/* NYANZ — Particles & Play
   参照: oneshot-sakura と同構成 / 世界観: ポータルの3D粒子（ダーク×シアン×パープル） */

:root {
  --bg: #05060c;
  --bg-soft: #0b0e1a;
  --ink: #eef1f8;
  --sub: #96a0b9;
  --cyan: #3df0ff;
  --purple: #b46bff;
  --line: rgba(255, 255, 255, .12);
  --font-head: "Dela Gothic One", system-ui, sans-serif;
  --font-serif: "Cormorant Garamond", serif;
  --font-jp: "Shippori Mincho", serif;
}

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

html { background: var(--bg); }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-jp);
  font-weight: 400;
  overflow-x: hidden;
  line-height: 1.8;
}

::selection { background: rgba(61, 240, 255, .35); }

/* ---------- ローディング ---------- */

.loader {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--bg-soft);
  display: grid;
  place-content: center;
  gap: 28px;
}

.loader__seal {
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  color: #04121a;
  font-family: var(--font-head);
  font-size: 30px;
  display: grid;
  place-content: center;
}

.loader__bar {
  width: 92px;
  height: 2px;
  background: rgba(255, 255, 255, .16);
  overflow: hidden;
}

.loader__bar span {
  display: block;
  height: 100%;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
}

/* ---------- ナビ ---------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px clamp(20px, 4vw, 56px);
  mix-blend-mode: normal;
}

.nav__mark {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-head);
  font-size: 15px;
}

.nav__mark span {
  font-size: 12px;
  letter-spacing: .34em;
  color: var(--sub);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.6vw, 34px);
}

.nav__links a {
  color: var(--sub);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: .18em;
  transition: color .25s;
}

.nav__links a:hover { color: var(--cyan); }

.nav__links a.nav__cta {
  color: #04121a;
  background: linear-gradient(135deg, var(--cyan), #6ad9ff);
  padding: 9px 20px;
  border-radius: 999px;
}

.nav__links a.nav__cta:hover { color: #04121a; filter: brightness(1.1); }

/* ---------- 浮遊粒子キャンバス ---------- */

#particles {
  position: fixed;
  inset: 0;
  z-index: 40;
  pointer-events: none;
}

/* ---------- 共通 ---------- */

section, header.hero, footer.cta { position: relative; }

.split .char { display: inline-block; }

/* 日本語を文節単位で自然に折り返す（対応ブラウザのみ。非対応は通常の折り返しにフォールバック） */
.scrub__caption h3, .scrub__caption p,
.panel__text h3, .panel__text p,
.still__sub, .cta__inner p, .hero__sub {
  word-break: auto-phrase;
  line-break: strict;
}

.reveal-line { overflow: hidden; }
.reveal-line > span { display: inline-block; }

/* ---------- ヒーロー ---------- */

.hero {
  height: 100svh;
  overflow: hidden;
  display: grid;
  place-content: center;
  text-align: center;
  isolation: isolate; /* z-index:-2 の動画が body 背景の裏に回らないようにする */
}

.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}

.hero__wash {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse at 50% 72%, rgba(5, 6, 12, .05), rgba(5, 6, 12, .6)),
    linear-gradient(rgba(5, 6, 12, .3), rgba(5, 6, 12, .12) 40%, rgba(5, 6, 12, .5));
}

.hero__vertical {
  position: absolute;
  top: 50%;
  right: clamp(18px, 5vw, 72px);
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  font-family: var(--font-jp);
  font-size: clamp(15px, 1.6vw, 21px);
  letter-spacing: .42em;
  color: rgba(238, 241, 248, .82);
}

.hero__kicker {
  font-size: 13px;
  letter-spacing: .32em;
  color: var(--cyan);
  margin-bottom: 26px;
}

