:root{
  --bg:#070b12; --bg2:#0d1521; --card:#111a28; --card2:#182434; --line:#243248;
  --txt:#eef3f9; --mut:#8b9ab1; --acc:#2fbf71; --acc2:#3ddc84; --gold:#f2c14e; --bad:#ff6b6b; --blue:#4aa8ff;
  --sqL:#e8d6b8; --sqD:#9c7b57;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{background:radial-gradient(1200px 620px at 50% -10%, #12202f 0%, var(--bg) 55%);color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;-webkit-tap-highlight-color:transparent;
  display:flex;justify-content:center}
button{font-family:inherit;border:none;cursor:pointer;background:none;color:inherit}
input{font-family:inherit;color:inherit;outline:none}
.mut{color:var(--mut)} .tiny{font-size:11px} .small{font-size:12.5px}
#app{width:100%;max-width:680px;min-height:100%;display:flex;flex-direction:column;padding:14px 14px 90px;gap:14px}

/* brand */
.brand{display:flex;align-items:center;gap:12px}
.brand .tile{width:50px;height:50px;border-radius:15px;background:linear-gradient(135deg,var(--acc),var(--acc2));display:flex;align-items:center;justify-content:center;font-size:30px;color:#04180d;font-weight:900;box-shadow:0 10px 26px rgba(47,191,113,.4)}
.brand h1{font-size:21px;font-weight:900;letter-spacing:-.5px;line-height:1}
.brand h1 span{color:var(--acc2)}
.brand .sub{font-size:11px;color:var(--mut);margin-top:3px}

/* auth */
.authbox{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px;margin-top:8px}
.segt{display:flex;gap:6px;background:var(--card2);border-radius:12px;padding:4px;margin-bottom:14px}
.segt button{flex:1;padding:10px;border-radius:9px;font-weight:800;font-size:13px;color:var(--mut)}
.segt button.on{background:linear-gradient(135deg,var(--acc),#1f9d59);color:#04180d}
.inp{width:100%;background:var(--card2);border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:14.5px;margin-bottom:10px}
.inp:focus{border-color:var(--acc)}
.btn{flex:1;padding:13px;border-radius:12px;font-size:14px;font-weight:800;background:var(--card2);border:1px solid var(--line);text-align:center}
.btn.pri{background:linear-gradient(135deg,var(--acc),#1f9d59);color:#04180d;border-color:transparent;font-weight:900}
.btn.ghost{background:none;border-color:var(--line)}
.btn:active{transform:scale(.97)}
.row2{display:flex;gap:8px;margin-top:10px}
.setrow{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap}
.setrow .btn{flex:1;min-width:80px}

/* board themes */
body.theme0 .sq.l{background:var(--sqL)} body.theme0 .sq.d{background:var(--sqD)}
body.theme1 .sq.l{background:#ececec} body.theme1 .sq.d{background:#7a9b76}
body.theme2 .sq.l{background:#dee3e6} body.theme2 .sq.d{background:#788a94}
.h2{font-size:16px;font-weight:900;margin:4px 0 8px;display:flex;align-items:center;gap:8px}

