:root{--ink:#203c38;--muted:#64756d;--green:#285e4b;--paper:#fffdf8;--line:#dedfd4;--wash:#f4f3ec;--gold:#bc8640}*{box-sizing:border-box}body{margin:0;background:var(--wash);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"PingFang SC",sans-serif}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button,.button{min-height:44px;padding:10px 18px;border:1px solid var(--green);border-radius:10px;background:var(--green);color:white;font-weight:700;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:6px}button:disabled{opacity:.5;cursor:not-allowed}.secondary{color:var(--green);background:transparent;border-color:#b8c9bf}.danger{background:#9c4138;border-color:#9c4138}a{color:inherit}.wrap{width:min(1180px,calc(100% - 40px));margin:auto}.top{border-bottom:1px solid var(--line);background:#f4f3ecf5;position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0}.brand{font-weight:850;text-decoration:none;font-size:18px;letter-spacing:-.02em}.top nav{display:flex;gap:18px}.top nav a{min-height:44px;display:inline-flex;align-items:center;font-size:14px;text-decoration:none}.hero{padding:64px 0 38px;display:flex;align-items:end;justify-content:space-between;gap:30px;border-bottom:1px solid var(--line)}.eyebrow{font-size:11px;letter-spacing:.18em;color:var(--green);font-weight:750}h1{font-size:clamp(36px,6vw,65px);line-height:1.15;letter-spacing:-.05em;margin:12px 0}h2{font-size:27px;line-height:1.3;margin:0 0 12px}h3{margin:0 0 8px;font-size:20px}p{margin:8px 0;color:var(--muted)}.hero-mark{font-size:100px;line-height:1.2;color:var(--green)}section{margin:28px 0}.panel{border:1px solid var(--line);border-radius:16px;background:var(--paper);padding:24px;min-width:0}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.field{display:grid;gap:6px;margin-top:14px}label{font-size:13px;font-weight:700}input,select{width:100%;min-height:44px;border:1px solid #bdcbbf;border-radius:9px;padding:10px 12px;background:#fff;color:var(--ink);min-width:0}input[type=checkbox]{width:auto;min-height:20px}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.actions{margin-top:18px}.note{min-height:1.5em;font-size:13px;overflow-wrap:anywhere}.error{color:#a63930!important}.section-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:30px 0 15px}.section-head h2{margin:0}.tag{font-size:12px;padding:4px 9px;border-radius:20px;background:#e5ede1;color:#355b45;white-space:nowrap}.room-list{display:grid;gap:10px}.room-row{display:flex;align-items:center;justify-content:space-between;gap:15px;border:1px solid var(--line);border-radius:12px;padding:16px 18px;background:var(--paper)}.room-row p{font-size:13px;margin:4px 0}.room-row b{overflow-wrap:anywhere}.empty{padding:25px;text-align:center;border:1px dashed #bbc7b9;border-radius:12px;color:var(--muted)}.account-name{font-size:20px;font-weight:800}.compact{font-size:13px}.tabbar{display:flex;gap:8px;margin:15px 0;flex-wrap:wrap}.tabbar button{background:transparent;color:var(--ink);border-color:var(--line)}.tabbar button[aria-selected=true]{background:var(--green);color:white}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;text-align:left;font-variant-numeric:tabular-nums;white-space:nowrap}th,td{padding:12px 14px;border-bottom:1px solid var(--line)}th{font-size:12px;color:var(--muted)}tbody tr:nth-child(1) td:first-child{color:var(--gold);font-weight:800}footer{padding:35px 20px;text-align:center;font-size:13px;color:var(--muted)}[hidden]{display:none!important}.game-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:22px;margin:24px 0}.game-main{min-width:0}.chat-panel{align-self:start;position:sticky;top:90px;padding:18px}.chat-panel