/* ---------- ヘッダー ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding-inline: var(--gutter);
  color: var(--color-ivory);
  background: transparent;
}

.header.is-solid {
  background: var(--color-ivory);
  color: var(--color-charcoal);
  border-bottom: 1px solid var(--color-line-dark);
}

.header.is-menu-open {
  background: transparent;
  color: var(--color-ivory);
  border-bottom-color: transparent;
}

.header__logo {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header__reserve,
.header__menu {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding-inline: 18px;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  border: 1px solid currentColor;
  background: transparent;
}

@media (max-width: 359px) {
  .header__logo {
    font-size: 0.8125rem;
    letter-spacing: 0.2em;
  }

  .header__reserve {
    padding-inline: 14px;
  }
}

.header__menu {
  border-color: transparent;
  padding-inline: 8px;
  text-transform: uppercase;
}

/* ---------- 全画面メニュー ---------- */
.menu {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 24px) var(--gutter) 32px;
  background: var(--color-charcoal);
  color: var(--color-ivory);
  visibility: hidden;
  clip-path: circle(0 at calc(100% - 40px) 28px);
}

.menu.is-open {
  visibility: visible;
  clip-path: circle(150vmax at calc(100% - 40px) 28px);
}

@media (prefers-reduced-motion: no-preference) {
  .menu {
    transition: clip-path 0.9s var(--ease-out), visibility 0s linear 0.9s;
  }

  .menu.is-open {
    transition: clip-path 0.9s var(--ease-out), visibility 0s;
  }
}

.menu__nav {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
}

.menu__list {
  display: grid;
  gap: 4px;
}

.menu__link {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding-block: 6px;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 9vw, 5.5rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.menu__link small {
  margin-left: auto;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--color-muted-on-dark);
}

.menu__no {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--color-muted-on-dark);
}

.menu__reserve {
  margin-top: 32px;
}

/* ---------- 場面の共通 ---------- */
.scene {
  position: relative;
  z-index: 1;
  padding: var(--scene-space) var(--gutter);
  background: var(--color-ivory);
}

.folio {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  color: var(--color-muted-on-light);
}

/* ---------- 場面1：オープニング ---------- */
.hero {
  position: sticky;
  top: 0;
  z-index: 0;
  height: 100vh;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
  background: var(--color-charcoal);
  color: var(--color-ivory);
}

.hero__media,
.hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__img {
  object-fit: cover;
  object-position: 50% 40%;
}

@media (min-width: 768px) {
  .hero__img {
    object-position: 85% 40%;
  }
}

.hero::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  z-index: 1;
  height: 62%;
  background: linear-gradient(to top, rgba(43, 42, 40, 0.78), rgba(43, 42, 40, 0));
  pointer-events: none;
}

.hero__inner {
  z-index: 2;
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: calc(var(--header-height) + 24px) var(--gutter) 72px;
}

.hero__title {
  display: flex;
  flex-direction: column;
  font-weight: 400;
  line-height: 0.85;
}

.hero__atelier {
  margin-bottom: 0.9rem;
  margin-left: 0.4rem;
  font-family: var(--font-display);
  font-size: clamp(0.875rem, 3vw, 2.25rem);
  letter-spacing: 0.5em;
}

.hero__kinu {
  margin-left: -0.04em;
  font-family: var(--font-display);
  font-size: clamp(6.5rem, 30vw, 27rem);
  letter-spacing: -0.03em;
}

.hero__eyebrow {
  margin-bottom: auto;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.hero__copy {
  margin-top: 28px;
  font-size: clamp(1.25rem, 3.2vw, 2.25rem);
  line-height: 1.5;
  letter-spacing: 0.12em;
}

.hero__phrase {
  display: inline-block;
}

.hero__sub {
  margin-top: 8px;
  font-size: 0.875rem;
  color: var(--color-muted-on-dark);
}

.hero__cta {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  min-height: 44px;
  margin-top: 20px;
  font-family: var(--font-display);
  font-size: 1.125rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.hero__cta-line {
  width: 64px;
  height: 1px;
  background: currentColor;
  transition: width 0.6s var(--ease-out);
}

.hero__cta:hover .hero__cta-line {
  width: 112px;
}

.hero__scroll {
  position: absolute;
  z-index: 2;
  right: var(--gutter);
  bottom: 28px;
  writing-mode: vertical-rl;
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

