*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:radial-gradient(circle at 60% 42%,rgba(113,54,211,.2),transparent 34%),#050507;color:#fff;font-family:Arial,Helvetica,sans-serif}body{overflow-x:hidden}.chess-header{position:fixed;top:12px;left:50%;transform:translateX(-50%);width:calc(100% - 28px);max-width:1840px;height:70px;z-index:100;display:flex;align-items:center;gap:24px;padding:0 22px;background:rgba(35,36,52,.95);border:1px solid rgba(255,255,255,.08);border-radius:12px;box-shadow:0 12px 32px rgba(0,0,0,.35);backdrop-filter:blur(10px)}.brand-link{width:134px;min-width:134px;height:70px;display:flex;align-items:center;overflow:hidden}.brand-link img{height:44px;width:auto;max-width:128px;object-fit:contain;display:block}.chess-header nav{display:flex;align-items:center;gap:8px}.chess-header a,.chess-header button{color:#fff;text-decoration:none;font-weight:800}.chess-header nav>a,.nav-dropbtn{display:flex;align-items:center;height:46px;padding:0 16px;border:0;border-radius:9px;background:transparent;font-size:17px;text-transform:none;letter-spacing:0}.chess-header nav>a:hover,.nav-dropbtn:hover{background:rgba(255,255,255,.09)}.nav-dropdown{position:relative}.nav-dropdown-menu{display:none;position:absolute;top:48px;left:0;min-width:210px;padding:8px;background:#242535;border:1px solid rgba(255,255,255,.1);border-radius:10px;box-shadow:0 16px 40px rgba(0,0,0,.45)}.nav-dropdown:hover .nav-dropdown-menu,.nav-dropdown:focus-within .nav-dropdown-menu{display:grid}.nav-dropdown-menu a{padding:11px 12px;border-radius:7px}.nav-dropdown-menu a:hover{background:rgba(255,255,255,.08)}.chess-header .agn-account-root{margin-left:auto}
.chess-page{min-height:100vh;padding:102px 24px 28px;display:grid;grid-template-columns:minmax(280px,370px) minmax(420px,720px);gap:clamp(26px,4vw,72px);align-items:center;justify-content:center}.chess-info{width:100%;padding:24px;border:1px solid rgba(255,255,255,.12);border-radius:22px;background:rgba(0,0,0,.62);box-shadow:0 0 36px rgba(113,54,211,.16)}.eyebrow{margin:0 0 14px;color:rgba(255,255,255,.66);text-transform:uppercase;letter-spacing:.22em;font-size:.76rem}.subtext{margin:0;color:rgba(255,255,255,.72);line-height:1.55}.mode-switch{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:20px}.mode-switch button.is-active{background:#7136d3;border-color:#9c6cf4}.mode-panel{min-height:150px}.controls,.chess-tools,.dialog-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}button{border:1px solid rgba(255,255,255,.22);border-radius:999px;background:rgba(255,255,255,.07);color:#fff;padding:10px 16px;cursor:pointer;font-weight:800}button:hover,button:focus{background:rgba(113,54,211,.28);outline:none}button:disabled{opacity:.45;cursor:not-allowed}.room-entry{display:grid;gap:12px;margin-top:18px}.join-row{display:grid;grid-template-columns:1fr auto;gap:8px}.join-row input{min-width:0;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:#11121a;color:#fff;padding:11px 14px;text-transform:uppercase;font-weight:800;letter-spacing:.12em}.room-lobby{margin-top:16px;padding:14px;border:1px solid rgba(255,255,255,.1);border-radius:14px;background:rgba(255,255,255,.04)}.room-code-line{display:flex;align-items:center;gap:9px;margin-bottom:12px}.room-code-line b{font-size:1.25rem;letter-spacing:.18em}.room-code-line button{margin-left:auto;padding:7px 12px}.lobby-player{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:9px;padding:9px 0;border-top:1px solid rgba(255,255,255,.08)}.lobby-player small{color:rgba(255,255,255,.66)}.presence-dot{width:9px;height:9px;border-radius:50%;background:#6a6b75}.presence-dot.is-online{background:#55d67a;box-shadow:0 0 12px rgba(85,214,122,.6)}.chess-tools{padding-top:16px;border-top:1px solid rgba(255,255,255,.09)}.status{min-height:26px;margin:18px 0 0;font-size:1.06rem;font-weight:800}.connection-status{min-height:22px;margin:6px 0 0;color:#bca7e8;font-size:.9rem;line-height:1.45}
.board-column{min-width:0;display:flex;flex-direction:column;align-items:stretch;gap:10px}.board{width:min(calc(100vh - 190px),56vw,720px);aspect-ratio:1;display:grid;grid-template-columns:repeat(8,1fr);overflow:hidden;border-radius:16px;border:1px solid rgba(255,255,255,.15);box-shadow:0 0 0 1px rgba(255,255,255,.05),0 0 44px rgba(113,54,211,.24)}.square{position:relative;display:grid;place-items:center;aspect-ratio:1;font-size:clamp(2rem,4vw,4.15rem);line-height:1;user-select:none;cursor:pointer}.square.light{background:#d8d2c1}.square.dark{background:#34303a}.square.selected{outline:4px solid rgba(130,72,255,.98);outline-offset:-4px}.square.last-move{box-shadow:inset 0 0 0 999px rgba(255,211,63,.18)}.square.legal::after{content:"";width:24%;height:24%;border-radius:50%;background:rgba(113,54,211,.72);position:absolute}.square.capture::after{content:"";width:82%;height:82%;border-radius:50%;border:4px solid rgba(113,54,211,.78);position:absolute}.white-piece{color:#fafafa;text-shadow:0 2px 2px rgba(0,0,0,.78)}.black-piece{color:#111;text-shadow:0 1px 0 rgba(255,255,255,.22)}.square:disabled{cursor:default}.player-strip{display:flex;align-items:center;gap:10px;min-height:52px;padding:8px 12px;border:1px solid rgba(255,255,255,.1);border-radius:13px;background:rgba(22,22,30,.92)}.player-strip.is-turn{border-color:#9363ed;box-shadow:0 0 18px rgba(113,54,211,.24)}.player-avatar{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:#7136d3;font-weight:900;overflow:hidden}.player-avatar img{width:100%;height:100%;object-fit:cover}.player-strip div{display:grid;gap:2px}.player-strip small{color:rgba(255,255,255,.62)}.replay-bar{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;background:#242535;border:1px solid rgba(255,255,255,.1)}
.overlay{position:fixed;inset:0;z-index:400;display:grid;place-items:center;padding:18px;background:rgba(0,0,0,.76);backdrop-filter:blur(5px)}.overlay[hidden]{display:none}.dialog{position:relative;width:min(92vw,520px);max-height:88vh;overflow:auto;padding:28px;border-radius:20px;border:1px solid rgba(255,255,255,.13);background:#171821;box-shadow:0 24px 70px rgba(0,0,0,.55)}.dialog h2{margin:0 0 12px}.dialog p{color:rgba(255,255,255,.75);line-height:1.55}.dialog-close{position:absolute;top:12px;right:12px;width:36px;height:36px;padding:0;font-size:1.4rem}.promotion-options{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.promotion-options button{display:grid;gap:6px;border-radius:14px;font-size:2.5rem}.promotion-options span{font-size:.72rem}.data-dialog{width:min(94vw,760px)}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:16px 0}.stat-card{padding:14px;border-radius:13px;background:rgba(255,255,255,.06);text-align:center}.stat-card b{display:block;font-size:1.45rem}.stat-card span{font-size:.78rem;color:rgba(255,255,255,.63)}.leaderboard-table{width:100%;border-collapse:collapse}.leaderboard-table th,.leaderboard-table td{padding:10px 7px;border-bottom:1px solid rgba(255,255,255,.08);text-align:left;font-size:.9rem}.leaderboard-table th{color:rgba(255,255,255,.6)}.leader-player{display:flex;align-items:center;gap:8px}.mini-avatar{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#7136d3;overflow:hidden;font-size:.72rem}.mini-avatar img{width:100%;height:100%;object-fit:cover}.replay-list{display:grid;gap:10px}.replay-item{display:grid;grid-template-columns:1fr auto;gap:10px;padding:12px;border-radius:12px;background:rgba(255,255,255,.05)}.replay-item small{color:rgba(255,255,255,.6)}.replay-actions{display:flex;gap:7px;align-items:center}.message-error{color:#ff8b8b}.message-success{color:#78e89b}
@media(max-width:960px){.chess-page{grid-template-columns:1fr;padding-top:94px;gap:20px}.chess-info{max-width:720px;margin:0 auto}.board-column{width:min(94vw,720px);margin:0 auto}.board{width:100%}.chess-header nav{display:none}}@media(max-width:560px){.chess-header{height:62px;top:7px;width:calc(100% - 14px);padding:0 12px}.brand-link{height:62px;width:118px;min-width:118px}.brand-link img{height:38px}.chess-page{padding:82px 8px 18px}.chess-info{padding:17px}.board-column{width:98vw}.square{font-size:clamp(1.8rem,10vw,3rem)}.stats-grid{grid-template-columns:repeat(2,1fr)}.leaderboard-table th:nth-child(5),.leaderboard-table td:nth-child(5){display:none}.replay-bar{grid-template-columns:1fr auto}.replay-bar span{grid-column:1/-1;grid-row:2}}

