.number-board{position:relative;width:100%;min-height:560px;border:1px solid var(--border);border-radius:24px;background:radial-gradient(circle at top,rgba(99,102,241,.08),transparent 35%),var(--surface);overflow:hidden;-webkit-user-select:none;user-select:none;touch-action:manipulation}.board-number{position:absolute;transform:translate(-50%,-50%);display:flex;align-items:center;justify-content:center;min-width:48px;min-height:48px;padding:6px;border:0;border-radius:50%;background:transparent;color:var(--text);font:inherit;font-size:1.15rem;font-weight:800;cursor:pointer;-webkit-user-select:none;user-select:none;touch-action:manipulation}.board-number:hover:not(:disabled){background:var(--surface-hover)}.board-number:active:not(:disabled){transform:translate(-50%,-50%) scale(.92)}.board-number:disabled{cursor:default}.board-number--found{color:var(--muted);opacity:.65}.board-number__cross{position:absolute;font-size:2.4rem;font-weight:400;color:var(--danger);pointer-events:none}.board-number--target{outline:3px solid var(--success);background:#22c55e1f}@media(max-width:700px){.number-board{min-height:520px}.board-number{min-width:44px;min-height:44px;font-size:1rem}}.player-grid{display:grid;width:min(100%,540px);gap:5px;margin-inline:auto;-webkit-user-select:none;user-select:none;touch-action:manipulation}.grid-cell{aspect-ratio:1;min-width:0;border:1px solid var(--border);border-radius:7px;background:var(--surface);cursor:pointer;transition:transform 80ms ease,background .1s ease}.grid-cell:not(:disabled):active{transform:scale(.88)}.grid-cell--filled{background:var(--primary);border-color:var(--primary)}.grid-cell:disabled:not(.grid-cell--filled){cursor:default;opacity:.65}.setup{min-height:100dvh;display:grid;place-items:center;padding:24px}.setup__card{width:min(100%,520px);display:grid;gap:32px;padding:36px;border:1px solid var(--border);border-radius:28px;background:var(--surface);box-shadow:0 30px 80px #00000014}.setup h1{margin:6px 0;font-size:clamp(2.5rem,8vw,4rem);letter-spacing:-.06em}.setup__intro{margin:0;color:var(--muted);line-height:1.6}.setup__form{display:grid;gap:18px}.setup__form label{display:grid;gap:7px;font-size:.9rem;font-weight:700}.setup__form input,.setup__form select{width:100%;padding:13px 14px;border:1px solid var(--border);border-radius:12px;background:var(--background);color:var(--text);font:inherit}@media(max-width:600px){.setup{padding:16px}.setup__card{padding:24px}}:root{--background: #f7f7f8;--surface: #ffffff;--surface-hover: #f1f3f5;--text: #111827;--muted: #6b7280;--border: #e5e7eb;--primary: #4f46e5;--primary-hover: #4338ca;--danger: #dc2626;--success: #16a34a;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--text);background:var(--background)}*{box-sizing:border-box}html{min-width:320px;background:var(--background)}body{margin:0;min-width:320px;min-height:100vh;background:var(--background);color:var(--text);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button,input,select{font:inherit}button{-webkit-tap-highlight-color:transparent}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(79,70,229,.25);outline-offset:2px}.eyebrow{color:var(--primary);font-size:.72rem;font-weight:800;letter-spacing:.12em}.primary-button,.secondary-button{min-height:46px;padding:10px 18px;border-radius:12px;font-weight:800;cursor:pointer}.primary-button{border:0;background:var(--primary);color:#fff}.primary-button:hover{background:var(--primary-hover)}.secondary-button{border:1px solid var(--border);background:var(--surface);color:var(--text)}.game{width:min(1500px,100%);margin-inline:auto;padding:24px}.game__header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.game__header h1{margin:2px 0 0;font-size:2rem}.turn-status{margin-bottom:24px;padding:20px 24px;border:1px solid var(--border);border-radius:18px;background:var(--surface)}.turn-status h2{margin:4px 0}.turn-status p{margin:0;color:var(--muted)}.game-layout{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(320px,.8fr);gap:24px}.game-panel{min-width:0;padding:18px;border:1px solid var(--border);border-radius:24px;background:var(--surface)}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.panel-heading h3{margin:4px 0 0;font-size:1.3rem}.score{font-size:1.8rem}.score span{color:var(--muted);font-size:.9rem}.winner-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:grid;place-items:center;padding:20px;background:#11182799;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.winner-card{width:min(100%,420px);padding:36px;border-radius:24px;background:var(--surface);text-align:center;box-shadow:0 40px 100px #0003}.winner-card h2{margin:8px 0;font-size:2.2rem}.winner-card p{margin:0 0 24px;color:var(--muted)}@media(max-width:900px){.game-layout{grid-template-columns:1fr}}@media(max-width:600px){.game{padding:12px}.game__header{margin-bottom:12px}.turn-status{padding:16px;margin-bottom:12px}.game-panel{padding:12px;border-radius:18px}.game-layout{gap:12px}}