/* =========================================================
   月白 -Tsukishiro- アトリエ  |  style.css
   静かな高級感 / 余白 > 情報量 / 売り込まない設計
   ========================================================= */

/* ---------- Custom Properties ---------- */
:root {
  /* color */
  --color-primary: #1F2A28;   /* 墨緑 */
  --color-secondary: #C7B299; /* 砂金 */
  --color-accent: #A88B6A;    /* 金茶 */
  --color-bg: #F4F1EB;        /* 温白色 */
  --color-text: #2A2724;
  --color-text-soft: #6a6358;
  --color-line: rgba(168, 139, 106, 0.28);
  --color-white: #fbfaf7;

  /* typography */
  --font-heading: "Shippori Mincho B1", "Yu Mincho", serif;
  --font-body: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-en: "Cormorant Garamond", Georgia, serif;

  /* spacing scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 7.5rem;
  --section-gap: clamp(5rem, 13vw, 9rem);

  /* layout */
  --container: 1080px;
  --container-narrow: 760px;
  --gutter: clamp(1.25rem, 5vw, 2.5rem);

  /* radius & misc */
  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 26px;
  --shadow-soft: 0 24px 60px -32px rgba(31, 42, 40, 0.35);
  --shadow-card: 0 18px 48px -30px rgba(31, 42, 40, 0.4);

  /* motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.8s;
}

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 88px;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* Defensive fallback only. Bleed is contained per-section via
     `.section { overflow-x: clip }` and `.hero`/`.cta { overflow: hidden }`;
     this remains as a last-resort guard and does not create the page's
     primary clipping context. */
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

ul,
ol {
  list-style: none;
}

/* ---------- Focus ---------- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: 50%;
  top: -100px;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-bg);
  padding: 0.75rem 1.5rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  z-index: 1000;
  transition: top 0.25s var(--ease);
}
.skip-link:focus {
  top: 0;
}

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-block: var(--section-gap);
  /* Contain any decorative/parallax bleed locally so horizontal overflow is
     handled per-section rather than relying solely on body{overflow-x:hidden}.
     `clip` (unlike `hidden`) does not create a scroll container and therefore
     does not break position:sticky inside the section. */
  overflow-x: clip;
}

/* ---------- Section headers ---------- */
.section__head {
  max-width: 620px;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}
.section__eyebrow {
  font-family: var(--font-en);
  font-size: 0.95rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.section__eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--color-accent);
}
.section__eyebrow--light {
  color: var(--color-secondary);
}
.section__eyebrow--light::before {
  background: var(--color-secondary);
}
.section__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(28px, 5vw, 52px);
  letter-spacing: 0.08em;
  line-height: 1.5;
  color: var(--color-primary);
}
.section__lead {
  margin-top: 1.4rem;
  color: var(--color-text-soft);
  font-size: 1.02rem;
  max-width: 48ch;
}

/* ---------- Buttons ---------- */
.btn {
  --btn-pad-y: 0.95rem;
  --btn-pad-x: 1.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: var(--btn-pad-y) var(--btn-pad-x);
  font-size: 0.96rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.4;
  border-radius: 999px;
  border: 1px solid transparent;
  text-align: center;
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease),
    border-color 0.4s var(--ease), transform 0.4s var(--ease),
    box-shadow 0.4s var(--ease);
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-bg);
  box-shadow: 0 14px 32px -18px rgba(31, 42, 40, 0.7);
}
.btn--primary:hover {
  background: #2c3b38;
  transform: translateY(-2px);
  box-shadow: 0 20px 40px -18px rgba(31, 42, 40, 0.75);
}
.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-line);
}
.btn--ghost:hover {
  border-color: var(--color-accent);
  background: rgba(168, 139, 106, 0.08);
}
.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-bg);
}

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: transparent;
  transition: box-shadow 0.5s var(--ease);
}
/* Dark scrim behind the light header text while transparent (non-scrolled),
   so brand/nav/hamburger keep AA contrast over bright areas of the hero
   image instead of depending on the photo's luminance. */
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(
    to bottom,
    rgba(31, 42, 40, 0.55),
    rgba(31, 42, 40, 0)
  );
  opacity: 1;
  transition: opacity 0.5s var(--ease);
}
.site-header.is-scrolled::before {
  opacity: 0;
}
/* スクロール後の背景＋ブラーは ::after に分離。
   .site-header 自身に backdrop-filter を置くと、fixed のドロワー
   （.nav__menu）の包含ブロックがヘッダーになり、メニューが
   ヘッダーの帯内に閉じ込められてしまうため（他LPと同じ対処）。 */
.site-header::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: rgba(244, 241, 235, 0.86);
  backdrop-filter: blur(14px);
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}
.site-header.is-scrolled::after {
  opacity: 1;
}
.site-header.is-scrolled {
  box-shadow: 0 1px 0 var(--color-line);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--color-primary);
}
.site-header:not(.is-scrolled) .brand {
  color: var(--color-bg);
}
.brand__mark {
  display: grid;
  place-items: center;
}
.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand__name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.3rem;
  letter-spacing: 0.14em;
}
.brand__sub {
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  opacity: 0.8;
}

