:root{
  --paper:#f2e1c9;
  --ink:#3a2c23;
  --frame: 34px;
  --bg:#070b14;
  --bg2:#0b1220;
  --fg:#eaf0ff;
  --muted:#b9c5ea;
  --line:rgba(255,255,255,.10);
  --line2:rgba(255,255,255,.06);
  --accent:#6ff3ff;
  --accent2:#ff7ad9;
  --accent3:#7dffa7;
  --shadow: 0 12px 40px rgba(0,0,0,.45);
  --radius: 20px;
  --radius2: 28px;
  --header-h: 72px;
  --ease: cubic-bezier(.2,.8,.2,1);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: var(--bg);
  color:var(--fg);
  overflow:hidden; /* scroll inside main */
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}

/* Frame + stage - 16:9 비율 유지, 중앙 정렬 */
.frame{
  height:100vh;
  width:100vw;
  padding:0;
  display:flex;
  align-items:center;
  justify-content:center;
  background: var(--bg);
}
.stage{
  width: 100%;
  max-width: calc(100vh * 16 / 9); /* 16:9 비율 유지 */
  height: 100%;
  max-height: calc(100vw * 9 / 16);
  position:relative;
  overflow:hidden;
  border:none;
  /* 배경 이미지 설정 */
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-image: url("assets/home/hero.png"); /* 기본값 */
  transition: background-image 0.5s ease;
}
/* 섹션별 배경 - JavaScript로 클래스 변경 */
.stage.bg-home { background-image: url("assets/home/hero.png"); }
.stage.bg-crews { background-image: url("assets/crew/bg.png"); }
.stage.bg-expedition { background-image: url("assets/expedition/bg.png"); }
.stage.bg-about { background-image: url("assets/about/bg.png"); }
button:focus-visible, a:focus-visible, input:focus-visible{
  outline: 2px solid rgba(111,243,255,.65);
  outline-offset: 3px;
  border-radius: 12px;
}

/* Background layers - stage 내부에서만 보임 */
.bg-layer{
  position:absolute; 
  inset:0;
  pointer-events:none;
  z-index:1;
  transform: translate3d(0,0,0);
}
.bg-stars{
  background-image:
    radial-gradient(rgba(255,255,255,.18) 1px, transparent 1px),
    radial-gradient(rgba(255,255,255,.10) 1px, transparent 1px);
  background-size: 70px 70px, 110px 110px;
  background-position: 0 0, 40px 20px;
  opacity:.25;
  animation: drift 24s linear infinite;
  filter: blur(.1px);
}
.bg-glow{
  background:
    radial-gradient(900px 600px at 70% 25%, rgba(111,243,255,.06), transparent 60%),
    radial-gradient(800px 600px at 30% 75%, rgba(255,122,217,.06), transparent 60%),
    radial-gradient(700px 500px at 35% 25%, rgba(125,255,167,.05), transparent 60%);
  opacity:.7;
  animation: breathe 10s var(--ease) infinite alternate;
}

@keyframes drift{
  from{transform: translate3d(0,0,0)}
  to{transform: translate3d(4%, -3%, 0)}
}
@keyframes breathe{
  from{transform: translate3d(0,0,0) scale(1)}
  to{transform: translate3d(-1%, 1.2%, 0) scale(1.02)}
}

/* Header */
.header{
  position:absolute;
  top:0; left:0; right:0;
  height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 0 26px;
  z-index:20;
  background: transparent;
  border-bottom: none;
}
.brand{display:flex;align-items:center;gap:10px; min-width:160px}
.brand__logo{height:42px; width:auto; filter: drop-shadow(0 10px 18px rgba(0,0,0,.35))}
.nav{
  position:relative;
  display:flex;
  gap: 34px;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
}
.nav__item{
  position:relative;
  padding: 10px 2px 14px;
  border-radius: 0;
  color: rgba(246,234,217,.92);
  letter-spacing:.2px;
  font-weight:700;
  text-shadow: 0 10px 18px rgba(0,0,0,.35);
  display:flex;
  align-items:center;
  gap:10px;
}
.nav__item::before{
  content:"";
  width:16px;height:16px;
  border:2px solid rgba(246,234,217,.92);
  border-radius:999px;
  box-sizing:border-box;
  background: radial-gradient(circle at 50% 50%, rgba(246,234,217,.92) 0 2px, transparent 3px);
  opacity:.95;
}
.nav__item::after{
  content:"";
  position:absolute;
  left: 26px;
  right: 0;
  bottom: 6px;
  height: 2px;
  border-radius: 2px;
  background: rgba(246,234,217,.92);
  opacity: 0;
  transform: translateY(2px);
  transition: opacity .25s var(--ease), transform .25s var(--ease);
}
.nav__item:hover::after{opacity:.55; transform: translateY(0)}
.nav__item[aria-current="true"]::after{opacity:1; transform: translateY(0)}
.nav__active{display:none}

