:root {
  --navy: #061426;
  --navy-2: #0a1c36;
  --space: #0b3d91;
  --cyan: #38bdf8;
  --cyan-2: #7dd3fc;
  --ink: #f7fbff;
  --muted: rgba(247, 251, 255, 0.74);
  --line: rgba(125, 211, 252, 0.28);
  --header: 76px;
  --wrap: 1120px;
  --journey: 0;
  --academy: #0c72b1;
  --beacon: #a43877;
  --community: #ef7ea4;
  --design: #f1ab29;
  --experience: #357141;
  color-scheme: dark;
}

.tone-academy { --tone: var(--academy); --tone-ink: #9ed4f6; --tone-on: #fff; }
.tone-beacon { --tone: var(--beacon); --tone-ink: #f3b7d4; --tone-on: #fff; }
.tone-community { --tone: var(--community); --tone-ink: #ffd3e3; --tone-on: #3a1020; }
.tone-design { --tone: var(--design); --tone-ink: #ffe3a3; --tone-on: #2a1c00; }
.tone-experience { --tone: var(--experience); --tone-ink: #c6ebc0; --tone-on: #fff; }

*,
*::before,
*::after { box-sizing: border-box; }

[hidden] { display: none !important; }

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

body {
  margin: 0;
  background: var(--navy);
  color: var(--ink);
  font-family: "Noto Sans JP", sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; }

button, input, select, textarea { font: inherit; color: inherit; }

h1, h2, h3, h4 { line-height: 1.35; font-weight: 700; margin: 0; }

p { margin: 0; }

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

::selection { background: var(--cyan); color: var(--navy); }

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 80;
  background: #fff;
  color: var(--navy);
  padding: 0.6rem 1rem;
  border-radius: 0.4rem;
  font-weight: 700;
}

.skip:focus { top: 1rem; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.cosmos,
#stars {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.cosmos {
  background:
    radial-gradient(ellipse 55% 42% at 12% calc(92% - var(--journey) * 55%), rgba(11, 61, 145, 0.55), transparent 62%),
    radial-gradient(ellipse 28% 22% at 88% calc(6% + var(--journey) * 28%), rgba(232, 240, 252, 0.16), transparent 70%),
    radial-gradient(ellipse 40% 30% at 70% 40%, rgba(14, 80, 160, 0.18), transparent 70%),
    linear-gradient(185deg, #08203f 0%, #061426 46%, #040c18 100%);
}

.site-header,
main,
.site-footer { position: relative; z-index: 1; }

.wrap {
  width: min(var(--wrap), calc(100% - 2.5rem));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: var(--header);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 1.15rem 0 1rem;
  background: linear-gradient(180deg, rgba(6, 20, 38, 0.78), rgba(6, 20, 38, 0));
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.is-solid {
  background: rgba(6, 20, 38, 0.92);
  backdrop-filter: blur(16px);
  box-shadow: inset 0 -1px 0 rgba(56, 189, 248, 0.2);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  min-width: 0;
}

.brand img { width: 52px; height: auto; }
.brand-text { min-width: 0; }
.brand-ja, .brand-en { white-space: nowrap; }

.brand-en {
  display: none;
  font-family: Montserrat, sans-serif;
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  color: var(--cyan-2);
}

.brand-ja {
  display: block;
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.06em;
}
.brand-ssa {
  margin-left: 0.4rem;
  font-family: Montserrat, sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--cyan-2);
}

.nav-toggle {
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  color: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
}

.bars,
.bars::before,
.bars::after {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  position: relative;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.bars::before,
.bars::after {
  content: "";
  position: absolute;
  left: 0;
}

.bars::before { top: -7px; }
.bars::after { top: 7px; }

.nav-toggle[aria-expanded="true"] .bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .bars::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bars::after { transform: translateY(-7px) rotate(-45deg); }

