/* ---------------------------------------------------------
   components.css — UI components
--------------------------------------------------------- */

/* =========================================================
   Buttons / CTA
========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.9em 2em;
  font-family: var(--font-sans);
  font-size: var(--fs-400);
  letter-spacing: var(--tracking-wide);
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background var(--transition), color var(--transition),
    border-color var(--transition), transform var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--color-text);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
}

.btn--outline {
  border-color: var(--color-line);
  color: var(--color-text);
}

.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--block {
  display: flex;
  width: 100%;
}

.btn__arrow {
  transition: transform var(--transition);
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}

/* =========================================================
   Header
========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--color-line);
  color: var(--color-brand-text);
  transition: background 0.3s ease, box-shadow 0.35s ease,
    border-color 0.3s ease;
}

/* JS adds data-scrolled once the page is scrolled */
.site-header[data-scrolled="true"] {
  background: rgba(255, 255, 255, 0.94);
  border-bottom-color: transparent;
  box-shadow: 0 8px 28px rgba(20, 18, 16, 0.07);
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.brand {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand__name {
  font-family: var(--font-serif);
  font-size: var(--fs-500);
  letter-spacing: var(--tracking-wide);
}

.brand__sub {
  font-size: 0.625rem;
  letter-spacing: var(--tracking-wider);
  color: var(--color-muted);
  text-transform: uppercase;
}

/* --- Primary nav --- */
.nav {
  display: none;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  position: relative;
  font-size: var(--fs-400);
  letter-spacing: var(--tracking-wide);
  padding-block: var(--space-xs);
  color: var(--color-brand-text);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.nav__link:hover::after,
.nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav__link[aria-current="page"] {
  color: var(--color-accent);
}

.nav__cta {
  margin-left: var(--space-sm);
}

/* --- Hamburger --- */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
}

.nav-toggle__bar {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* --- Mobile drawer --- */
.mobile-nav {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: var(--color-bg);
  transform: translateX(100%);
  transition: transform var(--transition);
  z-index: 99;
  padding: var(--space-xl) var(--space-lg);
  overflow-y: auto;
}

.mobile-nav[data-open="true"] {
  transform: translateX(0);
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.mobile-nav__link {
  display: block;
  font-family: var(--font-serif);
  font-size: var(--fs-600);
  padding-block: var(--space-sm);
  border-bottom: 1px solid var(--color-line);
  color: var(--color-brand-text);
}

.mobile-nav__link[aria-current="page"] {
  color: var(--color-accent);
}

.mobile-nav__cta {
  margin-top: var(--space-lg);
}

body[data-nav-open="true"] {
  overflow: hidden;
}

@media (min-width: 960px) {
  .nav {
    display: block;
  }
  .nav-toggle,
  .mobile-nav {
    display: none;
  }
}

/* =========================================================
   Hero slider
========================================================= */
.hero {
  position: relative;
  height: calc(100svh - var(--header-h));
  min-height: 520px;
  overflow: hidden;
  background: var(--color-surface-2);
}

.hero__track {
  height: 100%;
}

.hero__slide {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  opacity: 0;
  transition: opacity 1s ease;
  pointer-events: none;
}

.hero__slide[data-active="true"] {
  opacity: 1;
  pointer-events: auto;
}

.hero__media {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  /* placeholder gradient — replace with photo via inline style */
  /* slight overscale gives motion.js room for the scroll parallax
     without exposing edges; identical to the JS baseline transform */
  transform: translate3d(0, 0, 0) scale(1.08);
}

.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(20, 18, 16, 0.28) 0%,
    rgba(20, 18, 16, 0.55) 100%
  );
}

.hero__caption {
  position: relative;
  z-index: 2;
  color: #fff;
  text-align: center;
  padding-inline: var(--space-lg);
  max-width: 720px;
  transform: translateY(12px);
  opacity: 0;
  transition: transform 0.9s var(--transition) 0.2s,
    opacity 0.9s ease 0.2s;
}

.hero__slide[data-active="true"] .hero__caption {
  transform: translateY(0);
  opacity: 1;
}

.hero__title {
  color: #fff;
  font-family: var(--font-serif);
  font-size: var(--fs-800);
  line-height: 1.5;
  letter-spacing: 0.04em;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.35);
}

