*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#0e1116; --panel:#161b23; --panel-2:#1c222c; --line:#2a3240; --ink:#e8edf5; --muted:#93a0b4; --accent:#ffb23f;
  --red:#c8202a; --red-2:#a5171f; --blue:#3a97b2; --blue-2:#2c7b93;
  --num:"Roboto Condensed","Arial Narrow","Helvetica Neue",ui-sans-serif,system-ui,sans-serif;
}
html,body{margin:0;padding:0;height:100%}
body{
  background:var(--bg); color:var(--ink);
  font:16px/1.5 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased; -webkit-tap-highlight-color:transparent;
}
[hidden]{display:none!important}
button{font:inherit;color:inherit}
a{color:var(--accent)}

/* ---------- buttons & controls ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 16px;border-radius:12px;border:1px solid var(--accent);background:var(--accent);color:#0e1116;font-weight:700;cursor:pointer}
.btn.big{width:100%;min-height:54px;font-size:18px}
.btn.ghost{background:var(--panel-2);color:var(--ink);border-color:var(--line);font-weight:600}
.btn.danger{color:#ff8a80}
.btn:focus-visible,.seg button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- setup ---------- */
#setup{min-height:100dvh;background-image:radial-gradient(900px 500px at 50% -10%,#1b2431 0%,transparent 70%)}
.wrap{max-width:560px;margin:0 auto;padding:calc(24px + env(safe-area-inset-top)) 16px calc(40px + env(safe-area-inset-bottom))}
.head{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.logo{width:52px;height:52px;flex:none;color:#fff;background:linear-gradient(90deg,var(--red) 50%,var(--blue) 50%);border-radius:14px;padding:8px}
h1{margin:0;font-size:28px;letter-spacing:-.02em;line-height:1.1}
.tag{margin:4px 0 0;color:var(--muted);font-size:14.5px}
.how{display:grid;gap:8px;margin:0 0 18px}
.how div{display:flex;gap:12px;align-items:baseline;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 14px}
.how b{flex:none;width:84px;color:var(--accent)}
.how span{color:var(--muted);font-size:14.5px}
#resume{margin-bottom:14px}
fieldset{border:1px solid var(--line);background:var(--panel);border-radius:14px;padding:6px 14px 14px;margin:0 0 14px;min-width:0}
legend{padding:0 6px;color:var(--muted);font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase}
.row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:10px;flex-wrap:wrap}
.row.col{flex-direction:column;align-items:stretch;gap:6px}
.lbl{font-weight:600}
.small{color:var(--muted);font-size:13px}
.seg{display:flex;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:3px;gap:3px}
.seg button{border:0;background:transparent;padding:7px 12px;border-radius:8px;cursor:pointer;color:var(--muted);font-weight:600;font-size:14.5px;min-height:36px}
.seg button.on{background:var(--panel-2);color:var(--ink);box-shadow:inset 0 0 0 1px var(--accent)}
.teams .team{display:grid;grid-template-columns:auto 1fr 1fr;gap:8px;align-items:center;margin-top:10px}
.teams.singles .team{grid-template-columns:auto 1fr}
.teams.singles .dbl{display:none}
.chip{font-weight:800;font-size:13px;padding:6px 10px;border-radius:8px;color:#fff;min-width:52px;text-align:center}
.chip{border:0;cursor:pointer;background-size:cover!important;text-shadow:0 1px 3px rgba(0,0,0,.6);box-shadow:inset 0 0 0 1px rgba(255,255,255,.25);max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.skinsBtn{width:100%;margin-top:10px}
input:not([type]),input[type=text]{width:100%;min-width:0;background:var(--bg);color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:10px 12px;font:inherit;text-transform:uppercase}
input::placeholder{text-transform:none;color:#5f6b7d}
input:focus{outline:none;border-color:var(--accent)}
.tog{display:flex;align-items:center;gap:12px;padding:9px 0;cursor:pointer}
.tog input{appearance:none;-webkit-appearance:none;width:44px;height:26px;flex:none;border-radius:99px;background:var(--line);position:relative;cursor:pointer;margin:0;transition:background .15s}
.tog input::after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;transition:transform .15s}
.tog input:checked{background:var(--accent)}
.tog input:checked::after{transform:translateX(18px)}
.tog input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
input[type=range]{width:100%;accent-color:var(--accent)}
output{color:var(--accent);font-weight:700;margin-left:6px}
#testBtn{width:100%;margin-top:8px}
.install{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;background:var(--panel);border:1px dashed var(--accent);border-radius:14px;padding:12px 14px}
.install b{display:block}
.install span{color:var(--muted);font-size:14px}
.foot{margin-top:26px;text-align:center;color:var(--muted);font-size:13.5px}
.foot p{margin:4px 0}
.foot a{color:var(--muted)}