.site-nav {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: #061426;
  padding: 6.2rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  transform: translateX(100%);
  transition: transform 0.35s ease;
  overflow: auto;
}

.site-nav.is-open { transform: none; }

.site-nav a {
  text-decoration: none;
  padding: 0.85rem 0.2rem;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-nav a[aria-current="page"] { color: var(--cyan-2); }

.nav-join {
  margin-top: 1rem;
  text-align: center;
  border: 0 !important;
  border-radius: 999px;
  background: linear-gradient(100deg, #0b3d91, #0c4f86 70%, #0e6f8f);
  color: #fff !important;
  padding: 0.9rem 1rem !important;
}

body.nav-open { overflow: hidden; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 48px;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(1px); }

.btn-primary {
  color: #f7fbff;
  background: linear-gradient(100deg, #0b3d91, #0c4f86 68%, #0e6f8f);
  box-shadow: 0 10px 28px rgba(12, 79, 134, 0.38), inset 0 0 0 1px rgba(125, 211, 252, 0.28);
}

.btn-ghost {
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.32);
}

.btn-ghost:hover { background: rgba(255, 255, 255, 0.1); }

.btn-lg { min-height: 56px; padding: 0.95rem 1.7rem; font-size: 1.05rem; }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0 0 0.75rem;
  font-family: Montserrat, sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan-2);
}

.eyebrow::before {
  content: "";
  width: 1.8rem;
  height: 1px;
  background: var(--cyan);
}

.lead {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.9;
}

.text-link { color: var(--cyan-2); font-weight: 700; }
.actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.2rem; }

.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--header) + 1.5rem) 0 26vh;
  overflow: hidden;
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: min(40rem, calc(100% - 2.5rem));
  margin-inline: auto;
  text-align: center;
}

.hero .eyebrow { justify-content: center; }

.hero-logo { width: 108px; height: auto; margin: 0 auto 0.8rem; filter: drop-shadow(0 10px 24px rgba(0, 0, 0, 0.35)); }

.hero h1 {
  font-family: Montserrat, "Noto Sans JP", sans-serif;
  font-size: clamp(2.35rem, 8vw, 4.8rem);
  line-height: 0.92;
  letter-spacing: -0.035em;
  text-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

.tagline {
  margin-top: 1rem;
  font-family: Montserrat, sans-serif;
  font-weight: 500;
  font-size: clamp(1.15rem, 2.5vw, 1.7rem);
  letter-spacing: 0.12em;
  color: var(--cyan-2);
}

.hero-jp {
  margin-top: 0.45rem;
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  font-weight: 700;
  letter-spacing: 0.16em;
}
.hero-aka {
  margin: 0.35rem 0 0;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
  justify-content: center;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(6, 20, 38, 0.35), transparent 16%),
    radial-gradient(ellipse 46% 58% at 24% 38%, rgba(6, 20, 38, 0.42), transparent 72%);
}

.hero-art { position: absolute; inset: 0; z-index: 0; pointer-events: none; }

.hero-svg { width: 100%; height: 100%; display: none; }

.moon-orb {
  position: absolute;
  top: 13%;
  right: 8%;
  width: 68px;
  aspect-ratio: 1;
  background: url("assets/moon.png") center / contain no-repeat;
}

.earth-orb {
  position: absolute;
  left: 50%;
  bottom: -118vw;
  width: 150vw;
  aspect-ratio: 1;
  transform: translateX(-50%);
  border-radius: 50%;
  background: url("assets/earth.png") center / contain no-repeat;
  box-shadow: 0 -30px 80px rgba(56, 189, 248, 0.28);
}

.radio-mobile {
  position: absolute;
  left: 50%;
  bottom: 11vh;
  width: 140px;
  height: 140px;
  transform: translateX(-50%);
}

.radio-mobile span {
  position: absolute;
  inset: 20%;
  border: 1px solid rgba(56, 189, 248, 0.7);
  border-radius: 50%;
  animation: ping 3.4s ease-out infinite;
}

