/* ============================================================
   Seido Cultural Center — セイドー文化センター国際男子学生会館
   瀬戸内 Setouchi coast palette: sea blue on crisp near-white,
   sand as the warm note, shu-iro hanko seal. Day & night themes:
   follows prefers-color-scheme, overridable via html[data-theme].
   ============================================================ */

:root {
  color-scheme: light;

  /* — Day (Setouchi morning) — */
  --paper: #f4f7f9;
  --paper-deep: #e3eaef;
  --paper-card: #fbfcfd;
  --ink: #20303d;
  --ink-soft: #4e5e6b;
  --ink-faint: #7c8893;
  --hairline: rgba(32, 48, 61, 0.16);
  --hairline-soft: rgba(32, 48, 61, 0.09);
  --blue: #1d6fa8;
  --blue-deep: #144e78;
  --blue-ink: #0e3654;
  --night: #0e1a26;
  --night-soft: #16273a;
  --cream: #ecf2f6;
  --cream-faint: rgba(236, 242, 246, 0.62);
  --shu: #b5402f;
  --gold: #d7bc92;

  --header-glass: rgba(244, 247, 249, 0.88);
  --ghost-stroke: rgba(32, 48, 61, 0.055);
  --halo-a: rgba(29, 111, 168, 0.1);
  --halo-b: rgba(215, 188, 146, 0.12);
  --grain-blend: multiply;
  --grain-opacity: 0.05;
  --icon-sun: block;
  --icon-moon: none;

  --font-display-jp: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --font-display-en: "Marcellus", "Shippori Mincho", serif;
  --font-body: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", sans-serif;

  --w-wide: 1180px;
  --w-text: 760px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* — Night (Setouchi after dark) —
   Applied when the OS prefers dark (and the user hasn't forced
   light), or when the user forces dark via the header toggle. */
@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #0e1a26;
    --paper-deep: #0a141e;
    --paper-card: #16273a;
    --ink: #dce7ef;
    --ink-soft: #a5b7c4;
    --ink-faint: #7e93a5;
    --hairline: rgba(220, 231, 239, 0.18);
    --hairline-soft: rgba(220, 231, 239, 0.1);
    --blue: #6fb3de;
    --blue-deep: #5fa8d8;
    --blue-ink: #82bce2;
    --night: #0b1520;
    --night-soft: #122231;
    --cream: #dce7ef;
    --cream-faint: rgba(220, 231, 239, 0.62);
    --shu: #cd5743;
    --gold: #d9be94;
    --header-glass: rgba(14, 26, 38, 0.85);
    --ghost-stroke: rgba(220, 231, 239, 0.07);
    --halo-a: rgba(95, 168, 216, 0.08);
    --halo-b: rgba(217, 190, 148, 0.06);
    --grain-blend: screen;
    --grain-opacity: 0.035;
    --icon-sun: none;
    --icon-moon: block;
  }
}
html[data-theme="dark"] {
  color-scheme: dark;
  --paper: #0e1a26;
  --paper-deep: #0a141e;
  --paper-card: #16273a;
  --ink: #dce7ef;
  --ink-soft: #a5b7c4;
  --ink-faint: #7e93a5;
  --hairline: rgba(220, 231, 239, 0.18);
  --hairline-soft: rgba(220, 231, 239, 0.1);
  --blue: #6fb3de;
  --blue-deep: #5fa8d8;
  --blue-ink: #82bce2;
  --night: #0b1520;
  --night-soft: #122231;
  --cream: #dce7ef;
  --cream-faint: rgba(220, 231, 239, 0.62);
  --shu: #cd5743;
  --gold: #d9be94;
  --header-glass: rgba(14, 26, 38, 0.85);
  --ghost-stroke: rgba(220, 231, 239, 0.07);
  --halo-a: rgba(95, 168, 216, 0.08);
  --halo-b: rgba(217, 190, 148, 0.06);
  --grain-blend: screen;
  --grain-opacity: 0.035;
  --icon-sun: none;
  --icon-moon: block;
}

