/* KRSS ACADEMY LTD — Unit 2 Govan Road, Fenton.
   Warm sand floor, slab headings, stacked panels, four session zones. */

:root {
  --krs-bg: #f3ead9;
  --krs-ink: #2a2519;
  --krs-accent: #b6471f;
  --krs-accent2: #3f6b4e;
  --krs-surface: #fffdf6;

  --krs-ink-10: rgba(42, 37, 25, 0.10);
  --krs-ink-18: rgba(42, 37, 25, 0.18);
  --krs-ink-28: rgba(42, 37, 25, 0.28);
  --krs-ink-55: rgba(42, 37, 25, 0.55);
  --krs-ink-72: rgba(42, 37, 25, 0.72);
  --krs-acc-12: rgba(182, 71, 31, 0.12);
  --krs-acc-35: rgba(182, 71, 31, 0.35);
  --krs-acc-60: rgba(182, 71, 31, 0.60);
  --krs-grn-16: rgba(63, 107, 78, 0.16);
  --krs-grn-50: rgba(63, 107, 78, 0.50);

  --krs-display: "Big Shoulders Display", "Arial Narrow", "Haettenschweiler", sans-serif;
  --krs-body: "Catamaran", "Segoe UI", system-ui, sans-serif;

  --krs-bay: 0.5rem;            /* the spacing unit: one bay */
  --krs-headh: 4.5rem;
  --krs-railh: 4rem;
  --krs-max: 74rem;
  --krs-gutter: 1.1rem;
}

/* reset: zero the box metrics, declare the focus ring, stop there */
* { margin: 0; padding: 0 }
:focus-visible { outline: 3px solid var(--krs-accent); outline-offset: 3px }

html {
  background: var(--krs-bg);
  color: var(--krs-ink);
  font-family: var(--krs-body);
  font-size: 100%;
  line-height: 1.58;
  -webkit-text-size-adjust: 100%;
}
html.krs-snap {
  scroll-snap-type: y proximity;
  scroll-padding-top: calc(var(--krs-headh) + var(--krs-railh));
  scroll-behavior: smooth;
}
.krs-body { max-width: 100% }

p, li, dd, dt, address { font-size: 1rem }
b, strong { font-weight: 600 }
address { font-style: normal }
svg { display: block }
ul, ol { list-style: none }

a { color: var(--krs-ink); text-decoration-color: var(--krs-acc-60); text-underline-offset: 0.18em }
a:hover { color: var(--krs-accent) }

/* ---------------------------------------------------------- header + dropdown panel */
.krs-head {
  box-sizing: border-box;
  position: sticky;
  top: 0;
  z-index: 40;
  min-height: var(--krs-headh);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--krs-bay);
  padding: 0.55rem var(--krs-gutter);
  background: var(--krs-ink);
  color: var(--krs-bg);
  border-bottom: 0.28rem solid var(--krs-accent);
}
.krs-head__mark { display: flex; flex-direction: column; line-height: 1.12; min-width: 0 }
.krs-head__mark strong,
.krs-head__mark a {
  font-family: var(--krs-display);
  font-size: clamp(1.1rem, 4.6vw, 1.55rem);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--krs-bg);
  text-decoration: none;
  transition: color 0.2s ease;
}
.krs-head__mark a:hover { color: var(--krs-accent) }
.krs-head__mark span {
  font-size: 0.67rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(243, 234, 217, 0.72);
}

.krs-nav { position: relative; flex: none }
.krs-nav__control {
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 2.6rem;
  padding: 0 0.85rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--krs-display);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--krs-ink);
  background: var(--krs-bg);
  border: 0.14rem solid var(--krs-bg);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.krs-nav__control::-webkit-details-marker { display: none }
.krs-nav__control:hover { background: var(--krs-accent); color: var(--krs-surface); border-color: var(--krs-accent) }
.krs-nav__chev {
  width: 0.62rem;
  height: 0.62rem;
  border-right: 0.14rem solid currentColor;
  border-bottom: 0.14rem solid currentColor;
  transform: rotate(45deg) translateY(-0.1rem);
  transition: transform 0.22s ease;
}
.krs-nav[open] .krs-nav__chev { transform: rotate(-135deg) translateY(-0.1rem) }
.krs-nav[open] .krs-nav__control { background: var(--krs-accent); color: var(--krs-surface); border-color: var(--krs-accent) }

