:root{--bg: #161512;--bg-elevated: #1f1e1b;--bg-card: #262522;--bg-hover: #2f2e2a;--border: #3a3936;--text: #e8e6e3;--text-muted: #9a9894;--accent: #6b9d3f;--accent-hover: #7fb54c;--accent-text: #0f1a08;--danger: #c0392b;--danger-hover: #d9463b;--win: #6b9d3f;--loss: #c0392b;--draw: #9a9894;--warn: #f0b429;--judge-best: #8cc152;--judge-inaccuracy: #dbc75e;--judge-mistake: #f0b429;--judge-blunder: #f2796a;--eval-white: #d7d5d0;--eval-black: #7b7975;--eval-line: #f2f0ed;--radius: 8px;--shadow: 0 2px 12px rgba(0, 0, 0, .35);font-family:Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif;font-size:15px;color-scheme:dark}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{background:var(--bg);color:var(--text);line-height:1.45;overflow-x:hidden}a{color:inherit;text-decoration:none}a:hover{color:#fff}h1,h2,h3{margin:0 0 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var(--border)}.segmented button:last-child{border-right:none}.segmented button.active{background:var(--bg-hover);color:var(--text);font-weight:600}.tag{display:inline-block;padding:2px 8px;border-radius:999px;background:var(--bg-hover);color:var(--text-muted);font-size:.8rem;font-weight:600}.tag-rated{background:#6b9d3f33;color:var(--accent-hover)}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}.toast{position:fixed;top:70px;left:50%;transform:translate(-50%);background:var(--danger);color:#fff;padding:10px 18px;border-radius:6px;z-index:50;box-shadow:var(--shadow);font-weight:600}.banner{background:#f0b42926;border:1px solid rgba(240,180,41,.5);border-radius:var(--radius);padding:10px 16px;margin-bottom:16px;display:flex;align-items:center;gap:12px}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:8px 10px;text-align:left;border-bottom:1px solid var(--border)}.table 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li a{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:8px 12px;flex-wrap:wrap}.game-list li a:hover{background:var(--bg-hover)}.game-players{font-weight:600}.game-meta{display:flex;gap:12px;align-items:center;font-size:.9rem;flex-wrap:wrap}.game-meta .result{font-weight:700;font-variant-numeric:tabular-nums}.game-page{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:20px;align-items:start}.game-board-col{display:flex;flex-direction:column;gap:8px;width:min(100%,calc(100vh - 200px));margin:0 auto}.board-wrap{position:relative;width:100%;user-select:none;-webkit-user-select:none}.playerbar{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:6px 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var(--border);color:var(--text);border-radius:4px;padding:2px 8px;font-size:.8rem}.movelist-nav button:hover:not(:disabled){background:var(--bg-hover)}.movelist-body{overflow-y:auto;padding:6px 0;flex:1}.movelist-empty{text-align:center;color:var(--text-muted);padding:20px}.move-row{display:grid;grid-template-columns:40px 1fr 1fr;align-items:center}.move-row:nth-child(2n){background:#ffffff05}.move-no{color:var(--text-muted);text-align:right;padding-right:8px;font-size:.85rem}.move{background:transparent;border:none;color:var(--text);text-align:left;padding:4px 8px;font-family:SFMono-Regular,Consolas,Menlo,monospace;font-size:.95rem;border-radius:4px}.move:hover{background:var(--bg-hover)}.move.current{background:var(--accent);color:var(--accent-text);font-weight:700}.move.placeholder{display:block}.game-actions{display:flex;flex-direction:column;gap:10px}.action-row{display:flex;gap:8px;flex-wrap:wrap}.action-row .btn{flex:1}.draw-offer{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:10px 12px;background:#f0b4291f;border:1px solid rgba(240,180,41,.5);border-radius:var(--radius);font-size:.9rem}.promotion-overlay{position:absolute;inset:0;background:#0000008c;display:flex;align-items:center;justify-content:center;z-index:10;border-radius:4px}.promotion-dialog{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:16px;text-align:center;box-shadow:var(--shadow)}.promotion-title{font-weight:600;margin-bottom:10px}.promotion-pieces{display:flex;gap:8px}.promotion-piece{width:64px;height:64px;font-size:2.6rem;line-height:1;background:#f0d9b5;color:#111;border:2px solid transparent;border-radius:8px}.promotion-piece:hover{border-color:var(--accent);background:#fff2dc}.profile-card{margin-bottom:16px}.profile-head{display:flex;gap:16px;align-items:center;margin-bottom:16px}.avatar{width:64px;height:64px;border-radius:50%;background:var(--accent);color:var(--accent-text);display:flex;align-items:center;justify-content:center;font-size:1.8rem;font-weight:700}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px}.stat{background:var(--bg-elevated);border-radius:var(--radius);padding:10px;display:flex;flex-direction:column;align-items:center}.stat-value{font-size:1.4rem;font-weight:700;font-variant-numeric:tabular-nums}.stat-label{font-size:.8rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em}.profile-grid{display:grid;grid-template-columns:1fr 1.6fr;gap:16px;align-items:start}.history-list{list-style:none;margin:0;padding:0}.history-list li a{display:flex;gap:12px;align-items:center;padding:6px 4px;border-bottom:1px solid var(--border)}.history-list li:last-child