:root{
  --bg:#0b1221;
  --panel:#0f1724;
  --accent:#00d1b2;
  --muted:#9aa7bd;
  --card:#0b1020;
}

*{box-sizing:border-box}
html,body{height:100%;margin:0;font-family:Inter,'Noto Sans KR',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial}
body{background:linear-gradient(180deg,#07102395 0%,#071023 100%),var(--bg);color:#e6eef6;display:flex;flex-direction:column;align-items:center}

.site-header{width:100%;max-width:1100px;padding:18px 20px;display:flex;align-items:center;gap:18px}
.site-header .home-link{color:var(--muted);text-decoration:none;font-weight:600}

.container{width:100%;max-width:1100px;padding:12px}
.game-area{display:flex;gap:24px;align-items:flex-start}
.board-wrap{background:var(--panel);padding:18px;border-radius:12px;display:flex;gap:18px}
canvas{background:#071428;border-radius:6px;display:block}
.hud{min-width:180px;display:flex;flex-direction:column;gap:12px}
.score-block{background:var(--card);padding:12px;border-radius:8px;display:flex;justify-content:space-between;align-items:center}
.controls{display:flex;flex-direction:column;gap:8px}
.controls button{padding:10px;border-radius:8px;border:0;background:var(--accent);color:#042825;font-weight:700}
.info{color:var(--muted);font-size:13px}
.next-wrap{display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--muted)}
.site-footer{text-align:center;padding:18px;color:var(--muted);width:100%;max-width:1100px}

.mobile-controls{position:fixed;left:50%;transform:translateX(-50%);bottom:14px;display:flex;gap:12px;align-items:center}
.m-btn{width:62px;height:62px;border-radius:50%;border:0;background:#0e1730;color:#fff;font-size:20px;box-shadow:0 6px 18px rgba(2,6,23,.6)}
.m-mid{display:flex;flex-direction:column;gap:8px}

@media(min-width:900px){
  .mobile-controls{display:none}
}

@media(max-width:899px){
  .game-area{flex-direction:column;align-items:center}
  .hud{flex-direction:row;gap:8px;width:100%;justify-content:space-around}
  .board-wrap{padding:12px}
}