.krs-nav__panel {
  position: absolute;
  z-index: 41;
  top: calc(100% + 0.55rem);
  right: 0;
  width: max-content;
  max-width: min(21rem, calc(100vw - 1.6rem));
  padding: 0.9rem 1rem 1rem;
  background: var(--krs-surface);
  color: var(--krs-ink);
  border: 0.14rem solid var(--krs-ink);
  box-shadow: 0.42rem 0.42rem 0 0 var(--krs-accent2);
  animation: krs-nav-drop 0.22s ease-out both;
}
.krs-nav__kicker {
  font-family: var(--krs-display);
  font-size: 0.82rem;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--krs-accent);
  padding-bottom: 0.2rem;
  border-bottom: 0.1rem solid var(--krs-ink-18);
  margin-bottom: 0.4rem;
}
.krs-nav__kicker + .krs-nav__list { margin-bottom: 1rem }
.krs-nav__list li + li { border-top: 1px solid var(--krs-ink-10) }
.krs-nav__list a {
  display: block;
  padding: 0.44rem 0.3rem 0.44rem 0.7rem;
  font-size: 0.95rem;
  text-decoration: none;
  border-left: 0.22rem solid transparent;
  transition: background 0.18s ease, border-left-color 0.18s ease, padding-left 0.18s ease;
}
.krs-nav__list a:hover { background: var(--krs-acc-12); border-left-color: var(--krs-accent); padding-left: 0.95rem }
.krs-nav__list a[aria-current="page"] {
  border-left-color: var(--krs-accent2);
  background: var(--krs-grn-16);
  font-weight: 600;
}

/* ---------------------------------------------------------- page frame */
.krs-main {
  box-sizing: border-box;
  display: block;
  max-width: var(--krs-max);
  margin: 0 auto;
  padding: 1.6rem var(--krs-gutter) 3rem;
}
.krs-main > section { margin-bottom: 2.9rem }

/* slab headings: the type sits on a rule, with a second rule under it */
.krs-h1 {
  font-family: var(--krs-display);
  font-weight: 700;
  font-size: clamp(2rem, 8.6vw, 4.1rem);
  line-height: 0.92;
  text-transform: uppercase;
  letter-spacing: 0.004em;
  padding-bottom: 0.1em;
  border-bottom: 0.26rem solid var(--krs-ink);
  box-shadow: 0 0.42rem 0 0 var(--krs-accent);
  margin-bottom: 1.5rem;
}
.krs-h2 {
  font-family: var(--krs-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 5.4vw, 2.4rem);
  line-height: 0.96;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  padding-bottom: 0.08em;
  border-bottom: 0.24rem solid var(--krs-accent);
  margin-bottom: 0.95rem;
}
.krs-h3 {
  font-family: var(--krs-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 4.4vw, 1.6rem);
  line-height: 1.02;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding-left: 0.6rem;
  border-left: 0.3rem solid var(--krs-accent2);
  margin: 1.7rem 0 0.6rem;
}
.krs-lead { font-size: 1.1rem; max-width: 42rem }
.krs-note {
  font-size: 0.86rem;
  max-width: 46rem;
  color: var(--krs-ink-72);
  padding-left: 0.7rem;
  border-left: 0.18rem solid var(--krs-ink-18);
  margin-top: 0.9rem;
}

/* diagonal stripe: the texture of taped-out floor markings */
.krs-stripe {
  background-image: repeating-linear-gradient(
    135deg,
    rgba(42, 37, 25, 0.055) 0 0.35rem,
    rgba(0, 0, 0, 0) 0.35rem 0.95rem
  );
}

/* stacked panels: a sheet with a second sheet showing behind it */
.krs-panel {
  box-sizing: border-box;
  background: var(--krs-surface);
  border: 0.13rem solid var(--krs-ink);
  box-shadow: 0.34rem 0.34rem 0 0 var(--krs-ink-18);
  padding: 1.05rem 1.05rem 1.15rem;
  transition: box-shadow 0.24s ease, transform 0.24s ease;
}
.krs-panel > p + p,
.krs-panel > ul + p,
.krs-panel > p + ul { margin-top: 0.75rem }

