/* How I Work — depth-notebook + case-study touches */

body.hiw {
  --hiw-prose: min(42rem, 100%);
  --hiw-content-w: calc(min(var(--width-site), 100vw) - 4rem);
  --hiw-prose-inset: max(0px, calc((var(--hiw-content-w) - var(--hiw-prose)) / 2));
  --hiw-score-depth: 3px;
  --hiw-score-hi: rgba(255, 255, 255, 0.55);
  --hiw-threshold-offset: 1.35rem;
  max-width: 100%;
}

html:has(body.hiw) {
  overflow-x: hidden;
}

.hiw-practice-index {
  margin-bottom: var(--space-lg);
}

.hiw-practice-index ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem 2rem;
}

.hiw-practice-index li + li {
  margin-top: 0;
}

.hiw-practice-index a {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0 0.65rem;
  align-items: baseline;
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

.hiw-practice-index a:hover {
  color: var(--depth-pin);
}

.hiw-practice-index__num {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-ink-faint);
}

.hiw-practice-index__name {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  line-height: 1.35;
  color: var(--depth-ink-soft);
}

.hiw-practice-index a:hover .hiw-practice-index__name {
  color: var(--color-ink);
}

@media (max-width: 768px) {
  .hiw-practice-index ol {
    grid-template-columns: 1fr 1fr;
    gap: 0.85rem 1.5rem;
  }
}

/* ——— Practice sections ——— */

body.hiw .depth-field {
  padding-bottom: 0;
}

.hiw-epilogue.story-band {
  padding-top: 0;
}

.hiw-practice {
  position: relative;
  padding-top: 5.5rem;
}

.hiw .depth-field > .hiw-practice:first-child {
  border-top: none;
}

.hiw-practice__head {
  position: relative;
  max-width: 44rem;
}

.hiw-practice__watermark {
  position: absolute;
  top: -1.5rem;
  left: -0.15rem;
  font-family: var(--font-serif);
  font-size: clamp(5rem, 14vw, 8rem);
  font-weight: 500;
  line-height: 1;
  color: var(--depth-pin);
  opacity: 0.1;
  pointer-events: none;
  user-select: none;
}

.hiw-sheet__deck {
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.45;
  color: var(--depth-aside);
  margin: 0;
  max-width: 38rem;
}

.hiw-sheet__deck em {
  font-style: italic;
}

.hiw-threshold {
  position: absolute;
  top: var(--hiw-threshold-offset);
  left: var(--case-gutter, 2rem);
  right: var(--case-gutter, 2rem);
  height: calc(1px + var(--hiw-score-depth));
  transform: scaleX(var(--hiw-score-scale, 0));
  transform-origin: center center;
  background: linear-gradient(
    to bottom,
    var(--hiw-score-hi) 0,
    var(--hiw-score-hi) 1px,
    var(--color-ink) 1px,
    var(--color-ink) calc(1px + var(--hiw-score-depth))
  );
  pointer-events: none;
}

.hiw-tight-prose {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  line-height: 1.55;
  color: var(--depth-ink-soft);
  max-width: var(--hiw-prose);
}

.hiw-tight-prose--inset {
  margin-left: var(--hiw-prose-inset);
}

.hiw-tight-prose p {
  margin: 0 0 0.75em;
}

.hiw-tight-prose p:last-child {
  margin-bottom: 0;
}

.hiw-kicker {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--depth-pin);
  margin: 2.5rem 0 0.85rem var(--hiw-prose-inset);
  max-width: var(--hiw-prose);
}

.hiw-kicker:first-child {
  margin-top: 0;
}

#designing-the-design,
#self-disruptive-flows {
  scroll-margin-top: calc(var(--play-ribbon-h, 0px) + var(--cx-shell-header-h, 5.111rem) + 2.5rem);
}

/* ——— Diagrams ——— */

.hiw-stack-diagram,
.hiw-flow-diagram {
  margin: 0 auto 1.5rem;
  padding: 0;
  max-width: none;
  width: 100%;
  background: none;
  border: none;
}