/* ---------- Reset-ish ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  -webkit-text-size-adjust: 100%;
}
body {
  background: var(--paper);
  color: var(--ink);
  transition: background-color 0.35s var(--ease-out), color 0.35s var(--ease-out);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: 0.02em;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  position: relative;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
ul, ol { padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
::selection { background: var(--blue); color: var(--paper); }

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Washi grain over everything, very quiet */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 80;
  pointer-events: none;
  opacity: var(--grain-opacity);
  mix-blend-mode: var(--grain-blend);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Language switching ---------- */
html[data-lang="ja"] .en { display: none !important; }
html[data-lang="en"] .ja { display: none !important; }

/* ---------- Shared layout ---------- */
.wrap {
  width: min(var(--w-wide), 100% - 48px);
  margin-inline: auto;
}
.section { padding: 116px 0; position: relative; }
.section--tight { padding: 84px 0; }

/* Section heading: index no. + JP mincho + EN caps */
.sec-head { margin-bottom: 56px; }
.sec-head .no {
  font-family: var(--font-display-en);
  font-size: 13px;
  letter-spacing: 0.34em;
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.sec-head .no::after {
  content: "";
  height: 1px;
  width: 56px;
  background: var(--blue);
  opacity: 0.55;
}
.sec-head h2 {
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: clamp(30px, 4.2vw, 44px);
  line-height: 1.35;
  letter-spacing: 0.06em;
}
html[data-lang="en"] .sec-head h2 { font-family: var(--font-display-en); font-weight: 400; letter-spacing: 0.03em; }
.sec-head .sub {
  margin-top: 10px;
  font-family: var(--font-display-en);
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.lede {
  max-width: var(--w-text);
  color: var(--ink-soft);
  font-size: 16.5px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 15px 30px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.14em;
  border-radius: 2px;
  text-decoration: none;
  transition: background-color 0.3s var(--ease-out), color 0.3s var(--ease-out),
              border-color 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}
.btn .arr { transition: transform 0.3s var(--ease-out); font-family: var(--font-display-en); }
.btn:hover .arr { transform: translateX(5px); }
.btn--primary { background: var(--blue-deep); color: var(--paper-card); }
.btn--primary:hover { background: var(--blue-ink); }
.btn--ghost { border: 1px solid var(--hairline); color: var(--ink); }
.btn--ghost:hover { border-color: var(--ink); }
.btn--light { background: var(--cream); color: var(--night); }
.btn--light:hover { background: #fff; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 60;
  transition: background-color 0.35s, box-shadow 0.35s, backdrop-filter 0.35s;
}
.site-header.is-scrolled {
  background: var(--header-glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--hairline-soft);
}
.header-bar {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 16px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 13px;
  text-decoration: none;
  margin-right: auto;
}
.brand img {
  width: 44px; height: 44px;
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--hairline-soft);
}
.brand .t1 {
  display: block;
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: 16.5px;
  letter-spacing: 0.08em;
  line-height: 1.3;
}
html[data-lang="en"] .brand .t1 { font-family: var(--font-display-en); font-weight: 400; }
.brand .t2 {
  display: block;
  font-family: var(--font-display-en);
  font-size: 9.5px;
  letter-spacing: 0.3em;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a {
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--ink-soft);
  position: relative;
  padding: 6px 0;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s var(--ease-out);
}
.main-nav a:hover { color: var(--ink); }
.main-nav a:hover::after { transform: scaleX(1); transform-origin: left; }

.lang-toggle {
  display: flex;
  flex: none;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  overflow: hidden;
}
.lang-toggle button {
  padding: 7px 13px;
  white-space: nowrap;
  font-family: var(--font-display-en);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
  transition: background-color 0.25s, color 0.25s;
}
.lang-toggle button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}
/* day / night toggle */
.theme-toggle {
  flex: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  display: grid;
  place-items: center;
  color: var(--ink-soft);
  transition: border-color 0.25s, color 0.25s;
}
.theme-toggle:hover { border-color: var(--ink); color: var(--ink); }
.theme-toggle svg { width: 16px; height: 16px; }
.theme-toggle .i-sun { display: var(--icon-sun); }
.theme-toggle .i-moon { display: var(--icon-moon); }

