/* ============================================================
   BLUE FESTA 2026 — 特設サイト
   Design concept: ページ全体で「空 → 深海 → 浮上」を体験する
   ============================================================ */

:root {
  /* 青のスケール（空 → 深海） */
  --sky-050: #f4fbff;
  --sky-100: #eaf6ff;
  --sky-200: #dff2ff;
  --sky-300: #bfe6ff;
  --sky-400: #8fd4ff;
  --sky-500: #5db4ee;
  --blue-500: #2d9cdb;
  --blue-600: #1a7cc4;
  --blue-700: #0d5ba1;
  --navy-700: #0b3d7a;
  --navy-800: #082a5e;
  --deep-800: #071d45;
  --deep-900: #041230;
  --abyss: #020a1e;

  --cyan: #55e0ff;
  --cyan-soft: rgba(85, 224, 255, .35);
  --foam: #eaf7ff;

  --ink: #0b2440;          /* 明るい背景上の文字色 */
  --ink-soft: #3d5a7d;

  --font-ja: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", sans-serif;
  --font-min: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --font-en: "Montserrat", "Helvetica Neue", sans-serif;

  --radius: 18px;
  --shadow-soft: 0 10px 40px rgba(13, 91, 161, .12);
  --shadow-card: 0 6px 24px rgba(13, 91, 161, .10);
  --nav-h: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 12px);
}

body {
  font-family: var(--font-ja);
  color: var(--ink);
  background: var(--sky-100);
  line-height: 1.9;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--blue-600); text-decoration-thickness: 1px; text-underline-offset: 3px; }
ul, ol { list-style: none; }
em { font-style: normal; }

.container { width: min(1120px, calc(100% - 3rem)); margin-inline: auto; }
.container--narrow { width: min(760px, calc(100% - 3rem)); }

.section { padding-block: clamp(4.5rem, 9vw, 8rem); position: relative; }

/* ---------- 見出しの共通スタイル ---------- */
.section__eyebrow {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .35em;
  color: var(--blue-500);
  margin-bottom: .9rem;
}
.section__eyebrow--light { color: var(--cyan); }
.section__title {
  font-size: clamp(1.55rem, 3.6vw, 2.4rem);
  font-weight: 900;
  letter-spacing: .06em;
  line-height: 1.5;
  margin-bottom: 1.2rem;
}
.section__title--light { color: var(--foam); }

/* ---------- reveal アニメーション ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .8s ease, transform .8s cubic-bezier(.22, .8, .3, 1);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- ボタン ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-ja);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .08em;
  padding: .95em 2.2em;
  border-radius: 999px;
  text-decoration: none;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
  text-align: center;
}
.btn:hover { transform: translateY(-2px); }
.btn--lg { font-size: 1.05rem; padding: 1.1em 3em; }

.btn--primary {
  background: linear-gradient(135deg, var(--blue-500), var(--navy-700));
  color: #fff;
  box-shadow: 0 8px 24px rgba(13, 91, 161, .35);
}
.btn--primary:hover { box-shadow: 0 12px 32px rgba(13, 91, 161, .45); }

.btn--ghost {
  border: 2px solid var(--ink);
  color: var(--ink);
  background: rgba(255, 255, 255, .35);
}
.btn--ghost:hover { background: rgba(255, 255, 255, .7); }

.btn--glow {
  background: linear-gradient(135deg, var(--cyan), var(--blue-500));
  color: var(--deep-900);
  font-weight: 900;
  box-shadow: 0 0 28px var(--cyan-soft), 0 8px 24px rgba(0, 0, 0, .35);
}
.btn--glow:hover { box-shadow: 0 0 44px var(--cyan-soft), 0 12px 32px rgba(0, 0, 0, .4); }

.btn--ghost-dark {
  border: 2px solid rgba(255, 255, 255, .8);
  color: #fff;
  white-space: nowrap;
}
.btn--ghost-dark:hover { background: rgba(255, 255, 255, .12); }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: clamp(1rem, 3vw, 2.2rem);
  z-index: 100;
  transition: background .35s ease, box-shadow .35s ease, backdrop-filter .35s ease;
}
.nav.is-scrolled {
  background: rgba(244, 251, 255, .82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 2px 20px rgba(11, 36, 64, .08);
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  color: var(--ink);
}
.nav__mark { width: 34px; height: 34px; }
.nav__wordmark {
  font-family: var(--font-en);
  font-weight: 800;
  letter-spacing: .12em;
  font-size: 1rem;
}
.nav__wordmark em { color: var(--blue-500); }

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(.9rem, 1.8vw, 1.6rem);
}
.nav__links a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: .85rem;
  letter-spacing: .06em;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.3;
  transition: color .2s ease;
}
.nav__links a small {
  font-size: .58rem;
  font-weight: 500;
  color: var(--ink-soft);
  letter-spacing: .12em;
}
.nav__links a:hover { color: var(--blue-500); }
.nav__cta {
  background: linear-gradient(135deg, var(--blue-500), var(--navy-700));
  color: #fff !important;
  padding: .55em 1.4em;
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(13, 91, 161, .3);
}
.nav__cta:hover { color: #fff !important; opacity: .92; }

.nav__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: 0;
  cursor: pointer;
  z-index: 110;
}
.nav__burger span {
  display: block;
  width: 24px;
  height: 2px;
  margin-inline: auto;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease, background .3s ease;
}