/* ---------- 場面2：コンセプト ---------- */
.concept {
  display: grid;
  gap: 40px;
  padding-top: calc(var(--scene-space) * 1.1);
  padding-bottom: calc(var(--scene-space) * 1.1);
}

.concept__title {
  font-weight: 500;
  font-size: clamp(2.5rem, 9.5vw, 8rem);
  line-height: 1.2;
  letter-spacing: 0.04em;
}

.concept__body {
  display: grid;
  gap: 1.4em;
  max-width: 34em;
}

.concept__steps {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-line-dark);
}

.concept__step {
  display: grid;
  grid-template-columns: 2.5rem 4rem 1fr;
  align-items: baseline;
  padding-block: 20px;
  border-bottom: 1px solid var(--color-line-dark);
}

.concept__step-no {
  font-family: var(--font-display);
  font-style: italic;
}

.concept__step strong {
  font-weight: 500;
  font-size: 1.125rem;
}

@media (min-width: 768px) {
  .concept {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    row-gap: 64px;
  }

  .concept .folio {
    grid-column: 1 / -1;
  }

  .concept__title {
    grid-column: 1 / 11;
  }

  .concept__body {
    grid-column: 6 / 12;
  }

  .concept__steps {
    grid-column: 2 / 9;
  }
}

/* ---------- 場面3：Works ---------- */
.works__head {
  display: grid;
  gap: 16px;
  margin-bottom: 48px;
}

.works__title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(4.5rem, 20vw, 17rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
}

.works__lead {
  color: var(--color-muted-on-light);
}

.works__list {
  display: flex;
  gap: 12px;
  margin-inline: calc(var(--gutter) * -1);
  padding-inline: var(--gutter);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: var(--gutter);
  overscroll-behavior-x: contain;
  scrollbar-width: none;
}

.works__list::-webkit-scrollbar {
  display: none;
}

.work {
  flex: 0 0 78vw;
  scroll-snap-align: center;
}

@media (min-width: 768px) {
  .works {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
  }

  .works__head {
    grid-column: 1 / 5;
    align-self: start;
    position: sticky;
    top: calc(var(--header-height) + 32px);
    margin-bottom: 0;
  }

  .works__title {
    margin-left: -0.04em;
    font-size: clamp(4rem, 10vw, 11rem);
  }

  .works__list {
    grid-column: 5 / -1;
    flex-direction: column;
    gap: clamp(72px, 14vh, 160px);
    margin-inline: 0;
    padding-inline: 0;
    overflow: visible;
    scroll-snap-type: none;
  }

  .work {
    flex: none;
    width: 80%;
  }

  .work:nth-child(even) {
    align-self: flex-end;
    width: 64%;
  }
}

/* ---------- 場面4：診断 ---------- */
.diagnosis {
  background: var(--color-charcoal);
  color: var(--color-ivory);
}

.diagnosis .folio {
  color: var(--color-muted-on-dark);
}

.diagnosis__head {
  display: grid;
  gap: 24px;
  margin-bottom: 56px;
}

.diagnosis__title {
  font-weight: 500;
  font-size: clamp(2.5rem, 8vw, 6.5rem);
  line-height: 1.2;
  letter-spacing: 0.04em;
}

.diagnosis__lead {
  max-width: 30em;
  color: var(--color-muted-on-dark);
}

.quiz {
  display: block;
}

.quiz__stage {
  position: sticky;
  top: var(--header-height);
  z-index: 2;
  display: flex;
  align-items: flex-end;
  gap: 16px;
  height: clamp(220px, 36vh, 320px);
  margin-inline: calc(var(--gutter) * -1);
  padding: 12px var(--gutter);
  background: var(--color-charcoal);
}

.quiz__photo {
  flex: none;
  align-self: stretch;
  height: 100%;
  width: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.quiz__content {
  padding-top: 32px;
}

@media (min-width: 768px) {
  .diagnosis__head {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
  }

  .diagnosis__head .folio {
    grid-column: 1 / -1;
  }

  .diagnosis__title {
    grid-column: 1 / 8;
  }

  .diagnosis__lead {
    grid-column: 8 / -1;
    align-self: end;
  }

  .quiz {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: 64px;
  }

  .quiz__stage {
    grid-column: 2;
    grid-row: 1;
    align-self: start;
    display: block;
    top: calc(var(--header-height) + 24px);
    height: auto;
    aspect-ratio: 4 / 5;
    max-height: calc(100vh - var(--header-height) - 48px);
    margin-inline: 0;
    padding: 0;
    background: var(--color-charcoal-soft);
  }