.header__actions{display:flex;align-items:center;gap:10px; min-width:160px; justify-content:flex-end}

/* 헤더 Pre-Register 버튼 */
.header-register{
  background: #a64525;
  color: #fff6ea;
  border: 3px solid #fff6ea;
  border-radius: 999px;
  padding: 8px 20px;
  font-weight: 900;
  font-size: 14px;
  letter-spacing:.2px;
  box-shadow: 0 8px 20px rgba(0,0,0,.3);
  text-decoration: none;
  display: none; /* 기본 숨김, JS로 제어 */
}
.header-register:hover{filter: brightness(1.05)}
.header-register.is-visible{display: inline-flex;}
.icon-btn{
  width:38px; height:38px;
  display:grid;place-items:center;
  border:0;
  border-radius: 12px;
  background: transparent;
  color: rgba(246,234,217,.92);
  text-shadow: 0 10px 18px rgba(0,0,0,.35);
}
.icon-btn:hover{background: rgba(255,255,255,.10)}
.icon{font-size:18px; opacity:.95}
.icon-img{
  width: 18px;
  height: 18px;
  object-fit: contain;
  opacity: .95;
}
/* BGM on 상태 표시 */
.icon-btn[aria-pressed="true"] .icon-img{
  opacity: 1;
  filter: drop-shadow(0 0 4px rgba(111,243,255,.6));
}

/* Language menu */
.lang-menu{
  position:absolute;
  top: calc(var(--header-h) + 10px);
  right: 18px;
  width: 160px;
  z-index:30;
  border: 1px solid var(--line2);
  border-radius: 16px;
  background: rgba(10,14,26,.92);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.lang-menu__item{
  width:100%;
  text-align:left;
  padding: 12px 12px;
  color: rgba(234,240,255,.92);
}
.lang-menu__item:hover{background: rgba(255,255,255,.06)}

/* Right social bar */
.social{
  position:absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  display:flex;
  flex-direction:column;
  gap:10px;
  z-index:20;
}
.social__btn{
  width:40px;height:40px;
  border-radius: 14px;
  border: 1px solid var(--line2);
  background: rgba(255,255,255,.03);
  display:grid;place-items:center;
}
.social__btn:hover{background: rgba(255,255,255,.08)}
.social__btn svg{width:18px;height:18px; fill: rgba(234,240,255,.88)}

/* Main scroll container */
.main{
  position:relative;
  z-index:2;
  height: 100%;
  overflow-y:auto;
  overflow-x:hidden;          /* prevent horizontal scrollbar */
  scroll-snap-type: y mandatory;
  scroll-behavior:smooth;

  -ms-overflow-style: none;   /* IE/Edge */
  scrollbar-width: none;      /* Firefox */
}

.main::-webkit-scrollbar{
  width: 0;                   /* Chrome/Safari */
  height: 0;
}

.section{
  scroll-snap-align: start;
  min-height:100%;
  height:100%;
  padding-top: calc(var(--header-h) + 26px);
  padding-bottom: 60px;
  display:flex;
  align-items:stretch;
  position:relative;
  /* 배경은 .stage에서 처리 */
  background: transparent;
}
.section__inner{
  width:min(1180px, calc(100% - 36px));
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap: 22px;
  position:relative;
  z-index:2;
}
.section__head{margin-top: 6px}
.h2{font-size: 40px; margin:0; letter-spacing:-.6px}
.lead{margin:8px 0 0; color: rgba(185,197,234,.9); max-width: 62ch}

/* Reveal animations */
.reveal{
  opacity:0;
  transform: translateY(18px);
  transition: opacity .65s var(--ease), transform .65s var(--ease);
}
.reveal.is-in{
  opacity:1;
  transform: translateY(0);
}

.kicker{
  display:inline-flex;
  gap:10px;
  align-items:center;
  padding: 8px 12px;
  border-radius: 999px;
  border:1px solid var(--line2);
  background: rgba(255,255,255,.03);
  color: rgba(234,240,255,.86);
  font-weight:700;
  width: fit-content;
}
.title{font-size: 54px; line-height:1.02; margin:14px 0 10px; letter-spacing:-1px}
.subtitle{margin: 0 0 18px; color: rgba(185,197,234,.92); max-width: 60ch}