@media (max-width: 900px) {
  .nav__burger { display: flex; }
  .nav__links {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    gap: 1.6rem;
    background: linear-gradient(180deg, var(--navy-800), var(--abyss));
    opacity: 0;
    pointer-events: none;
    transition: opacity .35s ease;
  }
  .nav__links a { color: var(--foam); font-size: 1.15rem; }
  .nav__links a small { color: var(--sky-400); }
  .nav__links a:hover { color: var(--cyan); }
  body.nav-open .nav__links { opacity: 1; pointer-events: auto; }
  body.nav-open { overflow: hidden; }
  body.nav-open .nav__burger span { background: var(--foam); }
  body.nav-open .nav__burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  body.nav-open .nav__burger span:nth-child(2) { opacity: 0; }
  body.nav-open .nav__burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* ============================================================
   HERO — 空
   ============================================================ */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 80% at 50% -10%, #ffffff 0%, rgba(255, 255, 255, 0) 55%),
    linear-gradient(180deg, var(--sky-200) 0%, var(--sky-300) 34%, var(--sky-400) 62%, var(--sky-500) 100%);
  padding: calc(var(--nav-h) + 2rem) 1.5rem 9rem;
}

.hero__sky { position: absolute; inset: 0; pointer-events: none; }
.cloud {
  position: absolute;
  background: rgba(255, 255, 255, .75);
  border-radius: 999px;
  filter: blur(28px);
}
.cloud--1 { width: 340px; height: 90px; top: 16%; left: -8%; animation: drift 46s linear infinite; }
.cloud--2 { width: 260px; height: 70px; top: 34%; right: -6%; animation: drift 58s linear infinite reverse; }
.cloud--3 { width: 420px; height: 110px; bottom: 18%; left: 12%; animation: drift 66s linear infinite; opacity: .6; }
@keyframes drift {
  from { transform: translateX(-12vw); }
  to   { transform: translateX(112vw); }
}

.hero__inner { position: relative; z-index: 2; width: min(880px, 100%); }

.hero__date { margin-bottom: clamp(1rem, 3vh, 1.8rem); }
.hero__date-main {
  display: block;
  font-family: var(--font-en);
  font-weight: 800;
  font-size: clamp(1.3rem, 3.4vw, 1.9rem);
  letter-spacing: .12em;
  color: var(--navy-800);
}
.hero__date-main small { font-size: .55em; letter-spacing: .3em; margin-left: .4em; }
.hero__date-sub {
  display: block;
  font-weight: 700;
  font-size: clamp(.8rem, 2vw, .95rem);
  letter-spacing: .14em;
  color: var(--navy-700);
  margin-top: .2rem;
}

.hero__title-en {
  display: block;
  font-family: var(--font-en);
  font-weight: 800;
  font-size: clamp(3.4rem, 13vw, 8.2rem);
  line-height: .95;
  letter-spacing: .06em;
  background: linear-gradient(180deg, var(--navy-700) 0%, var(--blue-600) 55%, var(--blue-500) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 18px 50px rgba(255, 255, 255, .35);
}
.hero__title-ja {
  display: block;
  margin-top: 1.1rem;
  font-weight: 700;
  font-size: clamp(.9rem, 2.4vw, 1.15rem);
  letter-spacing: .42em;
  text-indent: .42em;
  color: var(--navy-800);
}

.hero__tagline {
  margin-top: clamp(.9rem, 2.5vh, 1.5rem);
  font-family: var(--font-min);
  font-weight: 600;
  font-size: clamp(.85rem, 4vw, 1.35rem);
  letter-spacing: .14em;
  color: var(--navy-800);
  white-space: nowrap;
}

.hero__badges {
  display: flex;
  justify-content: center;
  gap: .7rem;
  margin-top: 1.4rem;
  flex-wrap: wrap;
}
.badge {
  font-weight: 900;
  font-size: .82rem;
  letter-spacing: .1em;
  padding: .5em 1.3em;
  border-radius: 999px;
}
.badge--free { background: #fff; color: var(--blue-600); box-shadow: var(--shadow-card); }
.badge--deep { background: var(--deep-900); color: var(--cyan); box-shadow: 0 6px 20px rgba(4, 18, 48, .35); }

.countdown { margin-top: clamp(1.4rem, 4vh, 2.4rem); }
.countdown__label {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: .68rem;
  letter-spacing: .5em;
  color: var(--navy-700);
  margin-bottom: .6rem;
}
.countdown__grid {
  display: flex;
  justify-content: center;
  gap: clamp(.5rem, 1.6vw, 1rem);
}
.countdown__cell {
  background: rgba(255, 255, 255, .65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 14px;
  padding: .7rem 1rem .55rem;
  min-width: clamp(64px, 16vw, 96px);
  box-shadow: var(--shadow-card);
}
.countdown__cell b {
  display: block;
  font-family: var(--font-en);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.5vw, 2.3rem);
  line-height: 1.1;
  color: var(--navy-800);
  font-variant-numeric: tabular-nums;
}
.countdown__cell span {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: .6rem;
  letter-spacing: .25em;
  color: var(--blue-600);
}
.countdown--over .countdown__grid { display: none; }
.countdown__message {
  font-weight: 900;
  font-size: 1.2rem;
  letter-spacing: .2em;
  color: var(--navy-800);
}

