/* Arcadium: jade + saffron */
:root{
  --bg:#f4f0e2;--surface:#fffdf5;--surface2:#ebe5cf;--line:#d8cfb2;
  --text:#10291f;--muted:#566b60;--accent:#e2a514;--accent-ink:#1a1405;--accent-text:#8a5d00;
  --accent2:#1d8c6c;--c3:#e2674a;--c4:#7c6bb0;--danger:#b3261e;--link:#1d6f57;
  --display:"Bungee",Impact,"Arial Black",sans-serif;
  --body:"Lexend",system-ui,-apple-system,"Segoe UI",sans-serif;
  --r:12px;box-sizing:border-box;color-scheme:light;
  padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0c1d1a;--surface:#122a25;--surface2:#1a3a33;--line:#2a5048;
  --text:#edf2e6;--muted:#9db5aa;--accent:#f5b82e;--accent-ink:#1a1405;--accent-text:#f5b82e;
  --accent2:#3fd0a4;--c3:#ff8a66;--c4:#b9a6f0;--danger:#ff8a7a;--link:#6fe0bd;color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0c1d1a;--surface:#122a25;--surface2:#1a3a33;--line:#2a5048;
  --text:#edf2e6;--muted:#9db5aa;--accent:#f5b82e;--accent-ink:#1a1405;--accent-text:#f5b82e;
  --accent2:#3fd0a4;--c3:#ff8a66;--c4:#b9a6f0;--danger:#ff8a7a;--link:#6fe0bd;color-scheme:dark}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:calc(env(safe-area-inset-top,0px) + 70px)}
body{margin:0;background:var(--bg);color:var(--text);font:400 1rem/1.6 var(--body);-webkit-font-smoothing:antialiased;min-height:100%}
a{color:var(--link)}
img,svg{max-width:100%}
h1,h2,h3{line-height:1.15;margin:0 0 .5em}
h1,h2{font-family:var(--display);font-weight:400;letter-spacing:.01em}
h1{font-size:clamp(2rem,5vw,3rem)}
h2{font-size:clamp(1.35rem,3vw,1.8rem)}
h3{font-size:1.1rem;font-weight:600}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--accent2);outline-offset:2px}
.wrap{max-width:1160px;margin:0 auto;padding-inline:clamp(1rem,4vw,2rem)}
.sec{padding-block:clamp(2rem,5vw,3.5rem)}
.muted{color:var(--muted)}
.lead{font-size:1.12rem;color:var(--muted);max-width:60ch;margin:0}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border:2px solid var(--accent);background:var(--accent);color:var(--accent-ink);padding:.6rem 1.15rem;border-radius:999px;font:600 .95rem/1.2 var(--body);text-decoration:none;cursor:pointer;white-space:nowrap}
.btn:hover{filter:brightness(1.07)}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--accent);filter:none}
.btn.danger{background:transparent;color:var(--danger);border-color:var(--danger)}
.btn.lg{padding:.85rem 1.5rem;font-size:1.05rem}
.btn.sm{padding:.35rem .8rem;font-size:.85rem}
.btn:disabled{opacity:.6;cursor:wait}