.micro{margin-top:14px; color: rgba(185,197,234,.75); font-size: 13px}

.btn{
  border-radius: 16px;
  padding: 12px 14px;
  display:inline-flex;
  align-items:center;
  gap: 10px;
  border:1px solid var(--line2);
  background: rgba(255,255,255,.03);
  font-weight:800;
  letter-spacing:.2px;
}
.btn:hover{background: rgba(255,255,255,.07)}
.btn--primary{
  border-color: transparent;
  background: linear-gradient(135deg, rgba(111,243,255,.95), rgba(255,122,217,.86));
  color: #071019;
  box-shadow: 0 16px 30px rgba(0,0,0,.28);
}
.btn--subscribe{
  font-family: 'Autour One', cursive;
  background: #185491;
  border: 2px solid #1173D8;
  color: #fff;
  box-shadow: 0 8px 20px rgba(0,0,0,.25);
}
.btn--subscribe:hover{
  background: #1a5fa3;
}
.btn--ghost{
  background: rgba(255,255,255,.02);
}
.btn__hint{opacity:.75; font-weight:900}

.card{
  border-radius: var(--radius2);
  border: 1px solid var(--line2);
  background: rgba(255,255,255,.02);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.card--glow{
  position:relative;
}
.card--glow:before{
  content:"";
  position:absolute; inset:-1px;
  background: radial-gradient(500px 220px at 50% 0%, rgba(111,243,255,.18), transparent 60%),
              radial-gradient(500px 220px at 20% 100%, rgba(255,122,217,.14), transparent 60%);
  pointer-events:none;
}

/* Home hero */
.hero{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 22px;
  align-items:center;
  margin-top: 22px;
}
.hero__copy{display:flex;flex-direction:column}
.hero__art{position:relative}
.floating-pill{
  position:absolute;
  left:-12px;
  bottom: 18px;
  padding: 10px 12px;
  border-radius: 999px;
  border:1px solid var(--line2);
  background: rgba(7,11,20,.65);
  backdrop-filter: blur(12px);
  font-weight:800;
  letter-spacing:.2px;
  box-shadow: 0 18px 32px rgba(0,0,0,.32);
}

/* Crews */
.crews{
  display:grid;
  grid-template-columns: 220px 1fr;
  gap: 18px;
  align-items:stretch;
}
.crew-nav{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding: 14px;
  border-radius: var(--radius);
  border:1px solid var(--line2);
  background: rgba(255,255,255,.02);
}
.crew-nav__btn{
  display:flex;
  align-items:center;
  gap:10px;
  padding: 10px;
  border-radius: 16px;
  border: 1px solid transparent;
  background: rgba(255,255,255,.02);
}
.crew-nav__btn:hover{background: rgba(255,255,255,.06)}
.crew-nav__btn[aria-selected="true"]{
  background: rgba(111,243,255,.10);
  border-color: rgba(111,243,255,.35);
}
.crew-nav__btn img{width:42px;height:42px;border-radius:14px;border:1px solid var(--line2)}
.crew-nav__label{display:flex;flex-direction:column;line-height:1.1}
.crew-nav__name{font-weight:900}
.crew-nav__sub{font-size:12px;color: rgba(185,197,234,.78);margin-top:4px}

.crew-panel{
  display:grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 16px;
  padding: 14px;
  border-radius: var(--radius);
  border:1px solid rgba(255,255,255,.20);
  background: rgba(255,255,255,.20);
  align-items:stretch;
}
.crew-panel__media{
  position: relative;
  border-radius: var(--radius); 
  overflow:hidden; 
  border:1px solid rgba(255,255,255,.20); 
  background: rgba(255,255,255,.20);
}
.crew-panel__media img{
  width:100%; 
  height:100%; 
  object-fit:cover;
  transition: opacity 1s ease;
}
.crew-panel__media img.crossfade-out{
  opacity: 0;
}
.crew-panel__media img.crossfade-new{
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
}
.crew-panel__media img.crossfade-new.show{
  opacity: 1;
}
.crew-panel__body{display:flex;flex-direction:column; gap: 12px; padding: 6px 6px 10px}
.crew-panel__meta{display:flex;gap:10px; flex-wrap:wrap}
.chip{
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(111,243,255,.30);
  background: rgba(235, 253, 255, 0.3);
  font-weight:800;
  color: rgba(234,240,255,.95);
  font-size: 12px;
}
.chip--soft{border-color: rgba(255,122,217,.30); background: rgba(255,122,217,.10)}
.h3{margin:0; font-size: 28px; letter-spacing:-.3px}
.copy{margin:0; color: rgba(225,239,255,.90); line-height:1.6}
/* Gallery 숨김 */
.crew-panel__gallery{display:none}
.thumb{
  width: 90px;
  height: 60px;
  border-radius: 14px;
  border:1px solid var(--line2);
  background: rgba(255,255,255,.02);
  overflow:hidden;
}
.thumb img{width:100%;height:100%;object-fit:cover}

