/* =========================================================
   龍蔵院 Ryuzouin - Modern Stylesheet
   Tradition × Contemporary
   ========================================================= */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { background: none; border: 0; cursor: pointer; font: inherit; color: inherit; }
ul { list-style: none; }

/* ---------- Design Tokens ---------- */
:root {
  /* Color palette — 伝統色 traditional Japanese colors */
  --sumi:       #1a1a1a;  /* 墨 ink */
  --sumi-soft:  #2b2826;
  --shin-shu:   #8B2E2A;  /* 深朱 deep vermillion */
  --shin-shu-d: #6b221f;
  --ko-kin:     #B8925A;  /* 古金 aged gold */
  --ko-kin-l:   #d4b58a;
  --ai:         #2A3F5F;  /* 藍 indigo */
  --kinari:     #F5F0E8;  /* 生成 cream */
  --washi:      #FBF8F3;  /* 和紙 paper white */
  --hai:        #6B6560;  /* 灰 ash */
  --hai-l:      #aaa49f;
  --line:       rgba(26, 26, 26, 0.12);
  --line-light: rgba(255, 255, 255, 0.18);

  /* Type */
  --font-mincho: "Shippori Mincho", "Noto Serif JP", "游明朝", "Yu Mincho", "YuMincho", "ヒラギノ明朝 ProN", "Hiragino Mincho ProN", serif;
  --font-sans:   "Noto Sans JP", "游ゴシック", "Yu Gothic", "ヒラギノ角ゴ ProN", "Hiragino Kaku Gothic ProN", sans-serif;
  --font-latin:  "Cormorant Garamond", "Shippori Mincho", serif;

  /* Spacing */
  --container:  min(92%, 1180px);
  --container-narrow: min(92%, 900px);
  --gutter:     clamp(1.25rem, 3vw, 2rem);

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

/* ---------- Base ---------- */
body {
  font-family: var(--font-mincho);
  font-weight: 400;
  color: var(--sumi);
  background-color: var(--washi);
  line-height: 1.9;
  font-size: 16px;
  letter-spacing: 0.04em;
  overflow-x: hidden;
}

::selection { background: var(--shin-shu); color: var(--washi); }

/* ---------- Utility ---------- */
.container { width: var(--container); margin-inline: auto; }
.container-narrow { width: var(--container-narrow); margin-inline: auto; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1rem 0;
  /* Note: backdrop-filter must NOT be on this element directly,
     because it would create a containing block for fixed-position
     descendants (.nav-mobile), confining them to the header bounds. */
  transition: padding 0.4s var(--ease),
              box-shadow 0.4s var(--ease);
}
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background-color: rgba(251, 248, 243, 0);
  backdrop-filter: blur(0);
  -webkit-backdrop-filter: blur(0);
  transition: background-color 0.4s var(--ease),
              backdrop-filter 0.4s var(--ease);
  z-index: -1;
}
.site-header.is-scrolled {
  padding: 0.6rem 0;
  box-shadow: 0 1px 0 var(--line);
}
.site-header.is-scrolled::before {
  background-color: rgba(251, 248, 243, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.header-inner {
  width: var(--container);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--washi);
  transition: color 0.4s var(--ease);
}
.site-header.is-scrolled .brand { color: var(--sumi); }

.brand-mark {
  width: 2.6rem;
  height: 2.6rem;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.aoi-crest {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}
/* Aoi-mon (三つ葉葵) crest — canonical white-ground/black-ink on hero,
   inverts to black-ground/white-ink on light scrolled header */
.aoi-crest .aoi-paper {
  fill: var(--washi);
  transition: fill 0.4s var(--ease);
}
.aoi-crest .aoi-ink {
  fill: var(--sumi);
  transition: fill 0.4s var(--ease);
}
.site-header.is-scrolled .aoi-crest .aoi-paper { fill: var(--sumi); }
.site-header.is-scrolled .aoi-crest .aoi-ink { fill: var(--washi); }
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand-jp {
  font-family: var(--font-mincho);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.1em;
}
.brand-en {
  font-family: var(--font-latin);
  font-size: 0.68rem;
  letter-spacing: 0.35em;
  opacity: 0.7;
  margin-top: 2px;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-family: var(--font-mincho);
  font-size: 0.92rem;
  letter-spacing: 0.15em;
}
.nav-desktop a {
  position: relative;
  color: var(--washi);
  padding: 0.4rem 0;
  transition: color 0.3s var(--ease);
}
.site-header.is-scrolled .nav-desktop a { color: var(--sumi); }
.nav-desktop a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 0;
  height: 1px;
  background: var(--shin-shu);
  transition: width 0.4s var(--ease);
}
.nav-desktop a:hover::after { width: 100%; }
.nav-desktop a:hover { color: var(--ko-kin-l); }
.site-header.is-scrolled .nav-desktop a:hover { color: var(--shin-shu); }

