/* 밤도서관 공통 스타일 [코어]. 다른 모듈은 css/<모듈>.css 를 따로 추가한다. */
:root{
  --bg:#0d0b09; --wood:#3b2416; --green:#1f5a3a; --light:#ffcf7a; --brass:#b08a4a;
  --glass:rgba(22,17,13,.46); --glass-strong:rgba(18,14,11,.78);
  --line:rgba(255,226,180,.16);
  --font:"Pretendard","Apple SD Gothic Neo","AppleSDGothicNeo","Noto Sans KR",sans-serif;
  --serif:"AppleMyungjo","Nanum Myeongjo","Noto Serif KR",serif;
  --safe-t:env(safe-area-inset-top,0px); --safe-b:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{width:100%;height:100%;overflow:hidden;background:var(--bg);font-family:var(--font);color:#fff;-webkit-font-smoothing:antialiased;
  user-select:none;-webkit-user-select:none;touch-action:manipulation;overscroll-behavior:none}
canvas#gl{position:fixed;inset:0;width:100%;height:100%;display:block;touch-action:none}
.ui{position:fixed;inset:0;pointer-events:none;z-index:5}
.ui .layer{position:absolute;inset:0;pointer-events:none}
.ui .layer > *, .ui .pe{pointer-events:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit}
.hidden{display:none !important}

/* 유리 패널 (외곽선 글자 금지, 그림자만) */
.glass{background:var(--glass);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);box-shadow:0 6px 22px rgba(0,0,0,.35)}
.glass-strong{background:var(--glass-strong);backdrop-filter:blur(20px) saturate(140%);-webkit-backdrop-filter:blur(20px) saturate(140%);
  border:1px solid var(--line);box-shadow:0 -10px 40px rgba(0,0,0,.45)}
.txt{color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.55)}
svg.ic{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 1px 2px rgba(0,0,0,.5));flex:none}

.pill{display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 15px;border-radius:999px;font-size:14px;font-weight:600;letter-spacing:-.2px;white-space:nowrap}
.pill .dot,.boot .dot{width:6px;height:6px;border-radius:50%;background:var(--light);box-shadow:0 0 8px var(--light);flex:none}
.round{width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center}
.round.on{background:rgba(255,207,122,.22);border-color:rgba(255,207,122,.45)}

.top{position:absolute;top:calc(14px + var(--safe-t));left:14px;right:14px;display:flex;justify-content:space-between;align-items:center;gap:8px}
.top .right{display:flex;gap:7px;align-items:center}
.top .pill.title{max-width:58vw;overflow:hidden;text-overflow:ellipsis}

.bottom{position:absolute;left:0;right:0;bottom:calc(22px + var(--safe-b));display:flex;justify-content:center;gap:10px;padding:0 14px}
.btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:108px;height:62px;border-radius:31px;font-size:14px;font-weight:600;letter-spacing:-.2px;color:#fff}
.btn svg.ic{width:21px;height:21px}
.btn.primary{background:rgba(255,207,122,.20);border-color:rgba(255,207,122,.42);box-shadow:0 0 24px rgba(255,190,90,.18),0 6px 22px rgba(0,0,0,.35)}
.btn:active,.round:active,.pill:active{transform:scale(.96)}
.btn[disabled]{opacity:.45}

/* 아래에서 올라오는 시트 */
.sheet{position:absolute;left:10px;right:10px;bottom:0;border-radius:24px 24px 0 0;padding:12px 18px calc(22px + var(--safe-b));
  transform:translateY(0);transition:transform .25s ease}
.sheet .handle{width:40px;height:4px;border-radius:2px;background:rgba(255,255,255,.28);margin:0 auto 12px}
.sheet h3{font-size:17px;font-weight:800;letter-spacing:-.3px;margin-bottom:12px}
.sheet .opts{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}
.opt{height:72px;border-radius:16px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:19px;font-weight:800;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);letter-spacing:-.4px}
.opt small{font-size:11.5px;font-weight:600;color:rgba(255,255,255,.65)}
.opt.gold{background:linear-gradient(180deg,rgba(255,207,122,.34),rgba(196,140,60,.26));border-color:rgba(255,207,122,.55)}
.sheet .cancel{margin-top:10px;width:100%;height:44px;border-radius:12px;font-size:14px;font-weight:600;color:rgba(255,255,255,.75);background:rgba(255,255,255,.05)}

