/* ============================================================
   비주품질 (BIJU_BAND)
   - 모바일 우선, 미디어쿼리로 PC(사이드바)↔모바일(하단탭바) 분기
   ============================================================ */
:root{
  --primary:#0f766e; --primary-600:#0d9488; --primary-700:#115e59;
  --accent:#f59e0b; --danger:#ef4444;
  --bg:#eef2f4; --surface:#ffffff; --surface-2:#f8fafb;
  --text:#1f2937; --muted:#6b7280; --border:#e5e7eb;
  --sidebar:#0f172a; --sidebar-2:#1e293b; --sidebar-text:#cbd5e1;
  --shadow:0 1px 3px rgba(16,24,40,.08),0 1px 2px rgba(16,24,40,.04);
  --shadow-lg:0 10px 30px rgba(16,24,40,.12);
  --radius:14px; --radius-sm:10px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Pretendard","Apple SD Gothic Neo","Malgun Gothic",system-ui,-apple-system,sans-serif;
  background:var(--bg); color:var(--text); -webkit-font-smoothing:antialiased;
  font-size:15px; line-height:1.5;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
svg{width:22px;height:22px;flex:none}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#c7d0d6;border-radius:8px;border:2px solid var(--bg)}

/* ---------- 공통 컴포넌트 ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);background:var(--surface);
  color:var(--text);padding:9px 16px;border-radius:10px;font-weight:600;font-size:14px;transition:.15s}
.btn:hover{background:var(--surface-2)}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-700)}
.btn-danger{color:var(--danger);border-color:#f3c7c7}
.btn-danger:hover{background:#fdeaea}
.btn-sm{padding:6px 11px;font-size:13px;border-radius:8px}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:700}
.badge-notice{background:#fff7e6;color:#b45309}
.badge-board{background:#e6f5f3;color:var(--primary-700)}
.badge-admin{background:#eef2ff;color:#4338ca}
.pill{background:var(--surface-2);border:1px solid var(--border);border-radius:999px;padding:5px 12px;font-size:13px;font-weight:600;color:var(--muted)}
input,textarea,select{font-family:inherit;font-size:15px;width:100%;padding:11px 13px;border:1px solid var(--border);
  border-radius:10px;background:var(--surface);color:var(--text);outline:none;transition:.15s}
input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(15,118,110,.12)}
label{font-weight:600;font-size:13px;color:#374151;display:block;margin-bottom:6px}
.muted{color:var(--muted)}
.empty{text-align:center;color:var(--muted);padding:48px 16px}
.empty .big{font-size:40px;margin-bottom:8px}

/* ============================================================
   레이아웃 (모바일 기본)
   ============================================================ */
.app-shell{min-height:100vh}
.sidebar,.rail{display:none}
.topbar{
  position:sticky;top:0;z-index:30;height:54px;display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;background:var(--primary);color:#fff;
  padding-top:env(safe-area-inset-top);height:calc(54px + env(safe-area-inset-top));
}
.topbar-title{font-weight:800;font-size:18px;letter-spacing:-.3px}
.topbar-avatar{width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.22);
  display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff}
.main{padding:14px 14px calc(86px + env(safe-area-inset-bottom));max-width:720px;margin:0 auto}

/* 모바일 하단 탭바 */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:40;display:flex;align-items:center;justify-content:space-around;
  background:var(--surface);border-top:1px solid var(--border);
  height:calc(62px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -2px 14px rgba(16,24,40,.06);
}
.tabbar a{display:flex;flex-direction:column;align-items:center;gap:3px;color:var(--muted);font-size:11px;font-weight:600;flex:1}
.tabbar a svg{width:24px;height:24px}
.tabbar a.active{color:var(--primary)}
.tab-fab{
  width:54px;height:54px;border-radius:50%;background:var(--primary);color:#fff!important;
  display:flex!important;align-items:center;justify-content:center;font-size:30px;font-weight:300;
  margin-top:-26px;box-shadow:0 6px 16px rgba(15,118,110,.45);flex:none!important;line-height:1
}