.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  position: relative;
  z-index: 110;
}
.nav-toggle span {
  display: block;
  position: absolute;
  left: 6px;
  right: 6px;
  height: 1.5px;
  background: var(--washi);
  transition: all 0.3s var(--ease);
}
.site-header.is-scrolled .nav-toggle span { background: var(--sumi); }
.nav-toggle span:nth-child(1) { top: 11px; }
.nav-toggle span:nth-child(2) { top: 17px; }
.nav-toggle span:nth-child(3) { top: 23px; }
.nav-toggle.is-open span { background: var(--sumi); }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav-mobile {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  background: var(--washi);
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  padding: 5rem 1.5rem 2rem;
  font-family: var(--font-mincho);
  font-size: 1.15rem;
  letter-spacing: 0.2em;
  line-height: 1.4;
  transform: translateY(-100%);
  transition: transform 0.5s var(--ease);
  z-index: 105;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.nav-mobile.is-open { transform: translateY(0); }
.nav-mobile a {
  color: var(--sumi);
  position: relative;
  padding: 0.35rem 0.75rem;
  text-align: center;
  text-indent: 0.2em;
  display: block;
  min-width: 10rem;
}
.nav-mobile a::before {
  content: attr(data-en);
  display: block;
  font-family: var(--font-latin);
  font-size: 0.6rem;
  letter-spacing: 0.4em;
  color: var(--shin-shu);
  opacity: 0.85;
  margin-bottom: 0.2rem;
  text-align: center;
  text-indent: 0.4em;
  line-height: 1.3;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: var(--washi);
}
.hero-image {
  position: absolute;
  inset: 0;
  background-image: url(../pictures/toppage/hero_centered.jpg);
  background-color: #0a1020;
  background-size: cover;
  background-position: center;
  transform: scale(1.08);
  animation: kenburns 18s var(--ease) forwards;
}
@keyframes kenburns {
  0%   { transform: scale(1.08) translate(0, 0); }
  100% { transform: scale(1.18) translate(-1.5%, -1.5%); }
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10,16,32,0.45) 0%, rgba(10,16,32,0.2) 35%, rgba(10,16,32,0.75) 100%),
    radial-gradient(ellipse at center 65%, transparent 0%, rgba(10,16,32,0.35) 80%);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 8rem var(--gutter) 6rem;
  max-width: 900px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 1.4s var(--ease) 0.4s forwards;
}
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}
.hero-kana {
  font-family: var(--font-mincho);
  font-size: 0.85rem;
  letter-spacing: 0.6em;
  margin-bottom: 1.5rem;
  opacity: 0.85;
  text-indent: 0.6em;
}
.hero-title {
  font-family: var(--font-mincho);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: 1.75rem;
}
.hero-title span {
  display: block;
  font-size: clamp(1rem, 2.2vw, 1.4rem);
  letter-spacing: 0.5em;
  opacity: 0.9;
  margin-bottom: 1rem;
  text-indent: 0.5em;
}
.hero-title strong {
  display: block;
  font-weight: 500;
  font-size: clamp(3.5rem, 9vw, 7rem);
  letter-spacing: 0.25em;
  text-indent: 0.25em;
  text-shadow: 0 2px 40px rgba(0,0,0,0.25);
}
.hero-sub {
  font-family: var(--font-mincho);
  font-size: clamp(0.9rem, 1.4vw, 1.05rem);
  letter-spacing: 0.4em;
  margin-bottom: 0.75rem;
  text-indent: 0.4em;
}
.hero-en {
  font-family: var(--font-latin);
  font-size: 0.75rem;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  opacity: 0.7;
  text-indent: 0.45em;
}
.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 3rem;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-latin);
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  opacity: 0.75;
  transition: opacity 0.3s var(--ease);
}
.hero-scroll:hover { opacity: 1; }
.hero-scroll .scroll-line {
  display: block;
  width: 1px;
  height: 50px;
  background: linear-gradient(180deg, var(--washi) 0%, var(--washi) 50%, transparent 50%, transparent 100%);
  background-size: 100% 200%;
  animation: scrollLine 2.2s var(--ease) infinite;
}
@keyframes scrollLine {
  0%   { background-position: 0% 0%; }
  100% { background-position: 0% -100%; }
}

