@import"https://fonts.googleapis.com/css2?family=Caprasimo&family=Roboto+Slab:wght@400;700&display=swap";:root{--color-bg-primary: #0b0f1a;--color-bg-secondary: #111827;--color-surface: #1a2236;--color-surface-alt: #243047;--color-text-primary: #cdd9f0;--color-text-secondary:#7a9abf;--color-text-muted: #4d6a8a;--color-accent: #00d4b8;--color-accent-hover: #00edd0;--color-accent-glow: rgba(0, 212, 184, .5);--color-board-square: #1e2d45;--color-player-active: #00d4b8;--color-heading: #00d4b8;--color-log-text: #cdd9f0;--color-log-highlight-bg: #00d4b8;--radius-sm: 4px;--radius-md: 8px;--shadow-card: 0 0 24px rgba(0, 0, 0, .6);--shadow-glow: 0 0 10px rgba(0, 212, 184, .4)}[data-theme=light]{--color-bg-primary: #e8f0fa;--color-bg-secondary: #d6e4f5;--color-surface: #c4d8ef;--color-surface-alt: #b0cae6;--color-text-primary: #0d1f38;--color-text-secondary:#1e4a7a;--color-text-muted: #3a6a9a;--color-accent: #007a6b;--color-accent-hover: #009680;--color-accent-glow: rgba(0, 122, 107, .35);--color-board-square: #b8d0e8;--color-player-active: #007a6b;--color-heading: #0d1f38;--color-log-text: #0d1f38;--color-log-highlight-bg: #007a6b;--shadow-card: 0 0 20px rgba(0, 0, 0, .12);--shadow-glow: 0 0 8px rgba(0, 122, 107, .3)}*{box-sizing:border-box}html{font-family:Roboto Slab,sans-serif;line-height:1.5;color:var(--color-text-primary);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%;transition:background-color .3s,color .3s}body{background-color:var(--color-bg-primary);background-image:radial-gradient(circle at top,var(--color-surface) 0%,var(--color-bg-primary) 70%);background-repeat:no-repeat;background-size:100% 60%;min-height:100dvh;transition:background-color .3s}#theme-toggle{position:fixed;top:1rem;right:1rem;z-index:100;background:var(--color-surface);border:1px solid var(--color-text-secondary);border-radius:50%;width:2.5rem;height:2.5rem;font-size:1.25rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color .3s,border-color .3s,transform .2s;box-shadow:var(--shadow-card)}#theme-toggle:hover{transform:scale(1.1);border-color:var(--color-accent)}header{text-align:center}header img{width:8rem;object-fit:contain;margin:3rem auto 1rem;filter:drop-shadow(0 0 8px rgba(0,0,0,.4))}h1{font-family:Caprasimo,cursive;font-size:3rem;margin:0 auto 3rem;color:var(--color-heading);transition:color .3s}#game-container{width:90%;max-width:45rem;margin:3rem auto 0;padding:2rem;border-radius:var(--radius-md);background:linear-gradient(var(--color-surface),var(--color-bg-secondary));box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:.75rem;transition:background .3s,box-shadow .3s}#players{list-style:none;padding:0;margin:0;display:flex;justify-content:center;align-items:center;gap:2rem}#players li{display:flex;flex-direction:column;align-items:center;width:50%;border:2px solid transparent;transition:border-color .3s}#players.highlight-player li.active{border-color:var(--color-player-active);animation:pulse 2s infinite ease-in-out}#players.highlight-player li.active .player-name,#players.highlight-player li.active .player-symbol{color:var(--color-player-active)}#players button{width:3rem;min-width:44px;min-height:44px;border:none;background:none;color:var(--color-text-secondary);font-size:.9rem;cursor:pointer;transition:color .2s;padding:.5rem .25rem .25rem;text-align:center}#players button:hover{color:var(--color-accent-hover)}.player{border:2px solid transparent;padding:.5rem;border-radius:var(--radius-sm);font-weight:700}.player-name{display:inline-block;width:10rem;font-size:1rem;color:var(--color-text-primary);text-transform:uppercase;margin:0;padding:.5rem;border-radius:var(--radius-sm);text-overflow:ellipsis;text-align:center;transition:color .3s}.player input{font:inherit;font-size:1rem;width:10rem;border:none;padding:.5rem;animation:pulse-text 2s infinite;background-color:var(--color-surface-alt);color:var(--color-text-primary);text-align:center;text-transform:uppercase;border-radius:var(--radius-sm)}.player-symbol{margin-left:1rem;font-size:1rem;color:var(--color-text-primary);transition:color .3s}.player-score{font-size:.8rem;color:var(--color-text-secondary);margin-top:.25rem;transition:color .3s}#score-controls{display:flex;justify-content:center;align-items:center;gap:1rem;margin:0;font-size:.85rem;color:var(--color-text-secondary);transition:color .3s}#score-controls button{background:none;border:1px solid var(--color-text-secondary);color:var(--color-text-secondary);font:inherit;font-size:.8rem;padding:.2rem .6rem;border-radius:var(--radius-sm);cursor:pointer;transition:color .2s,border-color .2s}#score-controls button:hover{color:var(--color-accent-hover);border-color:var(--color-accent-hover)}ol{list-style:none;margin:0;padding:0}#pre-game{text-align:center}#pre-game button{cursor:pointer;background:none;color:var(--color-accent);border:none;font-family:Caprasimo,cursive;font-size:4rem;text-shadow:0 0 12px rgba(0,0,0,.7);animation:pulse-text-size 2s infinite ease-out}#mode-select{text-align:center;margin:0}#mode-buttons,#difficulty-select{display:inline-flex;gap:.5rem;align-items:center;background:#0003;border-radius:var(--radius-md);padding:.35rem}#difficulty-select{margin-top:.6rem}#difficulty-select span{font-size:.85rem;color:var(--color-text-secondary);padding:0 .25rem}#mode-buttons button,#difficulty-select button{width:auto;min-width:44px;min-height:36px;border:2px solid transparent;background:transparent;color:var(--color-text-secondary);font-family:Roboto Slab,sans-serif;font-size:.9rem;font-weight:700;border-radius:var(--radius-sm);cursor:pointer;padding:.3rem .9rem;transition:color .2s,border-color .2s,background .2s}#mode-buttons button:hover,#difficulty-select button:hover{color:var(--color-accent-hover)}#mode-buttons button.active,#difficulty-select button.active{border-color:var(--color-player-active);color:var(--color-player-active);background:var(--color-accent-glow)}.player-ai-label{display:inline-block;width:3rem;text-align:center;font-size:.75rem;font-weight:700;letter-spacing:.05em;color:var(--color-player-active);border:1px solid var(--color-player-active);border-radius:3px;padding:.15rem .3rem;transition:color .3s,border-color .3s}#undo-btn{display:flex;align-items:center;justify-content:center;gap:.4rem;align-self:center;background:none;border:1px solid var(--color-text-secondary);color:var(--color-text-secondary);font:inherit;font-size:.85rem;padding:.4rem 1rem;border-radius:var(--radius-sm);cursor:pointer;transition:color .2s,border-color .2s;min-height:44px}#undo-btn:hover:not(:disabled){color:var(--color-accent-hover);border-color:var(--color-accent-hover)}#undo-btn:disabled{opacity:.35;cursor:not-allowed}#game-board{display:flex;flex-wrap:wrap;justify-content:center;flex-direction:column;margin:0;padding:0;gap:0;background-color:var(--color-text-muted);border-radius:var(--radius-md);overflow:hidden;align-self:center}#game-board ol{display:flex;flex-wrap:wrap;justify-content:center;gap:0;margin:0;padding:0}#game-board button{width:clamp(4rem,18vw,8rem);height:clamp(4rem,18vw,8rem);border:none;background:var(--color-board-square);color:var(--color-log-text);font-size:clamp(2.5rem,11vw,5rem);cursor:pointer;font-family:Caprasimo,cursive;padding:1rem;position:relative;border-radius:var(--radius-md);margin:1px;transition:background-color .3s,box-shadow .2s}#game-board button:hover:not(:disabled){box-shadow:0 