.header-cta { white-space: nowrap; padding: 11px 20px; font-size: 13px; }

/* Mobile nav */
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 7px;
  width: 44px; height: 44px;
  padding: 10px;
}
.nav-burger span {
  display: block;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.35s var(--ease-out), opacity 0.25s;
}
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(4.25px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { transform: translateY(-4.25px) rotate(-45deg); }

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 55;
  background: var(--paper);
  display: none;
  flex-direction: column;
  justify-content: center;
  padding: 96px 36px 48px;
}
.mobile-nav.is-open { display: flex; }
.mobile-nav a {
  font-family: var(--font-display-jp);
  font-size: 27px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-decoration: none;
  padding: 14px 0;
  border-bottom: 1px solid var(--hairline-soft);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
html[data-lang="en"] .mobile-nav a { font-family: var(--font-display-en); font-weight: 400; }
.mobile-nav a .en-hint {
  font-family: var(--font-display-en);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.mobile-nav .btn { margin-top: 34px; justify-content: center; }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  padding: 178px 0 96px;
  overflow: hidden;
}
.hero::before {
  /* soft morning wash */
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(46% 38% at 86% 6%, var(--halo-a), transparent 70%),
    radial-gradient(34% 30% at 4% 88%, var(--halo-b), transparent 70%);
  pointer-events: none;
}
.hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 6.4fr) minmax(0, 5.6fr) auto;
  gap: clamp(32px, 4.5vw, 64px);
  align-items: center;
  position: relative;
}

.hero-copy { position: relative; z-index: 2; }
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 30px;
}
.hero-eyebrow .line { width: 52px; height: 1px; background: var(--ink); opacity: 0.4; }
.hero-eyebrow .txt {
  font-family: var(--font-display-en);
  font-size: 12.5px;
  letter-spacing: 0.34em;
  color: var(--ink-soft);
}
/* hanko seal: 芦屋 */
.seal {
  margin-left: auto;
  width: 46px; height: 46px;
  background: var(--shu);
  color: #f8f1e4;
  border-radius: 4px;
  display: grid;
  place-items: center;
  font-family: var(--font-display-jp);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.05;
  letter-spacing: 0;
  writing-mode: vertical-rl;
  transform: rotate(-3deg);
  box-shadow: 0 2px 10px rgba(181, 64, 47, 0.3);
}
.hero h1 {
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: clamp(38px, 5.6vw, 62px);
  line-height: 1.28;
  letter-spacing: 0.05em;
}
html[data-lang="en"] .hero h1 {
  font-family: var(--font-display-en);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1.18;
}
.hero .h1-sub {
  margin-top: 16px;
  font-family: var(--font-display-jp);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--ink-soft);
}
html[data-lang="en"] .hero .h1-sub { font-family: var(--font-display-en); letter-spacing: 0.1em; }
.hero .latin {
  margin-top: 12px;
  font-family: var(--font-display-en);
  font-size: 11.5px;
  letter-spacing: 0.42em;
  color: var(--blue-deep);
  text-transform: uppercase;
}
.hero .lede {
  margin-top: 30px;
  font-size: 16px;
  max-width: 33em;
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 40px;
}

/* photo with offset frames */
.hero-figure { position: relative; z-index: 1; }
.hero-figure .ph {
  position: relative;
  box-shadow: 28px 28px 0 -1px var(--paper-deep), 0 24px 60px rgba(13, 26, 36, 0.16);
}
.hero-figure .ph::before {
  content: "";
  position: absolute;
  inset: 0;
  transform: translate(-14px, -14px);
  border: 1px solid var(--blue);
  opacity: 0.5;
  pointer-events: none;
}
.hero-figure img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.hero-figure figcaption {
  margin-top: 44px; /* clear the 28px offset frame so the caption isn't covered */
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
}
.hero-figure figcaption::before {
  content: "";
  width: 26px; height: 1px;
  background: var(--ink-faint);
  align-self: center;
}