summary{font-weight:800;cursor:pointer;list-style:none}.chat-messages{height:285px;overflow-y:auto;padding:12px 0;display:flex;flex-direction:column;gap:10px}.message{padding:9px 11px;border-radius:10px;background:#eff1e9;font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere}.message b{display:block;font-size:11px;color:var(--muted)}.message.mine{background:#e2ecdf;margin-left:12px}.message.theirs{margin-right:12px}.chat-form{display:flex;gap:6px;margin:10px 0}.chat-form input{width:100%}.chat-form button{padding:8px 12px}.voice-box{border-top:1px solid var(--line);margin-top:16px;padding-top:16px}.voice-box .row{gap:6px}.voice-box button{font-size:12px;padding:8px 10px}.voice-note{font-size:12px}.game-title{font-size:24px;margin:0}.status{margin:0 0 16px;padding:13px 16px;background:#e6ecdf;border-radius:12px;font-weight:800}.players{display:flex;justify-content:space-between;gap:8px;margin:16px 0}.players>div{min-width:0}.players b{display:block;overflow-wrap:anywhere}.players small{color:var(--muted);font-size:12px}.board-frame{padding:14px;border-radius:16px;background:#e5dcc6;border:1px solid #c8b99a}.chess-board{width:min(100%,560px);aspect-ratio:1;margin:auto;display:grid;grid-template-columns:repeat(8,1fr);border:1px solid #baa780}.square{border:0!important;border-radius:0!important;min-height:0!important;min-width:0!important;padding:0!important;aspect-ratio:1;font-size:clamp(24px,4.2vw,49px);font-family:"DejaVu Sans","Arial Unicode MS","Segoe UI Symbol",serif;font-weight:400;line-height:1;position:relative;display:grid;place-items:center;color:#14261e}.square.light{background:#f1ebd5}.square.dark{background:#8b9e74}.square.white-piece{color:#fffdf2;text-shadow:0 1px 1px #18261e,1px 0 1px #18261e,-1px 0 1px #18261e,0 -1px 1px #18261e}.square.selected{box-shadow:inset 0 0 0 4px #d49d31}.square.last{background:#d4c989}.square.legal:after{content:'';width:20%;height:20%;border-radius:50%;background:#183f4660;position:absolute}.square small{position:absolute;left:3px;bottom:2px;font:9px system-ui;color:#324830;text-shadow:none}.gomoku-board{width:min(100%,580px);aspect-ratio:1;display:grid;grid-template-columns:repeat(15,1fr);margin:auto;background:#dabe85;border:1px solid #ad8751}.go-cell{aspect-ratio:1;position:relative;min-height:0!important;min-width:0!important;border:0;border-radius:0;background:transparent;padding:0;color:#212629;display:grid;place-items:center}.go-cell:before{content:'';position:absolute;inset:0;background:linear-gradient(transparent calc(50% - .5px),#796847 calc(50% - .5px),#796847 calc(50% + .5px),transparent calc(50% + .5px)),linear-gradient(90deg,transparent calc(50% - .5px),#796847 calc(50% - .5px),#796847 calc(50% + .5px),transparent calc(50% + .5px))}.stone{position:relative;width:86%;height:86%;border-radius:50%;box-shadow:1px 2px 3px #45392270}.stone.black{background:radial-gradient(circle at 32% 25%,#4b5350,#151e1a 65%)}.stone.white{background:radial-gradient(circle at 32% 25%,#fff,#e8e5d8 65%);border:1px solid #b8b5a9}.go-cell.last .stone:after{content:'';position:absolute;width:20%;height:20%;left:40%;top:40%;border-radius:50%;background:#d26e45}.go-cell.selected{background:#e5d993}.go-cell.selected:after{content:'+';font-size:22px;z-index:1;color:#a94429}.go-cell.win{background:#dfb53c}.move-actions{display:flex;gap:8px;justify-content:center;margin:13px 0}.move-log{margin-top:18px;font-size:13px;max-height:110px;overflow:auto;word-break:break-word}.invite-box{padding:16px;background:#fff7db;border:1px solid #dfc575;border-radius:12px;margin-bottom:18px}.room-code{font:800 