/* modes */
.modes{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.mode{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px 16px;display:flex;flex-direction:column;gap:6px;transition:transform .15s,border-color .15s}
.mode:active{transform:scale(.97)}
.mode b{font-size:30px}
.mode span{font-weight:800;font-size:14px}
.mode small{color:var(--mut);font-size:11px}
.mode.hot{background:linear-gradient(145deg,#123018,#0d2415);border-color:rgba(61,220,132,.4)}
.roomgrid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.roomcard{position:relative;padding:16px 14px;border-radius:20px;color:#fff;border:1px solid rgba(255,255,255,.16);text-align:left;display:flex;flex-direction:column;gap:6px;box-shadow:0 22px 44px rgba(0,0,0,.34), inset 0 0 0 1px rgba(255,255,255,.05);overflow:hidden;min-height:116px;background-size:cover,cover;background-position:center,center}
.roomcard b{font-size:14px;line-height:1.15;position:relative;z-index:2;text-shadow:0 1px 2px rgba(0,0,0,.4)}
.roomcard span{font-size:11.5px;font-weight:800;opacity:.96;position:relative;z-index:2}
.roomcard small{font-size:10.5px;font-weight:900;opacity:.97;position:relative;z-index:2;letter-spacing:.2px}
.roomcard.locked{filter:saturate(.45) brightness(.62)}
.roomcard.open{cursor:pointer}
.roomcard.on{box-shadow:0 0 0 2px rgba(255,255,255,.45),0 18px 40px rgba(0,0,0,.36),0 0 24px rgba(242,193,78,.28)}
.roomcard::before{content:'';position:absolute;inset:-20% auto auto -10%;width:78%;height:88%;background:radial-gradient(circle,rgba(255,255,255,.26),transparent 65%);pointer-events:none}
.roomcard::after{content:'';position:absolute;inset:0;border-radius:inherit;background:linear-gradient(180deg,rgba(255,255,255,.18),rgba(0,0,0,.24));pointer-events:none}
.roomcard.hall{min-height:96px}
.roomcard.locked small::before{content:'🔒 ';}
.roomcard.open small::before{content:'✨ ';}
.roombanner{box-shadow:0 18px 40px rgba(0,0,0,.3), inset 0 0 0 1px rgba(255,255,255,.06);overflow:hidden;position:relative}
.roombanner::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(0,0,0,.15));pointer-events:none}
.game-room-hero{position:relative;padding:12px 14px 14px;border-radius:16px;color:#fff;overflow:hidden;box-shadow:0 16px 30px rgba(0,0,0,.28),inset 0 0 0 1px rgba(255,255,255,.08);display:flex;flex-direction:column;gap:4px;min-height:82px}.game-room-hero::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(0,0,0,.18));pointer-events:none}.game-room-hero>*{position:relative;z-index:1}.game-room-kicker{font-size:10px;font-weight:900;letter-spacing:1.6px;opacity:.9}.game-room-hero b{font-size:16px;line-height:1.15;text-shadow:0 2px 3px rgba(0,0,0,.38)}.game-room-hero small{font-size:11px;font-weight:800;opacity:.94}

/* tabs */
#tabbar{position:fixed;inset:auto 0 0 0;z-index:30;display:flex;background:rgba(10,15,24,.94);backdrop-filter:blur(14px);border-top:1px solid var(--line);padding:8px 6px calc(10px + env(safe-area-inset-bottom))}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:17px;color:var(--mut);padding:4px 0;position:relative}
.tab span{font-size:9.5px;font-weight:800}
.tab.on{color:var(--acc2)}
.bdg{position:absolute;top:1px;right:24%;min-width:16px;height:16px;padding:0 4px;border-radius:9px;background:var(--bad);color:#fff;font-size:9.5px;font-weight:900;display:none;align-items:center;justify-content:center;line-height:16px;text-align:center;font-style:normal;box-shadow:0 2px 6px rgba(255,107,107,.5)}

/* screens */
.scr{display:none;flex-direction:column;gap:10px}
.scr.on{display:flex}

