:root {
  --improvement-ink: #35332d;
  --improvement-muted: #756f65;
  --improvement-sage: #727b67;
  --improvement-sage-deep: #56604f;
  --improvement-sage-soft: #e8e9e1;
  --improvement-paper: #faf8f2;
  --improvement-line: rgba(86, 96, 79, 0.18);
  --improvement-shadow: 0 18px 48px rgba(74, 67, 56, 0.08);
}

.body-improvement-page {
  background: var(--improvement-paper);
  color: var(--improvement-ink);
}

.body-improvement-page main {
  background:
    radial-gradient(circle at 12% 18%, rgba(222, 212, 193, 0.26), transparent 27%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.42), transparent 22%, transparent 78%, rgba(255, 255, 255, 0.42));
}

.body-improvement-page [id] {
  scroll-margin-top: 112px;
}

.improvement-hero {
  position: relative;
  min-height: min(790px, 92vh);
  overflow: hidden;
  background: #f7f3eb;
}

.improvement-hero-copy {
  position: relative;
  z-index: 2;
  display: flex;
  width: var(--inner-max);
  min-height: inherit;
  max-width: none;
  margin: 0 auto;
  padding: clamp(136px, 13vw, 180px) 0 clamp(72px, 8vw, 108px);
  flex-direction: column;
  justify-content: center;
}

.improvement-hero h1 {
  max-width: 670px;
  margin: 0;
  font-size: clamp(30px, 3.15vw, 48px);
  line-height: 1.34;
}

.improvement-hero h1 span,
#overview-title span {
  display: block;
  white-space: nowrap;
}

.improvement-hero-lead,
.improvement-hero-note {
  max-width: 700px;
  color: var(--improvement-muted);
  font-size: 16px;
  line-height: 1.9;
}

.improvement-hero-lead span,
.improvement-hero-note span {
  display: block;
  white-space: nowrap;
}

.improvement-hero-lead {
  margin: 28px 0 0;
}

.improvement-hero-note {
  margin: 13px 0 0;
}

.improvement-hero .inner-actions {
  flex-wrap: nowrap;
}

.improvement-hero-visual {
  position: absolute;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  min-height: inherit;
  margin: 0;
  overflow: hidden;
}

.improvement-hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 74%, rgba(247, 243, 235, 0.12) 88%, rgba(247, 243, 235, 0.46) 100%),
    linear-gradient(90deg, #f7f3eb 0%, rgba(247, 243, 235, 0.98) 24%, rgba(247, 243, 235, 0.82) 43%, rgba(247, 243, 235, 0.4) 58%, rgba(247, 243, 235, 0.08) 72%, transparent 84%);
  pointer-events: none;
}

.improvement-hero-visual picture,
.improvement-hero-visual img {
  display: block;
  width: 100%;
  height: 100%;
}

.improvement-hero-visual img {
  min-height: inherit;
  object-fit: cover;
  object-position: center 48%;
}

.direction-overview,
.method-bridge {
  width: var(--inner-max);
  margin: 0 auto;
}

.direction-overview {
  padding: 88px 0 78px;
}

.improvement-heading {
  display: grid;
  grid-template-columns: minmax(160px, 0.45fr) minmax(0, 1fr);
  align-items: end;
  gap: 32px;
  margin-bottom: 40px;
}

.improvement-heading .inner-eyebrow {
  margin-bottom: 7px;
}

.improvement-heading h2 {
  max-width: 730px;
  margin: 0;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.overview-grid article {
  position: relative;
  min-height: 390px;
  padding: 34px;
  overflow: hidden;
  border: 1px solid var(--improvement-line);
  border-radius: 20px;
  background: rgba(255, 254, 250, 0.78);
  box-shadow: 0 12px 32px rgba(77, 68, 58, 0.055);
}