.hero__actions {
  display: flex;
  justify-content: center;
  gap: .9rem;
  margin-top: clamp(1.5rem, 4vh, 2.4rem);
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 1.6rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  text-decoration: none;
  z-index: 2;
}
.hero__scroll-text {
  font-family: var(--font-en);
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .4em;
  color: var(--navy-800);
}
.hero__scroll-line {
  width: 1px;
  height: 46px;
  background: var(--navy-800);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--foam);
  animation: scrollhint 2.2s ease-in-out infinite;
}
@keyframes scrollhint {
  0% { transform: translateY(-100%); }
  55%, 100% { transform: translateY(100%); }
}

/* ============================================================
   NEWS
   ============================================================ */
.news { background: #fff; padding-block: 1.4rem; border-bottom: 1px solid var(--sky-200); }
.news__row { display: flex; gap: 2rem; align-items: flex-start; }
.news__heading {
  font-family: var(--font-en);
  font-size: .85rem;
  font-weight: 800;
  letter-spacing: .3em;
  color: var(--blue-500);
  padding-top: .25rem;
}
.news__list { flex: 1; display: grid; gap: .35rem; }
.news__list li { display: flex; gap: 1.2rem; font-size: .88rem; flex-wrap: wrap; }
.news__list time { font-family: var(--font-en); font-weight: 600; color: var(--ink-soft); }
@media (max-width: 640px) {
  .news__row { flex-direction: column; gap: .6rem; }
}

/* ============================================================
   CONCEPT
   ============================================================ */
.concept {
  background: linear-gradient(180deg, var(--sky-050) 0%, #ffffff 100%);
  text-align: center;
}
.concept__poem {
  font-family: var(--font-min);
  font-size: clamp(1.02rem, 2.6vw, 1.3rem);
  font-weight: 500;
  letter-spacing: .12em;
  line-height: 2.5;
  color: var(--ink);
  display: grid;
  gap: 2.2rem;
  margin-block: 3rem 3.5rem;
}
.concept__poem-last { font-weight: 700; color: var(--navy-700); }

.concept__duo {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 3.5rem;
}
.concept__orb {
  width: clamp(130px, 24vw, 190px);
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-en);
  font-weight: 800;
  letter-spacing: .18em;
  font-size: clamp(.75rem, 1.6vw, .95rem);
  line-height: 1.7;
}
.concept__orb--sky {
  background: radial-gradient(circle at 32% 28%, #ffffff 0%, var(--sky-300) 38%, var(--sky-500) 100%);
  color: var(--navy-800);
  box-shadow: 0 14px 44px rgba(93, 180, 238, .45);
  margin-right: -22px;
  z-index: 1;
}
.concept__orb--deep {
  background: radial-gradient(circle at 34% 30%, var(--blue-600) 0%, var(--deep-800) 55%, var(--abyss) 100%);
  color: var(--cyan);
  box-shadow: 0 14px 44px rgba(4, 18, 48, .5);
  margin-left: -22px;
}

.concept__why {
  max-width: 680px;
  margin-inline: auto;
  background: var(--sky-050);
  border: 1px solid var(--sky-200);
  border-radius: var(--radius);
  padding: 2rem clamp(1.4rem, 4vw, 2.6rem);
  text-align: left;
}
.concept__why h3 {
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: .1em;
  color: var(--navy-700);
  margin-bottom: .7rem;
}
.concept__why p { font-size: .95rem; color: var(--ink-soft); }

.bluewords { margin-top: 3.2rem; }
.bluewords__q {
  font-family: var(--font-en);
  font-weight: 700;
  letter-spacing: .3em;
  font-size: .85rem;
  color: var(--ink-soft);
  margin-bottom: 1.4rem;
}
.bluewords__q b { color: var(--blue-500); font-weight: 800; }
.bluewords__cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .55rem .6rem;
  max-width: 720px;
  margin-inline: auto;
}
.bluewords__cloud li {
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--blue-700);
  background: var(--sky-100);
  border: 1px solid var(--sky-300);
  padding: .35em 1.1em;
  border-radius: 999px;
}
.bluewords__cloud li:nth-child(3n) { background: #fff; }
.bluewords__cloud li:nth-child(4n) { border-color: var(--sky-400); color: var(--blue-600); }

/* ============================================================
   TWO WORLDS
   ============================================================ */
.worlds { background: linear-gradient(180deg, #ffffff 0%, var(--sky-100) 100%); text-align: center; }
.worlds__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.4rem;
  margin-top: 2.6rem;
  text-align: left;
}
.world-card {
  border-radius: calc(var(--radius) + 6px);
  padding: clamp(1.8rem, 4vw, 2.6rem);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: .55rem;
  min-height: 300px;
  transition: transform .3s ease, box-shadow .3s ease;
  position: relative;
  overflow: hidden;
}
.world-card:hover { transform: translateY(-6px); }
.world-card__area {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: .72rem;
  letter-spacing: .3em;
}
.world-card__name {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  letter-spacing: .06em;
  line-height: 1.05;
}
.world-card__sub {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .24em;
}
.world-card__desc { font-size: .93rem; margin-top: .5rem; }
.world-card__link {
  margin-top: auto;
  padding-top: 1.2rem;
  font-weight: 900;
  font-size: .88rem;
  letter-spacing: .12em;
}