  .quiz__photo {
    width: 100%;
    height: 100%;
  }

  .quiz__content {
    grid-column: 1;
    grid-row: 1;
    padding-top: 0;
  }
}

/* ---------- 場面5：スタイリスト ---------- */
.stylist__title {
  margin: 16px 0 56px;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(4.5rem, 18vw, 15rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
}

.stylist__list {
  display: grid;
  gap: 56px;
}

.person:nth-child(even) {
  margin-left: 14%;
}

.stylist__note {
  margin-top: 56px;
  font-size: 0.75rem;
  color: var(--color-muted-on-light);
}

@media (min-width: 768px) {
  .stylist__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 40px;
  }

  .person:nth-child(even) {
    margin-left: 0;
    margin-top: 9vw;
  }

  .person:nth-child(3) {
    margin-top: 3vw;
  }
}

/* ---------- 場面6：メニュー・料金 ---------- */
.price {
  display: grid;
  gap: 40px;
  background: var(--color-brown);
  color: var(--color-ivory);
}

.price .folio {
  color: var(--color-muted-on-dark);
}

.price__title {
  margin-block: 12px;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(4.5rem, 16vw, 13rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
}

.price__lead,
.price__note {
  font-size: 0.8125rem;
  color: var(--color-muted-on-dark);
}

.price__cta {
  justify-self: start;
}

@media (min-width: 768px) {
  .price {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    align-items: start;
  }

  .price__head {
    grid-column: 1 / 6;
  }

  .price__list {
    grid-column: 6 / -1;
  }

  .price__note {
    grid-column: 6 / -1;
    margin-top: -16px;
  }

  .price__cta {
    grid-column: 6 / -1;
  }
}

/* ---------- 場面7：サロン ---------- */
.salon {
  display: grid;
  gap: 24px;
}

.salon__title {
  margin: 16px 0 24px;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(4.5rem, 18vw, 15rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
}

.salon__pair {
  display: grid;
  gap: 24px;
}

.salon__info {
  margin-top: 40px;
  border-top: 1px solid var(--color-line-dark);
}

@media (min-width: 768px) {
  .salon {
    gap: 56px;
  }

  .salon__pair {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    align-items: start;
  }

  .salon__pair .salon__photo--tall {
    grid-column: 1 / 6;
  }

  .salon__pair .salon__photo--wide-offset {
    grid-column: 6 / -1;
    margin-top: 14vw;
  }

  .salon__pair--reverse .salon__photo--tall {
    grid-column: 8 / -1;
    grid-row: 1;
  }

  .salon__pair--reverse .salon__photo--wide-offset {
    grid-column: 1 / 8;
    grid-row: 1;
    margin-top: 6vw;
  }

  .salon__info {
    margin-top: 64px;
    max-width: 640px;
  }
}

/* ---------- 場面8：予約 ---------- */
.reserve {
  display: grid;
  gap: 48px;
  min-height: 100vh;
  align-content: center;
  background: var(--color-charcoal);
  color: var(--color-ivory);
}

.reserve__word {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(4.5rem, 21vw, 19rem);
  line-height: 0.85;
  letter-spacing: -0.03em;
  color: var(--color-ivory);
}

.reserve__title {
  margin-top: 16px;
  font-weight: 500;
  font-size: 1.25rem;
  letter-spacing: 0.3em;
}

.reserve__lead {
  margin-top: 8px;
  color: var(--color-muted-on-dark);
}

@media (min-width: 768px) {
  .reserve {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 24px;
    align-items: end;
  }

  .reserve__head {
    grid-column: 1 / 8;
  }

  .reserve__word {
    font-size: clamp(4.5rem, 12vw, 13rem);
  }

  .reserve__form {
    grid-column: 8 / -1;
  }
}

/* ---------- フッター ---------- */
.footer {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
  padding: 56px var(--gutter) 40px;
  background: var(--color-charcoal);
  color: var(--color-muted-on-dark);
  border-top: 1px solid var(--color-line-light);
  font-size: 0.75rem;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.125rem;
  letter-spacing: 0.32em;
  color: var(--color-ivory);
}

.footer__top {
  display: inline-block;
  min-height: 44px;
  margin-left: 12px;
  padding-top: 10px;
  text-decoration: underline;
  text-underline-offset: 4px;
}