/* nav */
.nav{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-in{position:relative;display:flex;align-items:center;gap:1.25rem;max-width:1160px;margin:0 auto;padding:.65rem clamp(1rem,4vw,2rem)}
.brand{display:flex;align-items:center;gap:.55rem;font-family:var(--display);font-size:1.3rem;color:var(--text);text-decoration:none}
.mark{width:24px;height:24px;border-radius:6px;background:conic-gradient(var(--accent) 0 25%,var(--accent2) 0 50%,var(--accent) 0 75%,var(--accent2) 0);transform:rotate(45deg) scale(.85)}
.links{display:flex;gap:.2rem;margin-right:auto}
.links a{color:var(--muted);text-decoration:none;padding:.45rem .85rem;border-radius:999px;font-weight:500}
.links a:hover{color:var(--text);background:var(--surface)}
.links a[aria-current="page"]{color:var(--text);background:var(--surface2)}
.nav-user{display:flex;gap:.5rem;align-items:center}
.menu-btn{display:none}
.umenu{position:relative}
.umenu summary{list-style:none;display:flex;align-items:center;gap:.5rem;cursor:pointer;padding:.2rem .8rem .2rem .2rem;border:1px solid var(--line);border-radius:999px;font-weight:600}
.umenu summary::-webkit-details-marker{display:none}
.umenu .menu{position:absolute;right:0;top:calc(100% + .45rem);min-width:190px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:.35rem;display:flex;flex-direction:column;box-shadow:0 24px 50px -24px rgba(0,0,0,.55)}
.menu a,.menu button{text-align:left;padding:.55rem .75rem;border-radius:8px;color:var(--text);text-decoration:none;background:none;border:0;cursor:pointer}
.menu a:hover,.menu button:hover{background:var(--surface2)}
.av{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--surface2);font-size:1.05rem;line-height:1;flex:none}
.av.md{width:44px;height:44px;font-size:1.4rem}
.av.lg{width:96px;height:96px;font-size:3rem;border:3px solid var(--accent)}
@media (max-width:820px){
  .menu-btn{display:inline-flex}
  .brand{margin-right:auto}
  .links{position:absolute;left:0;right:0;top:100%;display:none;flex-direction:column;background:var(--bg);border-bottom:1px solid var(--line);padding:.5rem clamp(1rem,4vw,2rem) 1rem;margin:0}
  .links.open{display:flex}
  .uname,.nav-user .signup{display:none}
}

/* footer */
.foot{border-top:1px solid var(--line);margin-top:3rem;padding:2.75rem 0 2rem;color:var(--muted);font-size:.95rem}
.foot-in{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem}
.foot h4{color:var(--text);margin:0 0 .6rem;font-size:.95rem}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:.35rem}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:var(--text)}
.foot p{margin:.5rem 0 0;max-width:36ch}
.foot-base{margin-top:2rem;padding-top:1.25rem;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:.5rem}
@media (max-width:640px){.foot-in{grid-template-columns:1fr 1fr}.foot-in>:first-child{grid-column:1/-1}}

/* hero */
.hero{border-bottom:1px solid var(--line)}
.hero-in{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,4rem);align-items:center;max-width:1160px;margin:0 auto;padding:clamp(2.5rem,7vw,5.5rem) clamp(1rem,4vw,2rem)}
.hero h1{font-size:clamp(2.3rem,6.2vw,4.3rem);line-height:1.02;margin-bottom:1.25rem}
.cta{display:flex;flex-wrap:wrap;gap:.75rem;margin:1.75rem 0 2.25rem}
.stats{display:flex;flex-wrap:wrap;gap:2.5rem;margin:0}
.stats div{display:flex;flex-direction:column-reverse}
.stats dt{color:var(--muted);font-size:.9rem}
.stats dd{margin:0;font-family:var(--display);font-size:1.9rem;line-height:1.1;color:var(--accent-text)}
.mosaic{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;padding-bottom:18px}
.mosaic a{aspect-ratio:1;display:grid;place-items:center;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20%;transition:transform .15s,border-color .15s}
.mosaic a:nth-child(even){translate:0 18px}
.mosaic a:hover{transform:translateY(-4px);border-color:var(--accent)}
@media (max-width:860px){.hero-in{grid-template-columns:1fr}.mosaic{max-width:460px}}