/* ---------------------------------------------------------- opener + isometric floor */
.krs-opener__text { margin-bottom: 1.4rem }
.krs-opener__sub { margin-top: 0.9rem; max-width: 42rem; color: var(--krs-ink-72) }

.krs-floorwrap {
  box-sizing: border-box;
  border: 0.13rem solid var(--krs-ink);
  box-shadow: 0.5rem 0.5rem 0 0 var(--krs-accent2);
  background-color: var(--krs-surface);
  padding: 0.9rem;
  animation: krs-floor-settle 0.6s ease-out both;
}
.krs-floor { width: 100%; height: auto; max-width: 34rem; margin: 0 auto }
.krs-floor__walls polygon { fill: var(--krs-ink-18); stroke: var(--krs-ink-28); stroke-width: 1 }
.krs-floor__wall--left { fill: var(--krs-ink-10) }
.krs-floor__slab { fill: var(--krs-surface); stroke: var(--krs-ink); stroke-width: 1.6 }
.krs-floor__grid path { fill: none; stroke: var(--krs-ink-10); stroke-width: 1 }

.krs-zone {
  fill: rgba(42, 37, 25, 0.07);
  stroke: var(--krs-ink-28);
  stroke-width: 1;
  animation: krs-zone-light 0.72s ease-out both;
  transition: fill 0.34s ease, stroke 0.34s ease, stroke-width 0.34s ease;
}
.krs-zone--warmup { animation-delay: 0.2s }
.krs-zone--skill { animation-delay: 0.58s }
.krs-zone--game { animation-delay: 0.96s }
.krs-zone--cooldown { animation-delay: 1.34s }

[data-krs-zone="warmup"] .krs-zone--warmup,
[data-krs-zone="skill"] .krs-zone--skill,
[data-krs-zone="game"] .krs-zone--game,
[data-krs-zone="cooldown"] .krs-zone--cooldown {
  fill: rgba(182, 71, 31, 0.42);
  stroke: var(--krs-accent);
  stroke-width: 2.4;
}

.krs-floor__props { animation: krs-prop-in 0.5s ease-out 1.6s both }
.krs-floor__cone { fill: var(--krs-accent) }
.krs-floor__rung { fill: none; stroke: var(--krs-accent2); stroke-width: 1.4 }
.krs-floor__goal { fill: var(--krs-ink-18); stroke: var(--krs-ink); stroke-width: 1.2 }
.krs-floor__centre { fill: none; stroke: var(--krs-ink-28); stroke-width: 1; stroke-dasharray: 4 4 }
.krs-floor__mat { fill: var(--krs-grn-16); stroke: var(--krs-accent2); stroke-width: 1 }
.krs-floor__bench { fill: var(--krs-ink-28) }
.krs-floor__roller { fill: var(--krs-accent); stroke: var(--krs-ink); stroke-width: 1 }
.krs-floor__door { fill: var(--krs-surface); stroke: var(--krs-ink); stroke-width: 1 }
.krs-floor__office { fill: var(--krs-accent2); stroke: var(--krs-ink); stroke-width: 1 }

.krs-floor__labels { animation: krs-prop-in 0.5s ease-out 1.75s both }
.krs-floor__labels text {
  font-family: var(--krs-display);
  font-size: 13px;
  letter-spacing: 0.1em;
  fill: var(--krs-ink);
  stroke: var(--krs-surface);
  stroke-width: 3.4;
  paint-order: stroke fill;
}
.krs-floor__note {
  font-family: var(--krs-body) !important;
  font-size: 9.5px !important;
  letter-spacing: 0.04em !important;
  fill: var(--krs-ink-72) !important;
  stroke-width: 2.6 !important;
}