.world-card--sky {
  background:
    radial-gradient(90% 70% at 80% 0%, rgba(255, 255, 255, .9) 0%, rgba(255, 255, 255, 0) 60%),
    linear-gradient(160deg, var(--sky-200) 0%, var(--sky-400) 100%);
  color: var(--navy-800);
  box-shadow: 0 16px 40px rgba(93, 180, 238, .35);
}
.world-card--sky .world-card__area { color: var(--blue-600); }
.world-card--sky .world-card__link { color: var(--blue-700); }

.world-card--deep {
  background:
    radial-gradient(90% 70% at 20% 100%, rgba(85, 224, 255, .22) 0%, rgba(85, 224, 255, 0) 60%),
    linear-gradient(160deg, var(--navy-800) 0%, var(--abyss) 100%);
  color: var(--foam);
  box-shadow: 0 16px 40px rgba(4, 18, 48, .45);
}
.world-card--deep .world-card__area { color: var(--cyan); }
.world-card--deep .world-card__link { color: var(--cyan); }

/* ============================================================
   PARK — Sky Blue
   ============================================================ */
.park {
  background: linear-gradient(180deg, var(--sky-100) 0%, var(--sky-300) 100%);
  text-align: center;
}
.park__venue-tag {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: .78rem;
  letter-spacing: .34em;
  color: var(--blue-600);
}
.park__title {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: clamp(3rem, 9vw, 5.5rem);
  letter-spacing: .08em;
  color: var(--navy-800);
  line-height: 1.05;
  margin-top: .4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.park__title-badge {
  font-family: var(--font-ja);
  font-size: clamp(.8rem, 2vw, 1rem);
  letter-spacing: .15em;
  background: #fff;
  color: var(--blue-600);
  border-radius: 999px;
  padding: .45em 1.4em;
  box-shadow: var(--shadow-card);
  vertical-align: middle;
}
.park__theme {
  font-family: var(--font-min);
  font-weight: 600;
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  letter-spacing: .2em;
  color: var(--navy-700);
  margin-top: .8rem;
}
.park__lead {
  max-width: 640px;
  margin: 2.2rem auto 0;
  display: grid;
  gap: 1rem;
  font-size: .98rem;
  color: var(--ink);
}
.park__lead strong { color: var(--blue-700); font-weight: 900; }

.park__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.2rem;
  margin-top: 3rem;
  text-align: left;
}
.pcard {
  background: rgba(255, 255, 255, .92);
  border-radius: var(--radius);
  padding: 1.8rem 1.6rem;
  box-shadow: var(--shadow-card);
  transition: transform .3s ease, box-shadow .3s ease;
}
.pcard:hover { transform: translateY(-5px); box-shadow: var(--shadow-soft); }
.pcard__icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sky-400), var(--blue-600));
  display: grid;
  place-items: center;
  margin-bottom: 1rem;
  box-shadow: 0 6px 16px rgba(26, 124, 196, .35);
}
.pcard__icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: #fff;
  stroke-width: 1.7;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.pcard h3 {
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: .06em;
  color: var(--navy-800);
  margin-bottom: .5rem;
}
.pcard p { font-size: .88rem; color: var(--ink-soft); }

.oneblue {
  margin-top: 3rem;
  background: linear-gradient(135deg, rgba(255, 255, 255, .95), rgba(234, 246, 255, .9));
  border-radius: calc(var(--radius) + 6px);
  padding: 2.2rem clamp(1.4rem, 4vw, 3rem);
  box-shadow: var(--shadow-soft);
}
.oneblue__title {
  font-weight: 900;
  font-size: clamp(1.1rem, 3vw, 1.4rem);
  letter-spacing: .18em;
  color: var(--blue-600);
}
.oneblue__text { margin-top: .6rem; font-size: .95rem; }
.oneblue__tags {
  margin-top: 1rem;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: .5rem;
}
.oneblue__tags span {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: .8rem;
  color: #fff;
  background: var(--blue-500);
  border-radius: 999px;
  padding: .3em 1em;
  letter-spacing: .04em;
}

