/* =========================================================
   Maple Jisho — Northern Quietude
   Design system stylesheet
   ========================================================= */

/* ---------- Design Tokens ---------- */
:root {
  /* Color palette (strict) */
  --color-base:        #F7F4EE;  /* off-white / shikkui wall */
  --color-surface:     #FFFFFF;  /* pure white / sunlit surface */
  --color-accent-red:  #C8362A;  /* maple red — ≤3% usage */
  --color-accent-green:#6B7A5A;  /* moss green — ≤5% usage */
  --color-text:        #2B2620;  /* warm dark brown (never pure black) */
  --color-sub:         #7A7268;  /* warm gray */
  --color-rule:        #E6E0D5;  /* hairline beige */
  --color-rule-soft:   #EDE7DB;
  --color-dark-bg:     #2B2620;

  /* Spacing scale (8px baseline) */
  --s-1:  8px;
  --s-2: 16px;
  --s-3: 24px;
  --s-4: 32px;
  --s-5: 48px;
  --s-6: 64px;
  --s-7: 96px;
  --s-8: 120px;
  --s-9: 160px;
  --s-10: 200px;

  /* Layout */
  --maxw: 1280px;
  --pad-x: 5vw;

  /* Typography */
  --font-serif-jp: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-sans-jp:  "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-serif-en: "Cormorant Garamond", "EB Garamond", Georgia, serif;
  --font-sans-en:  "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-hand:     "Caveat", "Yuji Syuku", cursive;

  /* Motion */
  --ease-quiet: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fade: 1.2s;
  --dur-hover: 0.6s;
}

/* ---------- Reset ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans-jp);
  font-weight: 300;
  font-size: 15px;
  line-height: 2.0;
  color: var(--color-text);
  background-color: var(--color-base);
  letter-spacing: 0.04em;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.4s var(--ease-quiet), color 0.4s var(--ease-quiet);
}

a:hover {
  opacity: 0.65;
}

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

/* ---------- Typography utilities ---------- */
.serif-jp { font-family: var(--font-serif-jp); font-weight: 400; letter-spacing: 0.1em; }
.serif-en { font-family: var(--font-serif-en); font-weight: 400; letter-spacing: 0.02em; }
.sans-en  { font-family: var(--font-sans-en); font-weight: 300; letter-spacing: 0.2em; text-transform: uppercase; }
.caption  { font-family: var(--font-sans-en); font-size: 11px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--color-sub); }
.sub      { color: var(--color-sub); }

/* ---------- Layout containers ---------- */
.container {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

section {
  position: relative;
}

.section-pad {
  padding-block: var(--s-8);
}

.section-pad-lg {
  padding-block: var(--s-9);
}

/* ---------- Hairline rules ---------- */
.rule {
  border: 0;
  border-top: 1px solid var(--color-rule);
  width: 100%;
}

.rule-short {
  width: 48px;
  border-top: 1px solid var(--color-text);
  margin: var(--s-3) 0;
}

/* =========================================================
   01. Header (fixed minimal)
   ========================================================= */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  padding: var(--s-3) var(--pad-x);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  transition: background-color 0.6s var(--ease-quiet), backdrop-filter 0.6s var(--ease-quiet), padding 0.4s var(--ease-quiet);
}

.site-header.is-scrolled {
  background-color: rgba(247, 244, 238, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  padding-block: var(--s-2);
  border-bottom: 1px solid var(--color-rule);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 28px;
  height: 28px;
  display: block;
}

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

.brand-en {
  font-family: var(--font-serif-en);
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

.brand-jp {
  font-family: var(--font-sans-jp);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--color-sub);
}

.nav-list {
  list-style: none;
  display: flex;
  gap: var(--s-4);
}

.nav-list a {
  font-family: var(--font-sans-en);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-text);
  position: relative;
  padding-bottom: 2px;
}

.nav-list a::after {
  content: "";
  position: absolute;
  inset: auto 0 0 50%;
  width: 0;
  height: 1px;
  background: var(--color-accent-red);
  transition: width 0.5s var(--ease-quiet), left 0.5s var(--ease-quiet);
}