/* ---------- game ---------- */
#game{position:fixed;inset:0;overflow:hidden;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;touch-action:none}
#court{position:absolute;inset:0;display:flex}
.half{flex:1;position:relative;display:flex;flex-direction:column;align-items:center;justify-content:space-between;color:#fff;
  padding:calc(12px + env(safe-area-inset-top)) 16px calc(14px + env(safe-area-inset-bottom));overflow:hidden;transition:filter .2s}
.half.glow .score{text-shadow:0 0 18px currentColor,0 0 42px currentColor}.half.glow .slot{text-shadow:0 0 10px currentColor}
.half.glow .pips i{border-color:currentColor}.half.glow .pips i.on{background:currentColor}
/* court lines, like looking down on a court */
.half::before{content:"";position:absolute;inset:6% 5%;border:2px solid rgba(255,255,255,.22);pointer-events:none}
.half::after{content:"";position:absolute;top:50%;height:2px;background:rgba(255,255,255,.22);pointer-events:none}
#halfL::after{left:5%;right:34%} #halfR::after{left:34%;right:5%}
#halfL::before{border-right:0} #halfR::before{border-left:0}
#court::after{content:"";position:absolute;left:50%;top:3%;bottom:3%;width:4px;margin-left:-2px;background:repeating-linear-gradient(180deg,rgba(255,255,255,.75) 0 6px,transparent 6px 10px);pointer-events:none}
.half.flash{animation:flash .45s ease-out}
@keyframes flash{0%{filter:brightness(1.6)}100%{filter:brightness(1)}}
.slot{position:relative;z-index:1;display:flex;align-items:center;gap:.35em;min-height:1.25em;font:800 clamp(18px,5.4vh,40px)/1.2 var(--num);letter-spacing:.04em;text-transform:uppercase;white-space:nowrap;max-width:100%}
.half .slot{max-width:calc(100% - 100px)}
.slot{text-shadow:0 2px 8px rgba(0,0,0,.45)}
.slot .nm{overflow:hidden;text-overflow:ellipsis}
.slot svg{width:1.05em;height:1.05em;flex:none;color:#fff;filter:drop-shadow(0 1px 2px rgba(0,0,0,.3))}
.slot.serving{color:#fff}
.slot.dim{opacity:.72}
.score{position:relative;z-index:1;font:800 min(46vh,23vw)/.9 var(--num);font-variant-numeric:tabular-nums;letter-spacing:-.02em;text-shadow:0 3px 14px rgba(0,0,0,.35)}
.meta{position:relative;z-index:1;display:flex;align-items:center;gap:10px;font:700 clamp(12px,3vh,17px)/1 ui-sans-serif,system-ui,sans-serif;letter-spacing:.06em;text-transform:uppercase;opacity:.92}
.pips{display:flex;gap:6px}
.pips i{width:12px;height:12px;border-radius:50%;border:2px solid #fff;display:block;box-shadow:0 1px 4px rgba(0,0,0,.4)}
.pips i.on{background:#fff}
.hint{position:absolute;z-index:1;bottom:calc(10px + env(safe-area-inset-bottom));padding:5px 10px;border-radius:99px;background:rgba(0,0,0,.22);font:800 clamp(12px,3vh,16px)/1 ui-sans-serif,system-ui,sans-serif;letter-spacing:.03em}
#halfL .hint{left:calc(14px + env(safe-area-inset-left))} #halfR .hint{right:calc(14px + env(safe-area-inset-right))}
.pswap{position:absolute;z-index:2;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:0;background:rgba(0,0,0,.18);color:#fff;font-size:22px;line-height:1;cursor:pointer}
#halfL .pswap{left:calc(8px + env(safe-area-inset-left))} #halfR .pswap{right:calc(8px + env(safe-area-inset-right))}