/* ---------- Address Strip ---------- */
.banner-strip {
  background: var(--sumi);
  color: var(--washi);
  font-family: var(--font-mincho);
  font-size: 0.82rem;
  letter-spacing: 0.2em;
  text-align: center;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--ko-kin);
}
.banner-strip strong {
  font-weight: 500;
  color: var(--ko-kin-l);
  margin-right: 1rem;
}

/* ---------- Section base ---------- */
.section {
  padding: clamp(5rem, 10vw, 8rem) 0;
  position: relative;
}
.section-head {
  text-align: center;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.section-en {
  display: inline-block;
  font-family: var(--font-latin);
  font-size: 0.75rem;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--shin-shu);
  margin-bottom: 1rem;
  text-indent: 0.5em;
}
.section-title {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  letter-spacing: 0.2em;
  color: var(--sumi);
  text-indent: 0.2em;
  line-height: 1.3;
  margin-bottom: 1.5rem;
}
.section-line {
  display: block;
  width: 48px;
  height: 1px;
  background: var(--ko-kin);
  margin: 1.25rem auto 0;
  position: relative;
}
.section-line::before,
.section-line::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ko-kin);
  transform: translateY(-50%);
}
.section-line::before { left: -12px; }
.section-line::after  { right: -12px; }

.section-head--light .section-en { color: var(--ko-kin-l); }
.section-head--light .section-title { color: var(--washi); }
.section-head--light .section-line { background: var(--ko-kin-l); }
.section-head--light .section-line::before,
.section-head--light .section-line::after { background: var(--ko-kin-l); }

.section-foot {
  text-align: center;
  margin-top: clamp(2.5rem, 5vw, 4rem);
}

/* ---------- Buttons / Links ---------- */
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--font-mincho);
  font-size: 0.9rem;
  letter-spacing: 0.25em;
  padding: 0.9rem 2rem;
  border: 1px solid currentColor;
  color: var(--sumi);
  background-color: transparent;
  transition: background-color 0.4s var(--ease),
              color 0.3s var(--ease),
              border-color 0.3s var(--ease);
}
.btn-ghost::after {
  content: "→";
  font-family: var(--font-latin);
  transition: transform 0.3s var(--ease);
}
.btn-ghost:hover {
  background-color: var(--shin-shu);
  color: var(--washi);
  border-color: var(--shin-shu);
}
.btn-ghost:hover::after { transform: translateX(4px); }

/* Variant: btn-ghost on dark sections (history / access) */
.history .btn-ghost,
.access .btn-ghost {
  color: var(--washi);
  border-color: var(--washi);
}
.history .btn-ghost:hover,
.access .btn-ghost:hover {
  background-color: var(--ko-kin);
  color: var(--sumi);
  border-color: var(--ko-kin);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mincho);
  font-size: 0.95rem;
  color: var(--shin-shu);
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  transition: all 0.3s var(--ease);
}
.link-arrow::after {
  content: "→";
  transition: transform 0.3s var(--ease);
}
.link-arrow:hover { color: var(--shin-shu-d); }
.link-arrow:hover::after { transform: translateX(5px); }

.btn-link {
  display: inline-block;
  font-family: var(--font-mincho);
  font-size: 1rem;
  letter-spacing: 0.2em;
  color: var(--sumi);
  border-bottom: 1px solid var(--ko-kin);
  padding-bottom: 4px;
  transition: all 0.3s var(--ease);
}
.btn-link:hover { color: var(--shin-shu); letter-spacing: 0.25em; }

/* ---------- About section ---------- */
.about {
  padding: clamp(5rem, 10vw, 8rem) 0;
  background: var(--washi);
  position: relative;
}
.about::before {
  content: "龍";
  position: absolute;
  top: 2rem;
  right: 4%;
  font-family: var(--font-mincho);
  font-size: clamp(8rem, 20vw, 18rem);
  color: var(--kinari);
  line-height: 1;
  z-index: 0;
  pointer-events: none;
  user-select: none;
}
.about .container { position: relative; z-index: 1; }
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.about-text .lead {
  font-family: var(--font-mincho);
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  line-height: 2;
  margin-bottom: 1.5rem;
  color: var(--sumi);
}
.about-text p {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--hai);
  margin-bottom: 2rem;
}
.about-news {
  border-left: 1px solid var(--ko-kin);
  padding-left: 2rem;
}
.about-news h3 {
  font-family: var(--font-mincho);
  font-size: 1.15rem;
  letter-spacing: 0.2em;
  font-weight: 500;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}
.about-news h3 span {
  font-family: var(--font-latin);
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--ko-kin);
}
.about-news ul li {
  padding: 0.9rem 0;
  border-bottom: 1px dashed var(--line);
  font-size: 0.9rem;
}
.about-news ul li:last-child { border-bottom: 0; }
.about-news time {
  display: block;
  font-family: var(--font-latin);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--shin-shu);
  margin-bottom: 0.25rem;
}