/* Gallery */
.gallery{
  border-radius: var(--radius);
  border:1px solid var(--line2);
  background: rgba(255,255,255,.02);
  padding: 14px;
  display:flex;
  flex-direction:column;
  gap: 12px;
}
.gallery__frame{
  position: relative;
  border-radius: var(--radius);
  overflow:hidden;
  border:1px solid var(--line2);
  background: rgba(0,0,0,.22);
  height: min(62vh, 520px);
}
.gallery__frame img{
  width:100%; height:100%;
  object-fit:cover;
  transition: opacity 1s ease;
}
.gallery__frame img.crossfade-out{
  opacity: 0;
}
.gallery__frame img.crossfade-new{
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
}
.gallery__frame img.crossfade-new.show{
  opacity: 1;
}
.gallery__controls{
  display:flex;
  align-items:center;
  justify-content:center;
  gap: 12px;
}
.pill{
  width:46px; height:46px;
  border-radius: 16px;
  border:1px solid var(--line2);
  background: rgba(255,255,255,.03);
  font-weight:900;
}
.pill:hover{background: rgba(255,255,255,.07)}
.dots{display:flex; gap:8px; align-items:center}
.dot{
  width:10px; height:10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.06);
}
.dot.is-on{
  background: linear-gradient(135deg, rgba(111,243,255,.95), rgba(255,122,217,.85));
  border-color: transparent;
  box-shadow: 0 10px 18px rgba(0,0,0,.22);
}
/* Expedition gallery dots */
.gallery__controls .dot.is-on{
  background: #EAF0FF;
  border-color: transparent;
  box-shadow: 0 10px 18px rgba(0,0,0,.22);
}

/* About */
.about{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items:stretch;
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid var(--line2);
  background: rgba(255, 255, 255, 0.3);
}
.about__media{
  position: relative;
  height: min(54vh, 430px);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line2);
}
.about__media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition: opacity 1s ease;
}
.about__media img.crossfade-out{
  opacity: 0;
}
.about__media img.crossfade-new{
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
}
.about__media img.crossfade-new.show{
  opacity: 1;
}
.about__body{
  display:flex;
  flex-direction:column;
  gap: 12px; 
  padding: 6px 6px 10px;
}
.about__body .h3{color: #356EAF;}
.about__body .copy{color: #356EAF;}
.about__controls{display:flex;align-items:center;gap: 12px; margin-top: auto}
/* About Us prev/next 버튼 */
.about__controls .pill{
  background: rgba(241, 241, 243, 0.8);
  border: 1px solid #5D8CBC;
  color: #356EAF;
}
.about__controls .pill:hover{background: rgba(241, 241, 243, 1)}
/* About Us dots - 비활성화 */
.about__controls .dot{
  border: 1px solid #5D8CBC;
  background: rgba(247, 248, 250, 0.8);
}
/* About Us dots - 활성화 */
.about__controls .dot.is-on{
  background: #69B3FF;
  border: 1px solid #5D8CBC;
  box-shadow: none;
}

/* Subscribe */
.subscribe{margin-top: 6px}
.subscribe__box{
  border-radius: var(--radius);
  border:1px solid var(--line2);
  background: rgba(255, 255, 255, 0.6);
  padding: 18px;
  box-shadow: var(--shadow);
}
.subscribe__title{font-weight:900; font-size: 18px; color: #1a1a1a;}
.subscribe__desc{color: #333; margin-top: 6px}
.subscribe__form{display:flex; gap: 10px; margin-top: 14px; flex-wrap:wrap}
.input{
  flex: 1 1 260px;
  height: 46px;
  border-radius: 16px;
  border:1px solid rgba(0,0,0,.15);
  background: rgba(255,255,255,.8);
  color: #1a1a1a;
  padding: 0 14px;
}
.input::placeholder{color: #666;}
.subscribe__note{margin-top: 10px; font-size: 12px; color: #555}

/* Footer */
.footer{
  margin-top: 18px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap: 18px;
  padding: 18px 0 0;
  border-top: 1px solid var(--line2);
}
.footer__logo{height: 46px; width:auto; opacity:.92}