.radio-mobile span:nth-child(2) { animation-delay: 1.1s; }
.radio-mobile span:nth-child(3) { animation-delay: 2.2s; }

.scroll-cue {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: 1.2rem;
  transform: translateX(-50%);
  display: grid;
  justify-items: center;
  gap: 0.25rem;
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  font-family: Montserrat, sans-serif;
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.scroll-cue i {
  width: 12px;
  height: 12px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  animation: bob 1.6s ease-in-out infinite;
}

.journey {
  position: fixed;
  z-index: 5;
  right: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  display: none;
  flex-direction: column;
  gap: 0.9rem;
}

.journey a {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.55rem;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.journey a::after {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid var(--cyan);
  background: transparent;
  box-shadow: 0 14px 0 -7px rgba(56, 189, 248, 0.0);
}

.journey a[aria-current="true"] { color: #fff; }
.journey a[aria-current="true"]::after { background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }

.section { padding: 5.2rem 0; }
.band { padding: 1.25rem 0 0.25rem; }

.section-head { max-width: 42rem; margin-bottom: 2rem; }
.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.45rem); margin-bottom: 0.8rem; }

.signal {
  display: grid;
  gap: 0.8rem;
  position: relative;
  z-index: 2;
}

.signal article {
  padding: 1.1rem 1.15rem;
  border-radius: 1rem;
  background: rgba(6, 20, 38, 0.72);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.signal span {
  display: block;
  font-family: Montserrat, sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--cyan-2);
  margin-bottom: 0.25rem;
}

.panel {
  background: linear-gradient(180deg, rgba(6, 20, 38, 0.35), rgba(6, 20, 38, 0.78));
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.split {
  display: grid;
  gap: 1.6rem;
  align-items: center;
}

.quote {
  margin: 0;
  padding: 1.4rem 1.3rem;
  border-left: 3px solid var(--cyan);
  border-radius: 0 1rem 1rem 0;
  background: rgba(11, 61, 145, 0.28);
  font-size: 1.12rem;
  line-height: 1.85;
}

.chips, .chain { list-style: none; padding: 0; margin: 1.2rem 0 0; }
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.chips li {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  background: rgba(11, 61, 145, 0.25);
}

.activity-grid {
  display: grid;
  gap: 1rem;
}

.activity-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  min-height: 100%;
  padding: 1.3rem 1.25rem 1.35rem;
  text-decoration: none;
  border-radius: 1.25rem;
  background:
    radial-gradient(circle at 90% 0%, rgba(56, 189, 248, 0.16), transparent 42%),
    linear-gradient(180deg, rgba(12, 42, 88, 0.82), rgba(6, 18, 38, 0.92));
  border: 1px solid rgba(56, 189, 248, 0.28);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.22);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.activity-card:hover {
  transform: translateY(-6px);
  border-color: rgba(125, 211, 252, 0.75);
}

.activity-no {
  font-family: Montserrat, sans-serif;
  color: var(--cyan);
  letter-spacing: 0.14em;
  font-size: 0.78rem;
}

.activity-en {
  font-family: Montserrat, sans-serif;
  font-size: 1.35rem;
  letter-spacing: 0.08em;
}

.activity-card[class*="tone-"] {
  background:
    radial-gradient(circle at 100% 0%, color-mix(in srgb, var(--tone) 46%, transparent), transparent 48%),
    linear-gradient(180deg, rgba(12, 42, 88, 0.82), rgba(6, 18, 38, 0.92));
  border-color: color-mix(in srgb, var(--tone) 72%, transparent);
}
.activity-card[class*="tone-"] .activity-no,
.activity-card[class*="tone-"] .activity-en,
.activity-card[class*="tone-"] .card-icon,
.activity-card[class*="tone-"] .more { color: var(--tone-ink); }
.activity-card[class*="tone-"]:hover { border-color: var(--tone); }
.activity-card p { color: var(--muted); line-height: 1.75; }

