:root {
  --lead: #0b1220;
  --bold: #dfe5f0;
  --dim: #ffffff;
  --shell: #ffb300;
  --wide: #111111;
  --size: #d99700;
  --thin: #070b16;
  --soft: #ffffff;
  --base: color-mix(in srgb, var(--bold) 6%, var(--lead));
  --plain: color-mix(in srgb, var(--bold) 3%, var(--lead));
  --space: color-mix(in srgb, var(--bold) 18%, var(--lead));
  --round: color-mix(in srgb, var(--bold) 68%, var(--lead));
  --paper: 1160px;
  --edge: 78ch;
  --core: 14px;
  --cool: 8px;
  --flow: 0 2px 4px rgb(0 0 0 / 10%), 0 16px 40px rgb(0 0 0 / 16%);
  --deep: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --main: clamp(1.15rem, 1.08rem + 0.35vw, 1.35rem);
  --tile: clamp(1.4rem, 1.24rem + 0.75vw, 1.95rem);
  --head: clamp(1.95rem, 1.5rem + 1.9vw, 3.1rem);
}

*, *::after, *::before {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--lead);
  color: var(--bold);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: var(--deep);
  line-height: 1.65;
  -webkit-text-size-adjust: 100%;
  overflow-wrap: break-word;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
}

.route {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--thin);
  color: var(--soft);
}

.caption__plain, .ring__image, .route__plain, .rail__light, .base__foot {
  width: min(100% - 2rem, var(--paper));
  margin-inline: auto;
}

.route__plain {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-height: 60px;
  padding-block: 0.5rem;
}

.circuit {
  display: inline-flex;
  align-items: center;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: inherit;
  white-space: nowrap;
  flex-shrink: 0;
}

.circuit img {
  height: 32px;
  width: auto;
  object-fit: contain;
}

.porch {
  display: flex;
  gap: 0.15rem;
  margin-inline-end: auto;
  min-width: 0;
}

.porch a {
  padding: 0.4rem 0.7rem;
  border-radius: var(--cool);
  text-decoration: none;
  color: inherit;
  opacity: 0.82;
  white-space: nowrap;
  font-size: 0.92rem;
}

.porch a:hover {
  background: color-mix(in srgb, var(--soft) 14%, transparent);
  opacity: 1;
}

.porch:empty {
  display: none;
}

.porch:empty + .route__foot {
  margin-inline-start: auto;
}

.route__foot {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.part {
  display: none;
  position: relative;
  flex-shrink: 0;
}

.part__light {
  list-style: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--soft) 40%, transparent);
  border-radius: var(--cool);
}

.part__light::-webkit-details-marker {
  display: none;
}

.part__light span::before, .part__light span::after, .part__light span {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}

.part__light span {
  position: relative;
}

.part__light span::before {
  position: absolute;
  top: -6px;
}

.part__light span::after {
  position: absolute;
  top: 6px;
}

.part__side {
  position: absolute;
  inset-inline-end: 0;
  top: calc(100% + 0.5rem);
  z-index: 25;
  min-width: 14rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.5rem;
  background: var(--thin);
  border: 1px solid color-mix(in srgb, var(--soft) 20%, transparent);
  border-radius: var(--core);
  box-shadow: var(--flow);
}

.part__side a {
  padding: 0.6rem 0.7rem;
  border-radius: var(--cool);
  text-decoration: none;
  color: var(--soft);
}

.part__side a:hover {
  background: color-mix(in srgb, var(--soft) 12%, transparent);
}

.part__side .room {
  margin-top: 0.4rem;
  color: var(--soft);
  border-color: color-mix(in srgb, var(--soft) 40%, transparent);
}

.route .room_icon {
  color: inherit;
  border-color: color-mix(in srgb, var(--soft) 45%, transparent);
}

.route .room_icon:hover {
  background: color-mix(in srgb, var(--soft) 14%, transparent);
}