.hiw-stack-diagram {
  max-width: 28rem;
}

.hiw-flow-diagram {
  max-width: 28rem;
  margin-bottom: 0;
}

.hiw-flow-diagram--trail {
  max-width: 32rem;
  margin-top: 0.35rem;
}

.hiw-flow-diagram + .hiw-tight-prose {
  margin-top: -1.15rem;
}

.hiw-flow-diagram--trail + .hiw-tight-prose {
  margin-top: -0.5rem;
}

.hiw-stack-diagram svg,
.hiw-flow-diagram svg,
.hiw-stack-diagram img,
.hiw-flow-diagram img {
  display: block;
  width: 100%;
  height: auto;
}

.hiw-stack-diagram__layer {
  cursor: default;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.hiw-stack-diagram.is-interactive .hiw-stack-diagram__layer:not(.is-active) {
  opacity: 0.55;
}

.hiw-stack-diagram.is-interactive .hiw-stack-diagram__layer.is-hovered {
  opacity: 1;
  transform: translateX(4px);
}

.hiw-stack-diagram.is-interactive .hiw-stack-diagram__layer.is-active {
  opacity: 1;
}

/* ——— Workshop wall (single carousel) ——— */

.hiw-ws-wall {
  --hiw-wall-gutter: max(2rem, calc((100vw - min(var(--width-site), 100vw)) / 2 + 2rem));
  position: relative;
  overflow: hidden;
  width: calc(100% + 2 * var(--hiw-wall-gutter));
  max-width: 100vw;
  margin: 2rem calc(-1 * var(--hiw-wall-gutter));
  box-sizing: border-box;
  height: clamp(11rem, 26vh, 17rem);
  cursor: zoom-in;
}

.hiw-ws-wall__viewport {
  height: 100%;
  overflow: hidden;
}

.hiw-ws-wall__track {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: max-content;
  height: 100%;
  padding: 0;
  animation: hiw-ws-scroll 70s linear infinite;
}

.hiw-ws-wall__track img {
  flex: 0 0 auto;
  height: 88%;
  width: auto;
  border-radius: 2px;
  border: 1px solid rgba(28, 28, 28, 0.12);
  box-shadow: 0 10px 28px rgba(28, 28, 28, 0.08);
  object-fit: cover;
}

body.is-image-zoom-open .hiw-ws-wall__track {
  animation-play-state: paused;
}

@keyframes hiw-ws-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .hiw-ws-wall {
    cursor: pointer;
  }

  .hiw-ws-wall__track {
    animation: none;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
    height: auto;
    padding: 1rem;
    gap: 0.75rem;
  }

  .hiw-ws-wall {
    height: auto;
  }

  .hiw-ws-wall__track img {
    height: auto;
    max-height: 10rem;
    max-width: min(44vw, 14rem);
  }
}

/* ——— Product as Play ——— */

.hiw-product-as-play {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 13.5rem;
  gap: 1.75rem;
  align-items: start;
  margin: 0 var(--hiw-prose-inset);
  max-width: var(--hiw-prose);
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.hiw-product-as-play__copy {
  display: grid;
  gap: 1.25rem;
  min-width: 0;
}

.hiw-product-as-play__copy .hiw-tight-prose {
  max-width: none;
}

.hiw-product-as-play__library-lead {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
}

.hiw-product-as-play__library-lead p {
  margin: 0;
  flex: 1;
  min-width: 0;
  font-family: var(--font-serif);
  font-size: 1.02rem;
  line-height: 1.55;
  color: var(--depth-ink-soft);
}

.hiw-product-as-play__bridge {
  flex: 0 0 auto;
  width: 1.65rem;
  height: 0.75rem;
  margin-top: 0.55rem;
  opacity: 0.82;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 22 8' fill='none'%3E%3Ccircle cx='1.1' cy='4' r='.7' fill='%238b4513'/%3E%3Cpath d='M2.6 4h13' stroke='%238b4513' stroke-width='.8'/%3E%3Cpath d='M14.6 2.45 18.2 4l-3.6 1.55' stroke='%238b4513' stroke-width='.8' stroke-linejoin='miter'/%3E%3C/svg%3E")
    no-repeat center / contain;
}

.hiw-product-as-play__games {
  margin: 0;
  padding: 0;
  border: none;
  background: transparent;
  min-width: 0;
}

.hiw-product-as-play__games img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 2px;
  border: 1px solid rgba(28, 28, 28, 0.1);
  box-shadow: 0 10px 28px rgba(28, 28, 28, 0.08);
}