/* vertical objectives rail */
.hero-rail {
  display: flex;
  gap: 22px;
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: 15.5px;
  letter-spacing: 0.42em;
  color: var(--ink-soft);
  height: 380px;
  align-self: start;
  margin-top: 8px;
}
.hero-rail span {
  border-right: 1px solid var(--hairline);
  padding-right: 18px;
  display: inline-block;
}
.hero-rail span:first-child { color: var(--blue-deep); }

/* giant ghost character */
.hero-ghost {
  position: absolute;
  right: -1.5vw;
  bottom: -10vw;
  font-family: var(--font-display-jp);
  font-weight: 700;
  font-size: 34vw;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--ghost-stroke);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

/* stats band */
.stats {
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}
.stats .wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat {
  padding: 30px 26px;
  border-left: 1px solid var(--hairline-soft);
}
.stat:first-child { border-left: 0; padding-left: 0; }
.stat .num {
  font-family: var(--font-display-en);
  font-size: clamp(26px, 3vw, 36px);
  color: var(--blue-deep);
  line-height: 1.2;
}
.stat .num small { font-size: 0.5em; letter-spacing: 0.1em; }
.stat .lbl {
  margin-top: 4px;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}

/* ============================================================
   About
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 6.5fr) minmax(0, 5.5fr);
  gap: clamp(40px, 5vw, 76px);
  align-items: start;
}
.about-block + .about-block { margin-top: 40px; }
.about-block h3 {
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}
html[data-lang="en"] .about-block h3 { font-family: var(--font-display-en); font-weight: 400; letter-spacing: 0.05em; }
.about-block h3::before {
  content: "";
  width: 9px; height: 9px;
  background: var(--blue);
  transform: rotate(45deg);
  flex: none;
}
.about-block p { color: var(--ink-soft); }
.about-block a { color: var(--blue-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.about-block a:hover { color: var(--blue); }

.lang-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.lang-chips li {
  font-size: 12.5px;
  letter-spacing: 0.1em;
  padding: 7px 16px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  color: var(--ink-soft);
  background: var(--paper-card);
}

.about-figure { position: sticky; top: 110px; }
.about-figure .ph {
  box-shadow: -24px 24px 0 -1px var(--paper-deep), 0 20px 50px rgba(13, 26, 36, 0.14);
}
.about-figure img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.about-figure figcaption {
  margin-top: 16px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
  display: flex;
  gap: 12px;
  align-items: center;
}
.about-figure figcaption::before {
  content: "";
  width: 26px; height: 1px;
  background: var(--ink-faint);
}

/* pillars */
.pillars {
  background: var(--paper-deep);
  border-top: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
}
.pillars .wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(28px, 4vw, 64px);
}
.pillar { text-align: center; padding: 8px 0; }
.pillar .ring {
  width: 132px; height: 132px;
  margin: 0 auto 22px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  display: grid;
  place-items: center;
  position: relative;
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: 40px;
  letter-spacing: 0.08em;
  background: var(--paper);
  transition: transform 0.45s var(--ease-out), box-shadow 0.45s var(--ease-out);
}
.pillar .ring::after {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid var(--hairline);
  border-radius: 50%;
}
.pillar:hover .ring {
  transform: translateY(-6px);
  box-shadow: 0 18px 36px rgba(13, 26, 36, 0.14);
}
.pillar .p-jp {
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.14em;
}
.pillar .p-en {
  margin-top: 6px;
  font-family: var(--font-display-en);
  font-size: 11px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.pillar .p-txt {
  margin-top: 14px;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.95;
}

