:root {
  --yutoru-shadow: 0 16px 48px rgb(23 23 21 / 8%);
  --yutoru-orange: #e84b0c;
  --yutoru-ink: #11110f;
  --yutoru-line: #d5d4cf;
}

html { scroll-behavior: smooth; }
body { text-wrap: pretty; }
:where(a, button, input, textarea, select):focus-visible {
  outline: 3px solid var(--wp--preset--color--orange);
  outline-offset: 3px;
}
.skip-link {
  background: var(--wp--preset--color--ink);
  color: var(--wp--preset--color--white);
  left: 1rem;
  padding: .75rem 1rem;
  position: fixed;
  top: -10rem;
  z-index: 10000;
}

/* === Experiment status summary 2026-09-18 === */
.single-experiment .entry-content > blockquote {
  margin: 2.5rem auto 3rem;
  padding: 1.5rem 1.75rem;
  border: 0;
  border-left: 4px solid var(--yutoru-orange);
  background: #f5f5f1;
  color: var(--yutoru-ink);
  font-style: normal;
}

.single-experiment .entry-content > blockquote::before {
  content: "EXPERIMENT STATUS";
  display: block;
  margin-bottom: .75rem;
  color: var(--yutoru-orange);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  line-height: 1.4;
}

.single-experiment .entry-content > blockquote p {
  margin: 0;
  line-height: 1.8;
}

.single-experiment .entry-content > blockquote strong {
  font-weight: 700;
}

@media (max-width: 781px) {
  .single-experiment .entry-content > blockquote {
    margin: 2rem 0 2.5rem;
    padding: 1.25rem 1.125rem;
  }
}


/* === Homepage hierarchy refinement 2026-09-17 === */
.home .yutoru-b-copy {
  align-items: start;
  display: grid;
  grid-template-columns: minmax(18rem, 20.5rem) max-content;
  column-gap: 1rem;
}

.home .yutoru-b-copy > .eyebrow,
.home .yutoru-b-copy > .hero-title,
.home .yutoru-b-copy > .yutoru-b-lead {
  grid-column: 1 / -1;
}

.home .yutoru-b-actions {
  display: contents;
}

.home .yutoru-b-actions .yutoru-primary-cta {
  grid-column: 1;
  grid-row: 4;
  margin-top: 2rem;
  width: 100%;
}

.home .yutoru-b-actions .yutoru-primary-cta .wp-block-button__link {
  min-width: 0;
  width: 100%;
}

.home .yutoru-b-actions .is-style-outline {
  grid-column: 2;
  grid-row: 4;
  margin-top: 2rem;
}

.home .yutoru-b-actions .is-style-outline .wp-block-button__link {
  background: #fff;
  border: 1px solid #102653;
  border-radius: 4px;
  color: #102653;
  min-width: 12rem;
  padding: 12px 20px;
}

.home .yutoru-b-cta-note {
  background: #fff4ed;
  border-left: 3px solid var(--yutoru-orange);
  border-radius: 0 4px 4px 0;
  box-sizing: border-box;
  color: #3d3b37;
  font-size: .82rem;
  grid-column: 1;
  grid-row: 5;
  line-height: 1.65;
  margin: .65rem 0 0 !important;
  max-width: none;
  padding: .75rem .9rem;
  width: 100%;
}

.home .yutoru-b-cta-note strong {
  color: var(--yutoru-ink);
  display: block;
  margin-bottom: .12rem;
}

.home #experiments {
  padding-bottom: clamp(5rem, 8vw, 7rem) !important;
}

.home #experiments + .wp-block-group {
  background: #f5f5f1;
  border-bottom: 1px solid var(--yutoru-line);
  border-top: 1px solid var(--yutoru-ink);
  box-sizing: border-box;
  margin-top: 0 !important;
  padding-bottom: clamp(5rem, 8vw, 7rem) !important;
  padding-top: clamp(5rem, 8vw, 7rem) !important;
}

@media (max-width: 700px) {
  .home .yutoru-b-copy {
    grid-template-columns: minmax(0, 1fr);
  }

  .home .yutoru-b-actions .yutoru-primary-cta {
    grid-column: 1;
    grid-row: 4;
  }

  .home .yutoru-b-cta-note {
    grid-column: 1;
    grid-row: 5;
  }

  .home .yutoru-b-actions .is-style-outline {
    grid-column: 1;
    grid-row: 6;
    margin-top: 1rem;
    width: 100%;
  }