clamp(19px,3vw,26px) ui-monospace,monospace;letter-spacing:.09em;overflow-wrap:anywhere}.result-box{border:1px solid #a7ba90;border-radius:12px;background:#f1f6e9;padding:18px;margin:16px 0}.modal::backdrop{background:#13251980}.modal{max-width:calc(100% - 30px);border:1px solid #b5c5a6;border-radius:16px;padding:24px;background:var(--paper);color:var(--ink)}.modal button{font-size:24px}.account-gate{margin:25px auto;text-align:center;padding:30px}.credit-panel{padding:15px;border:1px solid var(--line);border-radius:10px}.credit-row{display:flex;gap:8px;flex-wrap:wrap}.credit-row input{flex:1;min-width:150px}.credit-balance{display:flex;gap:20px;flex-wrap:wrap}.credit-note{font-size:13px}@media(max-width:850px){.game-layout{grid-template-columns:220px minmax(0,1fr)}.grid3{grid-template-columns:1fr}.hero-mark{font-size:72px}.square{font-size:clamp(24px,5vw,44px)}}@media(max-width:650px){.wrap{width:calc(100% - 24px)}.top .wrap{padding:8px 0}.brand{font-size:15px}.top nav{gap:10px}.top nav .optional{display:none}.hero{padding:35px 0 25px}.hero-mark{display:none}.panel{padding:18px}.grid2{grid-template-columns:1fr}.game-layout{display:flex;flex-direction:column;gap:12px;margin-top:15px}.game-main{order:0}.chat-panel{order:1;position:static}.chat-messages{height:210px}.board-frame{padding:5px;border-radius:8px}.square{font-size:clamp(24px,8.5vw,44px)}.game-title{font-size:21px}.players{font-size:14px}.players b{max-width:160px}.room-row{align-items:flex-start;flex-direction:column}.room-row button{width:100%}.row{gap:7px}section{margin:18px 0}th,td{padding:10px}.room-code{font-size:21px}.top a{font-size:13px}.actions button{flex:1}h2{font-size:23px}}

.row.field{display:flex}

/* 26.9.106: a hidden chat column must not constrain the board. */
body[data-page="game"]>.top .wrap,body[data-page="game"]>main.wrap{width:min(1500px,calc(100% - 48px))}
.game-layout{grid-template-columns:300px minmax(0,1fr);align-items:start;gap:28px}
.game-layout.solo-layout{grid-template-columns:minmax(0,1fr);max-width:1100px;margin-inline:auto}
.game-main{grid-column:2;min-width:0}.solo-layout>.game-main{grid-column:1}
.board-frame{width:min(100%,810px);margin-inline:auto;padding:18px}
.chess-board,.gomoku-board{width:100%;max-width:770px;grid-auto-rows:1fr}
.square{font-size:clamp(30px,5.2vw,72px)}
@media(max-width:1000px) and (min-width:701px){.game-layout{grid-template-columns:225px minmax(0,1fr);gap:16px}.chat-panel{padding:14px}.board-frame{padding:9px}.square{font-size:clamp(29px,5vw,55px)}}
@media(max-width:700px){body[data-page="game"]>.top .wrap,body[data-page="game"]>main.wrap{width:calc(100% - 20px)}.game-layout{display:flex;flex-direction:column;gap:14px}.game-main,.chat-panel{width:100%}.game-main{order:0}.chat-panel{order:1;position:static}.board-frame{padding:5px}.square{font-size:clamp(25px,8.7vw,55px)}.players b{max-width:44vw}}

/* 26.9.124: keep the grid behind each stone and force both stone colors visible. */
.go-cell:before{z-index:0}.stone{z-index:3;display:block;width:82%;height:auto;aspect-ratio:1/1;min-width:8px;min-height:8px;flex:none;box-shadow:1px 2px 4px #45392299}.stone.black{background:radial-gradient(circle at 32% 25%,#66706c 0,#111815 62%,#050807 100%);border:1px solid #050807}.stone.white{background:radial-gradient(circle at 32% 25%,#fff 0,#f0ede2 62%,#d2cec0 100%);border:1px solid #8f8b80}
.club-toast-v124{position:fixed;z-index:9999;left:50%;bottom:30px;transform:translate(-50%,20px);padding:12px 18px;border-radius:999px;background:#173d32;color:#fff;font-weight:800;box-shadow:0 12px 35px #10251f55;opacity:0;pointer-events:none;transition:.2s ease}.club-toast-v124.show{opacity:1;transform:translate(-50%,0)}