.ring {
  background: color-mix(in srgb, var(--soft) 8%, var(--thin));
  border-top: 1px solid color-mix(in srgb, var(--soft) 12%, transparent);
  font-size: 0.9rem;
}

.ring__image {
  display: flex;
  gap: 0.25rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.ring__image::-webkit-scrollbar {
  display: none;
}

.ring a {
  padding: 0.55rem 0.7rem;
  text-decoration: none;
  color: var(--soft);
  opacity: 0.8;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
}

.ring a:hover {
  opacity: 1;
  border-bottom-color: var(--shell);
}

.room {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid var(--grid, transparent);
  border-radius: var(--cool);
  padding: 0.6rem 1.1rem;
  font: inherit;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  cursor: pointer;
  text-decoration: none;
  background: var(--shell);
  color: var(--wide);
  transition: background-color 0.15s ease, transform 0.05s ease;
}

.room:hover {
  background: var(--size);
}

.room:active {
  transform: translateY(1px);
}

.room_icon {
  background: transparent;
  color: var(--dim);
  border-color: var(--space);
}

.room_icon:hover {
  background: var(--base);
}

.room_soft {
  padding: 0.9rem 1.8rem;
  font-size: var(--main);
}

:focus-visible {
  outline: 2px solid var(--shell);
  outline-offset: 2px;
}

.braid h2, .braid h3, .entry, .pocket h2, .base__soft, .pocket h3 {
  color: var(--dim);
  line-height: 1.18;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.entry {
  font-size: var(--head);
  margin: 0 0 1rem;
}

.base__soft {
  font-size: var(--tile);
  margin: 0 0 1.25rem;
}

.braid h3, .pocket h3 {
  font-size: var(--main);
  margin: 1.75rem 0 0.5rem;
}

.braid p, .pocket p {
  margin: 0 0 1rem;
}

.pocket > :last-child, .braid > :last-child {
  margin-bottom: 0;
}

.braid a, .pocket a {
  color: color-mix(in srgb, var(--shell) 72%, var(--dim));
  text-underline-offset: 3px;
}

.floor {
  display: block;
}

.base {
  padding-block: clamp(2rem, 1.4rem + 2vw, 3.5rem);
  scroll-margin-top: 72px;
}

.floor > .base:not(.rail):nth-of-type(odd) {
  background: var(--base);
}

.pocket {
  max-width: var(--edge);
}

.base_list .pocket ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: grid;
  gap: 0.5rem;
}

.base_list .pocket ul > li {
  position: relative;
  padding-inline-start: 1.9rem;
  padding-block: 0.15rem;
}

.base_list .pocket ul > li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: 0.55em;
  width: 0.75rem;
  height: 0.4rem;
  border-inline-start: 2px solid var(--shell);
  border-bottom: 2px solid var(--shell);
  transform: rotate(-45deg);
}

.base_list .pocket ol {
  counter-reset: step;
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.base_list .pocket ol > li {
  counter-increment: step;
  position: relative;
  padding-inline-start: 2.6rem;
}

.base_list .pocket ol > li::before {
  content: counter(step);
  position: absolute;
  inset-inline-start: 0;
  top: 0;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 50%;
  background: var(--shell);
  color: var(--wide);
  font-weight: 700;
  font-size: 0.9rem;
  display: grid;
  place-items: center;
}

.note {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border: 1px solid var(--space);
  border-inline-start: 3px solid var(--round);
  border-radius: 0 var(--cool) var(--cool) 0;
  background: var(--base);
  font-size: 0.95rem;
}

.note p {
  margin: 0 0 0.6rem;
}

.note > :last-child {
  margin-bottom: 0;
}

.note strong {
  color: var(--dim);
}

.note--disclosure {
  color: var(--round);
  font-size: 0.88rem;
  background: transparent;
  border-inline-start-color: var(--space);
}

.note--warning {
  border-inline-start-color: var(--shell);
  background: color-mix(in srgb, var(--shell) 10%, var(--lead));
}

.note--takeaway {
  font-variant-numeric: tabular-nums;
  border-inline-start-color: var(--dim);
}