.hero__title .br {
  display: block;
}

/* PC専用の改行：SPでは natural wrap に任せて改行タグを無効化 */
@media (max-width: 767px) {
  .br-pc {
    display: none;
  }
}

.hero__tag {
  display: inline-block;
  margin-top: var(--space-md);
  font-size: var(--fs-300);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  opacity: 0.85;
}

/* slider controls */
.hero__dots {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: var(--space-sm);
}

.hero__dot {
  width: 32px;
  height: 2px;
  background: rgba(255, 255, 255, 0.4);
  transition: background var(--transition);
}

.hero__dot[aria-selected="true"] {
  background: #fff;
}

.hero__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 1.5rem;
  opacity: 0.7;
  transition: opacity var(--transition);
}

.hero__arrow:hover {
  opacity: 1;
}

.hero__arrow--prev {
  left: var(--space-xs);
}
.hero__arrow--next {
  right: var(--space-xs);
}

@media (max-width: 600px) {
  .hero__arrow {
    display: none;
  }
}

/* =========================================================
   Philosophy / message band
========================================================= */
.message {
  text-align: center;
}

.message__text {
  font-family: var(--font-serif);
  font-size: var(--fs-600);
  line-height: 2.1;
  letter-spacing: 0.04em;
  max-width: 24em;
  margin-inline: auto;
  color: var(--color-text);
}

/* =========================================================
   Cards grid (Contents / generic)
========================================================= */
.grid {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 880px) {
  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card__media {
  aspect-ratio: 4 / 3;
  background: var(--color-surface-2);
  background-size: cover;
  background-position: center;
}

.card__body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  flex: 1;
}

.card__title {
  font-family: var(--font-serif);
  font-size: var(--fs-600);
}

.card__text {
  color: var(--color-muted);
  font-size: var(--fs-400);
  flex: 1;
}

.card__link {
  margin-top: auto;
  font-size: var(--fs-400);
  color: var(--color-accent);
  letter-spacing: var(--tracking-wide);
}

.card__link .btn__arrow {
  transition: transform var(--transition);
  display: inline-block;
}

.card:hover .card__link .btn__arrow {
  transform: translateX(4px);
}

/* =========================================================
   About excerpt (split)
========================================================= */
.split {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
}

@media (min-width: 880px) {
  .split {
    grid-template-columns: 0.9fr 1.1fr;
    gap: var(--space-2xl);
  }
  .split--reverse .split__media {
    order: 2;
  }
}

.split__media {
  aspect-ratio: 3 / 4;
  background: var(--color-surface-2);
  background-size: cover;
  background-position: center;
  border-radius: var(--radius-lg);
}

@media (min-width: 880px) {
  .split__media {
    aspect-ratio: 4 / 5;
  }
}

/* =========================================================
   News list
========================================================= */
.news-list {
  display: flex;
  flex-direction: column;
}

.news-item {
  display: grid;
  gap: var(--space-2xs);
  padding-block: var(--space-lg);
  border-bottom: 1px solid var(--color-line);
}

@media (min-width: 640px) {
  .news-item {
    grid-template-columns: 130px 120px 1fr;
    align-items: baseline;
    gap: var(--space-lg);
  }
}

.news-item__date {
  font-size: var(--fs-300);
  color: var(--color-muted);
  letter-spacing: var(--tracking-wide);
}

.news-item__cat {
  font-size: var(--fs-300);
  color: var(--color-accent);
  letter-spacing: var(--tracking-wide);
}

.news-item__title {
  font-size: var(--fs-400);
}

.news-item a:hover {
  color: var(--color-accent);
}

/* =========================================================
   Press credits (grouped by medium)
========================================================= */
.press {
  display: grid;
  gap: var(--space-xl);
}

.press__row {
  display: grid;
  gap: var(--space-sm);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-line);
}

.press__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

@media (min-width: 640px) {
  .press__row {
    grid-template-columns: 140px 1fr;
    gap: var(--space-xl);
    align-items: start;
  }
}

.press__cat {
  font-family: var(--font-serif);
  font-size: var(--fs-500);
  font-weight: 500;
  color: var(--color-brand-text);
  letter-spacing: var(--tracking-wide);
}

.press__items {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.press__items li {
  font-size: var(--fs-400);
  line-height: 1.7;
  color: var(--color-text);
}

/* =========================================================
   Biography (narrative blocks)
========================================================= */
.bio {
  display: grid;
  gap: var(--space-xl);
}

