme-color: var(--e); --letter-final-left: 49.4%; --letter-final-top: 76.7%; }
.tiger-theme-link--r { --theme-color: var(--r); --letter-final-left: 58.6%; --letter-final-top: 92.4%; }

.tiger-theme-label {
  position: absolute;
  top: 50%;
  left: calc(100% + 12px);
  width: 430px;
  height: 36px;
  display: block;
  color: var(--tiger-ink);
  font-family: "Roboto", sans-serif;
  font-size: 28px;
  font-style: normal;
  font-weight: 400;
  line-height: 36px;
  text-align: center;
  white-space: nowrap;
  opacity: 1;
  transform: translateY(-50%);
  transition: opacity .45s ease, transform .55s cubic-bezier(.16, 1, .3, 1);
}

.tiger-theme-arrow {
  display: inline-block;
  margin-left: 9px;
  color: var(--theme-color);
  font-weight: 400;
  transition: transform .2s ease;
}

.tiger-prototype.is-motion-ready .tiger-theme-link {
  opacity: 0;
  transform: translate(-50%, calc(-50% + 30px)) rotate(-4deg) scale(.84);
}

.tiger-prototype.is-motion-ready .tiger-theme-label {
  opacity: 0;
  transform: translate(18px, -50%);
}

.tiger-prototype.is-motion-ready .tiger-theme-link.is-letter-visible {
  opacity: 1;
}

.tiger-prototype.is-motion-ready .tiger-theme-label.is-label-visible {
  opacity: 1;
  transform: translate(0, -50%);
}

.tiger-theme-link:hover .tiger-theme-letter,
.tiger-theme-link:focus-visible .tiger-theme-letter {
  transform: translateY(-4px) rotate(-3deg);
  text-shadow: 0 11px 20px rgba(11, 16, 32, .22);
}

.tiger-theme-link:hover .tiger-theme-arrow,
.tiger-theme-link:focus-visible .tiger-theme-arrow {
  transform: translateX(5px);
}

.tiger-runway-letters:has(.tiger-theme-link:hover) .tiger-theme-link:not(:hover),
.tiger-runway-letters:has(.tiger-theme-link:focus-visible) .tiger-theme-link:not(:focus-visible) {
  opacity: .82;
  filter: saturate(.92);
}

.tiger-theme-link:focus-visible {
  outline: 3px solid var(--tiger-gold);
  outline-offset: 9px;
  border-radius: 4px;
}

.tiger-closing {
  box-sizing: border-box;
  position: relative;
  width: 100%;
  max-width: none;
  min-height: 0;
  margin: 0;
  padding: var(--section-padding);
  background: var(--tiger-paper);
}

.tiger-closing-inner {
  box-sizing: border-box;
  position: relative;
  width: min(100%, var(--content));
  min-height: 136px;
  margin: 0 auto;
  padding: 32px 40px;
  border: 3px solid transparent;
  border-radius: 30px;
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(
      90deg,
      rgba(232, 232, 232, .55) 0%,
      rgba(200, 164, 203, .7) 18%,
      var(--purple-dynamic) 48%,
      var(--purple-dynamic) 100%
    ) border-box;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tiger-closing p {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 100%;
  overflow-wrap: anywhere;
  margin: 0;
  color: #171321;
  font-size: 24px;
  font-weight: var(--fw-light);
  line-height: 32px;
  text-align: center;
}

.tiger-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 767px) {
  .tiger-intro-inner {
    min-height: 0;
    padding: 0;
  }

  .tiger-intro-copy > p:not(.tiger-eyebrow) {
    font-size: clamp(16px, 3.8vw, 18px);
    line-height: 1.55;
    text-align: left;
  }

  .tiger-runway-stage {
    --tiger-stage-top: 86px;
    --tiger-stage-bottom: 40px;
    --tiger-stage-height: calc((100vw - 48px) * .53875);
  }

  .tiger-runway-art {
    top: var(--tiger-stage-top);
    left: 24px;
    width: calc(100% - 48px);
    height: var(--tiger-stage-height);
    transform: none;
  }