  .home .yutoru-b-actions .wp-block-button__link,
  .home .yutoru-b-actions .is-style-outline .wp-block-button__link {
    min-width: 0;
    width: 100%;
  }

  .home #experiments {
    padding-bottom: 4.5rem !important;
  }

  .home #experiments + .wp-block-group {
    padding-bottom: 4.5rem !important;
    padding-top: 4.5rem !important;
  }
}
/* === End homepage hierarchy refinement === */

.skip-link:focus { top: 1rem; }
.site-header { border-bottom: 2px solid var(--yutoru-ink); position: relative; z-index: 20; }
.site-header .wp-block-site-title { font-size: clamp(1.35rem, 2.3vw, 2rem) !important; font-weight: 800; letter-spacing: -.035em; line-height: 1; }
.site-header .wp-block-site-title a { text-decoration: none; }
.site-header .wp-block-navigation { gap: clamp(.65rem, 1.5vw, 1.35rem); }
.site-header .wp-block-navigation-item__content { font-size: .76rem; font-weight: 600; }
.site-header .header-cta .wp-block-navigation-item__content { background: #102653; color: #fff; padding: .72rem 1rem; }
.eyebrow {
  color: var(--wp--preset--color--orange);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.hero-title { max-width: 12ch; }
.hero-accent { border-left: 4px solid var(--wp--preset--color--orange); }
.data-label {
  color: var(--wp--preset--color--gray);
  font-family: var(--wp--preset--font-family--mono);
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.data-value {
  font-family: var(--wp--preset--font-family--mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.04em;
}
.section-index {
  color: var(--wp--preset--color--orange);
  font-family: var(--wp--preset--font-family--mono);
  font-size: .78rem;
  font-weight: 500;
}
.yutoru-panel { box-shadow: var(--yutoru-shadow); }
.yutoru-rule { border-top: 1px solid var(--wp--preset--color--line); }
.wp-block-query .wp-block-post { border-top: 1px solid var(--wp--preset--color--line); padding-top: 1.5rem; }
.wp-block-post-excerpt__more-link { font-size: .875rem; font-weight: 600; text-decoration-thickness: 1px; text-underline-offset: .25em; }
.wp-block-button.is-style-outline .wp-block-button__link { background: transparent; color: var(--wp--preset--color--ink); }
.wp-block-button__link:hover { background: var(--wp--preset--color--orange); border-color: var(--wp--preset--color--orange); color: var(--wp--preset--color--white); }
.wp-block-post-content :where(h2, h3) { scroll-margin-top: 5rem; }
.wp-block-post-content h2 { border-top: 1px solid var(--wp--preset--color--line); margin-top: 3.5rem; padding-top: 1.5rem; }
.wp-block-post-content table { font-variant-numeric: tabular-nums; }
.wp-block-search__input { background: var(--wp--preset--color--white); border: 1px solid var(--wp--preset--color--line); min-height: 3rem; }
.yutoru-experiment-summary { background: var(--wp--preset--color--white); border-top: 4px solid var(--wp--preset--color--orange); box-shadow: var(--yutoru-shadow); margin-block: 2.5rem; padding: clamp(1.25rem, 3vw, 2.5rem); }
.yutoru-experiment-summary > h2 { font-size: clamp(1.25rem, 2vw, 1.75rem); margin-top: 0; }
.yutoru-experiment-summary dl { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 0; }
.yutoru-experiment-summary dl > div { border-top: 1px solid var(--wp--preset--color--line); padding: 1rem .75rem 1rem 0; }
.yutoru-experiment-summary dt { color: var(--wp--preset--color--gray); font-size: .75rem; }
.yutoru-experiment-summary dd { font-family: var(--wp--preset--font-family--mono); font-size: clamp(1rem, 2vw, 1.4rem); font-variant-numeric: tabular-nums; margin: .2rem 0 0; }
.yutoru-summary-note { color: var(--wp--preset--color--gray); font-size: .75rem; margin-bottom: 0; }
.yutoru-content-dates {
  color: var(--wp--preset--color--gray);
  display: flex;
  flex-wrap: wrap;
  font-family: var(--wp--preset--font-family--mono);
  font-size: .75rem;
  gap: .35rem 1.2rem;
  letter-spacing: .03em;
  margin-block: .4rem 1.2rem;
}
.yutoru-content-dates time { color: var(--yutoru-ink); font-variant-numeric: tabular-nums; }
.yutoru-method-comparison { margin-block: 1.5rem 2.5rem; }
.yutoru-method-comparison table { table-layout: fixed; width: 100%; }
.yutoru-method-comparison th { font-size: .76rem; line-height: 1.45; }
.yutoru-method-comparison td { font-size: .86rem; line-height: 1.6; vertical-align: top; }

