:root{
  --bg:#05070f; --ink:#eaf2ff; --muted:#9fb3d1;
  --panel:rgba(10,16,30,.72); --panel-solid:#0a1220;
  --line:rgba(120,160,220,.18);
  --accent:#00E5FF;
  --safe-b:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Pretendard",
    "Noto Sans KR",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased; line-height:1.5;
  overflow-x:hidden;
}
a{color:var(--accent);text-decoration:none}
img{max-width:100%;display:block}

/* 세로 스크롤 단일 페이지 */
.app{max-width:520px;margin:0 auto;position:relative}
section{position:relative;width:100%}

/* ── 통일 배경: 인트로 이후 전체 영역(조선택·지도·채팅·플레이리스트)을
      지도배경 이미지로 하나처럼 깐다. 고정(fixed)이라 스크롤해도 이어짐. */
.app::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:#05070f var(--page-bg, none) center/cover no-repeat;
}
.app::after{ /* 가독성을 위한 살짝 어두운 오버레이 */
  content:"";position:fixed;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(5,7,15,.45),rgba(5,7,15,.62));
}

/* 공통 섹션 타이틀 */
.sec-title{
  font-size:13px;letter-spacing:.28em;color:var(--muted);
  text-transform:uppercase;margin:0 0 14px;font-weight:700
}
.sec-pad{padding:34px 18px}

/* ── 1. 인트로 ───────────────────────── */
.hero{
  height:100svh;          /* 첫 화면 높이 (JS가 px로 고정) */
  position:relative;
  background:#05070f;
  overflow:hidden;
}
/* 인트로 배경을 실제 <img>로 넣고 JS가 로드 시점 화면 크기에 px로 고정.
   주소창이 접혀 화면이 커져도 이미지 크기가 절대 안 변함 → 확대 방지 */
.hero-img{
  position:absolute;left:0;top:0;
  width:100%;height:100%;
  object-fit:cover;object-position:center;
  display:block;z-index:0;pointer-events:none;
}


/* 미리보기/안내 배너 */
.banner{
  margin:0;padding:11px 14px;font-size:12.5px;line-height:1.45;
  background:rgba(255,180,0,.12);border-bottom:1px solid rgba(255,180,0,.3);
  color:#ffd98a;display:none
}
.banner.show{display:block}

/* ── 2. 조 선택 + 명단 ───────────────── */
.groups{background:transparent}
.groups .inner{padding:30px 16px 40px;background:transparent}
.group-grid{display:flex;flex-direction:row;flex-wrap:nowrap;
  justify-content:center;gap:8px;align-items:flex-start}
.group{flex:1 1 0;min-width:0;display:flex;flex-direction:column;align-items:center}
.group-head{display:flex;justify-content:center;margin-bottom:14px}
.circle{
  width:46px;height:46px;border-radius:50%;flex:0 0 auto;
  position:relative;
  box-shadow:0 0 14px currentColor,0 0 28px currentColor;
}
.circle::after{content:"";position:absolute;inset:5px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,rgba(255,255,255,.55),transparent 60%)}
.names{display:flex;flex-direction:column;gap:8px;width:100%}
.name{
  border:1.5px solid var(--line);border-radius:11px;
  background:rgba(8,14,26,.55);
  padding:12px 4px;text-align:center;font-size:13.5px;font-weight:600;
  color:#dbe7fb;cursor:pointer;user-select:none;
  transition:transform .12s, box-shadow .2s, background .2s, color .2s;
  position:relative;overflow:hidden;white-space:nowrap
}
.name:active{transform:scale(.96)}
.name.on{
  color:#04101e;border-color:transparent;font-weight:800;
  background:var(--gc);
  box-shadow:0 0 12px var(--gc),0 0 26px var(--gc)
}

.pick-hint{font-size:12.5px;color:var(--muted);margin:2px 0 20px;text-align:center}