/* sections */
.sec-head{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;margin-bottom:1.25rem}
.sec-head h2{margin:0}
.sec-head a{font-weight:500}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,3.5rem)}
@media (max-width:760px){.split{grid-template-columns:1fr}}
.rows{list-style:none;margin:0;padding:0}
.rows li{display:flex;align-items:center;gap:.8rem;padding:.75rem 0;border-bottom:1px solid var(--line)}
.rows .main{flex:1;min-width:0}
.rows .main a{color:var(--text);font-weight:600;text-decoration:none}
.rows .main a:hover{text-decoration:underline}
.rows small{display:block;color:var(--muted);font-size:.85rem}
.rows b{color:var(--accent-text);font-variant-numeric:tabular-nums;white-space:nowrap}
.rows svg{width:36px;height:36px;flex:none}
.empty{color:var(--muted);padding:1rem 0}
.steps{list-style:none;padding:0;margin:1.5rem 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:1.75rem;counter-reset:s}
.steps li{counter-increment:s;border-top:3px solid var(--accent);padding-top:1rem}
.steps li::before{content:counter(s);display:block;font-family:var(--display);font-size:2.2rem;line-height:1;color:var(--accent-text);margin-bottom:.6rem}
.steps p{margin:0;color:var(--muted)}
@media (max-width:760px){.steps{grid-template-columns:1fr}}
.band{background:var(--surface);border:1px solid var(--line);border-radius:22px;text-align:center;padding:clamp(2rem,6vw,3.5rem)}
.band p{color:var(--muted);margin:0 auto 1.5rem;max-width:50ch}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(235px,1fr));gap:1rem}
.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden;color:var(--text);text-decoration:none;transition:border-color .15s}
.card:hover{border-color:var(--accent)}
.card-art{display:grid;place-items:center;aspect-ratio:16/9;background:color-mix(in srgb,var(--accent) 14%,var(--surface2))}
.card[data-cat="Puzzle"] .card-art{background:color-mix(in srgb,var(--accent2) 18%,var(--surface2))}
.card[data-cat="Reflex"] .card-art{background:color-mix(in srgb,var(--c3) 18%,var(--surface2))}
.card[data-cat="Board"] .card-art{background:color-mix(in srgb,var(--c4) 20%,var(--surface2))}
.card-art svg{width:76px;height:76px}
.card-body{padding:1rem 1.1rem 1.1rem;display:flex;flex-direction:column;gap:.35rem;flex:1}
.card-body h3{margin:0;font-family:var(--display);font-weight:400;font-size:1.25rem}
.card-body p{margin:0;color:var(--muted);font-size:.93rem;flex:1}
.card-meta{display:flex;justify-content:space-between;align-items:center;gap:.5rem;font-size:.85rem;color:var(--muted);margin-top:.6rem}
.tag{background:var(--surface2);padding:.12rem .6rem;border-radius:999px;color:var(--text)}
.gicon{color:var(--accent);fill:var(--accent)}
.gicon .a2{fill:var(--accent2)} .gicon .a3{fill:var(--c3)} .gicon .a4{fill:var(--c4)}
.gicon .s{fill:none;stroke:currentColor} .gicon .s2{fill:none;stroke:var(--accent2)}

/* filters & inputs */
.filters{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center;margin:1.75rem 0 1.5rem}
.filters input[type=search]{flex:1 1 220px}
.chips{display:flex;flex-wrap:wrap;gap:.4rem}
.chip{border:1px solid var(--line);background:none;padding:.42rem .95rem;border-radius:999px;cursor:pointer;font:500 .9rem var(--body);color:var(--muted)}
.chip:hover{color:var(--text);border-color:var(--muted)}
.chip[aria-pressed="true"]{background:var(--text);color:var(--bg);border-color:var(--text)}
input,select,textarea{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:.62rem .8rem;font-size:1rem}
input:focus,select:focus,textarea:focus{border-color:var(--accent);outline:none}
textarea{resize:vertical;min-height:90px}