/* nav */
.nav__menu {
  display: flex;
  align-items: center;
  gap: clamp(1.2rem, 2.4vw, 2.4rem);
}
.nav__link {
  position: relative;
  font-size: 0.92rem;
  letter-spacing: 0.05em;
  padding-block: 0.4rem;
  color: var(--color-primary);
  transition: color 0.3s var(--ease);
}
.site-header:not(.is-scrolled) .nav__link {
  color: var(--color-bg);
}
.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 0.4s var(--ease);
}
.nav__link:hover::after {
  transform: scaleX(1);
}
.nav__link--cta {
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 0.5rem 1.2rem;
}
.nav__link--cta::after {
  display: none;
}
.nav__link--cta:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white) !important;
}

/* hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  position: relative; /* z-index を効かせ、開いたドロワーより前面に出す */
  z-index: 110;
}
.nav__toggle-bar {
  display: block;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  color: var(--color-primary);
  transition: transform 0.4s var(--ease), opacity 0.3s var(--ease);
}
.site-header:not(.is-scrolled) .nav__toggle-bar {
  color: var(--color-bg);
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 76px;
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__img {
  width: 100%;
  height: 120%;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.92) contrast(0.98);
  will-change: transform;
}
.hero__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(
      100deg,
      rgba(31, 42, 40, 0.78) 0%,
      rgba(31, 42, 40, 0.48) 45%,
      rgba(31, 42, 40, 0.2) 100%
    ),
    radial-gradient(
      120% 90% at 0% 100%,
      rgba(31, 42, 40, 0.5),
      transparent 60%
    );
}
.hero__inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
  color: var(--color-bg);
  padding-block: clamp(3rem, 10vh, 6rem);
}
.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-family: var(--font-en);
  font-size: 0.9rem;
  letter-spacing: 0.18em;
  color: var(--color-secondary);
  margin-bottom: 1.6rem;
}
.eyebrow-line {
  width: 40px;
  height: 1px;
  background: var(--color-secondary);
}
.hero__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(34px, 7.5vw, 72px);
  letter-spacing: 0.08em;
  line-height: 1.45;
  margin-bottom: 1.8rem;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.25);
}
.hero__copy {
  max-width: 46ch;
  font-size: clamp(0.98rem, 1.4vw, 1.08rem);
  line-height: 2;
  color: rgba(244, 241, 235, 0.92);
  margin-bottom: 2.6rem;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.hero .btn--ghost {
  color: var(--color-bg);
  border-color: rgba(244, 241, 235, 0.45);
}
.hero .btn--ghost:hover {
  border-color: var(--color-secondary);
  background: rgba(244, 241, 235, 0.1);
}

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 1.8rem;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-bg);
}
.hero__scroll-text {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}
.hero__scroll-line {
  width: 1px;
  height: 52px;
  background: linear-gradient(var(--color-secondary), transparent);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::after {
  content: "";
  position: absolute;
  top: -50%;
  left: 0;
  width: 100%;
  height: 50%;
  background: var(--color-bg);
  animation: scrollDot 2.2s var(--ease) infinite;
}
@keyframes scrollDot {
  0% { top: -50%; }
  100% { top: 120%; }
}