/* ---------- History section ---------- */
.history {
  padding: clamp(6rem, 12vw, 10rem) 0;
  color: var(--washi);
  position: relative;
  overflow: hidden;
}
.history-bg {
  position: absolute;
  inset: 0;
  background-image: url(../pictures/toppage/history_back.jpg);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  z-index: 0;
}
.history-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at center, rgba(26,26,26,0.55) 0%, rgba(26,26,26,0.85) 100%),
    linear-gradient(180deg, rgba(42, 63, 95, 0.6) 0%, rgba(26, 26, 26, 0.92) 100%);
}
.history .container { position: relative; z-index: 1; max-width: 820px; }
.history-sub {
  font-family: var(--font-mincho);
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  letter-spacing: 0.15em;
  font-weight: 400;
  color: var(--ko-kin-l);
  text-align: center;
  margin-bottom: 2.5rem;
  position: relative;
}
.history-sub::before,
.history-sub::after {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--ko-kin-l);
  vertical-align: middle;
  margin: 0 1rem;
  opacity: 0.6;
}
.history p {
  font-family: var(--font-mincho);
  font-size: 1rem;
  line-height: 2.1;
  margin-bottom: 1.5rem;
  color: rgba(251, 248, 243, 0.92);
  text-align: justify;
}
.history .section-foot { margin-top: 3rem; }

/* ---------- Keidai section ---------- */
.keidai {
  padding: clamp(5rem, 10vw, 8rem) 0;
  background: var(--kinari);
  position: relative;
}
.botan-highlight {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.botan-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: 0 20px 60px rgba(26,26,26,0.15);
}
.botan-image::before {
  content: "";
  position: absolute;
  inset: 1rem;
  border: 1px solid rgba(255,255,255,0.4);
  z-index: 2;
  pointer-events: none;
}
.botan-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease);
}
.botan-image:hover img { transform: scale(1.04); }
.botan-text .eyebrow {
  font-family: var(--font-latin);
  font-size: 0.78rem;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--shin-shu);
  margin-bottom: 1rem;
}
.botan-text h3 {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  line-height: 1.55;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}
.botan-text p {
  font-size: 0.98rem;
  line-height: 2;
  color: var(--hai);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.gallery-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 4;
  background: var(--sumi);
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease), opacity 0.5s;
}
.gallery-item:hover img { transform: scale(1.08); opacity: 0.9; }

/* ---------- Events section ---------- */
.events {
  padding: clamp(5rem, 10vw, 8rem) 0;
  background: var(--washi);
  position: relative;
}
.events::before {
  content: "行事";
  position: absolute;
  top: 4rem;
  left: -1rem;
  font-family: var(--font-mincho);
  font-size: clamp(6rem, 16vw, 14rem);
  color: var(--kinari);
  line-height: 1;
  writing-mode: vertical-rl;
  z-index: 0;
  pointer-events: none;
  user-select: none;
}
.events .container { position: relative; z-index: 1; max-width: 860px; }

.event-list { border-top: 1px solid var(--line); }
.event-list li {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 2rem;
  align-items: center;
  padding: 1.5rem 0.5rem;
  border-bottom: 1px solid var(--line);
  transition: background 0.3s var(--ease), padding 0.3s var(--ease);
}
.event-list li:hover {
  background: var(--kinari);
  padding-inline: 1rem;
}
.event-date {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  font-family: var(--font-mincho);
  min-width: 110px;
}
.event-year {
  font-family: var(--font-latin);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--ko-kin);
  margin-bottom: 0.15rem;
}
.event-day {
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--sumi);
  line-height: 1.2;
}
.event-dow {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--hai);
  margin-top: 0.2rem;
}
.event-time {
  font-family: var(--font-latin);
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--shin-shu);
  min-width: 70px;
}
.event-name {
  font-family: var(--font-mincho);
  font-size: 1.05rem;
  letter-spacing: 0.1em;
  color: var(--sumi);
  position: relative;
  padding-left: 1.25rem;
}
.event-name::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  background: var(--shin-shu);
  border-radius: 50%;
  transform: translateY(-50%);
}