.nav-list a:hover {
  opacity: 1;
}

.nav-list a:hover::after {
  width: 100%;
  left: 0;
}

.nav-cta {
  font-family: var(--font-serif-jp);
  font-size: 13px;
  border: 1px solid var(--color-text);
  padding: 10px 22px;
  letter-spacing: 0.16em;
  transition: background-color 0.4s var(--ease-quiet), color 0.4s var(--ease-quiet);
}

.nav-cta:hover {
  background-color: var(--color-text);
  color: var(--color-base);
  opacity: 1;
}

/* Mobile menu trigger */
.menu-toggle {
  display: none;
  width: 32px;
  height: 24px;
  position: relative;
}

.menu-toggle span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-text);
  transition: transform 0.4s var(--ease-quiet), opacity 0.4s var(--ease-quiet);
}

.menu-toggle span:nth-child(1) { top: 6px; }
.menu-toggle span:nth-child(2) { top: 14px; width: 70%; }
.menu-toggle span:nth-child(3) { top: 22px; }

.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* =========================================================
   02. Hero (100vh, asymmetric 40/60)
   ========================================================= */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 40% 60%;
  position: relative;
  overflow: hidden;
  background-color: var(--color-base);
}

.hero-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 var(--pad-x) 0 var(--pad-x);
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  font-family: var(--font-sans-en);
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-sub);
  margin-bottom: var(--s-4);
}

.hero-eyebrow::before {
  content: "";
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--color-sub);
  vertical-align: middle;
  margin-right: 14px;
  transform: translateY(-2px);
}

.hero-headline {
  font-family: var(--font-serif-jp);
  font-weight: 400;
  font-size: clamp(28px, 3.4vw, 46px);
  line-height: 1.7;
  letter-spacing: 0.12em;
  color: var(--color-text);
  margin-bottom: var(--s-5);
}

.hero-headline em {
  font-style: normal;
  color: var(--color-accent-red);
}

.hero-sub {
  font-family: var(--font-sans-jp);
  font-weight: 300;
  font-size: 14px;
  line-height: 2.2;
  color: var(--color-sub);
  letter-spacing: 0.1em;
  margin-bottom: var(--s-6);
  max-width: 32em;
}

.hero-signature {
  font-family: var(--font-serif-en);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--color-sub);
  font-style: italic;
}

.hero-image {
  position: relative;
  overflow: hidden;
}

.hero-image picture,
.hero-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  will-change: transform;
  animation: heroZoom 15s var(--ease-quiet) forwards;
}

@keyframes heroZoom {
  from { transform: scale(1); }
  to   { transform: scale(1.08); }
}

.hero-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(247,244,238,0.6) 0%, rgba(247,244,238,0) 30%);
  pointer-events: none;
}

.hero-scroll {
  position: absolute;
  right: var(--pad-x);
  bottom: var(--s-5);
  writing-mode: vertical-rl;
  font-family: var(--font-sans-en);
  font-size: 10px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-base);
  text-shadow: 0 1px 6px rgba(43, 38, 32, 0.4);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-scroll::after {
  content: "";
  display: block;
  width: 1px;
  height: 56px;
  background: var(--color-base);
  animation: scrollLine 2.4s ease-in-out infinite;
  transform-origin: top;
}

@keyframes scrollLine {
  0%, 100% { transform: scaleY(0.3); opacity: 0.4; }
  50%      { transform: scaleY(1);    opacity: 1; }
}

/* =========================================================
   03. Intro (quiet empathy)
   ========================================================= */
.intro {
  padding-block: var(--s-10);
  text-align: center;
  background: var(--color-surface);
}

.intro-text {
  max-width: 680px;
  margin: 0 auto;
  font-family: var(--font-serif-jp);
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 2.4;
  letter-spacing: 0.14em;
  color: var(--color-text);
}