.hiw-product-as-play__games-cap {
  margin: 0.35rem 0 0;
  font-family: var(--font-sans);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-align: center;
  color: var(--color-ink-faint);
}

.hiw-meaningful-play {
  margin: 2rem var(--hiw-prose-inset) 0;
  width: min(42rem, 100%);
  max-width: var(--hiw-prose);
  justify-self: start;
  padding: 0.75rem;
}

.hiw-meaningful-play img {
  width: 100%;
  display: block;
}

/* ——— Play effects ——— */

.hiw-play-effects {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 0.65rem;
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: none;
}

.hiw-play-effects li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  line-height: 1.35;
  color: var(--depth-ink-soft);
  padding: 0.35rem 0.65rem;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(28, 28, 28, 0.08);
  border-radius: 999px;
}

.hiw-play-effects__icon {
  font-size: 0.7rem;
  color: var(--depth-pin);
  opacity: 0.85;
}

/* ——— Naming cards ——— */

.hiw-name-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.75rem var(--hiw-prose-inset) 0;
  max-width: calc(var(--hiw-prose) + 8rem);
}

.hiw-name-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.35rem 1.15rem 1.1rem;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--depth-rule-dash);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.hiw-name-card:hover,
.hiw-name-card:focus-visible {
  border-color: var(--color-ink);
  transform: translateY(-2px);
}

.hiw-name-card__title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 500;
  font-style: italic;
  line-height: 1.25;
  color: var(--color-ink);
  margin: 0 0 0.85rem;
}

.hiw-name-card__glyph {
  display: flex;
  justify-content: center;
  opacity: 0.9;
  margin: 0 0 0.85rem;
}

.hiw-name-card--productivity .hiw-name-card__glyph {
  color: #c45c3a;
}

.hiw-name-card--visibility .hiw-name-card__glyph {
  color: #4a6f8a;
}

.hiw-name-card--support .hiw-name-card__glyph {
  color: #5a7d52;
}

.hiw-name-card__glyph svg {
  display: block;
}

.hiw-name-card__body {
  flex: 1;
  font-size: 0.8rem;
  font-weight: 400;
  line-height: 1.5;
  color: #7f5d48;
  margin: 0 0 0.85rem;
  text-align: left;
}

.hiw-name-card__link {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 400;
  color: var(--color-ink-muted);
  text-decoration: none;
}

.hiw-name-card:hover .hiw-name-card__link {
  color: var(--color-ink);
}

@media (max-width: 900px) {
  .hiw-name-grid {
    grid-template-columns: 1fr;
    max-width: var(--hiw-prose);
  }
}

/* ——— Crit room stage ——— */

.hiw-crit-stage {
  margin: 2rem 0 0;
}

.hiw-crit-stage__hero {
  margin: 0 0 1.25rem;
  padding: 0.5rem;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--depth-rule-dash);
}

.hiw-crit-stage__hero img {
  width: 100%;
  display: block;
}

.hiw-crit-stage__label {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-style: italic;
  color: var(--depth-aside);
  text-align: center;
  margin: 0 0 1rem;
}

.hiw-crit-stage__flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  align-items: start;
}

.hiw-crit-stage__flow figure {
  margin: 0;
  padding: 0.35rem;
  background: #fff;
  border: 1px solid var(--depth-rule-dash);
}

.hiw-crit-stage__flow img {
  width: 100%;
  display: block;
}

.hiw-crit-stage__flow figure:nth-child(2) {
  margin-top: 1.5rem;
}

.hiw-crit-stage__flow figure:nth-child(3) {
  margin-top: 3rem;
}

.hiw-crit-stage__note {
  margin-top: 0.85rem;
  margin-left: var(--hiw-prose-inset);
}

@media (max-width: 800px) {
  .hiw-crit-stage__flow {
    grid-template-columns: 1fr;
  }

  .hiw-crit-stage__flow figure:nth-child(2),
  .hiw-crit-stage__flow figure:nth-child(3) {
    margin-top: 0;
  }
}

/* ——— Self-disruptive callout ——— */

.hiw-disrupt-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(14rem, 17rem);
  gap: 1.5rem 2rem;
  align-items: start;
  margin-top: 2.25rem;
}

.hiw-disrupt-row__copy {
  max-width: var(--hiw-prose);
  font-family: var(--font-serif);
  font-size: 1.02rem;
  line-height: 1.55;
  color: var(--depth-ink-soft);
}

