:root{
  --bg: #f6f7f9;
  --bg2:#ffffff;
  --text:#0c0f14;
  --muted:#5b6676;

  --card: rgba(255,255,255,.72);
  --stroke: rgba(10, 20, 40, .10);
  --stroke2: rgba(10, 20, 40, .14);

  --shadow: 0 30px 80px rgba(10,20,40,.12);
  --shadow2: 0 12px 30px rgba(10,20,40,.10);

  --radius: 20px;
  --radius2: 26px;
  --container: 1120px;

  --ease: cubic-bezier(.2,.9,.2,1);
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color: var(--text);
  line-height: 1.75;
  overflow-x:hidden;

  background:
    radial-gradient(1200px 700px at 20% 10%, rgba(60, 160, 255,.22), transparent 60%),
    radial-gradient(1000px 700px at 80% 0%, rgba(255, 130, 90,.18), transparent 60%),
    radial-gradient(1000px 700px at 60% 90%, rgba(120, 210, 170,.18), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg2) 40%, var(--bg) 100%);
}

a{ color:inherit; text-decoration:none; }
.container{
  width: min(var(--container), calc(100% - 40px));
  margin-inline:auto;
}

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

.skip{
  position:absolute;
  left:12px;
  top:12px;
  padding:10px 12px;
  background: rgba(255,255,255,.9);
  border:1px solid var(--stroke);
  border-radius: 999px;
  transform: translateY(-140%);
  transition: transform .2s var(--ease);
  z-index: 1000;
}
.skip:focus{ transform: translateY(0); }

/* ===== Background ===== */
.bg{
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}
.bg__orb{
  position:absolute;
  width: 720px;
  height: 720px;
  border-radius: 50%;
  filter: blur(44px);
  opacity: .45;
  transform: translate3d(0,0,0);
  animation: float 80s ease-in-out infinite alternate;
}
.bg__orb--a{
  left: -260px;
  top: -320px;
  background: radial-gradient(circle at 30% 30%, rgba(255, 130, 90,.65), rgba(255,130,90,0) 62%);
}
.bg__orb--b{
  right: -280px;
  top: 80px;
  width: 900px;
  height: 900px;
  opacity: .34;
  animation-duration: 100s;
  background: radial-gradient(circle at 40% 40%, rgba(60, 160, 255,.58), rgba(60,160,255,0) 64%);
}
.bg__orb--c{
  left: 18%;
  bottom: -580px;
  width: 980px;
  height: 980px;
  opacity: .26;
  animation-duration: 120s;
  background: radial-gradient(circle at 50% 40%, rgba(120, 210, 170,.55), rgba(120,210,170,0) 66%);
}
.bg__canvas{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  opacity:.20;
}

@keyframes float{
  0%{ transform: translate3d(0,0,0) scale(1); }
  100%{ transform: translate3d(90px, -60px, 0) scale(1.06); }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .bg__orb{ animation:none; }
}

/* ===== Header ===== */
.header{
  position: sticky;
  top:0;
  z-index: 50;
  background: rgba(255,255,255,.62);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(10,20,40,.08);
}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 0;
  gap:16px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  transition: transform .2s var(--ease);
}
.brand:hover{ transform: translateY(-1px); }
.brand__mark{
  font-weight: 750;
  letter-spacing:.18em;
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(10,20,40,.12);
  background: rgba(255,255,255,.72);
}
.brand__name{
  font-weight: 650;
  letter-spacing:.02em;
}

/* Nav */
.nav{ display:flex; align-items:center; gap:12px; position:relative; }
.nav__menu{ display:flex; gap:14px; align-items:center; }
.nav__menu a{
  color: rgba(12,15,20,.76);
  font-size: 13px;
  padding: 8px 10px;
  border-radius: 999px;
  transition: background .18s var(--ease), transform .18s var(--ease);
}
.nav__menu a:hover{
  background: rgba(255,255,255,.72);
  transform: translateY(-1px);
}

.nav__toggle{
  display:none;
  border:1px solid rgba(10,20,40,.12);
  background: rgba(255,255,255,.72);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
}
.nav__toggleLines{
  display:block;
  width:22px;height:12px;
  position: relative;
}
.nav__toggleLines::before,
.nav__toggleLines::after{
  content:"";
  position:absolute;
  left:0; right:0;
  height:2px;
  background: rgba(12,15,20,.72);
  border-radius: 999px;
}
.nav__toggleLines::before{ top:1px; }
.nav__toggleLines::after{ bottom:1px; }

