:root{
  --g:#00FF88;
  --y:#FFD60A;
  --b:#000000;
  --w:#FFFFFF;

  --text:rgba(255,255,255,0.92);
  --muted:rgba(255,255,255,0.72);
  --muted2:rgba(255,255,255,0.58);

  --panel:rgba(255,255,255,0.05);
  --border:rgba(255,255,255,0.10);
  --grid:rgba(255,255,255,0.07);

  --shadow:0 18px 50px rgba(0,0,0,0.55);
  --radius:14px;

  --sans:Inter, Manrope, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", sans-serif;
  --mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono","Courier New", monospace;
}

*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--text);
  background:
    radial-gradient(900px 600px at 20% 10%, rgba(0,255,136,0.10), transparent 60%),
    radial-gradient(800px 550px at 85% 15%, rgba(255,214,10,0.06), transparent 62%),
    radial-gradient(1000px 700px at 55% 90%, rgba(0,255,136,0.06), transparent 60%),
    linear-gradient(180deg, #050607 0%, #000000 60%, #040506 100%);
  overflow-x:hidden;
}

.bgGlow{
  position:fixed;
  inset:-40vh -40vw;
  background:
    radial-gradient(700px 420px at 25% 20%, rgba(0,255,136,0.12), transparent 60%),
    radial-gradient(600px 380px at 75% 35%, rgba(0,255,136,0.08), transparent 62%),
    radial-gradient(650px 420px at 55% 85%, rgba(255,214,10,0.07), transparent 60%);
  filter:blur(28px);
  opacity:.85;
  pointer-events:none;
  animation:floatGlow 8s ease-in-out infinite;
}
@keyframes floatGlow{
  0%,100%{transform:translate3d(0,0,0);}
  50%{transform:translate3d(0,-14px,0);}
}

.shell{
  min-height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
}

.panel,.heroCard,.modalCard{
  background:linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.04));
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);
}

.panel{
  padding:14px;
  position:relative;
  overflow:hidden;
}
.panel:before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--radius);
  pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(0,255,136,0.10);
  opacity:.9;
}

.panelHeader{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;}
.panelTitleRow{display:flex;align-items:center;gap:10px;}
.panelTitle{
  font-weight:800;
  letter-spacing:.12em;
  text-transform:uppercase;
  font-size:12px;
  color:rgba(255,255,255,0.90);
}

.panelChip{
  font-weight:800;
  font-size:11px;
  letter-spacing:.10em;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,0.10);
  background:rgba(0,0,0,0.25);
}
.panelChip.green{
  border-color:rgba(0,255,136,0.26);
  box-shadow:0 0 18px rgba(0,255,136,0.12);
  color:rgba(0,255,136,0.95);
}
.panelChip.yellow{
  border-color:rgba(255,214,10,0.30);
  box-shadow:0 0 18px rgba(255,214,10,0.10);
  color:rgba(255,214,10,0.95);
}

.mutedSmall{color:var(--muted2);font-size:12px;line-height:1.5;}

.btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 16px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,0.14);
  background:rgba(0,0,0,0.28);
  color:rgba(255,255,255,0.92);
  cursor:pointer;
  font-weight:850;
  letter-spacing:.10em;
  text-transform:uppercase;
  user-select:none;
  transition:transform 200ms ease, box-shadow 220ms ease, border-color 220ms ease, background 220ms ease;
  text-decoration:none;
}
.btn .btnGlow{
  position:absolute;
  inset:-2px;
  border-radius:999px;
  pointer-events:none;
  opacity:0;
  transition:opacity 200ms ease;
  filter:blur(8px);
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0) scale(0.99);}
.btn:focus-visible{outline:2px solid rgba(0,255,136,0.6);outline-offset:3px;}
.btn.primary{
  border-color:rgba(0,255,136,0.35);
  box-shadow:0 0 22px rgba(0,255,136,0.12);
}
.btn.primary .btnGlow{
  background:radial-gradient(60% 60% at 50% 50%, rgba(0,255,136,0.32), transparent 70%);
}
.btn.secondary{
  border-color:rgba(255,214,10,0.40);
  box-shadow:0 0 18px rgba(255,214,10,0.10);
}
.btn.secondary .btnGlow{
  background:radial-gradient(60% 60% at 50% 50%, rgba(255,214,10,0.26), transparent 70%);
}
.btn.ghost{
  border-color:rgba(255,255,255,0.16);
  background:rgba(255,255,255,0.04);
}
.btn:hover .btnGlow{opacity:1;}

