/* ============================================================
   Return Field — prototype styles
   Palette: deep earth / muted green / muted blue + soft gold,
   a whisper of muted purple. NO rainbow, NO neon.
   ============================================================ */

:root {
  --bg:        #16120f;   /* warm charcoal (lifted from near-black) */
  --bg-2:      #1f1916;
  --earth:     #211a15;
  --green:     #16221c;   /* deep muted green */
  --blue:      #18242c;   /* muted blue */
  --gold:      #c9a96a;
  --gold-soft: #e6d5ab;
  --purple:    #6f5f8c;   /* muted, used sparingly */
  --text:      #efe7da;   /* warm off-white */
  --dim:       #bcb1a0;
  --line:      rgba(201,169,106,.18);

  --serif: "Fraunces", "Shippori Mincho", Georgia, serif;
  --sans:  "Inter", "Shippori Mincho", system-ui, sans-serif;
  --jp:    "Shippori Mincho", "Noto Serif JP", serif;

  --maxw: 1360px;
  --gut: clamp(20px, 5vw, 64px);
  --ease: cubic-bezier(.4,.01,.16,1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  font-size: 112.5%;          /* 1rem = 18px → body copy ≈ 18pt相当 */
  font-optical-sizing: auto;  /* Fraunces opsz */ }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.8;
  overflow-x: hidden;
}

/* ---- Japanese typography: 役物半角 (palt) + カーニング + 行頭行末 ---- */
body[data-lang="jp"] {
  font-family: var(--jp);
  /* palt = proportional metrics → 役物（、。「」（）・：）を半角的に詰める＋カーニング */
  font-feature-settings: "palt" 1, "pkna" 1, "kern" 1, "halt" 1;
  font-kerning: normal;
  text-spacing-trim: trim-start;      /* 行頭役物の余白を詰める（対応ブラウザ） */
  letter-spacing: -.02em;             /* palt非対応フォントでも詰まって見えるよう負トラッキング */
  line-height: 1.9;                   /* JP本文はゆったり目に */
  line-break: strict;                 /* 行頭・行末禁則を厳格に */
  word-break: auto-phrase;            /* 文節単位で改行（単語内改行を防ぐ・対応ブラウザ） */
  overflow-wrap: normal;             /* 単語内で強制改行しない */
  text-align: left;
}
/* auto-phrase 非対応ブラウザ用フォールバック: 不自然な途中改行よりは許容 */
@supports not (word-break: auto-phrase) { body[data-lang="jp"] { word-break: normal; } }
/* All JP headings: force mincho (fixes gothic fallback) + tight kerning */
body[data-lang="jp"] .hero__title,
body[data-lang="jp"] .section__title,
body[data-lang="jp"] .band__line,
body[data-lang="jp"] .story__text h3,
body[data-lang="jp"] .pillar h3,
body[data-lang="jp"] .steps h4,
body[data-lang="jp"] .card h3,
body[data-lang="jp"] .price__head h3,
body[data-lang="jp"] .faq__item h3,
body[data-lang="jp"] .audience__list li,
body[data-lang="jp"] .footer__tag {
  font-family: var(--jp); font-weight: 600; font-style: normal;  /* match Fraunces' visual weight */
  font-feature-settings: "palt" 1, "halt" 1, "kern" 1;
  letter-spacing: -.04em;
  line-height: 1.42;
}
/* JP glyphs read larger/denser than Latin → scale headings down vs EN */
body[data-lang="jp"] .hero__title { font-size: clamp(2.8rem, 6.2vw, 5.2rem); line-height: 1.18; }
body[data-lang="jp"] .section__title { font-size: clamp(1.95rem, 4.2vw, 3.4rem); }
body[data-lang="jp"] .story__text .section__title { font-size: clamp(1.7rem, 2.6vw, 2.4rem); }
body[data-lang="jp"] .story__text h3 { font-size: clamp(1.35rem, 2.1vw, 1.7rem); }
body[data-lang="jp"] .band__line { font-size: clamp(1.4rem, 2.8vw, 2.2rem); font-style: normal; }
/* JP数字・英字混在を等幅にせず自然に */
body[data-lang="jp"] .price__now { letter-spacing: 0; font-feature-settings: normal; }

img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ---- Reveal initial states (avoid FOUC; cleared by JS) ---- */
.no-js [data-reveal], .no-js [data-split] { opacity: 1 !important; }
body:not(.no-js) [data-reveal] { opacity: 0; }