.krs-floorcap { margin-top: 0.9rem }
.krs-floorcap > p { font-size: 0.92rem; max-width: 40rem }
.krs-zonebar { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.95rem 0 0.7rem }
.krs-zonebtn {
  box-sizing: border-box;
  font-family: var(--krs-display);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--krs-ink);
  background: var(--krs-bg);
  border: 0.13rem solid var(--krs-ink);
  padding: 0.34rem 0.7rem;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.14s ease, box-shadow 0.2s ease;
}
.krs-zonebtn:hover { background: var(--krs-ink); color: var(--krs-bg) }
.krs-zonebtn:active { transform: translate(1px, 1px) }
.krs-zonebtn[aria-pressed="true"] {
  background: var(--krs-accent);
  color: var(--krs-surface);
  border-color: var(--krs-accent);
  box-shadow: 0.2rem 0.2rem 0 0 var(--krs-ink);
}
.krs-zonebtn--step { margin-left: auto; border-style: dashed }
.krs-zonecap {
  font-size: 0.95rem;
  padding: 0.6rem 0.75rem;
  background: var(--krs-bg);
  border-left: 0.26rem solid var(--krs-accent2);
}

/* ---------------------------------------------------------- the chapter strip + rail */
.krs-strip { position: relative }
.krs-strip__head { margin-bottom: 0.6rem }
.krs-strip__note { font-size: 0.92rem; color: var(--krs-ink-72); max-width: 38rem }

.krs-rail {
  box-sizing: border-box;
  position: sticky;
  top: var(--krs-headh);
  z-index: 20;
  min-height: var(--krs-railh);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.4rem 0.5rem 0.5rem;
  background: var(--krs-bg);
  border-bottom: 0.13rem solid var(--krs-ink-18);
}
.krs-rail__track { display: block; height: 0.3rem; background: var(--krs-ink-10) }
.krs-rail__fill {
  display: block;
  height: 100%;
  background: var(--krs-accent);
  transform-origin: 0 50%;
  transform: scaleX(0.04);
}
.krs-rail__list { display: flex; gap: 0.3rem }
.krs-rail__dot {
  box-sizing: border-box;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 0.28rem;
  align-items: center;
  min-width: 0;
  padding: 0.24rem 0.32rem;
  text-decoration: none;
  color: var(--krs-ink-72);
  background: var(--krs-ink-10);
  border-bottom: 0.18rem solid var(--krs-ink-18);
  transition: background 0.22s ease, color 0.22s ease, border-bottom-color 0.22s ease;
}
.krs-rail__list > li { display: grid; flex: 1 1 0; min-width: 0 }
.krs-rail__dot b {
  grid-row: 1 / span 2;
  font-family: var(--krs-display);
  font-size: 1.25rem;
  line-height: 0.9;
}
.krs-rail__dot span {
  grid-column: 2;
  min-width: 0;
  font-family: var(--krs-display);
  font-size: 0.78rem;
  line-height: 1.1;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.krs-rail__dot em {
  grid-column: 2;
  min-width: 0;
  font-size: 0.66rem;
  font-style: normal;
  line-height: 1.1;
  white-space: nowrap;
  overflow: hidden;
}
.krs-rail__dot:hover { background: var(--krs-acc-12); color: var(--krs-ink); border-bottom-color: var(--krs-accent) }

/* clicking a rail link marks its chapter with a ring — a property no animation touches,
   so the marker survives next to the scroll-driven colour change */
.krs-strip:has(#warmup:target) .krs-rail__dot--warmup,
.krs-strip:has(#skill:target) .krs-rail__dot--skill,
.krs-strip:has(#game:target) .krs-rail__dot--game,
.krs-strip:has(#cooldown:target) .krs-rail__dot--cooldown {
  box-shadow: 0 0 0 0.19rem var(--krs-grn-50);
}
.krs-chapter:target .krs-chapter__tag { background: var(--krs-accent) }

