@import url("/brand/tokens.css");

* { box-sizing: border-box; }
html { height: 100%; }
body {
  margin: 0;
  min-height: 100%;
  background: var(--page);
  color: var(--ink);
  font: 16px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  overflow-x: clip;
}
.skip { position: absolute; left: -999px; }
.skip:focus {
  left: 12px;
  top: 12px;
  background: var(--sheet);
  padding: 6px 10px;
}
.mast {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1180px;
  width: 100%;
  margin: 0 auto;
  padding: 22px 28px 0;
}
.mark {
  display: flex;
  align-items: center;
  gap: 9px;
  color: inherit;
  text-decoration: none;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.02em;
}
.mark-name { display: flex; flex-direction: column; gap: 1px; line-height: 1.1; }
.sub {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--mute);
}
.ring { width: 16px; height: 16px; color: var(--ring); }
.ring-fill { stroke-dasharray: 18 76; }
.mast-end {
  display: flex;
  align-items: center;
  gap: 8px;
}
.pay-link {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mute);
  text-decoration: none;
  padding: 4px 7px;
  border: 1px solid transparent;
  border-radius: 4px;
}
.pay-link:hover, .pay-link:focus-visible, .pay-link.is-on { color: var(--ink); }
.lang {
  font: inherit;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--mute);
  padding: 4px 7px;
  border-radius: 4px;
  cursor: pointer;
}
.lang:hover, .lang:focus-visible { color: var(--ink); }
.pay-main {
  justify-content: center;
  align-items: center;
  text-align: center;
  max-width: 560px;
}
.pay {
  font: inherit;
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--page);
  background: var(--ring);
  border: none;
  border-radius: 2px;
  padding: 12px 28px;
  cursor: pointer;
}
.pay:hover, .pay:focus-visible { filter: brightness(1.06); }
.pay:disabled {
  background: transparent;
  color: var(--mute);
  border: 1px solid var(--line);
  cursor: not-allowed;
  filter: none;
}
.pay:active { transform: scale(0.97); }
.pay-main .note { margin: 16px auto 0; }
.me-main { max-width: 640px; }
.style-list {
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
}
.style-list li {
  display: grid;
  grid-template-columns: minmax(8em, 1fr) minmax(8em, 2fr) 2.2em;
  gap: 10px;
  align-items: center;
  font-size: 14px;
  margin: 0 0 8px;
}
.meter {
  display: block;
  height: 6px;
  background: var(--line);
  border-radius: 99px;
  overflow: hidden;
}
.meter i {
  display: block;
  height: 100%;
  background: var(--ring);
}
.style-list em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--mute);
  text-align: right;
}
.play {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 8px;
}
.me-main .files { margin-top: 0; }
.me-main #gate a { color: var(--ring); }
main {
  flex: 1;
  max-width: 1180px;
  width: 100%;
  min-width: 0;
  margin: 0 auto;
  padding: 24px 28px 80px;
  display: flex;
  flex-direction: column;
}
.kicker {
  margin: 0 0 22px;
  max-width: none;
  text-align: left;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--mute);
}
.stage {
  display: grid;
  grid-template-columns: minmax(260px, 1.08fr) minmax(280px, 1fr);
  gap: 8px 44px;
  align-items: start;
}
.col { min-width: 0; }
.col-after { padding-top: 0; }
.tree-fit {
  width: auto;
  max-width: 100%;
  height: auto;
  margin: 0 0 4px;
}
.after-miss {
  margin: 8px 0 0;
  font-size: 14px;
  color: var(--mute);
}
.after-miss[hidden] { display: none; }
.tabs {
  display: flex;
  justify-content: flex-start;
  gap: 6px;
  margin: 0 0 18px;
}
.tab {
  font: inherit;
  font-family: var(--mono);
  font-size: 12px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  background: transparent;
  color: inherit;
  border-radius: 4px;
  cursor: pointer;
}
.tab:hover, .tab:focus-visible { border-color: var(--ink); }
.tab.is-on { border-color: var(--ring); color: var(--ring); }
.tab:active { transform: scale(0.97); }
.tree-clip {
  overflow: hidden;
  max-height: min(58vh, 520px);
  -webkit-mask-image:
    linear-gradient(to right, #000 0%, #000 58%, transparent 100%),
    linear-gradient(to bottom, #000 0%, #000 78%, transparent 100%);
  mask-image:
    linear-gradient(to right, #000 0%, #000 58%, transparent 100%),
    linear-gradient(to bottom, #000 0%, #000 78%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
}
.tree-svg {
  display: block;
  width: auto;
  max-width: none;
  height: auto;
  margin: 0;
  color: var(--ink);
  overflow: visible;
}
.legend {
  margin: 8px 0 0;
  max-width: none;
  text-align: left;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--mute);
}
.tree-edge {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.25;
  opacity: 0.28;
}
.tree-edge.is-ghost { opacity: 0.12; }
.tree-node { cursor: pointer; color: var(--ink); }
.tree-node .hit { fill: transparent; }
.tree-node .halo {
  fill: none;
  stroke: var(--ring);
  stroke-width: 1.25;
  opacity: 0;
}
.tree-node.is-on .halo { opacity: 1; }
.tree-node .hub { fill: var(--ink); }
.tree-node.is-aligned { color: var(--ring); }
.tree-node.is-leaking { color: var(--ink); }
.tree-node.is-shelf { color: var(--mute); }
.tree-node.is-on .hub { fill: var(--ring); }
.tree-word {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.02em;