.activity-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.35rem;
}
.activity-head h2 { margin-top: 0; }
.activity-head .eyebrow { margin-bottom: 0.15rem; }
.activity-head .eyebrow::before { display: none; }
.activity-initial {
  display: grid;
  place-items: center;
  width: 4.75rem;
  height: 4.75rem;
  border-radius: 50%;
  background: var(--tone);
  color: var(--tone-on);
  font-family: Montserrat, sans-serif;
  font-weight: 700;
  font-size: 2.7rem;
  line-height: 1;
  flex: none;
}
.activity-card .more { margin-top: auto; color: var(--cyan-2); font-weight: 700; font-size: 0.92rem; }

.card-icon { width: 36px; height: 36px; color: var(--cyan-2); }
.card-icon svg { width: 36px; height: 36px; display: block; }

.ariss-band {
  padding: 5.5rem 0;
  background:
    radial-gradient(ellipse at 78% 42%, rgba(11, 61, 145, 0.5), transparent 58%),
    linear-gradient(180deg, rgba(4, 12, 24, 0.15), rgba(6, 20, 38, 0.88));
  border-block: 1px solid rgba(56, 189, 248, 0.16);
}

.ariss-grid { display: grid; gap: 2rem; align-items: center; }

.iss-frame {
  border-radius: 1.5rem;
  border: 1px solid rgba(56, 189, 248, 0.32);
  background:
    radial-gradient(circle at 50% 120%, rgba(56, 189, 248, 0.2), transparent 46%),
    radial-gradient(circle at 50% 40%, rgba(11, 61, 145, 0.45), rgba(4, 10, 22, 0.92) 72%);
  padding: 1rem 0.6rem 0.4rem;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
}

.iss-frame svg { width: 100%; height: auto; display: block; }

.ariss-photo {
  margin: 0;
  border-radius: 1.5rem;
  overflow: hidden;
  border: 1px solid rgba(56, 189, 248, 0.32);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
}
.ariss-photo img { width: 100%; height: auto; display: block; }

.pulse { transform-box: fill-box; transform-origin: center; animation: radio 3.6s ease-out infinite; }
.pulse-2 { animation-delay: 1.2s; }
.pulse-3 { animation-delay: 2.4s; }

.card-list, .news-list { display: grid; gap: 1rem; }

.event-card {
  display: grid;
  background: rgba(7, 22, 44, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1.25rem;
  overflow: hidden;
}

.event-cover {
  min-height: 168px;
  position: relative;
}

.event-cover-photo { display: block; background: #040c18; }
.event-cover-photo img {
  display: block;
  width: 100%;
  height: 240px;
  object-fit: cover;
  object-position: center 22%;
}

.event-detail {
  display: grid;
  gap: 1.4rem;
  align-items: start;
}
.event-poster { margin: 0; }
.event-poster img {
  display: block;
  width: min(100%, 420px);
  height: auto;
  margin-inline: auto;
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.event-body { padding: 1.15rem 1.15rem 1.25rem; display: grid; gap: 0.75rem; align-content: start; }
.event-body h2, .event-body h3 { font-size: 1.22rem; }
.event-body h2 a, .event-body h3 a { text-decoration: none; }
.event-body h2 a:hover, .event-body h3 a:hover { color: var(--cyan-2); }