.overview-grid article:nth-child(2) {
  transform: translateY(20px);
}

.overview-symbol {
  position: absolute;
  top: 22px;
  right: 26px;
  display: block;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 8px 24px rgba(78, 72, 62, 0.08);
}

.overview-label {
  margin: 0 0 48px;
  color: var(--improvement-sage);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.overview-grid h3 {
  margin: 0 0 16px;
  font-family: var(--inner-display-font);
  font-size: 27px;
  font-weight: 400;
}

.overview-grid article > p:not(.overview-label) {
  margin: 0;
  color: var(--improvement-muted);
  line-height: 1.8;
}

.overview-grid article > div {
  display: grid;
  gap: 4px;
  margin-top: 23px;
}

.overview-grid a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 0;
  border-top: 1px solid var(--improvement-line);
  color: var(--improvement-sage-deep);
  font-size: 14px;
}

.overview-grid a::after {
  content: "↘";
  opacity: 0.58;
}

.chapter-nav-shell {
  position: sticky;
  z-index: 25;
  top: 76px;
  padding: 10px 0;
  background: linear-gradient(180deg, rgba(250, 248, 242, 0.98), rgba(250, 248, 242, 0.9));
  backdrop-filter: blur(14px);
}

.chapter-nav {
  display: grid;
  width: var(--inner-max);
  margin: 0 auto;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid rgba(86, 96, 79, 0.28);
  border-radius: 999px;
}

.chapter-nav a {
  position: relative;
  display: grid;
  min-height: 48px;
  place-items: center;
  padding: 10px 12px;
  border-right: 1px solid rgba(86, 96, 79, 0.18);
  color: #716d64;
  font-size: 13px;
  white-space: nowrap;
  transition: background 180ms ease, color 180ms ease;
}

.chapter-nav a:last-child {
  border-right: 0;
}

.chapter-nav a[aria-current="true"] {
  background: var(--improvement-sage);
  color: #fffdf7;
}

.improvement-chapters {
  display: grid;
  width: var(--inner-max);
  margin: 22px auto 0;
  gap: 14px;
}

.improvement-chapter {
  display: grid;
  min-height: 470px;
  grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1.55fr);
  overflow: hidden;
  border: 1px solid var(--improvement-line);
  border-radius: 20px;
  background: rgba(255, 254, 250, 0.76);
  box-shadow: 0 10px 30px rgba(76, 68, 58, 0.045);
}

.improvement-chapter--reverse {
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.78fr);
}

.improvement-chapter--reverse .chapter-visual {
  grid-column: 2;
}

.improvement-chapter--reverse .chapter-content {
  grid-column: 1;
  grid-row: 1;
}

.chapter-visual {
  min-height: 100%;
  margin: 0;
  overflow: hidden;
}

.chapter-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#neck-posture .chapter-visual img { object-position: center 44%; }
#sedentary-recovery .chapter-visual img { object-position: center 52%; }
#youth-growth .chapter-visual img { object-position: center 56%; }
#prenatal-training .chapter-visual img { object-position: center 52%; }
#postpartum-recovery .chapter-visual img { object-position: center 42%; }
#strength-shaping .chapter-visual img { object-position: center 46%; }
#starting-point .chapter-visual img { object-position: center 55%; }

.chapter-content {
  padding: clamp(28px, 4vw, 48px);
}

.chapter-title {
  display: flex;
  align-items: flex-start;
  gap: 19px;
}

.chapter-title > span {
  color: var(--improvement-sage);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 48px;
  font-weight: 400;
  line-height: 0.96;
}

.chapter-title p {
  margin: 0 0 4px;
  color: var(--improvement-sage);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.chapter-title h2 {
  margin: 0;
  font-size: clamp(28px, 3vw, 40px);
}

.chapter-thesis {
  margin: 22px 0 26px;
  color: #49453e;
  font-family: var(--inner-display-font);
  font-size: clamp(18px, 1.8vw, 23px);
  line-height: 1.55;
}

