/* ============================================================
   FUTATOKI INC. — style.css
   ソフトグラデ路線：温白 × アプリコット→淡青の霧 / 細タイポ / 余白の意図的ムラ
   ============================================================ */

:root {
  --bg: #fbf9f5;             /* 温白 */
  --ink: #43403a;            /* やわらかい墨 */
  --ink-dim: rgba(67, 64, 58, 0.74);
  --line: rgba(67, 64, 58, 0.14);
  --apricot: #f0b48c;        /* グラデ起点 */
  --skyblue: #c2d5e6;        /* グラデ終点 */
  --accent: #d69062;         /* リンク・小さな印 */
  --font-en: europa, "dnp-shuei-gothic-gin-std", sans-serif;
  --font-mincho: "dnp-shuei-mincho-pr6n", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-ja: "dnp-shuei-gothic-gin-std", "Hiragino Kaku Gothic ProN", sans-serif;
  --ease: cubic-bezier(0.25, 1, 0.5, 1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-ja);
  font-weight: 500;
  line-height: 2.0;
  letter-spacing: 0.04em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 7vw; }
.sp { display: none; }

/* ---------- Reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 1.4s var(--ease), transform 1.4s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .logo-marquee__track { animation: none !important; }
  .hero__line span { transform: none !important; transition: none !important; }
  .hero__wash, .contact__wash { animation: none !important; }
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 30px 5vw;
  transition: background 0.5s, padding 0.5s;
}
.header.is-scrolled {
  background: rgba(251, 249, 245, 0.8);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 16px 5vw;
}
.header__logo {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.5em;
}
.header__nav {
  display: flex;
  align-items: center;
  gap: 40px;
  font-family: var(--font-en);
  font-weight: 400;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.header__nav a { opacity: 0.72; transition: opacity 0.4s; }
.header__nav a:hover { opacity: 1; }
.lang-toggle {
  font-family: var(--font-en);
  font-weight: 400;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  padding: 6px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: none;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.3s, color 0.3s;
}
.lang-toggle:hover { border-color: var(--accent); color: var(--accent); }
.header__burger { display: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}
.hero__wash {
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(ellipse 55% 50% at 24% 68%, var(--apricot) 0%, transparent 65%),
    radial-gradient(ellipse 50% 45% at 78% 30%, var(--skyblue) 0%, transparent 65%),
    radial-gradient(ellipse 40% 38% at 62% 78%, #f6d4bc 0%, transparent 60%);
  opacity: 0.55;
  filter: blur(48px);
  animation: washDrift 24s ease-in-out infinite alternate;
}
@keyframes washDrift {
  from { transform: translate3d(-2%, -1%, 0) scale(1); }
  to   { transform: translate3d(2%, 2%, 0) scale(1.06); }
}
.hero__inner { position: relative; z-index: 2; padding: 0 7vw; }
.hero__title {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: clamp(2.2rem, 6.5vw, 4.6rem);
  letter-spacing: 0.26em;
  text-indent: 0.26em; /* 字間による右ズレ補正 */
  line-height: 1.2;
  white-space: nowrap;
}
.hero__line { display: block; overflow: hidden; }
.hero__line span {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 1.6s var(--ease);
}
.hero.is-loaded .hero__line span { transform: translateY(0); transition-delay: 0.2s; }
.hero__sub {
  margin-top: 26px;
  font-family: var(--font-en);
  font-weight: 400;
  font-size: 0.78rem;
  letter-spacing: 0.32em;
  text-indent: 0.32em;
  color: var(--ink-dim);
  transition-delay: 0.7s;
}
.hero__copy {
  margin-top: 56px;
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  letter-spacing: 0.14em;
  transition-delay: 1s;
}
.hero__scroll {
  position: absolute;
  bottom: 0;
  left: 50%;
  z-index: 2;
}
.hero__scroll i {
  display: block;
  width: 1px;
  height: 72px;
  background: var(--line);
  position: relative;
  overflow: hidden;
}
.hero__scroll i::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--accent);
  animation: scrollLine 2.8s var(--ease) infinite;
}
@keyframes scrollLine {
  0% { transform: translateY(-100%); }
  55% { transform: translateY(0); }
  100% { transform: translateY(102%); }
}

/* 文節折り返しは見出し・キャッチのみ（本文はベタ組み） */
.hero__copy,
.manifesto__line,
.about__title,
.contact__title,
.section__title,
.service__name {
  word-break: auto-phrase;
}