/* 소리 패널 */
.panel{position:absolute;top:calc(60px + var(--safe-t));right:14px;width:236px;border-radius:18px;padding:14px 16px 10px}
.panel h4{font-size:13px;font-weight:700;color:rgba(255,220,160,.9);margin-bottom:8px;letter-spacing:-.2px}
.slider{display:flex;align-items:center;gap:10px;height:40px;font-size:13.5px;font-weight:600}
.slider span{width:46px;flex:none}
.slider input{flex:1;accent-color:#ffcf7a;height:28px}
.panel .note{font-size:11px;color:rgba(255,255,255,.5);margin-top:4px;line-height:1.4}

/* 토스트 */
.toast{position:absolute;left:50%;top:calc(64px + var(--safe-t));transform:translateX(-50%);max-width:88vw;padding:10px 16px;border-radius:14px;
  font-size:14px;font-weight:600;letter-spacing:-.2px;display:flex;gap:10px;align-items:center;animation:toastIn .25s ease}
.toast button{height:30px;padding:0 12px;border-radius:999px;background:rgba(255,207,122,.25);border:1px solid rgba(255,207,122,.5);font-size:13px;font-weight:700}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,-8px)}to{opacity:1;transform:translate(-50%,0)}}

/* 집중 타이머 */
.focus-pill{position:absolute;left:50%;top:calc(62px + var(--safe-t));transform:translateX(-50%);white-space:nowrap;display:flex;align-items:center;gap:10px;height:44px;padding:0 8px 0 16px;border-radius:999px;font-weight:700}
.focus-pill .time{font-size:20px;font-variant-numeric:tabular-nums;letter-spacing:.5px}
.focus-pill .lbl{font-size:12px;color:rgba(255,220,160,.9);font-weight:700}
.focus-pill button{white-space:nowrap;height:30px;padding:0 12px;border-radius:999px;background:rgba(255,255,255,.1);font-size:12.5px;font-weight:700}

/* 반응 */
.react-pop{position:absolute;display:flex;gap:8px;padding:7px;border-radius:999px;transform:translate(-50%,-100%)}
.react-pop button{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.08)}
.react-pop button svg.ic{width:24px;height:24px}
.react-pop .who{position:absolute;left:50%;top:-22px;transform:translateX(-50%);font-size:11.5px;font-weight:700;white-space:nowrap;text-shadow:0 1px 3px rgba(0,0,0,.8)}
.react-float{position:absolute;width:40px;height:40px;margin:-20px 0 0 -20px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(255,207,122,.25);border:1px solid rgba(255,207,122,.5);animation:floatUp 2.4s ease-out forwards}
.react-float svg.ic{width:22px;height:22px}
@keyframes floatUp{0%{opacity:0;transform:translateY(8px) scale(.6)}15%{opacity:1;transform:translateY(0) scale(1.05)}80%{opacity:1}100%{opacity:0;transform:translateY(-46px) scale(1)}}

/* 화면 저장 */
.shot{position:absolute;inset:0;background:rgba(0,0,0,.72);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:20px}
.shot img{max-width:78vw;max-height:66vh;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.6);user-select:auto;-webkit-user-select:auto;-webkit-touch-callout:default}
.shot p{font-size:13.5px;color:rgba(255,255,255,.8)}
.shot .row{display:flex;gap:10px}
.shot .row button,.shot .row a{height:44px;padding:0 20px;border-radius:999px;display:flex;align-items:center;font-size:14px;font-weight:700;text-decoration:none}