.note--rg {
  border: 1px solid color-mix(in srgb, var(--dim) 30%, var(--space));
  border-radius: var(--core);
  background: var(--plain);
}

.note--rg a {
  font-weight: 600;
}

.note--independent {
  margin-top: 2.5rem;
  font-size: 0.85rem;
  color: var(--round);
  background: transparent;
  border: 0;
  border-top: 1px solid var(--space);
  border-radius: 0;
  padding: 1rem 0 0;
}

.braid blockquote, .pocket blockquote {
  margin: 1.25rem 0;
  padding: 1rem 1.25rem;
  border-inline-start: 3px solid var(--shell);
  border-radius: 0 var(--cool) var(--cool) 0;
  background: var(--base);
  color: var(--round);
  font-size: 0.95rem;
}

.braid blockquote p, .pocket blockquote p {
  margin: 0 0 0.6rem;
}

.pocket blockquote > :last-child, .braid blockquote > :last-child {
  margin-bottom: 0;
}

.pocket blockquote strong, .braid blockquote strong {
  color: var(--dim);
}

.pocket hr {
  border: 0;
  border-top: 1px solid var(--space);
  margin: 2rem 0;
}

.pocket table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.25rem;
  font-size: 0.95rem;
  background: var(--plain);
  border: 1px solid var(--space);
  border-radius: var(--core);
  overflow: hidden;
}

.base_table .pocket {
  max-width: none;
  overflow-x: auto;
}

.pocket th, .pocket td {
  border-bottom: 1px solid var(--space);
  padding: 0.7rem 0.9rem;
  text-align: start;
  vertical-align: top;
}

.pocket caption {
  caption-side: top;
  text-align: start;
  padding: 0 0 0.6rem;
  font-weight: 700;
  color: var(--dim);
}

.pocket thead th {
  background: color-mix(in srgb, var(--shell) 16%, var(--base));
  color: var(--dim);
  font-weight: 700;
  white-space: nowrap;
}

.pocket tbody tr:last-child td {
  border-bottom: 0;
}

.pocket tbody tr:nth-child(even) {
  background: color-mix(in srgb, var(--bold) 3%, transparent);
}

.branch {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(200px, 260px);
  gap: 2rem;
  align-items: start;
}

.branch__first {
  border: 1px solid var(--space);
  border-radius: var(--core);
  box-shadow: var(--flow);
  width: 100%;
}

.rail {
  position: relative;
  padding-block: clamp(2rem, 1.2rem + 3vw, 4rem);
  background: var(--thin);
  isolation: isolate;
}

.rail::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(rgb(0 0 0 / 72%), rgb(0 0 0 / 82%)), var(--zone, none);
  background-size: cover;
  background-position: center;
}

.module__side {
  margin-top: 1.25rem;
  text-align: center;
}

.module__side a {
  color: var(--shell);
  font-weight: 600;
}

.peak {
  text-align: center;
}

.peak__last {
  font-size: clamp(3.5rem, 12vw, 6rem);
  line-height: 1;
  font-weight: 800;
  color: var(--shell);
  margin-bottom: 0.5rem;
}

.peak__thumb {
  max-width: 46ch;
  margin-inline: auto;
  color: var(--round);
}

.peak__lead {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

@media (max-width: 700px) {
  .rail::before {
    background-image: linear-gradient(rgb(0 0 0 / 72%), rgb(0 0 0 / 82%)), var(--foot, var(--zone, none));
  }

}
.rail__light {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 22rem);
  grid-template-areas: "title offer" "text offer";
  align-content: start;
  gap: 0 2rem;
}

.rail .entry {
  grid-area: title;
  color: #ffffff;
}

.rail__last {
  grid-area: text;
  color: #f2f4f8;
  max-width: 62ch;
}

.rail .braid {
  margin-bottom: 1.5rem;
}

.rail__edge {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  opacity: 0.75;
}