  .tiger-stone-section {
    padding: var(--section-padding);
  }

  .tiger-stone-stage {
    width: 100%;
    min-height: 0;
  }

  .tiger-stone-stage .stone-stage {
    height: clamp(520px, 115vw, 680px);
    min-height: 520px;
    margin: 0;
  }

  .tiger-stone-stage .stone-mobile-list {
    width: 100%;
    margin-top: 0;
  }

  .tiger-theme-link {
    width: clamp(14px, 5vw, 54px);
    height: clamp(14px, 5vw, 54px);
  }

  .tiger-theme-letter {
    font-size: clamp(10px, 3.2vw, 32px);
  }

  .tiger-theme-label {
    left: calc(100% + 8px);
    width: var(--mobile-label-width);
    min-height: 16px;
    height: auto;
    font-size: clamp(9px, 2.6vw, 12px);
    line-height: 1.15;
    text-align: left;
    white-space: normal;
  }

  .tiger-theme-link--t { --mobile-label-width: calc(80vw - 52px); }
  .tiger-theme-link--i { --mobile-label-width: calc(71.5vw - 52px); }
  .tiger-theme-link--g { --mobile-label-width: calc(63vw - 52px); }
  .tiger-theme-link--e { --mobile-label-width: calc(54.5vw - 52px); }
  .tiger-theme-link--r { --mobile-label-width: calc(46vw - 52px); }

  .tiger-closing {
    width: 100%;
    margin: 0;
    padding: var(--section-padding);
  }

  .tiger-closing-inner {
    min-height: 0;
    padding: 28px 20px;
    border-radius: 20px;
  }

  .tiger-closing p {
    font-size: clamp(16px, 3.8vw, 18px);
    line-height: 1.55;
  }
}

/* Tablet uses the same responsive list canvas as the homepage TIGER section.
   Keep the desktop artboard above this breakpoint, but let the tablet list,
   tiger and message scale together instead of shrinking the old canvas. */
@media (min-width: 768px) and (max-width: 1279px) {
  body.tiger-prototype {
    --mobile-tiger-width: clamp(76px, 13vw, 150px);
    --mobile-tiger-height: clamp(150px, 28vw, 300px);
    --mobile-tiger-gap: clamp(14px, 2vw, 28px);
  }

  .tiger-prototype .tiger-stone-section {
    padding: var(--section-padding);
  }

  .tiger-prototype .tiger-stone-stage {
    display: flex;
    flex-direction: column;
    width: 100%;
    aspect-ratio: auto;
    min-height: 0;
    margin: 0 auto;
  }

  .tiger-prototype .tiger-stone-stage::before {
    display: none;
  }

  .tiger-prototype .tiger-stone-stage .stone-stage {
    display: none;
  }

  .tiger-prototype .tiger-stone-stage .mobile-leap-message {
    order: 1;
    display: block;
    width: 100%;
    margin: 12px 0 14px;
    color: var(--cuhk-purple);
    font-size: clamp(18px, 1.8vw, 28px);
    font-weight: 600;
    letter-spacing: -.025em;
    line-height: 1.1;
    text-align: center;
    white-space: nowrap;
  }

  .tiger-prototype .tiger-stone-stage .stone-mobile-list {
    display: grid;
    order: 2;
    position: relative;
    width: calc(100% - var(--mobile-tiger-width) - var(--mobile-tiger-gap));
    margin: 0;
    border: 0;
    overflow: visible;
  }

  .tiger-prototype .tiger-stone-stage .stone-mobile-list-item {
    position: relative;
    display: grid;
    grid-template-columns: clamp(48px, 6vw, 64px) minmax(0, 1fr);
    align-items: center;
    gap: clamp(10px, 1.5vw, 16px);
    min-height: clamp(52px, 6.5vw, 68px);
    padding: 10px 0;
    border: 0;
    color: var(--tiger-ink);
    font-size: clamp(16px, 2vw, 21px);
    font-weight: 535;
    line-height: 1.3;
    overflow: hidden;
  }