.intro-text span {
  display: block;
}

.intro-text span + span {
  margin-top: 1.6em;
}

.intro-svg {
  max-width: 460px;
  margin: var(--s-7) auto 0;
  opacity: 0.6;
}

/* =========================================================
   04. Reasons (zig-zag, asymmetric)
   ========================================================= */
.reasons {
  background: var(--color-base);
  padding-block: var(--s-9);
}

.section-header {
  text-align: center;
  margin-bottom: var(--s-8);
}

.section-eyebrow {
  font-family: var(--font-sans-en);
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-accent-green);
  margin-bottom: var(--s-2);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

.section-eyebrow::before,
.section-eyebrow::after {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--color-accent-green);
}

.section-title {
  font-family: var(--font-serif-jp);
  font-weight: 400;
  font-size: clamp(24px, 2.6vw, 36px);
  letter-spacing: 0.14em;
  color: var(--color-text);
  line-height: 1.6;
}

.section-title-en {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 14px;
  color: var(--color-sub);
  letter-spacing: 0.08em;
  display: block;
  margin-top: var(--s-2);
}

.reason {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-8);
  align-items: center;
  margin-bottom: var(--s-9);
  position: relative;
}

.reason:last-child {
  margin-bottom: 0;
}

.reason--reverse .reason-figure {
  order: 2;
}

.reason--reverse .reason-body {
  order: 1;
}

.reason-figure {
  position: relative;
}

.reason-figure img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  transition: transform var(--dur-hover) var(--ease-quiet),
              box-shadow var(--dur-hover) var(--ease-quiet);
}

.reason-figure:hover img {
  transform: scale(1.04);
  box-shadow: 0 30px 60px -20px rgba(43, 38, 32, 0.25);
}

.reason-figure--savoy img {
  /* Aalto Savoy Vase inspired silhouette — only one occurrence */
  clip-path: polygon(
    20% 0%, 80% 0%,
    92% 8%, 88% 18%, 96% 30%,
    80% 42%, 96% 56%, 88% 72%, 92% 88%,
    80% 100%, 20% 100%,
    8% 88%, 12% 72%, 4% 56%, 20% 42%,
    4% 30%, 12% 18%, 8% 8%
  );
}

.reason-numeral {
  position: absolute;
  top: -40px;
  left: -10px;
  font-family: var(--font-serif-en);
  font-size: clamp(120px, 14vw, 200px);
  font-weight: 300;
  color: var(--color-rule);
  z-index: 0;
  pointer-events: none;
  line-height: 1;
  letter-spacing: -0.04em;
}

.reason--reverse .reason-numeral {
  left: auto;
  right: -10px;
}

.reason-body {
  position: relative;
  z-index: 1;
}

.reason-tag {
  font-family: var(--font-sans-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent-green);
  margin-bottom: var(--s-3);
}

.reason-title {
  font-family: var(--font-serif-jp);
  font-weight: 400;
  font-size: clamp(22px, 2.2vw, 30px);
  line-height: 1.7;
  letter-spacing: 0.12em;
  color: var(--color-text);
  margin-bottom: var(--s-3);
}

.reason-text {
  font-size: 15px;
  line-height: 2.2;
  color: var(--color-text);
  max-width: 32em;
}

.reason-meta {
  margin-top: var(--s-4);
  padding-top: var(--s-3);
  border-top: 1px solid var(--color-rule);
  font-family: var(--font-sans-en);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-sub);
}

/* =========================================================
   05. Architect's Eye (signature section)
   ========================================================= */
.architect-eye {
  background: var(--color-surface);
  padding-block: var(--s-9);
  position: relative;
}

.architect-eye::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("/static/images/birch-texture.webp");
  background-size: 400px;
  background-repeat: repeat;
  opacity: 0.04;
  pointer-events: none;
}

.architect-eye .container {
  position: relative;
}

.eye-intro {
  max-width: 720px;
  margin: 0 auto var(--s-8);
  text-align: center;
  font-family: var(--font-serif-jp);
  font-size: 17px;
  line-height: 2.4;
  letter-spacing: 0.1em;
  color: var(--color-text);
}

.eye-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-7) var(--s-8);
}

.eye-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--s-4);
  align-items: start;
  padding-block: var(--s-3);
  border-top: 1px solid var(--color-rule);
}