/* ---------- Logo Marquee ---------- */
.logo-marquee {
  overflow: hidden;
  padding: clamp(30px, 4vw, 48px) 0;
  border-bottom: 1px solid var(--line);
}
.logo-marquee__track {
  display: flex;
  align-items: center;
  gap: clamp(56px, 7vw, 100px);
  width: max-content;
  animation: logoFlow 42s linear infinite;
}
.logo-marquee:hover .logo-marquee__track { animation-play-state: paused; }
.logo-marquee img {
  height: clamp(24px, 2.6vw, 34px);
  width: auto;
  object-fit: contain;
  filter: saturate(0.92);
  flex-shrink: 0;
}
@keyframes logoFlow {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- Manifesto ---------- */
.manifesto {
  padding: clamp(100px, 15vh, 170px) 7vw;
  max-width: 900px;
  margin: 0 auto;
}
.manifesto__line {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  line-height: 2.3;
  letter-spacing: 0.1em;
  margin-bottom: clamp(70px, 11vh, 120px);
}
/* 意図的な不均等：行ごとに位置をずらす */
.manifesto__line:nth-child(1) { margin-left: 0; }
.manifesto__line:nth-child(2) { margin-left: clamp(0px, 12vw, 150px); }
.manifesto__line:nth-child(3) { margin-left: clamp(0px, 4vw, 50px); }
.manifesto__line--last {
  margin-left: clamp(0px, 11vw, 140px) !important;
  margin-bottom: 0;
  color: var(--accent);
}

/* ---------- Sections common ---------- */
.section { padding: clamp(90px, 13vh, 150px) 0; position: relative; }
.section__label {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: clamp(50px, 7vw, 76px);
}
.section__title {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: clamp(1.4rem, 2.8vw, 1.8rem);
  letter-spacing: 0.12em;
  margin-bottom: clamp(70px, 10vw, 110px);
}

/* ---------- About ---------- */
.about__grid {
  max-width: 760px;
  margin-bottom: clamp(90px, 13vw, 140px);
}
.about .section__label { margin-bottom: 26px; }
.members .section__label { margin-bottom: 26px; }
.contact .section__label { margin-bottom: 26px; }
.about__photo {
  margin-bottom: clamp(60px, 9vw, 100px);
  overflow: hidden;
}
.about__photo img {
  width: 100%;
  aspect-ratio: 2560 / 1256;
  object-fit: cover;
  filter: saturate(0.88) contrast(0.97);
}
.about__title {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: clamp(1.5rem, 3vw, 1.9rem);
  letter-spacing: 0.12em;
  margin-bottom: 46px;
}
.about__body p:not(.about__title) {
  color: var(--ink-dim);
  font-size: 0.98rem;
  margin-bottom: 2em;
  max-width: 34em;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  border-top: 1px solid var(--line);
  padding-top: 56px;
}
.stat__num {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: clamp(2rem, 3.6vw, 2.8rem);
  line-height: 1;
  letter-spacing: 0.02em;
}
.stat__num small {
  font-family: var(--font-ja);
  font-weight: 300;
  font-size: 0.38em;
  margin-left: 6px;
}
.stat__label { margin-top: 14px; font-size: 0.78rem; color: var(--ink-dim); }

/* ---------- Services ---------- */
.services__list { max-width: 860px; }
.service {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 10px 40px;
  padding: clamp(44px, 6vw, 64px) 0;
  border-top: 1px solid var(--line);
}
.service:last-child { border-bottom: 1px solid var(--line); }
.service__num {
  font-family: var(--font-en);
  font-weight: 400;
  font-size: 1rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  padding-top: 6px;
}
.service__name {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  letter-spacing: 0.14em;
}
.service__desc {
  grid-column: 2;
  color: var(--ink-dim);
  font-size: 0.92rem;
  max-width: 38em;
}
/* 意図的なムラ：偶数項目を右へ */
.service:nth-child(even) { margin-left: clamp(0px, 8vw, 110px); }

/* ---------- Works ---------- */
.works__group {
  font-family: var(--font-en);
  font-weight: 300;
  font-size: 0.8rem;
  letter-spacing: 0.28em;
  color: var(--ink-dim);
  margin: clamp(50px, 7vw, 80px) 0 clamp(36px, 5vw, 56px);
}
.works__flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(56px, 7vw, 90px) clamp(28px, 3.5vw, 48px);
}
.work__media {
  position: relative;
  aspect-ratio: 506 / 800;
  overflow: hidden;
  margin-bottom: 26px;
}
.work__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease), opacity 0.7s;
  filter: saturate(0.92);
}
.work__media .work__hover { opacity: 0; }
.work:hover .work__media img { transform: scale(1.03); }
.work:hover .work__media .work__hover { opacity: 1; }
.work__media--soon {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.3);
}
.work__media--soon span {
  font-family: var(--font-en);
  font-weight: 400;
  font-size: 1.3rem;
  letter-spacing: 0.35em;
  line-height: 2;
  color: var(--ink-dim);
  text-align: center;
}
.work__cat {
  font-family: var(--font-en);
  font-weight: 300;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.work__name {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  letter-spacing: 0.12em;
  margin-bottom: 18px;
}
.work__desc {
  font-size: 0.92rem;
  color: var(--ink-dim);
  max-width: 32em;
  margin-bottom: 26px;
}
.work__metric {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}
.work__metric strong {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.04em;
}
.work__metric span { font-size: 0.74rem; color: var(--ink-dim); }
.work__handle {
  margin-top: 6px;
  font-family: var(--font-en);
  font-weight: 300;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--ink-dim);
}

