:root{--primary: #6366f1;--primary-dark: #4f46e5;--primary-light: #eef2ff;--success: #10b981;--success-light: #d1fae5;--warning: #f59e0b;--danger: #ef4444;--danger-light: #fee2e2;--bg: #f1f5f9;--surface: #ffffff;--text: #1e293b;--text-muted: #94a3b8;--border: #e2e8f0;--radius: 12px;--radius-sm: 8px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);--shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);--shadow-lg: 0 10px 25px rgba(0,0,0,.1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}button{padding:10px 20px;border:none;border-radius:var(--radius-sm);background:var(--primary);color:#fff;font-size:14px;font-weight:500;cursor:pointer;transition:all .15s ease}button:hover{background:var(--primary-dark);transform:translateY(-1px)}button:active{transform:translateY(0)}button:disabled{opacity:.5;cursor:not-allowed;transform:none}button.secondary{background:var(--primary-light);color:var(--primary);border:1px solid transparent}button.secondary:hover{background:#dde4ff;border-color:var(--primary)}button.success{background:var(--success)}button.success:hover{background:#059669}button.danger{background:var(--danger)}button.danger:hover{background:#dc2626}button.outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}button.outline:hover{background:var(--primary-light)}button.large{padding:14px 28px;font-size:16px;border-radius:var(--radius)}input[type=text]{padding:12px 16px;border:2px solid var(--border);border-radius:var(--radius-sm);font-size:15px;outline:none;width:100%;transition:border-color .15s}input[type=text]:focus{border-color:var(--primary);box-shadow:0 0 0 3px #6366f11a}.home-card{background:var(--surface);border-radius:var(--radius);padding:40px 36px;box-shadow:var(--shadow-lg);max-width:400px;width:100%}.home-title{font-size:28px;margin-bottom:4px}.home-subtitle{color:var(--text-muted);font-size:14px;margin-bottom:28px}.room-code{font-size:52px;font-weight:800;letter-spacing:10px;color:var(--primary);font-family:SF Mono,Cascadia Code,monospace;background:var(--primary-light);padding:12px 32px;border-radius:var(--radius);-webkit-user-select:all;user-select:all}.player-list{list-style:none;padding:0}.player-list li{padding:10px 14px;border-radius:var(--radius-sm);margin-bottom:6px;font-size:14px;display:flex;align-items:center;gap:8px;transition:background .15s}.player-list li.owner{background:var(--primary-light);font-weight:600}.player-list li .avatar{width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;flex-shrink:0}.canvas-container{border:2px solid var(--border);border-radius:var(--radius);background:#fff;overflow:hidden;box-shadow:var(--shadow)}.canvas-container canvas{display:block;width:100%;height:100%;touch-action:none}.toolbar{display:flex;gap:8px;padding:10px 0;align-items:center;flex-wrap:wrap}.toolbar .color-btn{width:28px;height:28px;border-radius:50%;border:2px solid transparent;cursor:pointer;padding:0;transition:transform .1s}.toolbar .color-btn:hover{transform:scale(1.15)}.toolbar .color-btn.active{border-color:var(--text);box-shadow:0 0 0 2px #fff,0 0 0 4px var(--text)}.toolbar .separator{width:1px;height:24px;background:var(--border);margin:0 4px}.toolbar input[type=range]{width:80px;accent-color:var(--primary)}.sidebar{width:260px;border-left:1px solid var(--border);display:flex;flex-direction:column;background:var(--surface)}.sidebar .timer{text-align:center;padding:16px;font-size:36px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;transition:color .3s}.sidebar .timer.urgent{color:var(--danger);animation:pulse .5s ease-in-out infinite alternate}.sidebar .hint{text-align:center;padding:8px 12px;font-size:22px;letter-spacing:6px;font-weight:600;color:var(--text-muted);min-height:40px}.sidebar .score-header{padding:8px 12px;border-bottom:1px solid var(--border);font-size:13px;font-weight:600;color:var(--text-muted)}.sidebar .score-list{font-size:13px;padding:4px 12px}.sidebar .score-list div{padding:3px 0;display:flex;justify-content:space-between}.sidebar .chat-messages{flex:1;overflow-y:auto;padding:8px 12px;font-size:13px;display:flex;flex-direction:column;gap:4px}.sidebar .chat-messages div{padding:4px 8px;border-radius:var(--radius-sm)}.sidebar .chat-messages .correct{color:var(--success);font-weight:600;background:var(--success-light);padding:6px 