/* ============================ Loader ============================ */
.loader {
  position: fixed; inset: 0; z-index: 200;
  display: grid; place-items: center;
  background: var(--bg);
  transition: opacity 1s var(--ease), visibility 1s;
}
.loader.is-done { opacity: 0; visibility: hidden; }
.loader__mark {
  font-family: var(--serif); font-size: 2rem; color: var(--gold);
  opacity: .7; animation: breathe 3.4s ease-in-out infinite;
}
@keyframes breathe { 0%,100%{opacity:.25; transform:scale(.96)} 50%{opacity:.8; transform:scale(1.04)} }

/* ============================ Nav ============================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px var(--gut);
  mix-blend-mode: difference;            /* stays legible over light/dark */
}
.nav__brand { font-family: var(--serif); letter-spacing: .26em; font-size: .92rem; }
.nav__links { display: flex; gap: clamp(16px, 2.4vw, 38px); align-items: center; }
.nav__links a { font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: var(--text); opacity: .85; }
.nav__links a:hover { opacity: 1; }
.nav__cta { border: 1px solid currentColor; padding: 9px 20px; border-radius: 0; letter-spacing: .2em; opacity: 1 !important; }
.lang-toggle { background: none; border: none; color: var(--text); cursor: pointer;
  font-family: var(--sans); font-size: .72rem; letter-spacing: .12em; opacity: .8; }
.lang-toggle:hover { opacity: 1; }
.lang-toggle__sep { margin: 0 5px; opacity: .4; }
.lang-toggle [data-lang-label] { opacity: .45; }
body[data-lang="en"] .lang-toggle [data-lang-label="en"],
body[data-lang="jp"] .lang-toggle [data-lang-label="jp"] { opacity: 1; }
@media (max-width: 760px) {
  .nav__links a:not(.nav__cta) { display: none; }
}

/* ============================ Hero ============================ */
.hero {
  position: relative; min-height: 100svh;
  display: grid; align-items: center;
  padding: 0 var(--gut);
  overflow: hidden;
}
.hero__field { position: absolute; inset: -8% -8% -8% -8%; z-index: 0;
  background: url("../media/hero.jpg") center 42% / cover no-repeat; }
/* scrim so the centred headline stays legible over the bright beam */
.hero::after { content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(120% 70% at 50% 30%, rgba(8,7,6,.40), transparent 62%),
    linear-gradient(180deg, rgba(8,7,6,.38) 0%, rgba(8,7,6,.06) 34%, rgba(8,7,6,.22) 100%); }
/* image supplies the glow + beam; keep CSS versions off to avoid doubling */
.hero__glow, .hero__beam { display: none; }
.hero__glow--unused {
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 50% at 30% 30%, rgba(111,95,140,.30), transparent 60%),
    radial-gradient(55% 45% at 72% 38%, rgba(201,169,106,.26), transparent 62%),
    radial-gradient(80% 70% at 50% 88%, rgba(22,34,28,.9), transparent 70%),
    linear-gradient(160deg, var(--blue) 0%, var(--bg) 46%, var(--earth) 100%);
  filter: saturate(1.02);
  animation: drift 26s ease-in-out infinite alternate;
}
@keyframes drift {
  0%   { transform: scale(1.05) translate3d(-1.5%, -1%, 0); }
  100% { transform: scale(1.14) translate3d(2%, 1.5%, 0); }
}
/* single vertical light beam — Halo idea, single soft-gold tone (no rainbow) */
.hero__beam {
  position: absolute; top: -10%; bottom: -10%; left: 50%; width: 14vw; min-width: 120px;
  transform: translateX(-50%);
  background: linear-gradient(to bottom,
     transparent, rgba(230,213,171,.10) 30%, rgba(201,169,106,.22) 50%, rgba(230,213,171,.10) 70%, transparent);
  filter: blur(22px); mix-blend-mode: screen; opacity: .8;
  animation: sway 14s ease-in-out infinite alternate;
}
@keyframes sway { 0%{transform:translateX(-58%) rotate(-2deg)} 100%{transform:translateX(-42%) rotate(2deg)} }
.hero__grain {
  position: absolute; inset: 0; opacity: .05; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.hero__inner { position: relative; z-index: 2; max-width: 1000px; margin: 0 auto; text-align: center;
  text-shadow: 0 2px 40px rgba(8,7,6,.7), 0 1px 6px rgba(8,7,6,.6); }
.hero__inner::after { content: ""; position: absolute; z-index: -1; inset: -60px -90px;
  background: radial-gradient(ellipse 68% 78% at 50% 50%, rgba(6,5,4,.72), rgba(6,5,4,0) 72%); }
.eyebrow {
  font-family: var(--sans); font-size: .72rem; letter-spacing: .32em; text-transform: uppercase;
  color: var(--gold-soft); margin-bottom: 28px;
}
.hero__title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(3.4rem, 8.6vw, 7.6rem); line-height: 1.0; letter-spacing: -.025em;
  white-space: pre-line;
}
.hero__sub {
  max-width: 600px; margin: 32px auto 0; color: var(--text);
  font-size: clamp(1.05rem, 1.35vw, 1.2rem); line-height: 1.75;
}
.hero__scroll { position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%); z-index: 2; }
.hero__scroll span {
  display: block; width: 1px; height: 54px;
  background: linear-gradient(var(--gold), transparent);
  animation: pulse 2.6s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:.2; transform:scaleY(.7)} 50%{opacity:.9; transform:scaleY(1)} }