/* Approved B direction: editorial type, diagonal orange plane, numbered flow. */
.yutoru-b-stage { background: #fff; border-bottom: 2px solid var(--yutoru-ink); overflow: hidden; padding-inline: 0 !important; }
.yutoru-b-hero { display: grid; grid-template-columns: minmax(0, 63%) minmax(20rem, 37%); min-height: clamp(31rem, 51vw, 43rem); position: relative; }
.yutoru-b-copy { align-content: center; padding: clamp(3.2rem, 7vw, 7.4rem) clamp(1rem, 4vw, 3.75rem) clamp(3rem, 6vw, 5.2rem) 0; position: relative; z-index: 3; }
.yutoru-b-copy > * { margin-left: 0 !important; margin-right: 0 !important; }
.yutoru-b-copy .eyebrow { color: #55534f; font-size: .7rem; font-weight: 650; letter-spacing: .18em; margin-bottom: 1.4rem; }
.yutoru-b-copy .hero-title { font-size: clamp(3rem, 5.75vw, 6.1rem); font-weight: 760; letter-spacing: -.07em; line-height: 1.08; margin: 0; max-width: none; }
.yutoru-b-copy .hero-title span { color: var(--yutoru-orange); }
.yutoru-b-lead { font-size: clamp(.92rem, 1.15vw, 1.08rem); line-height: 1.85; margin-top: 1.65rem; max-width: 38rem; }
.yutoru-b-actions { gap: .65rem 1.25rem; margin-top: 2rem; }
.yutoru-b-actions .wp-block-button__link { align-items: center; display: flex; justify-content: center; min-width: 14.6rem; text-align: center; }
.wp-block-button.yutoru-primary-cta .wp-block-button__link { align-items: center; background: var(--yutoru-orange); border-color: var(--yutoru-orange); border-radius: 4px; color: #fff; display: flex; justify-content: center; min-width: 14.6rem; text-align: center; }
.yutoru-b-actions .is-style-outline .wp-block-button__link { border-color: transparent; color: #102653; min-width: 12rem; }
.yutoru-b-wedge { align-content: center; align-self: stretch; background: var(--yutoru-orange); clip-path: polygon(48% 0, 100% 0, 100% 100%, 0 100%); display: grid; margin-right: calc((100vw - min(1180px, calc(100vw - 2rem))) / -2); padding: 3rem max(2rem, calc((100vw - 1180px) / 2)) 3rem clamp(6rem, 12vw, 11rem); position: relative; }
.yutoru-b-wedge::after { background: rgb(0 0 0 / 7%); content: ""; inset: 0; mask-image: repeating-linear-gradient(115deg,#000 0 1px,transparent 1px 8px); opacity: .45; pointer-events: none; position: absolute; }
.yutoru-b-manifesto { color: var(--yutoru-ink); font-size: clamp(1.55rem, 2.8vw, 2.7rem); font-weight: 720; letter-spacing: -.055em; line-height: 1.25; margin: 0; position: relative; transform: rotate(-8deg); z-index: 2; }
.yutoru-b-manifesto::after { background: var(--yutoru-ink); content: ""; display: block; height: .25rem; margin-top: .65rem; transform: skewX(-18deg); width: 100%; }
.yutoru-b-steps { background: #f3f3f0; border-top: 2px solid var(--yutoru-ink); padding-inline: 0 !important; }
.yutoru-b-steps-inner { gap: clamp(1rem, 2.5vw, 2.5rem); justify-content: center; min-height: 8.5rem; padding-block: 1.2rem; }
.yutoru-b-step { align-items: center; gap: clamp(.7rem, 1.3vw, 1.15rem); white-space: nowrap; }
.yutoru-b-step-number { color: var(--yutoru-orange); font-family: var(--wp--preset--font-family--mono); font-size: clamp(.82rem, 1.3vw, 1rem); font-weight: 650; letter-spacing: .02em; line-height: 1; margin: 0; }
.yutoru-b-step-label { font-size: clamp(.86rem, 1.25vw, 1.06rem); font-weight: 650; margin: 0; }
.yutoru-b-arrow { font-size: clamp(1.25rem, 2.5vw, 2rem); font-weight: 300; margin: 0; }
.yutoru-b-experiment { background: linear-gradient(116deg,var(--yutoru-ink) 0 32%,#fff 32.1%); padding-inline: 0 !important; }
.yutoru-b-experiment-inner { min-height: 10.5rem; padding-block: 1.5rem; }
.yutoru-b-experiment-title { color: #fff; flex: 0 0 27%; }
.yutoru-b-experiment-title .data-label { color: #c7c7c3; font-size: .66rem; margin: 0 0 .3rem; }
.yutoru-b-experiment-title h2 { font-size: clamp(1.8rem, 3.5vw, 3.6rem); font-weight: 610; letter-spacing: -.055em; line-height: 1; margin: 0; }
.yutoru-b-metrics { gap: 0; margin-left: auto; }
.yutoru-b-metric { min-width: clamp(9.5rem, 15vw, 13.5rem); padding: .5rem clamp(1.25rem, 3vw, 3rem); }
.yutoru-b-metric + .yutoru-b-metric { border-left: 1px solid var(--yutoru-line); }
.yutoru-b-metric .data-label { color: var(--yutoru-ink); font-family: inherit; font-size: .88rem; font-weight: 650; letter-spacing: .04em; margin: 0 0 .2rem; text-transform: none; }
.yutoru-b-metric .data-value { align-items: baseline; color: var(--yutoru-orange); display: flex; gap: .35rem; margin: 0; }
.yutoru-b-metric .data-value strong { font-size: clamp(2.25rem, 4vw, 4.25rem); font-weight: 580; line-height: 1; }
.yutoru-b-metric .data-value small { color: var(--yutoru-ink); font-family: var(--wp--preset--font-family--sans); font-size: .88rem; font-weight: 650; letter-spacing: 0; }
.yutoru-b-experiment-link { flex: 0 0 auto; font-size: .78rem; font-weight: 650; margin: 0; }
.yutoru-b-experiment-link a { text-decoration-thickness: 1px; text-underline-offset: .32em; }