.eye-sketch {
  width: 110px;
  height: 110px;
  color: var(--color-accent-green);
}

.eye-sketch svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  stroke-width: 1.2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.eye-item-num {
  font-family: var(--font-serif-en);
  font-size: 13px;
  letter-spacing: 0.24em;
  color: var(--color-accent-red);
  margin-bottom: var(--s-1);
}

.eye-item-title {
  font-family: var(--font-serif-jp);
  font-weight: 400;
  font-size: 20px;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin-bottom: var(--s-2);
}

.eye-item-text {
  font-size: 14px;
  line-height: 2.0;
  color: var(--color-sub);
}

/* =========================================================
   06. President (full-width image + quote)
   ========================================================= */
.president {
  background: var(--color-base);
  padding-block: var(--s-9) 0;
}

.president-figure {
  width: 100%;
  height: 70vh;
  max-height: 760px;
  overflow: hidden;
  margin-bottom: var(--s-9);
  position: relative;
}

.president-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 2s var(--ease-quiet);
}

.president-figure:hover img {
  transform: scale(1.03);
}

.president-body {
  max-width: 720px;
  margin: 0 auto;
  padding-bottom: var(--s-9);
}

.president-eyebrow {
  font-family: var(--font-sans-en);
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-accent-green);
  margin-bottom: var(--s-3);
  text-align: center;
}

.president-title {
  font-family: var(--font-serif-jp);
  font-weight: 400;
  font-size: clamp(22px, 2.2vw, 30px);
  letter-spacing: 0.16em;
  text-align: center;
  margin-bottom: var(--s-7);
  color: var(--color-text);
}

.president-text {
  font-size: 15px;
  line-height: 2.3;
  letter-spacing: 0.06em;
  color: var(--color-text);
  margin-bottom: var(--s-4);
}

.president-quote {
  font-family: var(--font-serif-jp);
  font-style: italic;
  font-size: clamp(22px, 2vw, 28px);
  line-height: 2;
  letter-spacing: 0.14em;
  color: var(--color-accent-red);
  text-align: center;
  margin: var(--s-7) 0;
  padding-block: var(--s-5);
  border-top: 1px solid var(--color-rule);
  border-bottom: 1px solid var(--color-rule);
}

.president-sign {
  text-align: right;
  margin-top: var(--s-5);
}

.president-sign-name {
  font-family: var(--font-hand);
  font-size: 32px;
  color: var(--color-text);
  line-height: 1;
  letter-spacing: 0.04em;
}

.president-sign-role {
  font-family: var(--font-sans-en);
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-sub);
  margin-top: var(--s-1);
}

/* =========================================================
   07. Services
   ========================================================= */
.services {
  background: var(--color-surface);
  padding-block: var(--s-9);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--color-rule);
  border: 1px solid var(--color-rule);
}

.service-card {
  background: var(--color-surface);
  padding: var(--s-6) var(--s-5);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  transition: background-color 0.5s var(--ease-quiet);
}

.service-card:hover {
  background: var(--color-base);
}

.service-icon {
  width: 56px;
  height: 56px;
  color: var(--color-accent-green);
}

.service-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  stroke-width: 1;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-num {
  font-family: var(--font-serif-en);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--color-accent-red);
}

.service-title {
  font-family: var(--font-serif-jp);
  font-weight: 400;
  font-size: 19px;
  letter-spacing: 0.12em;
  color: var(--color-text);
}

.service-text {
  font-size: 14px;
  line-height: 2.0;
  color: var(--color-sub);
}

/* =========================================================
   08. Area (map)
   ========================================================= */
.area {
  background: var(--color-base);
  padding-block: var(--s-9);
}

.area-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--s-8);
  align-items: center;
}

.area-body .section-eyebrow {
  justify-content: flex-start;
  margin-bottom: var(--s-3);
}

.area-body .section-eyebrow::after { display: none; }

.area-body .section-title {
  text-align: left;
  margin-bottom: var(--s-4);
}

.area-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-2) var(--s-4);
  margin-top: var(--s-5);
}