10px}.sidebar .chat-messages .system{color:var(--text-muted);font-style:italic;font-size:12px}.sidebar .chat-input{display:flex;gap:6px;padding:10px;border-top:1px solid var(--border)}.sidebar .chat-input input{flex:1;padding:8px 12px;font-size:13px}.sidebar .chat-input button{padding:8px 14px;font-size:13px}.overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#0f172a80;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;z-index:100;animation:fadeIn .2s ease}.overlay-card{background:#fff;border-radius:var(--radius);padding:36px;text-align:center;min-width:320px;box-shadow:var(--shadow-lg);animation:slideUp .25s ease}.ranking-list{list-style:none;padding:0;margin:16px 0}.ranking-list li{display:flex;justify-content:space-between;align-items:center;padding:12px 18px;border-radius:var(--radius-sm);margin-bottom:6px;font-size:16px}.ranking-list li:nth-child(1){background:#fef3c7;font-weight:700;font-size:18px;box-shadow:var(--shadow)}.ranking-list li:nth-child(2){background:#f1f5f9}.ranking-list li:nth-child(3){background:#f8fafc}.ranking-list li .rank-medal{font-size:24px;margin-right:8px}.word-options{display:flex;gap:12px;justify-content:center;margin:20px 0}.word-btn{padding:16px 32px;border-radius:var(--radius);border:2px solid var(--primary);background:#fff;color:var(--primary);font-size:18px;font-weight:600;cursor:pointer;transition:all .15s}.word-btn:hover{background:var(--primary);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}.flex-center{display:flex;align-items:center;justify-content:center}.flex-col{display:flex;flex-direction:column}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.text-sm{font-size:13px}.full-h{height:100vh}.game-layout{display:flex;height:100vh}.game-main{flex:1;display:flex;flex-direction:column;padding:12px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%{opacity:1}to{opacity:.6}}@keyframes bounceIn{0%{transform:scale(.3);opacity:0}50%{transform:scale(1.05)}70%{transform:scale(.95)}to{transform:scale(1);opacity:1}}@media (max-width: 768px){button{padding:12px 18px;font-size:15px}button.large{padding:16px 24px;font-size:17px}input[type=text]{padding:14px 16px;font-size:16px}.home-card{max-width:100%;margin:0 16px;padding:32px 24px;border-radius:var(--radius)}.home-title{font-size:24px}.room-code{font-size:36px;letter-spacing:6px;padding:10px 20px}#page-lobby>div{flex-direction:column!important;max-width:100%!important;margin:0 12px}#page-lobby aside{flex:0 0 auto!important;border-right:none!important;border-bottom:1px solid var(--border);padding:16px!important}#page-lobby main{padding:28px 20px!important}.player-list{display:flex;flex-wrap:wrap;gap:6px}.player-list li{margin-bottom:0;font-size:13px;padding:6px 10px}.game-layout{flex-direction:column;height:auto;min-height:100vh}.game-main{flex:none;height:55vh;min-height:300px;padding:8px}.canvas-container{border-radius:var(--radius-sm)}.sidebar{width:100%!important;border-left:none;border-top:1px solid var(--border);flex:1;min-height:40vh;flex-direction:column}.sidebar .timer{font-size:24px;padding:10px}.sidebar .hint{font-size:18px;letter-spacing:4px;padding:6px;min-height:auto}.sidebar .chat-messages{max-height:150px;font-size:14px}.sidebar .chat-input{padding:8px}.sidebar .chat-input input{font-size:16px;padding:10px 12px}.sidebar .chat-input button{padding:10px 16px;font-size:14px}.toolbar{gap:4px;padding:6px 0;overflow-x:auto}.toolbar .color-btn{width:24px;height:24px}.toolbar button{padding:6px 10px;font-size:13px}.overlay-card{min-width:auto;width:calc(100% - 32px);padding:24px}.word-options{flex-wrap:wrap;gap:8px}.word-btn{padding:14px 20px;font-size:16px;flex:1;min-width:80px}.ranking-list li{font-size:14px;padding:10px 14px}.ranking-list li:nth-child(1){font-size:16px}.rank-medal{font-size:20px!important}}@media (max-width: 400px){.home-card{padding:24px 16px;margin:0 8px}.room-code{font-size:28px;letter-spacing:4px}.game-main{height:45vh;min-height:250px}.sidebar .chat-messages{max-height:120px}.sidebar .timer{font-size:20px}.sidebar .hint{font-size:16px}}.admin-page{min-height:100vh;background:#f8f9fb;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,sans-serif}.admin-login-wrapper{min-height:100vh;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;background:linear-gradient(135deg,#1a1a2e,#16213e 