.yutoru-profit-tool { background: var(--yutoru-ink); color: #fff; overflow: hidden; padding-inline: 0 !important; position: relative; }
.yutoru-profit-tool::after { background: var(--yutoru-orange); clip-path: polygon(35% 0,100% 0,100% 100%,0 100%); content: ""; inset: 0 0 0 auto; position: absolute; width: 31%; }
.yutoru-profit-tool__inner { align-items: center; box-sizing: border-box; gap: clamp(2rem, 6vw, 6rem); min-height: 17rem; padding-block: clamp(2.5rem, 5vw, 4.5rem); position: relative; z-index: 1; }
.yutoru-profit-tool__copy { flex: 1 1 42rem; }
.yutoru-profit-tool .section-index { margin-top: 0; }
.yutoru-profit-tool h2 { color: #fff; font-size: clamp(2rem, 4.4vw, 4rem); font-weight: 610; letter-spacing: -.055em; line-height: 1.08; margin-block: .65rem 1rem; }
.yutoru-profit-tool__lead { color: #d6d5d0; font-size: clamp(.9rem, 1.25vw, 1.05rem); line-height: 1.8; max-width: 42rem; }
.yutoru-profit-tool__action { flex: 0 0 auto; padding-right: clamp(1rem, 8vw, 7rem); }
.yutoru-profit-tool__action .wp-block-button__link { background: #fff; border-color: #fff; color: var(--yutoru-ink); min-width: 15rem; }
.yutoru-profit-tool__action .wp-block-button__link:hover { background: var(--yutoru-ink); border-color: var(--yutoru-ink); color: #fff; }

