:root{--bg-deep: #070b16;--bg: #0b1120;--panel: rgba(23, 32, 54, .82);--panel-solid: #172036;--border: rgba(120, 145, 190, .22);--border-strong: rgba(120, 145, 190, .4);--text: #e8edf7;--muted: #93a2be;--dim: #6b7a97;--primary: #22c55e;--primary-dark: #16a34a;--primary-glow: rgba(34, 197, 94, .35);--danger: #ef4444;--danger-dark: #dc2626;--gold: #eab308;--blue: #3b82f6;--radius: 16px;--radius-sm: 10px;--shadow: 0 18px 44px rgba(0, 0, 0, .45);--shadow-sm: 0 6px 18px rgba(0, 0, 0, .3)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:Segoe UI,Tahoma,system-ui,-apple-system,sans-serif;color:var(--text);min-height:100vh;background-color:var(--bg-deep);background-image:radial-gradient(900px 500px at 15% -10%,rgba(34,197,94,.14),transparent 60%),radial-gradient(900px 600px at 90% 10%,rgba(59,130,246,.16),transparent 60%),linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(180deg,var(--bg) 0%,var(--bg-deep) 100%);background-size:auto,auto,68px 68px,68px 68px,auto;background-attachment:fixed}.app-shell{min-height:100vh;display:flex;flex-direction:column}.app-main{flex:1}.page{display:flex;flex-direction:column;align-items:center;padding:28px 16px}.app-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 22px;border-bottom:1px solid var(--border);background:#0b1120b8;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:sticky;top:0;z-index:40;flex-wrap:wrap}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:800;font-size:1.15rem}.brand-icon{font-size:1.6rem;filter:drop-shadow(0 0 10px var(--primary-glow))}.nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.nav-link{display:inline-flex;align-items:center;gap:6px;color:var(--muted);text-decoration:none;padding:8px 12px;border-radius:var(--radius-sm);font-weight:600;transition:color .15s,background .15s}.nav-link:hover{color:var(--text);background:#ffffff0d}.nav-link.active{color:var(--primary);background:#22c55e1a}.app-footer{display:flex;align-items:center;justify-content:center;gap:10px;padding:20px;color:var(--dim);font-size:.85rem;border-top:1px solid var(--border)}.app-footer strong{color:var(--primary)}.footer-dot{opacity:.5}.card{background:var(--panel);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px}.home-card{width:100%;max-width:440px;margin-top:4vh;text-align:center}.auth-card{width:100%;max-width:420px;margin-top:3vh}.wide-card{width:100%;max-width:860px;margin-top:2vh}.home-title{font-size:2.1rem;margin:0 0 6px;letter-spacing:-.5px}.home-sub{color:var(--muted);margin:0 0 26px}.section-title{font-size:1.5rem;margin:0 0 18px}.section-title.no-margin{margin:0}.subsection-title{font-size:1.1rem;margin:26px 0 12px;color:var(--muted)}.muted{color:var(--muted)}.dim{color:var(--dim)}.center{text-align:center}.small-note{font-size:.86rem;margin-top:16px}.hint{display:block;color:var(--dim);font-size:.78rem;margin-top:5px}a{color:var(--primary)}button{font-family:inherit;cursor:pointer;border:none;border-radius:var(--radius-sm);padding:12px 18px;font-size:1rem;font-weight:700;transition:background .15s,transform .06s,opacity .15s,box-shadow .15s}button:active{transform:translateY(1px)}button:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(180deg,var(--primary),var(--primary-dark));color:#042713;box-shadow:0 6px 18px var(--primary-glow);text-decoration:none;display:inline-block;text-align:center}.btn-primary:hover:not(:disabled){filter:brightness(1.07)}.btn-danger{background:linear-gradient(180deg,var(--danger),var(--danger-dark));color:#fff}.btn-ghost{background:transparent;border:1px solid var(--border-strong);color:var(--text)}.btn-ghost:hover:not(:disabled){background:#ffffff0f}.btn-sm{padding:8px 14px;font-size:.88rem}.block{display:block;width:100%}.big{padding:15px;font-size:1.1rem}.field{text-align:right;margin-bottom:16px}.field label{display:block;margin-bottom:7px;color:var(--muted);font-size:.9rem;font-weight:600}input[type=text],input[type=email],input[type=password]{font-family:inherit;width:100%;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:#070b16bf;color:var(--text);font-size:1rem;transition:border-color .15s,box-shadow .15s}input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}.alert-error{background:#ef44441f;border:1px solid rgba(239,68,68,.4);color:#fca5a5;padding:11px 14px;border-radius:var(--radius-sm);font-size:.9rem;margin-bottom:14px}.alert-inline{color:var(--danger);font-size:.85rem;margin-top:10px}.logged-box{background:#22c55e14;border:1px solid rgba(34,197,94,.28);border-radius:var(--radius-sm);padding:14px;margin-bottom:18px}.logged-label{font-size:.8rem;color:var(--muted)}.logged-name{display:flex;align-items:center;justify-content:center;gap:8px;font-size:1.25rem;font-weight:800;margin:4px 0}.elo-chip{background:#eab30829;color:var(--gold);border:1px solid rgba(234,179,8,.35);border-radius:999px;padding:2px 9px;font-size:.75rem;font-weight:700}.online-badge{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:.9rem;margin-top:20px}.dot{width:10px;height:10px;border-radius:50%;background:var(--dim)}.dot.on{background:var(--primary);box-shadow:0 0 10px var(--primary)}.searching{margin-top:18px;display:flex;flex-direction:column;gap:14px;align-items:center}.spinner{width:36px;height:36px;border:4px solid var(--border-strong);border-top-color:var(--primary);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.table-scroll{overflow-x:auto}.data-table{width:100%;border-collapse:collapse;font-size:.92rem}.data-table th{text-align:right;color:var(--muted);font-weight:600;font-size:.82rem;padding:10px 12px;border-bottom:1px solid var(--border-strong);white-space:nowrap}.data-table td{padding:11px 12px;border-bottom:1px solid var(--border);white-space:nowrap}.data-table tbody tr:hover{background:#ffffff08}.top-row{background:#eab3080d}.rank{font-size:1.05rem;font-weight:700;color:var(--muted)}.elo-cell{color:var(--gold);font-weight:800}.win{color:var(--primary);font-weight:700}.loss{color:var(--danger);font-weight:700}.player-link{color:var(--text);text-decoration:none;font-weight:700}.player-link:hover{color:var(--primary)}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.76rem;font-weight:700}.badge-win{background:#22c55e29;color:var(--primary)}.badge-loss{background:#ef444429;color:#fca5a5}.badge-draw{background:#94a3b829;color:var(--muted)}.profile-head{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding-bottom:20px;border-bottom:1px solid var(--border)}.avatar{width:62px;height:62px;border-radius:50%;display:grid;place-items:center;font-size:1.7rem;font-weight:800;color:#042713;background:linear-gradient(140deg,var(--primary),var(--blue))}.elo-badge{margin-inline-start:auto;text-align:center;background:#eab3081a;border:1px solid rgba(234,179,8,.3);border-radius:var(--radius-sm);padding:10px 18px}.elo-value{display:block;font-size:1.6rem;font-weight:800;color:var(--gold)}.elo-label{font-size:.75rem;color:var(--muted)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:20px}.stat{background:#070b1699;border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px;text-align:center}.stat-value{display:block;font-size:1.5rem;font-weight:800}.stat-label{font-size:.78rem;color:var(--muted)}.game-layout{width:100%;max-width:1000px;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}.board-col{display:flex;flex-direction:column;gap:12px}.board-wrap{width:100%;max-width:560px;margin:0 auto;direction:ltr}.turn-banner{text-align:center;padding:11px;border-radius:var(--radius-sm);font-weight:800}.turn-you{background:#22c55e24;color:var(--primary);border:1px solid rgba(34,197,94,.4)}.turn-them{background:#ffffff0a;color:var(--muted);border:1px solid var(--border)}.side-col{display:flex;flex-direction:column;gap:14px}.moves{background:#070b1699;border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px}.moves h3{margin:0 0 10px;font-size:.92rem;color:var(--muted);display:flex;align-items:center;gap:8px}.move-count{background:#ffffff12;border-radius:999px;padding:1px 8px;font-size:.74rem;color:var(--dim)}.moves-scroll{max-height:250px;overflow-y:auto;scroll-behavior:smooth}.no-moves{margin:0;font-size:.85rem}.move-list{display:grid;grid-template-columns:30px 1fr 1fr;gap:5px 