/* =====================================================================
   life-battle.css  – 2025-05-15  (mobile-friendly / no-scroll version)
   · 데스크톱(≥900 px)  :  왼(로그)-가운데(보드)-오른(점수)  3단
   · 모바일(<900 px)   :  한 컬럼 + 접이식 패널 + 고정 HUD
   ==================================================================== */

/* ---------- 1. 전역 변수 ------------------------------------------------ */
:root{
  --primary        : #4361ee;
  --primary-dark   : #3f37c9;
  --secondary      : #ffb703;

  --bg             : #f7f9fe;
  --card-bg        : #fff;
  --border         : #e9ecef;
  --text           : #212529;

  --shadow         : 0 4px 16px rgba(0,0,0,.08);
  --card-shadow    : 0 4px 10px rgba(0,0,0,.12);
  --radius         : 8px;

  --comp-card      : #4c6ef5;
  --comp-card-dark : #364fc7;
  --user-card      : #f03e3e;
  --user-card-dark : #c92a2a;
  --comp-hidden    : #4dabf7;
  --user-hidden    : #ff922b;

  --sidebar-width  : 280px; /* 유틸허브 공통 값 */
}

*{margin:0;padding:0;box-sizing:border-box}

/* ---------- 2. 바탕 ----------------------------------------------------- */
html,body{max-width:100%;overflow-x:hidden}                 /* ← 가로 스크롤 차단 */
body{
  font-family:'Pretendard','Segoe UI',sans-serif;
  background:var(--bg);color:var(--text);
  line-height:1.5;min-height:100vh;
  display:flex;justify-content:center;align-items:flex-start;
  padding:20px;
}
@media(max-width:768px){body{padding:10px}}

/* ---------- 3. 사이트 헤더 --------------------------------------------- */
.service-header{
  position:fixed;left:0;top:0;width:100%;z-index:2000;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;text-align:center;padding:12px 0;box-shadow:var(--shadow);
}
.service-header h1{
  margin:0;font-size:clamp(1.4rem,4vw,2.1rem);font-weight:700;
  display:inline-flex;gap:.45rem;align-items:center;
}

/* 헤더 아래 여백 확보 */
header+*{margin-top:72px}

/* ---------- 4. 페이지 레이아웃 ----------------------------------------- */
.page-layout{display:flex;gap:16px;width:100%;max-width:1200px;}
/* 왼쪽 utilhub 사이드바는 서비스 공통 css 에서 제어 */

/* 메인 영역 */
.main-content{flex:1;display:flex;justify-content:center}

/* ---------- 5. 게임 컨테이너 ------------------------------------------- */
.game-container{
  width:100%;max-width:900px;background:var(--card-bg);
  border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;
  display:flex;flex-direction:column;
}

/* ── 5-1. 점수판 ────────────────────────────────────────────────── */
.scoreboard{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;padding:.7rem 1rem;font-size:.95rem;
  display:flex;justify-content:space-between;align-items:center;
}
.scoreboard h2{font-size:1.05rem;font-weight:700}
.stats{display:flex;align-items:center;gap:.6rem}
.record{font-size:.84rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.scoreboard.bottom{background:linear-gradient(135deg,#333,#222);margin-top:auto}

/* ── 5-2. 본문 wrapper(로그·보드·우측) ─────────────────────────── */
.wrapper{
  display:grid;grid-template-columns:180px 1fr 180px;gap:16px;padding:16px;
  transition:.3s all;
}
.center-section{display:flex;flex-direction:column;gap:16px}

/* ── 5-3. 로그 박스 ───────────────────────────────────────────── */
.logBox{
  height:420px;display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:0 2px 5px rgba(0,0,0,.05);transition:height .25s;
}
.log-header{
  background:var(--primary);color:#fff;font-size:.85rem;font-weight:600;
  padding:.5rem .7rem;display:flex;justify-content:space-between;cursor:pointer
}
.clear-log-btn{
  background:rgba(255,255,255,.18);border:none;color:#fff;font-size:.75rem;
  padding:.2rem .6rem;border-radius:4px;cursor:pointer;
}
.log{flex:1;overflow-y:auto;padding:.7rem;font-size:.85rem}
.log p{margin-bottom:.4rem;border-bottom:1px solid var(--border);padding-bottom:.4rem}
.log p:last-child{border:none;font-weight:600;color:var(--primary)}

/* ── 5-4. 보드(카드 영역) ─────────────────────────────────────── */
.board{
  height:420px;display:flex;flex-direction:column;align-items:center;position:relative;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:1rem;box-shadow:0 2px 5px rgba(0,0,0,.05);
}
.board::before{content:'';position:absolute;inset:0;z-index:-1;
  background:radial-gradient(circle at center,#f0f5ff 0%,#fff 70%);}
.card-area{flex:1;display:flex;flex-direction:column;justify-content:center;gap:2.4rem}
.card-pair{display:flex;justify-content:space-between;gap:1.4rem;padding:0 2rem}
.action{margin-top:auto;width:100%;display:flex;justify-content:center;gap:.6rem;padding:1rem 0}

