/* YOHAKU hair & lifestyle ― サンプルサイト専用スタイル（他ページに依存しない独立CSS） */

:root {
  --bg: #faf7f2;
  --bg-alt: #f1ebe1;
  --surface: #ffffff;
  --ink: #2a2621;
  --ink-soft: #6f665c;
  --ink-faint: #948b7f;
  --line: #e2d8ca;
  --line-strong: #cabfae;
  --wood: #a98a5e;
  --wood-soft: #cdb996;

  --max: 1180px;
  --max-narrow: 760px;
  --header-h: 68px;

  --fs-wordmark: clamp(2.6rem, 4vw + 1.6rem, 4.6rem);
  --fs-h2: clamp(1.7rem, 1.2vw + 1.4rem, 2.3rem);
  --fs-h3: clamp(1.05rem, 0.4vw + 0.95rem, 1.2rem);
  --fs-lead: clamp(1rem, 0.4vw + 0.9rem, 1.15rem);
  --fs-body: clamp(0.94rem, 0.15vw + 0.9rem, 1rem);
  --fs-note: 0.82rem;
  --fs-eyebrow: 0.78rem;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body.yh {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Yu Gothic Medium", "Noto Sans JP", sans-serif;
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: 1.9;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1, h2, h3, p, dl, dd, figure {
  margin: 0;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

.yh :focus-visible {
  outline: 2px solid var(--wood);
  outline-offset: 3px;
}

.yh-eyebrow {
  display: block;
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--wood);
  margin-bottom: 14px;
}

.yh-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.yh-inner {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.yh-section {
  padding: clamp(64px, 9vw, 128px) 0;
}

.yh-section--alt {
  background: var(--bg-alt);
}

.yh-section__head {
  margin-bottom: clamp(32px, 4vw, 56px);
}

.yh-section__head h2 {
  font-size: var(--fs-h2);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink);
}

/* ---------- reveal-on-scroll ---------- */
.yh-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}

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

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

/* ================= HEADER ================= */
.yh-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(250, 247, 242, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.yh-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 6px 18px rgba(42, 38, 33, 0.05);
}

.yh-header__inner {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.yh-brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.2;
}

.yh-brand__name {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.18em;
}

.yh-brand__sub {
  margin-top: 2px;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
}

.yh-nav {
  display: none;
  align-items: center;
  gap: clamp(18px, 2vw, 34px);
}

.yh-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(16px, 1.8vw, 30px);
}

.yh-nav__list a {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-decoration: none;
  color: var(--ink-soft);
  padding: 4px 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.yh-nav__list a:hover {
  color: var(--ink);
  border-color: var(--wood-soft);
}

.yh-nav__reserve {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 20px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-decoration: none;
  color: var(--ink);
  transition: background-color 0.25s var(--ease), color 0.25s var(--ease);
}

.yh-nav__reserve:hover {
  background: var(--ink);
  color: var(--surface);
}

.yh-menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  margin-right: -10px;
}

.yh-menu-toggle span {
  display: block;
  width: 20px;
  height: 1px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.yh-menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.yh-menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.yh-menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.yh-mobile-nav {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: var(--bg);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
  z-index: 90;
}

.yh-mobile-nav.is-open {
  opacity: 1;
  transform: none;
  visibility: visible;
}

.yh-mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.yh-mobile-nav__list a {
  display: block;
  padding: 14px 4px;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}

.yh-mobile-nav__reserve {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 50px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-decoration: none;
  color: var(--ink);
}

@media (min-width: 900px) {
  .yh-nav {
    display: flex;
  }
  .yh-menu-toggle {
    display: none;
  }
  .yh-mobile-nav {
    display: none;
  }
}

/* ================= HERO ================= */
.yh-hero {
  position: relative;
  height: calc(100svh - var(--header-h));
  min-height: 460px;
  max-height: 900px;
  overflow: hidden;
}

.yh-hero__media {
  position: absolute;
  inset: 0;
}

.yh-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 58% 42%;
  animation: yh-hero-zoom 16s var(--ease) forwards;
}

@keyframes yh-hero-zoom {
  from { transform: scale(1.06); }
  to { transform: scale(1); }
}

.yh-hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20, 17, 14, 0.16) 0%, rgba(20, 17, 14, 0) 32%, rgba(20, 17, 14, 0) 58%, rgba(20, 17, 14, 0.42) 100%);
}

.yh-hero__content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 24px clamp(40px, 7vw, 88px);
  color: #fbf8f3;
}

.yh-hero__sub {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  margin-bottom: 14px;
  opacity: 0.92;
}

.yh-hero__title {
  font-size: var(--fs-wordmark);
  font-weight: 500;
  letter-spacing: 0.1em;
  line-height: 1;
  margin-bottom: 18px;
  text-shadow: 0 2px 20px rgba(20, 17, 14, 0.18);
}

.yh-hero__copy {
  font-size: clamp(0.95rem, 1vw + 0.6rem, 1.2rem);
  letter-spacing: 0.06em;
  font-weight: 400;
}