/* ============================ Buttons ============================ */
.btn {
  display: inline-block; margin-top: 44px;
  font-family: var(--sans); font-size: .7rem; font-weight: 400;
  letter-spacing: .32em; text-transform: uppercase;
  color: var(--gold-soft); background: transparent;
  padding: 18px 40px; border: 1px solid rgba(201,169,106,.45); border-radius: 0; cursor: pointer;
  transition: background .55s var(--ease), color .55s var(--ease), border-color .55s var(--ease);
}
.btn:hover { background: var(--gold-soft); color: #0c0a09; border-color: var(--gold-soft); }
.btn--full { width: 100%; margin-top: 18px; }

/* ============================ Sections ============================ */
.section { max-width: var(--maxw); margin: 0 auto; padding: clamp(90px, 14vh, 180px) var(--gut); }
.section__title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(2.4rem, 5.4vw, 4.6rem); line-height: 1.06; letter-spacing: -.02em;
  white-space: pre-line;
}
.section__title--center { text-align: center; margin: 0 auto clamp(40px, 6vh, 80px); }

/* About */
.about { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.about__body p { color: var(--dim); font-size: 1.08rem; }
@media (max-width: 820px){ .about { grid-template-columns: 1fr; } }

/* Pillars */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 4vw, 60px);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.pillar__num { font-family: var(--serif); color: var(--gold); font-size: 1.1rem; letter-spacing: .1em; }
.pillar h3 { font-family: var(--serif); font-weight: 400; font-size: 1.7rem; margin: 14px 0 12px; }
.pillar p { color: var(--dim); font-size: .98rem; }
@media (max-width: 760px){ .pillars { grid-template-columns: 1fr; } }

/* Steps */
.steps { list-style: none; max-width: 760px; margin: 0 auto; display: grid; gap: 8px; }
.steps li { display: grid; grid-template-columns: 64px 1fr; gap: 20px; align-items: start;
  padding: 30px 0; border-top: 1px solid var(--line); }
.steps__k { font-family: var(--serif); color: var(--gold); font-size: 1.2rem; }
.steps h4 { font-family: var(--serif); font-weight: 400; font-size: 1.35rem; margin-bottom: 6px; }
.steps p { color: var(--dim); font-size: .98rem; }

/* Offerings / cards */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(20px, 3vw, 36px); }
.card { border: 1px solid var(--line); border-radius: 14px; padding: clamp(26px, 3vw, 42px);
  background: linear-gradient(160deg, rgba(111,95,140,.06), rgba(22,34,28,.10)); }
.card__media { height: 150px; border-radius: 10px; display: grid; place-items: center; margin-bottom: 26px;
  background: radial-gradient(60% 80% at 50% 40%, rgba(201,169,106,.18), transparent 70%), var(--bg-2); }
.card__sigil { font-size: 2.4rem; color: var(--gold-soft); opacity: .8; }
.card h3 { font-family: var(--serif); font-weight: 400; font-size: 1.6rem; margin-bottom: 12px; }
.card__desc { color: var(--dim); font-size: .98rem; }
.card__meta { margin-top: 18px; font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; color: var(--gold); }
.offerings__note { max-width: 620px; margin: clamp(40px,6vh,72px) auto 0; text-align: center;
  color: var(--dim); font-size: .84rem; line-height: 1.8; }
@media (max-width: 700px){ .cards { grid-template-columns: 1fr; } }

