:root{--bg-base: #121212;--bg-surface: #1a1a1a;--bg-elevated: #242424;--bg-hover: #2e2e2e;--bg-card: #1e1e1e;--text-primary: #ececec;--text-secondary: #a0a0a0;--text-muted: #5a5a5a;--accent: #7cb342;--accent-hover: #8bc34a;--accent-glow: rgba(124, 179, 66, .12);--accent-text: #a5d66b;--danger: #e53935;--danger-hover: #ef5350;--border: #2a2a2a;--border-hover: #3d3d3d;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow: 0 4px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 12px 40px rgba(0, 0, 0, .55);--shadow-glow: 0 0 20px rgba(124, 179, 66, .15);--radius-sm: 6px;--radius: 10px;--radius-lg: 14px;--radius-xl: 18px;--transition: .15s ease;--transition-slow: .25s ease;--font-mono: "SF Mono", "Cascadia Code", "Fira Code", "Consolas", monospace;--cat-bullet: #e8a12a;--cat-blitz: #ef6c00;--cat-rapid: #66bb6a;--cat-classical: #42a5f5}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;width:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--bg-base);color:var(--text-primary);overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-thumb{background-color:#444;border-radius:3px}::-webkit-scrollbar-thumb:hover{background-color:#555}::-webkit-scrollbar-track{background-color:transparent}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:var(--radius);border:1px solid transparent;font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:all var(--transition);outline:none;-webkit-user-select:none;user-select:none;white-space:nowrap;line-height:1.4}.btn:focus-visible{box-shadow:0 0 0 2px var(--accent)}.btn:active{transform:scale(.97)}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);box-shadow:var(--shadow-glow)}.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}.btn-danger:hover{background:var(--danger-hover);border-color:var(--danger-hover)}.btn-ghost{background:var(--bg-elevated);color:var(--text-primary);border-color:var(--border)}.btn-ghost:hover{background:var(--bg-hover);border-color:var(--border-hover)}.btn-lg{padding:14px 28px;font-size:17px;border-radius:var(--radius-lg)}.btn-sm{padding:6px 14px;font-size:13px;border-radius:var(--radius-sm)}.btn:disabled{opacity:.45;cursor:default;pointer-events:none}.card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:24px}.card-elevated{background:var(--bg-elevated)}.input{width:100%;padding:12px 16px;font-size:15px;font-family:inherit;border-radius:var(--radius);border:1px solid var(--border);background-color:var(--bg-base);color:var(--text-primary);outline:none;transition:border-color var(--transition),box-shadow var(--transition)}.input::placeholder{color:var(--text-muted)}.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.input-sm{padding:8px 12px;font-size:14px}.tc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.tc-tile{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:16px 8px;border-radius:var(--radius);border:2px solid var(--border);background:var(--bg-elevated);cursor:pointer;transition:all var(--transition);-webkit-user-select:none;user-select:none;overflow:hidden;min-width:0}.tc-tile:hover{background:var(--bg-hover);border-color:var(--border-hover);transform:translateY(-2px);box-shadow:var(--shadow)}.tc-tile.selected{border-color:var(--accent);background:var(--accent-glow);box-shadow:var(--shadow-glow)}.tc-tile .tc-label{font-size:18px;font-weight:700;color:var(--text-primary);line-height:1.2}.tc-tile .tc-category{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;line-height:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.tc-tile.selected .tc-label{color:#fff}.modal-overlay{position:fixed;inset:0;background:#000000b3;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;justify-content:center;align-items:center;z-index:900;animation:fadeIn .2s ease}.modal-card{position:relative;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);padding:32px 40px;min-width:320px;max-width:440px;text-align:center;animation:slideUp .25s ease}.spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}.spinner-sm{width:20px;height:20px;border-width:2px}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(16px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.timer{padding:10px 20px;border-radius:var(--radius);text-align:center;min-width:220px;transition:background-color var(--transition),color var(--transition);border:1px solid