@media (min-width: 900px) {
  .yh-hero__content {
    padding: 0 60px clamp(56px, 6vw, 96px);
  }
}

/* ================= CONCEPT ================= */
.yh-concept .yh-inner {
  display: grid;
  gap: 36px;
}

.yh-concept__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 2px;
}

.yh-concept__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 62% 32%;
}

.yh-concept__body {
  max-width: 30em;
}

.yh-concept__body h2 {
  font-size: var(--fs-h2);
  font-weight: 500;
  letter-spacing: 0.05em;
  line-height: 1.5;
  margin-bottom: 22px;
}

.yh-concept__body p {
  color: var(--ink-soft);
  font-size: var(--fs-body);
  line-height: 2;
}

@media (min-width: 900px) {
  .yh-concept .yh-inner {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 6vw;
  }
  .yh-concept__media {
    aspect-ratio: 5 / 4;
    order: 1;
  }
  .yh-concept__body {
    order: 2;
    padding-right: 12px;
  }
}

/* ================= STYLE ================= */
.yh-style__sub {
  margin-top: 10px;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

.yh-style__grid {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 74%;
  gap: 18px;
  overflow-x: auto;
  padding-bottom: 8px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.yh-style__item {
  scroll-snap-align: start;
}

.yh-style__frame {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: 2px;
  background: var(--bg-alt);
}

.yh-style__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 18%;
  transition: transform 1.1s var(--ease);
}

.yh-style__item:hover .yh-style__frame img {
  transform: scale(1.035);
}

.yh-style__tag {
  display: block;
  margin-top: 18px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--wood);
}

.yh-style__item p {
  margin-top: 8px;
  font-size: 0.88rem;
  color: var(--ink-soft);
  line-height: 1.8;
}

@media (min-width: 900px) {
  .yh-style__grid {
    grid-auto-flow row;
    grid-template-columns: repeat(3, 1fr);
    overflow: visible;
    gap: clamp(24px, 3vw, 48px);
  }
  .yh-style__item:nth-child(2) {
    margin-top: 44px;
  }
}

/* ================= MENU ================= */
.yh-menu__groups {
  columns: 1;
  column-gap: 64px;
}

.yh-menu__group {
  break-inside: avoid;
  margin-bottom: 44px;
}

.yh-menu__group h3 {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: var(--fs-h3);
  font-weight: 700;
  letter-spacing: 0.14em;
  padding-bottom: 12px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--ink);
}

.yh-menu__group h3 span {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--ink-faint);
}

.yh-menu__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.yh-menu__row dt {
  font-size: var(--fs-body);
}

.yh-menu__row dd {
  font-size: var(--fs-body);
  font-weight: 600;
  white-space: nowrap;
  letter-spacing: 0.03em;
}

.yh-menu__note {
  margin-top: 8px;
  font-size: var(--fs-note);
  color: var(--ink-faint);
  line-height: 1.8;
}

@media (min-width: 760px) {
  .yh-menu__groups {
    columns: 2;
  }
}

/* ================= STAFF ================= */
.yh-staff__list {
  display: flex;
  flex-direction: column;
  gap: clamp(48px, 6vw, 88px);
}

.yh-staff__member {
  display: grid;
  gap: 24px;
  align-items: center;
}

.yh-staff__photo {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: 2px;
  max-width: 340px;
}

.yh-staff__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 22%;
}

.yh-staff__role {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--wood);
}

.yh-staff__name {
  margin-top: 10px;
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.yh-staff__desc {
  margin-top: 16px;
  max-width: 26em;
  color: var(--ink-soft);
  line-height: 2;
}

@media (min-width: 760px) {
  .yh-staff__member {
    grid-template-columns: 340px 1fr;
    gap: 6vw;
  }
  .yh-staff__member--reverse {
    grid-template-columns: 1fr 340px;
  }
  .yh-staff__member--reverse .yh-staff__photo {
    order: 2;
    justify-self: end;
  }
}

/* ================= SALON ================= */
.yh-salon__content {
  display: grid;
  gap: 40px;
}

.yh-salon__media {
  position: relative;
}

.yh-salon__img--main {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: 30% 50%;
  border-radius: 2px;
}

.yh-salon__img--sub {
  display: none;
}

.yh-salon__text {
  color: var(--ink-soft);
  line-height: 2;
  max-width: 32em;
}

.yh-salon__facts {
  display: flex;
  gap: clamp(28px, 4vw, 56px);
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.yh-salon__facts dt {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

.yh-salon__facts dd {
  margin-top: 6px;
  font-size: 1.25rem;
  font-weight: 500;
}

@media (min-width: 900px) {
  .yh-salon__content {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 7vw;
    align-items: start;
  }
  .yh-salon__media {
    padding-bottom: 60px;
  }
  .yh-salon__img--main {
    aspect-ratio: 3 / 4;
  }
  .yh-salon__img--sub {
    display: block;
    position: absolute;
    right: -8%;
    bottom: 0;
    width: 52%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    object-position: center;
    border-radius: 2px;
    border: 6px solid var(--bg);
    box-shadow: 0 18px 40px rgba(42, 38, 33, 0.14);
  }
  .yh-salon__info {
    padding-top: 10px;
  }
}

