.pk-piece { --size-display-sub: clamp(36px, 3.6vw, 48px); }


.pk-piece .movement-deepest .pa-sub { color: var(--ink-inverse-muted); }


.pk-piece [id] { scroll-margin-top: 88px; }



.pk-piece .pk-hero {
  position: relative;
  isolation: isolate;
  min-height: 500px;
  display: flex;
  align-items: center;
  padding-inline: var(--gutter);
  overflow: hidden;
}
.pk-piece .pk-hero-media {
  position: absolute; inset: 0; z-index: -2;
  background-size: cover; background-position: center;
}
.pk-piece .pk-hero-scrim {
  position: absolute; inset: 0; z-index: -1;
  background: var(--surface-deepest);
}
.pk-piece .pk-hero-in {
  max-width: 880px;
  margin-inline: auto;
  padding-block: var(--sp-8);
  text-align: center;
}
.pk-piece .pk-hero .t-display { font-size: var(--size-display-sub); }
.pk-piece .pk-hero .pa-sub { max-width: 660px; margin-inline: auto; }
.pk-piece .pk-eyebrow { margin-bottom: var(--sp-5); color: var(--ink-inverse-muted); }






.pk-piece .pk-jump {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--sp-4) var(--sp-5);
  margin-top: var(--sp-6);
}
.pk-piece .pk-jump a {
  position: relative;
  color: var(--ink-inverse-muted);
  text-decoration: none;
  
  padding-block: 13px;
  transition: color var(--dur-fast) var(--ease-standard);
}
.pk-piece .pk-jump a:hover { color: var(--ink-inverse); }

.pk-piece .pk-jump a::before {
  content: "";
  position: absolute;
  inset: 0 -9px;
}



.pk-piece .pk-spine {
  position: sticky;
  top: 72px;
  z-index: 40;
  background: var(--surface-base);
  border-bottom: 1px solid var(--rule-strong);
  padding-inline: var(--gutter);
}
.pk-piece .pk-spine-in {
  max-width: var(--container);
  margin-inline: auto;
  height: 64px;
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}
.pk-piece .pk-spine-nav {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  margin-right: auto;
  overflow-x: auto;
  scrollbar-width: none;
}
.pk-piece .pk-spine-nav::-webkit-scrollbar { display: none; }
.pk-piece .pk-spine-nav a {
  white-space: nowrap;
  color: var(--ink-muted);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-standard);
}
.pk-piece .pk-spine-nav a:hover,
.pk-piece .pk-spine-nav a[aria-current="true"] { color: var(--ink-navy); }
.pk-piece .pk-spine .btn { padding: 10px 20px; white-space: nowrap; }



.pk-piece .pk-h { margin: 0; max-width: 900px; }
.pk-piece .pk-lead {
  margin: var(--sp-5) 0 0;
  max-width: 780px;
  color: var(--ink-muted);
}


.pk-piece .pk-note {
  margin: var(--sp-5) 0 0;
  color: var(--ink-navy);
  padding-left: var(--sp-5);
  border-left: 1px solid var(--rule-strong);
}
.pk-piece .pk-note-std {
  margin: var(--sp-7) 0 0;
  color: var(--ink-muted);
  line-height: 1.6;
  max-width: 820px;
}



.pk-piece .pk-diagram {
  margin-top: var(--sp-8);
  
}


.pk-piece .pk-fig-boundary {
  fill: var(--surface-base);
  stroke: var(--ink-navy);
  stroke-width: 1.5;
}
.pk-piece .pk-fig-box {
  fill: var(--surface-raised);
  stroke: var(--rule-strong);
  stroke-width: 1;
}
.pk-piece .pk-fig-out {
  fill: none;
  stroke: var(--rule-strong);
  stroke-width: 1;
}
.pk-piece .pk-fig-t {
  fill: var(--ink-navy);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
}
.pk-piece .pk-fig-t-sm {
  font-size: 13px;
  font-weight: 400;
  fill: var(--ink-muted);
}
.pk-piece .pk-fig-lab {
  fill: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .09em;
}
.pk-piece .pk-fig-lab-in { fill: var(--ink-navy); }

.pk-piece .pk-fig-in-arrow {
  fill: none;
  stroke: var(--rule-strong);
  stroke-width: 1.5;
  stroke-dasharray: 5 4;
}
.pk-piece .pk-fig-head {
  fill: none;
  stroke: var(--rule-strong);
  stroke-width: 1.5;
}

.pk-piece .pk-fig-rule {
  fill: none;
  stroke: var(--rule-strong);
  stroke-width: 1;
}



.pk-piece .pk-qa + .pk-qa > .inner { border-top: 1px solid var(--rule); }
.pk-piece .pk-qa > .inner { padding-block: var(--sp-8); }
.pk-piece .pk-row-q { grid-column: 1 / span 4; grid-row: 1; }
.pk-piece .pk-row-a { grid-column: 6 / span 7; grid-row: 1; }



