*{box-sizing:border-box;margin:0;padding:0}html,body{min-height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;overscroll-behavior:none;touch-action:manipulation}#app{min-height:100%;display:flex;align-items:flex-start;justify-content:center;padding:16px}.game{width:min(94vw,620px);display:flex;flex-direction:column;gap:12px;position:relative}.crumb{font-size:14px}.crumb a{color:var(--accent);text-decoration:none;font-weight:700}.crumb a:hover{text-decoration:underline}.topbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}.title{font-size:clamp(30px,8.5vw,44px);font-weight:800;line-height:1;letter-spacing:-1px}.stats{display:flex;gap:8px}.stat{flex:1;background:var(--board-bg);color:var(--accent-text);border-radius:6px;padding:6px 10px;text-align:center}.stat .label{font-size:10px;text-transform:uppercase;letter-spacing:1px;opacity:.85;font-weight:700}.stat .value{font-size:22px;font-weight:800;line-height:1.1}.status{font-size:16px;font-weight:700;text-align:center;min-height:22px}.boards{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}.panel{flex:1 1 260px;min-width:0;display:flex;flex-direction:column;gap:6px}.panel-label{font-size:11px;text-transform:uppercase;letter-spacing:1px;font-weight:700;opacity:.8;text-align:center}.grid{display:grid;grid-template-columns:repeat(10,1fr);gap:2px;padding:5px;background:var(--board-bg);border-radius:8px}.cell{aspect-ratio:1 / 1;min-width:0;background:var(--cell-bg);border:none;border-radius:3px;padding:0;line-height:1;position:relative;user-select:none;-webkit-user-select:none;transition:background 90ms ease,transform 60ms ease}.grid.enemy .cell{cursor:pointer}.grid.enemy .cell:hover{filter:brightness(1.08)}.grid.enemy .cell:active{transform:scale(.9)}.grid.player .cell{cursor:default}.cell.ship{background:#5f83a6}.cell.miss:after{content:"";position:absolute;inset:0;margin:auto;width:26%;height:26%;border-radius:50%;background:#7a8894}.cell.hit{background:#e05a4d}.cell.sunk{background:#9e2b22}.btn{background:var(--accent);color:var(--accent-text);border:none;border-radius:6px;padding:10px 16px;font-size:14px;font-weight:700;cursor:pointer;white-space:nowrap;transition:filter .12s ease}.btn:hover{filter:brightness(1.05)}.btn:active{filter:brightness(.95)}.how{font-size:13px;opacity:.85;line-height:1.5}.how b{font-weight:700}.overlay{position:absolute;inset:0;border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;padding:20px;background:var(--overlay-bg);z-index:10;opacity:0;pointer-events:none;transition:opacity .2s ease}.overlay.show{opacity:1;pointer-events:auto}.overlay .msg{font-size:clamp(28px,9vw,44px);font-weight:800}.overlay.win .msg{color:#43a047}.overlay.lose .msg{color:#e05a4d}.overlay .sub{font-size:15px;color:var(--text);opacity:.9}.overlay .actions{display:flex;gap:10px;margin-top:8px}