var(--border)}.timer--active{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:var(--shadow-glow)}.timer--inactive{background:var(--bg-elevated);color:var(--text-secondary)}.timer--low{background:var(--danger);border-color:var(--danger);color:#fff;animation:pulse 1s ease infinite}.timer--win{background:#4caf5026;border-color:#4caf50;color:#66bb6a}.timer--loss{background:#e539351a;border-color:#e5393566;color:#ef5350}.timer--draw{background:#ffc1071a;border-color:#ffc10766;color:#ffc107}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.6px}.disconnect-banner{padding:10px 20px;background:var(--danger);border-radius:var(--radius);font-size:14px;font-weight:600;color:#fff;animation:pulse 2s ease infinite;box-shadow:0 0 20px #e539354d}.divider{height:1px;background:var(--border);margin:16px 0}.navbar{position:sticky;top:0;z-index:800;display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:52px;background:var(--bg-surface);border-bottom:1px solid var(--border)}.navbar-logo{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--text-primary);font-weight:700;font-size:16px}.navbar-actions{display:flex;align-items:center;gap:10px}.navbar-icon-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-elevated);color:var(--text-secondary);cursor:pointer;transition:all var(--transition);font-size:16px}.navbar-icon-btn:hover{background:var(--bg-hover);color:var(--text-primary);border-color:var(--border-hover)}.navbar-user{font-size:14px;font-weight:600;color:var(--text-primary)}.tab-bar{display:flex;gap:0;border-bottom:1px solid var(--border);margin-bottom:20px}.tab-bar button{flex:1;padding:12px 16px;font-size:14px;font-weight:600;font-family:inherit;background:none;border:none;border-bottom:2px solid transparent;color:var(--text-secondary);cursor:pointer;transition:all var(--transition)}.tab-bar button:hover{color:var(--text-primary);background:var(--bg-hover)}.tab-bar button.active{color:var(--accent);border-bottom-color:var(--accent)}.select{width:100%;padding:12px 16px;font-size:15px;font-family:inherit;border-radius:var(--radius);border:1px solid var(--border);background-color:var(--bg-base);color:var(--text-primary);outline:none;transition:border-color var(--transition),box-shadow var(--transition);appearance:none;cursor:pointer}.select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.open-games-list{display:flex;flex-direction:column;gap:8px}.open-game-row{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);transition:all var(--transition)}.open-game-row:hover{border-color:var(--border-hover);background:var(--bg-hover)}.open-game-row--joinable{cursor:pointer}.open-game-row--joinable:hover{border-color:var(--accent);box-shadow:0 0 12px #7cb3421a}.open-game-info{display:flex;flex-direction:column;gap:2px}.open-game-name{font-size:14px;font-weight:600;color:var(--text-primary)}.open-game-tc{font-size:12px;color:var(--text-secondary)}.seeking-badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:4px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.6px;background:#7cb3421f;color:var(--accent-text)}.auth-toggle{display:flex;gap:0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);margin-bottom:20px}.auth-toggle button{flex:1;padding:8px 16px;font-size:13px;font-weight:600;font-family:inherit;background:var(--bg-elevated);border:none;color:var(--text-secondary);cursor:pointer;transition:all var(--transition)}.auth-toggle button.active{background:var(--accent);color:#fff}.form-group{margin-bottom:16px;text-align:left}.form-label{display:block;font-size:12px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.8px;margin-bottom:6px}.form-error{margin-bottom:12px;padding:10px 16px;background:#e539351f;border:1px solid rgba(229,57,53,.3);border-radius:var(--radius-sm);color:#ef5350;font-size:13px;text-align:center}.online-indicator{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-secondary)}.online-dot{width:8px;height:8px;border-radius:50%;background:#4caf50;box-shadow:0 0 6px #4caf5099;animation:pulse-dot 2s ease infinite}@keyframes pulse-dot{0%,to{box-shadow:0 0 6px #4caf5099}50%{box-shadow:0 0 12px #4caf50e6}}.online-count{font-weight:600;font-variant-numeric:tabular-nums}.avatar-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:6px}.avatar-option{display:flex;align-items:center;justify-content:center;width:40px;height:40px;font-size:22px;border-radius:var(--radius-sm);border:2px