/* =========================================================
   FEATURES
   ========================================================= */
.features {
  position: relative;
}
.features__list {
  display: flex;
  flex-direction: column;
  gap: clamp(3.5rem, 9vw, 7rem);
}
.feature {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: start;
  position: relative;
}
.feature::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: clamp(-1.75rem, -4.5vw, -3.5rem);
  height: 1px;
  background: var(--color-line);
}
.feature:last-child::after {
  display: none;
}
.feature--reverse {
  grid-template-columns: 1fr 140px;
}
.feature--reverse .feature__icon {
  order: 2;
  justify-self: end;
}
.feature--reverse .feature__body {
  order: 1;
}
.feature__icon {
  width: 120px;
  height: 120px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--color-line);
  color: var(--color-accent);
  background: rgba(199, 178, 153, 0.08);
}
.feature__icon svg {
  width: 56px;
  height: 56px;
}
.feature__body {
  max-width: 56ch;
}
.feature__num {
  font-family: var(--font-en);
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  color: var(--color-secondary);
  display: block;
  margin-bottom: 0.4rem;
}
.feature__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(1.4rem, 3vw, 2rem);
  letter-spacing: 0.06em;
  line-height: 1.55;
  color: var(--color-primary);
  margin-bottom: 1rem;
}
.feature__text {
  color: var(--color-text-soft);
  font-size: 1.02rem;
}

/* =========================================================
   PRICING
   ========================================================= */
.pricing {
  background: linear-gradient(180deg, transparent, rgba(199, 178, 153, 0.14) 12%, rgba(199, 178, 153, 0.14) 88%, transparent);
}
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: stretch;
}
.plan {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: clamp(1.75rem, 4vw, 2.5rem);
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}
.plan:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}
.plan--featured {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-soft);
}
.plan__ribbon {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  padding: 0.35rem 1.1rem;
  border-radius: 999px;
}
.plan__head {
  padding-bottom: 1.4rem;
  margin-bottom: 1.4rem;
  border-bottom: 1px solid var(--color-line);
}
.plan__label {
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.6rem;
}
.plan__name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.6rem;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 0.9rem;
}
.plan__name span {
  font-family: var(--font-en);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  color: var(--color-text-soft);
  font-style: italic;
}
.plan__price {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.plan__amount {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}
.plan__unit {
  font-size: 0.86rem;
  color: var(--color-text-soft);
}
.plan__note {
  margin-top: 0.5rem;
  font-size: 0.86rem;
  color: var(--color-accent);
}
.plan__list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 1.6rem;
  flex: 1 1 auto;
}
.plan__list li {
  position: relative;
  padding-left: 1.6rem;
  font-size: 0.94rem;
  color: var(--color-text);
}
.plan__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--color-accent);
  border-radius: 50%;
}
.plan__desc {
  font-size: 0.9rem;
  color: var(--color-text-soft);
  margin-bottom: 1.6rem;
}
.plan__cta {
  width: 100%;
}

/* =========================================================
   TESTIMONIALS
   ========================================================= */
.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(1.25rem, 3vw, 2rem);
}
.voice {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: clamp(1.75rem, 4vw, 2.4rem);
  display: flex;
  flex-direction: column;
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}
.voice:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}
.voice__quote {
  font-family: var(--font-en);
  font-size: 4rem;
  line-height: 0.4;
  color: var(--color-secondary);
  margin-bottom: 1.2rem;
  height: 1.6rem;
}
.voice__text {
  font-size: 0.98rem;
  line-height: 1.95;
  color: var(--color-text);
  margin-bottom: 1.8rem;
  flex: 1 1 auto;
}
.voice__person {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--color-line);
}
.voice__avatar img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  filter: saturate(0.85);
}
.voice__meta {
  display: flex;
  flex-direction: column;
  line-height: 1.4;
}
.voice__name {
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--color-primary);
}
.voice__detail {
  font-size: 0.8rem;
  color: var(--color-text-soft);
}