/* 로비 */
.lobby-card{position:absolute;left:10px;right:10px;bottom:0;border-radius:24px 24px 0 0;padding:14px 18px calc(16px + var(--safe-b))}
.lobby-card .nick{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.lobby-card .nick b{font-size:19px;font-weight:800;letter-spacing:-.4px}
.lobby-card .nick small{display:block;font-size:11.5px;color:rgba(255,220,160,.85);font-weight:700;margin-bottom:2px}
.lobby-card .row{display:flex;align-items:center;gap:10px;height:44px}
.lobby-card .row > span{width:40px;font-size:13px;font-weight:700;color:rgba(255,255,255,.7);flex:none}
.sw{width:34px;height:34px;border-radius:50%;border:2px solid rgba(255,255,255,.15);box-shadow:inset 0 -3px 6px rgba(0,0,0,.25)}
.sw.sel{border-color:#ffcf7a;box-shadow:0 0 0 2px rgba(255,207,122,.35),inset 0 -3px 6px rgba(0,0,0,.25)}
.lobby-card .sws{display:flex;gap:8px;flex-wrap:nowrap}
.toggle{height:34px;padding:0 14px;border-radius:999px;font-size:13px;font-weight:700;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);display:inline-flex;align-items:center;gap:6px}
.toggle.on{background:rgba(255,207,122,.22);border-color:rgba(255,207,122,.55)}
.enter{margin-top:12px;width:100%;height:54px;border-radius:16px;font-size:16px;font-weight:800;letter-spacing:-.3px;display:flex;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(180deg,rgba(255,207,122,.42),rgba(196,140,60,.34));border:1px solid rgba(255,207,122,.6);box-shadow:0 0 24px rgba(255,190,90,.18)}
.operator{margin-top:10px;font-size:11px;line-height:1.5;color:rgba(255,255,255,.62);text-align:center;letter-spacing:-.2px}
.operator a{color:rgba(255,220,160,.9);text-decoration:underline;text-underline-offset:2px}

/* 준비 중 */
.soon{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:24px;
  background:radial-gradient(ellipse at 50% 40%,rgba(255,190,100,.12),rgba(13,11,9,.94) 60%)}
.soon b{font-size:22px;font-weight:800;letter-spacing:-.4px}
.soon p{font-size:14px;color:rgba(255,255,255,.7);line-height:1.5}
.soon button{height:48px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:700}

/* 부팅 */
.boot{position:fixed;inset:0;z-index:20;display:flex;align-items:center;justify-content:center;background:var(--bg);transition:opacity .5s ease}
.boot-in{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:600;color:rgba(255,255,255,.75)}
.boot.gone{opacity:0;pointer-events:none}
.noscript{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;color:#fff}

/* 상단 바 아래 줄 (열람실 → 2층 라운지) */
.subtop{position:absolute;top:calc(60px + var(--safe-t));left:14px;display:flex;gap:7px}
.subtop .pill{height:32px;font-size:13px;padding:0 12px}
.subtop .pill svg.ic{width:16px;height:16px}

/* [QA 수정] 로비 카드 압축: 위쪽 3D(문·하늘)가 더 보이게 */
.lobby-card{padding:10px 16px calc(10px + var(--safe-b))}
.lobby-card .nick{margin-bottom:6px}
.lobby-card .nick b{font-size:17px}
.lobby-card .row{height:40px}
.lobby-card .sw{width:30px;height:30px}
.lobby-card .toggle{height:30px}
.enter{margin-top:8px;height:48px}
.operator{margin-top:7px;font-size:10.5px;line-height:1.45}
.operator a{white-space:nowrap}