.chapter-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
}

.chapter-columns section {
  padding: 0 21px;
  border-left: 1px solid var(--improvement-line);
}

.chapter-columns section:first-child {
  padding-left: 0;
  border-left: 0;
}

.chapter-columns section:last-child {
  padding-right: 0;
}

.chapter-columns h3 {
  margin: 0 0 10px;
  color: var(--improvement-sage-deep);
  font-size: 14px;
}

.chapter-columns ul,
.mini-path {
  display: grid;
  gap: 5px;
  margin: 0;
  padding: 0;
  color: var(--improvement-muted);
  font-size: 13px;
  line-height: 1.65;
}

.chapter-columns ul {
  padding-left: 1.1em;
}

.mini-path {
  list-style: none;
  counter-reset: mini-path;
}

.mini-path li {
  counter-increment: mini-path;
}

.mini-path li::before {
  content: "0" counter(mini-path) "  ";
  color: var(--improvement-sage);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.chapter-method {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px 18px;
  margin: 26px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--improvement-line);
  color: var(--improvement-muted);
  font-size: 13px;
}

.chapter-method strong {
  color: var(--improvement-sage-deep);
  font-size: 13px;
}

.chapter-method a {
  color: var(--improvement-sage-deep);
  text-decoration: underline;
  text-decoration-color: rgba(86, 96, 79, 0.3);
  text-underline-offset: 4px;
}

.chapter-callout,
.family-note {
  margin: 22px 0 0;
  padding: 15px 18px;
  border-left: 3px solid var(--improvement-sage);
  background: rgba(232, 233, 225, 0.55);
  color: var(--improvement-muted);
  font-size: 13px;
  line-height: 1.75;
}

.family-note strong {
  color: var(--improvement-sage-deep);
}

.family-note p {
  margin: 4px 0 0;
}

.starting-copy {
  max-width: 780px;
  margin: 0 0 24px;
  color: var(--improvement-muted);
  line-height: 1.8;
}

.starting-steps {
  display: grid;
  margin: 0;
  padding: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  list-style: none;
}

.starting-steps li {
  display: flex;
  gap: 13px;
  padding: 15px;
  border: 1px solid var(--improvement-line);
  border-radius: 12px;
  background: rgba(250, 248, 242, 0.72);
}

.starting-steps span {
  color: var(--improvement-sage);
  font-family: Georgia, serif;
  font-size: 22px;
}

.starting-steps strong {
  color: var(--improvement-sage-deep);
  font-size: 14px;
}

.starting-steps p {
  margin: 4px 0 0;
  color: var(--improvement-muted);
  font-size: 12px;
  line-height: 1.55;
}

.method-bridge {
  padding: 105px 0 80px;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 13px;
}

.method-grid > a {
  min-height: 290px;
  padding: 28px;
  border: 1px solid var(--improvement-line);
  border-radius: 16px;
  background: rgba(255, 254, 250, 0.72);
  color: inherit;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.method-grid > a:hover,
.method-grid > a:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(86, 96, 79, 0.45);
  box-shadow: var(--improvement-shadow);
}

.method-grid span {
  color: rgba(86, 96, 79, 0.5);
  font-family: Georgia, serif;
  font-size: 16px;
}

.method-grid h3 {
  margin: 42px 0 11px;
  font-family: var(--inner-display-font);
  font-size: 26px;
  font-weight: 400;
}

.method-grid strong {
  display: block;
  margin-bottom: 12px;
  color: var(--improvement-sage-deep);
  font-size: 13px;
}

.method-grid p,
.method-note {
  color: var(--improvement-muted);
  font-size: 13px;
  line-height: 1.75;
}