  .tiger-prototype .tiger-stone-stage .stone-mobile-list-stone {
    display: block;
    width: clamp(48px, 6vw, 64px);
  }

  .tiger-prototype .tiger-stone-stage .stone-mobile-list::after {
    content: "";
    position: absolute;
    top: 50%;
    right: auto;
    left: var(--tiger-first-frame-left,
      calc(100% + var(--mobile-tiger-gap)));
    z-index: 0;
    width: var(--mobile-tiger-width);
    height: var(--mobile-tiger-height);
    background: url("../assets/tiger.svg") no-repeat right center / contain;
    opacity: var(--tiger-opacity, .58);
    pointer-events: none;
    transform: translateY(-50%);
  }
}

/* Desktop keeps the same list canvas and sequence as tablet, with the
   artwork and type allowed to grow into the wider page. */
@media (min-width: 1280px) {
  body.tiger-prototype {
    --mobile-tiger-width: clamp(120px, 12vw, 180px);
    --mobile-tiger-height: clamp(240px, 30vw, 360px);
    --mobile-tiger-gap: clamp(20px, 2vw, 32px);
  }

  .tiger-prototype .tiger-stone-section {
    padding: var(--section-padding);
  }

  .tiger-prototype .tiger-stone-stage {
    display: flex;
    flex-direction: column;
    width: min(1064px, calc(100% - 216px));
    aspect-ratio: auto;
    min-height: 0;
    margin: 0 auto;
  }

  .tiger-prototype .tiger-stone-stage::before {
    display: none;
  }

  .tiger-prototype .tiger-stone-stage .stone-stage {
    display: none;
  }

  .tiger-prototype .tiger-stone-stage .mobile-leap-message {
    order: 1;
    display: block;
    width: 100%;
    margin: 16px 0 18px;
    color: var(--cuhk-purple);
    font-size: clamp(22px, 2vw, 32px);
    font-weight: 600;
    letter-spacing: -.025em;
    line-height: 1.1;
    text-align: center;
    white-space: nowrap;
  }

  .tiger-prototype .tiger-stone-stage .stone-mobile-list {
    display: grid;
    order: 2;
    position: relative;
    width: calc(100% - var(--mobile-tiger-width) - var(--mobile-tiger-gap));
    margin: 0;
    border: 0;
    overflow: visible;
  }

  .tiger-prototype .tiger-stone-stage .stone-mobile-list-item {
    position: relative;
    display: grid;
    grid-template-columns: clamp(64px, 6vw, 84px) minmax(0, 1fr);
    align-items: center;
    gap: clamp(14px, 1.5vw, 20px);
    min-height: clamp(64px, 6.5vw, 84px);
    padding: 12px 0;
    border: 0;
    color: var(--tiger-ink);
    font-size: clamp(18px, 2vw, 28px);
    font-weight: 535;
    line-height: 1.3;
    overflow: hidden;
  }

  .tiger-prototype .tiger-stone-stage .stone-mobile-list-stone {
    display: block;
    width: clamp(64px, 6vw, 84px);
  }

  .tiger-prototype .tiger-stone-stage .stone-mobile-list::after {
    content: "";
    position: absolute;
    top: 50%;
    right: auto;
    left: var(--tiger-first-frame-left,
      calc(100% + var(--mobile-tiger-gap)));
    z-index: 0;
    width: var(--mobile-tiger-width);
    height: var(--mobile-tiger-height);
    background: url("../assets/tiger.svg") no-repeat right center / contain;
    opacity: var(--tiger-opacity, .58);
    pointer-events: none;
    transform: translateY(-50%);
  }
}

