*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #1976d2;--primary-dark: #1565c0;--completed-bg: #4caf50;--completed-text: white;--bingo-line-bg: #ff9800;--cell-bg: #f5f5f5;--cell-border: #ccc;--cell-text: #222;--panel-bg: #fafafa}html,body,#root{height:100%;width:100%;overflow:hidden}body{font-family:system-ui,-apple-system,sans-serif;background:#e3f2fd}.app{height:100vh;width:100vw;display:flex;flex-direction:column;overflow:hidden}.layout{flex:1;display:flex;flex-direction:column;overflow:hidden;padding:8px;gap:8px}@media (orientation: landscape){.layout{flex-direction:row;align-items:stretch}}.grid-area{display:flex;align-items:center;justify-content:center;flex-shrink:0}@media (orientation: landscape){.grid-area{flex:0 0 auto;height:100%}}.bingo-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:4px;width:min(calc(100vw - 16px),calc(100vh - 180px));height:min(calc(100vw - 16px),calc(100vh - 180px))}@media (orientation: landscape){.bingo-grid{width:calc(100vh - 16px);height:calc(100vh - 16px)}}.bingo-cell{position:relative;background:var(--cell-bg);border:1px solid var(--cell-border);border-radius:6px;display:flex;align-items:center;justify-content:center;cursor:pointer;padding:4px;transition:background .15s,transform .1s;overflow:hidden;-webkit-user-select:none;user-select:none}.bingo-cell:active{transform:scale(.96)}.bingo-cell.completed{background:var(--completed-bg);border-color:#388e3c}.bingo-cell.completed .cell-text{color:var(--completed-text)}.bingo-cell.bingo-line{background:var(--bingo-line-bg);border-color:#e65100}.cell-text{text-align:center;color:var(--cell-text);line-height:1.2}.cell-icon{position:absolute;top:2px;right:2px;line-height:0;opacity:.7}.side-panel{display:flex;flex-direction:column;gap:10px;padding:4px 8px}@media (orientation: landscape){.side-panel{flex:1;justify-content:center;padding:16px;background:var(--panel-bg);border-radius:8px}}.header-row{display:flex;align-items:center;justify-content:space-between;gap:8px}.app-title{font-size:clamp(16px,4vw,28px);font-weight:700;color:var(--primary-dark)}.header-controls{display:flex;align-items:center;gap:4px;flex-shrink:0}.font-btn{background:none;border:1px solid #bbb;border-radius:4px;cursor:pointer;padding:2px 6px;font-size:13px;font-weight:700;color:#444;line-height:1.4;transition:background .15s,border-color .15s}.font-btn:hover:not(:disabled){background:#e3f2fd;border-color:var(--primary);color:var(--primary)}.font-btn:disabled{opacity:.3;cursor:not-allowed}.flag-btn{background:none;border:2px solid transparent;border-radius:4px;cursor:pointer;padding:2px;line-height:0;transition:border-color .15s}.flag-btn:hover{border-color:var(--primary)}.rule-text{font-size:clamp(11px,2vw,14px);color:#555;font-style:italic}.action-buttons{display:flex;flex-wrap:wrap;gap:8px}.btn{font-size:14px;font-weight:600;padding:8px 16px;border:none;border-radius:6px;cursor:pointer;transition:background .15s,opacity .15s}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-secondary{background:#e0e0e0;color:#333}.btn-secondary:hover:not(:disabled){background:#bdbdbd}.btn-action{background:var(--primary);color:#fff;flex:1;min-width:80px}.btn-action:hover:not(:disabled){background:var(--primary-dark)}.btn-newgame{background:#757575}.btn-newgame:hover:not(:disabled){background:#616161}.dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:100}.dialog{background:#fff;border-radius:12px;padding:24px;max-width:340px;width:calc(100vw - 32px);display:flex;flex-direction:column;gap:12px}.dialog-title{font-size:18px;font-weight:700;color:#222}.dialog-message{font-size:14px;color:#444;line-height:1.5}.dialog-buttons{display:flex;gap:8px;justify-content:flex-end;margin-top:4px}.bingo-notification{position:fixed;top:16px;left:50%;transform:translate(-50%);background:#ff9800;color:#fff;font-size:18px;font-weight:700;padding:12px 24px;border-radius:24px;box-shadow:0 4px 12px #0000004d;z-index:200;cursor:pointer;white-space:nowrap}