.krs-chapter {
  scroll-snap-align: start;
  min-height: calc(100svh - var(--krs-headh) - var(--krs-railh));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1.6rem 0 2rem;
}
.krs-chapter__tag {
  align-self: flex-start;
  font-family: var(--krs-display);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--krs-bg);
  background: var(--krs-ink);
  padding: 0.16rem 0.6rem;
  margin-bottom: 0.5rem;
  transition: background 0.24s ease;
}
.krs-chapter__clock {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  font-family: var(--krs-display);
  line-height: 0.78;
  color: var(--krs-accent);
  margin-bottom: 0.45rem;
}
.krs-chapter__clock b { font-size: clamp(2.6rem, 11vw, 5.4rem); font-weight: 700 }
.krs-chapter__clock span {
  font-size: 0.86rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--krs-ink-72);
}
.krs-chapter__head { display: block }
.krs-chapter__body { max-width: 44rem }
.krs-chapter:nth-of-type(even) .krs-chapter__body { box-shadow: 0.34rem 0.34rem 0 0 var(--krs-grn-16) }

/* ---------------------------------------------------------- widgets */
.krs-planner__grid { display: block }
.krs-planner__intro { margin-bottom: 1.3rem }
.krs-planner__intro > p + p { margin-top: 0.7rem }
.krs-fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8.6rem, 1fr));
  gap: 0.6rem;
  margin-top: 1.1rem;
}
.krs-field { display: flex; flex-direction: column; gap: 0.2rem; min-width: 0 }
.krs-field > span {
  font-family: var(--krs-display);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--krs-ink-72);
}
.krs-field input,
.krs-field textarea {
  box-sizing: border-box;
  width: 100%;
  font-family: var(--krs-body);
  font-size: 1rem;
  color: var(--krs-ink);
  background: var(--krs-surface);
  border: 0.13rem solid var(--krs-ink-28);
  padding: 0.4rem 0.5rem;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.krs-field textarea { min-height: 7.2rem; line-height: 1.45; resize: vertical }
.krs-field input:hover,
.krs-field textarea:hover { border-color: var(--krs-ink-55) }
.krs-field input:focus,
.krs-field textarea:focus { border-color: var(--krs-accent); box-shadow: inset 0 -0.18rem 0 0 var(--krs-acc-35) }
.krs-field--wide { grid-column: 1 / -1 }

.krs-work__title {
  font-family: var(--krs-display);
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-bottom: 0.25rem;
  border-bottom: 0.16rem solid var(--krs-ink);
  margin-bottom: 0.6rem;
}
.krs-work__row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.8rem;
  justify-content: space-between;
  padding: 0.3rem 0;
  border-bottom: 1px dotted var(--krs-ink-28);
  font-size: 0.96rem;
}
.krs-work__row span { color: var(--krs-ink-72) }
.krs-work__row b { font-variant-numeric: tabular-nums }
.krs-work__sum {
  font-size: 0.96rem;
  font-weight: 600;
  padding: 0.45rem 0.6rem;
  margin: 0.5rem 0;
  background: var(--krs-grn-16);
  border-left: 0.26rem solid var(--krs-accent2);
}
.krs-work__warn {
  font-size: 0.92rem;
  padding: 0.45rem 0.6rem;
  margin: 0.5rem 0;
  background: var(--krs-acc-12);
  border-left: 0.26rem solid var(--krs-accent);
}
.krs-work__note { font-size: 0.88rem; color: var(--krs-ink-72); margin-top: 0.35rem }

.krs-bars { width: 100%; height: auto; margin-top: 1rem }
.krs-bars__row rect { fill: var(--krs-accent); transition: width 0.3s ease }
.krs-bars__row:nth-child(2) rect { fill: var(--krs-accent2) }
.krs-bars__row:nth-child(3) rect { fill: var(--krs-ink-55) }
.krs-bars__row:nth-child(4) rect { fill: var(--krs-ink-28) }
.krs-bars__key {
  font-family: var(--krs-display);
  font-size: 11px;
  letter-spacing: 0.08em;
  fill: var(--krs-ink);
}
.krs-bars__val { font-family: var(--krs-body); font-size: 11px; fill: var(--krs-ink-72) }

/* ---------------------------------------------------------- audience panels, lists */
.krs-doors__stack { display: grid; gap: 1.1rem }
.krs-door__h {
  font-family: var(--krs-display);
  font-size: clamp(1.15rem, 4.2vw, 1.5rem);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 1.04;
  padding-bottom: 0.2rem;
  margin-bottom: 0.55rem;
  border-bottom: 0.16rem solid var(--krs-accent);
}
.krs-door:nth-child(2) .krs-door__h { border-bottom-color: var(--krs-accent2) }
.krs-door:hover { transform: translate(-2px, -2px); box-shadow: 0.52rem 0.52rem 0 0 var(--krs-ink-18) }