/* ============================================================
   DIVE — 空から深海への遷移
   ============================================================ */
.dive {
  position: relative;
  min-height: 68vh;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: linear-gradient(180deg,
    var(--sky-300) 0%,
    var(--sky-500) 18%,
    var(--blue-600) 44%,
    var(--navy-800) 72%,
    var(--deep-800) 100%);
}
.dive__copy {
  font-family: var(--font-min);
  font-size: clamp(1.15rem, 3.4vw, 1.7rem);
  font-weight: 600;
  letter-spacing: .22em;
  line-height: 2.4;
  color: var(--foam);
  text-align: center;
  text-shadow: 0 4px 30px rgba(4, 18, 48, .6);
  position: relative;
  z-index: 2;
  padding: 4rem 1.5rem;
}
.dive__bubbles { position: absolute; inset: 0; }
.dive__bubbles span {
  position: absolute;
  bottom: -60px;
  border: 1.5px solid rgba(190, 235, 255, .5);
  background: radial-gradient(circle at 32% 30%, rgba(255, 255, 255, .35), rgba(255, 255, 255, .02));
  border-radius: 50%;
  animation: rise linear infinite;
}
.dive__bubbles span:nth-child(1)  { left: 6%;  width: 18px; height: 18px; animation-duration: 9s; }
.dive__bubbles span:nth-child(2)  { left: 14%; width: 10px; height: 10px; animation-duration: 12s; animation-delay: 2s; }
.dive__bubbles span:nth-child(3)  { left: 24%; width: 26px; height: 26px; animation-duration: 10s; animation-delay: 1s; }
.dive__bubbles span:nth-child(4)  { left: 33%; width: 12px; height: 12px; animation-duration: 14s; animation-delay: 4s; }
.dive__bubbles span:nth-child(5)  { left: 42%; width: 20px; height: 20px; animation-duration: 11s; animation-delay: .5s; }
.dive__bubbles span:nth-child(6)  { left: 52%; width: 9px;  height: 9px;  animation-duration: 13s; animation-delay: 3s; }
.dive__bubbles span:nth-child(7)  { left: 60%; width: 24px; height: 24px; animation-duration: 9.5s; animation-delay: 1.5s; }
.dive__bubbles span:nth-child(8)  { left: 68%; width: 14px; height: 14px; animation-duration: 12.5s; animation-delay: 5s; }
.dive__bubbles span:nth-child(9)  { left: 76%; width: 30px; height: 30px; animation-duration: 10.5s; animation-delay: 2.5s; }
.dive__bubbles span:nth-child(10) { left: 84%; width: 11px; height: 11px; animation-duration: 13.5s; animation-delay: .8s; }
.dive__bubbles span:nth-child(11) { left: 91%; width: 20px; height: 20px; animation-duration: 11.5s; animation-delay: 3.6s; }
.dive__bubbles span:nth-child(12) { left: 48%; width: 15px; height: 15px; animation-duration: 15s; animation-delay: 6s; }
@keyframes rise {
  0%   { transform: translateY(0) translateX(0); opacity: 0; }
  8%   { opacity: 1; }
  92%  { opacity: .9; }
  100% { transform: translateY(-78vh) translateX(18px); opacity: 0; }
}

/* ============================================================
   DISCOVERY — Deep Blue
   ============================================================ */
.discovery {
  background: linear-gradient(180deg, var(--deep-800) 0%, var(--deep-900) 100%);
  color: var(--foam);
  text-align: center;
  overflow: hidden;
}
.discovery__glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(46% 30% at 50% 12%, rgba(85, 224, 255, .14) 0%, transparent 70%),
    radial-gradient(30% 24% at 16% 60%, rgba(45, 156, 219, .12) 0%, transparent 70%),
    radial-gradient(30% 24% at 86% 80%, rgba(85, 224, 255, .08) 0%, transparent 70%);
  pointer-events: none;
}
.discovery .container { position: relative; z-index: 1; }
.discovery__venue-tag {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: .78rem;
  letter-spacing: .34em;
  color: var(--cyan);
}
.discovery__title {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: clamp(2.5rem, 8.5vw, 5.5rem);
  letter-spacing: .08em;
  line-height: 1.05;
  margin-top: .4rem;
  color: var(--foam);
  text-shadow: 0 0 60px rgba(85, 224, 255, .35);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.discovery__title-badge {
  font-family: var(--font-ja);
  font-size: clamp(.72rem, 2vw, .9rem);
  letter-spacing: .15em;
  color: var(--cyan);
  border: 1px solid var(--cyan-soft);
  border-radius: 999px;
  padding: .45em 1.3em;
  text-shadow: none;
}
.discovery__theme {
  font-family: var(--font-min);
  font-weight: 600;
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  letter-spacing: .2em;
  color: var(--sky-400);
  margin-top: .8rem;
}
.discovery__lead {
  max-width: 640px;
  margin: 2.2rem auto 0;
  display: grid;
  gap: 1.1rem;
  font-size: .98rem;
  color: rgba(234, 247, 255, .85);
}
.discovery__lead-poem {
  font-family: var(--font-min);
  font-size: clamp(1.15rem, 3vw, 1.5rem);
  font-weight: 600;
  letter-spacing: .22em;
  color: var(--cyan);
}

.discovery__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.2rem;
  margin-top: 3rem;
  text-align: left;
}
.dcard {
  background: rgba(9, 30, 66, .55);
  border: 1px solid rgba(85, 224, 255, .18);
  border-radius: var(--radius);
  padding: 1.9rem 1.7rem;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.dcard:hover {
  transform: translateY(-5px);
  border-color: rgba(85, 224, 255, .5);
  box-shadow: 0 0 40px rgba(85, 224, 255, .12);
}
.dcard__num {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: .95rem;
  letter-spacing: .2em;
  color: var(--cyan);
  margin-bottom: .8rem;
}
.dcard h3 {
  font-size: 1.12rem;
  font-weight: 900;
  letter-spacing: .06em;
  color: var(--foam);
}
.dcard__en {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: .62rem;
  letter-spacing: .32em;
  color: var(--sky-500);
  margin: .3rem 0 .8rem;
}
.dcard p:last-child { font-size: .88rem; color: rgba(234, 247, 255, .75); }