8px;font-size:.9rem}.move-num{color:var(--dim)}.move-cell{padding:1px 6px;border-radius:5px}.move-cell.last{background:#eab3082e;color:var(--gold);font-weight:700}.challenge-wait{display:flex;flex-direction:column;align-items:center;gap:12px;margin-top:8px}.link-box{display:flex;gap:8px;width:100%}.link-box input{flex:1;font-size:.82rem;direction:ltr;text-align:left;padding:10px 12px}.challenge-box{background:#22c55e14;border:1px solid rgba(34,197,94,.28);border-radius:var(--radius-sm);padding:18px;display:flex;flex-direction:column;align-items:center;gap:4px}.challenger-name{font-size:1.35rem;font-weight:800;color:var(--primary)}.challenge-meta{margin-top:8px}.tc-badge{display:inline-block;background:#eab30829;color:var(--gold);border:1px solid rgba(234,179,8,.35);border-radius:999px;padding:4px 14px;font-weight:800;direction:ltr}.clock{font-family:Segoe UI,Consolas,monospace;font-variant-numeric:tabular-nums;font-size:1.35rem;font-weight:800;letter-spacing:.5px;padding:6px 14px;border-radius:var(--radius-sm);background:#ffffff0d;border:1px solid var(--border);color:var(--muted);min-width:92px;text-align:center;transition:background .2s,color .2s,border-color .2s;direction:ltr}.clock-running{background:#ffffff1f;color:var(--text);border-color:var(--border-strong)}.clock-low.clock-running{background:#ef444429;color:#fca5a5;border-color:#ef444480;animation:clockPulse 1s ease-in-out infinite}@keyframes clockPulse{50%{box-shadow:0 0 0 3px #ef444424}}.tc-section{margin-bottom:18px;text-align:right}.tc-title{display:block;margin-bottom:8px;color:var(--muted);font-size:.9rem;font-weight:600}.tc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.tc-btn{display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 6px;background:#070b1699;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-weight:700;transition:border-color .15s,background .15s,transform .06s}.tc-btn:hover{border-color:var(--border-strong);background:#ffffff0d}.tc-btn.selected{border-color:var(--primary);background:#22c55e1f;box-shadow:0 0 0 1px var(--primary) inset}.tc-value{font-size:1.05rem;direction:ltr}.tc-cat{font-size:.7rem;color:var(--muted);font-weight:600}.captured{display:flex;align-items:center;gap:2px;min-height:24px;flex-wrap:wrap;padding:0 4px}.captured.empty{min-height:24px}.captured-group{display:inline-flex;margin-inline-end:5px}.captured-piece{font-size:1.15rem;line-height:1;margin-inline-start:-4px}.captured-piece.white{color:#f1f5f9;text-shadow:0 1px 2px rgba(0,0,0,.6)}.captured-piece.black{color:#64748b}.advantage{margin-inline-start:6px;font-size:.82rem;font-weight:800;color:var(--primary)}.actions{display:flex;gap:10px}.actions button{flex:1}.banner{padding:11px 13px;border-radius:var(--radius-sm);font-size:.88rem;text-align:center}.banner-warn{background:#eab3081f;color:var(--gold);border:1px solid rgba(234,179,8,.4)}.banner-info{background:#ffffff0a;color:var(--muted);border:1px solid var(--border)}.player-info{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 13px;border-radius:var(--radius-sm);border:1px solid var(--border);background:#070b1699;transition:border-color .2s,box-shadow .2s}.player-info.active{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary) inset,0 0 18px #22c55e26}.player-left{display:flex;align-items:center;gap:10px}.piece-chip{width:22px;height:22px;border-radius:6px;border:1px solid var(--border-strong)}.piece-white{background:#f1f5f9}.piece-black{background:#0f172a}.player-name{font-weight:700}.you-tag{font-size:.75rem;color:var(--primary)}.conn{font-size:.76rem;color:var(--primary)}.conn.off{color:var(--danger)}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#030712c7;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}.overlay .card{max-width:390px;width:100%;text-align:center}.result-title{font-size:1.7rem;margin:0 0 6px}.result-reason{color:var(--muted);margin:0 0 22px}@media (max-width: 860px){.game-layout{grid-template-columns:1fr}.side-col{order:2}.stats-grid{grid-template-columns:repeat(2,1fr)}.app-header{padding:12px 14px}.brand-text{display:none}.page{padding:18px 12px}.card{padding:20px}}