.method-note {
  margin: 18px 0 0;
  text-align: center;
}

.improvement-boundary {
  display: grid;
  width: var(--inner-max);
  margin: 0 auto 90px;
  padding: clamp(30px, 5vw, 58px);
  grid-template-columns: minmax(0, 1.45fr) minmax(220px, 0.65fr);
  align-items: center;
  gap: 50px;
  border: 1px solid var(--improvement-line);
  border-radius: 20px;
  background:
    linear-gradient(90deg, rgba(246, 241, 230, 0.98), rgba(250, 248, 243, 0.9)),
    url("../images/private-training/training-boundary-studio.jpg") center / cover;
  box-shadow: var(--improvement-shadow);
}

.improvement-boundary h2 {
  margin: 0 0 20px;
}

.improvement-boundary > div > p:not(.inner-eyebrow) {
  max-width: 760px;
  margin: 8px 0 0;
  color: var(--improvement-muted);
  line-height: 1.8;
}

.improvement-boundary aside {
  padding-left: 36px;
  border-left: 1px solid var(--improvement-line);
  text-align: center;
}

.improvement-boundary aside span {
  display: block;
  margin-bottom: 12px;
  color: var(--improvement-sage);
  font-size: 36px;
}

.improvement-boundary aside strong {
  color: var(--improvement-sage-deep);
}

.improvement-boundary aside p {
  margin: 8px 0 0;
  color: var(--improvement-muted);
  font-size: 13px;
  line-height: 1.7;
}

@media (max-width: 1100px) {
  .improvement-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(390px, 0.92fr);
  }

  .chapter-columns {
    grid-template-columns: 1fr 1fr;
    gap: 20px 0;
  }

  .chapter-columns section:nth-child(3) {
    grid-column: 1 / -1;
    padding: 18px 0 0;
    border-top: 1px solid var(--improvement-line);
    border-left: 0;
  }

  .method-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .body-improvement-page [id] {
    scroll-margin-top: 146px;
  }

  .improvement-hero {
    display: block;
    min-height: 780px;
  }

  .improvement-hero-copy {
    width: calc(100vw - 68px);
    max-width: none;
    min-height: 780px;
    margin: 0 auto;
    padding: 150px 0 170px;
  }

  .improvement-hero-visual::after {
    background:
      linear-gradient(180deg, transparent 72%, rgba(247, 243, 235, 0.18) 88%, rgba(247, 243, 235, 0.56) 100%),
      linear-gradient(90deg, rgba(247, 243, 235, 0.99) 0%, rgba(247, 243, 235, 0.95) 42%, rgba(247, 243, 235, 0.58) 67%, rgba(247, 243, 235, 0.12) 100%);
  }

  .improvement-heading {
    display: block;
  }

  .overview-grid {
    grid-template-columns: 1fr;
  }

  .overview-grid article {
    min-height: 0;
  }

  .overview-grid article:nth-child(2) {
    transform: none;
  }

  .chapter-nav-shell {
    top: 64px;
  }

  .chapter-nav {
    display: flex;
    width: 100%;
    padding: 0 max(18px, calc((100vw - 720px) / 2));
    overflow-x: auto;
    border: 0;
    border-radius: 0;
    scrollbar-width: none;
    scroll-padding-inline: 18px;
  }

  .chapter-nav::-webkit-scrollbar {
    display: none;
  }

  .chapter-nav a {
    min-width: max-content;
    min-height: 42px;
    border: 1px solid var(--improvement-line);
    border-right: 0;
    padding: 9px 17px;
  }

  .chapter-nav a:first-child {
    border-radius: 999px 0 0 999px;
  }

  .chapter-nav a:last-child {
    border-right: 1px solid var(--improvement-line);
    border-radius: 0 999px 999px 0;
  }

  .improvement-chapter,
  .improvement-chapter--reverse {
    grid-template-columns: 1fr;
  }

  .improvement-chapter .chapter-visual,
  .improvement-chapter--reverse .chapter-visual {
    grid-column: 1;
    grid-row: 1;
    min-height: 340px;
  }