40%,#0f3460)}.admin-login-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse at 20% 50%,rgba(99,102,241,.15) 0%,transparent 50%),radial-gradient(ellipse at 80% 20%,rgba(139,92,246,.1) 0%,transparent 50%),radial-gradient(ellipse at 50% 80%,rgba(59,130,246,.08) 0%,transparent 50%)}.admin-login-card{position:relative;z-index:1;background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:16px;padding:48px 40px;width:100%;max-width:400px;box-shadow:0 25px 60px #0000004d,0 0 0 1px #ffffff1a;text-align:center;animation:adminFadeUp .5s ease}.admin-login-icon{width:64px;height:64px;margin:0 auto 20px;border-radius:16px;background:linear-gradient(135deg,#6366f1,#8b5cf6);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 8px 24px #6366f159}.admin-login-title{font-size:22px;font-weight:700;color:#1e293b;margin-bottom:4px}.admin-login-sub{font-size:14px;color:#94a3b8;margin-bottom:28px}.admin-login-field{text-align:left;margin-bottom:8px}.admin-login-field input{width:100%;padding:12px 16px;border:2px solid #e2e8f0;border-radius:10px;font-size:15px;outline:none;transition:all .2s;background:#f8fafc}.admin-login-field input:focus{border-color:#6366f1;box-shadow:0 0 0 3px #6366f11f;background:#fff}.admin-login-error{font-size:13px;color:#ef4444;margin-bottom:8px;min-height:20px;opacity:0;transition:opacity .2s}.admin-login-error.show{opacity:1}.admin-btn-primary{padding:10px 22px;border:none;border-radius:8px;background:linear-gradient(135deg,#6366f1,#4f46e5);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;gap:6px;letter-spacing:.3px}.admin-btn-primary:hover{background:linear-gradient(135deg,#4f46e5,#4338ca);box-shadow:0 4px 12px #6366f14d;transform:translateY(-1px)}.admin-btn-outline{padding:9px 20px;border:1.5px solid #d1d5db;border-radius:8px;background:#fff;color:#374151;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;gap:6px}.admin-btn-outline:hover{border-color:#6366f1;color:#6366f1;background:#eef2ff}.admin-btn-ghost{padding:9px 20px;border:none;border-radius:8px;background:transparent;color:#6b7280;font-size:13px;font-weight:500;cursor:pointer;transition:all .15s;display:inline-flex;align-items:center;justify-content:center;gap:6px}.admin-btn-ghost:hover{background:#f3f4f6;color:#374151}.admin-btn-danger{padding:10px 22px;border:none;border-radius:8px;background:#ef4444;color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}.admin-btn-danger:hover{background:#dc2626;box-shadow:0 4px 12px #ef44444d}.admin-btn-full{width:100%;justify-content:center}.admin-btn-sm{padding:5px 12px;border:1px solid #e2e8f0;border-radius:6px;background:#fff;color:#4b5563;font-size:12px;font-weight:500;cursor:pointer;transition:all .15s}.admin-btn-sm:hover{border-color:#6366f1;color:#6366f1;background:#eef2ff}.admin-btn-sm-del:hover{border-color:#ef4444;color:#ef4444;background:#fef2f2}.admin-dash{display:flex;min-height:100vh}.admin-sidebar{width:220px;min-width:220px;background:linear-gradient(180deg,#1e1b4b,#172033);color:#fff;display:flex;flex-direction:column;padding:0}.admin-sidebar-brand{display:flex;align-items:center;gap:10px;padding:22px 20px;font-size:15px;font-weight:700;letter-spacing:.5px;border-bottom:1px solid rgba(255,255,255,.08);color:#fff}.admin-sidebar-brand svg{flex-shrink:0;stroke:#818cf8}.admin-sidebar-nav{flex:1;padding:12px 10px;display:flex;flex-direction:column;gap:2px}.admin-sidebar-nav a{padding:9px 12px;border-radius:8px;font-size:13px;font-weight:500;color:#ffffffa6;cursor:pointer;transition:all .15s;text-decoration:none;display:block}.admin-sidebar-nav a:hover{color:#fff;background:#ffffff0f}.admin-sidebar-nav a.active{color:#fff;background:#6366f14d;font-weight:600}.admin-sidebar-footer{padding:12px 10px;border-top:1px solid rgba(255,255,255,.08)}.admin-sidebar-footer .admin-btn-ghost{color:#ffffff80;font-size:12px}.admin-sidebar-footer .admin-btn-ghost:hover{color:#fff;background:#ffffff0f}.admin-main{flex:1;display:flex;flex-direction:column;min-width:0}.admin-topbar{display:flex;justify-content:space-between;align-items:center;padding:20px 28px;background:#fff;border-bottom:1px solid #e5e7eb;flex-wrap:wrap;gap:12px}.admin-topbar-left{display:flex;align-items:center;gap:14px}.admin-topbar-left h1{font-size:20px;font-weight:700;color:#1e293b}.admin-badge{padding:4px 