/* =========================================================
   FAQ
   ========================================================= */
.accordion {
  border-top: 1px solid var(--color-line);
}
.accordion__item {
  border-bottom: 1px solid var(--color-line);
}
.accordion__heading {
  margin: 0;
}
.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.5rem 0.25rem;
  text-align: left;
  font-family: var(--font-body);
  transition: color 0.3s var(--ease);
}
.accordion__trigger:hover {
  color: var(--color-accent);
}
.accordion__q {
  font-size: clamp(1rem, 2vw, 1.12rem);
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--color-primary);
  transition: color 0.3s var(--ease);
}
.accordion__trigger:hover .accordion__q {
  color: var(--color-accent);
}
.accordion__icon {
  position: relative;
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
}
.accordion__icon::before,
.accordion__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--color-accent);
  transition: transform 0.4s var(--ease);
}
.accordion__icon::before {
  width: 16px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}
.accordion__icon::after {
  width: 1.5px;
  height: 16px;
  transform: translate(-50%, -50%);
}
.accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
}
/* Forced-colors (Windows High Contrast): background fills on the pseudo-element
   bars are not painted, so the +/- state difference disappears. Provide a
   border-drawn fallback that the OS honors, keeping an open/closed indication. */
@media (forced-colors: active) {
  .accordion__icon::before,
  .accordion__icon::after {
    background: CanvasText;
    /* borders are rendered in forced-colors; ensure visible thickness */
    border-top: 1.5px solid CanvasText;
  }
  .accordion__icon::before {
    height: 0;
  }
  .accordion__icon::after {
    width: 0;
    height: 16px;
    border-top: 0;
    border-left: 1.5px solid CanvasText;
  }
  .accordion__trigger[aria-expanded="true"] .accordion__icon::after {
    /* scaleY(0) is unreliable in forced-colors; collapse via border removal */
    border-left: 0;
  }
}
.accordion__panel {
  overflow: hidden;
  /* Dedicated easing for the open glide. ease-out-cubic responds instantly
     (パッと) but decelerates gently into place (ヌルっと); the global --ease
     (ease-out-quint) is too front-loaded and snaps open. */
  transition: height 0.5s cubic-bezier(0.33, 1, 0.68, 1);
}
/* Progressive enhancement: only collapse panels when JS is available to
   reopen them. Without JS (no .js on <html>) panels stay fully visible and
   keyboard-reachable, so FAQ content is never lost. */
.js .accordion__panel {
  height: 0;
}
.accordion__inner {
  padding: 0 0.25rem 1.6rem;
  color: var(--color-text-soft);
  font-size: 0.98rem;
  max-width: 64ch;
}

/* =========================================================
   CTA / FORM
   ========================================================= */
.cta {
  background: var(--color-primary);
  color: var(--color-bg);
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 360px;
  height: 360px;
  border: 1px solid rgba(199, 178, 153, 0.22);
  border-radius: 50%;
}
.cta::after {
  content: "";
  position: absolute;
  bottom: -180px;
  left: -100px;
  width: 420px;
  height: 420px;
  border: 1px solid rgba(199, 178, 153, 0.14);
  border-radius: 50%;
}
.cta__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}
.cta__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(26px, 4.5vw, 44px);
  letter-spacing: 0.08em;
  line-height: 1.55;
  margin-bottom: 1.4rem;
}
.cta__lead {
  color: rgba(244, 241, 235, 0.85);
  max-width: 44ch;
  margin-bottom: 2.4rem;
}
.cta__contact {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}
.cta__contact li {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(199, 178, 153, 0.2);
}
.cta__contact-label {
  font-family: var(--font-en);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--color-secondary);
  min-width: 44px;
}
.cta__contact-value {
  font-size: 1.05rem;
  position: relative;
}
.cta__contact-value::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--color-secondary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.cta__contact-value:hover::after {
  transform: scaleX(1);
}
.cta__contact-hours {
  font-size: 0.8rem;
  color: rgba(244, 241, 235, 0.6);
  width: 100%;
}