0 12px var(--color-accent-glow)}#game-board button[data-hover-symbol]:hover:after{content:attr(data-hover-symbol);position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;font-family:Caprasimo,cursive;font-size:clamp(2.5rem,11vw,5rem);color:var(--color-log-text);opacity:.3;pointer-events:none}#game-board button.winning{background:var(--color-accent);color:var(--color-bg-primary);box-shadow:0 0 16px 4px var(--color-accent-glow);animation:pulse-winning 1s infinite ease-in-out}#game-board button.dimmed{opacity:.4}#game-over{width:90%;max-width:45rem;margin:1.5rem auto 0;padding:2rem;display:flex;flex-direction:column;align-items:center;gap:.5rem;background:linear-gradient(var(--color-surface),var(--color-bg-secondary));border:2px solid var(--color-accent);border-radius:var(--radius-md);box-shadow:0 0 24px var(--color-accent-glow);animation:pop-in .4s cubic-bezier(.68,-.55,.65,.52) forwards}#game-over h2{font-family:Caprasimo,cursive;font-size:3rem;text-align:center;color:var(--color-accent);margin:0}#game-over p{font-size:1.5rem;text-align:center;color:var(--color-text-primary);margin:0;transition:color .3s}#game-over button{margin-top:.5rem;font-size:1.25rem;background:none;border:2px solid var(--color-accent);color:var(--color-accent);padding:.5rem 1.5rem;border-radius:var(--radius-sm);cursor:pointer;transition:all .2s,color .2s;box-shadow:var(--shadow-glow)}#game-over button:hover{background:var(--color-accent);color:var(--color-bg-primary);transform:scale(1.1);box-shadow:0 0 20px var(--color-accent-glow)}#log{max-width:20rem;color:var(--color-log-text);list-style:none;margin:1.5rem auto 2rem;padding:0;text-align:center;transition:color .3s}#log li{border-radius:var(--radius-sm);animation:slide-in-from-left 1s cubic-bezier(.075,.82,.165,1) forwards;margin:.75rem}#log li.highlighted{background-color:var(--color-log-highlight-bg);color:#fff}#game-hints{text-align:center;color:var(--color-surface-alt);transition:color .3s}#game-hints h2{font-family:Caprasimo,cursive;font-size:2rem;margin:0}#game-hints ul{list-style:none;padding:0;margin:0}#game-hints button{cursor:pointer;border:none;background:transparent;color:var(--color-text-muted);font:inherit;margin-top:1.5rem;transition:color .3s}@keyframes slide-in-from-left{0%{opacity:0;transform:translate(-30%)}to{opacity:1;transform:translate(0)}}@keyframes pulse-text{0%{color:var(--color-text-primary)}50%{color:var(--color-text-muted)}to{color:var(--color-text-primary)}}@keyframes pulse-text-size{0%{transform:scale(1)}50%{transform:scale(1.05)}to{transform:scale(1)}}@keyframes pulse{0%{border-color:var(--color-player-active);box-shadow:0 0 0 0 var(--color-accent-glow)}50%{border-color:var(--color-accent-hover);box-shadow:0 0 0 .5rem transparent}to{border-color:var(--color-player-active);box-shadow:0 0 0 0 transparent}}@keyframes pulse-winning{0%{box-shadow:0 0 8px 2px var(--color-accent-glow)}50%{box-shadow:0 0 24px 8px var(--color-accent-glow)}to{box-shadow:0 0 8px 2px var(--color-accent-glow)}}@keyframes pop-in{0%{transform:scale(0);opacity:0}80%{transform:scale(1.1);opacity:1}to{transform:scale(1)}}@media (max-width: 480px){header img{width:5rem;margin:1.5rem auto .5rem}h1{font-size:2rem;margin-bottom:1.5rem}#game-container{margin:1rem auto 0;padding:1rem;gap:.5rem}#game-over{margin:.5rem auto 0;padding:1.25rem}#players{flex-direction:column;gap:.75rem;align-items:stretch}#players li{width:100%;justify-content:center}.player-name,.player input{width:auto;flex:1}#players button{min-width:44px;min-height:44px}#game-board{margin:0}#game-over h2{font-size:2.5rem}#game-over p{font-size:1.25rem}#game-over button{min-width:44px;min-height:44px;font-size:1.25rem}}