/* ═══════════════════════════════════════════════
   BlockFit — Game Styles
   ═══════════════════════════════════════════════ */
.menu{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;gap:18px}
.menu-title{font-size:clamp(38px,10vw,56px);font-weight:700;letter-spacing:4px;color:var(--navy)}
.menu-sub{font-size:14px;font-weight:300;color:var(--text-dim);letter-spacing:1.5px}
.menu-how{max-width:360px;text-align:center;font-size:13px;font-weight:400;line-height:1.7;color:var(--text-mid);padding:16px 20px;border-radius:var(--radius-md);background:var(--bg-subtle);border:1px solid var(--border)}
.diff-btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px;justify-content:center}
.diff-btn{padding:14px 24px;border-radius:var(--radius-md);border:2px solid var(--border);background:var(--bg);color:var(--navy);font-size:13px;font-weight:600;letter-spacing:2.5px;cursor:pointer;font-family:var(--font);transition:all var(--transition);box-shadow:var(--shadow-sm)}
.diff-btn:hover{background:var(--bg-subtle);transform:translateY(-2px);box-shadow:var(--shadow-md)}

.game{display:none;flex-direction:column;align-items:center;width:100%;max-width:420px;flex:1}
.game.active{display:flex}
.game-hdr{display:flex;justify-content:space-between;align-items:center;width:100%;padding:0 0 14px}
.badge{background:var(--bg-subtle);border:1.5px solid var(--border);padding:8px 16px;border-radius:var(--radius-pill);font-size:11px;font-weight:600;letter-spacing:2.5px;color:var(--navy)}
.bf-status{font-size:12px;font-weight:500;color:var(--text-dim)}

.bf-grid-wrap{display:flex;justify-content:center;width:100%;padding:4px 0}
.bf-grid{display:grid;gap:0;width:100%}
.bf-cell{aspect-ratio:1;display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative;background:var(--bg-surface);border:2px solid rgba(45,50,112,0.08);transition:background .1s}
.bf-cell--filled{border:2px solid rgba(0,0,0,0.15)}
.bf-cell--target{background:rgba(45,50,112,0.04);outline:1px dashed rgba(45,50,112,0.15);outline-offset:-1px}

/* Piece tray */
.bf-tray{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;padding:18px 0 6px;width:100%}
.bf-piece{padding:6px;border-radius:var(--radius-sm);border:2px solid transparent;cursor:pointer;transition:all .15s;background:var(--bg-subtle)}
.bf-piece:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.bf-piece--selected{border-color:var(--navy);background:var(--white);box-shadow:0 0 0 3px rgba(45,50,112,0.15)}
.bf-piece--placed{opacity:0.25;pointer-events:auto}
.bf-piece-grid{display:grid;gap:1px}
.bf-mini-cell{width:14px;height:14px;border-radius:2px;background:transparent}
.bf-mini-cell--on{border-radius:3px}

.bf-hint{font-size:11px;color:var(--text-dim);text-align:center;padding:4px 0;font-weight:400;letter-spacing:0.5px}

.game-footer{display:flex;gap:18px;padding:14px 0 4px}
.foot-btn{background:none;border:none;color:var(--text-mid);font-size:16px;font-weight:600;cursor:pointer;font-family:var(--font);padding:10px 14px}
.foot-btn:hover{color:var(--navy)}

.win-card{background:var(--bg);border-radius:var(--radius-lg);padding:40px 48px;text-align:center;border:1.5px solid var(--border);box-shadow:0 12px 40px rgba(45,50,112,.12);animation:pop .45s ease}
.win-check{width:68px;height:68px;border-radius:50%;margin:0 auto 16px;background:rgba(80,194,195,.15);border:3px solid var(--teal);display:flex;align-items:center;justify-content:center;font-size:30px;font-weight:700;color:var(--teal)}
.win-title{font-size:28px;font-weight:700;letter-spacing:4px;color:var(--navy);margin-bottom:16px}
.win-btn{display:block;width:100%;padding:14px 0;border-radius:var(--radius-md);border:none;background:var(--navy);color:var(--white);font-size:13px;font-weight:700;letter-spacing:2px;cursor:pointer;font-family:var(--font);margin-bottom:8px}
.win-btn--sec{background:var(--bg);border:1.5px solid var(--border);color:var(--text-dim);font-size:12px}

@keyframes pop{0%{transform:scale(.85);opacity:0}60%{transform:scale(1.05)}100%{transform:scale(1);opacity:1}}