/* ================= ACCESS ================= */
.yh-access__content {
  display: grid;
  gap: 40px;
}

.yh-access__brand {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: 1.6;
  margin-bottom: 28px;
}

.yh-access__brand span {
  display: block;
  margin-top: 2px;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
}

.yh-access__list {
  display: flex;
  flex-direction: column;
}

.yh-access__list > div {
  display: flex;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.yh-access__list dt {
  flex: 0 0 88px;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  padding-top: 2px;
}

.yh-access__list dd {
  font-size: var(--fs-body);
  line-height: 1.8;
}

.yh-access__map {
  position: relative;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background:
    repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, var(--line) 0 1px, transparent 1px 64px),
    var(--bg-alt);
  overflow: hidden;
}

.yh-access__map-inner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.yh-access__road {
  position: absolute;
  background: var(--surface);
  border: 1px solid var(--line-strong);
}

.yh-access__road--h {
  left: 0;
  right: 0;
  top: 42%;
  height: 22px;
}

.yh-access__road--v {
  top: 0;
  bottom: 0;
  left: 58%;
  width: 22px;
}

.yh-access__map-pin {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--ink);
  color: var(--bg);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  border-radius: 2px;
  box-shadow: 0 10px 24px rgba(42, 38, 33, 0.18);
}

.yh-access__map-pin::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--wood-soft);
}

.yh-access__map-caption {
  position: absolute;
  left: 14px;
  bottom: 12px;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

@media (min-width: 900px) {
  .yh-access__content {
    grid-template-columns: 1fr 1fr;
    gap: 7vw;
    align-items: start;
  }
}

/* ================= RESERVATION ================= */
.yh-reservation__inner {
  text-align: center;
  max-width: var(--max-narrow);
}

.yh-reservation .yh-eyebrow {
  display: block;
  margin: 0 auto 14px;
}

.yh-reservation h2 {
  font-size: var(--fs-h2);
  font-weight: 500;
  letter-spacing: 0.06em;
}

.yh-reservation__text {
  margin-top: 22px;
  color: var(--ink-soft);
  line-height: 2;
}

.yh-reservation__actions {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: stretch;
}

.yh-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 54px;
  padding: 0 28px;
  border-radius: 2px;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}

.yh-button:active {
  transform: scale(0.98);
}

.yh-button--line {
  background: var(--ink);
  color: var(--bg);
}

.yh-button--line:hover {
  opacity: 0.88;
}

.yh-button--tel {
  background: transparent;
  border: 1px solid var(--ink);
  color: var(--ink);
}

.yh-button--tel:hover {
  background: var(--ink);
  color: var(--bg);
}

@media (min-width: 560px) {
  .yh-reservation__actions {
    flex-direction: row;
    justify-content: center;
  }
  .yh-button {
    min-width: 220px;
  }
}

/* ================= FOOTER ================= */
.yh-footer {
  background: var(--ink);
  color: rgba(250, 247, 242, 0.82);
  padding: 56px 0 36px;
}

.yh-footer__inner {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.yh-footer__brand {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--bg);
}

.yh-footer__brand span {
  display: block;
  margin-top: 4px;
  font-size: 0.66rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: rgba(250, 247, 242, 0.6);
}

.yh-footer__sns {
  display: flex;
  gap: 20px;
}

.yh-footer__sns span {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: rgba(250, 247, 242, 0.68);
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(250, 247, 242, 0.28);
}

.yh-footer__bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(250, 247, 242, 0.16);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.yh-footer__copy {
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: rgba(250, 247, 242, 0.6);
}

.yh-footer__disclaimer {
  font-size: 0.72rem;
  line-height: 1.9;
  color: rgba(250, 247, 242, 0.5);
  max-width: 46em;
}

.yh-footer__back {
  align-self: flex-start;
  margin-top: 8px;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: rgba(250, 247, 242, 0.72);
  text-decoration: none;
  border-bottom: 1px solid rgba(250, 247, 242, 0.35);
  padding-bottom: 2px;
}

.yh-footer__back:hover {
  color: var(--bg);
}

@media (min-width: 760px) {
  .yh-footer__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
  .yh-footer__bottom {
    flex: 0 0 100%;
  }
}

/* ================= TOAST (demo notice) ================= */
.yh-toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 12px);
  z-index: 200;
  max-width: min(92vw, 380px);
  padding: 14px 20px;
  background: var(--ink);
  color: var(--bg);
  font-size: 0.82rem;
  line-height: 1.7;
  letter-spacing: 0.02em;
  border-radius: 3px;
  box-shadow: 0 16px 40px rgba(20, 17, 14, 0.28);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
}

.yh-toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

@media (prefers-reduced-motion: reduce) {
  .yh-hero__media img {
    animation: none;
  }
}