/* form */
.cta__form-wrap {
  background: var(--color-bg);
  color: var(--color-text);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 4vw, 2.75rem);
  box-shadow: var(--shadow-soft);
}
.form__intro {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin-bottom: 1.8rem;
}
.form__field {
  margin-bottom: 1.4rem;
}
.form__label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 0.55rem;
  color: var(--color-primary);
}
.form__req,
.form__opt {
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  padding: 0.12rem 0.5rem;
  border-radius: 4px;
  font-weight: 500;
}
.form__req {
  background: var(--color-accent);
  color: var(--color-white);
}
.form__opt {
  background: rgba(168, 139, 106, 0.16);
  color: var(--color-accent);
}
.form__input {
  width: 100%;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.form__input::placeholder {
  color: #a89e8e;
}
.form__input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(168, 139, 106, 0.18);
}
.form__textarea {
  resize: vertical;
  min-height: 110px;
}
.form__input.is-invalid {
  border-color: #b4534b;
  box-shadow: 0 0 0 3px rgba(180, 83, 75, 0.14);
}
.form__error {
  display: block;
  min-height: 1.1rem;
  margin-top: 0.4rem;
  font-size: 0.8rem;
  color: #a8443c;
}
.form__submit {
  width: 100%;
  margin-top: 0.5rem;
}
.form__success {
  margin-top: 1.2rem;
  padding: 1rem 1.2rem;
  background: rgba(31, 42, 40, 0.06);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  color: var(--color-primary);
}
.form__privacy {
  margin-top: 1rem;
  font-size: 0.78rem;
  color: var(--color-text-soft);
  text-align: center;
}
/* JS無効時の案内（noscript 内で送信ボタンの代わりに表示） */
.form__nojs {
  margin-top: 0.5rem;
  padding: 1rem 1.2rem;
  background: rgba(31, 42, 40, 0.06);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  color: var(--color-text);
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  background: var(--color-primary);
  color: var(--color-bg);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  padding-block: clamp(3rem, 7vw, 5rem);
}
.footer__mark {
  display: inline-grid;
  place-items: center;
  color: var(--color-secondary);
  margin-bottom: 1rem;
}
.footer__name {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.6rem;
}
.footer__tagline {
  font-size: 0.92rem;
  color: rgba(244, 241, 235, 0.7);
  letter-spacing: 0.06em;
}
.footer__nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.footer__nav a {
  font-size: 0.92rem;
  color: rgba(244, 241, 235, 0.82);
  position: relative;
  display: inline-block;
}
.footer__nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--color-secondary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.footer__nav a:hover {
  color: var(--color-bg);
}
.footer__nav a:hover::after {
  transform: scaleX(1);
}
.footer__info p {
  font-size: 0.9rem;
  color: rgba(244, 241, 235, 0.72);
  margin-bottom: 0.6rem;
}
.footer__bottom {
  border-top: 1px solid rgba(199, 178, 153, 0.2);
  padding-block: 1.6rem;
}
.footer__bottom .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem;
}
.footer__note {
  font-size: 0.8rem;
  color: var(--color-secondary);
}
.footer__copy {
  font-size: 0.78rem;
  color: rgba(244, 241, 235, 0.5);
  font-family: var(--font-en);
  letter-spacing: 0.05em;
}

/* =========================================================
   REVEAL ANIMATION
   ========================================================= */
/* Progressive enhancement: only hide content when JS is available to add
   .is-visible. Without JS (no .js on <html>) everything renders visible. */
.js .reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* split-text (per character) */
[data-split] .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
  transition-delay: var(--char-delay, 0ms);
}
[data-split].is-visible .char {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 880px) {
  .cta__inner {
    grid-template-columns: 1fr;
  }
  .footer__inner {
    grid-template-columns: 1fr 1fr;
  }
  .footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  html {
    scroll-padding-top: 70px;
  }
  .header__inner {
    min-height: 64px;
  }
  .nav__toggle {
    display: flex;
  }
  .nav__menu {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(78vw, 320px);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 1.8rem;
    padding: 2rem var(--gutter);
    background: var(--color-bg);
    box-shadow: -20px 0 60px -30px rgba(0, 0, 0, 0.5);
    transform: translateX(100%);
    /* 閉状態は visibility も隠し、Tab/スクリーンリーダーが画面外メニューに到達しないようにする */
    visibility: hidden;
    transition: transform 0.5s var(--ease), visibility 0.5s var(--ease);
    z-index: 105;
  }
  .nav__menu.is-open {
    transform: translateX(0);
    visibility: visible;
  }
  .nav__link,
  .site-header:not(.is-scrolled) .nav__link {
    color: var(--color-primary);
    font-size: 1.1rem;
  }
  .nav__link--cta {
    margin-top: 0.5rem;
  }
  /* hamburger to X */
  .nav__toggle[aria-expanded="true"] .nav__toggle-bar,
  .site-header:not(.is-scrolled) .nav__toggle[aria-expanded="true"] .nav__toggle-bar {
    color: var(--color-primary);
  }
  .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);
  }

  /* features stack */
  .feature,
  .feature--reverse {
    grid-template-columns: 1fr;
    gap: 1.4rem;
  }
  .feature--reverse .feature__icon {
    order: 0;
    justify-self: start;
  }
  .feature--reverse .feature__body {
    order: 0;
  }
  .feature__icon {
    width: 88px;
    height: 88px;
  }
  .feature__icon svg {
    width: 42px;
    height: 42px;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero__actions .btn {
    width: 100%;
  }
  .footer__inner {
    grid-template-columns: 1fr;
  }
}

/* body lock when nav open */
body.nav-open {
  overflow: hidden;
}

/* nav backdrop */
.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(31, 42, 40, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease), visibility 0.4s var(--ease);
  z-index: 99;
}
.nav-backdrop.is-active {
  opacity: 1;
  visibility: visible;
}

/* =========================================================
   REDUCED MOTION
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal,
  [data-split] .char {
    opacity: 1 !important;
    transform: none !important;
  }
  .hero__scroll-line::after {
    display: none;
  }
}