.area-list li {
  font-family: var(--font-serif-jp);
  font-size: 15px;
  letter-spacing: 0.12em;
  padding-bottom: var(--s-1);
  border-bottom: 1px solid var(--color-rule);
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.area-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent-red);
  flex-shrink: 0;
  transform: translateY(-2px);
}

.area-map {
  position: relative;
  aspect-ratio: 1 / 1;
}

.area-map svg {
  width: 100%;
  height: 100%;
}

.area-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: var(--s-5);
  padding: 12px 20px;
  border: 1px solid var(--color-accent-green);
  font-family: var(--font-serif-jp);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--color-accent-green);
}

.area-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--color-accent-green);
  transform: rotate(45deg);
}

/* =========================================================
   09. Flow (timeline)
   ========================================================= */
.flow {
  background: var(--color-surface);
  padding-block: var(--s-9);
}

.flow-list {
  max-width: 820px;
  margin: 0 auto;
  position: relative;
  list-style: none;
}

.flow-list::before {
  content: "";
  position: absolute;
  left: 60px;
  top: 20px;
  bottom: 20px;
  width: 1px;
  background: var(--color-rule);
}

.flow-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--s-5);
  align-items: start;
  padding-block: var(--s-5);
  position: relative;
}

.flow-num {
  font-family: var(--font-serif-jp);
  font-size: 42px;
  font-weight: 400;
  color: var(--color-accent-red);
  text-align: center;
  line-height: 1;
  background: var(--color-surface);
  padding: 8px 0 16px;
  z-index: 1;
  letter-spacing: 0;
}

.flow-num small {
  display: block;
  font-family: var(--font-sans-en);
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--color-sub);
  margin-top: var(--s-1);
}

.flow-body-title {
  font-family: var(--font-serif-jp);
  font-weight: 400;
  font-size: 20px;
  letter-spacing: 0.14em;
  color: var(--color-text);
  margin-bottom: var(--s-2);
}

.flow-body-text {
  font-size: 14px;
  line-height: 2.0;
  color: var(--color-sub);
  max-width: 36em;
}

/* =========================================================
   10. Media (newspaper quote)
   ========================================================= */
.media {
  background: var(--color-base);
  padding-block: var(--s-9);
}

.media-card {
  max-width: 920px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--s-7);
  align-items: center;
}

.media-figure img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.media-body .section-eyebrow {
  justify-content: flex-start;
  margin-bottom: var(--s-3);
}
.media-body .section-eyebrow::after { display: none; }

.media-source {
  font-family: var(--font-sans-en);
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-sub);
  margin-bottom: var(--s-3);
}

.media-quote {
  font-family: var(--font-serif-jp);
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 2.4;
  letter-spacing: 0.08em;
  color: var(--color-text);
  position: relative;
  padding-left: var(--s-3);
}

.media-quote::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--color-accent-red);
}

/* =========================================================
   11. FAQ
   ========================================================= */
.faq {
  background: var(--color-surface);
  padding-block: var(--s-9);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  list-style: none;
}

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

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

.faq-trigger {
  width: 100%;
  text-align: left;
  padding: var(--s-4) 0;
  display: grid;
  grid-template-columns: 40px 1fr 40px;
  gap: var(--s-3);
  align-items: center;
  font-family: var(--font-serif-jp);
  font-size: 16px;
  letter-spacing: 0.1em;
  color: var(--color-text);
  cursor: pointer;
}

.faq-q {
  font-family: var(--font-serif-en);
  font-style: italic;
  color: var(--color-accent-red);
  font-size: 18px;
}

.faq-toggle {
  position: relative;
  width: 18px;
  height: 18px;
  justify-self: end;
}

.faq-toggle::before,
.faq-toggle::after {
  content: "";
  position: absolute;
  background: var(--color-text);
  transition: transform 0.4s var(--ease-quiet);
}

.faq-toggle::before {
  left: 0; right: 0; top: 50%;
  height: 1px;
  transform: translateY(-0.5px);
}