a{border-bottom:none}.history-list li a:hover{background:var(--bg-hover)}.history-list .muted{margin-left:auto;font-size:.85rem}@media(max-width:960px){.game-page{grid-template-columns:1fr}.game-side{position:static}.lobby-grid,.profile-grid{grid-template-columns:1fr}.lobby-pairing,.lobby-seeks,.lobby-challenge,.lobby-computer,.lobby-top,.lobby-recent{grid-column:1;grid-row:auto}}@media(max-width:600px){.topbar{flex-wrap:wrap;height:auto;gap:8px;padding:8px 10px}.nav{order:3;width:100%;justify-content:space-between}.nav a{padding:4px 8px;font-size:.9rem;white-space:nowrap}.topbar-right{gap:6px}.topbar-right .btn{padding:6px 10px;font-size:.9rem}.user-chip{padding:4px 8px}.main{padding:12px}.clock{font-size:1.25rem;min-width:90px}.user-chip .user-rating{display:none}}.chat{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);display:flex;flex-direction:column;min-height:160px;max-height:32vh}.chat-header{padding:8px 12px;border-bottom:1px solid var(--border);font-weight:600;font-size:.9rem;color:var(--text-muted)}.chat-body{flex:1;overflow-y:auto;padding:8px 12px;display:flex;flex-direction:column;gap:6px}.chat-empty{color:var(--text-muted);text-align:center;padding:16px 0;font-size:.9rem}.chat-line{display:grid;grid-template-columns:auto 1fr auto;gap:6px;align-items:baseline;font-size:.9rem}.chat-who{font-weight:600;color:var(--text);white-space:nowrap}.chat-line.mine .chat-who{color:var(--accent-hover)}.chat-spectator{color:var(--text-muted);font-weight:500}.chat-role{font-weight:400;font-size:.85em}.chat-text{overflow-wrap:anywhere}.chat-at{color:var(--text-muted);font-size:.75rem;white-space:nowrap}.chat-form{display:flex;gap:6px;padding:8px;border-top:1px solid var(--border)}.chat-form input{flex:1;min-width:0;background:var(--bg-elevated);border:1px solid var(--border);border-radius:6px;color:var(--text);padding:6px 10px}.chat-form input:focus{outline:none;border-color:var(--accent)}.analysis{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px 12px;display:flex;flex-direction:column;gap:10px}.analysis-head{display:flex;justify-content:space-between;align-items:baseline;font-weight:600;font-size:.9rem;color:var(--text-muted)}.analysis-progress{display:flex;flex-direction:column;gap:6px}.meter{background:var(--bg-hover);border-radius:999px;height:8px;overflow:hidden}.meter-fill{background:var(--accent);height:100%;border-radius:999px;transition:width .25s ease-out}.analysis-accuracy{display:flex;flex-direction:column;gap:6px}.accuracy-row{display:grid;grid-template-columns:minmax(60px,1fr) 2fr auto;gap:8px;align-items:center;font-size:.9rem}.accuracy-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.accuracy-value{font-variant-numeric:tabular-nums;color:var(--text-muted)}.analysis-counts{display:flex;flex-wrap:wrap;gap:6px}.count-chip{font-size:.78rem;border:1px solid var(--border);border-radius:999px;padding:1px 8px;color:var(--text-muted)}.analysis-move{display:flex;justify-content:space-between;gap:8px;font-size:.9rem;border-top:1px solid var(--border);padding-top:8px}.judgment-best{color:var(--judge-best)}.judgment-inaccuracy{color:var(--judge-inaccuracy)}.judgment-mistake{color:var(--judge-mistake)}.judgment-blunder{color:var(--judge-blunder)}.count-chip.judgment-inaccuracy{border-color:var(--judge-inaccuracy)}.count-chip.judgment-mistake{border-color:var(--judge-mistake)}.count-chip.judgment-blunder{border-color:var(--judge-blunder)}.move-glyph{font-weight:700;margin-left:1px}.eval-graph-wrap{display:flex;flex-direction:column;gap:2px}.eval-graph-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px;font-size:.85rem;color:var(--text-muted)}.eval-graph-body{display:flex;align-items:stretch;gap:6px}.eval-axis-y{display:flex;flex-direction:column;justify-content:space-between;font-size:.72rem;line-height:1;padding:2px 0}.eval-graph{display:block;flex:1;min-width:0;width:100%;height:auto;background:var(--bg-elevated);border-radius:4px;cursor:crosshair;touch-action:pan-y}.eval-area-white{fill:var(--eval-white);opacity:.9}.eval-area-black{fill:var(--eval-black);opacity:.9}.eval-mid{stroke:var(--text-muted);stroke-width:1;opacity:.45}.eval-line{fill:none;stroke:var(--eval-line);stroke-width:2;stroke-linejoin:round;stroke-linecap:round}.eval-cross{stroke:var(--text-muted);stroke-width:1;stroke-dasharray:2 2}.eval-dot{fill:var(--accent-hover);stroke:var(--bg-elevated);stroke-width:2}.challenge-form{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:6px}.challenge-form input,.challenge-form select{background:var(--bg-elevated);border:1px solid var(--border);border-radius:6px;color:var(--text);padding:7px 10px;min-width:0}.challenge-form input{flex:1 1 130px}.challenge-form select{flex:0 1 140px}.challenge-form input:focus,.challenge-form select:focus{outline:none;border-color:var(--accent)}.lobby-challenge h3{margin:12px 0 6px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em}.challenge-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.challenge-list li{display:flex;align-items:center;gap:8px;flex-wrap:wrap;background:var(--bg-elevated);border:1px solid var(--border);border-radius:6px;padding:6px 10px}.challenge-actions{margin-left:auto;display:flex;gap:6px}