/* ===== Hero ===== */
.hero{ padding: 86px 0 34px; }
.hero__inner{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 26px;
  align-items: stretch;
}
.kicker{
  margin:0 0 10px;
  color: rgba(12,15,20,.66);
  font-size: 13px;
  letter-spacing: .02em;
}
.hero__title{
  margin:0;
  font-size: clamp(42px, 5.4vw, 66px);
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.hero__subtitle{
  display:block;
  margin-top: 8px;
  font-size: 16px;
  color: rgba(12,15,20,.66);
  font-weight: 600;
  letter-spacing: .02em;
}
.hero__lead{
  margin: 14px 0 18px;
  color: rgba(12,15,20,.82);
  font-size: 16px;
}

.hero__meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin: 10px 0 18px;
}
.pill{
  font-size: 13px;
  color: rgba(12,15,20,.78);
  border:1px solid rgba(10,20,40,.10);
  background: rgba(255,255,255,.72);
  border-radius: 999px;
  padding: 9px 12px;
}

.hero__cta{ display:flex; gap:12px; flex-wrap:wrap; }
.hero__note{
  margin: 16px 0 0;
  color: rgba(12,15,20,.60);
  font-size: 12px;
}

/* Hero visual */
.hero__visual{ min-height: 340px; }
.hero__frame{
  height:100%;
  border-radius: var(--radius2);
  background: rgba(255,255,255,.55);
  border: 1px solid rgba(10,20,40,.10);
  box-shadow: var(--shadow);
  overflow:hidden;
  position: relative;
}
.hero__frameInner{
  position:absolute; inset:0;
  background:
    radial-gradient(900px 520px at 20% 20%, rgba(255,130,90,.20), transparent 60%),
    radial-gradient(900px 520px at 80% 30%, rgba(60,160,255,.18), transparent 60%),
    radial-gradient(900px 620px at 60% 90%, rgba(120,210,170,.16), transparent 65%);
}
.hero__soft{
  position:absolute; inset:-40px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
  opacity: .10;
  mix-blend-mode: multiply;
}
.hero__label{
  position:absolute;
  left: 16px;
  bottom: 16px;
  font-size: 12px;
  color: rgba(12,15,20,.62);
  letter-spacing:.08em;
}
.hero__badge{
  position:absolute;
  right: 14px;
  top: 14px;
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(10,20,40,.10);
  background: rgba(255,255,255,.72);
  color: rgba(12,15,20,.70);
}

/* ===== Sections ===== */
.section{ padding: 96px 0; }
.section__head{ margin-bottom: 18px; }
.section__title{
  margin:0;
  font-size: 26px;
  letter-spacing: -0.01em;
  font-weight: 650;
}
.section__desc{
  margin: 6px 0 0;
  color: rgba(12,15,20,.62);
  font-size: 14px;
  max-width: 62ch;
}

/* Cards */
.card{
  border: 1px solid rgba(10,20,40,.10);
  background: rgba(255,255,255,.70);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow2);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease);
}
.card:hover{
  transform: translateY(-4px);
  box-shadow: 0 22px 60px rgba(10,20,40,.12);
}
.card__meta{
  display:flex;
  gap:10px;
  align-items:center;
  color: rgba(12,15,20,.56);
  font-size: 12px;
}
.dot{ width:3px;height:3px;border-radius:999px; background: rgba(12,15,20,.28); }
.card__title{ margin: 10px 0 10px; font-size: 18px; letter-spacing:-0.01em; }
.card__text{ margin: 0 0 10px; color: rgba(12,15,20,.80); }
.subtle{ color: rgba(12,15,20,.58); }

/* chips */
.card__pillRow{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin: 10px 0 12px;
}
.chip{
  display:inline-flex;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(10,20,40,.10);
  background: rgba(255,255,255,.74);
  color: rgba(12,15,20,.74);
  font-size: 13px;
}

/* details */
.details{
  margin: 10px 0 12px;
  border: 1px solid rgba(10,20,40,.10);
  border-radius: 16px;
  background: rgba(255,255,255,.74);
  padding: 10px 12px;
}
.details summary{
  cursor:pointer;
  color: rgba(12,15,20,.70);
  font-size: 13px;
}
.details__body{
  margin-top: 10px;
  color: rgba(12,15,20,.66);
  font-size: 13px;
  line-height: 1.7;
}

/* Layout grids */
.twoCol{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.grid3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}
.grid2{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* Clean lists */
.listClean{
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}
.listClean li{
  padding: 10px 0;
  border-bottom: 1px solid rgba(10,20,40,.08);
  color: rgba(12,15,20,.78);
}
.listClean li:last-child{ border-bottom: none; }