solid var(--border);background:var(--bg-elevated);cursor:pointer;transition:all var(--transition)}.avatar-option:hover{border-color:var(--border-hover);background:var(--bg-hover);transform:scale(1.1)}.avatar-option.selected{border-color:var(--accent);background:var(--accent-glow);box-shadow:0 0 8px #7cb3424d}.leaderboard-container{max-width:800px;margin:0 auto;padding:32px 20px}.leaderboard-title{font-size:24px;font-weight:800;margin-bottom:24px;text-align:center}.leaderboard-table-wrap{overflow-x:auto}.leaderboard-table{width:100%;border-collapse:collapse;font-size:14px}.leaderboard-table th{padding:10px 12px;text-align:left;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--text-secondary);border-bottom:1px solid var(--border)}.leaderboard-table td{padding:12px;border-bottom:1px solid var(--border)}.leaderboard-table tbody tr{transition:background var(--transition)}.leaderboard-table tbody tr:hover{background:var(--bg-elevated)}.lb-rank{font-weight:700;text-align:center;width:48px;font-size:16px}.lb-player-link{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--text-primary);font-weight:600}.lb-player-link:hover{color:var(--accent)}.lb-avatar{font-size:20px}.lb-rating{font-weight:700;color:var(--accent-text);font-variant-numeric:tabular-nums}.lb-win{color:#7cb342}.lb-loss{color:#e53935}.lb-draw{color:var(--text-secondary)}.profile-container{max-width:640px;margin:0 auto;padding:32px 20px}.profile-header{display:flex;align-items:center;gap:20px;margin-bottom:28px}.profile-avatar-large{font-size:52px;width:72px;height:72px;display:flex;align-items:center;justify-content:center;background:var(--bg-elevated);border-radius:var(--radius-lg);border:2px solid var(--border);flex-shrink:0}.profile-info{display:flex;flex-direction:column;gap:4px}.profile-username{font-size:24px;font-weight:800}.profile-rating-badge{display:inline-flex;align-items:center;padding:3px 10px;background:var(--accent-glow);color:var(--accent-text);border-radius:4px;font-size:13px;font-weight:700;width:fit-content}.profile-joined{font-size:13px;color:var(--text-secondary)}.profile-stats-row{display:flex;gap:12px;margin-bottom:28px;flex-wrap:wrap}.profile-stat{flex:1;min-width:80px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px 12px;text-align:center;display:flex;flex-direction:column;gap:4px}.profile-stat-value{font-size:22px;font-weight:800;font-variant-numeric:tabular-nums}.profile-stat-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.6px;color:var(--text-secondary)}.profile-section{margin-bottom:24px}.profile-section-title{font-size:16px;font-weight:700;margin-bottom:12px;color:var(--text-primary)}.profile-h2h{display:flex;align-items:center;gap:8px;font-size:16px;padding:12px 16px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius)}.profile-games-list{display:flex;flex-direction:column;gap:4px}.profile-game-row{display:flex;align-items:center;gap:12px;padding:10px 14px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px}.profile-game-result{font-weight:800;font-size:15px;width:20px;text-align:center}.profile-game-opponent{font-weight:600;flex:1}.profile-game-reason{font-size:12px;color:var(--text-secondary);text-transform:capitalize}.profile-game-date{font-size:12px;color:var(--text-muted);font-variant-numeric:tabular-nums}@keyframes confettiFall{0%{transform:translateY(0) rotate(0);opacity:1}to{transform:translateY(100vh) rotate(720deg);opacity:0}}.spectator-badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:4px;font-size:12px;font-weight:600;background:#ab47bc1f;color:#ce93d8}.live-badge{width:8px;height:8px;border-radius:50%;background:#ef5350;box-shadow:0 0 6px #ef535099;animation:pulse-dot 2s ease infinite}.admin-container{max-width:960px;margin:0 auto;padding:32px 20px}@media(max-width:640px){button,.btn{min-height:44px;min-width:44px}.tc-grid{grid-template-columns:repeat(3,1fr)}.modal-card{margin:16px;padding:24px;min-width:0;width:100%}.avatar-grid{grid-template-columns:repeat(6,1fr)}.profile-stats-row{gap:8px}.profile-stat{min-width:60px;padding:10px 8px}.profile-stat-value{font-size:18px}}@media(max-width:420px){.tc-grid{grid-template-columns:repeat(3,1fr);gap:6px}.tc-tile{padding:12px 4px}.tc-tile .tc-label{font-size:15px}}