/* ── 3. 사진 미션 ─────────────────────── */
.photos{background:transparent;padding:28px 16px 8px}
.photos-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.photos-head .sec-title{margin:0}
.gallery-btn{border:1px solid var(--accent);border-radius:20px;
  background:rgba(0,229,255,.12);color:var(--accent);
  font-size:12px;font-weight:800;padding:7px 14px;cursor:pointer;white-space:nowrap}
.gallery-btn:active{transform:scale(.95)}
.photo-actions{margin-bottom:14px}
.cam-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;
  border:1.5px dashed rgba(120,160,220,.4);border-radius:14px;
  background:rgba(8,14,26,.5);color:#dbe7fb;font-size:15px;font-weight:700;
  padding:16px;cursor:pointer;transition:.15s}
.cam-btn:active{transform:scale(.98)}
.cam-btn .cam-ico{height:30px;width:auto;display:block;object-fit:contain}
.photo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.photo-grid .ph{position:relative;aspect-ratio:1;border-radius:12px;overflow:hidden;
  border:1px solid var(--line);background:#0a1426;cursor:pointer}
.photo-grid .ph img{width:100%;height:100%;object-fit:cover}
.photo-grid .ph .by{position:absolute;left:0;right:0;bottom:0;
  font-size:10px;font-weight:700;color:#fff;padding:3px 6px;
  background:linear-gradient(0deg,rgba(0,0,0,.6),transparent)}
.photo-grid .ph.uploading{display:flex;align-items:center;justify-content:center;
  color:var(--muted);font-size:12px;aspect-ratio:1}
.photo-empty{font-size:12.5px;color:var(--muted);text-align:center;padding:8px 0 0}

/* 갤러리 전체화면 */
.gallery-full{position:fixed;inset:0;z-index:250;background:#05070f;
  display:none;flex-direction:column}
.gallery-full.show{display:flex}
.gallery-bar{display:flex;align-items:center;justify-content:space-between;
  padding:calc(14px + env(safe-area-inset-top,0px)) 16px 12px;
  border-bottom:1px solid var(--line);background:rgba(5,7,15,.95)}
.gallery-bar b{font-size:15px}
.gallery-bar button{border:1px solid var(--line);border-radius:18px;
  background:#1b2741;color:#cfe0ff;font-size:13px;font-weight:800;padding:7px 14px;cursor:pointer}
.gallery-scroll{flex:1;overflow-y:auto;padding:12px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:6px;align-content:start}
.gallery-scroll .ph{position:relative;aspect-ratio:1;border-radius:8px;overflow:hidden;
  background:#0a1426;cursor:pointer}
.gallery-scroll .ph img{width:100%;height:100%;object-fit:cover}
.gallery-scroll .ph .by{position:absolute;left:0;right:0;bottom:0;
  font-size:9px;font-weight:700;color:#fff;padding:2px 5px;
  background:linear-gradient(0deg,rgba(0,0,0,.6),transparent)}

/* 사진 1장 크게보기 */
.photo-view{position:fixed;inset:0;z-index:320;background:rgba(2,4,10,.94);
  display:none;flex-direction:column;align-items:center;justify-content:center;padding:20px}
.photo-view.show{display:flex}
.photo-view img{max-width:100%;max-height:78vh;border-radius:10px;object-fit:contain}
.pv-close{position:absolute;top:calc(14px + env(safe-area-inset-top,0px));right:16px;
  width:40px;height:40px;border-radius:50%;border:none;background:rgba(255,255,255,.15);
  color:#fff;font-size:18px;cursor:pointer}
.pv-actions{margin-top:18px}
#pvSave{display:inline-block;background:var(--accent);color:#04101e;font-weight:800;
  font-size:15px;padding:13px 24px;border-radius:24px;cursor:pointer;text-decoration:none}

/* ── 4. 지도 ─────────────────────────── */
.mapwrap{background:transparent;padding:30px 12px 26px}
.map-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;gap:8px}
.map-head .sec-title{margin:0}
.map-head-btns{display:flex;gap:7px;flex-shrink:0}
.route-toggle,.compass-toggle{
  border:1px solid var(--accent);border-radius:20px;
  background:rgba(0,229,255,.12);color:var(--accent);
  font-size:12px;font-weight:800;padding:7px 12px;cursor:pointer;
  white-space:nowrap;transition:.15s
}
.route-toggle:active,.compass-toggle:active{transform:scale(.95)}
.compass-toggle.on{background:var(--accent);color:#04101e}