/* Soft note */
.softNote{
  margin-top: 12px;
  padding: 14px 14px;
  border-radius: 16px;
  border: 1px solid rgba(10,20,40,.08);
  background: rgba(255,255,255,.74);
}
.softNote__title{
  font-size: 12px;
  color: rgba(12,15,20,.58);
  letter-spacing:.06em;
}
.softNote__text{
  margin-top: 6px;
  color: rgba(12,15,20,.78);
  font-size: 14px;
}

/* Join block */
.join{
  border: 1px solid rgba(10,20,40,.10);
  background: rgba(255,255,255,.62);
  border-radius: var(--radius2);
  padding: 22px;
  box-shadow: var(--shadow);
}
.join__left{ margin-bottom: 14px; }
.join__grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.joinCard{
  display:block;
  border-radius: 18px;
  border: 1px solid rgba(10,20,40,.10);
  background: rgba(255,255,255,.72);
  padding: 16px;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease);
}
.joinCard:hover{
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(10,20,40,.12);
}
.joinCard__title{
  font-weight: 700;
  letter-spacing:-0.01em;
}
.joinCard__text{
  margin-top: 8px;
  color: rgba(12,15,20,.70);
  font-size: 14px;
}
.joinCard__cta{
  margin-top: 12px;
  color: rgba(12,15,20,.78);
  font-size: 13px;
}

/* Venues clean */
.venuesClean{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 12px;
}
.venueClean{
  border: 1px solid rgba(10,20,40,.10);
  border-radius: 16px;
  padding: 14px;
  background: rgba(255,255,255,.74);
}
.venueClean__name{ font-weight: 700; }
.venueClean__desc{ margin-top: 6px; color: rgba(12,15,20,.64); font-size: 13px; }

/* QR placeholder */
.qrPlaceholder{
  margin-top: 12px;
  display:flex;
  align-items:center;
  gap: 14px;
  padding: 12px;
  border-radius: 18px;
  border: 1px dashed rgba(10,20,40,.18);
  background: rgba(255,255,255,.72);
}
.qrPlaceholder__box{
  width: 86px;
  height: 86px;
  border-radius: 16px;
  border:1px solid rgba(10,20,40,.10);
  background:
    radial-gradient(circle at 30% 30%, rgba(255,130,90,.22), transparent 55%),
    radial-gradient(circle at 70% 70%, rgba(60,160,255,.18), transparent 55%),
    rgba(255,255,255,.74);
}
.qrPlaceholder__text{
  font-size: 12px;
  color: rgba(12,15,20,.58);
  letter-spacing:.14em;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 12px 16px;
  border-radius: 14px;
  border:1px solid rgba(10,20,40,.12);
  background: rgba(255,255,255,.78);
  color: rgba(12,15,20,.86);
  font-size: 14px;
  letter-spacing:.01em;
  transition: transform .18s var(--ease), box-shadow .18s var(--ease);
}
.btn:hover{
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(10,20,40,.10);
}
.btn--primary{
  background: linear-gradient(135deg, rgba(60,160,255,.85), rgba(120,210,170,.75), rgba(255,130,90,.70));
  color: rgba(12,15,20,.92);
  border-color: rgba(10,20,40,.08);
}
.btn--ghost{
  background: rgba(255,255,255,.62);
}

.link{
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Footer */
.footer{
  padding: 26px 0 34px;
  background: rgba(255,255,255,.55);
  border-top: 1px solid rgba(10,20,40,.08);
}
.footer__inner{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 16px;
}
.footer__brand{ font-weight: 700; }
.footer__small{ margin-top: 6px; color: rgba(12,15,20,.56); font-size: 12px; }
.footer__right{ display:flex; gap: 10px; flex-wrap:wrap; }
.footer__right a{
  color: rgba(12,15,20,.66);
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 999px;
}
.footer__right a:hover{ background: rgba(255,255,255,.72); }

.footerNav{ margin-top: 18px; }

/* Reveal */
.reveal{
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px){
  .hero__inner{ grid-template-columns: 1fr; }
  .hero__visual{ min-height: 260px; }
  .grid3{ grid-template-columns: 1fr; }
  .grid2{ grid-template-columns: 1fr; }
  .twoCol{ grid-template-columns: 1fr; }
  .venuesClean{ grid-template-columns: 1fr; }
  .join__grid{ grid-template-columns: 1fr; }

  .nav__toggle{ display:inline-flex; }
  .nav__menu{
    display:none;
    position:absolute;
    right: 0;
    top: 52px;
    flex-direction: column;
    gap: 8px;
    padding: 12px;
    border-radius: 18px;
    border:1px solid rgba(10,20,40,.10);
    background: rgba(255,255,255,.84);
    backdrop-filter: blur(18px);
    min-width: 220px;
    box-shadow: 0 18px 50px rgba(10,20,40,.12);
  }
  .nav__menu.is-open{ display:flex; }
}