:root{
  --bg:#0e1a24; --panel:#ffffff; --ink:#17242e; --sub:#5b6b78;
  --accent:#2f8a5a; --accent2:#f2a33c; --danger:#d2453b;
  --pip:#dfe6ea; --pip-on:#f2c14e; --radius:16px;
  --tap:48px;   /* 터치 타겟 하한 — 44px 기준 위로 여유 */
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;overflow:hidden;background:var(--bg);
  font-family:system-ui,-apple-system,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;color:var(--ink);
  -webkit-text-size-adjust:100%;touch-action:none;overscroll-behavior:none}
#c{position:fixed;inset:0;width:100%;height:100%;display:block}

.screen{position:fixed;inset:0;display:grid;place-items:center;padding:16px;z-index:5}
/* 🔴 [hidden] 은 UA 스타일이라 .screen 의 display:grid 에 진다 — 명시적으로 이겨 줘야 한다.
   빠뜨리면 «모든 화면이 동시에» 그려진다(실측: 메뉴·정보 패널이 게임 위에 겹쳐 있었다). */
.screen[hidden],#hud-root[hidden],#touch[hidden]{display:none!important}
#play{background:none;pointer-events:none}
#play #touch{pointer-events:auto}
.panel{background:var(--panel);border-radius:22px;padding:24px;max-width:520px;width:100%;
  box-shadow:0 18px 50px rgba(0,0,0,.35);max-height:92vh;overflow:auto}
h1{margin:0 0 4px;font-size:34px;letter-spacing:-.02em}
h2{margin:0 0 12px;font-size:24px}
.tag{margin:0 0 18px;color:var(--sub);font-size:15px;line-height:1.5}
.modes{display:grid;gap:10px}
button{font:inherit;font-weight:700;border:0;border-radius:var(--radius);padding:0 18px;
  min-height:var(--tap);background:#eef2f5;color:var(--ink);cursor:pointer;transition:transform .06s,filter .15s}
button:hover{filter:brightness(.96)} button:active{transform:translateY(1px)}
button.big{background:var(--accent);color:#fff;min-height:58px;font-size:19px}
button.ghost{background:#fff;border:2px solid var(--accent);color:var(--accent);width:100%;margin-top:10px}
.opts{display:flex;gap:12px;flex-wrap:wrap;margin:16px 0 12px;align-items:center}
.opts label{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--sub)}
select{font:inherit;min-height:var(--tap);border-radius:12px;border:1px solid #d6dee4;padding:0 10px;background:#fff}
.chk input{width:22px;height:22px}
.subnav{display:flex;gap:8px}.subnav button{flex:1}
.stats{margin:14px 0 0;color:var(--sub);font-size:13px;text-align:center}
.row{display:flex;gap:10px;margin-top:14px}.row .big{flex:2}.row button{flex:1}
.info{font-size:14px;line-height:1.7;color:var(--sub)}
kbd{background:#eef2f5;border-radius:6px;padding:1px 7px;font-size:12px;border:1px solid #d6dee4}

/* ── HUD */
#hud-root{position:fixed;inset:0;z-index:4;pointer-events:none}
#hud-root.split .hud{height:50%}
#hud-root.split .hud:nth-child(2){top:50%}
.hud{position:absolute;left:0;right:0;top:0;height:100%;padding:14px;
  display:flex;flex-direction:column;justify-content:space-between;color:#fff;
  text-shadow:0 2px 6px rgba(0,0,0,.55)}
#hud-root.split .hud{border-top:2px solid rgba(255,255,255,.5)}
#hud-root.split .hud:first-child{border-top:0}
.hud-top{display:flex;justify-content:space-between;align-items:flex-start}
.clock{font-size:34px;font-weight:800;line-height:1}
.clock span{font-size:14px;margin-left:2px;opacity:.85}
.grade{text-align:center;transition:transform .12s ease-out;transform-origin:50% 0}.grade i{display:block;font-style:normal;font-size:26px;font-weight:800}
.grade em{font-style:normal;font-size:16px;font-weight:700;opacity:.95}
.stars{font-size:18px;font-weight:800}
.hud-bottom{display:flex;flex-direction:column;gap:8px;align-items:center}
.pips{display:flex;gap:7px}
.pip{width:22px;height:22px;border-radius:50%;background:rgba(255,255,255,.22);
  border:2px solid rgba(255,255,255,.45)}
.pip.on{background:var(--pip-on);border-color:#fff;box-shadow:0 0 10px rgba(242,193,78,.8)}
.pip.pending{border-style:dashed;border-color:rgba(242,193,78,.9)}
.rings{display:flex;gap:8px}
.ring{position:relative;font-size:12px;font-weight:700;background:rgba(0,0,0,.35);
  border-radius:999px;padding:5px 12px;overflow:hidden}
.ring i{position:absolute;left:0;top:0;bottom:0;background:rgba(242,163,60,.55);z-index:-1}
.ring.dash{background:linear-gradient(90deg,rgba(47,138,90,.75) var(--f,100%),rgba(0,0,0,.35) var(--f,100%))}
.ring.dash.cool{opacity:.6}