.cover-moon { background: radial-gradient(circle at 70% 40%, #f4f7fb, #c5d0e0 28%, transparent 29%), linear-gradient(160deg, #12315f, #061426 70%); }
.cover-radio { background: radial-gradient(circle at 30% 70%, rgba(56, 189, 248, 0.5), transparent 36%), linear-gradient(160deg, #0b3d91, #071426); }
.cover-food { background: radial-gradient(circle at 50% 80%, rgba(125, 211, 252, 0.35), transparent 40%), linear-gradient(160deg, #14532d, #062033 55%, #061426); }
.cover-cansat { background: linear-gradient(160deg, #7c3aed 0%, #0b3d91 42%, #061426 100%); }
.cover-community { background: radial-gradient(circle at 72% 28%, rgba(251, 113, 133, 0.72), transparent 34%), linear-gradient(160deg, #9f1239, #0b3d91 46%, #061426); }
.cover-report { background: radial-gradient(circle at 40% 40%, rgba(255, 244, 214, 0.85), transparent 18%), linear-gradient(160deg, #92400e, #0b3d91 50%, #061426); }

.event-group { margin-top: 2.5rem; }
.event-group h2 {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
  font-size: clamp(1.35rem, 2vw, 1.7rem);
}
.event-group-ja { color: var(--muted); font-size: 0.72em; font-weight: 500; }
.event-group .card-list { margin-top: 1rem; }
.event-joint { color: var(--cyan-2); font-size: 0.92rem; margin: 0; }

.event-group[class*="tone-"] {
  padding: 1.15rem 1.1rem 0.35rem;
  border-radius: 1.15rem;
  background: color-mix(in srgb, var(--tone) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--tone) 48%, transparent);
}
.event-group[class*="tone-"] h2 { color: var(--tone-ink); }
.event-group[class*="tone-"] .member-mark {
  background: var(--tone);
  color: var(--tone-on);
  border-color: transparent;
}
.event-card[class*="tone-"] {
  border-color: color-mix(in srgb, var(--tone) 55%, transparent);
}
.event-card[class*="tone-"] .event-cover {
  background:
    radial-gradient(circle at 74% 24%, color-mix(in srgb, var(--tone) 55%, white), transparent 30%),
    linear-gradient(165deg, var(--tone) 0%, #061426 76%);
}
.event-card[class*="tone-"] .meta dt,
.event-card[class*="tone-"] .event-joint,
.section[class*="tone-"] .meta dt,
.page-hero[class*="tone-"] .eyebrow,
.section[class*="tone-"] .eyebrow { color: var(--tone-ink); }
.section[class*="tone-"] h2 { color: var(--tone-ink); }
.page-hero[class*="tone-"] .eyebrow::before,
.section[class*="tone-"] .eyebrow::before { background: var(--tone); }
.event-card[class*="tone-"] .btn-primary,
.section[class*="tone-"] .btn-primary {
  background: var(--tone);
  color: var(--tone-on);
  box-shadow: none;
}
.section[class*="tone-"] > .wrap {
  border-left: 4px solid var(--tone);
  padding-left: 1.15rem;
}

.cover-label {
  position: absolute;
  left: 1rem;
  bottom: 0.9rem;
  font-family: Montserrat, sans-serif;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
}

.meta { display: grid; grid-template-columns: 5.5rem 1fr; gap: 0.28rem 0.8rem; margin: 0; }
.meta dt { color: var(--cyan-2); font-weight: 700; }
.meta dd { margin: 0; }

.pill {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border-radius: 999px;
  padding: 0.15rem 0.65rem;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  border: 1px solid rgba(56, 189, 248, 0.5);
  color: #e0f2fe;
}

.pill-report { border-color: rgba(253, 230, 138, 0.6); color: #fde68a; }
.event-card[class*="tone-"] .pill:not(.pill-report) {
  color: var(--tone-ink);
  border-color: color-mix(in srgb, var(--tone) 70%, transparent);
  background: color-mix(in srgb, var(--tone) 16%, transparent);
}

.news-item {
  display: grid;
  gap: 0.25rem 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  text-decoration: none;
}

.news-item time { color: var(--muted); font-variant-numeric: tabular-nums; }
.news-item strong { font-weight: 700; }
.cat {
  width: fit-content;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--cyan-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.05rem 0.55rem;
}