.hero__title {
  font-family: var(--font-head);
  font-size: clamp(64px, 14vw, 190px);
  line-height: .96;
  letter-spacing: .02em;
  color: var(--ink);
  /* background-clip:text は文字分割アニメと相性が悪いのでネオン発光で表現 */
  text-shadow:
    0 0 18px rgba(61, 240, 255, .55),
    0 0 60px rgba(61, 240, 255, .30),
    0 0 110px rgba(180, 107, 255, .35);
}

.hero__sub {
  margin-top: 26px;
  font-size: clamp(17px, 2vw, 23px);
  letter-spacing: .08em;
  color: rgba(238, 241, 248, .88);
}

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 30px;
  transform: translateX(-50%);
  display: grid;
  justify-items: center;
  gap: 10px;
  font-size: 11px;
  letter-spacing: .4em;
  text-transform: uppercase;
  color: var(--sub);
}

.hero__scroll i {
  width: 1px;
  height: 52px;
  background: linear-gradient(var(--cyan), transparent);
  animation: drip 1.8s ease-in-out infinite;
}

@keyframes drip {
  0% { transform: scaleY(0); transform-origin: top; }
  45% { transform: scaleY(1); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- 詩 ---------- */

.poem {
  min-height: 92svh;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 120px 24px;
  background: linear-gradient(var(--bg), var(--bg-soft) 50%, var(--bg));
}

.poem__jp {
  font-family: var(--font-jp);
  letter-spacing: .68em;
  color: var(--purple);
  font-size: clamp(13px, 1.6vw, 17px);
  margin-bottom: 38px;
}

.poem__text {
  font-weight: 300;
  font-size: clamp(30px, 5vw, 62px);
  line-height: 1.32;
}

.poem__text .line { display: block; overflow: hidden; }
.poem__text .line > span { display: inline-block; }
.poem__text em { font-style: normal; color: var(--cyan); }

.poem__seal {
  margin: 54px auto 0;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--purple);
  font-family: var(--font-jp);
  font-size: 15px;
  letter-spacing: .1em;
  display: grid;
  place-content: center;
}

/* ---------- スクラブ（ビリビリ） ---------- */

.scrub__pin {
  height: 100svh;
  overflow: hidden;
  position: relative;
}

.scrub__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scrub__kanji {
  position: absolute;
  top: 50%;
  left: clamp(16px, 6vw, 90px);
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  font-family: var(--font-jp);
  font-weight: 700;
  font-size: clamp(64px, 11vw, 150px);
  color: rgba(238, 241, 248, .14);
  letter-spacing: .18em;
  pointer-events: none;
}

.scrub__caption {
  position: absolute;
  right: clamp(20px, 7vw, 110px);
  bottom: clamp(60px, 14vh, 140px);
  max-width: 420px;
  background: rgba(5, 6, 12, .55);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
  padding: 30px 32px;
  border-radius: 18px;
}

.scrub__num {
  font-family: var(--font-jp);
  color: var(--cyan);
  font-size: 15px;
  letter-spacing: .3em;
}

.scrub__caption h3 {
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(20px, 2.4vw, 28px);
  margin: 12px 0 10px;
}

.scrub__caption p { color: var(--sub); font-size: 16px; }

/* ---------- ギャラリー ---------- */

.gallery {
  padding: clamp(110px, 16vh, 190px) clamp(20px, 6vw, 96px);
  background: linear-gradient(var(--bg), var(--bg-soft) 30%, var(--bg));
}

.gallery__headwrap { text-align: center; margin-bottom: clamp(80px, 12vh, 150px); }

.gallery__jp {
  font-family: var(--font-jp);
  letter-spacing: .68em;
  color: var(--purple);
  font-size: clamp(13px, 1.6vw, 17px);
  margin-bottom: 22px;
}

.gallery__head {
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(42px, 8vw, 104px);
  line-height: 1;
  overflow: hidden;
}

.panel {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: clamp(28px, 5vw, 80px);
  align-items: center;
  max-width: 1240px;
  margin: 0 auto clamp(110px, 16vh, 190px);
}

.panel--right { grid-template-columns: .85fr 1.15fr; }
.panel--right .panel__img { order: 2; }
.panel--right .panel__text { order: 1; text-align: right; }