/* 비차단 퀴즈 카드 — 조작을 막지 않는다. 화면 구석에 뜬다. */
.quiz{position:absolute;right:14px;top:64px;width:min(300px,52vw);background:rgba(255,255,255,.96);
  color:var(--ink);border-radius:16px;padding:12px;text-shadow:none;pointer-events:auto;
  box-shadow:0 10px 30px rgba(0,0,0,.3);animation:pop .18s ease-out}
@keyframes pop{from{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}
.quiz p{margin:0 0 8px;font-size:19px;font-weight:800;text-align:center}
.qchoices{display:grid;gap:6px}
.qc{display:flex;align-items:center;gap:8px;background:#eef2f5;min-height:var(--tap);
  border-radius:12px;font-size:16px;justify-content:flex-start;padding:0 12px}
.qc kbd{flex:0 0 auto}
.qbar{height:5px;background:#e3e9ed;border-radius:999px;margin-top:8px;overflow:hidden}
.qbar i{display:block;height:100%;background:var(--accent2);width:100%;transition:width .1s linear}
.toast{position:absolute;left:50%;top:38%;transform:translateX(-50%);background:rgba(0,0,0,.72);
  padding:10px 18px;border-radius:999px;font-weight:800;font-size:16px}

/* ── 터치 */
#touch{display:none}
@media (pointer:coarse){
  #touch{display:block}
  #stick{position:fixed;left:26px;bottom:26px;width:124px;height:124px;border-radius:50%;
    background:rgba(255,255,255,.16);border:2px solid rgba(255,255,255,.4);z-index:6;touch-action:none}
  #knob{position:absolute;left:50%;top:50%;width:56px;height:56px;margin:-28px 0 0 -28px;border-radius:50%;
    background:rgba(255,255,255,.75)}
  #dashbtn{position:fixed;right:26px;bottom:34px;width:96px;height:96px;border-radius:50%;
    background:rgba(242,163,60,.9);color:#fff;font-size:15px;z-index:6}
  .quiz{width:min(300px,64vw)}
}
.rt{width:100%;border-collapse:collapse;font-size:14px}
.rt th,.rt td{padding:7px 6px;border-bottom:1px solid #eef2f5;text-align:center}
.rt th{color:var(--sub);font-weight:600;font-size:12px}
.best{color:var(--sub);font-size:13px;text-align:center;margin:10px 0 0}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}
.bcard{background:#f4f7f9;border-radius:14px;padding:10px 6px;text-align:center}
.bcard.off{opacity:.45}.bicon{font-size:24px}.bcard b{display:block;font-size:13px}
.bcard em{font-style:normal;font-size:11px;color:var(--sub)}
.rank{margin:0;padding-left:22px}.rank li{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px solid #eef2f5}
.warn{color:var(--sub);font-size:14px;line-height:1.6}
@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}

#room-code{font:inherit;min-height:var(--tap);border-radius:12px;border:1px solid #d6dee4;padding:0 12px;width:120px;text-transform:uppercase;letter-spacing:.12em}
#lobby-code{font-size:26px;letter-spacing:.18em}
.rt tr.me{background:#fff7e6;font-weight:800}

/* 조작 안내 — 판 시작에 한 번. 아무 키나 누르면 닫힌다. */
#hint{position:fixed;inset:0;z-index:7;display:grid;place-items:center;background:rgba(8,20,28,.55);
  backdrop-filter:blur(2px);animation:fade .2s ease-out}
#hint[hidden]{display:none!important}
@keyframes fade{from{opacity:0}to{opacity:1}}
.hint-box{background:#fff;border-radius:20px;padding:22px 26px;max-width:min(460px,92vw);text-align:center;
  box-shadow:0 20px 60px rgba(0,0,0,.4)}
.hint-box h3{margin:0 0 12px;font-size:20px;color:var(--accent)}
.hint-box p{margin:7px 0;font-size:15px;color:var(--ink);line-height:1.6}
.hint-box em{display:block;margin-top:14px;font-style:normal;font-size:13px;color:var(--sub)}
.hint-box kbd{margin:0 1px}
#loadbar{position:fixed;left:0;right:0;bottom:0;height:26px;background:rgba(8,20,28,.7);z-index:8;
  display:flex;align-items:center;gap:8px;padding:0 12px}
#loadbar[hidden]{display:none!important}
#loadbar i{display:block;height:5px;background:var(--accent2);border-radius:999px;width:0;flex:0 0 auto;min-width:2px;
  transition:width .2s;max-width:60vw}
#loadbar span{color:#fff;font-size:12px;opacity:.85}

