@import url("https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap");:root{--bg-primary:#07090e;--bg-secondary:#0d121f;--card-bg:rgba(18,26,44,0.4);--card-border:rgba(255,255,255,0.07);--text-primary:#f8fafc;--text-muted:#94a3b8;--color-x:#00f2fe;--color-x-glow:rgba(0,242,254,0.4);--color-o:#ff2a85;--color-o-glow:rgba(255,42,133,0.4);--accent:#8b5cf6;--accent-glow:rgba(139,92,246,0.4);--success:#10b981}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:Outfit,sans-serif;min-height:100vh;overflow-x:hidden;background-image:radial-gradient(circle at 10% 20%,rgba(139,92,246,.15) 0,transparent 40%),radial-gradient(circle at 90% 80%,rgba(0,242,254,.12) 0,transparent 40%);background-attachment:fixed}.glass-panel{background:var(--card-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--card-border);border-radius:24px;box-shadow:0 8px 32px 0 rgba(0,0,0,.37);transition:all .3s cubic-bezier(.4,0,.2,1)}.glass-panel:hover{border-color:rgba(255,255,255,.12);box-shadow:0 12px 40px 0 rgba(0,0,0,.5)}.game-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);grid-gap:12px;gap:12px;width:100%;max-width:360px;aspect-ratio:1;margin:20px auto}.cell,.game-grid{position:relative}.cell{background:rgba(18,26,44,.6);border:1px solid var(--card-border);border-radius:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .25s cubic-bezier(.4,0,.2,1);overflow:hidden}.cell:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at center,rgba(255,255,255,.08) 0,transparent 70%);opacity:0;transition:opacity .2s ease}.cell:hover:before{opacity:1}.cell:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.2);box-shadow:0 6px 20px rgba(0,0,0,.3)}.cell:active{transform:translateY(1px)}.symbol-x{color:var(--color-x);text-shadow:0 0 15px var(--color-x-glow)}.symbol-o,.symbol-x{font-size:3.5rem;font-weight:800;animation:scaleIn .3s cubic-bezier(.34,1.56,.64,1) forwards}.symbol-o{color:var(--color-o);text-shadow:0 0 15px var(--color-o-glow)}.game-btn{background:linear-gradient(135deg,var(--accent) 0,#6d28d9 100%);color:white;border:none;padding:12px 24px;border-radius:12px;font-family:inherit;font-weight:600;cursor:pointer;box-shadow:0 4px 15px var(--accent-glow);transition:all .2s ease}.game-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(139,92,246,.6);filter:brightness(1.1)}.game-btn:active{transform:translateY(1px)}.game-btn.secondary{background:transparent;border:1px solid var(--card-border);color:var(--text-primary);box-shadow:none}.game-btn.secondary:hover{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.2);box-shadow:none}.mode-selector{display:flex;background:rgba(8,11,17,.6);border:1px solid var(--card-border);border-radius:14px;padding:4px;gap:4px}.mode-pill{flex:1 1;background:transparent;border:none;color:var(--text-muted);padding:8px 16px;border-radius:10px;cursor:pointer;font-family:inherit;font-weight:500;font-size:.9rem;transition:all .2s ease}.mode-pill.active{background:var(--card-bg);color:var(--text-primary);box-shadow:0 2px 8px rgba(0,0,0,.2);border:1px solid rgba(255,255,255,.05)}@keyframes scaleIn{0%{transform:scale(.3);opacity:0}to{transform:scale(1);opacity:1}}@keyframes pulse{0%,to{opacity:.6}50%{opacity:1}}.winning-cell{background:rgba(139,92,246,.2)!important;border-color:var(--accent)!important;box-shadow:0 0 20px var(--accent-glow)!important}.particle{position:absolute;pointer-events:none;border-radius:50%;animation:explode .8s cubic-bezier(.1,.8,.3,1) forwards}@keyframes explode{0%{transform:translate(0) scale(1);opacity:1}to{transform:translate(var(--tx),var(--ty)) scale(0);opacity:0}}