/* ============================================================
   Activities
   ============================================================ */
.act-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.act-card {
  background: var(--paper-card);
  border: 1px solid var(--hairline-soft);
  padding: 38px 34px 34px;
  position: relative;
  transition: transform 0.45s var(--ease-out), box-shadow 0.45s var(--ease-out);
}
.act-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--blue) 0%, var(--blue) 38%, transparent 38%);
}
.act-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 26px 50px rgba(13, 26, 36, 0.12);
}
.act-card .icon {
  width: 54px; height: 54px;
  color: var(--blue-deep);
  margin-bottom: 26px;
}
.act-card .icon svg { width: 100%; height: 100%; }
.act-card .a-en {
  font-family: var(--font-display-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--blue-deep);
  margin-bottom: 8px;
}
.act-card h3 {
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
html[data-lang="en"] .act-card h3 { font-family: var(--font-display-en); font-weight: 400; }
.act-card .a-desc { font-size: 14.5px; color: var(--ink-soft); margin-bottom: 22px; min-height: 3.8em; }
.act-card ul { border-top: 1px solid var(--hairline-soft); }
.act-card li {
  padding: 11px 2px;
  border-bottom: 1px solid var(--hairline-soft);
  font-size: 14px;
  display: flex;
  gap: 12px;
  align-items: baseline;
}
.act-card li::before {
  content: "・";
  color: var(--blue);
  font-weight: 700;
  flex: none;
}

/* ============================================================
   Facilities
   ============================================================ */
.fac-gallery {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 26px;
}
.fac-item { position: relative; overflow: hidden; }
.fac-item:nth-child(1) { grid-column: span 7; }
.fac-item:nth-child(2) { grid-column: span 5; }
.fac-item:nth-child(3) { grid-column: span 5; }
.fac-item:nth-child(4) { grid-column: span 7; }
.fac-item .ph { overflow: hidden; position: relative; }
.fac-item img {
  width: 100%;
  aspect-ratio: 16 / 10.5;
  object-fit: cover;
  transition: transform 1.1s var(--ease-out);
}
.fac-item:hover img { transform: scale(1.045); }
.fac-item .ph::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(244, 247, 249, 0.35);
  pointer-events: none;
  mix-blend-mode: screen;
}
.fac-cap {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-top: 14px;
}
.fac-cap .jp {
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.12em;
}
.fac-cap .lat {
  font-family: var(--font-display-en);
  font-size: 11px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.fac-more { margin-top: 46px; }
.fac-more .t {
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
  margin-bottom: 16px;
}
.fac-chips { display: flex; flex-wrap: wrap; gap: 12px; }
.fac-chips li {
  padding: 10px 22px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  font-size: 13.5px;
  letter-spacing: 0.1em;
  background: var(--paper-card);
  color: var(--ink-soft);
}

/* ============================================================
   Residence (dark movement)
   ============================================================ */
.residence {
  background:
    radial-gradient(56% 60% at 88% 0%, rgba(95, 168, 216, 0.2), transparent 64%),
    radial-gradient(40% 44% at 0% 100%, rgba(217, 190, 148, 0.1), transparent 60%),
    var(--night);
  color: var(--cream);
  padding: 124px 0;
}
.residence .sec-head .no { color: #7fb8e0; }
.residence .sec-head .no::after { background: #7fb8e0; }
.residence .sec-head .sub { color: var(--cream-faint); }
.residence .lede { color: var(--cream-faint); }

.res-grid {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  gap: clamp(40px, 5vw, 80px);
  align-items: start;
}
.res-list h3 {
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.12em;
  margin: 36px 0 8px;
  color: #fff;
}
html[data-lang="en"] .res-list h3 { font-family: var(--font-display-en); font-weight: 400; }
.res-list h3:first-child { margin-top: 0; }
.res-list ul { border-top: 1px solid rgba(236, 242, 246, 0.18); }
.res-list li {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 13px 2px;
  border-bottom: 1px solid rgba(236, 242, 246, 0.12);
  font-size: 14.5px;
  color: var(--cream-faint);
}
.res-list li .k { color: var(--cream); }
.res-note {
  margin-top: 30px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  font-size: 14px;
  color: var(--cream-faint);
}
.res-note::before {
  content: "";
  flex: none;
  width: 9px; height: 9px;
  margin-top: 9px;
  background: var(--gold);
  transform: rotate(45deg);
}