.bio-block__title {
  font-family: var(--font-serif);
  font-size: var(--fs-500);
  font-weight: 500;
  color: var(--color-brand-text);
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-sm);
  padding-left: var(--space-md);
  border-left: 2px solid var(--color-accent);
}

.bio-block .text-muted + .text-muted {
  margin-top: var(--space-md);
}

/* =========================================================
   Course syllabus & spec (School)
========================================================= */
.syllabus {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-xs);
}

@media (min-width: 640px) {
  .syllabus {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xs) var(--space-xl);
  }
}

.syllabus li {
  position: relative;
  padding-left: 1.4em;
  font-size: var(--fs-400);
  line-height: 1.8;
  color: var(--color-text);
}

.syllabus li::before {
  content: "";
  position: absolute;
  left: 0.1em;
  top: 0.85em;
  width: 0.7em;
  height: 1px;
  background: var(--color-accent);
}

.course-spec {
  margin-top: var(--space-xl);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg);
}

.course-spec > div {
  display: grid;
  grid-template-columns: 7em 1fr;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
}

.course-spec > div + div {
  border-top: 1px solid var(--color-line);
}

.course-spec dt {
  color: var(--color-muted);
  font-size: var(--fs-400);
}

.course-spec dd {
  font-size: var(--fs-400);
  color: var(--color-text);
}

.course-spec dd strong {
  font-size: var(--fs-500);
}

/* =========================================================
   Social channels (YouTube embed / Instagram card)
========================================================= */
.channel__title {
  font-family: var(--font-serif);
  font-size: var(--fs-500);
  font-weight: 500;
  color: var(--color-brand-text);
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-md);
}

.video-embed {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface-2);
  box-shadow: var(--shadow-md);
}

.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.channel__actions {
  margin-top: var(--space-md);
}

.ig-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  text-decoration: none;
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.ig-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.ig-card__icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(45deg, #f09433, #e6683c 30%, #dc2743 55%, #bc1888 90%);
}

.ig-card--line .ig-card__icon {
  background: #06c755;
}

.ig-card--shop .ig-card__icon {
  background: var(--color-accent);
}

.ig-card--youtube .ig-card__icon {
  background: #ff0000;
}

.ig-card--podcast .ig-card__icon {
  background: var(--color-accent-dark);
}

/* "coming soon" — non-clickable, muted card */
.ig-card--soon {
  cursor: default;
}

.ig-card--soon .ig-card__icon {
  background: var(--color-muted);
}

.ig-card--soon:hover {
  border-color: var(--color-line);
  box-shadow: none;
  transform: none;
}

.ig-card--soon .ig-card__arrow {
  color: var(--color-faint);
  font-size: var(--fs-300);
}

.ig-card--soon:hover .ig-card__arrow {
  transform: none;
}

/* vertical stack of ig-cards (SNS / Links) */
.ig-card-list {
  display: grid;
  gap: var(--space-md);
}

.ig-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  min-width: 0;
}

.ig-card__handle {
  font-size: var(--fs-500);
  font-weight: 500;
  color: var(--color-text);
}

.ig-card__text {
  font-size: var(--fs-300);
  color: var(--color-muted);
}

.ig-card__arrow {
  margin-left: auto;
  color: var(--color-accent);
  font-size: var(--fs-500);
  transition: transform var(--transition);
}

.ig-card:hover .ig-card__arrow {
  transform: translateX(4px);
}

/* =========================================================
   FAQ (accordion)
========================================================= */
.faq-list {
  border-top: 1px solid var(--color-line);
}

.faq-item {
  border-bottom: 1px solid var(--color-line);
}

.faq-item__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  text-align: left;
  padding-block: var(--space-lg);
  font-size: var(--fs-500);
  font-family: var(--font-serif);
}

.faq-item__icon {
  flex-shrink: 0;
  position: relative;
  width: 16px;
  height: 16px;
}

.faq-item__icon::before,
.faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--color-accent);
  transition: transform var(--transition), opacity var(--transition);
}

.faq-item__icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 1.5px;
  transform: translateY(-50%);
}

.faq-item__icon::after {
  left: 50%;
  top: 0;
  width: 1.5px;
  height: 100%;
  transform: translateX(-50%);
}

