:root{--bg: #1a1a1a;--panel: #242424;--border: #777777;--accent: #64b0ff;--text: #e8e8e8;--safe-bottom: env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box}html,body{padding:0;margin:0;overflow:hidden;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}#app{position:fixed;inset:0;display:flex;flex-direction:column;align-items:stretch}#opponents{display:flex;flex-direction:row;gap:8px;justify-content:center;align-items:flex-start;overflow-x:auto;overflow-y:hidden;flex:0 0 auto;max-height:30vh;padding:4px}#opponents:empty{display:none}#board{flex:1 1 auto;min-height:0;display:flex;justify-content:center;align-items:center;padding:4px}.tetris-container{display:flex;justify-content:center;align-items:center;width:100%;height:100%}.tetris-container-half{display:flex;justify-content:center;align-items:flex-start;width:22vw;max-width:160px;height:28vh}.tetris-container-inner{position:relative}.tetris-container-inner canvas{border:1px solid var(--border);display:block}.tetris-container-inner canvas:last-child{position:absolute;top:0;left:0}#touch-controls{flex:0 0 auto;display:flex;justify-content:center;gap:10px;padding:10px 10px calc(10px + var(--safe-bottom))}#touch-controls[hidden]{display:none}.tc-btn{flex:1 1 0;max-width:90px;height:64px;font-size:28px;color:var(--text);background:var(--panel);border:1px solid var(--border);border-radius:12px;touch-action:manipulation;cursor:pointer}.tc-btn:active{background:var(--accent);color:#000}#menu-root{position:fixed;inset:0;z-index:10;pointer-events:none}.menu-overlay{position:fixed;inset:0;background:#000000b8;display:flex;align-items:center;justify-content:center;padding:16px;pointer-events:auto}.menu-card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:24px;width:100%;max-width:360px;box-shadow:0 12px 40px #00000080}.menu-card h1{margin:0 0 4px;font-size:24px;color:var(--accent)}.menu-card p{margin:0 0 16px;opacity:.8;font-size:14px}.menu-btn{display:block;width:100%;padding:14px;margin-bottom:10px;font-size:16px;color:var(--text);background:#333;border:1px solid var(--border);border-radius:10px;cursor:pointer}.menu-btn.primary{background:var(--accent);color:#000;border-color:var(--accent)}.menu-btn:active{opacity:.85}.menu-input{width:100%;padding:14px;margin-bottom:10px;font-size:18px;letter-spacing:3px;text-align:center;text-transform:uppercase;color:var(--text);background:#1c1c1c;border:1px solid var(--border);border-radius:10px}.menu-code{font-size:32px;letter-spacing:6px;text-align:center;font-weight:700;color:var(--accent);padding:12px;background:#1c1c1c;border-radius:10px;margin-bottom:12px}.menu-status{text-align:center;font-size:14px;opacity:.8;margin-bottom:12px}.menu-hint{text-align:center;font-size:12px;opacity:.6;margin-top:8px}.menu-back{background:transparent;border:none;color:var(--accent)}#menu-toggle{position:fixed;top:calc(8px + env(safe-area-inset-top,0px));right:8px;z-index:5;padding:8px 12px;font-size:13px;color:var(--text);background:var(--panel);border:1px solid var(--border);border-radius:8px;cursor:pointer;opacity:.85}@media(pointer:fine){#touch-controls{display:none!important}}