.krs-defs { display: grid; gap: 0.1rem; max-width: 58rem }
.krs-reg__p { max-width: 46rem }
.krs-reg__p + .krs-reg__p { margin-top: 0.7rem }
.krs-sheet > p, .krs-sheet > ul, .krs-callout > p, .krs-steps p { max-width: 46rem }
.krs-sheet, .krs-callout, .krs-steps { max-width: 58rem }
.krs-defs dt {
  font-family: var(--krs-display);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--krs-accent);
  padding-top: 0.7rem;
  border-top: 0.13rem solid var(--krs-ink-18);
}
.krs-defs dd { padding-bottom: 0.6rem }
.krs-defs--week dt { color: var(--krs-ink) }

.krs-steps { counter-reset: krs-step; display: grid; gap: 0.9rem }
.krs-steps > li {
  box-sizing: border-box;
  display: grid;
  grid-template-columns: 2.6rem 1fr;
  gap: 0.2rem 0.75rem;
  align-items: start;
  padding: 0.75rem 0.85rem;
  background: var(--krs-surface);
  border: 0.13rem solid var(--krs-ink-18);
  border-left: 0.3rem solid var(--krs-accent);
  transition: border-left-color 0.2s ease, background 0.2s ease;
}
.krs-steps > li:hover { border-left-color: var(--krs-accent2); background: var(--krs-bg) }
.krs-steps > li::before {
  counter-increment: krs-step;
  content: counter(krs-step);
  grid-row: 1 / span 2;
  font-family: var(--krs-display);
  font-size: 2.1rem;
  line-height: 0.82;
  color: var(--krs-accent);
}
.krs-steps h3 {
  font-family: var(--krs-display);
  font-size: 1.12rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.krs-steps p { font-size: 0.96rem }

.krs-callout {
  box-sizing: border-box;
  padding: 0.95rem 1rem;
  background: var(--krs-surface);
  border: 0.13rem dashed var(--krs-ink-55);
  margin: 1.3rem 0;
}
.krs-callout h3 {
  font-family: var(--krs-display);
  font-size: 1.1rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}
.krs-callout p + p { margin-top: 0.6rem }

.krs-bullets { display: grid; gap: 0.45rem; margin: 0.8rem 0 }
.krs-bullets > li {
  padding-left: 1.45rem;
  position: relative;
  font-size: 0.98rem;
}
.krs-bullets > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 0.62rem;
  height: 0.62rem;
  background: var(--krs-accent2);
  transform: rotate(45deg);
}

/* ---------------------------------------------------------- sub-page shell */
.krs-pagehead { margin-bottom: 1.8rem }
.krs-kicker {
  font-family: var(--krs-display);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--krs-accent);
  margin-bottom: 0.4rem;
}
.krs-prose { max-width: 44rem }
.krs-prose > p + p { margin-top: 0.8rem }
.krs-prose h2 { margin-top: 2rem }
.krs-prose h2:first-child { margin-top: 0 }
.krs-sheet {
  box-sizing: border-box;
  background: var(--krs-surface);
  border: 0.13rem solid var(--krs-ink);
  box-shadow: 0.42rem 0.42rem 0 0 var(--krs-acc-12);
  padding: 1.1rem 1.1rem 1.3rem;
}
.krs-sheet + .krs-sheet { margin-top: 1.2rem }
.krs-grid2 { display: grid; gap: 1.1rem }
.krs-mini { width: 100%; height: auto; max-width: 30rem; margin: 1.1rem 0 }
.krs-mini text { font-family: var(--krs-body); font-size: 10px; fill: var(--krs-ink-72) }
.krs-mini .krs-mini__key {
  font-family: var(--krs-display);
  font-size: 12px;
  letter-spacing: 0.08em;
  fill: var(--krs-ink);
}
.krs-mini__bar { fill: var(--krs-acc-35); stroke: var(--krs-accent); stroke-width: 1.2 }
.krs-mini__bar--alt { fill: var(--krs-grn-16); stroke: var(--krs-accent2) }
.krs-mini__rule { fill: none; stroke: var(--krs-ink-28); stroke-width: 1 }
.krs-mini__box { fill: var(--krs-bg); stroke: var(--krs-ink); stroke-width: 1.3 }
.krs-mini__door { fill: var(--krs-accent) }
.krs-mini__door--ped { fill: var(--krs-accent2) }
.krs-mini__road { fill: var(--krs-ink-18) }