/* [3차] 이름표 */
.tags{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.tag{position:absolute;left:0;top:0;transform-origin:50% 100%;display:flex;align-items:center;gap:4px;padding:2px 8px;border-radius:999px;white-space:nowrap;
  font-size:12px;font-weight:700;letter-spacing:-.2px;color:#fff;background:rgba(18,14,11,.55);border:1px solid rgba(255,226,180,.18);text-shadow:0 1px 2px rgba(0,0,0,.6)}
.tag b{font-size:10.5px;font-weight:900;color:#2a1a08;background:#ffcf7a;border-radius:999px;padding:0 5px;text-shadow:none}
.tag.me{border-color:rgba(255,207,122,.55)}
.tag.focus::after{content:"";width:6px;height:6px;border-radius:50%;background:#7fe0a0;box-shadow:0 0 6px #7fe0a0}
/* [3차] 첫 10초 안내 */
.move-hint{position:absolute;left:50%;bottom:calc(98px + var(--safe-b));transform:translateX(-50%);white-space:nowrap;padding:8px 14px;border-radius:999px;font-size:12.5px;font-weight:700;transition:opacity .6s}
.move-hint.gone{opacity:0;pointer-events:none}
/* [3차] 방문객 목록 */
.vis-sheet{max-height:78vh;overflow:auto}
.vis-list{display:flex;flex-direction:column;gap:6px;max-height:34vh;overflow:auto}
.vis-row{display:flex;align-items:center;gap:8px;height:38px;padding:0 12px;border-radius:12px;background:rgba(255,255,255,.05);font-size:14px;font-weight:600}
.vis-row .me{font-size:11px;font-weight:900;color:#2a1a08;background:#ffcf7a;border-radius:999px;padding:1px 7px;text-shadow:none}
.vis-row .n{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.vis-row .st{font-size:12px;color:rgba(255,255,255,.55)}
.vis-row .st.on{color:#7fe0a0}
.vis-nick{margin-top:14px}
.vis-nick label,.lobby-card .nick-lab{display:block;font-size:11.5px;color:rgba(255,220,160,.85);font-weight:700;margin-bottom:5px}
.nick-row{display:flex;gap:8px}
.nick-input{flex:1;min-width:0;height:42px;border-radius:12px;border:1px solid rgba(255,226,180,.25);background:rgba(255,255,255,.08);color:#fff;font:inherit;font-size:16px;font-weight:700;padding:0 12px;letter-spacing:-.3px;user-select:text;-webkit-user-select:text}
.nick-input:focus{outline:none;border-color:rgba(255,207,122,.7)}
.nick-sug{height:42px;padding:0 12px;border-radius:12px;font-size:13px;font-weight:700;white-space:nowrap}
.nick-msg{min-height:16px;font-size:12px;margin-top:4px;color:rgba(255,255,255,.6)}
.nick-msg.bad{color:#ffb4a0}
/* [3차] 음악 패널 */
.music-panel{width:286px;max-height:76vh;overflow:auto}
.mp-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.mp-head h4{margin:0}
.mp-sec{margin-top:6px}
.mp-sub{font-size:12px;font-weight:800;color:rgba(255,220,160,.9);margin:6px 0 4px}
.mp-now{font-size:13.5px;font-weight:700;margin-bottom:6px}
.mp-ctl{display:flex;gap:6px;margin-bottom:4px}
.mp-ctl .toggle{height:30px;padding:0 11px;font-size:12.5px}
.mp-list{display:flex;flex-direction:column;gap:4px;max-height:150px;overflow:auto;margin-top:4px}
.mp-track{text-align:left;padding:6px 10px;border-radius:10px;background:rgba(255,255,255,.05);display:flex;flex-direction:column}
.mp-track .t{font-size:13px;font-weight:700}
.mp-track .c{font-size:11px;color:rgba(255,255,255,.55)}
.mp-track.on{background:rgba(255,207,122,.18)}
.music-panel.muted .mp-sec{opacity:.4}
.note.credit{color:rgba(255,236,200,.7)}
.mp-modes{display:flex;gap:6px;margin-bottom:4px}
.mp-modes .toggle{flex:1;justify-content:center;height:32px;padding:0 8px;font-size:12.5px}
.mp-sec.dim{opacity:.55}
.ui .layer > .tags, .ui .layer > .tags *{pointer-events:none !important}
.lobby-card .nick-box{margin-bottom:4px}
.lobby-card .nick-input{height:40px;font-size:16px}
.lobby-card .nick-sug{height:40px}
.lobby-card .nick-msg{min-height:14px;font-size:11.5px;margin-top:3px}
/* [4차] 이름표 묶음 + 공부 책 한 줄 */
.tagw{position:absolute;left:0;top:0;transform-origin:50% 100%;display:flex;flex-direction:column;align-items:center;gap:2px}
.tagw .tag{position:static;transform:none}
.tag-sub{display:flex;align-items:center;gap:3px;max-width:150px;padding:1px 7px;border-radius:999px;background:rgba(18,14,11,.5);font-size:10.5px;font-weight:700;color:rgba(255,236,200,.92);white-space:nowrap;text-shadow:0 1px 2px rgba(0,0,0,.6)}
.tag-sub span{overflow:hidden;text-overflow:ellipsis}
.tag-sub svg{width:11px;height:11px;fill:none;stroke:#ffcf7a;stroke-width:2;flex:none}
.desk-bubble{position:absolute;transform:translate(-50%,-100%);max-width:78vw;padding:9px 13px;border-radius:14px;font-size:13.5px;font-weight:700;line-height:1.4;animation:toastIn .2s ease}