/* 지도 스테이지 = 회전 마스크 (모서리 빈 곳 가림) */
#mapStage{position:relative;width:100%;height:var(--map-h,62svh);min-height:380px;
  border-radius:16px;border:1px solid var(--line);overflow:hidden;background:#0a1426}
#map{position:absolute;inset:0;width:100%;height:100%;
  transform-origin:50% 50%;will-change:transform;background:#0a1426}
/* 나침반 모드: 지도 회전(transform은 JS가 직접 갱신 — 끊김 최소화).
   회전 시 빈 모서리를 막기 위해 scale 1.5 포함(JS transform에서 적용) */
/* 회전해도 마커 라벨이 거꾸로 안 보이게 보정 */
#mapStage.compass .kakao-rot-fix{transform:rotate(calc(-1 * var(--map-rot,0deg)))}
.map-fallback{display:flex;align-items:center;justify-content:center;
  height:100%;text-align:center;padding:24px;color:var(--muted);font-size:13.5px}
.route-guide{margin-top:14px;font-size:13px;line-height:1.6;color:#cfe0ff;
  white-space:pre-wrap;text-align:center}

/* 전체화면 지도 모드 */
body.map-full{overflow:hidden}
body.map-full .mapwrap{
  position:fixed;inset:0;z-index:200;padding:0;background:#05070f;
  display:flex;flex-direction:column
}
body.map-full .map-head{
  margin:0;padding:calc(12px + env(safe-area-inset-top,0px)) 16px 12px;
  background:rgba(5,7,15,.92);border-bottom:1px solid var(--line)
}
body.map-full #mapStage{
  flex:1;height:auto !important;border-radius:0;border:none;min-height:0
}
body.map-full .route-guide{
  margin:0;padding:12px 16px calc(12px + env(safe-area-inset-bottom,0px));
  background:rgba(5,7,15,.92);border-top:1px solid var(--line)
}

/* 확인 팝업 (해제 시) */
.modal-mask{
  position:fixed;inset:0;z-index:300;background:rgba(2,4,10,.72);
  display:none;align-items:center;justify-content:center;padding:24px
}
.modal-mask.show{display:flex}
.modal{
  width:100%;max-width:320px;background:var(--panel-solid);
  border:1px solid var(--line);border-radius:18px;padding:22px 20px;
  text-align:center;animation:noticepop .25s ease
}
.modal .m-title{font-size:16px;font-weight:800;margin-bottom:8px}
.modal .m-desc{font-size:13.5px;color:var(--muted);margin-bottom:20px;line-height:1.5}
.modal .m-btns{display:flex;gap:10px}
.modal button{flex:1;border:none;border-radius:12px;padding:13px;
  font-size:15px;font-weight:800;cursor:pointer}
.modal .m-no{background:#1b2741;color:#cfe0ff}
.modal .m-yes{background:#FF1B8D;color:#fff}

/* ── 5. 채팅 ─────────────────────────── */
.chat{background:transparent;padding:24px 0 0}
.chat .sec-title{padding:0 18px}
.chatbox{
  background:rgba(7,11,22,.55);border-top:1px solid var(--line);
  backdrop-filter:blur(2px);
  /* svh = 주소창 표시 기준의 작은 화면 높이(스크롤해도 변하지 않는 고정 단위).
     → 주소창이 접히고 펴져도 채팅창 높이가 흔들리거나 가려지지 않음. */
  height:52svh;min-height:320px;max-height:600px;display:flex;flex-direction:column
}
.msgs{flex:1;overflow-y:auto;padding:14px 14px 4px;display:flex;
  flex-direction:column;gap:9px;overscroll-behavior:contain}
.msg{max-width:82%;padding:9px 12px;border-radius:14px;font-size:14px;
  background:#13203a;align-self:flex-start;word-break:break-word}
.msg.mine{align-self:flex-end;background:#1d3358}
.msg .nm{font-size:11px;font-weight:800;margin-bottom:3px;opacity:.95}
.msg .tx{white-space:pre-wrap}
.msg.sys{align-self:center;background:transparent;color:var(--muted);
  font-size:12px;max-width:90%;text-align:center}
/* 공지 */
.notice{
  align-self:stretch;max-width:100%;
  background:linear-gradient(135deg,#3a0d2a,#13203a);
  border:1.5px solid var(--accent);border-radius:14px;
  padding:14px 15px;animation:noticepop .4s ease;
  box-shadow:0 0 22px rgba(0,229,255,.35)
}
.notice .hd{font-size:11px;letter-spacing:.25em;color:var(--accent);
  font-weight:800;margin-bottom:6px}
.notice .bd{font-size:19px;font-weight:800;line-height:1.4;white-space:pre-wrap}
@keyframes noticepop{0%{transform:scale(.9);opacity:0}100%{transform:scale(1);opacity:1}}