#mid{position:absolute;left:50%;transform:translateX(-50%);bottom:calc(14px + env(safe-area-inset-bottom));z-index:3;display:flex;flex-direction:column;align-items:center;gap:4px;pointer-events:none}
#gameNo{background:rgba(14,17,22,.82);color:#fff;border-radius:99px;padding:5px 12px;font:800 13px/1 ui-sans-serif,system-ui,sans-serif;letter-spacing:.08em;text-transform:uppercase}
#past{display:flex;gap:6px;font:700 13px/1 var(--num)}
#past span{background:rgba(14,17,22,.6);color:#fff;border-radius:6px;padding:4px 7px}
#bar{position:absolute;top:calc(8px + env(safe-area-inset-top));left:50%;transform:translateX(-50%);z-index:4;display:flex;gap:6px;background:rgba(14,17,22,.72);padding:5px;border-radius:99px}
#bar button{width:40px;height:40px;border-radius:50%;border:0;background:transparent;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center}
#bar button:active{background:rgba(255,255,255,.15)}
#bar svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}

#pending{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.9);z-index:5;display:flex;flex-direction:column;align-items:center;gap:8px;background:rgba(14,17,22,.86);color:#fff;border-radius:18px;padding:14px 20px;opacity:0;transition:opacity .12s,transform .12s;pointer-events:none}
#pending.on{opacity:1;transform:translate(-50%,-50%) scale(1)}
#pending .dots{display:flex;gap:8px}
#pending .dots i{width:16px;height:16px;border-radius:50%;background:var(--accent);display:block}
#pending .what{font:800 18px/1 ui-sans-serif,system-ui,sans-serif;letter-spacing:.03em;text-transform:uppercase;white-space:nowrap}
#toast{position:absolute;left:50%;top:22%;transform:translate(-50%,0);z-index:6;background:var(--accent);color:#0e1116;font:900 clamp(18px,6vh,34px)/1 ui-sans-serif,system-ui,sans-serif;letter-spacing:.03em;text-transform:uppercase;padding:12px 22px;border-radius:14px;box-shadow:0 8px 30px rgba(0,0,0,.35);opacity:0;transition:opacity .2s;pointer-events:none;white-space:nowrap}
#toast.on{opacity:1}
#banner{position:absolute;inset:0;z-index:6;display:flex;align-items:center;justify-content:center;background:rgba(14,17,22,.55);pointer-events:none}
#banner .card{background:rgba(14,17,22,.94);border:2px solid var(--accent);border-radius:20px;padding:18px 28px;text-align:center;max-width:90vw}
#banner .t1{font:900 clamp(22px,8vh,48px)/1.05 var(--num);text-transform:uppercase;letter-spacing:.02em}
#banner .t2{margin-top:6px;font:800 clamp(16px,5vh,28px)/1.2 var(--num);color:var(--accent)}
#banner .t3{margin-top:10px;color:var(--muted);font-size:clamp(13px,3.2vh,16px)}

/* ---------- sheets ---------- */
.sheet{position:fixed;inset:0;z-index:20;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;padding:12px}
.panel{width:100%;max-width:440px;max-height:calc(100dvh - 24px);overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:16px}
.panel h2{margin:0 0 10px;font-size:19px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:8px 0}
.panel .btn.big{margin-top:8px}