.krs-crumb { margin-bottom: 1rem; font-size: 0.88rem; letter-spacing: 0.02em }
.krs-crumb a { text-decoration-thickness: 0.08em }
.krs-onward {
  display: grid;
  gap: 0.5rem;
  margin-top: 1.8rem;
  padding-top: 1rem;
  border-top: 0.24rem solid var(--krs-ink);
}
.krs-onward a {
  display: block;
  padding: 0.55rem 0.7rem;
  background: var(--krs-surface);
  border-left: 0.26rem solid var(--krs-accent);
  text-decoration: none;
  font-size: 0.98rem;
  transition: transform 0.18s ease, border-left-color 0.18s ease, box-shadow 0.18s ease;
}
.krs-onward a:hover { transform: translateX(3px); border-left-color: var(--krs-accent2); box-shadow: 0.2rem 0.2rem 0 0 var(--krs-ink-10) }
.krs-onward a b { font-family: var(--krs-display); letter-spacing: 0.05em; text-transform: uppercase }

/* ---------------------------------------------------------- footer */
.krs-foot {
  background: var(--krs-ink);
  color: rgba(243, 234, 217, 0.86);
  border-top: 0.42rem solid var(--krs-accent);
  padding: 1.8rem var(--krs-gutter) 2.2rem;
}
.krs-foot__grid {
  box-sizing: border-box;
  display: grid;
  gap: 1.4rem;
  max-width: var(--krs-max);
  margin: 0 auto;
}
.krs-foot__h {
  font-family: var(--krs-display);
  font-size: 1rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--krs-surface);
  padding-bottom: 0.3rem;
  margin-bottom: 0.55rem;
  border-bottom: 0.13rem solid rgba(243, 234, 217, 0.28);
}
.krs-foot__addr { font-size: 0.95rem; line-height: 1.75 }
.krs-foot__line { font-size: 0.92rem; line-height: 1.7 }
.krs-foot__line--muted { color: rgba(243, 234, 217, 0.6); margin-top: 0.5rem }
.krs-foot a { color: var(--krs-surface); transition: color 0.2s ease, text-decoration-color 0.2s ease }
.krs-foot a:hover { color: var(--krs-accent) }

/* ---------------------------------------------------------- motion */
@keyframes krs-zone-light {
  0% { opacity: 0; transform: translateY(-7px) }
  58% { opacity: 1; transform: translateY(0) }
  100% { opacity: 1; transform: translateY(0) }
}
@keyframes krs-prop-in {
  from { opacity: 0 }
  to { opacity: 1 }
}
@keyframes krs-floor-settle {
  from { opacity: 0; transform: translateY(0.7rem) }
  to { opacity: 1; transform: translateY(0) }
}
@keyframes krs-nav-drop {
  from { opacity: 0; transform: translateY(-0.5rem) }
  to { opacity: 1; transform: translateY(0) }
}
@keyframes krs-rail-fill {
  from { transform: scaleX(0.04) }
  to { transform: scaleX(1) }
}
@keyframes krs-rail-dot {
  0%, 100% { background: var(--krs-ink-10); color: var(--krs-ink-72); border-bottom-color: var(--krs-ink-18) }
  34%, 66% { background: var(--krs-accent); color: var(--krs-surface); border-bottom-color: var(--krs-ink) }
}

