:root{--bg: #0f1117;--bg-elev: #161a24;--surface: #1b2130;--surface-hover: #232b3d;--border: #2a3348;--text: #e8ecf4;--text-dim: #9aa5b8;--accent: #7c5cff;--accent-2: #22d3ee;--accent-grad: linear-gradient(135deg, #7c5cff, #22d3ee);--danger: #ff5c7a;--success: #2fd39b;--warn: #f5b84b;--radius: 14px;--radius-sm: 10px;--shadow: 0 10px 30px rgba(0, 0, 0, .35);--font: "Segoe UI", system-ui, -apple-system, sans-serif}[data-theme=light]{--bg: #f4f6fb;--bg-elev: #ffffff;--surface: #ffffff;--surface-hover: #eef1f8;--border: #dfe4ee;--text: #1a2133;--text-dim: #5c6779;--shadow: 0 10px 30px rgba(30, 40, 70, .12)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font);background:radial-gradient(1000px 500px at 80% -10%,rgba(124,92,255,.18),transparent 60%),radial-gradient(900px 500px at -10% 110%,rgba(34,211,238,.14),transparent 60%),var(--bg);color:var(--text);transition:background .3s ease,color .3s ease;min-height:100vh}a{color:var(--accent-2);text-decoration:none}button{font-family:var(--font);cursor:pointer}.app{max-width:1280px;margin:0 auto;padding:0 20px 60px}.nav{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;margin-bottom:18px;border-bottom:1px solid var(--border);flex-wrap:wrap}.nav-brand{display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:700;background:var(--accent-grad);-webkit-background-clip:text;background-clip:text;color:transparent;cursor:pointer;-webkit-user-select:none;user-select:none}.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.nav-link{border:none;background:transparent;color:var(--text-dim);font-size:.95rem;padding:8px 14px;border-radius:var(--radius-sm);transition:background .15s,color .15s}.nav-link:hover{background:var(--surface);color:var(--text)}.nav-link.active{background:var(--surface);color:var(--text);box-shadow:inset 0 0 0 1px var(--border)}.nav-right{display:flex;align-items:center;gap:8px}.page-title{font-size:1.9rem;font-weight:800;margin:8px 0 4px}.page-sub{color:var(--text-dim);margin:0 0 24px}.grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}.game-card{position:relative;display:flex;flex-direction:column;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;cursor:pointer;transition:transform .15s,border-color .15s,box-shadow .15s;overflow:hidden}.game-card:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:var(--shadow)}.game-card-icon{font-size:2.2rem;line-height:1}.game-card h3{margin:0;font-size:1.15rem}.game-card p{margin:0;color:var(--text-dim);font-size:.9rem;flex:1}.game-card .badges{display:flex;gap:6px;flex-wrap:wrap}.badge{font-size:.7rem;padding:3px 9px;border-radius:999px;background:var(--bg-elev);border:1px solid var(--border);color:var(--text-dim);text-transform:uppercase;letter-spacing:.05em}.badge.online{background:#22d3ee24;color:var(--accent-2);border-color:#22d3ee66}.btn{border:1px solid var(--border);background:var(--bg-elev);color:var(--text);padding:10px 18px;border-radius:var(--radius-sm);font-size:.95rem;transition:background .15s,transform .1s,border-color .15s}.btn:hover{background:var(--surface-hover)}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent-grad);border:none;color:#fff;font-weight:600}.btn-primary:hover{filter:brightness(1.1);background:var(--accent-grad)}.btn-danger{background:transparent;border-color:var(--danger);color:var(--danger)}.btn-danger:hover{background:#ff5c7a1f}.btn-lg{padding:14px 28px;font-size:1.05rem}.input{background:var(--bg-elev);border:1px solid var(--border);color:var(--text);padding:10px 14px;border-radius:var(--radius-sm);font-size:1rem;outline:none;transition:border-color .15s}.input:focus{border-color:var(--accent)}.field{display:flex;flex-direction:column;gap:6px}.field label{font-size:.85rem;color:var(--text-dim)}.game-shell{max-width:720px;margin:0 auto}.game-header{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:16px;flex-wrap:wrap}.game-status{font-size:1.05rem;font-weight:600;color:var(--text);min-height:1.4em}.game-area{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;display:flex;flex-direction:column;align-items:center;gap:18px}.game-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}.ttt-board{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:min(320px,100%)}.ttt-cell{aspect-ratio:1;border:none;border-radius:var(--radius-sm);background:var(--bg-elev);font-size:2.6rem;font-weight:800;display:flex;align-items:center;justify-content:center;transition:background .12s,transform .1s}.ttt-cell:not(:disabled):hover{background:var(--surface-hover);transform:scale(1.03)}.ttt-cell.x{color:var(--accent)}.ttt-cell.o{color:var(--accent-2)}.ttt-cell.win{background:#2fd39b29}.c4-board{display:flex;flex-direction:column;gap:6px;padding:10px;background:var(--bg-elev);border-radius:var(--radius)}.c4-row{display:flex;gap:6px}.c4-slot{width:52px;height:52px;border-radius:50%;background:var(--bg);border:1px solid var(--border);transition:background .12s,transform .1s}.c4-slot.x{background:radial-gradient(circle at 35% 