#tester{position:fixed;inset:0;z-index:30;display:flex;background:var(--bg);user-select:none;-webkit-user-select:none;touch-action:none}
.tside{flex:1;display:flex;align-items:flex-start;justify-content:center;padding-top:14px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.5)}
.tside:first-child{background:var(--red-2)} .tside:nth-child(2){background:var(--blue-2)}
.tside.hit{filter:brightness(1.5)}
.tcard{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:min(420px,calc(100% - 32px));background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:16px;text-align:center}
.tcard h2{margin:0 0 4px} .tcard p{margin:0 0 10px;color:var(--muted);font-size:14px}
#tlog{list-style:none;margin:0 0 12px;padding:0;min-height:96px;text-align:left;font-size:14.5px}
#tlog li{padding:6px 10px;border-radius:8px;background:var(--bg);margin-bottom:6px}
#tlog li:first-child{border:1px solid var(--accent)}

/* feedback widget stays out of the way of the remote during play */
body.playing .kkfb-btn,body.playing .kkfb-x{display:none!important}

/* ---------- portrait: stack the two ends ---------- */
@media (orientation:portrait){
  #court{flex-direction:column}
  .half{flex:0 0 50%;min-height:0}
  .score{font-size:min(24vh,44vw)}
  .slot{font-size:clamp(16px,3.4vh,30px)}
  #court::after{left:3%;right:3%;top:50%;bottom:auto;width:auto;height:4px;margin:-2px 0 0;background:repeating-linear-gradient(90deg,rgba(255,255,255,.75) 0 6px,transparent 6px 10px)}
  .half::after{display:none}
  #halfL::before{border:2px solid rgba(255,255,255,.22);border-bottom:0}
  #halfR::before{border:2px solid rgba(255,255,255,.22);border-top:0}
  #halfL .hint,#halfR .hint{top:calc(58px + env(safe-area-inset-top));bottom:auto;left:calc(14px + env(safe-area-inset-left));right:auto}
  #mid{display:none}
  #bar{top:auto;bottom:calc(8px + env(safe-area-inset-bottom))}
  #halfR{padding-top:24px;padding-bottom:calc(64px + env(safe-area-inset-bottom))}
  #halfR .hint{top:44px}
  #tester{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){.half.flash{animation:none}#pending,#toast{transition:none}}

/* ---------- skin picker ---------- */
.panel.wide{max-width:640px}
.panel .wide{width:100%;margin:0 0 4px}
.darkenRow{margin-bottom:14px}
.darkPreview{display:flex;gap:8px;margin-top:8px}
.dpHalf{flex:1;height:64px;border-radius:10px;display:flex;align-items:center;justify-content:center;box-shadow:inset 0 0 0 1px rgba(255,255,255,.15)}
.dpHalf span{font:800 30px/1 var(--num);color:inherit;text-shadow:0 2px 8px rgba(0,0,0,.45)}
.teamseg{margin-bottom:6px}.teamseg button{flex:1}
.swlist h3{margin:12px 0 6px;font-size:13px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.swatches{display:grid;grid-template-columns:repeat(auto-fill,minmax(88px,1fr));gap:8px}
.sw{display:flex;flex-direction:column;align-items:stretch;gap:4px;padding:4px;border-radius:12px;border:2px solid transparent;background:transparent;cursor:pointer}
.sw.on{border-color:var(--accent)}
.sw .tile{height:52px;border-radius:8px;display:flex;align-items:center;justify-content:center;font:800 22px/1 var(--num);box-shadow:inset 0 0 0 1px rgba(255,255,255,.15);background-size:cover}
.sw .nm{font-size:12.5px;color:var(--muted);text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sw.on .nm{color:var(--ink);font-weight:700}
/* names and labels sit on the un-darkened part of pale flags: give them a soft dark outline */
.slot,.meta{-webkit-text-stroke:.14em rgba(0,0,0,.42);paint-order:stroke fill}
.half.glow .slot,.half.glow .meta{-webkit-text-stroke:0}