/* board */
#scr-game{padding-bottom:132px;gap:8px}
.pbar{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:13px;padding:9px 12px}
.pbar .nm{font-weight:800;font-size:13px}
.pbar .cap{margin-left:auto;font-size:15px;letter-spacing:1px}
.pbar .clk{font-variant-numeric:tabular-nums;font-weight:900;background:var(--card2);border:1px solid var(--line);border-radius:8px;padding:5px 9px;font-size:14px}
#boardWrap{position:relative;display:flex;align-items:stretch;border-radius:18px;overflow:hidden;box-shadow:0 22px 60px rgba(0,0,0,.55),0 0 0 1px var(--line);width:100%}
.evalbar{flex:none;width:12px;background:#1a130d;position:relative}
#evalFill{position:absolute;left:0;right:0;bottom:0;height:50%;transition:height .25s ease}
#board{position:relative;flex:1;min-width:0;width:100%;aspect-ratio:1/1}
#squares{position:absolute;inset:0;display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr)}
.sq{position:relative}
.sq.l{background:var(--sqL)} .sq.d{background:var(--sqD)}
.sq .coord{position:absolute;font-size:9px;font-weight:800;opacity:.8;pointer-events:none}
.sq.d .coord{color:var(--sqL)} .sq.l .coord{color:var(--sqD)}
.sq .fr{right:3px;top:2px} .sq .rk{bottom:2px;left:3px}
.sq.hl-last{box-shadow:inset 0 0 0 999px rgba(242,193,78,.32)}
.sq.hl-sel{box-shadow:inset 0 0 0 999px rgba(61,220,132,.38)}
.sq.hl-check{box-shadow:inset 0 0 0 999px rgba(255,90,90,.5);animation:ck 1s infinite}
.sq.hl-pre{box-shadow:inset 0 0 0 999px rgba(74,168,255,.18)}
.sq.hl-drop{box-shadow:inset 0 0 0 999px rgba(61,220,132,.22)}
.sq.hl-drop-cap{box-shadow:inset 0 0 0 999px rgba(255,107,107,.22)}
@keyframes ck{50%{box-shadow:inset 0 0 0 999px rgba(255,90,90,.75)}}
#pieces{position:absolute;inset:0;pointer-events:none}
.pc{position:absolute;left:0;top:0;width:12.5%;height:12.5%;display:flex;align-items:center;justify-content:center;font-size:min(9.4vw,50px);line-height:1;transition:transform .18s cubic-bezier(.2,.8,.3,1),filter .14s ease;pointer-events:auto;user-select:none;touch-action:none;cursor:grab;z-index:2;will-change:transform}
.pc:active{cursor:grabbing}
.pc.dragging{filter:drop-shadow(0 10px 18px rgba(0,0,0,.38));}
.pc-w .g{color:#fbfbf5;text-shadow:0 2px 3px rgba(0,0,0,.45)}
.pc-b .g{color:#211d18;text-shadow:0 1px 2px rgba(255,255,255,.3)}
.pc.fade{opacity:0;transition:opacity .18s}
#dots{position:absolute;inset:0;pointer-events:none;z-index:3}
.dot{position:absolute;left:0;top:0;width:12.5%;height:12.5%;display:flex;align-items:center;justify-content:center;pointer-events:auto;cursor:pointer}
.dot i{width:30%;height:30%;border-radius:50%;background:rgba(15,22,32,.42)}
.dot.cap i{width:100%;height:100%;background:none;box-shadow:inset 0 0 0 4px rgba(15,22,32,.45)}
#promo{position:absolute;inset:0;background:rgba(6,9,15,.8);display:none;align-items:center;justify-content:center;z-index:9}
#promo.on{display:flex}
#promo .box{display:flex;gap:12px;background:var(--card);border:1px solid var(--line);padding:16px 20px;border-radius:16px}
#promo .box button{font-size:38px;padding:8px;border-radius:10px;background:var(--card2);border:1px solid var(--line)}
#status{text-align:center;font-size:13px;font-weight:800;color:var(--acc2);min-height:18px}
#moves{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:10px 12px;height:86px;overflow-y:auto;font-size:12.5px;display:grid;grid-template-columns:auto 1fr 1fr;gap:2px 12px;align-content:start}
#moves .n{color:var(--mut);text-align:right} #moves .san{font-weight:700}
.gacts{display:flex;gap:8px}
.gacts .btn{font-size:12px;padding:11px 6px}

/* lobby */
.chal{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-bottom:8px}
.chal b{font-size:13.5px} .chal .elo{color:var(--acc2);font-weight:900;font-size:12px} .chal .btn{margin-left:auto;flex:none;padding:8px 12px;font-size:12px}
.onrow{padding:8px 12px;background:var(--card);border:1px solid var(--line);border-radius:10px;margin-bottom:6px;font-size:13px;font-weight:700}
#lobbyMsgs,#chatMsgs{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:12px;min-height:120px;max-height:220px;overflow-y:auto;display:flex;flex-direction:column;gap:7px}
.chatrow{display:flex;gap:8px;margin-top:8px}
.chatrow .inp{flex:1;margin-bottom:0}

/* friends */
.frow{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-bottom:8px}
.frow b{font-size:13.5px} .frow .acts{margin-left:auto;display:flex;gap:6px} .frow .btn{padding:7px 10px;font-size:11px;flex:none}
.av{width:30px;height:30px;border-radius:9px;background:var(--card2);display:inline-flex;align-items:center;justify-content:center;font-weight:900;color:var(--acc2);flex:none}

/* stories */
#storyRow{display:flex;gap:10px;overflow-x:auto;padding:4px 0}
.story{flex:none;width:74px;text-align:center;cursor:pointer}
.story img{width:74px;height:74px;border-radius:50%;object-fit:cover;border:3px solid var(--acc);padding:2px;background:var(--card)}
.story span{font-size:10.5px;color:var(--mut);display:block;margin-top:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.vw{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:9px 12px;margin-bottom:6px;font-size:13px}
.storyImg{width:100%;border-radius:14px;max-height:340px;object-fit:cover}
.storyCap{color:var(--mut);font-size:13px;margin-top:8px;text-align:center}

/* leaderboard */
.lrow{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin-bottom:7px}
.lrow .rk{font-weight:900;color:var(--gold);width:26px} .lrow .nm{font-weight:700;flex:1} .lrow .el{color:var(--acc2);font-weight:900}