.pk-piece .pk-q {
  margin: 2px 0 0;
  font-size: 24px;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--ink-navy);
}
.pk-piece .pk-row-a > .t-body { margin: 0 0 var(--sp-5); }
.pk-piece .pk-row-a > .t-body:last-of-type { margin-bottom: 0; }


.pk-piece .pk-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--sp-5);
}

.pk-piece .pk-points {
  gap: var(--sp-6);
  
  margin-block: var(--sp-7);
}

.pk-piece .pk-row-a > .pk-points:first-child { margin-top: 0; }
.pk-piece .pk-points li {
  font-size: var(--size-body);
  line-height: 1.55;
  color: var(--ink);
}

.pk-piece b { font-weight: 600; }



.pk-piece .pk-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-5);
  margin-top: var(--sp-8);
  align-items: stretch;
}
.pk-piece .pk-card {
  background: transparent;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  box-shadow: none;
  padding: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  transition: border-color var(--dur-base) var(--ease-standard);
}
.pk-piece .pk-card:hover,
.pk-piece .pk-card.is-hover { border-color: var(--ink-navy); }

.pk-piece .pk-card-h {
  margin: 0;
  font-size: var(--size-subtitle);
  font-weight: 500;
  line-height: 1.3;
  color: var(--ink-navy);
}
.pk-piece .pk-card-b { margin: 0; color: var(--ink-muted); }



.pk-piece .pc-close-card { grid-template-columns: 380px 1fr; align-items: start; }
.pk-piece .pk-assure {
  margin: var(--sp-6) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--sp-4);
}
.pk-piece .pk-assure li {
  font-size: var(--size-small);
  line-height: 1.5;
  color: var(--ink-inverse-muted);
  padding-left: var(--sp-5);
  border-left: 1px solid var(--rule-deep);
}


.pk-piece {
  --pk-field-rule: rgba(255, 255, 255, 0.40);   
  --pk-field-rule-hi: rgba(255, 255, 255, 0.62);
}
.pk-piece .pk-form { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); margin: 0; }
.pk-piece .pk-field-wide,
.pk-piece .pk-form-send,
.pk-piece .pk-form-err,
.pk-piece .pk-form-trap { grid-column: 1 / -1; }

.pk-piece .pk-form[hidden], .pk-piece .pk-form-done[hidden] { display: none; }

.pk-piece .pk-field { display: grid; gap: var(--sp-2); }
.pk-piece .pk-field label {
  font-family: var(--font-mono);
  font-size: var(--size-label);
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--ink-inverse-muted);
}
.pk-piece .pk-field .opt {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
}
.pk-piece .pk-form :is(input[type="text"], input[type="email"], input[type="tel"], textarea) {
  width: 100%;
  padding: 11px var(--sp-4);       
  font-family: var(--font-display);
  font-size: var(--size-body);     
  color: var(--ink-inverse);
  background: var(--surface-deep);
  border: 1px solid var(--pk-field-rule);
  border-radius: var(--radius);
  transition: border-color var(--dur-fast) var(--ease-standard);
}
.pk-piece .pk-form textarea { resize: vertical; min-height: 88px; line-height: 1.5; }
.pk-piece .pk-form :is(input, textarea)::placeholder { color: var(--ink-inverse-muted); }
.pk-piece .pk-form :is(input, textarea):hover { border-color: var(--pk-field-rule-hi); }

.pk-piece .pk-form-send { justify-content: center; margin-top: var(--sp-2); }
.pk-piece .pk-form-send[disabled] { opacity: .6; cursor: default; }
.pk-piece .pk-form-err {
  margin: 0;
  font-size: var(--size-small);
  color: var(--ink-inverse);
  border-left: 2px solid var(--teal);
  padding-left: var(--sp-4);
}

.pk-piece .pk-form-trap {
  position: absolute; left: -9999px;
  width: 1px; height: 1px; overflow: hidden;
}
.pk-piece .pk-form-done { display: grid; gap: var(--sp-4); justify-items: start; }
.pk-piece .pk-form-done:focus { outline: none; }
.pk-piece .pk-form-done-h {
  margin: 0;
  font-size: var(--size-subtitle);
  font-weight: 500;
  line-height: 1.3;
  color: var(--ink-inverse);
}
.pk-piece .pk-form-done-b {
  margin: 0;
  font-size: var(--size-small);
  line-height: 1.6;
  color: var(--ink-inverse-muted);
}

.pk-piece .pk-routes { margin: var(--sp-5) 0 0; padding: 0; list-style: none; display: grid; gap: var(--sp-3); }
.pk-piece .pk-routes a {
  display: inline-flex;
  align-items: baseline;
  gap: var(--sp-3);
  color: var(--ink-inverse);
  text-decoration: none;
  border-bottom: 1px solid var(--rule-deep);
  padding-bottom: 2px;
  transition: border-color var(--dur-fast) var(--ease-standard);
}
.pk-piece .pk-routes a:hover { border-bottom-color: var(--ink-inverse); }
.pk-piece .pk-routes .k {
  font-family: var(--font-mono);
  font-size: var(--size-label);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-inverse-muted);
  
  display: inline-block;
  min-width: 69px;
}
.pk-piece .pk-routes-lead { margin: var(--sp-6) 0 0; color: var(--ink-inverse-muted); }