/* 실시간 순위 — 혼자 모드의 «경쟁»을 화면에 세운다 */
/* 🔴 오른쪽 위는 퀴즈 카드 자리다 — 처음에 겹쳐 두어 순위표가 카드 밑에 깔렸다(캡처로 확인). */
.board{position:absolute;left:14px;top:82px;margin:0;padding:6px;list-style:none;
  background:rgba(12,20,16,.42);border-radius:12px;backdrop-filter:blur(6px);min-width:132px}
.board li{display:flex;align-items:center;gap:6px;padding:3px 6px;border-radius:8px;
  color:#fff;font-size:14px;font-weight:700;text-shadow:0 1px 2px rgba(0,0,0,.5)}
.board li.me{background:rgba(255,255,255,.22)}
.board li b{width:14px;text-align:right;opacity:.85}
.board li i{width:11px;height:11px;border-radius:50%;border:1.5px solid rgba(255,255,255,.75)}
.board li span{flex:1}
.board li em{font-style:normal;opacity:.9;font-variant-numeric:tabular-nums}

/* 판마다 목표 3개 — 순위표 아래에 붙는다 */
.missions{position:absolute;left:14px;top:206px;margin:0;padding:6px 8px;list-style:none;
  background:rgba(12,20,16,.36);border-radius:12px;backdrop-filter:blur(6px);min-width:132px}
.missions li{display:flex;align-items:center;gap:6px;color:#fff;font-size:13px;font-weight:700;
  padding:2px 0;text-shadow:0 1px 2px rgba(0,0,0,.5);opacity:.95}
.missions li i{width:15px;height:15px;border-radius:5px;border:2px solid rgba(255,255,255,.6);
  font-style:normal;font-size:11px;line-height:12px;text-align:center;flex:0 0 auto}
.missions li.done{color:#ffe08a}
.missions li.done i{background:#f2c14e;border-color:#fff;color:#2b2410}
.missions li.done span{text-decoration:line-through;opacity:.8}

.missions.result{position:static;background:none;backdrop-filter:none;padding:10px 0 0;
  display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.missions.result li{color:#3c4a42}
.missions.result li i{border-color:rgba(0,0,0,.3)}
.missions.result li.done{color:#a3781a}
.rt tr.me{background:rgba(242,193,78,.22);font-weight:800}

.modes button em{display:block;font-style:normal;font-size:12px;font-weight:600;opacity:.72;margin-top:2px}

/* 마지막 10초 — 시계가 빨개지고 살짝 뛴다. 먹기 문턱 완화와 같은 시각에 켜진다(C.FINALE_SEC). */
.clock.finale{color:#ff6b6b;animation:tick .5s steps(2,end) infinite}
@keyframes tick{0%{transform:scale(1)}50%{transform:scale(1.14)}100%{transform:scale(1)}}

/* 화면 밖 표적 화살표 — 1위(👑)와 별 과일(⭐)이 어느 쪽인지 */
.ptr{position:absolute;transform:translate(-50%,-50%);pointer-events:none;z-index:6;
  display:flex;flex-direction:column;align-items:center;gap:1px}
.ptr b{font-size:24px;line-height:1;filter:drop-shadow(0 2px 3px rgba(0,0,0,.55))}
.ptr::after{content:var(--d);font-size:11px;font-weight:700;color:#fff;
  background:rgba(0,0,0,.42);border-radius:8px;padding:0 5px}
.crown-ptr b{animation:ptrpulse 1.6s ease-in-out infinite}
.star-ptr b{animation:ptrpulse .9s ease-in-out infinite}
@keyframes ptrpulse{0%,100%{transform:scale(1)}50%{transform:scale(1.18)}}