30%,#b69aff,var(--accent))}.c4-slot.o{background:radial-gradient(circle at 35% 30%,#8ee6f7,var(--accent-2))}.c4-col:hover .c4-slot{box-shadow:0 0 0 3px #7c5cff59}.c4-col:disabled{cursor:not-allowed}.c4-col{background:transparent;border:none;padding:0;display:flex;flex-direction:column;gap:6px}@media(max-width:560px){.c4-slot{width:40px;height:40px}}.memory-grid{display:grid;gap:10px;width:100%;justify-items:center}.memory-card{aspect-ratio:3/4;width:100%;max-width:96px;border:none;border-radius:var(--radius-sm);background:var(--accent-grad);color:#fff;font-size:2rem;display:flex;align-items:center;justify-content:center;transition:transform .25s;transform-style:preserve-3d;position:relative}.memory-card.flipped{background:var(--bg-elev);border:1px solid var(--border)}.memory-card.matched{opacity:.55;cursor:default}.memory-card:not(.flipped):not(.matched):hover{transform:scale(1.05)}.hangman-stage{font-family:Consolas,Courier New,monospace;font-size:.85rem;line-height:1.15;white-space:pre;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 16px;color:var(--text);-webkit-user-select:none;user-select:none}.hangman-word{display:flex;gap:8px;font-size:2rem;font-weight:800;letter-spacing:.05em;flex-wrap:wrap;justify-content:center}.hangman-letter{width:1.2em;text-align:center;border-bottom:3px solid var(--text-dim);padding-bottom:2px;min-height:1.2em}.hangman-letter.revealed{border-bottom-color:var(--accent)}.hangman-letters{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;max-width:520px}.hangman-key{width:38px;height:38px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-elev);color:var(--text);font-size:1rem;text-transform:uppercase;transition:background .12s}.hangman-key:hover:not(:disabled){background:var(--surface-hover)}.hangman-key:disabled{opacity:.35;cursor:not-allowed}.hangman-key.correct{background:#2fd39b33;border-color:var(--success);color:var(--success)}.hangman-key.wrong{background:#ff5c7a1f;border-color:var(--danger);color:var(--danger)}.reaction-pad{width:min(360px,100%);aspect-ratio:1;border:none;border-radius:var(--radius);font-size:1.2rem;font-weight:700;color:#fff;transition:background .08s;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px}.reaction-pad.ready{background:var(--danger)}.reaction-pad.go{background:var(--success)}.reaction-pad.wait{background:var(--accent)}.reaction-pad:disabled{cursor:not-allowed}.snake-wrap{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);padding:10px;display:inline-block}.snake-grid{display:grid;gap:1px;background:var(--border)}.snake-cell{width:18px;height:18px;background:var(--bg)}.snake-cell.snake{background:var(--success);border-radius:3px}.snake-cell.head{background:var(--accent-2);border-radius:3px}.snake-cell.food{background:var(--danger);border-radius:50%}@media(max-width:560px){.snake-cell{width:14px;height:14px}}.stat-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}.stat-box{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px}.stat-box .value{font-size:1.5rem;font-weight:800;background:var(--accent-grad);-webkit-background-clip:text;background-clip:text;color:transparent}.stat-box .label{font-size:.78rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:.06em}.lb-table{width:100%;border-collapse:collapse}.lb-table th{text-align:left;color:var(--text-dim);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;padding:10px 12px;border-bottom:1px solid var(--border)}.lb-table td{padding:10px 12px;border-bottom:1px solid var(--border)}.lb-table tr.me{background:#7c5cff1a}.lb-rank{font-weight:800;width:40px}.lb-rank.top{color:var(--warn)}.lb-name{font-weight:600}.lb-points{font-weight:800;color:var(--accent-2)}.mp-panel{max-width:640px;margin:0 auto;display:flex;flex-direction:column;gap:18px}.mp-status{text-align:center;padding:30px 16px;color:var(--text-dim)}.mp-game-select{display:grid;grid-template-columns:1fr 1fr;gap:10px}.mp-game-option{display:flex;flex-direction:column;align-items:center;gap:8px;padding:18px 12px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-elev);color:var(--text);cursor:pointer;font-size:.95rem;font-weight:600;transition:border-color .15s,transform .15s}.mp-game-option:hover{border-color:var(--accent);transform:translateY(-2px)}.mp-game-option.active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.mp-game-icon{font-size:1.7rem}.mp-join-row{display:flex;gap:10px;align-items:stretch}.mp-code-input{flex:1;font-family:var(--font-mono, monospace);letter-spacing:.12em;text-transform:uppercase}.mp-code-big{font-family:var(--font-mono, monospace);font-size:2.6rem;font-weight:800;letter-spacing:.25em;padding:14px 20px;border:2px dashed var(--accent);border-radius:var(--radius-sm);color:var(--accent);cursor:pointer;-webkit-user-select:all;user-select:all;margin:6px 0}.mp-opponents{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:center;width:100%}.mp-vs{text-align:center;font-weight:800;color:var(--text-dim)}.mp-avatar{display:flex;flex-direction:column;align-items:center;gap:4px;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px}.mp-avatar .ring{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.2rem;color:#fff}.mp-avatar.you .ring{background:var(--accent-grad)}.mp-avatar.opp .ring{background:linear-gradient(135deg,#ff9a3d,#ff5c7a)}.mp-avatar .who{font-size:.72rem;color:var(--text-dim)}.mp-avatar .nm{font-weight:600;font-size:.92rem;max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mp-turn{font-size:.9rem;color:var(--text-dim)}.mp-pulse{animation:pulse 1.4s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.45}}.dg-board{background:#f4f1e8;border:1px solid #e2dcc8;border-radius:18px;padding:18px;box-shadow:var(--shadow)}.dg-topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}.dg-round{font-size:.9rem;font-weight:700;color:#8a7f66;background:#fff;border:1px solid #e2dcc8;border-radius:999px;padding:6px 14px;white-space:nowrap}.dg-round-sub{font-weight:600;color:#a89c84}.dg-word-boxes{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;flex:1;min-width:0}.dg-box{width:38px;height:46px;display:flex;align-items:center;justify-content:center;font-size:1.6rem;font-weight:800;color:#3d3d3d;background:#fff;border:2px solid #d9d2bc;border-bottom-width:4px;border-radius:8px}.dg-clock{font-family:var(--font-mono, monospace);font-size:1.15rem;font-weight:800;color:#3d3d3d;background:#fff;border:1px solid #e2dcc8;border-radius:999px;padding:6px 16px;white-space:nowrap}.dg-clock.danger{color:#ff5c7a;border-color:#ff5c7a;animation:pulse 1s ease-in-out infinite}.dg-body{display:grid;grid-template-columns:168px minmax(0,1fr) 176px;gap:14px;align-items:start}@media(max-width:900px){.dg-body{grid-template-columns:1fr}.dg-side{order:2}}.dg-players{display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid #e2dcc8;border-radius:14px;padding:10px}.dg-player{display:flex;align-items:center;gap:10px;padding:6px 8px;border-radius:10px;font-size:.9rem;font-weight:600;color:#3d3d3d}.dg-player.you{background:#f0ede1}.dg-avatar{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.8rem;font-weight:800;flex-shrink:0}.dg-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dg-host{font-size:.72rem;font-weight:700;color:#b8860b}.dg-pin{font-weight:800;font-size:.95rem;color:#3d3d3d}.dg-rank{font-weight:800;color:#a89c84;min-width:20px}.dg-canvas-wrap{position:relative;min-width:0}.dg-canvas{width:100%;height:auto;aspect-ratio:4 / 3;background:#fff;border-radius:12px;border:2px solid #d9d2bc;touch-action:none;display:block}.dg-side{display:flex;flex-direction:column;gap:12px}.dg-tools{display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid #e2dcc8;border-radius:14px;padding:12px}.dg-colors{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.dg-color{width:100%;aspect-ratio:1;border-radius:50%;border:2px solid rgba(0,0,0,.15);cursor:pointer;transition:transform .12s,box-shadow .12s}.dg-color.active{transform:scale(1.12);box-shadow:0 0 0 2px #fff,0 0 0 4px #7c5cff}.dg-size-label{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:#8a7f66}.dg-sizes{display:flex;gap:10px;align-items:center}.dg-size-btn{width:36px;height:36px;border-radius:50%;background:#f0ede1;border:2px solid transparent;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .12s,border-color .12s}.dg-size-btn.active{border-color:#7c5cff;transform:scale(1.1)}.dg-size-dot{background:#3d3d3d;border-radius:50%}.dg-guess-feed{display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid #e2dcc8;border-radius:14px;padding:10px;min-height:90px}.dg-guess{font-size:.85rem;color:#5c5645;background:#f7f4ea;border-radius:10px;padding:6px 10px}.dg-guess.correct{background:#e6f4ea;color:#1e7d46;font-weight:700}.dg-guess-input-row{display:flex;flex-direction:column;gap:8px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#05070cb3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:50;padding:20px}.modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px;width:100%;max-width:420px;display:flex;flex-direction:column;gap:14px}.modal h2{margin:0}.toasts{position:fixed;bottom:20px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;gap:8px;z-index:60;width:min(92vw,420px)}.toast{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:var(--radius-sm);padding:12px 16px;box-shadow:var(--shadow);animation:slideUp .25s ease}.toast.error{border-left-color:var(--danger)}.toast.success{border-left-color:var(--success)}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.muted{color:var(--text-dim)}.center{text-align:center}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.spacer{flex:1}.winner-banner{text-align:center;padding:14px;border-radius:var(--radius-sm);font-weight:700;font-size:1.1rem;width:100%}.winner-banner.win{background:#2fd39b24;color:var(--success);border:1px solid rgba(47,211,155,.4)}.winner-banner.loss{background:#ff5c7a1f;color:var(--danger);border:1px solid rgba(255,92,122,.4)}.winner-banner.draw{background:#f5b84b1f;color:var(--warn);border:1px solid rgba(245,184,75,.4)}