.faq-toggle::after {
  top: 0; bottom: 0; left: 50%;
  width: 1px;
  transform: translateX(-0.5px);
}

.faq-item.is-open .faq-toggle::after {
  transform: translateX(-0.5px) scaleY(0);
}

.faq-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s var(--ease-quiet);
}

.faq-answer {
  display: grid;
  grid-template-columns: 40px 1fr 40px;
  gap: var(--s-3);
  padding-bottom: var(--s-5);
  font-size: 14px;
  line-height: 2.2;
  color: var(--color-sub);
}

.faq-answer > span:first-child {
  font-family: var(--font-serif-en);
  font-style: italic;
  color: var(--color-accent-green);
  font-size: 18px;
}

/* =========================================================
   12. Contact
   ========================================================= */
.contact {
  background: var(--color-surface);
  padding-block: var(--s-9);
}

.contact-title {
  font-family: var(--font-serif-jp);
  font-weight: 400;
  font-size: clamp(26px, 3vw, 40px);
  letter-spacing: 0.14em;
  text-align: center;
  margin-bottom: var(--s-3);
  color: var(--color-text);
  line-height: 1.7;
}

.contact-lead {
  text-align: center;
  font-size: 14px;
  line-height: 2.2;
  color: var(--color-sub);
  max-width: 540px;
  margin: 0 auto var(--s-8);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  gap: var(--s-6);
  align-items: stretch;
  max-width: 1040px;
  margin: 0 auto;
}

.contact-divider {
  background: var(--color-rule);
  width: 1px;
}

.contact-block {
  padding: var(--s-3) 0;
}

.contact-label {
  font-family: var(--font-sans-en);
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent-green);
  margin-bottom: var(--s-3);
}

.contact-tel {
  font-family: var(--font-serif-en);
  font-size: clamp(34px, 4vw, 48px);
  letter-spacing: 0.04em;
  color: var(--color-text);
  line-height: 1;
  display: block;
  margin-bottom: var(--s-2);
}

.contact-hours {
  font-size: 13px;
  color: var(--color-sub);
  line-height: 2.0;
}

.contact-mail {
  font-family: var(--font-serif-en);
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--color-text);
  display: block;
  margin-bottom: var(--s-4);
  word-break: break-all;
}

.contact-button {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-serif-jp);
  font-size: 14px;
  letter-spacing: 0.16em;
  color: var(--color-text);
  border: 1px solid var(--color-text);
  padding: 16px 28px;
  background: transparent;
  cursor: pointer;
  transition: background-color 0.5s var(--ease-quiet), color 0.5s var(--ease-quiet), gap 0.5s var(--ease-quiet);
}

.contact-button:hover {
  background: var(--color-text);
  color: var(--color-base);
  gap: 22px;
  opacity: 1;
}

.contact-button span:last-child {
  font-family: var(--font-serif-en);
  font-size: 16px;
}

/* =========================================================
   13. Footer
   ========================================================= */
.site-footer {
  background: var(--color-dark-bg);
  color: var(--color-base);
  padding-block: var(--s-9) var(--s-5);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
  gap: var(--s-6);
  padding-bottom: var(--s-7);
  border-bottom: 1px solid rgba(247, 244, 238, 0.15);
}

.footer-brand .brand-en {
  color: var(--color-base);
}

.footer-brand .brand-jp {
  color: rgba(247, 244, 238, 0.6);
}

.footer-brand p {
  margin-top: var(--s-4);
  font-size: 13px;
  line-height: 2.0;
  color: rgba(247, 244, 238, 0.7);
}

.footer-col h4 {
  font-family: var(--font-sans-en);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(247, 244, 238, 0.5);
  margin-bottom: var(--s-3);
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  font-size: 13px;
  line-height: 2.2;
  color: rgba(247, 244, 238, 0.85);
}

.footer-col a:hover {
  color: var(--color-accent-red);
  opacity: 1;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--s-4);
  flex-wrap: wrap;
  gap: var(--s-2);
}