.filters { display: flex; flex-wrap: wrap; gap: 0.45rem; margin: 0 0 1.25rem; }

.filters button {
  min-height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  padding: 0.35rem 0.8rem;
  cursor: pointer;
}

.filters button[aria-pressed="true"] {
  background: linear-gradient(100deg, #0b3d91, #0e6f8f);
  border-color: transparent;
  color: #fff;
}

.chain { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem 0; }

.chain li { display: flex; align-items: center; font-weight: 700; }

.chain li span {
  width: 4.6rem;
  height: 4.6rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(56, 189, 248, 0.5);
  background: rgba(11, 61, 145, 0.38);
  text-align: center;
  line-height: 1.2;
  font-size: 0.92rem;
}

.chain li:not(:last-child)::after {
  content: "";
  width: 1.6rem;
  height: 1px;
  margin-inline: 0.45rem;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.join-band {
  width: min(var(--wrap), calc(100% - 2.5rem));
  margin: 1rem auto 4.5rem;
  padding: 3.2rem 1.3rem;
  text-align: center;
  border-radius: 1.75rem;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(56, 189, 248, 0.28), transparent 55%),
    linear-gradient(165deg, #0b3d91, #061426 62%);
  border: 1px solid rgba(56, 189, 248, 0.35);
}

.join-band .eyebrow { justify-content: center; }
.join-band h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); margin-bottom: 0.7rem; }
.join-band p { color: var(--muted); margin-bottom: 1.3rem; }

.page-hero { padding: calc(var(--header) + 2.8rem) 0 2.4rem; }
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 3rem); max-width: 18em; }
.crumb { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; color: var(--muted); font-size: 0.85rem; margin-bottom: 1rem; }
.crumb a { color: var(--cyan-2); }

.prose { display: grid; gap: 0.9rem; }
.prose h2 { font-size: clamp(1.35rem, 2vw, 1.7rem); margin-top: 1.2rem; }
.prose p, .prose li { line-height: 1.9; color: rgba(247, 251, 255, 0.9); }
.prose ul, .prose ol { margin: 0; padding-left: 1.2rem; display: grid; gap: 0.4rem; }
.prose a { color: var(--cyan-2); }

.steps, .path-grid, .role-grid {
  display: grid;
  gap: 0.9rem;
  margin-top: 1.2rem;
}

.steps li, .path-card, .role-card {
  list-style: none;
  padding: 1.15rem 1.1rem;
  border-radius: 1rem;
  background: rgba(8, 24, 48, 0.72);
  border: 1px solid rgba(56, 189, 248, 0.22);
}

.steps { padding: 0; }
.steps strong, .path-card .en, .role-card .en {
  display: block;
  margin-bottom: 0.35rem;
  font-family: Montserrat, sans-serif;
  color: var(--cyan-2);
  letter-spacing: 0.12em;
  font-size: 0.78rem;
}

.path-card h2, .role-card h2 { font-size: 1.2rem; margin-bottom: 0.4rem; }
.path-card p, .role-card p { color: var(--muted); margin-bottom: 0.9rem; }