/* play */
.crumbs{padding-top:1.25rem;color:var(--muted);font-size:.9rem}
.crumbs a{color:var(--muted)}
.play-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:2rem;margin-top:.75rem;align-items:start}
@media (max-width:900px){.play-grid{grid-template-columns:1fr}}
.play-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:1rem;margin-bottom:1rem;max-width:540px}
.play-head h1{margin:0}
.play-head p{margin:.2rem 0 0}
.scores{display:flex;gap:1.5rem;color:var(--muted)}
.scores b{font-family:var(--display);font-weight:400;font-size:1.6rem;color:var(--accent-text);margin-left:.4rem;font-variant-numeric:tabular-nums}
.stage{position:relative;max-width:540px;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:12px;touch-action:none;user-select:none;-webkit-user-select:none}
.board canvas{display:block;width:100%;height:auto;border-radius:10px}
.overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;text-align:center;padding:1.5rem;background:color-mix(in srgb,var(--surface) 90%,transparent);border-radius:18px}
.overlay[hidden]{display:none}
.overlay p{margin:0;font-size:1.15rem;max-width:30ch}
.help{color:var(--muted);max-width:540px;margin:1rem 0 0}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:1.25rem;margin-bottom:1rem}
.panel h2{font-size:1.2rem}
.panel p{margin:0}
.lb{list-style:none;margin:0 0 .75rem;padding:0;counter-reset:r}
.lb li{display:flex;align-items:center;gap:.6rem;padding:.5rem 0;border-bottom:1px solid var(--line);counter-increment:r}
.lb li::before{content:counter(r);min-width:1.8ch;color:var(--muted);font-variant-numeric:tabular-nums}
.lb .nm{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text);text-decoration:none}
.lb li.you .nm{color:var(--accent-text);font-weight:600}
.lb b{font-variant-numeric:tabular-nums}

/* games */
.g2048{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;aspect-ratio:1}
.g2048 div{display:flex;align-items:center;justify-content:center;border-radius:8px;background:var(--surface2);font-weight:700;font-size:clamp(1.1rem,5vw,1.9rem);font-variant-numeric:tabular-nums}
.ttt{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;aspect-ratio:1}
.ttt button{background:var(--surface2);border:0;border-radius:10px;font-family:var(--display);font-size:clamp(2.4rem,11vw,4.2rem);line-height:1;cursor:pointer;color:var(--accent2)}
.ttt button.x{color:var(--accent-text)}
.status{margin:.75rem 0 0;text-align:center;min-height:1.6em;color:var(--muted)}
.mem{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;aspect-ratio:1}
.mem button{border:0;border-radius:10px;background:var(--accent2);color:var(--bg);font-size:clamp(1.6rem,8vw,2.6rem);cursor:pointer}
.mem button.up{background:var(--surface2);color:var(--text)}
.mem button.done{background:var(--surface2);color:var(--accent-text);cursor:default}
.mines{display:grid;grid-template-columns:repeat(9,1fr);gap:3px;aspect-ratio:1}
.mines button{border:0;border-radius:5px;background:var(--surface2);font-weight:700;font-size:clamp(.9rem,4vw,1.25rem);cursor:pointer;padding:0}
.mines button.open{background:var(--bg);cursor:default}
.mines button.flag{color:var(--accent-text)}
.mines button.boom{background:var(--c3);color:var(--bg)}
.mines [data-n="1"]{color:var(--accent2)} .mines [data-n="2"]{color:var(--accent-text)} .mines [data-n="3"]{color:var(--c3)} .mines [data-n="4"],.mines [data-n="5"]{color:var(--c4)}
.bar{display:flex;justify-content:space-between;align-items:center;margin-top:.75rem;color:var(--muted)}
.echo{display:grid;grid-template-columns:1fr 1fr;gap:12px;aspect-ratio:1}
.echo button{border:0;background:var(--pad);opacity:.35;cursor:pointer;transition:opacity .1s,transform .1s}
.echo button:nth-child(1){border-radius:100% 12px 12px 12px}
.echo button:nth-child(2){border-radius:12px 100% 12px 12px}
.echo button:nth-child(3){border-radius:12px 12px 12px 100%}
.echo button:nth-child(4){border-radius:12px 12px 100% 12px}
.echo button.lit{opacity:1;transform:scale(.97)}
.react{display:flex;align-items:center;justify-content:center;width:100%;aspect-ratio:4/3;border:0;border-radius:12px;font:600 clamp(1.1rem,4vw,1.5rem)/1.3 var(--body);padding:1.5rem;cursor:pointer;background:var(--surface2);color:var(--text);text-align:center}
.react.wait{background:var(--c3);color:#1a0d08}
.react.go{background:var(--accent2);color:#04140f}