/* profile */
.pcard{display:flex;align-items:center;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px}
.pav{width:62px;height:62px;border-radius:18px;background:linear-gradient(135deg,var(--acc),var(--acc2));display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:900;color:#04180d}
.pelo{margin-left:auto;font-size:26px;font-weight:900;color:var(--acc2)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:12px}
.stats div{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:12px 6px;text-align:center}
.stats b{display:block;font-size:19px} .stats span{font-size:10.5px;color:var(--mut)}
.form{display:flex;flex-direction:column;gap:4px;margin-top:6px}
.form label{font-size:11.5px;color:var(--mut);font-weight:700;margin-top:4px}

/* chat panel */
#chatPanel{position:fixed;inset:auto 0 0 0;z-index:40;background:var(--card);border-top:1px solid var(--line);border-radius:20px 20px 0 0;transform:translateY(105%);transition:transform .22s ease;max-height:72%;display:flex;flex-direction:column;padding:14px 16px 16px;box-shadow:0 -12px 40px rgba(0,0,0,.35)}
#chatPanel.on{transform:translateY(0)}
#chatPanel #chatMsgs{min-height:140px}
#chatPanel .chatrow{margin-bottom:0}
#chatHead{position:sticky;top:0;z-index:2;background:linear-gradient(180deg,var(--card),rgba(17,26,40,.96));backdrop-filter:blur(10px)}
#chatTitle{font-size:14px}
#chatHint{font-size:11px;color:var(--mut)}
.cm{max-width:82%;padding:8px 12px;border-radius:14px;font-size:13px;line-height:1.4;background:var(--card2);border:1px solid var(--line);align-self:flex-start}
.cm.me{background:linear-gradient(135deg,var(--acc),#1f9d59);color:#04180d;align-self:flex-end;font-weight:600}
.cm .who{font-size:10px;font-weight:800;color:var(--mut);display:block;margin-bottom:2px}


.setup-hero{margin-bottom:10px;position:relative}
.setup-hero::after{content:'';position:absolute;left:50%;top:-18px;transform:translateX(-50%);width:150px;height:64px;background:radial-gradient(circle,rgba(242,193,78,.18),transparent 70%);pointer-events:none}
.setup-badge{display:inline-flex;align-items:center;justify-content:center;padding:6px 12px;border-radius:999px;background:linear-gradient(135deg,var(--gold),#d79d17);color:#221704;font-size:10px;font-weight:900;letter-spacing:.9px;margin-bottom:10px;box-shadow:0 8px 22px rgba(242,193,78,.22)}
.setup-note{color:var(--mut);font-size:12px;line-height:1.45;margin-top:6px}
.setup-summary{display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--card2);border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin-top:10px;text-align:left}
.setup-summary span{color:var(--mut);font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.7px}
.setup-summary b{font-size:14px;font-weight:900}
.preset-groups{display:flex;flex-direction:column;gap:10px;margin-top:12px;text-align:left}
.preset-group{background:rgba(255,255,255,.02);border:1px solid var(--line);border-radius:16px;padding:12px}
.preset-title{font-size:12px;font-weight:900;color:var(--acc2);margin-bottom:8px;letter-spacing:.4px}
.preset-row{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.preset-row.compact{grid-template-columns:repeat(3,1fr)}
.preset-chip{padding:12px 10px;border-radius:12px;background:var(--card2);border:1px solid var(--line);text-align:left;display:flex;flex-direction:column;gap:4px}
.preset-chip.compact{padding:10px 9px}
.preset-chip b{font-size:13px;line-height:1.1}
.preset-chip span{font-size:10.5px;color:var(--mut);font-weight:700}
.preset-chip.on{background:linear-gradient(135deg,var(--acc),#1f9d59);color:#04180d;border-color:transparent;box-shadow:0 8px 18px rgba(47,191,113,.28)}
.preset-chip.on span{color:rgba(4,24,13,.7)}
.level-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}
.level-card{padding:12px 6px;border-radius:12px;background:var(--card2);border:1px solid var(--line);display:flex;flex-direction:column;gap:3px;align-items:center;justify-content:center}
.level-card b{font-size:18px;font-weight:900}
.level-card span{font-size:10px;color:var(--mut);font-weight:800}
.level-card.on{background:linear-gradient(135deg,#4aa8ff,#2d7ce8);border-color:transparent;color:#fff;box-shadow:0 8px 18px rgba(74,168,255,.28)}
.level-card.on span{color:rgba(255,255,255,.82)}
.setup-actions{margin-top:14px}
.stickyact{position:sticky;bottom:-2px;background:linear-gradient(180deg,rgba(17,26,40,0),rgba(17,26,40,.98) 26%,rgba(17,26,40,.98));padding-top:12px;padding-bottom:2px;z-index:3}
.roomhero{color:#fff;border:0;position:relative;overflow:hidden}
.roomhero span,.roomhero b,.roomhero em{position:relative;z-index:2}
.roomhero em{font-style:normal;font-size:11px;color:rgba(255,255,255,.88);font-weight:800}