/* ---------- Access section ---------- */
.access {
  padding: clamp(5rem, 10vw, 8rem) 0;
  background: var(--sumi);
  color: var(--washi);
  position: relative;
}
.access .section-title { color: var(--washi); }
.access .section-en { color: var(--ko-kin-l); }
.access .section-line { background: var(--ko-kin-l); }
.access .section-line::before,
.access .section-line::after { background: var(--ko-kin-l); }

.access-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.access-info h3 {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  letter-spacing: 0.15em;
  margin-bottom: 2rem;
  line-height: 1.5;
  color: var(--ko-kin-l);
}
.access-info dl {
  margin-bottom: 2.5rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.6rem 1.5rem;
  font-size: 0.95rem;
}
.access-info dt {
  font-family: var(--font-mincho);
  letter-spacing: 0.25em;
  color: var(--hai-l);
  min-width: 4rem;
}
.access-info dd { line-height: 1.8; }
.access-info a { color: var(--washi); border-bottom: 1px solid var(--ko-kin); padding-bottom: 2px; transition: color 0.3s; }
.access-info a:hover { color: var(--ko-kin-l); }
.access-map {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--line-light);
  filter: grayscale(0.3) contrast(1.05);
  transition: filter 0.4s var(--ease);
}
.access-map:hover { filter: grayscale(0); }
.access-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

/* ---------- Other section ---------- */
.other {
  padding: clamp(4rem, 8vw, 6rem) 0;
  background: var(--washi);
  text-align: center;
}
.other .container { text-align: center; }

/* ---------- Footer ---------- */
.site-footer {
  background: #0d0d0d;
  color: var(--washi);
  padding: clamp(3rem, 6vw, 5rem) 0 2rem;
  position: relative;
  border-top: 1px solid var(--ko-kin);
}
.footer-inner {
  width: var(--container);
  margin-inline: auto;
  text-align: center;
}
.footer-brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  margin-bottom: 1.25rem;
}
.footer-jp {
  font-family: var(--font-mincho);
  font-size: 1.1rem;
  letter-spacing: 0.25em;
  color: var(--ko-kin-l);
}
.footer-en {
  font-family: var(--font-latin);
  font-size: 0.7rem;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  opacity: 0.7;
}
.footer-address {
  font-family: var(--font-mincho);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  opacity: 0.75;
  margin-bottom: 2rem;
  line-height: 1.8;
}
.copyright {
  font-family: var(--font-latin);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  opacity: 0.5;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  width: 44px;
  height: 44px;
  background: var(--sumi);
  color: var(--washi);
  border-radius: 50%;
  font-size: 1rem;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: all 0.3s var(--ease);
  z-index: 90;
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}
.back-to-top.is-visible {
  opacity: 0.9;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover { background: var(--shin-shu); opacity: 1; }

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.15s; }
.reveal-delay-2 { transition-delay: 0.3s; }
.reveal-delay-3 { transition-delay: 0.45s; }

/* =========================================================
   Sub-pages (history / keidai / events / access / fudasyo / other)
   ========================================================= */

/* Mini hero for sub-pages */
.subhero {
  position: relative;
  min-height: 55vh;
  min-height: 55svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: var(--washi);
  padding: 7rem 1rem 4rem;
}
.subhero-image {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: subheroZoom 14s var(--ease) forwards;
}
@keyframes subheroZoom {
  to { transform: scale(1.14); }
}
.subhero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(26,26,26,0.55) 0%, rgba(26,26,26,0.4) 40%, rgba(26,26,26,0.8) 100%);
}
.subhero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  opacity: 0;
  transform: translateY(24px);
  animation: fadeUp 1.2s var(--ease) 0.3s forwards;
}
.subhero-kana {
  font-family: var(--font-mincho);
  font-size: 0.8rem;
  letter-spacing: 0.6em;
  opacity: 0.85;
  margin-bottom: 1.25rem;
  text-indent: 0.6em;
}
.subhero-title {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: clamp(2rem, 5vw, 3.2rem);
  letter-spacing: 0.2em;
  text-indent: 0.2em;
  line-height: 1.3;
  margin-bottom: 1.25rem;
  text-shadow: 0 2px 30px rgba(0,0,0,0.3);
}
.subhero-en {
  font-family: var(--font-latin);
  font-size: 0.78rem;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  opacity: 0.75;
  text-indent: 0.5em;
}