/* [카메라 수정] 장면 안에 또 넣은 전체 화면 층(.layer)은 터치를 통과시킨다 (자식만 받음) */
.ui .layer > .layer{pointer-events:none}

/* [6차] 이름표 위 집중 시간 */
.tagw .tag-focus{margin:0 auto 3px;width:max-content;padding:2px 8px 2px 7px;border-radius:9px;font:700 11.5px/1.3 ui-monospace,"SF Mono",Menlo,monospace;letter-spacing:-.1px;color:#ffe2a8;background:rgba(40,24,6,.72);box-shadow:0 1px 4px rgba(0,0,0,.45);text-shadow:0 1px 2px rgba(0,0,0,.6)}
.tagw .tag-focus::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:#ffc45c;margin-right:5px;vertical-align:1px;box-shadow:0 0 5px #ffb43c}

/* [6차] 방문객 시트 랭킹 탭 */
.vis-tabs{display:flex;gap:6px;margin:4px 0 10px}
.vis-tabs button{flex:1;height:36px;border-radius:11px;font-size:14px;font-weight:700;color:rgba(255,255,255,.66);background:rgba(255,255,255,.06)}
.vis-tabs button.on{color:#2a1906;background:linear-gradient(180deg,#f3d48e,#d7a95a)}
.vis-rank .rk-me{padding:10px 12px;border-radius:14px;background:rgba(255,190,90,.1);margin-bottom:8px}
.vis-rank .rk-big{font-size:17px;font-weight:800;color:#ffe0a6}
.vis-rank .rk-sub,.vis-rank .rk-tot{font-size:13px;color:rgba(255,255,255,.7);margin-top:3px}
.vis-rank .rk-tot{margin:0 2px 6px}
.vis-rank .rk-n{width:22px;font-weight:800;color:#ffc45c;font-variant-numeric:tabular-nums}
.vis-rank p.empty{padding:14px 2px;color:rgba(255,255,255,.75);font-size:14px}
/* [6차] 「아직 공부 중이세요?」 */
.still-wrap{position:absolute;inset:0;z-index:60;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.45);padding:20px}
.still{width:min(360px,100%);border-radius:22px;padding:20px 18px 14px;text-align:center}
.still h3{font-size:19px;font-weight:800;margin-bottom:6px}
.still p{font-size:14px;line-height:1.5;color:rgba(255,255,255,.82)}
.still p.still-left{font-size:12.5px;color:rgba(255,220,160,.8);margin-top:6px;font-variant-numeric:tabular-nums}
.still .cancel{margin-top:8px;width:100%;height:42px;border-radius:12px;font-size:14px;font-weight:600;color:rgba(255,255,255,.75);background:rgba(255,255,255,.05)}

/* [7차] 자리 비움 (연결 끊김) */
.tagw .tag-away{margin:0 auto 3px;width:max-content;padding:2px 8px;border-radius:9px;font-size:11px;font-weight:700;color:rgba(255,255,255,.82);background:rgba(30,30,36,.7);box-shadow:0 1px 4px rgba(0,0,0,.4)}
.tagw.away .tag{opacity:.6}