.panel__img {
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid var(--line);
  aspect-ratio: 16 / 10;
}

.panel__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.panel__num {
  font-family: var(--font-jp);
  color: var(--cyan);
  letter-spacing: .3em;
  font-size: 15px;
}

.panel__text h3 {
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(24px, 3vw, 38px);
  margin: 14px 0 14px;
  line-height: 1.25;
}

.panel__text p { color: var(--sub); font-size: 17px; max-width: 46ch; }
.panel--right .panel__text p { margin-left: auto; }

.panel__link {
  display: inline-block;
  margin-top: 22px;
  color: var(--cyan);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: .14em;
  border-bottom: 1px solid rgba(61, 240, 255, .4);
  padding-bottom: 6px;
  transition: color .25s, border-color .25s;
}

.panel__link:hover { color: var(--purple); border-color: var(--purple); }

/* ---------- 静止スクラブ（猫） ---------- */

.still__pin {
  height: 100svh;
  overflow: hidden;
  position: relative;
  display: grid;
  place-content: center;
  text-align: center;
  isolation: isolate; /* hero と同じく z-index:-2 の動画を背景の裏に回らせない */
}

.still__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}

.still__veil {
  position: absolute;
  inset: 0;
  background: var(--bg);
  z-index: -1;
}

.still__content { padding: 0 24px; }

.still__jp {
  font-family: var(--font-jp);
  letter-spacing: .58em;
  color: var(--cyan);
  font-size: clamp(13px, 1.7vw, 18px);
  margin-bottom: 26px;
}

.still__content h2 {
  font-weight: 300;
  font-size: clamp(34px, 6vw, 74px);
  overflow: hidden;
}

.still__sub {
  margin: 24px auto 0;
  max-width: 42ch;
  color: rgba(238, 241, 248, .8);
  font-size: clamp(15px, 1.8vw, 19px);
}

/* ---------- フッターCTA ---------- */

.cta {
  padding: clamp(120px, 18vh, 210px) 24px 0;
  text-align: center;
  background: linear-gradient(var(--bg), #04121a);
}

.cta__jp {
  display: block;
  font-family: var(--font-jp);
  letter-spacing: .68em;
  color: var(--purple);
  font-size: clamp(13px, 1.6vw, 17px);
  margin-bottom: 24px;
}

.cta h2 {
  font-weight: 300;
  font-size: clamp(34px, 6vw, 76px);
  overflow: hidden;
}

.cta__inner p {
  margin: 26px auto 0;
  color: var(--sub);
  font-size: clamp(15px, 1.8vw, 19px);
}

.cta__btn {
  display: inline-block;
  margin-top: 44px;
  color: #04121a;
  background: linear-gradient(135deg, var(--cyan), #6ad9ff);
  text-decoration: none;
  font-family: var(--font-head);
  font-size: 15px;
  letter-spacing: .12em;
  padding: 18px 46px;
  border-radius: 999px;
  transition: transform .3s, box-shadow .3s;
}

.cta__btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 42px rgba(61, 240, 255, .35);
}

.cta__foot {
  margin-top: clamp(90px, 14vh, 150px);
  border-top: 1px solid var(--line);
  padding: 26px clamp(20px, 4vw, 56px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--sub);
  font-size: 13px;
  letter-spacing: .14em;
}

.cta__seal {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: grid;
  place-content: center;
  font-family: var(--font-head);
  font-size: 13px;
  color: var(--cyan);
}

/* ---------- レスポンシブ ---------- */

@media (max-width: 820px) {
  .nav__links a:not(.nav__cta) { display: none; }
  .hero__vertical { display: none; }
  .panel, .panel--right { grid-template-columns: 1fr; }
  .panel--right .panel__img { order: 0; }
  .panel--right .panel__text { text-align: left; }
  .panel--right .panel__text p { margin-left: 0; }
  .scrub__caption { right: 16px; left: 16px; max-width: none; }
}