.faq-item__q[aria-expanded="true"] .faq-item__icon::after {
  opacity: 0;
}

.faq-item__a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition);
}

.faq-item__a > div {
  overflow: hidden;
}

.faq-item__q[aria-expanded="true"] + .faq-item__a {
  grid-template-rows: 1fr;
}

.faq-item__a p {
  color: var(--color-muted);
  padding-bottom: var(--space-lg);
}

/* =========================================================
   Testimonials / voice
========================================================= */
.voice-card {
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.voice-card__quote {
  font-family: var(--font-serif);
  font-size: var(--fs-500);
  line-height: 1.9;
}

.voice-card__person {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: auto;
}

.voice-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-surface-2);
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
}

.voice-card__name {
  font-size: var(--fs-400);
}

.voice-card__meta {
  font-size: var(--fs-300);
  color: var(--color-muted);
}

/* =========================================================
   Pricing
========================================================= */
.price-card {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  background: var(--color-bg);
}

.price-card__name {
  font-family: var(--font-serif);
  font-size: var(--fs-600);
}

.price-card__amount {
  font-size: var(--fs-700);
  font-family: var(--font-serif);
}

.price-card__amount small {
  font-size: var(--fs-400);
  color: var(--color-muted);
}

.price-card__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  color: var(--color-muted);
  font-size: var(--fs-400);
}

.price-card__features li {
  padding-left: 1.4em;
  position: relative;
}

.price-card__features li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

.price-card__note {
  font-size: var(--fs-300);
  color: var(--color-muted);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-line);
}

/* CTAボタン（note付き／なし両方）をカード下端で揃える */
.price-card > .btn {
  margin-top: auto;
}
.price-card__note {
  margin-top: auto;
}
.price-card__note + .btn {
  margin-top: 0;
}

/* =========================================================
   Flow steps (numbered)
========================================================= */
.flow-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
  list-style: none;
  padding: 0;
}

.flow-steps li {
  padding: var(--space-lg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  color: var(--color-muted);
  line-height: 1.7;
}

.flow-steps strong {
  color: var(--color-text);
  font-family: var(--font-serif);
  font-size: var(--fs-500);
}

/* =========================================================
   Topic groups (Session consultation themes)
========================================================= */
.topic-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.topic-group {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  background: var(--color-bg);
}

.topic-group__title {
  font-family: var(--font-serif);
  font-size: var(--fs-600);
  color: var(--color-brand-text);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-line);
}

.topic-group__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  list-style: none;
  padding: 0;
  color: var(--color-text);
  font-size: var(--fs-400);
}

.topic-group__list li {
  padding-left: 1.5em;
  position: relative;
  line-height: 1.8;
}

.topic-group__list li::before {
  content: "";
  position: absolute;
  left: 0.1em;
  top: 0.7em;
  width: 0.6em;
  height: 1px;
  background: var(--color-accent);
}

/* =========================================================
   SNS icons
========================================================= */
.sns {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.sns__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  color: var(--color-text);
  transition: background var(--transition), color var(--transition),
    border-color var(--transition);
}

.sns__link:hover {
  background: var(--color-text);
  color: #fff;
  border-color: var(--color-text);
}

.sns__link svg {
  width: 20px;
  height: 20px;
}

/* =========================================================
   Footer
========================================================= */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
  padding-block: var(--space-2xl) var(--space-xl);
  color: var(--color-brand-text);
}

.site-footer__grid {
  display: grid;
  gap: var(--space-xl);
}

@media (min-width: 720px) {
  .site-footer__grid {
    grid-template-columns: 1.5fr 1fr 1fr;
  }
}

.footer-brand__name {
  font-family: var(--font-serif);
  font-size: var(--fs-600);
}

.footer-brand__text {
  margin-top: var(--space-sm);
  color: var(--color-muted);
  font-size: var(--fs-400);
  max-width: 32ch;
}

.footer-col__title {
  font-size: var(--fs-300);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-md);
}

.footer-col__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  font-size: var(--fs-400);
}

.site-footer__bottom {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-line);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-300);
  color: var(--color-muted);
}

.site-footer__legal {
  display: flex;
  gap: var(--space-lg);
}

.site-footer__business {
  flex-basis: 100%;
  color: var(--color-muted);
  opacity: 0.85;
}

/* =========================================================
   Page hero (sub-pages)
========================================================= */
.page-hero {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
  padding-block: var(--space-2xl);
  text-align: center;
}