/* ============================================================
   데스크톱 (>=900px) : 사이드바 + 메인 (+우측레일 >=1200)
   ============================================================ */
@media(min-width:900px){
  .topbar,.tabbar{display:none}
  .app-shell{display:grid;grid-template-columns:248px minmax(0,1fr);min-height:100vh;max-width:1480px;margin:0 auto}
  .main{grid-column:2;max-width:none;padding:26px 30px 60px;width:100%}

  .sidebar{
    display:flex;flex-direction:column;grid-column:1;position:sticky;top:0;height:100vh;
    background:var(--sidebar);color:var(--sidebar-text);padding:20px 14px;
  }
  .brand{display:flex;align-items:center;gap:11px;padding:8px 10px 20px;color:#fff}
  .brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--primary-600),var(--primary-700));
    display:flex;align-items:center;justify-content:center;font-weight:800;font-size:19px}
  .brand-name{font-size:19px;font-weight:800;letter-spacing:-.4px}
  .side-nav{display:flex;flex-direction:column;gap:3px;margin-top:6px}
  .side-nav a{display:flex;align-items:center;gap:12px;padding:11px 13px;border-radius:11px;
    color:var(--sidebar-text);font-weight:600;font-size:15px;transition:.15s}
  .side-nav a:hover{background:var(--sidebar-2);color:#fff}
  .side-nav a.active{background:var(--primary);color:#fff}
  .side-nav a svg{width:21px;height:21px}
  .side-write{margin:18px 4px 0;display:flex;align-items:center;justify-content:center;gap:6px;
    background:var(--primary);color:#fff;padding:12px;border-radius:12px;font-weight:700;font-size:15px;transition:.15s}
  .side-write:hover{background:var(--primary-700)}
  .side-footer{margin-top:auto;display:flex;align-items:center;gap:8px;padding-top:16px;border-top:1px solid var(--sidebar-2)}
  .side-user{display:flex;align-items:center;gap:10px;padding:9px;border-radius:11px;flex:1;color:#fff}
  .side-user:hover,.side-user.active{background:var(--sidebar-2)}
  .side-user .avatar{width:34px;height:34px;border-radius:50%;background:var(--primary-600);
    display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;flex:none}
  .side-user-name{font-weight:700;font-size:14px;line-height:1.2}
  .side-user-name em{display:block;font-style:normal;font-size:11px;color:var(--accent);font-weight:600}
  .side-logout{padding:10px;border-radius:11px;color:var(--sidebar-text)}
  .side-logout:hover{background:var(--sidebar-2);color:#fff}

  .rail{display:none}
}
@media(min-width:1200px){
  .app-shell{grid-template-columns:248px minmax(0,1fr) 300px}
  .main{grid-column:2}
  .rail{display:block;grid-column:3;position:sticky;top:0;height:100vh;overflow-y:auto;padding:26px 22px 40px}
}

/* ============================================================
   페이지 헤더 (데스크톱에서만 큰 제목)
   ============================================================ */
.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;gap:12px;flex-wrap:wrap}
.page-head h1{font-size:24px;font-weight:800;margin:0;letter-spacing:-.5px}
.page-head .sub{color:var(--muted);font-size:14px;margin-top:2px}
@media(max-width:899px){.page-head h1{font-size:20px}}

/* 게시판 탭 (모바일/공통) */
.board-tabs{display:flex;gap:8px;overflow-x:auto;padding-bottom:10px;margin-bottom:6px;-webkit-overflow-scrolling:touch}
.board-tabs a{white-space:nowrap;padding:8px 15px;border-radius:999px;background:var(--surface);
  border:1px solid var(--border);font-weight:600;font-size:14px;color:var(--muted)}
.board-tabs a.active{background:var(--primary);border-color:var(--primary);color:#fff}

/* ---------- 글 목록 ---------- */
.post-list{display:flex;flex-direction:column;gap:12px}
.post-item{display:block;padding:16px 18px}
.post-item:hover{box-shadow:var(--shadow-lg)}
.post-item .top{display:flex;align-items:center;gap:8px;margin-bottom:7px;flex-wrap:wrap}
.post-item .title{font-size:16px;font-weight:700;margin:0 0 5px;letter-spacing:-.3px;word-break:break-word}
.post-item .excerpt{color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-item .meta{display:flex;align-items:center;gap:12px;margin-top:11px;color:var(--muted);font-size:13px;flex-wrap:wrap}
.post-item .meta .who{font-weight:600;color:#374151}
.post-thumbs{display:flex;gap:6px;margin-top:10px}
.post-thumbs img{width:64px;height:64px;object-fit:cover;border-radius:8px;border:1px solid var(--border)}
.meta-dot{width:3px;height:3px;border-radius:50%;background:#cbd5e1}