  .improvement-chapter .chapter-content,
  .improvement-chapter--reverse .chapter-content {
    grid-column: 1;
    grid-row: 2;
  }

  .improvement-boundary {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .improvement-boundary aside {
    padding: 24px 0 0;
    border-top: 1px solid var(--improvement-line);
    border-left: 0;
  }
}

@media (max-width: 640px) {
  .improvement-hero {
    min-height: 840px;
  }

  .improvement-hero-copy {
    display: flex;
    width: calc(100vw - 40px);
    min-height: 840px;
    padding: 128px 0 104px;
    flex-direction: column;
    justify-content: flex-start;
  }

  .improvement-hero h1 {
    font-size: clamp(33px, 9.4vw, 43px);
  }

  .improvement-hero h1 span {
    white-space: normal;
  }

  .improvement-hero-lead,
  .improvement-hero-note {
    font-size: 14px;
    line-height: 1.72;
  }

  .improvement-hero .inner-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .improvement-hero .inner-button {
    width: 100%;
    min-width: 0;
    padding-right: 14px;
    padding-left: 14px;
  }

  .improvement-hero-visual::after {
    background:
      linear-gradient(180deg, rgba(247, 243, 235, 0.99) 0%, rgba(247, 243, 235, 0.96) 48%, rgba(247, 243, 235, 0.66) 67%, rgba(247, 243, 235, 0.16) 84%, rgba(247, 243, 235, 0.34) 100%),
      linear-gradient(90deg, rgba(247, 243, 235, 0.34), transparent 72%);
  }

  .improvement-hero-visual img {
    object-position: 58% center;
  }

  .direction-overview {
    padding: 68px 0 56px;
  }

  #overview-title {
    font-size: clamp(25px, 7.2vw, 30px);
    line-height: 1.42;
  }

  .direction-overview,
  .method-bridge,
  .improvement-chapters,
  .improvement-boundary {
    width: calc(100vw - 32px);
  }

  .overview-grid article {
    padding: 27px;
  }

  .improvement-chapters {
    gap: 12px;
  }

  .improvement-chapter .chapter-visual,
  .improvement-chapter--reverse .chapter-visual {
    min-height: 260px;
    max-height: 330px;
  }

  #neck-posture .chapter-visual img { object-position: center 42%; }
  #sedentary-recovery .chapter-visual img { object-position: center 49%; }
  #youth-growth .chapter-visual img { object-position: center 58%; }
  #prenatal-training .chapter-visual img { object-position: center 50%; }
  #postpartum-recovery .chapter-visual img { object-position: center 40%; }
  #strength-shaping .chapter-visual img { object-position: center 45%; }
  #starting-point .chapter-visual img { object-position: center 56%; }

  .chapter-content {
    padding: 27px 21px 30px;
  }

  .chapter-title {
    gap: 13px;
  }

  .chapter-title > span {
    font-size: 38px;
  }

  .chapter-columns {
    grid-template-columns: 1fr;
  }

  .chapter-columns section,
  .chapter-columns section:first-child,
  .chapter-columns section:nth-child(3) {
    grid-column: auto;
    padding: 17px 0 0;
    border-top: 1px solid var(--improvement-line);
    border-left: 0;
  }

  .chapter-columns section:first-child {
    padding-top: 0;
    border-top: 0;
  }

  .starting-steps {
    grid-template-columns: 1fr;
  }

  .method-bridge {
    padding: 78px 0 60px;
  }

  .method-grid {
    grid-template-columns: 1fr;
  }

  .method-grid > a {
    min-height: 0;
  }

  .method-grid h3 {
    margin-top: 22px;
  }

  .improvement-boundary {
    margin-bottom: 58px;
    padding: 28px 22px;
  }
}

@media (max-width: 520px) {
  .improvement-hero-lead span,
  .improvement-hero-note span {
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .chapter-nav a,
  .method-grid > a {
    scroll-behavior: auto;
    transition: none;
  }
}