.ticket {
  margin-top: 3.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  background: linear-gradient(135deg, rgba(85, 224, 255, .1), rgba(45, 156, 219, .06));
  border: 1px solid rgba(85, 224, 255, .3);
  border-radius: calc(var(--radius) + 6px);
  padding: clamp(1.8rem, 4vw, 2.6rem) clamp(1.5rem, 4vw, 3rem);
  text-align: left;
}
.ticket__label {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: .72rem;
  letter-spacing: .4em;
  color: var(--cyan);
}
.ticket__price {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  color: var(--foam);
  line-height: 1.2;
}
.ticket__price small { font-size: .32em; font-family: var(--font-ja); font-weight: 700; color: var(--sky-400); margin-left: .5em; }
.ticket__notes { margin-top: .6rem; display: grid; gap: .2rem; }
.ticket__notes li {
  font-size: .85rem;
  color: rgba(234, 247, 255, .8);
  padding-left: 1.2em;
  position: relative;
}
.ticket__notes li::before {
  content: "◆";
  position: absolute;
  left: 0;
  font-size: .6em;
  top: .55em;
  color: var(--cyan);
}
.ticket__right { display: grid; gap: .6rem; justify-items: center; }
.ticket__hint { font-size: .75rem; color: rgba(234, 247, 255, .6); }

/* ============================================================
   ARTISTS
   ============================================================ */
.artists {
  background: linear-gradient(180deg, var(--deep-900) 0%, var(--navy-800) 100%);
  color: var(--foam);
}
.artists__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.4rem;
  margin-top: 2.6rem;
}
.acard {
  background: rgba(9, 30, 66, .5);
  border: 1px solid rgba(143, 212, 255, .16);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .3s ease, border-color .3s ease;
}
.acard:hover { transform: translateY(-5px); border-color: rgba(85, 224, 255, .45); }
.acard__visual {
  height: 150px;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}
.acard__visual span {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 2.1rem;
  letter-spacing: .3em;
  text-indent: .3em;
  color: rgba(255, 255, 255, .85);
  text-transform: uppercase;
  text-shadow: 0 2px 24px rgba(4, 18, 48, .5);
}
.acard__visual--vivi {
  background:
    repeating-radial-gradient(circle at 50% 120%, rgba(255, 255, 255, .12) 0 2px, transparent 2px 26px),
    linear-gradient(160deg, var(--blue-500), var(--deep-800));
}
.acard__visual--shimura {
  background:
    radial-gradient(24px 24px at 22% 36%, rgba(190, 235, 255, .5) 0 40%, transparent 55%),
    radial-gradient(18px 18px at 74% 26%, rgba(190, 235, 255, .4) 0 40%, transparent 55%),
    radial-gradient(30px 30px at 60% 72%, rgba(190, 235, 255, .35) 0 40%, transparent 55%),
    radial-gradient(14px 14px at 38% 78%, rgba(190, 235, 255, .45) 0 40%, transparent 55%),
    linear-gradient(200deg, var(--navy-700), var(--deep-900));
}
.acard__visual--mori {
  background:
    repeating-linear-gradient(90deg, transparent 0 26px, rgba(85, 224, 255, .16) 26px 28px),
    linear-gradient(160deg, var(--navy-800), var(--abyss));
}
.acard__body { padding: 1.6rem 1.6rem 1.8rem; display: flex; flex-direction: column; gap: .55rem; flex: 1; }
.acard__role {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--cyan);
}
.acard__name { font-size: 1.3rem; font-weight: 900; letter-spacing: .08em; color: #fff; }
.acard__name small { font-family: var(--font-en); font-weight: 600; font-size: .68em; color: var(--sky-400); margin-left: .3em; }
.acard__bio { font-size: .85rem; color: rgba(234, 247, 255, .75); }
.acard__link {
  margin-top: auto;
  padding-top: .8rem;
  font-size: .82rem;
  font-weight: 700;
  color: var(--cyan);
  text-decoration: none;
  letter-spacing: .06em;
}
.acard__link:hover { text-decoration: underline; }

/* ============================================================
   SURFACE — 深海から浮上
   ============================================================ */
.surface {
  min-height: 42vh;
  display: grid;
  place-items: center;
  background: linear-gradient(180deg,
    var(--navy-800) 0%,
    var(--blue-600) 38%,
    var(--sky-500) 68%,
    var(--sky-100) 100%);
}
.surface__copy {
  font-family: var(--font-min);
  font-size: clamp(1.1rem, 3vw, 1.55rem);
  font-weight: 600;
  letter-spacing: .24em;
  color: #fff;
  text-shadow: 0 4px 26px rgba(8, 42, 94, .55);
  padding: 3rem 1.5rem;
  text-align: center;
}

/* ============================================================
   ACCESS / OVERVIEW
   ============================================================ */
.access { background: var(--sky-100); }
.access__grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 2rem;
  margin-top: 2.4rem;
  align-items: start;
}
@media (max-width: 860px) { .access__grid { grid-template-columns: 1fr; } }

.ovw {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.ovw__row {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 1rem;
  padding: 1.05rem 1.4rem;
  border-bottom: 1px solid var(--sky-100);
  font-size: .92rem;
}
.ovw__row:last-child { border-bottom: 0; }
.ovw dt {
  font-weight: 900;
  color: var(--blue-600);
  letter-spacing: .1em;
}
.ovw dd small { color: var(--ink-soft); font-size: .86em; }
.ovw dd strong { color: var(--navy-800); }