.price-cards { display: grid; gap: 22px; }
.price-card {
  border: 1px solid rgba(236, 242, 246, 0.22);
  background: rgba(236, 242, 246, 0.04);
  padding: 30px 34px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  transition: background-color 0.35s, border-color 0.35s;
}
.price-card:hover { background: rgba(236, 242, 246, 0.08); border-color: rgba(236, 242, 246, 0.4); }
.price-card .who {
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: 0.12em;
  color: #fff;
}
html[data-lang="en"] .price-card .who { font-family: var(--font-display-en); font-weight: 400; }
.price-card .who small {
  display: block;
  font-family: var(--font-display-en);
  font-size: 10.5px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--cream-faint);
  margin-top: 5px;
}
.price-card .amt {
  font-family: var(--font-display-en);
  font-size: clamp(30px, 3.2vw, 40px);
  color: #fff;
  white-space: nowrap;
}
.price-card .amt .unit {
  font-size: 0.38em;
  letter-spacing: 0.14em;
  color: var(--cream-faint);
  margin-left: 6px;
}
.price-foot {
  margin-top: 22px;
  font-size: 13px;
  color: var(--cream-faint);
  letter-spacing: 0.06em;
}
.res-cta { margin-top: 38px; display: flex; flex-wrap: wrap; gap: 16px; }

/* ============================================================
   Access / Contact
   ============================================================ */
.access-grid {
  display: grid;
  grid-template-columns: minmax(0, 5.4fr) minmax(0, 6.6fr);
  gap: clamp(40px, 5vw, 76px);
  align-items: start;
}
.addr-rows { border-top: 1px solid var(--hairline); }
.addr-row {
  display: grid;
  grid-template-columns: 118px 1fr;
  gap: 20px;
  padding: 19px 2px;
  border-bottom: 1px solid var(--hairline-soft);
  font-size: 15px;
}
.addr-row .k {
  font-family: var(--font-display-en);
  font-size: 11px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-top: 5px;
}
.addr-row .v { color: var(--ink-soft); }
.addr-row .v a { color: var(--blue-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.addr-row .v a:hover { color: var(--blue); }
.addr-row .v .big {
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: 17px;
  color: var(--ink);
  letter-spacing: 0.06em;
}
.socials { display: flex; gap: 14px; margin-top: 30px; }
.socials a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-decoration: none;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  padding: 10px 20px;
  color: var(--ink-soft);
  transition: border-color 0.3s, color 0.3s, background-color 0.3s;
}
.socials a:hover { border-color: var(--blue-deep); color: var(--blue-deep); background: var(--paper-card); }
.socials svg { width: 15px; height: 15px; }

.map-figure .ph {
  position: relative;
  box-shadow: 22px 22px 0 -1px var(--paper-deep), 0 18px 44px rgba(13, 26, 36, 0.12);
}
.map-figure img { width: 100%; object-fit: cover; aspect-ratio: 1.05 / 1; }
.map-figure .map-link {
  position: absolute;
  left: 18px; bottom: 18px;
  background: var(--ink);
  color: var(--paper);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  text-decoration: none;
  padding: 11px 20px;
  border-radius: 2px;
  display: inline-flex;
  gap: 10px;
  align-items: center;
  transition: background-color 0.3s;
}
.map-figure .map-link:hover { background: var(--blue-deep); }