10px;border-radius:20px;background:#eef2ff;color:#4f46e5;font-size:12px;font-weight:600}.admin-topbar-right{display:flex;align-items:center;gap:8px}.admin-toolbar{padding:14px 28px;display:flex;align-items:center;border-bottom:1px solid #f1f5f9}.admin-toolbar-filter{display:flex;align-items:center;gap:8px;color:#94a3b8}.admin-toolbar-filter select{padding:8px 32px 8px 12px;border:1.5px solid #e2e8f0;border-radius:8px;font-size:13px;font-weight:500;color:#374151;background:#fff;outline:none;cursor:pointer;transition:border-color .2s;-moz-appearance:none;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center}.admin-toolbar-filter select:focus{border-color:#6366f1}.admin-table-wrap{padding:20px 28px;flex:1}.admin-loading{text-align:center;color:#94a3b8;padding:60px 0;font-size:14px}.admin-table{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 1px 3px #0000000a;border:1px solid #f1f5f9}.admin-table th{text-align:left;padding:12px 18px;background:#fafbfc;color:#64748b;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;border-bottom:1px solid #e5e7eb}.admin-table td{padding:12px 18px;border-bottom:1px solid #f3f4f6;font-size:14px;color:#374151}.admin-table tbody tr{transition:background .12s}.admin-table tbody tr:hover{background:#f8fafc}.admin-table tbody tr:last-child td{border-bottom:none}.col-id{width:60px;color:#94a3b8;font-size:13px;font-variant-numeric:tabular-nums}.col-act{width:140px;white-space:nowrap}.col-act .admin-btn-sm+.admin-btn-sm{margin-left:4px}.word-tag{display:inline-block;padding:3px 10px;background:#f1f5f9;border-radius:5px;font-weight:600;color:#1e293b;font-size:14px}.cat-tag{display:inline-block;padding:2px 8px;border-radius:4px;background:#eef2ff;color:#4f46e5;font-size:12px;font-weight:500}.admin-empty{text-align:center;padding:64px 24px;color:#94a3b8}.admin-empty svg{stroke:#cbd5e1;margin-bottom:16px}.admin-empty p{font-size:15px;font-weight:600;color:#64748b;margin-bottom:4px}.admin-empty span{font-size:13px}.admin-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;background:#0f172a73;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;animation:adminFadeIn .15s ease}.admin-modal{background:#fff;border-radius:14px;width:100%;max-width:460px;box-shadow:0 25px 50px #0003;animation:adminScaleIn .2s ease;overflow:hidden}.admin-modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid #f1f5f9}.admin-modal-header h3{font-size:16px;font-weight:700;color:#1e293b}.admin-modal-close{width:30px;height:30px;border:none;border-radius:8px;background:transparent;color:#94a3b8;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s}.admin-modal-close:hover{background:#f1f5f9;color:#374151}.admin-modal-body{padding:22px}.admin-field{margin-bottom:16px}.admin-field label{display:block;font-size:13px;font-weight:600;color:#4b5563;margin-bottom:6px}.admin-field input{width:100%;padding:10px 14px;border:1.5px solid #e2e8f0;border-radius:8px;font-size:14px;outline:none;transition:all .2s}.admin-field input:focus{border-color:#6366f1;box-shadow:0 0 0 3px #6366f11a}.admin-field-error{font-size:13px;color:#ef4444;opacity:0;transition:opacity .2s;min-height:0}.admin-field-error.show{opacity:1;min-height:auto}.admin-modal-footer{display:flex;justify-content:flex-end;gap:8px;padding:14px 22px;background:#fafbfc;border-top:1px solid #f1f5f9}.admin-delete-icon{width:64px;height:64px;margin:0 auto 16px;border-radius:50%;background:#fef2f2;display:flex;align-items:center;justify-content:center;color:#ef4444}.admin-delete-msg{color:#4b5563;font-size:14px;line-height:1.6}@keyframes adminFadeUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes adminFadeIn{0%{opacity:0}to{opacity:1}}@keyframes adminScaleIn{0%{opacity:0;transform:scale(.96) translateY(8px)}to{opacity:1;transform:scale(1) translateY(0)}}@media (max-width: 768px){.admin-sidebar{display:none}.admin-topbar{padding:14px 16px}.admin-topbar-left h1{font-size:17px}.admin-topbar-right{width:100%}.admin-topbar-right .admin-btn-outline,.admin-topbar-right .admin-btn-ghost{display:none}.admin-toolbar{padding:10px 16px}.admin-table-wrap{padding:12px 8px}.admin-table th,.admin-table td{padding:8px 10px;font-size:13px}.col-act{width:auto}.admin-login-card{margin:0 16px;padding:36px 24px}.admin-modal{max-width:calc(100% - 32px)}}