/* ---------- 글 상세 ---------- */
.post-detail .head{display:flex;flex-direction:column;gap:10px;padding:20px 20px 16px;border-bottom:1px solid var(--border)}
.post-detail h1{font-size:22px;font-weight:800;margin:0;letter-spacing:-.4px;word-break:break-word}
.post-detail .byline{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px}
.post-detail .body{padding:20px;white-space:pre-wrap;word-break:break-word;font-size:15.5px;line-height:1.75;min-height:60px}
.post-detail .imgs{display:flex;flex-direction:column;gap:10px;padding:0 20px 16px}
.post-detail .imgs img{width:100%;border-radius:12px;border:1px solid var(--border);cursor:zoom-in}

/* 파일 드래그 앤 드롭 활성 상태 */
.file-drop.drag{border-color:var(--primary);background:#e6f5f3;color:var(--primary-700)}

/* 이미지 라이트박스 (확대/축소) */
.lightbox{position:fixed;inset:0;z-index:300;background:rgba(0,0,0,.92);display:flex;align-items:center;justify-content:center;overflow:hidden}
.lightbox img{max-width:94vw;max-height:88vh;transform-origin:center;transition:transform .12s ease;user-select:none;-webkit-user-drag:none}
.lightbox .lb-close{position:absolute;top:14px;right:16px;width:44px;height:44px;border-radius:50%;border:none;background:rgba(255,255,255,.16);color:#fff;font-size:26px;line-height:1;cursor:pointer}
.lightbox .lb-close:hover{background:rgba(255,255,255,.3)}
.lightbox .lb-zoom{position:absolute;bottom:calc(24px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);display:flex;gap:10px}
.lightbox .lb-zoom button{width:48px;height:48px;border-radius:50%;border:none;background:rgba(255,255,255,.16);color:#fff;font-size:22px;cursor:pointer}
.lightbox .lb-zoom button:hover{background:rgba(255,255,255,.3)}
.attach{display:flex;flex-direction:column;gap:8px;padding:0 20px 18px}
.attach a{display:flex;align-items:center;gap:9px;padding:11px 14px;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;font-weight:600;font-size:14px}
.post-actions{display:flex;gap:8px;padding:0 20px 18px;flex-wrap:wrap}

/* ---------- 댓글 ---------- */
.comments{margin-top:14px}
.comments h3{font-size:15px;margin:0 0 12px;font-weight:700}
.comment{display:flex;gap:11px;padding:13px 16px;border-bottom:1px solid var(--border)}
.comment:last-child{border-bottom:none}
.comment .avatar{width:36px;height:36px;border-radius:50%;background:var(--primary-600);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;flex:none}
.comment .c-body{flex:1;min-width:0}
.comment .c-top{display:flex;align-items:center;gap:8px;margin-bottom:3px}
.comment .c-name{font-weight:700;font-size:14px}
.comment .c-time{color:var(--muted);font-size:12px}
.comment .c-text{font-size:14.5px;white-space:pre-wrap;word-break:break-word}
.comment .c-del{margin-left:auto;color:var(--muted);font-size:12px;background:none;border:none}
.comment-form{display:flex;gap:8px;padding:14px 16px;position:sticky;bottom:calc(62px + env(safe-area-inset-bottom));background:var(--surface);border-top:1px solid var(--border)}
@media(min-width:900px){.comment-form{bottom:0}}
.comment-form input{flex:1}

/* ---------- 글쓰기 ---------- */
.form-wrap{display:flex;flex-direction:column;gap:16px;padding:20px}
.form-wrap textarea{min-height:240px;resize:vertical;line-height:1.7}
.form-row{display:flex;gap:12px;flex-wrap:wrap}
.form-row>div{flex:1;min-width:160px}
.check{display:flex;align-items:center;gap:8px;font-weight:600;font-size:14px}
.check input{width:auto}
.file-drop{border:1.5px dashed var(--border);border-radius:12px;padding:18px;text-align:center;color:var(--muted);font-size:14px;background:var(--surface-2)}
.file-names{font-size:13px;color:var(--primary-700);margin-top:8px;font-weight:600}