/* Sub-hero background variants */
.subhero--history .subhero-image  { background-image: url(../pictures/toppage/history_back.jpg); }
.subhero--keidai  .subhero-image  { background-image: url(../pictures/toppage/keidai_back.jpg); }
.subhero--events  .subhero-image  { background-image: url(../pictures/toppage/schedule_back.jpg); }
.subhero--fudasyo .subhero-image  { background-image: url(../pictures/toppage/botan_flower.jpg); }
.subhero--access  .subhero-image  { background-image: url(../pictures/toppage/main_stop2.jpg); }
.subhero--other   .subhero-image  { background-image: url(../pictures/toppage/keidai_back.jpg); }

/* Breadcrumb */
.breadcrumb {
  width: var(--container);
  margin: 0 auto;
  padding: 1.5rem 0 1.25rem;
  font-family: var(--font-mincho);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--hai);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--hai);
  transition: color 0.3s var(--ease);
}
.breadcrumb a:hover { color: var(--shin-shu); }
.breadcrumb .sep {
  color: var(--hai-l);
  font-family: var(--font-latin);
  font-weight: 300;
}
.breadcrumb .current {
  color: var(--sumi);
}

/* Sub-page body */
.page-body {
  padding: clamp(4rem, 8vw, 7rem) 0 clamp(5rem, 9vw, 8rem);
  background: var(--washi);
  position: relative;
}
.page-body .container-narrow {
  max-width: 820px;
}

/* Decorative ink stamp */
.page-body .ink-stamp {
  position: absolute;
  top: 3rem;
  right: 6%;
  font-family: var(--font-mincho);
  font-size: clamp(6rem, 14vw, 11rem);
  line-height: 1;
  color: var(--kinari);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}
.page-body .container-narrow { position: relative; z-index: 1; }

.page-lead {
  font-family: var(--font-mincho);
  font-size: clamp(1.1rem, 1.8vw, 1.3rem);
  line-height: 2.1;
  color: var(--sumi);
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--line);
}

.page-body h2 {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: clamp(1.3rem, 2.4vw, 1.65rem);
  letter-spacing: 0.18em;
  line-height: 1.5;
  color: var(--sumi);
  margin: 3rem 0 1.75rem;
  padding: 0 0 1rem 1.25rem;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.page-body h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 4px;
  height: 1.1em;
  background: var(--shin-shu);
}
.page-body h2::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 1.25rem;
  width: 48px;
  height: 1px;
  background: var(--shin-shu);
}
.page-body h3 {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  letter-spacing: 0.18em;
  color: var(--shin-shu);
  margin: 2.5rem 0 1.25rem;
}
.page-body p {
  font-family: var(--font-mincho);
  font-size: 1rem;
  line-height: 2.15;
  margin-bottom: 1.5rem;
  color: var(--sumi-soft);
  text-align: justify;
}
.page-body p:first-letter { font-size: 1.05em; }
/* Inline text links (only inside text containers — buttons / nav links unaffected) */
.page-body :where(p, li, dt, dd, blockquote) a {
  color: var(--shin-shu);
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
  transition: color 0.3s var(--ease);
}
.page-body :where(p, li, dt, dd, blockquote) a:hover { color: var(--shin-shu-d); }

/* Info card */
.info-card {
  background: var(--kinari);
  padding: clamp(1.5rem, 3vw, 2.25rem) clamp(1.5rem, 3vw, 2.5rem);
  margin: 2.5rem 0;
  border-left: 3px solid var(--shin-shu);
  font-family: var(--font-mincho);
  position: relative;
}
.info-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 40px;
  height: 40px;
  background:
    linear-gradient(45deg, transparent 50%, var(--washi) 50%),
    var(--kinari);
}
.info-card dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem 1.75rem;
  font-size: 0.98rem;
  line-height: 1.8;
}
.info-card dt {
  letter-spacing: 0.25em;
  color: var(--hai);
  min-width: 5rem;
  padding-top: 2px;
}
.info-card dd {
  color: var(--sumi);
  font-weight: 500;
}