.page-hero__eyebrow {
  display: block;
  font-size: var(--fs-300);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.page-hero__title {
  font-size: var(--fs-800);
}

.page-hero__lead {
  margin-top: var(--space-md);
  color: var(--color-muted);
  max-width: 54ch;
  margin-inline: auto;
}

/* breadcrumb */
.breadcrumb {
  font-size: var(--fs-300);
  color: var(--color-muted);
  padding-block: var(--space-md);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: var(--space-xs);
  color: var(--color-faint);
}

/* =========================================================
   Prose (legal / privacy)
========================================================= */
.prose h2 {
  font-size: var(--fs-600);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.prose h3 {
  font-size: var(--fs-500);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xs);
}

.prose p,
.prose li {
  color: var(--color-muted);
}

.prose ul {
  list-style: disc;
  padding-left: 1.4em;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin-block: var(--space-md);
}

.prose th,
.prose td {
  text-align: left;
  padding: var(--space-md);
  border: 1px solid var(--color-line);
  vertical-align: top;
}

.prose th {
  width: 30%;
  background: var(--color-surface);
  font-weight: 500;
}

/* =========================================================
   CTA band
========================================================= */
.cta-band {
  text-align: center;
}

.cta-band__title {
  font-family: var(--font-serif);
  font-size: var(--fs-700);
  margin-bottom: var(--space-md);
}

.cta-band__text {
  color: var(--color-muted);
  max-width: 46ch;
  margin: 0 auto var(--space-lg);
}

/* =========================================================
   Reveal-on-scroll
========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease var(--reveal-delay, 0s),
    transform 0.7s var(--transition) var(--reveal-delay, 0s);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* =========================================================
   Certified names (認定者一覧)
========================================================= */
.cert-names {
  list-style: none;
  padding: 0;
  margin: var(--space-md) 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
}

@media (min-width: 640px) {
  .cert-names {
    grid-template-columns: repeat(2, 1fr);
  }
}

.cert-names li {
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  font-family: var(--font-serif);
  font-size: var(--fs-500);
  color: var(--color-brand-text);
  text-align: center;
}

/* =========================================================
   In-page jump nav (long content pages)
========================================================= */
.page-nav {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-line);
}

.page-nav__inner {
  display: flex;
  gap: var(--space-xs);
  overflow-x: auto;
  padding-block: var(--space-sm);
  scrollbar-width: none;
  justify-content: center;
  /* fall back to flex-start when chips overflow, so none get clipped */
  justify-content: safe center;
}

.page-nav__inner::-webkit-scrollbar {
  display: none;
}

.page-nav a {
  flex: 0 0 auto;
  padding: 0.45em 1.1em;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  font-size: var(--fs-300);
  color: var(--color-muted);
  white-space: nowrap;
  transition: color var(--transition), border-color var(--transition),
    background-color var(--transition);
}

.page-nav a:hover,
.page-nav a:focus-visible {
  color: var(--color-brand-text);
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

/* Mobile: wrap chips onto multiple rows so the whole nav is visible
   without horizontal scrolling. A wrapped multi-row bar would eat too
   much screen if it stayed sticky, so it scrolls with the page here. */
@media (max-width: 767px) {
  .page-nav {
    position: static;
    background: var(--color-surface);
    border-top: 1px solid var(--color-line);
  }
  .page-nav__inner {
    flex-wrap: wrap;
    overflow-x: visible;
    justify-content: center;
    gap: var(--space-xs);
    padding-block: var(--space-md);
  }
  .page-nav a {
    padding: 0.6em 1.05em;
    font-size: 0.875rem; /* 14px — easier to read & tap */
    line-height: 1.5;
    background: var(--color-bg);
  }
}

/* Anchored sections clear the sticky header + jump nav */
.section[id] {
  scroll-margin-top: calc(var(--header-h) + 64px);
}
@media (max-width: 767px) {
  /* nav no longer sticky on mobile — only clear the header */
  .section[id] {
    scroll-margin-top: calc(var(--header-h) + 16px);
  }
}

/* Lead paragraph — entry sentence for long intros */
.lead,
.rich p.lead {
  font-size: 1.125rem; /* 18px — larger than body even on mobile */
  line-height: 1.95;
  color: var(--color-text);
  line-break: strict;
  word-break: auto-phrase;
  text-wrap: pretty;
}
@media (min-width: 768px) {
  .lead,
  .rich p.lead {
    font-size: 1.3125rem; /* 21px — clearly the entry sentence */
  }
}