/* Modal */
.modal{
  position:absolute; inset:0;
  display:none;
  z-index:50;
}
.modal.is-open{display:block}
.modal__backdrop{
  position:absolute; inset:0;
  background: rgba(0,0,0,.72);
  backdrop-filter: blur(8px);
}
.modal__dialog{
  position:relative;
  width:min(980px, calc(100% - 28px));
  height: min(70vh, 560px);
  margin: 90px auto 0;
  border-radius: var(--radius2);
  border: 1px solid var(--line2);
  background: rgba(10,14,26,.85);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.modal__close{
  position:absolute;
  top: 10px;
  right: 10px;
  width:42px;height:42px;
  border-radius: 14px;
  border:1px solid var(--line2);
  background: rgba(255,255,255,.05);
  font-weight:900;
  z-index:2;
}
.modal__close:hover{background: rgba(255,255,255,.10)}
.modal__frame{position:absolute; inset:0; padding: 56px 14px 14px}
.modal__frame iframe{border-radius: 18px; border:1px solid var(--line2); background:#000}

/* Toast */
.toast{
  position:absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--line2);
  background: rgba(10,14,26,.85);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  color: rgba(234,240,255,.92);
  opacity:0;
  pointer-events:none;
  transition: opacity .25s var(--ease), transform .25s var(--ease);
  z-index:60;
}
.toast.is-on{opacity:1; transform: translateX(-50%) translateY(-4px)}

/* Responsive */
@media (max-width: 980px){
  .hero{grid-template-columns: 1fr; margin-top: 10px}
  .crews{grid-template-columns: 1fr}
  .crew-panel{grid-template-columns: 1fr}
  .about{grid-template-columns: 1fr}
  .social{right: 8px}
  .title{font-size: 44px}
  .h2{font-size: 34px}
  body{overflow:auto}
  .main{overflow-y:auto}
}


/* ---------- Home hero (full-bleed style) ---------- */
.section--home{
  padding-top: 0;
  padding-bottom: 0;
  display:block;
}
.section--home .section__inner{width:100%; margin:0;}
.home-hero{
  position:relative;
  height:100%;
  width:100%;
}
.home-hero__bg{
  display:none; /* 배경은 stage에서 직접 처리 */
}
.home-hero__vignette{
  position:absolute; inset:0;
  background:
    radial-gradient(900px 520px at 70% 55%, transparent 40%, rgba(0,0,0,.35) 100%),
    linear-gradient(180deg, rgba(0,0,0,.35), rgba(0,0,0,.10) 40%, rgba(0,0,0,.28));
  pointer-events:none;
}
/* 파도 모양 SVG 숨기기 */
.home-cloud{
  display: none;
}
@keyframes heroDrift{
  from{transform: translate3d(0,0,0) scale(1.05)}
  to{transform: translate3d(-1.2%, 1.0%, 0) scale(1.07)}
}

.home-cta{
  position:absolute;

  /* ✅ stage(배경) 기준으로 항상 같은 위치 */
  left: max(calc(env(safe-area-inset-left) + 18px), 4.2%);
  bottom: max(calc(env(safe-area-inset-bottom) + 18px), 7%);

  display:flex;
  align-items:center;
  gap: clamp(10px, 1.6vmin, 18px);
  z-index:5;

  /* ✅ 창 크기에 따라 CTA 전체 사이즈 스케일 */
  --cta-h: clamp(52px, 7vmin, 92px);
  --cta-font: clamp(16px, 2.2vmin, 28px);
  --cta-pad-x: clamp(22px, 3.6vmin, 46px);
  --cta-border: clamp(2px, .35vmin, 4px);
}

.cta-pill{
  background: #a64525;
  color: #fff6ea;
  border: var(--cta-border) solid #fff6ea;
  border-radius: 999px;

  height: var(--cta-h);
  padding: 0 var(--cta-pad-x);

  font-weight: 900;
  letter-spacing:.2px;
  box-shadow: 0 14px 28px rgba(0,0,0,.35);
  font-size: var(--cta-font);

  display: inline-flex;
  align-items: center;
}
.cta-pill:hover{filter: brightness(1.05)}
.cta-play{
  padding: 0;
  border: none;
  background: transparent;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}
.cta-play__img{
  height: var(--cta-h);
  width: auto;
}
.cta-play:hover{filter: brightness(1.1)}

/* 기존 stage 스타일 제거됨 - 각 섹션에 직접 배경 적용 */