@media (max-width: 781px) {
  .hero-layout { gap: 2rem !important; }
  .hero-title { max-width: none; }
  .metric-grid { display: grid !important; grid-template-columns: 1fr 1fr; }
  .yutoru-experiment-summary dl { grid-template-columns: 1fr 1fr; }
  .site-footer .wp-block-navigation { align-items: flex-start; }
  .site-header { border-bottom-width: 1px; }
  .site-header > .wp-block-group { min-height: 3.8rem; }
  .site-header .wp-block-site-title { font-size: 1.45rem !important; }
  .yutoru-b-hero { display: flex; flex-direction: column; min-height: 0; }
  .yutoru-b-copy { padding: 3.4rem 0 3rem; }
  .yutoru-b-copy .eyebrow { font-size: .62rem; margin-bottom: 1rem; }
  .yutoru-b-copy .hero-title { font-size: clamp(2.55rem, 12.4vw, 4rem); letter-spacing: -.065em; line-height: 1.11; }
  .yutoru-b-lead { font-size: .88rem; line-height: 1.8; margin-top: 1.3rem; max-width: 31rem; }
  .yutoru-b-actions { align-items: stretch; flex-direction: column; gap: .35rem; margin-top: 1.6rem; }
  .yutoru-b-actions .wp-block-button { width: 100%; }
  .yutoru-b-actions .wp-block-button__link { box-sizing: border-box; min-width: 0 !important; text-align: center; width: 100%; }
  .wp-block-button.yutoru-primary-cta { width: 100%; }
  .wp-block-button.yutoru-primary-cta .wp-block-button__link { box-sizing: border-box; min-width: 0; width: 100%; }
  .yutoru-b-wedge { clip-path: polygon(0 42%,100% 0,100% 100%,0 100%); margin: 0 -1rem; min-height: 12.5rem; padding: 5.2rem 1.4rem 1.8rem 42%; }
  .yutoru-b-manifesto { font-size: clamp(1.35rem, 6.4vw, 1.85rem); margin-left: auto; transform: rotate(-6deg); width: max-content; }
  .yutoru-b-manifesto::after { height: .18rem; }
  .yutoru-b-steps-inner { align-items: stretch; flex-direction: column; gap: 0; min-height: 0; padding-block: .5rem; }
  .yutoru-b-step { display: grid; grid-template-columns: 4.5rem 1fr; min-height: 4.5rem; width: 100%; }
  .yutoru-b-step-number { font-size: .78rem; }
  .yutoru-b-step-label { font-size: .9rem; }
  .yutoru-b-arrow { display: none; }
  .yutoru-b-step + .yutoru-b-step { border-top: 1px solid var(--yutoru-line); }
  .yutoru-b-step + .yutoru-b-step::before { color: #777; content: "↓"; font-size: .9rem; left: 1.25rem; position: absolute; transform: translateY(-.65rem); }
  .yutoru-b-experiment { background: var(--yutoru-ink); }
  .yutoru-b-experiment-inner { align-items: stretch; flex-direction: column; min-height: 0; padding-block: 2rem; }
  .yutoru-b-experiment-title { flex-basis: auto; }
  .yutoru-b-experiment-title h2 { font-size: 2rem; font-weight: 560; }
  .yutoru-b-metrics { background: #fff; box-sizing: border-box; display: grid !important; grid-template-columns: 1fr 1fr; margin: 1.4rem 0 0; width: 100%; }
  .yutoru-b-metric { min-width: 0; padding: 1.15rem; }
  .yutoru-b-metric .data-label { font-size: .72rem; }
  .yutoru-b-metric .data-value strong { font-size: clamp(2rem, 10vw, 3rem); }
  .yutoru-b-experiment-link { margin-top: 1rem; }
  .yutoru-b-experiment-link a { color: #fff; }
  .yutoru-profit-tool::after { clip-path: polygon(0 36%,100% 0,100% 100%,0 100%); inset: auto 0 0; width: 100%; height: 7.5rem; }
  .yutoru-profit-tool__inner { align-items: stretch; flex-direction: column; gap: 2rem; min-height: 0; padding-block: 2.7rem 3rem; }
  .yutoru-profit-tool h2 { font-size: clamp(2rem, 9vw, 3rem); }
  .yutoru-profit-tool__action { padding: 1.2rem 0 0; width: 100%; }
  .yutoru-profit-tool__action .wp-block-button,
  .yutoru-profit-tool__action .wp-block-button__link { box-sizing: border-box; width: 100%; }
  .yutoru-method-comparison thead {
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
  }
  .yutoru-method-comparison :where(table, tbody, tr) { display: block; width: 100%; }
  .yutoru-method-comparison tr { border-top: 1px solid var(--yutoru-line); padding-block: .85rem; }
  .yutoru-method-comparison td {
    border: 0;
    display: grid;
    gap: .75rem;
    grid-template-columns: 6.7rem minmax(0, 1fr);
    padding: .38rem 0;
    width: 100%;
  }
  .yutoru-method-comparison td::before {
    color: var(--wp--preset--color--gray);
    content: attr(data-label);
    font-size: .7rem;
    font-weight: 650;
    letter-spacing: .04em;
  }
  .yutoru-method-comparison td:first-child { font-weight: 650; }
}

@media (max-width: 390px) {
  .yutoru-b-copy .hero-title { font-size: 2.5rem; }
  .yutoru-b-wedge { padding-left: 32%; }
  .yutoru-b-metric { padding: 1rem .85rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}