/* Eika (poem) display */
.eika {
  margin: 2.5rem auto;
  text-align: center;
  padding: 2.5rem 1.5rem;
  background:
    linear-gradient(var(--kinari), var(--kinari)) padding-box,
    repeating-linear-gradient(45deg, var(--ko-kin) 0 1px, transparent 1px 6px) border-box;
  border: 1px solid transparent;
}
.eika-label {
  display: block;
  font-family: var(--font-latin);
  font-size: 0.7rem;
  letter-spacing: 0.5em;
  color: var(--shin-shu);
  margin-bottom: 1.5rem;
}
.eika img {
  margin: 0 auto;
  max-width: 100%;
}

/* Image figures */
.page-figure {
  margin: 3rem 0;
  text-align: center;
}
.page-figure img {
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  box-shadow: 0 12px 30px rgba(0,0,0,0.12);
}
.page-figure figcaption {
  margin-top: 1rem;
  font-family: var(--font-mincho);
  font-size: 0.85rem;
  color: var(--hai);
  letter-spacing: 0.1em;
}

/* Page gallery */
.page-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 2.5rem 0;
}
.page-gallery figure {
  margin: 0;
  overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--sumi);
}
.page-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s var(--ease), opacity 0.3s;
}
.page-gallery figure:hover img { transform: scale(1.05); opacity: 0.92; }

/* Event table (sub-page) */
.event-table {
  width: 100%;
  margin: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  border-collapse: collapse;
}
.event-table tr {
  border-bottom: 1px solid var(--line);
  transition: background 0.3s var(--ease);
}
.event-table tr:hover { background: var(--kinari); }
.event-table td {
  padding: 1.3rem 0.75rem;
  font-family: var(--font-mincho);
  vertical-align: middle;
  font-size: 0.98rem;
}
.event-table .t-date {
  width: 34%;
  letter-spacing: 0.08em;
  color: var(--sumi);
  font-weight: 500;
}
.event-table .t-time {
  width: 18%;
  color: var(--shin-shu);
  font-family: var(--font-latin);
  letter-spacing: 0.08em;
}
.event-table .t-name {
  padding-left: 1.5rem;
  position: relative;
}
.event-table .t-name::before {
  content: "";
  position: absolute;
  left: 0.6rem;
  top: 50%;
  width: 6px;
  height: 6px;
  background: var(--shin-shu);
  border-radius: 50%;
  transform: translateY(-50%);
}

/* Page map */
.page-map {
  margin: 2.5rem 0;
  aspect-ratio: 16/9;
  overflow: hidden;
  border: 1px solid var(--line);
}
.page-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  filter: grayscale(0.25);
  transition: filter 0.4s var(--ease);
}
.page-map:hover iframe { filter: grayscale(0); }

/* Bottom page navigation */
.page-nav {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: clamp(3rem, 6vw, 5rem);
  padding-top: 2.5rem;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}

/* Other-page link list */
.other-links {
  display: grid;
  gap: 1rem;
  margin: 2rem 0;
}
.other-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: var(--kinari);
  border: 0;
  font-family: var(--font-mincho);
  font-size: 1rem;
  letter-spacing: 0.15em;
  color: var(--sumi);
  transition: background 0.3s var(--ease),
              color 0.3s var(--ease),
              padding 0.3s var(--ease);
}
.other-links a::after {
  content: "→";
  font-family: var(--font-latin);
  color: var(--shin-shu);
  transition: color 0.3s var(--ease), transform 0.3s var(--ease);
}
.other-links a:hover {
  background: var(--sumi);
  color: var(--washi);
  padding-left: 2rem;
}
.other-links a:hover::after {
  color: var(--ko-kin-l);
  transform: translateX(6px);
}
.other-links .link-en {
  font-family: var(--font-latin);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--hai);
  margin-left: auto;
  margin-right: 1rem;
  transition: color 0.3s var(--ease);
}
.other-links a:hover .link-en {
  color: var(--ko-kin-l);
}

/* Current page in nav */
.nav-desktop a.is-current { color: var(--ko-kin-l); }
.site-header.is-scrolled .nav-desktop a.is-current { color: var(--shin-shu); }
.nav-desktop a.is-current::after { width: 20px; background: var(--ko-kin); }
.site-header.is-scrolled .nav-desktop a.is-current::after { background: var(--shin-shu); }
.nav-mobile a.is-current { color: var(--shin-shu); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .about-grid,
  .botan-highlight,
  .access-grid {
    grid-template-columns: 1fr;
  }
  .about-news {
    border-left: 0;
    border-top: 1px solid var(--ko-kin);
    padding-left: 0;
    padding-top: 2rem;
    margin-top: 1rem;
  }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .gallery-item:nth-child(3) { grid-column: span 2; aspect-ratio: 16/9; }
}