.stair {
  grid-area: offer;
  background: var(--lead);
  border: 1px solid color-mix(in srgb, var(--shell) 40%, var(--space));
  border-radius: var(--core);
  box-shadow: var(--flow);
  overflow: hidden;
  align-self: start;
}

.stair .room {
  width: 100%;
}

.stair__line {
  display: grid;
  place-items: center;
  min-height: 74px;
  padding: 0.9rem 1.25rem;
  background: color-mix(in srgb, var(--shell) 22%, var(--lead));
  color: var(--dim);
  border-bottom: 3px solid var(--shell);
}

.stair__line img {
  height: 42px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

.stair__soft {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.25rem;
  text-align: center;
}

.stair__stub {
  font-weight: 800;
  font-size: var(--main);
  color: inherit;
  text-align: center;
}

.stair__outer {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--round);
  margin: 0;
}

.stair__plain {
  font-size: var(--tile);
  font-weight: 800;
  line-height: 1.15;
  color: var(--dim);
  margin: 0;
  text-wrap: balance;
}

.stair__first {
  font-size: 0.8rem;
  color: var(--round);
  margin: 0;
}

.seam {
  padding-block: 1.5rem;
}

.holder {
  border: 1px solid var(--space);
  border-radius: var(--core);
  background: var(--plain);
  padding: 0.5rem 1.1rem;
}

.holder__image {
  cursor: pointer;
  font-weight: 700;
  color: var(--dim);
  padding-block: 0.6rem;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.holder__image::-webkit-details-marker {
  display: none;
}

.holder__image::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-inline-end: 2px solid var(--shell);
  border-bottom: 2px solid var(--shell);
  transform: rotate(45deg);
  transition: transform 0.15s ease;
}

.holder[open] .holder__image::before {
  transform: rotate(-135deg);
}

.holder__alt {
  columns: 2;
  gap: 2rem;
  margin: 0 0 0.75rem;
  padding-inline-start: 1.2rem;
  font-size: 0.95rem;
}

.holder__alt li {
  break-inside: avoid;
  margin-bottom: 0.3rem;
}

.holder__alt a {
  color: var(--round);
  text-underline-offset: 3px;
}

.holder__alt a:hover {
  color: var(--dim);
}

.element {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.window {
  display: flex;
  flex-direction: column;
  background: var(--plain);
  border: 1px solid var(--space);
  border-radius: var(--core);
  overflow: hidden;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.window:hover {
  border-color: var(--shell);
  transform: translateY(-2px);
}

.window__bottom {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--base);
}

.window__bottom img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.window__side {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 0.85rem;
  margin-top: auto;
}

.window__image {
  font-weight: 600;
  color: var(--dim);
  line-height: 1.3;
  margin: 0;
}

.window .room {
  width: 100%;
  padding-block: 0.5rem;
  font-size: 0.95rem;
}

.vein__on {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.area {
  background: var(--lead);
  border: 1px solid var(--space);
  border-radius: var(--core);
  padding: 1.1rem 1.2rem;
}

.area__soft {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
}

.area__less {
  font-weight: 700;
  color: var(--dim);
}

.area__outer {
  color: var(--shell);
  font-weight: 700;
  white-space: nowrap;
}

.area__off {
  margin: 0;
  color: var(--round);
}

.batch__bottom {
  display: grid;
  gap: 0.5rem;
  max-width: var(--edge);
}

.batch__flat {
  border: 1px solid var(--space);
  border-radius: var(--cool);
  background: var(--plain);
  padding: 0 1.1rem;
}

.batch__soft {
  cursor: pointer;
  font-weight: 600;
  color: var(--dim);
  padding-block: 0.9rem;
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.batch__soft::-webkit-details-marker {
  display: none;
}

.batch__soft::before {
  content: "+";
  color: var(--shell);
  font-weight: 700;
  line-height: 1.4;
  flex-shrink: 0;
}