/* ---------- Clients ---------- */
.clients__wall {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.clients__wall li {
  padding: clamp(28px, 3.6vw, 44px) clamp(16px, 2vw, 28px);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
}
.clients__wall img {
  max-height: clamp(30px, 3.6vw, 46px);
  max-width: min(150px, 78%);
  width: auto;
  object-fit: contain;
  filter: saturate(0.92);
}
.clients__note {
  margin-top: 20px;
  font-size: 0.76rem;
  color: var(--ink-dim);
}

/* ---------- Members ---------- */
.members__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(60px, 9vw, 110px);
}
.member:nth-child(2) { margin-top: clamp(0px, 6vw, 80px); }
.member__num {
  font-family: var(--font-en);
  font-weight: 400;
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  color: var(--accent);
  margin-bottom: 20px;
}
.member__name {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: clamp(1.35rem, 2.6vw, 1.7rem);
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}
.member__ja { font-size: 0.85rem; color: var(--ink-dim); letter-spacing: 0.14em; margin-bottom: 24px; }
.member__tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.member__tags span {
  font-size: 0.72rem;
  padding: 5px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-dim);
  letter-spacing: 0.1em;
}
.member__bio { font-size: 0.88rem; color: var(--ink-dim); max-width: 30em; }

/* ---------- Company ---------- */
.company__table {
  max-width: 760px;
  border-top: 1px solid var(--line);
}
.company__table > div {
  display: grid;
  grid-template-columns: clamp(110px, 16vw, 160px) 1fr;
  gap: 16px;
  padding: clamp(20px, 2.6vw, 28px) 0;
  border-bottom: 1px solid var(--line);
}
.company__table dt {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--ink-dim);
  padding-top: 2px;
}
.company__table dd {
  font-size: 0.92rem;
  line-height: 1.9;
}
.company__table a { border-bottom: 1px solid var(--accent); }
.company__table a:hover { color: var(--accent); }

/* ---------- Contact ---------- */
.contact { overflow: hidden; }
.contact__wash {
  position: absolute;
  inset: -30% -10%;
  background:
    radial-gradient(ellipse 50% 45% at 70% 65%, var(--apricot) 0%, transparent 65%),
    radial-gradient(ellipse 45% 40% at 25% 35%, var(--skyblue) 0%, transparent 65%);
  opacity: 0.4;
  filter: blur(56px);
  animation: washDrift 28s ease-in-out infinite alternate;
}
.contact .container { position: relative; z-index: 2; }
.contact__title {
  font-family: var(--font-mincho);
  font-weight: 600;
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  letter-spacing: 0.2em;
  margin-bottom: 40px;
}
.contact__lead { color: var(--ink-dim); font-size: 0.95rem; margin-bottom: clamp(50px, 7vw, 70px); }
.contact__mail {
  display: inline-block;
  font-family: var(--font-en);
  font-weight: 400;
  font-size: clamp(1.15rem, 2.6vw, 1.7rem);
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 10px;
  transition: color 0.4s, letter-spacing 0.6s var(--ease);
}
.contact__mail:hover { color: var(--accent); letter-spacing: 0.09em; }

/* ---------- Footer ---------- */
.footer {
  padding: 60px 7vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  border-top: 1px solid var(--line);
}
.footer__logo { font-family: var(--font-en); font-weight: 700; font-size: 0.85rem; letter-spacing: 0.5em; }
.footer__copy { font-size: 0.72rem; color: var(--ink-dim); letter-spacing: 0.08em; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1000px) {
  .works__flow { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 880px) {
  .sp { display: inline; }
  .header { padding: 20px 6vw; }
  .header__burger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 7px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 120;
    padding: 18px 10px;
    margin: -12px -4px;
  }
  .header__burger span {
    width: 26px;
    height: 1px;
    background: var(--ink);
    transition: transform 0.4s var(--ease);
  }
  .header__burger.is-open span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
  .header__burger.is-open span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }
  .header__nav {
    position: fixed;
    inset: 0;
    background: rgba(251, 249, 245, 0.96);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    flex-direction: column;
    justify-content: center;
    gap: 44px;
    font-size: 1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s;
  }
  .header__nav.is-open { opacity: 1; pointer-events: auto; }

  .about__photo img { aspect-ratio: 16 / 10; }
  .stats { grid-template-columns: repeat(2, 1fr); }

  .works__flow { grid-template-columns: 1fr; }
  .work__media { max-width: 420px; }

  .members__grid { grid-template-columns: 1fr; }
  .clients__wall { grid-template-columns: repeat(2, 1fr); }
  .member:nth-child(2) { margin-top: 0; }
  .service:nth-child(even) { margin-left: 0; }
  .manifesto__line { margin-left: 0 !important; }
  .manifesto__line--last { color: var(--accent); }
}


/* ---------- English mode ---------- */
html[lang="en"] body { letter-spacing: 0.01em; }
html[lang="en"] .hero__copy,
html[lang="en"] .manifesto__line,
html[lang="en"] .about__title,
html[lang="en"] .contact__title,
html[lang="en"] .section__title,
html[lang="en"] .service__name,
html[lang="en"] .work__name {
  font-family: var(--font-en);
  letter-spacing: 0.03em;
  word-break: normal;
}
html[lang="en"] .manifesto__line { line-height: 1.9; font-weight: 400; }
html[lang="en"] .hero__copy { font-weight: 400; }