.member-block { margin-top: 2.4rem; }
.member-block h2 { font-size: clamp(1.35rem, 2vw, 1.7rem); }
.member-lead { color: var(--muted); margin-top: 0.35rem; }
.member-grid {
  display: grid;
  gap: 0.9rem;
  margin-top: 1rem;
}
.member-card {
  padding: 1.15rem 1.1rem;
  border-radius: 1rem;
  background: rgba(8, 24, 48, 0.72);
  border: 1px solid rgba(56, 189, 248, 0.22);
}
.member-role {
  margin: 0 0 0.45rem;
  font-family: Montserrat, sans-serif;
  color: var(--cyan-2);
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
}
.member-card h3 {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 1.25rem;
  margin: 0;
}
.member-card .member-mark {
  width: 2.85rem;
  height: 2.85rem;
  font-size: 2rem;
  line-height: 1;
}
.member-mark {
  display: inline-grid;
  place-items: center;
  width: 1.45rem;
  height: 1.45rem;
  border-radius: 50%;
  border: 1px solid rgba(125, 211, 252, 0.7);
  color: var(--cyan-2);
  font-size: 0.78rem;
  flex: none;
}
.member-kana {
  margin: 0.25rem 0 0;
  color: var(--muted);
  letter-spacing: 0.08em;
  font-size: 0.82rem;
}
.member-duty { margin: 0.7rem 0 0; font-weight: 700; }
.member-card[class*="tone-"] {
  border-color: color-mix(in srgb, var(--tone) 62%, transparent);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--tone) 18%, transparent), rgba(8, 24, 48, 0.78));
}
.member-card[class*="tone-"] .member-role { color: var(--tone-ink); }
.member-mark[class*="tone-"] {
  background: var(--tone);
  color: var(--tone-on);
  border-color: transparent;
  font-weight: 700;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.9rem;
  margin: 0.5rem 0 0.2rem;
}

.gallery figure { margin: 0; }
.shot { aspect-ratio: 4 / 3; border-radius: 1rem; border: 1px solid rgba(255, 255, 255, 0.1); }
.gallery figcaption { margin-top: 0.4rem; color: var(--muted); font-size: 0.85rem; }

.form {
  display: grid;
  gap: 1rem;
  padding: 1.3rem;
  border-radius: 1.25rem;
  background: rgba(6, 18, 36, 0.8);
  border: 1px solid var(--line);
}

.form-row { display: grid; gap: 1rem; }
.field { display: grid; gap: 0.35rem; }
.field span { font-weight: 700; }
.req { color: var(--cyan); font-weight: 700; margin-left: 0.25rem; }

input, select, textarea {
  width: 100%;
  padding: 0.8rem 0.9rem;
  border-radius: 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(4, 12, 24, 0.65);
}

textarea { min-height: 10rem; resize: vertical; }
input[aria-invalid="true"], select[aria-invalid="true"], textarea[aria-invalid="true"] { border-color: #fca5a5; }
.field-error { color: #fecaca; font-size: 0.85rem; min-height: 1.1em; }
.check { display: flex; gap: 0.6rem; align-items: flex-start; }
.check input { width: 1.1rem; height: 1.1rem; margin-top: 0.25rem; }
.hp { position: absolute; left: -9999px; }

.form-success {
  padding: 1.5rem;
  border-radius: 1.25rem;
  border: 1px solid rgba(56, 189, 248, 0.4);
  background: rgba(11, 61, 145, 0.35);
}

.form h2,
.form-success h2 { margin-bottom: 0.6rem; font-size: 1.35rem; }
#form-summary { white-space: pre-wrap; line-height: 1.8; margin: 1rem 0; }
.note { color: var(--muted); font-size: 0.92rem; }

.site-footer {
  background: linear-gradient(180deg, rgba(6, 20, 38, 0.2), #040c18 28%);
  border-top: 1px solid rgba(56, 189, 248, 0.22);
  padding: 3rem 0 1.4rem;
}

.footer-grid { display: grid; gap: 1.8rem; }
.footer-brand { display: flex; gap: 0.8rem; text-decoration: none; align-items: center; margin-bottom: 0.8rem; }
.footer-brand img { width: 64px; height: auto; }
.footer-brand strong { display: block; font-family: Montserrat, sans-serif; letter-spacing: 0.08em; font-size: 0.95rem; }
.footer-brand em { display: block; font-style: normal; color: var(--cyan-2); font-family: Montserrat, sans-serif; letter-spacing: 0.08em; margin: 0.15rem 0; }
.address { color: var(--muted); line-height: 1.8; }
.address a { color: var(--cyan-2); }
.footer-grid h2 { font-size: 0.82rem; letter-spacing: 0.14em; color: var(--cyan-2); margin-bottom: 0.6rem; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.35rem; }
.footer-grid a { text-decoration: none; }
.footer-grid a:hover { color: var(--cyan-2); }