.hiw-disrupt-row__copy p {
  margin: 0 0 0.75em;
}

.hiw-disrupt-row__copy p:last-child {
  margin-bottom: 0;
}

.hiw-quote-callout {
  margin: 0;
  padding: 0.85rem 0 0.85rem 1rem;
  border: none;
  border-left: 3px solid var(--color-ink);
  background: transparent;
}

.hiw-quote-callout__phrase {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 500;
  font-style: italic;
  line-height: 1.35;
  color: var(--color-ink);
  margin: 0 0 0.45rem;
}

.hiw-quote-callout__def {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--depth-aside);
}

@media (max-width: 700px) {
  .hiw-disrupt-row {
    grid-template-columns: 1fr;
  }
}

/* ——— Building with AI pairs ——— */

.hiw-build-compare {
  gap: 0.35rem;
  margin-top: 1.5rem;
  margin-left: 0;
  margin-right: 0;
  max-width: none;
}

.hiw-build-compare .depth-figure {
  padding: 0.35rem;
}

.hiw-pair-label {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--color-ink-faint);
  margin: 0 0 0.45rem;
}

.hiw-build-note {
  max-width: none;
  margin-top: 0.5rem;
}

.hiw-tool-figure {
  margin: 1.5rem 0 0;
  max-width: none;
}

/* ——— CSM epilogue on depth page ——— */

.hiw-epilogue {
  --story-prose: min(42rem, 100%);
  --story-wide: min(72rem, 100%);
  --story-ink: var(--color-ink);
  --story-muted: var(--color-ink-muted);
  --story-faint: var(--color-ink-faint);
  --story-paper: #f7f5f2;
  --story-warm: var(--color-paper-warm);
  --story-dark: #131210;
  --story-dark-text: #d8d4ce;
  --story-score-hi: rgba(242, 239, 233, 0.5);
  --story-score-depth: 5px;
  --story-content-w: calc(min(var(--width-site), 100vw) - 4rem);
  --story-prose-inset: max(
    3.25rem,
    calc((var(--story-content-w) - var(--story-prose) - 4.2rem) / 2)
  );
  --story-sec-col: 2.85rem;
  --story-sec-gap: 1.35rem;
  --story-sec-rail: calc(var(--story-sec-col) + var(--story-sec-gap));
  padding-left: var(--case-gutter, 2rem);
  padding-right: var(--case-gutter, 2rem);
  padding-bottom: var(--space-2xl);
}

.hiw-epilogue .story-chapter--dark {
  margin-left: var(--story-prose-inset);
  max-width: min(var(--story-prose), calc(100% - var(--story-prose-inset)));
  width: 100%;
  box-sizing: border-box;
  padding-top: 5.5rem;
}

.hiw-epilogue .story-block {
  margin-top: 0;
}

.hiw-epilogue .story-block__lead {
  display: block;
  max-width: min(var(--story-prose), calc(100% - var(--story-prose-inset)));
  width: 100%;
  box-sizing: border-box;
  margin-left: var(--story-prose-inset);
}

.hiw-epilogue .case-back-top {
  max-width: min(var(--story-content-w), calc(100% - var(--story-prose-inset)));
  width: 100%;
  box-sizing: border-box;
  margin-left: var(--story-prose-inset);
  padding: 0;
  justify-content: flex-start;
}

.hiw-epilogue .case-back-top a {
  color: rgba(242, 239, 233, 0.45);
}

.hiw-epilogue .case-back-top a:hover {
  color: #e8e4dc;
}

.hiw-epilogue .story-prose .hiw-epilogue__standout {
  font-style: italic;
  color: #c4bfb8;
}

@media (max-width: 768px) {
  body.hiw {
    --hiw-prose-inset: 0;
  }

  .hiw-epilogue {
    --story-prose-inset: 0;
  }

  .hiw-product-as-play {
    grid-template-columns: 1fr;
    max-width: var(--hiw-prose);
  }

  .hiw-product-as-play__bridge {
    display: none;
  }

  .hiw-product-as-play__games {
    max-width: min(20rem, 100%);
  }

  .hiw-meaningful-play {
    max-width: 100%;
  }

  .hiw-epilogue {
    --story-prose-inset: 0;
    --story-sec-col: 2rem;
    --story-sec-gap: 0.75rem;
  }
}