/* ---------- 채팅 ---------- */
.chat-wrap{display:flex;flex-direction:column;
  height:calc(100vh - 54px - 62px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
  height:calc(100dvh - 54px - 62px - env(safe-area-inset-top) - env(safe-area-inset-bottom))}
/* 모바일: 채팅 페이지는 main 패딩 제거 + 페이지 스크롤 차단 → 입력창이 항상 탭바 바로 위에 고정.
   실제 높이는 chat.js 가 visualViewport 기준으로 정확히 지정한다(:has/dvh 미지원 기기 대비). */
@media(max-width:899px){
  body.chat-page{overflow:hidden}
  body.chat-page main{padding:0;max-width:none}
}
@media(min-width:900px){.chat-wrap{height:calc(100vh - 52px);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--surface)}}
.chat-head{padding:14px 18px;border-bottom:1px solid var(--border);font-weight:700;display:flex;align-items:center;gap:8px;background:var(--surface)}
.chat-msgs{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px;background:var(--surface-2)}
.msg{display:flex;gap:9px;max-width:80%}
.msg .avatar{width:34px;height:34px;border-radius:50%;background:#94a3b8;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex:none;font-size:14px}
.msg .bubble{background:var(--surface);border:1px solid var(--border);padding:9px 13px;border-radius:14px;border-top-left-radius:4px}
.msg .who{font-size:12px;color:var(--muted);font-weight:600;margin-bottom:3px}
.msg .text{font-size:14.5px;white-space:pre-wrap;word-break:break-word}
.msg .t{font-size:11px;color:var(--muted);align-self:flex-end}
.msg.mine{align-self:flex-end;flex-direction:row-reverse}
.msg.mine .bubble{background:var(--primary);color:#fff;border-color:var(--primary);border-radius:14px;border-top-right-radius:4px}
.msg.mine .avatar{display:none}
.msg.mine .who{display:none}
.chat-input{display:flex;gap:8px;padding:12px;background:var(--surface);border-top:1px solid var(--border)}
.chat-input input{flex:1}

/* ---------- 멤버 ---------- */
.member-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.member-card{display:flex;flex-direction:column;align-items:center;gap:8px;padding:20px 12px;text-align:center}
.member-card .avatar{width:54px;height:54px;border-radius:50%;background:var(--primary-600);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:22px}
.member-card .nm{font-weight:700}

/* ---------- 관리자 ---------- */
.admin-sec{margin-bottom:26px}
.admin-sec h2{font-size:17px;font-weight:800;margin:0 0 12px;display:flex;align-items:center;gap:8px}
.row-item{display:flex;align-items:center;gap:12px;padding:13px 16px;border-bottom:1px solid var(--border)}
.row-item:last-child{border-bottom:none}
.row-item .avatar{width:38px;height:38px;border-radius:50%;background:var(--primary-600);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex:none}
.row-item .grow{flex:1;min-width:0}
.row-item .nm{font-weight:700}
.row-item .actions{display:flex;gap:6px;flex-wrap:wrap}
.invite-box{display:flex;gap:8px;align-items:center;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;padding:10px 12px;margin-bottom:8px}
.invite-box code{flex:1;font-size:12.5px;color:var(--primary-700);word-break:break-all;font-family:ui-monospace,monospace}
.invite-box.used{opacity:.5}

/* ---------- 우측 레일 ---------- */
.rail .rail-card{margin-bottom:18px;padding:16px 18px}
.rail h3{font-size:14px;font-weight:800;margin:0 0 12px;color:#374151}
.rail .notice-row{display:block;padding:9px 0;border-bottom:1px solid var(--border);font-size:14px;font-weight:600}
.rail .notice-row:last-child{border-bottom:none}
.rail .stat{display:flex;align-items:baseline;gap:8px}
.rail .stat b{font-size:30px;color:var(--primary)}