.label{
  display:block;
  font-size:11px;
  font-weight:850;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:rgba(255,255,255,0.70);
  margin:10px 0 6px;
}
.input{
  width:100%;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,0.14);
  background:rgba(0,0,0,0.28);
  color:rgba(255,255,255,0.92);
  outline:none;
  transition:border-color 200ms ease, box-shadow 200ms ease;
}
.input:focus{
  border-color:rgba(0,255,136,0.55);
  box-shadow:0 0 0 3px rgba(0,255,136,0.12);
}
.input::placeholder{color:rgba(255,255,255,0.40);}

.banner{
  margin:10px 0 12px;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,0.12);
  background:rgba(0,0,0,0.22);
  color:rgba(255,255,255,0.92);
}
.banner.danger{
  border-color:rgba(255,214,10,0.45);
  background:linear-gradient(90deg, rgba(255,214,10,0.22), rgba(0,0,0,0.20));
}

/* Landing */
.heroCard{width:min(980px,96vw);padding:18px;}
.heroHead{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:10px;}
.brand{display:flex;align-items:center;gap:12px;}
.brandMark{
  width:72px;height:72px;
  border-radius:18px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg, rgba(0,255,136,0.18), rgba(255,214,10,0.10));
  border:1px solid rgba(0,255,136,0.30);
  box-shadow:0 0 24px rgba(0,255,136,0.14);
  overflow:hidden;
}
.brandMark.sm{width:44px;height:44px;border-radius:14px;}
.logoImg{width:100%;height:100%;object-fit:cover;display:block;}
.logoImg.sm{width:100%;height:100%;object-fit:cover;display:block;}

.brandText .brandTitle{
  font-weight:900;
  letter-spacing:.14em;
  text-transform:uppercase;
  font-size:13px;
}
.brandText .brandTitle.sm{font-size:12px;}
.brandText .brandSub{
  margin-top:3px;
  color:rgba(255,255,255,0.60);
  font-size:12px;
  letter-spacing:.10em;
  text-transform:uppercase;
}
.brandText .brandSub.sm{font-size:11px;}

.heroLine{
  flex:1;height:1px;
  background:linear-gradient(90deg, transparent, rgba(0,255,136,0.55), transparent);
  box-shadow:0 0 18px rgba(0,255,136,0.20);
}

.heroCopy{
  padding:14px 14px 8px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,0.10);
  background:rgba(0,0,0,0.18);
}
.heroH1{margin:0 0 8px;font-size:28px;letter-spacing:.08em;text-transform:uppercase;}
.heroP{margin:0;color:rgba(255,255,255,0.84);line-height:1.6;}

.twoCol{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px;}
@media (max-width:860px){.twoCol{grid-template-columns:1fr;}}

.panelDesc{margin:0 0 8px;color:rgba(255,255,255,0.72);font-size:13px;line-height:1.55;}

/* Game */
.topbar{
  position:sticky;top:0;z-index:20;
  padding:14px 16px 10px;
  background:rgba(0,0,0,0.38);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,0.06);
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:10px;
}
.topNeonLine{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg, transparent, rgba(0,255,136,0.65), transparent);
  box-shadow:0 0 22px rgba(0,255,136,0.25);
}
.topLeft{justify-self:start;}
.topCenter{justify-self:center;display:flex;gap:10px;align-items:center;flex-wrap:wrap;}
.topRight{justify-self:end;display:flex;gap:10px;align-items:center;}
.brandMini{display:flex;align-items:center;gap:10px;}

.roomPill,.connPill{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,0.12);
  background:rgba(0,0,0,0.22);
}
.roomLabel{
  font-size:11px;font-weight:900;letter-spacing:.14em;
  text-transform:uppercase;color:rgba(255,255,255,0.66);
}
.roomCode{
  font-family:var(--mono);
  font-weight:900;
  letter-spacing:.14em;
  color:rgba(0,255,136,0.95);
  text-shadow:0 0 18px rgba(0,255,136,0.25);
}
.connDot{width:10px;height:10px;border-radius:999px;background:rgba(255,255,255,0.25);}
.connText{font-size:11px;font-weight:900;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,0.74);}