.access__map {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

/* 地図カード（クリックでGoogle Mapを開く） */
.mapcard {
  position: relative;
  display: grid;
  place-items: center;
  align-content: center;
  gap: .4rem;
  height: 300px;
  text-decoration: none;
  background:
    radial-gradient(70% 60% at 50% 46%, rgba(255, 255, 255, .75) 0%, rgba(255, 255, 255, 0) 70%),
    linear-gradient(180deg, var(--sky-200) 0%, var(--sky-300) 100%);
  overflow: hidden;
  transition: filter .3s ease;
}
.mapcard:hover { filter: brightness(1.04); }
.mapcard__grid {
  position: absolute;
  inset: -20px;
  background-image:
    linear-gradient(rgba(26, 124, 196, .12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 124, 196, .12) 1px, transparent 1px);
  background-size: 44px 44px;
  transform: rotate(-4deg);
}
.mapcard__pin {
  position: relative;
  width: 58px;
  height: 58px;
  filter: drop-shadow(0 8px 16px rgba(13, 91, 161, .4));
  animation: pinbounce 2.6s ease-in-out infinite;
}
@keyframes pinbounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}
.mapcard__label {
  position: relative;
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: .08em;
  color: var(--navy-800);
  text-align: center;
}
.mapcard__label small {
  display: block;
  font-family: var(--font-ja);
  font-weight: 700;
  font-size: .68rem;
  letter-spacing: .2em;
  color: var(--blue-700);
  margin-top: .2rem;
}
.mapcard__open {
  position: relative;
  margin-top: .6rem;
  font-size: .8rem;
  font-weight: 900;
  letter-spacing: .08em;
  color: #fff;
  background: linear-gradient(135deg, var(--blue-500), var(--navy-700));
  border-radius: 999px;
  padding: .55em 1.5em;
  box-shadow: 0 6px 18px rgba(13, 91, 161, .35);
}
.access__stations { padding: 1.4rem 1.6rem 1.6rem; }
.access__stations h3 {
  font-family: var(--font-en);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .34em;
  color: var(--blue-500);
  margin-bottom: .6rem;
}
.access__stations ul { display: grid; gap: .25rem; }
.access__stations li {
  font-size: .88rem;
  font-weight: 700;
  padding-left: 1.3em;
  position: relative;
}
.access__stations li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: .65em;
  height: .65em;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sky-400), var(--blue-600));
}
.access__note { margin-top: .8rem; font-size: .8rem; color: var(--ink-soft); }

/* ============================================================
   ENTRY（出展・協賛）
   ============================================================ */
.entry { background: linear-gradient(180deg, var(--sky-100) 0%, #ffffff 30%, var(--sky-050) 100%); text-align: center; }
.entry__lead { font-size: .95rem; color: var(--ink-soft); }
.entry__specs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.1rem;
}
.entry__specs li {
  background: #fff;
  border: 1px solid var(--sky-300);
  border-radius: 999px;
  padding: .45em 1.3em;
  font-size: .82rem;
  font-weight: 700;
  color: var(--navy-800);
}
.entry__specs b {
  color: var(--blue-500);
  font-size: .82em;
  letter-spacing: .08em;
  margin-right: .7em;
}

.entry__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.1rem;
  margin-top: 2.4rem;
  text-align: left;
}
.ecard {
  background: #fff;
  border: 2px solid var(--sky-200);
  border-radius: var(--radius);
  padding: 1.7rem 1.5rem;
  transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;
}
.ecard:hover {
  border-color: var(--sky-500);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}
.ecard h3 {
  font-size: 1.05rem;
  font-weight: 900;
  line-height: 1.5;
  letter-spacing: .08em;
  color: var(--navy-800);
  margin-bottom: .6rem;
}
.ecard__free {
  display: inline-block;
  font-size: .68rem;
  letter-spacing: .12em;
  background: var(--blue-500);
  color: #fff;
  border-radius: 999px;
  padding: .2em .9em;
  margin-left: .6em;
  vertical-align: .2em;
}
.ecard p { font-size: .85rem; color: var(--ink-soft); }

.entry__steps {
  display: flex;
  justify-content: center;
  gap: .9rem;
  margin-top: 2.6rem;
  flex-wrap: wrap;
  counter-reset: step;
}
.entry__steps li {
  background: var(--sky-100);
  border-radius: 999px;
  padding: .7em 1.6em;
  font-size: .85rem;
  display: flex;
  align-items: center;
  gap: .7em;
}
.entry__steps b {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--blue-600);
}

.entry__cta { margin-top: 2.4rem; }
.entry__cta-note { margin-top: .8rem; font-size: .78rem; color: var(--ink-soft); }

.sponsor {
  margin-top: 3.4rem;
  background: linear-gradient(135deg, var(--navy-800), var(--deep-900));
  border-radius: calc(var(--radius) + 6px);
  padding: clamp(1.8rem, 4vw, 2.6rem) clamp(1.5rem, 4vw, 3rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  text-align: left;
  box-shadow: 0 16px 44px rgba(4, 18, 48, .35);
}
.sponsor__text h3 {
  color: #fff;
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: .1em;
  margin-bottom: .5rem;
}
.sponsor__text p { color: rgba(234, 247, 255, .8); font-size: .88rem; max-width: 560px; }