/* the reveal: the rail is driven by the scroll position of the strip itself.
   No script reads scrollTop anywhere on this site. */
@supports (animation-timeline: view()) {
  .krs-strip {
    view-timeline-name: --krs-strip;
    view-timeline-axis: block;
    timeline-scope: --krs-ch-warmup, --krs-ch-skill, --krs-ch-game, --krs-ch-cooldown;
  }
  #warmup { view-timeline-name: --krs-ch-warmup }
  #skill { view-timeline-name: --krs-ch-skill }
  #game { view-timeline-name: --krs-ch-game }
  #cooldown { view-timeline-name: --krs-ch-cooldown }
  .krs-rail__fill {
    animation: krs-rail-fill linear both;
    animation-timeline: --krs-strip;
    animation-range: cover 2% cover 96%;
  }
  .krs-rail__dot {
    animation: krs-rail-dot linear both;
    animation-range: cover 0% cover 100%;
  }
  .krs-rail__dot--warmup { animation-timeline: --krs-ch-warmup }
  .krs-rail__dot--skill { animation-timeline: --krs-ch-skill }
  .krs-rail__dot--game { animation-timeline: --krs-ch-game }
  .krs-rail__dot--cooldown { animation-timeline: --krs-ch-cooldown }
}

/* ---------------------------------------------------------- wider floors */
@media (min-width: 46rem) {
  :root { --krs-headh: 4rem; --krs-railh: 4.4rem; --krs-gutter: 1.6rem }
  .krs-doors__stack { grid-template-columns: 1fr 1fr; align-items: start }
  .krs-grid2 { grid-template-columns: 1fr 1fr; align-items: start }
  .krs-defs { grid-template-columns: 13rem 1fr; gap: 0 1.2rem }
  .krs-defs dt { padding-top: 0.75rem }
  .krs-defs dd { padding-top: 0.75rem; border-top: 0.13rem solid var(--krs-ink-18) }
  .krs-foot__grid { grid-template-columns: 1.2fr 1fr 1fr }
  .krs-rail__dot { padding: 0.3rem 0.55rem; column-gap: 0.4rem }
  .krs-rail__dot span { font-size: 0.92rem; letter-spacing: 0.06em }
  .krs-rail__dot em { font-size: 0.72rem }
  .krs-rail__dot b { font-size: 1.5rem }
  .krs-onward { grid-template-columns: 1fr 1fr }
}

@media (min-width: 64rem) {
  :root { --krs-gutter: 2.2rem }
  .krs-opener {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 2rem;
    align-items: start;
  }
  .krs-opener__text { margin-bottom: 0 }
  .krs-floor { max-width: none }
  .krs-planner__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 1.8rem;
    align-items: start;
  }
  .krs-chapter {
    display: grid;
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    column-gap: 2.6rem;
    align-items: center;
    justify-content: center;
  }
  .krs-chapter .krs-h2 { margin-top: 1rem; margin-bottom: 0 }
  .krs-chapter__body { max-width: none }
  .krs-planner__intro { margin-bottom: 0 }
  .krs-prose { font-size: 1.04rem }
}

/* ---------------------------------------------------------- reduced motion:
   the set-piece lands finished — every zone lit, the rail full, nothing travelling */
@media (prefers-reduced-motion: reduce) {
  html.krs-snap { scroll-behavior: auto; scroll-snap-type: none }
  *, *::before, *::after {
    animation-duration: 1ms !important;
    animation-delay: 0ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    transition-delay: 0ms !important;
  }
  .krs-floorwrap,
  .krs-floor__props,
  .krs-floor__labels { animation: none !important; opacity: 1 !important; transform: none !important }
  .krs-nav__panel { animation: none !important }
  .krs-zone {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
    fill: rgba(182, 71, 31, 0.3) !important;
    stroke: var(--krs-accent) !important;
  }
  [data-krs-zone="warmup"] .krs-zone--warmup,
  [data-krs-zone="skill"] .krs-zone--skill,
  [data-krs-zone="game"] .krs-zone--game,
  [data-krs-zone="cooldown"] .krs-zone--cooldown {
    fill: rgba(182, 71, 31, 0.56) !important;
    stroke-width: 2.6 !important;
  }
  .krs-rail__fill { animation: none !important; transform: scaleX(1) !important }
  .krs-rail__dot { animation: none !important }
  .krs-door:hover, .krs-onward a:hover { transform: none }
}