/* Apply */
.apply__inner { max-width: 620px; margin: 0 auto; text-align: center; }
.apply__lead { color: var(--dim); margin: 22px 0 44px; }
.form { display: grid; gap: 20px; text-align: left; }
.form label { display: grid; gap: 8px; }
.form span { font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--gold-soft); }
.form input, .form textarea {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 8px;
  color: var(--text); font-family: inherit; font-size: 1rem; padding: 14px 16px; resize: vertical;
}
.form input:focus, .form textarea:focus { outline: none; border-color: var(--gold); }

/* Footer */
.footer { position: relative; overflow: hidden; border-top: 1px solid var(--line);
  padding: clamp(90px,16vh,180px) var(--gut); text-align: center;
  background: url("../media/footer.jpg") center/cover no-repeat; }
.footer::after { content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(8,7,6,.42), rgba(8,7,6,.62)); }
.footer > * { position: relative; z-index: 1; }
.footer__tag { font-family: var(--serif); font-style: italic; font-size: clamp(1.2rem, 2.4vw, 1.7rem); color: var(--gold-soft); }
.footer__meta { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; margin-top: 28px;
  font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--dim); }

/* Tagline band — full-bleed atmospheric "breath" */
.band { position: relative; padding: clamp(140px, 28vh, 320px) var(--gut); text-align: center;
  background: url("../media/field.jpg") center/cover no-repeat fixed; overflow: hidden; }
.band::after { content: ""; position: absolute; inset: 0;
  background: radial-gradient(80% 90% at 50% 50%, rgba(8,7,6,.25), rgba(8,7,6,.55)); }
.band__line { position: relative; z-index: 1;
  font-family: var(--serif); font-style: italic; font-weight: 300;
  font-size: clamp(1.5rem, 3.2vw, 2.6rem); line-height: 1.4; letter-spacing: .005em;
  color: var(--gold-soft); max-width: 880px; margin: 0 auto; white-space: pre-line;
  text-shadow: 0 2px 30px rgba(8,7,6,.6); }
body[data-lang="jp"] .band__line { font-family: var(--jp); font-style: normal; }

/* Approach */
.approach__body { max-width: 720px; margin: clamp(30px,5vh,56px) auto 0; text-align: center;
  color: var(--dim); font-size: clamp(1.02rem, 1.4vw, 1.18rem); line-height: 1.85; }

/* Stories / cases */
.stories__intro { max-width: 640px; margin: 22px auto clamp(44px,6vh,72px); text-align: center;
  color: var(--dim); font-size: .9rem; line-height: 1.8; }
.case__k { font-family: var(--serif); color: var(--gold); font-size: .82rem; letter-spacing: .22em; text-transform: uppercase; }
/* Editorial alternating image + text rows (image-rich but premium) */
.storyrows { display: grid; gap: clamp(60px, 10vh, 130px); }
.story { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(28px, 5vw, 80px); align-items: center; }
.story--reverse { direction: rtl; }
.story--reverse > * { direction: ltr; }
.story__img { aspect-ratio: 4 / 5; border-radius: 14px; background: var(--bg-2) center/cover no-repeat;
  box-shadow: 0 30px 80px rgba(0,0,0,.45); }
.story__text h3 { font-family: var(--serif); font-weight: 400; font-size: clamp(1.5rem, 2.6vw, 2.1rem); line-height: 1.22; margin: 14px 0 16px; }
/* editorial-column titles: smaller than full-width section titles so JP fits the half column */
.story__text .section__title { font-size: clamp(1.9rem, 3.2vw, 3rem); line-height: 1.12; }
.story__text p { color: var(--dim); font-size: 1rem; }
@media (max-width: 820px){
  .story, .story--reverse { grid-template-columns: 1fr; direction: ltr; }
  .story__img { aspect-ratio: 16 / 9; }
}