/* Keep the desktop stone stage at every width. At tablet and phone widths the
   artboard becomes a fluid portrait composition instead of switching to a
   separate list representation. */
@media (min-width: 768px) and (max-width: 1023px) {
  /* styles.css uses a fixed 1440px artboard from 768px upward. Switch this
     page back to a real fluid viewport before measuring the stone stage. */
  body.tiger-prototype {
    width: 100%;
    max-width: 100%;
    padding-top: var(--header-h);
    overflow-x: hidden;
  }

  body.tiger-prototype > .site-header,
  body.tiger-prototype > main,
  body.tiger-prototype > .site-footer {
    width: 100%;
    max-width: 100%;
    zoom: 1;
  }

  body.tiger-prototype .header-inner {
    padding-inline: clamp(24px, 4vw, 56px);
  }

  body.tiger-prototype .brand img {
    width: clamp(140px, 18vw, 200px);
  }

  body.tiger-prototype .brand-title {
    max-width: 270px;
    font-size: clamp(16px, 2vw, 24px);
    white-space: nowrap;
  }

  body.tiger-prototype .nav {
    gap: clamp(12px, 1.5vw, 24px);
  }

  body.tiger-prototype .nav-link {
    font-size: clamp(15px, 1.7vw, 20px);
  }

  .tiger-stone-section {
    padding: var(--section-padding);
  }

  .tiger-stone-stage {
    width: 100%;
  }

  .tiger-stone-stage .stone-stage {
    display: block;
    height: clamp(520px, 72vw, 680px);
    margin: 0 auto;
  }

  .tiger-stone-stage .stone-label {
    width: min(320px, calc(100vw - 32px));
    white-space: normal;
  }

  .tiger-stone-stage .stone-label-text {
    font-size: clamp(12px, 1.55vw, 20px);
    line-height: 1.15;
  }

  .tiger-stone-stage .stone-mobile-list {
    display: none;
  }
}

@media (max-width: 767px) {
  .tiger-stone-stage .stone-stage {
    display: block;
    height: clamp(520px, 150vw, 680px);
    margin: 0 auto;
  }

  .tiger-prototype .tiger-stone-stage .stone--t {
    --x: 18%; --y: 86%; --w: clamp(68px, 24vw, 112px);
  }

  .tiger-prototype .tiger-stone-stage .stone--i {
    --x: 34%; --y: 67%; --w: clamp(64px, 21vw, 104px);
  }

  .tiger-prototype .tiger-stone-stage .stone--g {
    --x: 50%; --y: 49%; --w: clamp(60px, 18vw, 96px);
  }

  .tiger-prototype .tiger-stone-stage .stone--e {
    --x: 66%; --y: 31%; --w: clamp(56px, 16vw, 88px);
  }

  .tiger-prototype .tiger-stone-stage .stone--r {
    --x: 82%; --y: 14%; --w: clamp(52px, 14vw, 80px);
  }

  .tiger-stone-stage .stone-label {
    left: 50%;
    top: calc(100% + 6px);
    width: min(280px, calc(100vw - 32px));
    max-width: calc(100vw - 32px);
    white-space: normal;
    text-align: center;
    transform: translate(-50%, 0) rotate(0deg);
  }

  .tiger-stone-stage .stone-label-text {
    font-size: clamp(10px, 3.5vw, 15px);
    line-height: 1.15;
  }

  .tiger-stone-stage .stone-mobile-list {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tiger-prototype-banner-atom,
  .tiger-prototype-banner-atom .atom-svg-track {
    animation: none;
  }

  .tiger-runway-lane {
    opacity: .34;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%, 0 0);
    transition: none;
  }

  .tiger-theme-link,
  .tiger-prototype.is-motion-ready .tiger-theme-link {
    opacity: 1;
    transform: translate(-50%, -50%);
    transition: none;
  }

  .tiger-theme-label,
  .tiger-prototype.is-motion-ready .tiger-theme-label {
    opacity: 1;
    transform: translateY(-50%);
    transition: none;
  }
}

/* Shared homepage geometry: tiger.html uses the same 400 x 520 canvas and
   T/I/G/E/R coordinates as index.html, while keeping its own hover-only
   interaction rules above. */
.tiger-prototype .tiger-stone-section {
  position: relative;
  isolation: isolate;
  overflow: visible;
}

.tiger-prototype .tiger-stone-section::before {
  display: none;
}

.tiger-prototype .tiger-stone-stage {
  position: relative;
  z-index: 1;
  width: min(800px, calc(100vw - 48px));
  aspect-ratio: 1 / 1;
  min-height: 0;
  margin: 0 auto;
}