.batch__flat[open] .batch__soft::before {
  content: "−";
}

.batch__lead {
  color: var(--round);
  padding-bottom: 1rem;
}

.batch__lead > :first-child {
  margin-top: 0;
}

.batch__lead > :last-child {
  margin-bottom: 0;
}

.lot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  padding: 1.5rem;
  border-radius: var(--core);
  background: color-mix(in srgb, var(--shell) 12%, var(--base));
  border: 1px solid color-mix(in srgb, var(--shell) 35%, var(--space));
}

.lot__shut {
  margin: 0;
  font-size: var(--main);
  font-weight: 800;
  color: var(--dim);
  text-wrap: balance;
}

.lot__alt {
  margin: 0.25rem 0 0;
  font-size: 0.82rem;
  color: var(--round);
}

.caption {
  border-top: 1px solid var(--space);
  background: var(--base);
  color: var(--round);
  padding-block: 2rem 6rem;
}

.caption__plain {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  align-items: center;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--space);
}

.caption__shut {
  margin-inline-end: auto;
  font-weight: 700;
  color: var(--dim);
}

.caption__shut img {
  height: 32px;
  width: auto;
  object-fit: contain;
}

.caption__thumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
}

.caption__thumb:empty {
  display: none;
}

.caption__thumb a {
  text-decoration: none;
}

.caption__thumb a:hover {
  text-decoration: underline;
}

.caption__icon {
  width: min(100% - 2rem, var(--paper));
  margin-inline: auto;
  padding-top: 1.25rem;
  font-size: 0.85rem;
  display: grid;
  gap: 0.5rem;
}

.caption__icon p {
  margin: 0;
}

.caption__less {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.wing {
  display: inline-grid;
  place-items: center;
  min-width: 2.1rem;
  height: 2.1rem;
  border: 2px solid currentColor;
  border-radius: 50%;
  font-weight: 800;
  font-size: 0.78rem;
}

.sheet {
  position: fixed;
  inset-inline: 0;
  bottom: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.6rem 1rem calc(0.6rem + env(safe-area-inset-bottom));
  background: color-mix(in srgb, var(--shell) 14%, var(--thin));
  color: var(--soft);
  border-top: 1px solid color-mix(in srgb, var(--shell) 45%, transparent);
}

.sheet__bold {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.25;
}

.sheet__light {
  font-weight: 800;
  color: var(--soft);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sheet__plain {
  font-size: 0.75rem;
  opacity: 0.7;
}

.sheet .room {
  margin-inline-start: auto;
  flex-shrink: 0;
}

@media (max-width: 960px) {
  .rail__light {
    grid-template-columns: 1fr;
    grid-template-areas: "title" "offer" "text";
    gap: 1.25rem;
  }

  .branch {
    grid-template-columns: 1fr;
  }

  .branch__first {
    max-width: 260px;
    margin-inline: auto;
  }

}
@media (max-width: 700px) {
  .holder__alt {
    columns: 1;
  }

  .element {
    grid-template-columns: repeat(auto-fill, minmax(145px, 1fr));
    gap: 0.75rem;
  }

}
@media (max-width: 640px) {
  .route {
    position: static;
  }

  .route__plain {
    flex-wrap: wrap;
    gap: 0.5rem 0.75rem;
    padding-block: 0.6rem;
  }

  .route__plain {
    flex-wrap: nowrap;
  }

  .ring, .route__foot .room_icon, .porch {
    display: none;
  }

  .porch + .route__foot {
    margin-inline-start: auto;
  }

  .part {
    display: block;
    order: 3;
  }

  .route__foot {
    margin-inline-start: auto;
  }

  .route__foot .room {
    padding: 0.5rem 0.8rem;
    font-size: 0.9rem;
  }

  .base {
    padding-block: 1.75rem;
  }

  .lot, .stair__soft {
    padding: 1.15rem;
  }

  .lot .room_soft, .rail__last .room_soft {
    width: 100%;
  }

  .sheet__plain {
    display: none;
  }

}
@media (prefers-reduced-motion: reduce) {
  *, *::before {
    transition: none !important;
  }

}