/* contact form */
.contact-form-wrap {
  margin-top: 84px;
  border-top: 1px solid var(--hairline);
  padding-top: 64px;
}
.cf-head {
  display: flex;
  align-items: baseline;
  gap: 22px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.cf-head h3 {
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: 26px;
  letter-spacing: 0.1em;
}
html[data-lang="en"] .cf-head h3 { font-family: var(--font-display-en); font-weight: 400; }
.cf-head .lat {
  font-family: var(--font-display-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 22px 54px;
}
.form-grid .col { display: grid; gap: 22px; align-content: start; }
.field { display: grid; gap: 8px; }
.field label {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ink-soft);
  display: flex;
  gap: 8px;
  align-items: baseline;
}
.field label .req {
  color: var(--shu);
  font-size: 10px;
  letter-spacing: 0.1em;
}
.field input,
.field textarea {
  font: inherit;
  font-size: 15px;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--hairline);
  padding: 9px 2px 11px;
  border-radius: 0;
  transition: border-color 0.3s;
}
.field textarea {
  border: 1px solid var(--hairline);
  padding: 14px 16px;
  min-height: 178px;
  resize: vertical;
  background: var(--paper-card);
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--blue-deep);
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-faint); opacity: 0.7; }
.form-foot {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.form-note { font-size: 12.5px; color: var(--ink-faint); max-width: 46em; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: #14222e;
  color: rgba(236, 242, 246, 0.78);
  padding: 72px 0 36px;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 3.5fr) minmax(0, 3.5fr);
  gap: 44px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(236, 242, 246, 0.14);
}
.f-brand { display: flex; gap: 16px; align-items: flex-start; }
.f-brand img { width: 46px; height: 46px; border-radius: 50%; }
.f-brand .t1 {
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.08em;
  color: #fff;
}
html[data-lang="en"] .f-brand .t1 { font-family: var(--font-display-en); font-weight: 400; }
.f-brand .t2 {
  font-family: var(--font-display-en);
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-top: 4px;
  color: rgba(236, 242, 246, 0.5);
}
.f-brand p { font-size: 13px; margin-top: 14px; line-height: 1.9; }
.f-brand a { color: #8fc1e4; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.f-col .h {
  font-family: var(--font-display-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(236, 242, 246, 0.5);
  margin-bottom: 18px;
}
.f-col ul { display: grid; gap: 11px; }
.f-col a {
  font-size: 14px;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: rgba(236, 242, 246, 0.78);
  transition: color 0.25s;
}
.f-col a:hover { color: #fff; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  padding-top: 28px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(236, 242, 246, 0.45);
}
.footer-bottom .seal { width: 34px; height: 34px; font-size: 12.5px; box-shadow: none; }

/* ============================================================
   Application page
   ============================================================ */
.page-hero {
  padding: 188px 0 72px;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(42% 50% at 92% 0%, var(--halo-a), transparent 70%);
  pointer-events: none;
}
.page-hero .no {
  font-family: var(--font-display-en);
  font-size: 12.5px;
  letter-spacing: 0.34em;
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.page-hero .no::after { content: ""; width: 56px; height: 1px; background: var(--blue); opacity: 0.55; }
.page-hero h1 {
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: clamp(34px, 4.6vw, 52px);
  letter-spacing: 0.08em;
}
html[data-lang="en"] .page-hero h1 { font-family: var(--font-display-en); font-weight: 400; }
.page-hero .sub {
  margin-top: 12px;
  font-family: var(--font-display-en);
  font-size: 12px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.app-layout {
  display: grid;
  grid-template-columns: minmax(0, 7.2fr) minmax(0, 4.8fr);
  gap: clamp(40px, 5vw, 80px);
  align-items: start;
  padding-bottom: 116px;
}
.disclaimer {
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--shu);
  background: var(--paper-card);
  padding: 24px 28px;
  font-size: 14px;
  color: var(--ink-soft);
  margin-bottom: 48px;
}
.disclaimer .t {
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.1em;
  margin-bottom: 6px;
  font-size: 13px;
}
.app-form { display: grid; gap: 26px; }
.app-form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.app-side { position: sticky; top: 110px; display: grid; gap: 26px; }
.side-card {
  border: 1px solid var(--hairline-soft);
  background: var(--paper-card);
  padding: 30px 32px;
}
.side-card .h {
  font-family: var(--font-display-jp);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
html[data-lang="en"] .side-card .h { font-family: var(--font-display-en); font-weight: 400; }
.side-card .h::before {
  content: "";
  width: 8px; height: 8px;
  background: var(--blue);
  transform: rotate(45deg);
}
.side-card p, .side-card li { font-size: 13.5px; color: var(--ink-soft); }
.side-card ul { display: grid; gap: 10px; }
.side-card li { display: flex; gap: 10px; }
.side-card li::before { content: "・"; color: var(--blue); font-weight: 700; }
.side-card a { color: var(--blue-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.side-card .photo { margin: -30px -32px 22px; }
.side-card .photo img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }

/* ============================================================
   Reveal animations
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  transition-delay: var(--d, 0s);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }

/* hero entrance */
@keyframes riseIn {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: none; }
}
@keyframes railIn {
  from { opacity: 0; transform: translateX(18px); }
  to { opacity: 1; transform: none; }
}
.hero-copy > * { animation: riseIn 1s var(--ease-out) both; }
.hero-copy > *:nth-child(1) { animation-delay: 0.05s; }
.hero-copy > *:nth-child(2) { animation-delay: 0.16s; }
.hero-copy > *:nth-child(3) { animation-delay: 0.24s; }
.hero-copy > *:nth-child(4) { animation-delay: 0.3s; }
.hero-copy > *:nth-child(5) { animation-delay: 0.38s; }
.hero-copy > *:nth-child(6) { animation-delay: 0.46s; }
.hero-figure { animation: riseIn 1.15s var(--ease-out) 0.3s both; }
.hero-rail { animation: railIn 1.1s var(--ease-out) 0.62s both; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-delay: 0s !important;
    transition-duration: 0.001s !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1080px) {
  .hero .wrap { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .hero-rail { display: none; }
  .main-nav { display: none; }
  .header-cta { display: none; }
  .nav-burger { display: flex; }
}

@media (max-width: 860px) {
  .section { padding: 84px 0; }
  .hero { padding: 148px 0 72px; }
  .hero .wrap { grid-template-columns: 1fr; gap: 56px; }
  .hero-figure { max-width: 560px; }
  .hero-ghost { font-size: 64vw; bottom: -24vw; }
  .stats .wrap { grid-template-columns: 1fr 1fr; }
  .stat { padding: 22px 18px; }
  .stat:nth-child(odd) { border-left: 0; padding-left: 0; }
  .stats .wrap { border-top: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--hairline-soft); }
  .about-grid { grid-template-columns: 1fr; }
  .about-figure { position: static; max-width: 560px; }
  .pillars .wrap { grid-template-columns: 1fr; gap: 44px; }
  .act-grid { grid-template-columns: 1fr; }
  .act-card .a-desc { min-height: 0; }
  .fac-gallery { grid-template-columns: 1fr; gap: 38px; }
  .fac-item { grid-column: span 1 !important; }
  .res-grid { grid-template-columns: 1fr; }
  .access-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .app-layout { grid-template-columns: 1fr; padding-bottom: 84px; }
  .app-side { position: static; }
  .app-form .row2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .price-card { flex-direction: column; align-items: flex-start; gap: 6px; }
}

@media (max-width: 520px) {
  .wrap { width: calc(100% - 40px); }
  .header-bar { gap: 12px; }
  .brand { gap: 10px; }
  .brand img { width: 38px; height: 38px; }
  .brand .t1 { font-size: 13px; }
  .brand .t2 { display: none; }
  .lang-toggle button { padding: 6px 10px; font-size: 10.5px; }
  .theme-toggle { width: 32px; height: 32px; }
  .hero-eyebrow .txt { font-size: 10.5px; letter-spacing: 0.22em; }
  .seal { width: 40px; height: 40px; font-size: 14.5px; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
  .res-cta .btn { width: 100%; justify-content: center; }
  .addr-row { grid-template-columns: 1fr; gap: 4px; padding: 15px 2px; }
}