/* ── 5-5. 버튼 열 ─────────────────────────────────────────────── */
.button-row{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:0 2px 5px rgba(0,0,0,.05);padding:.8rem;
  display:flex;justify-content:space-between;gap:.7rem;
}
.button-row button{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ── 5-6. 우측 패널(점수·난이도) ─────────────────────────────── */
.side{display:flex;flex-direction:column;gap:12px;max-width:180px}
.score-card,.difficulty-panel{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:0 2px 5px rgba(0,0,0,.05);padding:.8rem;
}
.score-card h3,.difficulty-panel h3{
  text-align:center;color:var(--primary);font-size:.93rem;margin-bottom:.4rem;position:relative;
}
.score-card h3::after,.difficulty-panel h3::after{
  content:'';display:block;width:30%;height:2px;background:var(--primary);margin:.3rem auto}
.score-row{display:flex;justify-content:space-between;font-size:.85rem;margin-bottom:.4rem}
.score-row:last-child{margin-top:.4rem;padding-top:.4rem;border-top:1px solid var(--border);font-weight:600}

.difficulty-selector{display:grid;grid-template-columns:1fr 1fr;gap:.5rem}
.diff-btn{
  padding:.4rem .2rem;font-size:.8rem;border:none;border-radius:4px;background:#e9ecef;
  cursor:pointer;color:var(--text)
}
.diff-btn:hover{background:#dee2e6}
.diff-btn.active{background:var(--primary);color:#fff}
#diffNormal.active  {background:#4dabf7}
#diffHard.active    {background:#f59f00}
#diffExtreme.active {background:#f03e3e}
#diffHell.active    {background:#862e9c}

/* ---------- 6. 카드 스타일 --------------------------------------------- */
.card{
  width:70px;height:100px;border-radius:8px;background:#fff;display:flex;
  justify-content:center;align-items:center;font-size:2.2rem;font-weight:700;
  box-shadow:var(--card-shadow);position:relative;
}
.card.comp-card   {border:2px solid var(--comp-card);   color:var(--comp-card-dark)}
.card.user-card   {border:2px solid var(--user-card);   color:var(--user-card-dark)}
.card.comp-hidden {border:2px solid var(--comp-hidden); color:var(--comp-card-dark);font-size:1.8rem}
.card.user-hidden {border:2px solid var(--user-hidden); color:var(--user-card-dark);font-size:1.8rem}
.card::after{font-size:.9rem;position:absolute;top:.4rem;left:.6rem;opacity:.8}
.card.comp-card::after   {content:attr(data-value);color:var(--comp-card-dark)}
.card.user-card::after   {content:attr(data-value);color:var(--user-card-dark)}
.card.comp-hidden::after {content:"H";color:var(--comp-card-dark)}
.card.user-hidden::after {content:"H";color:var(--user-card-dark)}

/* ---------- 7. 버튼 공통 ----------------------------------------------- */
button{
  padding:.55rem .9rem;border:none;border-radius:var(--radius);
  background:var(--primary);color:#fff;font-weight:600;font-size:.85rem;
  cursor:pointer;transition:.15s all;box-shadow:0 2px 4px rgba(0,0,0,.1);
}
button:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 3px 6px rgba(0,0,0,.15)}
button:active:not(:disabled){transform:translateY(1px)}
button:disabled{opacity:.5;cursor:not-allowed}
button.rps{background:#5c75b5;padding:.7rem 1.6rem;font-size:1rem}
#forfeitBtn{background:#f44336}
.buy-btn{background:var(--secondary);color:#111}

/* -----------------------------------------------------------------------
   8. 모바일 레이아웃  ( ≤900px )
   --------------------------------------------------------------------- */
@media(max-width:900px){

  /* 8-1. 전체 흐름 : 컬럼 하나로 변환 */
  .page-layout{flex-direction:column;gap:0}
  .wrapper{
    display:flex;flex-direction:column;gap:12px;padding:12px;
  }

  /* 8-2. 로그・우측 패널을 접이식 카드처럼 */
  .logBox{height:110px}
  .logBox.open{height:260px}               /* 헤더 클릭 시 class 토글 */
  .difficulty-panel.folded .difficulty-selector{display:none}

  /* 8-3. 카드 / 보드 크기 다운 */
  .board{height:290px}
  .card{width:54px;height:78px;font-size:1.7rem}

  /* 8-4. 버튼 열 – 2×2 그리드 느낌 */
  .button-row{background:none;border:none;box-shadow:none;padding:0;flex-wrap:wrap}
  .button-row button{flex:0 0 48%;margin-bottom:6px;font-size:.8rem}

  /* 8-5. 우측 패널(점수·난이도) – 가로 스크롤 허용 */
  .side{flex-direction:row;overflow-x:auto;padding-bottom:6px;max-width:100%}
  .side>*{flex:0 0 160px}

  /* 8-6. 헤더·스코어보드 간격 축소 */
  .service-header{padding:10px 0}
  .scoreboard{flex-direction:column;gap:3px;padding:.5rem .6rem}
  .scoreboard .stats{gap:.4rem;font-size:.9rem}
  .record{font-size:.76rem}

  /* 8-7. 고정 HUD 바(사용자·컴퓨터 합계) */
  .hud{
    position:fixed;left:0;right:0;bottom:0;height:38px;z-index:1950;
    background:#fff;border-top:1px solid var(--border);
    display:flex;justify-content:center;align-items:center;gap:.8rem;font-size:.82rem;
    box-shadow:0 -2px 4px rgba(0,0,0,.06);
  }
  body{padding-bottom:56px}                /* HUD 만큼 공간 확보 */
  .scoreboard.bottom{display:none}         /* 기존 푸터 숨김 */
}

/* 초소형(≤480px) – 카드 더 축소 & 버튼 세로 */
@media(max-width:480px){
  .card{width:46px;height:66px;font-size:1.5rem}
  .button-row{flex-direction:column}
  .button-row button{flex-basis:100%}
}