/* sheet + result */
.overlay{position:fixed;inset:0;z-index:60;background:rgba(6,9,15,.86);backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;padding:20px}
.overlay.on{display:flex}
.sheet{background:linear-gradient(180deg,rgba(26,36,52,.98),rgba(17,26,40,.98));border:1px solid rgba(255,255,255,.10);border-radius:24px;padding:18px 18px 16px;width:100%;max-width:460px;text-align:center;max-height:86vh;overflow:auto;box-shadow:0 30px 70px rgba(0,0,0,.48), inset 0 1px 0 rgba(255,255,255,.04)}
.sheet h2{font-size:20px;font-weight:950;margin-bottom:6px;letter-spacing:-.2px}
.lvls{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}
.lvls button{padding:11px 4px;border-radius:10px;background:var(--card2);border:1px solid var(--line);font-weight:800}
.lvls button.on{background:linear-gradient(135deg,var(--acc),#1f9d59);color:#04180d;border-color:transparent}
.search{display:flex;align-items:center;justify-content:center;gap:12px;color:var(--acc2);font-weight:800;margin:16px 0}
.spin{width:28px;height:28px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--acc2);animation:rot 1s linear infinite}
@keyframes rot{to{transform:rotate(360deg)}}
#result .sheet h2{font-size:24px} #resultSub{font-size:22px;font-weight:900;letter-spacing:2px;color:var(--gold)}

/* video */
#video{position:fixed;inset:0;z-index:80;background:#000;display:none;flex-direction:column}
#video.on{display:flex}
#video video{flex:1;width:100%;object-fit:cover;background:#111}
#remoteV{position:absolute;inset:0}
#localV{position:absolute;bottom:14px;right:14px;width:110px;height:150px;border-radius:14px;object-fit:cover;border:2px solid var(--acc);z-index:2}
#video .hang{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);z-index:3;width:64px;height:64px;border-radius:50%;background:var(--bad);color:#fff;font-size:26px}

/* toast */
#toast{position:fixed;top:14px;left:50%;transform:translateX(-50%);z-index:95;background:#1d2838;border:1px solid var(--line);border-inline-start:3px solid var(--acc);padding:11px 16px;border-radius:12px;font-size:13px;font-weight:700;display:none;max-width:90%}
#arrows{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:1}
.avatars{display:grid;grid-template-columns:repeat(5,1fr);gap:12px 8px}
.avCard{display:flex;flex-direction:column;align-items:center;gap:5px;cursor:pointer}
.avImg{width:54px;height:54px;border-radius:50%;background:var(--card2);border:2px solid var(--acc);display:flex;align-items:center;justify-content:center;font-weight:900;font-size:20px;color:var(--acc2);background-size:cover;background-position:center;position:relative}
.avImg::after{content:'';position:absolute;right:0;bottom:0;width:12px;height:12px;border-radius:50%;background:var(--acc2);border:2px solid var(--bg)}
.avCard span{font-size:10px;color:var(--mut);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}
#toast.on{display:block} #toast.err{border-inline-start-color:var(--bad)}

@media(min-width:560px){ .pc{font-size:42px} }

@media(max-width:420px){.preset-row,.level-grid{grid-template-columns:1fr 1fr}.setup-summary{padding:10px 12px}}

@media(max-width:420px){.roomgrid{grid-template-columns:1fr}}

body.in-game #app{max-width:760px;padding:8px 8px 110px;gap:8px}
body.in-game #scr-game{margin:0 -8px 0 -8px}
body.in-game #scr-game > :not(#boardWrap){margin-left:8px;margin-right:8px}
body.in-game #boardWrap{border-radius:20px}
body.in-game .gacts .btn{padding:12px 8px;font-size:13px}
@media(max-width:520px){body.in-game #scr-game > :not(#boardWrap){margin-left:6px;margin-right:6px}body.in-game #app{padding:6px 6px 110px}body.in-game #scr-game{margin:0 -6px 0 -6px}.preset-row.compact{grid-template-columns:repeat(3,1fr)}.roomcard{min-height:104px}}