@media (max-width: 720px) {
  body { font-size: 15px; }
  .nav-desktop { display: none; }
  .nav-toggle { display: block; }
  .nav-mobile { display: flex; }

  /* Header tightening */
  .header-inner { gap: 0.5rem; }
  .brand { gap: 0.5rem; }
  .brand-mark { width: 2.2rem; height: 2.2rem; }
  .brand-jp { font-size: 0.95rem; letter-spacing: 0.08em; }
  .brand-en { font-size: 0.6rem; letter-spacing: 0.3em; }

  .hero-content { padding: 6rem 1.25rem 5rem; }
  .hero-title strong { letter-spacing: 0.15em; text-indent: 0.15em; }
  .hero-kana { letter-spacing: 0.4em; text-indent: 0.4em; font-size: 0.75rem; }

  .history-bg { background-attachment: scroll; }

  .gallery { grid-template-columns: 1fr; }
  .gallery-item { aspect-ratio: 4/3; }
  .gallery-item:nth-child(3) { grid-column: auto; aspect-ratio: 4/3; }

  .event-list li {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 1.25rem 0.5rem;
  }
  .event-date { flex-direction: row; align-items: baseline; gap: 0.75rem; }
  .event-name { padding-left: 1rem; font-size: 0.98rem; }

  .about::before { right: -2rem; font-size: 10rem; }
  .events::before { display: none; }

  .banner-strip { font-size: 0.72rem; letter-spacing: 0.1em; }
  .banner-strip strong { display: block; margin: 0 0 0.25rem; }

  /* Sub-page adjustments */
  .subhero { min-height: 45vh; padding: 5.5rem 1rem 3rem; }
  .subhero-title {
    font-size: clamp(1.5rem, 7vw, 2.2rem);
    letter-spacing: 0.1em;
    text-indent: 0.1em;
    line-height: 1.4;
  }
  .subhero-kana { font-size: 0.7rem; letter-spacing: 0.4em; text-indent: 0.4em; }
  .page-body h2 { margin: 2rem 0 1.25rem; padding-left: 1rem; }
  .page-body h2::before { width: 3px; }
  .page-body h2::after { left: 1rem; }
  .page-gallery { grid-template-columns: 1fr; }
  .page-gallery figure { aspect-ratio: 4/3; }
  .event-table td { display: block; padding: 0.5rem 0.75rem; }
  .event-table td.t-date { padding-top: 1.2rem; width: auto; }
  .event-table td.t-name { padding-bottom: 1.2rem; padding-left: 1.75rem; width: auto; }
  .event-table td.t-time { width: auto; }
  .event-table .t-name::before { left: 0.75rem; top: 0.85em; }
  .info-card dl { grid-template-columns: 1fr; gap: 0.2rem; }
  .info-card dt { margin-top: 0.75rem; }
  .info-card dt:first-child { margin-top: 0; }

  /* Other-links wrapping */
  .other-links a {
    flex-wrap: wrap;
    padding: 1rem 1.25rem;
    font-size: 0.95rem;
    letter-spacing: 0.1em;
  }
  .other-links .link-en {
    flex-basis: 100%;
    margin-left: 0;
    margin-top: 0.4rem;
    text-align: left;
  }

  /* Page-nav buttons stack */
  .page-nav { flex-direction: column; align-items: stretch; }
  .page-nav .btn-ghost { justify-content: center; }

  /* Footer */
  .footer-address { font-size: 0.78rem; letter-spacing: 0.08em; }
}

/* Very narrow phones (≤380px) */
@media (max-width: 380px) {
  .brand-en { display: none; }
  .brand-mark { width: 2rem; height: 2rem; }
  .nav-mobile { gap: 0.6rem; padding-top: 4rem; }
  .nav-mobile a { font-size: 1rem; min-width: 9rem; }
  .nav-mobile a::before { font-size: 0.55rem; margin-bottom: 0.15rem; }
  .subhero-title { font-size: clamp(1.3rem, 7vw, 2rem); }
  .banner-strip { font-size: 0.68rem; padding: 0.7rem 0.75rem; }
}

/* Short viewport heights (landscape phones, etc.) */
@media (max-height: 560px) and (max-width: 720px) {
  .nav-mobile {
    justify-content: flex-start;
    padding-top: 4rem;
    gap: 0.5rem;
  }
  .nav-mobile a { padding: 0.25rem 0.75rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .hero-image { animation: none; transform: scale(1); }
  html { scroll-behavior: auto; }
}