.pk-ph {
  padding: 1px 6px;
  border-radius: var(--radius);
  background: rgba(226, 60, 60, .14);
  box-shadow: inset 0 0 0 1px rgba(226, 60, 60, .45);
}



@media (max-width: 1100px) {
  .pk-piece .pk-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  

  
  .pk-piece .pk-jump { gap: var(--sp-3) var(--sp-5); }

  .pk-piece .pk-row-q,
  .pk-piece .pk-row-a { grid-column: 1 / -1; }
  .pk-piece .pk-row-q { grid-row: 1; }
  .pk-piece .pk-row-a { grid-row: 2; margin-top: var(--sp-6); }

  .pk-piece .pc-close-card { grid-template-columns: 1fr; }
  .pk-piece .pk-routes a { padding-block: 11px; }
}
@media (max-width: 620px) {
  .pk-piece .pk-cards { grid-template-columns: 1fr; }
  .pk-piece .pk-form { grid-template-columns: 1fr; }
}





.pk-piece .pk-bd-out { margin-bottom: 0; }
.pk-piece .pk-bd-outlab { margin: 0 0 var(--sp-3); }
.pk-piece .pk-bd-stems {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding-inline: var(--sp-6);
}
.pk-piece .pk-bd-stems .pk-bd-stem { justify-self: center; }
.pk-piece .pk-bd-stem:first-child { grid-column: 1; }
.pk-piece .pk-bd-stem:last-child  { grid-column: 3; }

.pk-piece .pk-bd-stem {
  display: block;
  padding-bottom: 18px;
  position: relative;
}
.pk-piece .pk-bd-stem::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 18px;
  border-left: 1px dashed var(--ink-navy);
  opacity: .5;
}
.pk-piece .pk-bd-chip { display: inline-block; }

.pk-piece .pk-bd-chip {
  margin: 0;
  padding: 7px 13px;
  
  border: 1px dashed rgba(22, 38, 74, .5);
  border-radius: var(--radius);
  
  font-size: var(--size-body);
  color: var(--ink-navy);
}

.pk-piece .pk-bd {
  border: 1.5px solid var(--ink-navy);
  border-radius: var(--radius);
  background: var(--surface-raised);
  padding: var(--sp-5) var(--sp-6) var(--sp-6);
}
.pk-piece .pk-bd-lab { margin: 0; }
.pk-piece .pk-bd-cells {
  position: relative;   
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: var(--sp-5);
}

.pk-piece .pk-bd-cell {
  padding: var(--sp-4) var(--sp-5);
  text-align: center;
}


.pk-piece .pk-bd-arm {
  position: absolute;
  
  top: 43px;
  height: 0;
  border-top: 1.5px solid rgba(22, 38, 74, .55);
}
.pk-piece .pk-bd-arm.left  { left: 26%; right: 62%; }
.pk-piece .pk-bd-arm.right { left: 62%; right: 26%; }
.pk-piece .pk-bd-arm::after {
  content: "";
  position: absolute;
  top: -5px;
  width: 9px;
  height: 9px;
  border-top: 1.5px solid rgba(22, 38, 74, .55);
  border-right: 1.5px solid rgba(22, 38, 74, .55);
}
.pk-piece .pk-bd-arm.left::after  { left: -1px; transform: rotate(-135deg); }
.pk-piece .pk-bd-arm.right::after { right: -1px; transform: rotate(45deg); }
.pk-piece .pk-bd-cell p {
  margin: var(--sp-3) 0 0;
  font-size: var(--size-body);
  color: var(--ink-navy);
}
.pk-piece .pk-bd .pk-bd-ic {
  display: block;
  width: 64px;
  height: 54px;
  margin: 0 auto;
  fill: none;
  stroke: var(--ink-navy);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.pk-piece .pk-bd-ic .f { fill: var(--ink-navy); stroke: none; }
.pk-piece .pk-bd-hand {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--sp-4);
  margin-top: var(--sp-5);
  padding-top: var(--sp-4);
  border-top: 1px solid rgba(22, 38, 74, .12);
}
.pk-piece .pk-bd-hand p { margin: 0; }
.pk-piece .pk-bd-hand p:last-child {
  font-size: var(--size-small);
  color: var(--ink);
}
@media (max-width: 620px) {
  
  .pk-piece .pk-bd-cells { grid-template-columns: 1fr; }
  
  .pk-piece .pk-bd-arm { display: none; }
  .pk-piece .pk-bd-cell + .pk-bd-cell {
    border-left: 0;
    border-top: 1px solid rgba(22, 38, 74, .12);
  }
}