/* Active jump-nav chip (scroll-spy) */
.page-nav a.is-active {
  color: #fff;
  background: var(--color-accent);
  border-color: var(--color-accent);
}

/* =========================================================
   Reading progress bar (long content pages)
========================================================= */
.read-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(
    90deg,
    var(--color-accent),
    var(--color-accent-dark)
  );
  z-index: 200;
  pointer-events: none;
  will-change: transform;
}

/* =========================================================
   Back-to-top button
========================================================= */
.to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: none;
  border-radius: 999px;
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition),
    visibility var(--transition), background var(--transition);
  z-index: 90;
}

.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.to-top:hover,
.to-top:focus-visible {
  background: var(--color-accent-dark);
}

.to-top svg {
  width: 20px;
  height: 20px;
}

@media (prefers-reduced-motion: reduce) {
  .to-top {
    transform: none;
    transition: opacity 0.001s linear, visibility 0.001s linear;
  }
  .read-progress {
    transition: none;
  }
}

/* =========================================================
   Rich reading body — long-form prose comfort
   (higher contrast ink, looser leading, roomier rhythm)
========================================================= */
.rich {
  color: var(--color-ink);
}
.rich p,
.rich li {
  color: var(--color-ink);
  font-size: var(--fs-500); /* 17px — roomier for long-form reading */
  line-height: 2; /* generous leading for Japanese body copy */
  line-break: strict; /* proper kinsoku — no line starts with 。、）」 etc. */
  word-break: auto-phrase; /* break at natural 文節 boundaries (graceful fallback) */
  text-wrap: pretty; /* avoid lone-character orphan lines */
}
@media (min-width: 768px) {
  .rich p,
  .rich li {
    font-size: 1.125rem; /* 18px on larger screens */
  }
}
/* Override .text-muted inside reading body so long copy stays legible */
.rich .text-muted {
  color: var(--color-ink);
}
.rich > * + * {
  margin-top: var(--space-lg);
}
/* Grid-based reading blocks (.bio) manage spacing via gap, not margin */
.rich.bio > * + * {
  margin-top: 0;
}
.rich strong {
  font-weight: 700;
  color: var(--color-text);
}
/* Fine-print notes keep their muted, smaller treatment */
.rich .text-muted--fine {
  color: var(--color-muted);
  font-size: var(--fs-400);
  line-height: 1.9;
}
@media (min-width: 768px) {
  .rich .text-muted--fine {
    font-size: var(--fs-400);
  }
}
.rich ul,
.rich ol {
  padding-left: 1.3em;
}
.rich ul > li + li,
.rich ol > li + li {
  margin-top: var(--space-xs);
}

/* =========================================================
   Accordion (native <details>) — cautionary notes / terms
========================================================= */
.acc {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  overflow: hidden;
}
.acc + .acc {
  margin-top: var(--space-sm);
}
.acc__head {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--fs-400);
  color: var(--color-text);
  line-height: 1.7;
  line-break: strict;
  word-break: auto-phrase;
  text-wrap: pretty;
  transition: background-color var(--transition);
}
.acc__head::-webkit-details-marker {
  display: none;
}
.acc__head:hover {
  background: var(--color-surface);
}
.acc__head:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}
.acc__icon {
  flex: 0 0 auto;
  position: relative;
  width: 18px;
  height: 18px;
  margin-left: auto;
}
.acc__icon::before,
.acc__icon::after {
  content: "";
  position: absolute;
  background: var(--color-accent);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.acc__icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}
.acc__icon::after {
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}
.acc[open] .acc__icon::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}
.acc__body {
  padding: 0 var(--space-lg) var(--space-lg);
  color: var(--color-ink);
}
.acc__body > * + * {
  margin-top: var(--space-sm);
}
.acc__body ul {
  padding-left: 1.3em;
  list-style: disc;
}
.acc__body li {
  line-height: 1.9;
}
.acc__body li + li {
  margin-top: var(--space-xs);
}
@media (prefers-reduced-motion: reduce) {
  .acc__head,
  .acc__icon::before,
  .acc__icon::after {
    transition: none;
  }
}