.tiger-prototype .tiger-stone-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: url("../assets/tiger.svg") no-repeat -28px -28px /
    min(38vw, 320px) auto;
  opacity: .68;
}

.tiger-prototype .tiger-stone-stage .stone-stage {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  max-width: none;
  min-height: 0;
  margin: 0;
}

.tiger-prototype .tiger-stone-stage .stone--t {
  --x: 0%; --y: 82%; --w: 160px;
}

.tiger-prototype .tiger-stone-stage .stone--i {
  --x: 22%; --y: 58%; --w: 148px;
}

.tiger-prototype .tiger-stone-stage .stone--g {
  --x: 39%; --y: 37%; --w: 130px;
}

.tiger-prototype .tiger-stone-stage .stone--e {
  --x: 58%; --y: 19%; --w: 118px;
}

.tiger-prototype .tiger-stone-stage .stone--r {
  --x: 75%; --y: 2%; --w: 100px;
}

@media (max-width: 767px) {
  body.tiger-prototype {
    --mobile-tiger-width: min(40vw, 120px);
    --mobile-tiger-height: min(60vw, 240px);
  }

  .tiger-prototype .tiger-stone-section {
    padding: var(--section-padding);
  }

  .tiger-prototype .tiger-stone-stage {
    width: 100%;
    aspect-ratio: auto;
  }

  .tiger-prototype .tiger-stone-stage::before {
    display: none;
  }

  body.tiger-prototype .tiger-stone-stage .stone-mobile-list {
    position: relative;
    width: min(520px, calc(100% - var(--mobile-tiger-width)));
    margin: 12px 0 0;
    border-top: 0;
  }

  body.tiger-prototype .tiger-stone-stage .stone-mobile-list::after {
    content: "";
    position: absolute;
    top: 50%;
    left: calc(100% + 16px);
    width: var(--mobile-tiger-width);
    height: var(--mobile-tiger-height);
    background: url("../assets/tiger.svg") no-repeat right center / contain;
    opacity: var(--tiger-opacity, .58);
    pointer-events: none;
    transform: translateY(-50%);
  }

  body.tiger-prototype .tiger-stone-stage .stone-mobile-list-item {
    border-bottom: 0;
  }
}

@media (max-width: 767px) {
  .tiger-prototype .tiger-prototype-banner {
    --tiger-mobile-orbit-size: clamp(80px, 18vw, 124px);
    display: grid;
    grid-template-columns: minmax(0, 1fr) calc(var(--tiger-mobile-orbit-size) + 40px);
    grid-template-rows: var(--prototype-hero-mobile-height) auto;
    height: auto;
    min-height: 0;
    overflow: visible;
    background: var(--surface);
  }

  .tiger-prototype .tiger-prototype-banner-image {
    top: 0;
    bottom: auto;
    height: var(--prototype-hero-mobile-height);
  }

  .tiger-prototype .tiger-banner-copy {
    position: relative;
    inset: auto;
    grid-row: 2;
    grid-column: 1;
    display: flex;
    align-items: center;
    width: auto;
    min-width: 0;
    margin-top: 0;
    padding: 24px 8px;
    padding-left: var(--hero-inset);
    background: var(--surface);
    transform: none;
  }

  .tiger-prototype .tiger-banner-copy h1 {
    width: 100%;
    text-shadow: none;
  }

  .tiger-prototype .tiger-prototype-banner-atom {
    position: relative;
    inset: auto;
    grid-row: 2;
    grid-column: 2;
    align-self: center;
    justify-self: center;
    width: var(--tiger-mobile-orbit-size);
    height: var(--tiger-mobile-orbit-size);
    transform: none;
    animation-name: tiger-atom-planet-clockwise-mobile;
  }

  .tiger-prototype .tiger-prototype-banner-atom .atom-svg-orbit {
    stroke: #000;
  }
}

@keyframes tiger-atom-planet-clockwise-mobile {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}