/* tables */
.table-wrap{overflow-x:auto}
.lbtable{width:100%;border-collapse:collapse;min-width:360px}
.lbtable th,.lbtable td{text-align:left;padding:.75rem .5rem;border-bottom:1px solid var(--line)}
.lbtable th{color:var(--muted);font-weight:500;font-size:.9rem}
.lbtable td.r{width:3.5rem;font-family:var(--display);color:var(--muted)}
.lbtable tbody tr:nth-child(-n+3) td.r{color:var(--accent-text)}
.lbtable .num{text-align:right;font-variant-numeric:tabular-nums;font-weight:600}
.who{display:inline-flex;align-items:center;gap:.6rem;color:var(--text);text-decoration:none;font-weight:500}
.who:hover{text-decoration:underline}
.game-link{display:inline-flex;align-items:center;gap:.6rem;color:var(--text);text-decoration:none;font-weight:500}
.game-link svg{width:30px;height:30px}

/* profile */
.prof-head{display:flex;gap:1.5rem;align-items:center;flex-wrap:wrap;padding-bottom:2rem;border-bottom:1px solid var(--line)}
.prof-head h1{margin:0 0 .2rem}
.prof-head .bio{margin:.6rem 0 0;max-width:55ch}
.prof-head .actions{margin-left:auto}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:1rem;margin:2rem 0}
.tile{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:1rem 1.2rem}
.tile b{display:block;font-family:var(--display);font-weight:400;font-size:1.8rem;line-height:1.2;color:var(--accent-text)}
.tile span{color:var(--muted);font-size:.9rem}

/* forms */
.form{display:flex;flex-direction:column;gap:1rem;max-width:480px}
.form label{display:flex;flex-direction:column;gap:.35rem;font-weight:500;font-size:.95rem}
.form .check{flex-direction:row;align-items:flex-start;gap:.6rem;font-weight:400}
.form .check input{margin-top:.3rem}
.hint{font-weight:400;color:var(--muted);font-size:.85rem}
.err{color:var(--danger);min-height:1.3em;margin:0;font-size:.92rem}
.avatars{display:grid;grid-template-columns:repeat(8,1fr);gap:.4rem;max-width:480px}
.avatars button{aspect-ratio:1;font-size:1.35rem;border:2px solid var(--line);border-radius:12px;background:var(--surface);cursor:pointer;padding:0}
.avatars button[aria-pressed="true"]{border-color:var(--accent);background:var(--surface2)}
.auth-wrap{display:grid;place-items:center;padding:clamp(2rem,6vw,4rem) 1rem}
.auth-card{width:min(430px,100%);background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:clamp(1.5rem,5vw,2.25rem)}
.auth-card h1{font-size:1.8rem;text-align:center}
.auth-card .form{max-width:none}
.tabs{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:999px;padding:4px;margin-bottom:1.5rem}
.tabs button{border:0;background:none;padding:.5rem;border-radius:999px;cursor:pointer;font-weight:600;color:var(--muted)}
.tabs button[aria-selected="true"]{background:var(--accent);color:var(--accent-ink)}
.acct-sec{padding:2rem 0;border-bottom:1px solid var(--line)}
.acct-sec:last-child{border-bottom:0}
.acct-sec h2{margin-bottom:.4rem}
.acct-sec>p{margin:0 0 1.25rem}
.prose{max-width:70ch}
.prose h2{margin-top:2.25rem}
.faq{border-bottom:1px solid var(--line);padding:1rem 0;max-width:70ch}
.faq summary{cursor:pointer;font-weight:600}
.faq p{margin:.6rem 0 0;color:var(--muted)}
.toast{position:fixed;left:50%;bottom:calc(1.25rem + env(safe-area-inset-bottom,0px));translate:-50% 0;background:var(--text);color:var(--bg);padding:.7rem 1.15rem;border-radius:999px;z-index:60;font-weight:500;max-width:calc(100% - 2rem);text-align:center}
.notfound{text-align:center;padding-block:clamp(3rem,10vw,7rem)}
.notfound .lead{margin:0 auto 2rem}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
@media (max-width:540px){
  .cards{grid-template-columns:1fr 1fr;gap:.75rem}
  .card-body{padding:.8rem}
  .card-body p{display:none}
  .card-body h3{font-size:1.05rem}
  .card-meta{flex-wrap:wrap;margin-top:.3rem}
  .card-art svg{width:56px;height:56px}
}