.footer-copy {
  font-family: var(--font-sans-en);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(247, 244, 238, 0.5);
}

.footer-license {
  font-size: 12px;
  color: rgba(247, 244, 238, 0.6);
}

/* =========================================================
   Reveal animations (scroll-triggered)
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--dur-fade) var(--ease-quiet),
              transform var(--dur-fade) var(--ease-quiet);
  transition-delay: 0.05s;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.15s; }
.reveal-delay-2 { transition-delay: 0.30s; }
.reveal-delay-3 { transition-delay: 0.45s; }

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal.is-visible,
  .hero-image img,
  .hero-scroll::after {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* =========================================================
   Responsive (1024 / 768 / 480)
   ========================================================= */
@media (max-width: 1024px) {
  :root {
    --s-8: 96px;
    --s-9: 120px;
    --s-10: 140px;
  }
  .reason { gap: var(--s-6); }
  .eye-grid { gap: var(--s-5) var(--s-6); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root {
    --pad-x: 6vw;
    --s-7: 64px;
    --s-8: 80px;
    --s-9: 96px;
    --s-10: 120px;
  }

  body { font-size: 14px; }

  .nav-list, .nav-cta { display: none; }
  .menu-toggle { display: block; }

  /* Mobile nav drawer */
  .nav-drawer {
    position: fixed;
    inset: 0;
    background: var(--color-base);
    z-index: 90;
    padding: 100px var(--pad-x) var(--s-6);
    display: flex;
    flex-direction: column;
    gap: var(--s-4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-20px);
    transition: opacity 0.5s var(--ease-quiet), transform 0.5s var(--ease-quiet), visibility 0s 0.5s;
  }
  .nav-drawer.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition: opacity 0.5s var(--ease-quiet), transform 0.5s var(--ease-quiet);
  }
  .nav-drawer a {
    font-family: var(--font-serif-jp);
    font-size: 20px;
    letter-spacing: 0.14em;
    padding-block: var(--s-2);
    border-bottom: 1px solid var(--color-rule);
  }

  /* Hero stacks */
  .hero {
    grid-template-columns: 1fr;
    grid-template-rows: 50vh 50vh;
    min-height: 100vh;
  }
  .hero-image { order: -1; }
  .hero-text {
    padding-block: var(--s-5);
    justify-content: flex-start;
  }
  .hero-headline { font-size: 26px; line-height: 1.9; }
  .hero-scroll { display: none; }

  /* Reasons stack */
  .reason {
    grid-template-columns: 1fr;
    gap: var(--s-4);
    margin-bottom: var(--s-7);
  }
  .reason--reverse .reason-figure { order: -1; }
  .reason--reverse .reason-body { order: 0; }
  .reason-figure { order: -1; }
  .reason-numeral { font-size: 90px; top: -20px; left: -5px; }
  .reason--reverse .reason-numeral { left: -5px; right: auto; }

  /* Eye grid stack */
  .eye-grid { grid-template-columns: 1fr; gap: var(--s-4); }
  .eye-item { grid-template-columns: 80px 1fr; gap: var(--s-3); }
  .eye-sketch { width: 70px; height: 70px; }

  /* Services single col */
  .services-grid { grid-template-columns: 1fr; }

  /* Area stack */
  .area-layout { grid-template-columns: 1fr; gap: var(--s-5); }

  /* Flow */
  .flow-list::before { left: 36px; }
  .flow-item { grid-template-columns: 72px 1fr; gap: var(--s-3); }
  .flow-num { font-size: 28px; }

  /* Media */
  .media-card { grid-template-columns: 1fr; gap: var(--s-4); }
  .media-figure img { aspect-ratio: 16 / 10; }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--s-5);
  }
  .contact-divider {
    height: 1px;
    width: 100%;
  }

  /* Footer */
  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--s-5);
  }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  :root { --pad-x: 24px; }
  .hero-headline { font-size: 22px; }
  .president-figure { height: 50vh; }
  .president-quote { font-size: 18px; }
  .contact-tel { font-size: 30px; }
  .contact-mail { font-size: 16px; }
}