.composer{display:flex;gap:8px;padding:10px 12px;
  padding-bottom:calc(10px + var(--safe-b));
  border-top:1px solid var(--line);background:rgba(7,11,22,.55)}
.composer input{flex:1;border:1px solid var(--line);border-radius:22px;
  background:#0e1830;color:var(--ink);padding:12px 16px;font-size:15px;outline:none}
.composer input:focus{border-color:var(--accent)}
.composer button{border:none;border-radius:22px;background:var(--accent);
  color:#04101e;font-weight:800;padding:0 18px;font-size:15px;cursor:pointer}
.composer button:disabled{opacity:.4}

/* 채팅 안 플레이리스트 안내 메시지 */
.msg.play{align-self:stretch;max-width:100%;
  background:linear-gradient(135deg,#1a2a14,#13203a);
  border:1.5px solid #2EE600;border-radius:14px;padding:12px 14px;
  box-shadow:0 0 16px rgba(46,230,0,.25);animation:noticepop .4s ease}
.msg.play .hd{font-size:11px;letter-spacing:.2em;color:#9bf06a;font-weight:800;margin-bottom:5px}
.msg.play .bd{font-size:15px;font-weight:700;line-height:1.4}

/* 6. 공동 플레이리스트 (유튜브) */
.playlist{background:transparent;padding:22px 16px calc(28px + var(--safe-b))}
.pl-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.pl-head .sec-title{margin:0}
.pl-note{font-size:12.5px;color:var(--muted)}
.pl-tracks{display:flex;flex-direction:column;gap:10px}
.track{display:flex;align-items:center;gap:13px;
  padding:13px 14px;border-radius:14px;cursor:pointer;
  -webkit-tap-highlight-color:transparent;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  transition:background .12s ease,border-color .12s ease}
.track:active{background:rgba(255,255,255,.09)}
.track.on{border-color:#8C52FF;background:rgba(140,82,255,.14);
  box-shadow:0 0 16px rgba(140,82,255,.25)}
.tplay{flex:0 0 auto;width:46px;height:46px;border-radius:50%;
  border:none;cursor:pointer;font-size:17px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  color:#fff;background:#8C52FF;box-shadow:0 0 12px rgba(140,82,255,.45);
  transition:transform .08s ease}
.tplay:active{transform:scale(.92)}
.tplay.on{background:#FF007F;box-shadow:0 0 14px rgba(255,0,127,.5)}
.tinfo{min-width:0;flex:1}
.ttitle{font-size:14.5px;font-weight:700;color:#eaf1ff;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ttitle .tart{font-weight:500;color:var(--muted);font-size:12.5px}
.tdesc{margin-top:3px;font-size:12.5px;color:var(--muted);line-height:1.45}

.footer{text-align:center;color:var(--muted);font-size:11px;
  padding:18px 16px 8px}

/* ★ 테스트용 리셋 버튼 (최종 배포 시 삭제) */
.test-reset{text-align:center;padding:8px 16px calc(30px + var(--safe-b))}
.test-reset button{border:1px dashed #ff6b6b;border-radius:12px;
  background:rgba(255,107,107,.1);color:#ff9a9a;font-size:13px;font-weight:700;
  padding:11px 18px;cursor:pointer}
.test-reset button:active{transform:scale(.97)}
.test-reset p{margin:8px 0 0;font-size:10.5px;color:var(--muted)}

/* 토스트 */
.toast{position:fixed;left:50%;bottom:84px;transform:translateX(-50%) translateY(20px);
  background:#0e1830;border:1px solid var(--line);color:var(--ink);
  padding:11px 16px;border-radius:24px;font-size:13px;z-index:90;
  opacity:0;transition:.25s;pointer-events:none;max-width:90%;text-align:center}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}