.social { display: flex; gap: 0.6rem; margin-top: 0.9rem; }
.social a {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.28);
  text-decoration: none;
}
.social a:hover { background: #fff; color: var(--navy); }

.legal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.2rem;
  align-items: center;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--muted);
  font-size: 0.85rem;
}
.legal a { color: var(--cyan-2); }

@media (min-width: 720px) {
  .signal { grid-template-columns: repeat(3, 1fr); }
  .form-row { grid-template-columns: 1fr 1fr; }
  .news-item { grid-template-columns: 7.2rem 8.4rem 1fr; align-items: center; }
  .event-card { grid-template-columns: 240px 1fr; }
  .event-cover { min-height: 100%; }
  .event-cover-photo img {
    position: absolute;
    inset: 0;
    height: 100%;
  }
  .event-detail { grid-template-columns: minmax(220px, 340px) minmax(0, 1fr); gap: 1.8rem; }
  .event-detail-wide { grid-template-columns: minmax(280px, 480px) minmax(0, 1fr); }
  .event-poster { position: sticky; top: calc(var(--header) + 1rem); }
  .event-poster img { width: 100%; }
  .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; }
}

@media (min-width: 900px) {
  .hero {
    align-items: flex-start;
    padding: 16vh 8vw 5rem 7vw;
  }
  .hero-copy { margin: 0; text-align: left; width: min(38rem, 52vw); }
  .hero .eyebrow { justify-content: flex-start; }
  .cta-row { justify-content: flex-start; }
  .hero-logo { margin: 0 0 0.9rem; width: 132px; }
  .hero-svg { display: block; }
  .moon-orb, .earth-orb, .radio-mobile { display: none; }
  .split, .ariss-grid { grid-template-columns: 1.05fr 0.95fr; }
  .activity-grid { grid-template-columns: repeat(6, 1fr); }
  .activity-card:nth-child(1),
  .activity-card:nth-child(2) { grid-column: span 3; }
  .activity-card:nth-child(n + 3) { grid-column: span 2; }
  .steps { grid-template-columns: repeat(4, 1fr); }
  .path-grid { grid-template-columns: repeat(3, 1fr); }
  .role-grid { grid-template-columns: repeat(3, 1fr); }
  .member-grid { grid-template-columns: 1fr 1fr; }
  .journey { display: flex; }
}

@media (min-width: 1280px) {
  .brand-en { display: block; }
  .nav-toggle { display: none; }
  .site-nav {
    position: static;
    transform: none;
    inset: auto;
    background: transparent;
    padding: 0;
    flex-direction: row;
    align-items: center;
    gap: 0.15rem;
    overflow: visible;
  }
  .site-nav a {
    border: 0;
    padding: 0.4rem 0.45rem;
    font-size: 0.9rem;
  }
  .nav-join { margin-top: 0; margin-left: 0.35rem; padding: 0.55rem 0.9rem !important; min-height: 40px; }
}

@media (min-width: 900px) and (max-width: 1279px) {
  .hero { padding-left: 6vw; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scroll-cue i, .radio-mobile span, .pulse { animation: none; }
  .activity-card, .btn { transition: none; }
}

@media (forced-colors: active) {
  .btn-primary, .activity-card, .event-card { border: 1px solid ButtonText; }
}

@keyframes bob {
  0%, 100% { translate: 0 0; opacity: 0.45; }
  50% { translate: 0 6px; opacity: 1; }
}

@keyframes ping {
  0% { transform: scale(0.45); opacity: 0.8; }
  100% { transform: scale(1.35); opacity: 0; }
}

@keyframes radio {
  0% { transform: scale(0.55); opacity: 0.85; }
  100% { transform: scale(1.5); opacity: 0; }
}