/* v90 FIX1: chessboard cells are game squares, not pill-shaped UI buttons. */
.board {
  grid-template-columns: repeat(8, minmax(0, 1fr));
  grid-template-rows: repeat(8, minmax(0, 1fr));
  height: min(calc(100vh - 190px), 56vw, 720px);
  min-width: 0;
  min-height: 0;
  contain: layout paint;
}

.board > .square {
  -webkit-appearance: none;
  appearance: none;
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  text-transform: none;
  letter-spacing: normal;
  font-weight: 400;
  overflow: hidden;
}

.board > .square:hover,
.board > .square:focus,
.board > .square:disabled {
  border-radius: 0;
}

@media (max-width: 960px) {
  .board {
    width: min(94vw, 720px);
    height: min(94vw, 720px);
  }
}

@media (max-width: 560px) {
  .board {
    width: min(98vw, 720px);
    height: min(98vw, 720px);
  }
}


/* v191: JS-assisted dropdown open state, stable on mouse + touch. */
.site-header, .chess-header { overflow: visible !important; }
.nav-dropdown.is-open > .nav-dropdown-menu { display: block !important; opacity: 1 !important; visibility: visible !important; pointer-events: auto !important; }
.nav-dropdown.is-open > .nav-dropbtn { background: rgba(255,255,255,0.12) !important; color: #fff !important; }
.nav-tools-menu { min-width: 220px; }
@media (hover: none), (pointer: coarse), (max-width: 760px) {
  .nav-dropdown:hover > .nav-dropdown-menu { display: none; }
  .nav-dropdown.is-open > .nav-dropdown-menu { display: block !important; }
}