/* ---------- 토스트 / 푸쉬 배너 ---------- */
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:90px;z-index:90;background:#111827;color:#fff;
  padding:12px 18px;border-radius:12px;font-size:14px;font-weight:600;box-shadow:var(--shadow-lg);opacity:0;transition:.25s;pointer-events:none}
.toast.show{opacity:1;bottom:100px}
@media(min-width:900px){.toast{bottom:30px}.toast.show{bottom:40px}}
.push-banner{display:none;align-items:center;gap:12px;background:linear-gradient(135deg,#0d9488,#0f766e);color:#fff;
  padding:13px 16px;border-radius:14px;margin-bottom:14px;box-shadow:var(--shadow)}
.push-banner.show{display:flex}
.push-banner .pb-txt{flex:1;font-size:13.5px;font-weight:600;line-height:1.4}
.push-banner button{background:#fff;color:var(--primary-700);border:none;padding:8px 14px;border-radius:9px;font-weight:700;font-size:13px;white-space:nowrap}
.push-banner .pb-close{background:transparent;color:#fff;font-size:18px;padding:4px 8px}

/* ============================================================
   인증 외 화면 (login/pending/invite) — 중앙 카드
   ============================================================ */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;
  background:linear-gradient(160deg,#0f766e 0%,#115e59 60%,#0f172a 100%)}
.auth-card{width:100%;max-width:400px;background:var(--surface);border-radius:20px;box-shadow:var(--shadow-lg);padding:34px 28px;text-align:center}
.auth-logo{width:64px;height:64px;border-radius:18px;background:linear-gradient(135deg,var(--primary-600),var(--primary-700));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:30px;font-weight:800;margin:0 auto 18px}
.auth-card h1{font-size:23px;margin:0 0 6px;letter-spacing:-.5px}
.auth-card p{color:var(--muted);font-size:14.5px;margin:0 0 22px;line-height:1.6}
.auth-card form{display:flex;flex-direction:column;gap:12px}
.auth-card .btn-primary{justify-content:center;padding:13px;font-size:15px}
.auth-note{margin-top:18px;font-size:13px;color:var(--muted)}
.ios-tip{margin-top:16px;background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:12px 14px;font-size:13px;color:#374151;text-align:left;line-height:1.6;display:none}
.ios-tip.show{display:block}

/* ---------- 설치(홈 화면 추가) 모달 ---------- */
.modal-overlay{position:fixed;inset:0;z-index:200;background:rgba(15,23,42,.5);
  display:none;align-items:flex-end;justify-content:center;padding:0}
.modal-overlay.show{display:flex}
@media(min-width:900px){.modal-overlay{align-items:center}}
.modal-card{background:var(--surface);width:100%;max-width:420px;border-radius:20px 20px 0 0;
  padding:24px 22px calc(22px + env(safe-area-inset-bottom));box-shadow:var(--shadow-lg);
  animation:slideUp .25s ease}
@media(min-width:900px){.modal-card{border-radius:20px}}
@keyframes slideUp{from{transform:translateY(40px);opacity:.6}to{transform:translateY(0);opacity:1}}
.modal-card .m-icon{width:64px;height:64px;border-radius:16px;display:block;margin:0 auto 14px;box-shadow:var(--shadow)}
.modal-card h3{text-align:center;font-size:18px;margin:0 0 6px;letter-spacing:-.3px}
.modal-card p{text-align:center;color:var(--muted);font-size:14px;margin:0 0 18px;line-height:1.6}
.modal-card .m-steps{background:var(--surface-2);border:1px solid var(--border);border-radius:12px;
  padding:14px 16px;font-size:13.5px;line-height:1.9;color:#374151;margin-bottom:16px}
.modal-card .m-steps b{color:var(--primary-700)}
.modal-card .m-actions{display:flex;gap:8px}
.modal-card .m-actions button{flex:1;justify-content:center;padding:13px;font-size:15px}
.modal-card .copy-box{display:flex;gap:6px;margin-bottom:14px}
.modal-card .copy-box input{flex:1;font-size:12.5px;padding:10px 11px;background:var(--surface-2);color:var(--primary-700)}
.modal-card .copy-box button{white-space:nowrap;padding:10px 14px}