/* Pricing */
.price { max-width: 560px; margin: 0 auto; text-align: center;
  border: 1px solid var(--line); border-radius: 16px; padding: clamp(32px, 4vw, 56px);
  background: linear-gradient(165deg, rgba(111,95,140,.08), rgba(22,34,28,.12)); }
.price__head .card__sigil { display: block; margin-bottom: 14px; }
.price__head h3 { font-family: var(--serif); font-weight: 400; font-size: 1.9rem; }
.price__sub { color: var(--dim); font-size: .82rem; letter-spacing: .18em; text-transform: uppercase; margin-top: 6px; }
.price__rate { margin: 26px 0 8px; }
.price__now { font-family: var(--serif); font-size: 3rem; color: var(--gold-soft); }
.price__now small { font-size: 1rem; color: var(--dim); margin-left: 4px; }
.price__was { display: block; margin-top: 8px; font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); }
.price__desc { color: var(--dim); font-size: .96rem; margin: 18px auto 0; max-width: 420px; }
.price__incl { list-style: none; margin: 26px auto; max-width: 320px; display: grid; gap: 10px; }
.price__incl li { color: var(--text); font-size: .92rem; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.price__incl li::before { content: "◇"; color: var(--gold); margin-right: 10px; font-size: .7rem; }
.price__note { color: var(--dim); font-size: .78rem; margin-bottom: 8px; }

/* Who this is for */
.audience__list { max-width: 980px; margin: 0 auto; list-style: none; display: grid; }
.audience__list li { text-align: center; font-family: var(--serif); font-weight: 400;
  font-size: clamp(1.15rem, 2vw, 1.55rem); line-height: 1.4; color: var(--text);
  padding: 24px 0; border-bottom: 1px solid var(--line); }
.audience__list li:first-child { border-top: 1px solid var(--line); }
body[data-lang="jp"] .audience__list li { font-family: var(--jp); }
.audience__note { text-align: center; color: var(--dim); font-size: .86rem; line-height: 1.8;
  max-width: 560px; margin: 34px auto 0; }

/* FAQ */
.faq__list { max-width: 760px; margin: 0 auto; display: grid; }
.faq__item { padding: 30px 0; border-top: 1px solid var(--line); }
.faq__item:last-child { border-bottom: 1px solid var(--line); }
.faq__item h3 { font-family: var(--serif); font-weight: 400;
  font-size: clamp(1.2rem, 2vw, 1.5rem); margin-bottom: 12px; color: var(--text); }
body[data-lang="jp"] .faq__item h3 { font-family: var(--jp); }
.faq__item p { color: var(--dim); font-size: .98rem; }

/* ============================ Mobile ============================ */
@media (max-width: 760px) {
  /* titles must fit narrow screens (were clipping). Let titles wrap freely (ignore forced breaks). */
  .hero__inner { max-width: 100%; }
  .hero__title { font-size: clamp(2.1rem, 8.5vw, 2.9rem); line-height: 1.08; white-space: normal; }
  body[data-lang="jp"] .hero__title { font-size: clamp(1.9rem, 8vw, 2.7rem); white-space: normal; }
  .section__title { white-space: normal; }
  .section__title { font-size: clamp(1.9rem, 7.5vw, 2.7rem); }
  body[data-lang="jp"] .section__title { font-size: clamp(1.6rem, 6.6vw, 2.2rem); }
  body[data-lang="jp"] .story__text .section__title { font-size: clamp(1.5rem, 6vw, 2rem); }
  .hero__sub { font-size: 1rem; max-width: 90%; }
  .band__line { font-size: clamp(1.3rem, 5.5vw, 1.7rem); }
  /* fixed backgrounds are janky on mobile */
  .band, .footer { background-attachment: scroll; }
  .band { padding: clamp(90px, 22vh, 160px) var(--gut); }
  .audience__list li { font-size: 1.05rem; }
}

/* ============================ Reduced motion ============================ */
@media (prefers-reduced-motion: reduce) {
  .hero__glow, .hero__beam, .hero__scroll span, .loader__mark { animation: none; }
  body:not(.no-js) [data-reveal] { opacity: 1; }
}