/* ---------- sign in / sign up ---------- */
.auth{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);min-height:calc(100vh - 62px)}
.auth-side{position:relative;overflow:hidden;background:color-mix(in srgb,var(--accent2) 22%,var(--surface));border-right:1px solid var(--line);display:flex;align-items:center}
.auth-side-in{position:relative;z-index:1;width:100%;max-width:520px;margin-left:auto;padding:clamp(2rem,5vw,4rem)}
.auth-kicker{margin:0 0 .5rem;font-weight:600;color:var(--accent2)}
.auth-side h1{font-size:clamp(2rem,4.2vw,3.2rem);line-height:1.04;margin:0 0 2rem}
.perks{list-style:none;margin:0 0 2.5rem;padding:0;display:grid;gap:1.1rem}
.perks li{display:flex;gap:.9rem;align-items:flex-start}
.perk-ic{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--surface);border:1px solid var(--line);font-size:1.2rem;flex:none}
.perks b{display:block}
.perks span{color:var(--muted);font-size:.93rem}
.auth-mosaic{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;max-width:340px;opacity:.9}
.auth-mosaic div{aspect-ratio:1;display:grid;place-items:center;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20%}
.auth-mosaic div:nth-child(even){translate:0 10px}
.auth-main{display:flex;align-items:center;padding:clamp(2rem,5vw,4rem) clamp(1.25rem,5vw,4rem)}
.auth-box{width:100%;max-width:400px}
.seg{position:relative;display:grid;grid-template-columns:1fr 1fr;background:var(--surface2);border-radius:999px;padding:4px;margin-bottom:2.25rem}
.seg button{position:relative;z-index:1;border:0;background:none;padding:.6rem .5rem;border-radius:999px;font-weight:600;color:var(--muted);cursor:pointer;transition:color .2s}
.seg button[aria-selected="true"]{color:var(--accent-ink)}
.seg-pill{position:absolute;top:4px;bottom:4px;left:4px;width:calc(50% - 4px);border-radius:999px;background:var(--accent);transition:transform .25s ease}
.seg[data-on="up"] .seg-pill{transform:translateX(100%)}
.aform{display:flex;flex-direction:column;gap:1.1rem}
.aform h2{font-size:1.9rem;margin:0}
.aform .sub{margin:-.75rem 0 .4rem;color:var(--muted)}
.field{display:flex;flex-direction:column;gap:.4rem}
.field label{font-weight:600;font-size:.92rem}
.field input{width:100%;padding:.85rem 1rem;border-radius:12px;border:1.5px solid var(--line);background:var(--surface);font-size:1rem;transition:border-color .15s,box-shadow .15s}
.field input:focus{border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 22%,transparent);outline:none}
.field.bad input{border-color:var(--danger);box-shadow:0 0 0 4px color-mix(in srgb,var(--danger) 16%,transparent)}
.fhint{font-size:.83rem;color:var(--muted)}
.pw{position:relative}
.pw input{padding-right:4.5rem}
.pw-toggle{position:absolute;right:.4rem;top:50%;translate:0 -50%;border:0;background:none;color:var(--link);font-weight:600;font-size:.85rem;padding:.4rem .6rem;border-radius:8px;cursor:pointer}
.pw-toggle:hover{background:var(--surface2)}
.meter{display:grid;grid-template-columns:repeat(3,1fr);gap:4px}
.meter i{height:4px;border-radius:2px;background:var(--surface2);transition:background .2s}
.meter[data-s="1"] i:nth-child(1){background:var(--c3)}
.meter[data-s="2"] i:nth-child(-n+2){background:var(--accent)}
.meter[data-s="3"] i{background:var(--accent2)}
.btn.block{width:100%;margin-top:.25rem}
.aform .err{margin:-.25rem 0 0;min-height:1.3em}
.aform .err:empty{margin:0;min-height:0}
.fine{margin:0;font-size:.83rem;color:var(--muted);text-align:center}
.switch{margin:.5rem 0 0;padding-top:1.25rem;border-top:1px solid var(--line);text-align:center;color:var(--muted);font-size:.95rem}
.link{border:0;background:none;padding:0;color:var(--link);font-weight:600;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
body:has(.auth) .foot{margin-top:0}
@media (max-width:860px){
  .auth{grid-template-columns:1fr;min-height:0}
  .auth-side{border-right:0;border-bottom:1px solid var(--line)}
  .auth-side-in{margin:0 auto;padding:1.75rem 1.25rem}
  .auth-side h1{font-size:1.7rem;margin:0}
  .perks,.auth-mosaic{display:none}
  .auth-main{justify-content:center;padding-top:1.75rem}
}
.aform[hidden]{display:none}
body:has(.auth) .nav-user{display:none}