  fill: var(--mute);
}
.tree-node.is-on .tree-word { fill: var(--ring); }
.tree-node.is-leaking.is-on .tree-word { fill: currentColor; }
.tree-node.is-ghost {
  pointer-events: none;
  opacity: 0.22;
}
.tree-node.is-ghost .halo,
.tree-node.is-ghost .hit { display: none; }
.tree-node.is-ghost .tree-word { fill: var(--mute); }
.files-head {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--mute);
}
.files {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
}
.files li { color: var(--mute); }
.files .is-door { color: var(--ring); }
.files .is-leak { color: inherit; text-decoration: line-through; opacity: 0.55; }
.tree-node:focus { outline: none; }
.tree-node:focus-visible circle,
.tree-node:focus-visible rect,
.tree-node:focus-visible .hub {
  outline: 2px solid var(--ring);
  outline-offset: 3px;
}
.beat {
  width: 100%;
  max-width: none;
  margin: 28px 0 0;
}
.col-after .beat { margin-top: 28px; }
.beat-h {
  display: flex;
  justify-content: flex-start;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--mute);
}
.beat-h .n { color: var(--ink); }
.map {
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 18px 16px 16px;
  width: 100%;
  min-width: 0;
  margin: 16px 0 0;
}
.note {
  margin: 12px 0 0;
  font-size: 14px;
  color: var(--mute);
  max-width: 36em;
}
.fig {
  width: 100%;
  min-width: 0;
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: 2px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
}
.fig-u { background: var(--page); }
.pane {
  min-width: 0;
  padding: 16px 14px 14px;
}
.pane-head {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--mute);
}
.code-row {
  margin: 0 0 10px;
  color: var(--mute);
}
.code-row:last-child { margin: 0; }
.code-file {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.02em;
  color: var(--mute);
  margin: 0 0 2px;
}
.code-src {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.45;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.code-row.is-mark {
  color: var(--ink);
  box-shadow: inset 2px 0 0 var(--ink);
  padding-left: 8px;
  margin-left: -2px;
}
.code-row.is-mark.is-good { box-shadow: inset 2px 0 0 var(--ring); }
.code-row.is-mark .code-src { color: var(--ink); }
.code-row.is-mark.is-good .code-src { color: var(--ring); }
.quiz-pane {
  margin: 12px 12px 12px -10px;
  padding: 16px 16px 14px;
  background: var(--sheet);
  border: 1px solid var(--line);
  position: relative;
  z-index: 1;
}
.quiz-q {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--ink);
}
.pick {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--mute);
}
.pick span { white-space: pre-line; }
.pick .dot {
  width: 8px;
  height: 8px;
  margin-top: 4px;
  border: 1.5px solid currentColor;
  border-radius: 50%;
  flex: none;
}
.pick.is-on { color: var(--ink); }
.pick.is-on.is-good { color: var(--ring); }
.pick.is-on .dot {
  background: currentColor;
}
.fork {
  display: flex;
  gap: 18px;
  margin: 16px 0 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--mute);
}
.fork span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.fork .is-on { color: var(--ink); }
.fork .is-on.is-good { color: var(--ring); }
.ringlet {
  width: 10px;
  height: 10px;
  border: 2px solid currentColor;
  border-radius: 50%;
  flex: none;
}
.ringlet.is-dash {
  border-width: 1.5px;
  border-style: dashed;
}
.quiz-pane.is-none,
.close-pane.is-none {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  color: var(--mute);
}
.shelf-mark {
  width: 12px;
  height: 12px;
  border: 1.5px solid var(--mute);
  margin: 0 0 10px;
}
.fig-c .pane + .pane { border-left: 1px solid var(--line); }
.test-src {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
  color: var(--ink);
  white-space: pre-wrap;
}
.preview-frame {
  aspect-ratio: 8 / 5;
  border: 1px solid var(--line);
  background: var(--page);
  display: grid;
  place-items: center;
  color: var(--ring);
}
.preview-frame.is-empty {
  border-style: dashed;
  border-color: var(--mute);
  color: var(--mute);
  opacity: 0.55;
}
.fig-u.is-shelf .quiz-pane {
  margin: 0;
  border: none;
  border-left: 1px solid var(--line);
  background: var(--sheet);
}
.mini {
  width: 88%;
  max-width: 120px;
  height: auto;
  display: block;
}
.fig-u.is-shelf,
.fig-c.is-shelf {
  background: var(--sheet);
}
.install {
  margin-top: 56px;
  max-width: 36em;
}
.install .pay {
  display: inline-block;
  text-decoration: none;
  margin: 8px 0 12px;
}
.inst-fine { margin-top: 0; }
@media (min-width: 841px) {
  .col-before {
    position: sticky;
    top: 16px;
    align-self: start;
  }
}
@media (max-width: 840px) {
  .stage { grid-template-columns: 1fr; gap: 28px; }
  .tree-clip { max-height: 300px; }
  .col-before { position: static; }
}
@media (max-width: 560px) {
  .mast, main { padding-left: 20px; padding-right: 20px; }
  .fig { grid-template-columns: 1fr; }
  .quiz-pane {
    margin: 0;
    border: none;
    border-top: 1px solid var(--line);
  }
  .fig-u.is-shelf .quiz-pane {
    border-left: none;
    border-top: 1px solid var(--line);
  }
  .fig-c .pane + .pane {
    border-left: none;
    border-top: 1px solid var(--line);
  }
}
:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  .tab:active { transform: none; }
}