/* 콤보 — 🔴 점수와 무관한 손맛 표시다. 화면이 «점수가 오른다»고 오해시키면 안 되므로
   숫자 옆에 「연속!」만 붙이고 점수 색(금색)을 쓰지 않는다. */
.combo{position:absolute;left:50%;top:18%;transform:translateX(-50%);z-index:6;
  display:flex;align-items:baseline;gap:4px;pointer-events:none;
  text-shadow:0 2px 6px rgba(0,0,0,.6)}
.combo b{font-size:30px;font-weight:900;color:#8fe3ff}
.combo span{font-size:13px;font-weight:700;color:#dff6ff;opacity:.9}
.combo.pop{animation:combopop .28s ease-out}
@keyframes combopop{0%{transform:translateX(-50%) scale(.6)}60%{transform:translateX(-50%) scale(1.18)}100%{transform:translateX(-50%) scale(1)}}

/* 「지난 나」 유령 — 최고 점수 판의 같은 시각 크기 */
.ghost{position:absolute;right:14px;bottom:96px;z-index:5;pointer-events:none;
  display:flex;flex-direction:column;align-items:flex-end;gap:1px;
  background:rgba(0,0,0,.34);border-radius:10px;padding:4px 8px}
.ghost i{font-size:10px;font-style:normal;opacity:.8;color:#fff}
.ghost b{font-size:15px;font-weight:800;color:#ffb4b4}
.ghost.ahead b{color:#9ef5b5}

/* 도감 탭 */
.tabs{display:flex;gap:6px;margin:0 0 8px}
.tabs .tab{flex:1;padding:8px 6px;border-radius:10px;border:0;font-weight:800;font-size:14px;
  background:rgba(255,255,255,.10);color:#e9f3ec;cursor:pointer}
.tabs .tab.on{background:#3e8f5f;color:#fff}
.bcard.wear{outline:2px solid #ffd85e}
.bcard.off{opacity:.55}
.bcard.on{cursor:pointer}

/* 오늘의 섬 · 오늘의 도전 — 🔴 연속 출석·타이머 압박 UI 는 넣지 않는다(아동 대상 다크패턴) */
.today{margin:10px 0 6px;padding:10px;border-radius:12px;background:rgba(255,255,255,.07)}
#btn-today{width:100%;padding:12px;border-radius:12px;border:0;cursor:pointer;
  font-size:17px;font-weight:800;color:#22331f;background:linear-gradient(180deg,#ffe08a,#f5c451)}
.missions.today{list-style:none;margin:8px 0 4px;padding:0;display:flex;flex-direction:column;gap:4px}
.missions.today li{display:flex;align-items:center;gap:6px;font-size:13px;color:#e6f0e8}
.missions.today li i{width:16px;height:16px;border-radius:5px;background:rgba(255,255,255,.16);
  font-style:normal;font-size:11px;display:flex;align-items:center;justify-content:center}
.missions.today li.done{color:#9ef5b5}
.missions.today li.done i{background:#3e8f5f;color:#fff}

/* 「오늘 배운 것」 + 복습 — 🔴 점수와 무관하다는 것이 화면에서 읽혀야 한다(금색 금지) */
.learn{margin:10px 0;padding:10px;border-radius:12px;background:rgba(255,255,255,.06);text-align:left}
.learn h3{margin:0 0 6px;font-size:14px;color:#cfe6d6}
.learn p{margin:2px 0;font-size:13px;color:#e6f0e8}
.learn p.ok{color:#9ef5b5}
.learn p.no{color:#ffc9c9}
.learn p.adj{color:#a9d8ff;font-size:12px}
.review{margin-top:8px;padding-top:8px;border-top:1px solid rgba(255,255,255,.14)}
.review .rq{font-size:14px;font-weight:700;margin-bottom:6px}
.review .qchoices{display:flex;gap:6px;flex-wrap:wrap}
.review .qc{padding:8px 12px;border-radius:10px;border:0;font-size:14px;font-weight:700;
  background:rgba(255,255,255,.12);color:#eef7f0;cursor:pointer;min-height:44px}
.review .qc:disabled{opacity:.5;cursor:default}

/* 교실 코드 — 코드와 별명뿐. 반 이름·학교 입력란은 «만들지 않는다». */
.classrow{display:flex;gap:6px;margin:8px 0 4px}
.classrow input{flex:1;min-width:0;padding:10px;border-radius:10px;border:0;font-size:15px;
  font-weight:700;letter-spacing:1px;text-transform:uppercase;background:rgba(255,255,255,.12);color:#fff}
.classrow button{padding:10px 12px;border-radius:10px;border:0;font-weight:800;font-size:14px;
  background:rgba(255,255,255,.14);color:#eef7f0;cursor:pointer;min-height:44px}
#btn-share{min-height:44px}