/* ---------- centered square game stage ---------- */
.play-main{--sq:min(100%,max(300px,calc(100vh - 250px)));min-width:0;display:flex;flex-direction:column;align-items:center}
@supports (height:100svh){.play-main{--sq:min(100%,max(300px,calc(100svh - 250px)))}}
.play-main .play-head{width:var(--sq);max-width:none}
.play-main .stage{width:var(--sq);max-width:none;margin:0}
.play-main .help{width:var(--sq);max-width:none;text-align:center}
.play-main .play-head h1{font-size:clamp(1.6rem,4vw,2.4rem)}
.play-main .status{margin:.6rem 0 0}

/* chess */
.chess{container-type:inline-size;display:grid;grid-template-columns:repeat(8,1fr);aspect-ratio:1;border-radius:8px;overflow:hidden;border:2px solid var(--line)}
.chess button{position:relative;border:0;padding:0;margin:0;aspect-ratio:1;font-size:10cqw;line-height:1;cursor:pointer;display:grid;place-items:center;font-family:"Segoe UI Symbol","Noto Sans Symbols 2","DejaVu Sans",serif}
.chess .lt{background:#efe4c4}
.chess .dk{background:#5f9b85}
.chess .wp{color:#fffaf0;text-shadow:0 0 1px #10201b,0 0 1px #10201b,0 1px 2px #10201b}
.chess .bp{color:#14231e;text-shadow:0 0 1px #fffaf0}
.chess .last{box-shadow:inset 0 0 0 100vmax rgba(245,184,46,.35)}
.chess .sel{box-shadow:inset 0 0 0 4px var(--accent),inset 0 0 0 100vmax rgba(245,184,46,.35)}
.chess .tg::after{content:"";width:28%;height:28%;border-radius:50%;background:rgba(16,32,27,.35)}
.chess .cap{box-shadow:inset 0 0 0 4px rgba(226,103,74,.85)}
/* connect four */
.c4{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;padding:8px;border-radius:14px;background:var(--accent2)}
.c4 button{aspect-ratio:1;border-radius:50%;border:0;padding:0;background:var(--bg);cursor:pointer;box-shadow:inset 0 3px 6px rgba(0,0,0,.25)}
.c4 button.x{background:var(--accent)}
.c4 button.o{background:var(--c3)}
/* moles */
.moles{container-type:inline-size;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;aspect-ratio:1;padding:6px}
.moles button{border:0;border-radius:50%;background:color-mix(in srgb,var(--accent2) 30%,var(--surface2));box-shadow:inset 0 8px 14px rgba(0,0,0,.3);font-size:15cqw;cursor:pointer;padding:0;touch-action:manipulation}
.moles button.up{background:var(--accent);box-shadow:none}
.moles button.hit{background:var(--c3);box-shadow:none}
/* slide */
.slide{container-type:inline-size;display:grid;grid-template-columns:repeat(4,1fr);gap:7px;aspect-ratio:1}
.slide button{border:0;border-radius:10px;background:var(--accent);color:var(--accent-ink);font:400 10cqw/1 var(--display);cursor:pointer;padding:0}
.slide button.ok{background:var(--accent2);color:#04140f}
.slide button.blank{background:transparent;cursor:default}