.gameShell{padding:16px;max-width:1200px;margin:0 auto;}
.gameGrid{
  display:grid;
  grid-template-columns:380px 1fr;
  grid-template-rows:auto auto;
  gap:14px;
  align-items:start;
}
@media (max-width:980px){
  .gameGrid{grid-template-columns:1fr;grid-template-rows:auto auto auto;}
}
.boardPanel{grid-row:1 / span 2;padding:14px;}
.boardWrap{
  position:relative;
  padding:12px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,0.10);
  background:rgba(0,0,0,0.18);
  overflow:hidden;
  touch-action:none;
}
.boardWrap::before{
  content:"";
  position:absolute;
  inset:-20px;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size:22px 22px;
  opacity:.30;
  transform:translate3d(var(--px,0px), var(--py,0px), 0);
  transition:transform 240ms ease;
  pointer-events:none;
}
.boardWrap::after{
  content:"";
  position:absolute;
  inset:-30px;
  background:radial-gradient(420px 420px at 50% 30%, rgba(0,255,136,0.10), transparent 60%);
  filter:blur(10px);
  opacity:.85;
  transform:translate3d(calc(var(--px,0px)*0.6), calc(var(--py,0px)*0.6), 0);
  transition:transform 240ms ease;
  pointer-events:none;
}
#board{
  position:relative;
  z-index:1;
  display:block;
  border-radius:12px;
  width:100%;
  height:auto;
  aspect-ratio:1 / 2;
  touch-action:none;
}

.sideStack{display:flex;flex-direction:column;gap:14px;}
.statsRow{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
@media (max-width:520px){.statsRow{grid-template-columns:1fr;}}
.statCard{padding:16px;}
.statK{
  font-size:11px;font-weight:900;letter-spacing:.14em;
  text-transform:uppercase;color:rgba(255,255,255,0.66);
}
.statV{margin-top:8px;font-size:26px;font-weight:900;letter-spacing:.06em;}
.glowGreen{color:rgba(0,255,136,0.95);text-shadow:0 0 18px rgba(0,255,136,0.22);}

.shareHint{margin-top:10px;color:rgba(255,255,255,0.72);font-size:12px;line-height:1.45;}
.shareHint .hash{color:rgba(0,255,136,0.95);text-shadow:0 0 18px rgba(0,255,136,0.22);font-weight:900;}

.oppCard{padding:14px;}
.oppWrap{padding:12px;border-radius:14px;border:1px solid rgba(255,255,255,0.10);background:rgba(0,0,0,0.18);}
#opp{display:block;border-radius:12px;}

.infoCard{padding:14px;}
.infoHead{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.dividerY{
  flex:1;height:1px;
  background:linear-gradient(90deg, rgba(255,214,10,0.70), transparent);
  box-shadow:0 0 18px rgba(255,214,10,0.12);
  opacity:.85;
}

.controlsCard{grid-column:1 / -1;padding:14px;}
.controlsGrid{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px;}
.keyBtn{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,0.12);
  background:rgba(0,0,0,0.20);
  color:rgba(255,255,255,0.88);
}
.keyBtn.wide{padding-right:16px;}
.keycap{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:34px;height:30px;padding:0 10px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,0.14);
  background:rgba(255,255,255,0.06);
  font-family:var(--mono);
  font-weight:900;
  color:rgba(255,255,255,0.88);
}
.keycap.wide{min-width:74px;}
.keyText{
  font-weight:900;letter-spacing:.10em;
  text-transform:uppercase;font-size:11px;
  color:rgba(255,255,255,0.76);
}