/* ============================================================
   FAQ
   ============================================================ */
.faq { background: var(--sky-050); }
.faq .section__eyebrow, .faq .section__title { text-align: center; }
.faq__item {
  background: #fff;
  border-radius: 14px;
  box-shadow: var(--shadow-card);
  margin-top: .9rem;
  overflow: hidden;
}
.faq__item summary {
  cursor: pointer;
  list-style: none;
  padding: 1.15rem 3.2rem 1.15rem 1.5rem;
  font-weight: 900;
  font-size: .95rem;
  color: var(--navy-800);
  position: relative;
  transition: color .2s ease;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+";
  position: absolute;
  right: 1.3rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 1.5rem;
  color: var(--blue-500);
  transition: transform .3s ease;
}
.faq__item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq__item summary:hover { color: var(--blue-600); }
.faq__item p {
  padding: 0 1.5rem 1.3rem;
  font-size: .9rem;
  color: var(--ink-soft);
}

/* ============================================================
   VISION
   ============================================================ */
.vision {
  background: linear-gradient(180deg, var(--navy-800) 0%, var(--deep-900) 55%, var(--abyss) 100%);
  color: var(--foam);
  text-align: center;
  overflow: hidden;
}
.vision__stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 24%, rgba(255, 255, 255, .8) 50%, transparent 51%),
    radial-gradient(1px 1px at 28% 62%, rgba(190, 235, 255, .7) 50%, transparent 51%),
    radial-gradient(2px 2px at 44% 18%, rgba(255, 255, 255, .6) 50%, transparent 51%),
    radial-gradient(1px 1px at 58% 44%, rgba(190, 235, 255, .8) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 72% 28%, rgba(255, 255, 255, .7) 50%, transparent 51%),
    radial-gradient(1px 1px at 86% 56%, rgba(190, 235, 255, .6) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 20% 82%, rgba(255, 255, 255, .5) 50%, transparent 51%),
    radial-gradient(1px 1px at 66% 78%, rgba(190, 235, 255, .7) 50%, transparent 51%),
    radial-gradient(2px 2px at 92% 12%, rgba(255, 255, 255, .55) 50%, transparent 51%);
  animation: twinkle 6s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes twinkle { from { opacity: .5; } to { opacity: 1; } }
.vision .container { position: relative; z-index: 1; }
.vision__title {
  font-size: clamp(1.5rem, 4vw, 2.3rem);
  font-weight: 900;
  letter-spacing: .14em;
  color: #fff;
  margin-bottom: 2rem;
}
.vision__body {
  font-family: var(--font-min);
  font-size: clamp(.95rem, 2.3vw, 1.1rem);
  letter-spacing: .12em;
  line-height: 2.6;
  display: grid;
  gap: 1.8rem;
  color: rgba(234, 247, 255, .9);
}
.vision__expo {
  font-size: clamp(1.2rem, 3.4vw, 1.7rem);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: .18em;
  text-shadow: 0 0 40px rgba(85, 224, 255, .4);
}
.vision__expo small {
  display: block;
  margin-top: .6rem;
  font-size: .55em;
  color: var(--sky-400);
  letter-spacing: .22em;
}
.vision__cta { margin-top: 2.8rem; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--abyss);
  color: rgba(234, 247, 255, .85);
  padding: 3.5rem 0 0;
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 2.5rem;
  flex-wrap: wrap;
  padding-bottom: 2.5rem;
}
.footer__mark { width: 44px; height: 44px; margin-bottom: .9rem; }
.footer__logo {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: .14em;
  color: #fff;
}
.footer__logo em { color: var(--cyan); }
.footer__tag {
  font-family: var(--font-min);
  font-size: .82rem;
  letter-spacing: .14em;
  margin-top: .5rem;
  color: var(--sky-400);
}
.footer__info { font-size: .88rem; display: grid; gap: 1rem; }
.footer__info a { color: var(--cyan); }
.footer__tags { display: flex; gap: .6rem; flex-wrap: wrap; }
.footer__tags span {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: .75rem;
  color: var(--sky-400);
  border: 1px solid rgba(143, 212, 255, .3);
  border-radius: 999px;
  padding: .2em .9em;
}
.footer__copy {
  border-top: 1px solid rgba(143, 212, 255, .14);
  text-align: center;
  font-family: var(--font-en);
  font-size: .72rem;
  letter-spacing: .12em;
  color: rgba(234, 247, 255, .45);
  padding: 1.3rem 1rem;
}

/* ============================================================
   DEPTH METER（遊び：スクロール水深計）
   ============================================================ */
.depth {
  position: fixed;
  left: 1.2rem;
  bottom: 1.2rem;
  z-index: 90;
  font-family: var(--font-en);
  display: grid;
  gap: .1rem;
  padding: .55rem .9rem;
  border-radius: 12px;
  background: rgba(4, 18, 48, .55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(85, 224, 255, .25);
  pointer-events: none;
}
.depth__zone {
  font-size: .55rem;
  font-weight: 800;
  letter-spacing: .34em;
  color: var(--cyan);
}
.depth__value {
  font-size: .85rem;
  font-weight: 700;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
@media (max-width: 900px) { .depth { display: none; } }

/* ============================================================
   Reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .cloud, .dive__bubbles span, .hero__scroll-line::after, .vision__stars { animation: none !important; }
  .btn, .pcard, .dcard, .acard, .ecard, .world-card { transition: none; }
}