/* Toast (yellow) */
.toast{
  position:fixed;
  top:16px;left:50%;
  transform:translateX(-50%);
  z-index:30;
  width:min(860px,92vw);
  pointer-events:none;
  transition:opacity 220ms ease, transform 220ms ease;
}
.toast.hidden{opacity:0;transform:translateX(-50%) translateY(-8px);}
.toastInner{
  pointer-events:auto;
  display:flex;align-items:center;gap:12px;
  padding:12px 14px;
  border-radius:16px;
  border:1px solid rgba(0,0,0,0.30);
  background:linear-gradient(90deg, rgba(255,214,10,0.95), rgba(255,214,10,0.80));
  color:rgba(0,0,0,0.92);
  box-shadow:0 16px 40px rgba(0,0,0,0.45);
}
.toastTitle{font-weight:950;letter-spacing:.14em;text-transform:uppercase;font-size:12px;white-space:nowrap;}
.toastBody{flex:1;font-weight:650;opacity:.92;line-height:1.45;}
.toastBtn{
  border:1px solid rgba(0,0,0,0.22);
  background:rgba(0,0,0,0.12);
  color:rgba(0,0,0,0.92);
  border-radius:999px;
  padding:10px 12px;
  font-weight:900;
  letter-spacing:.10em;
  text-transform:uppercase;
  cursor:pointer;
}

/* Modal */
.modal{
  position:fixed;inset:0;
  z-index:40;
  display:grid;place-items:center;
  background:rgba(255,214,10,0.14);
  backdrop-filter:blur(10px);
  animation:modalFade 240ms ease;
}
@keyframes modalFade{from{opacity:0;}to{opacity:1;}}
.modal.hidden{display:none;}

.modalCard{
  width:min(860px,92vw);
  padding:18px;
  border-radius:18px;
  border:1px solid rgba(255,214,10,0.30);
  background:linear-gradient(180deg, rgba(0,0,0,0.65), rgba(0,0,0,0.38));
  box-shadow:0 22px 60px rgba(0,0,0,0.55);
  max-height:82vh;
  overflow:auto;
}
.modalTitle{
  font-weight:950;
  letter-spacing:.14em;
  text-transform:uppercase;
  font-size:14px;
  color:rgba(255,214,10,0.95);
}
.modalBody{margin-top:10px;color:rgba(255,255,255,0.90);line-height:1.6;font-size:15px;}
.modalQuote{
  margin-top:12px;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid rgba(255,214,10,0.30);
  background:rgba(0,0,0,0.22);
  color:rgba(255,255,255,0.90);
  line-height:1.6;
}
.modalActions{display:flex;justify-content:flex-end;gap:10px;margin-top:14px;flex-wrap:wrap;}
.hidden{display:none;}

@media (max-width:860px){
  .topbar{
    grid-template-columns:1fr;
    justify-items:center;
    gap:8px;
    padding:10px 12px;
  }
  .topLeft,.topCenter,.topRight{justify-self:center;}
  .topRight{flex-wrap:wrap;justify-content:center;}
  .gameShell{padding:12px;}
}

@media (max-width:720px){
  .gameGrid{grid-template-columns:1fr;gap:12px;}
  .boardPanel{grid-row:auto;padding:12px;}
  .boardWrap{padding:10px;}
  .sideStack{gap:12px;}
  .controlsCard{padding:12px;}
  .keyBtn{flex:1 1 44%;justify-content:center;}
  .keyBtn.wide{flex:1 1 100%;}
}

@media (max-width:520px){
  .gameGrid{
    grid-template-columns:minmax(0,1fr) minmax(0,120px);
    grid-template-areas:
      "board opp"
      "stats stats"
      "info info"
      "controls controls";
  }
  .boardPanel{grid-area:board;}
  .oppCard{grid-area:opp;}
  .controlsCard{grid-area:controls;}
  .sideStack{display:contents;}
  .statsRow{grid-area:stats;}
  .infoCard{grid-area:info;}
  .roomPill,.connPill{padding:8px 10px;}
  .panelTitle{font-size:11px;}
  .statV{font-size:22px;}
  .boardWrap{width:100%;margin:0 auto;}
  #opp{width:100%;height:auto;aspect-ratio:1 / 2;}
  .oppWrap{padding:10px;}
  .toastInner{flex-direction:column;align-items:flex-start;}
  .toastBtn{width:100%;text-align:center;}
}

@media (max-width:380px){
  .brandText .brandTitle{font-size:11px;}
  .brandText .brandSub{font-size:10px;}
  .btn{padding:10px 12px;font-size:11px;}
  .roomCode{font-size:12px;}
  .keycap{min-width:30px;height:28px;}
}