/* Scoped variables so we don't style the page root when embedded */
.app{--bg-card:linear-gradient(180deg,#0b1220,#04101a);--card:#0b1220;--muted:#9aa6b2;--p1:#ef4444;--p2:#facc15}
/* only affect box-sizing inside the app container */
.app, .app *{box-sizing:border-box}
/* All styles scoped to the .app container so the game can be embedded */
.app{max-width:560px;width:100%;margin:0 auto;padding:14px;display:flex;flex-direction:column;gap:10px;font-family:Inter,system-ui,Segoe UI,Roboto,Arial;color:var(--white);min-width:0;flex:0 1 auto}
header{display:flex;flex-direction:column;gap:6px;align-items:center}
h1{margin:0;font-size:1.25rem}
.toolbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:nowrap;
  gap:8px;
  width:100%;
  background:var(--bg-card);
  padding:12px 14px;
  border-radius:14px;
  box-shadow:0 12px 30px rgba(2,6,23,0.36);
  border:1px solid rgba(255,255,255,0.03);
  white-space:nowrap;
}
.toolbar h1{margin:0;font-size:1.1rem;font-weight:900;color:#ffffff;display:flex;align-items:center;gap:10px;text-shadow:0 2px 6px rgba(0,0,0,0.6)}
.toolbar h1::before{content:"";width:34px;height:34px;border-radius:8px;background:linear-gradient(135deg,var(--p1),var(--p2));box-shadow:0 8px 22px rgba(2,6,23,0.45);transform:rotate(8deg)}
.toolbar > div{display:flex;align-items:center;gap:10px}
.toolbar h1{flex:1 1 auto;min-width:0}
.status, .toolbar > div{flex:0 0 auto}
.status{padding:8px 12px;text-align:center;background:rgba(255,255,255,0.03);border-radius:999px;color:var(--muted);min-width:120px;font-weight:700;display:inline-flex;align-items:center;gap:10px;justify-content:center;border:1px solid rgba(255,255,255,0.02)}
.status::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--muted);box-shadow:0 3px 8px rgba(0,0,0,0.5);display:inline-block}
.status.p1::before{background:var(--p1);box-shadow:0 6px 18px rgba(239,68,68,0.25)}
.status.p2::before{background:var(--p2);box-shadow:0 6px 18px rgba(250,204,21,0.25)}

/* make the status chip reflect player colors with good contrast */
.board{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;padding:8px;background:rgba(255,255,255,0.02);border-radius:12px}
.column{display:flex;flex-direction:column-reverse;gap:8px;padding:4px}
.cell{width:100%;aspect-ratio:1/1;border-radius:10px;background:rgba(255,255,255,0.03);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.token{width:78%;height:78%;border-radius:50%;background:transparent;box-shadow:inset 0 -6px 12px rgba(0,0,0,0.6);transition:transform 160ms ease, background 120ms}
.board{display:grid;grid-template-columns:repeat(7,1fr);gap:12px;padding:12px}
.column{display:flex;flex-direction:column-reverse;gap:8px;padding:6px}

/* canvas wrap: responsive square with sensible desktop size */
.canvas-wrap{
  width:clamp(320px,48vmin,560px);
  max-width:100%;
  aspect-ratio:1/1;
  margin:0 auto;
  overflow:visible;
  height:auto;
  display:block;
}

#c4{width:100%;height:100%;display:block;max-width:100%;max-height:100%}

/* ensure the canvas container doesn't overflow short viewports */
@media(max-height:520px){
  .canvas-wrap{max-height:calc(100vh - 120px);aspect-ratio:1/1}
}

/* tokens via canvas; keep small controls below */
.controls{display:none}

/* end modal */
.modal{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(2,6,23,0.45);backdrop-filter:blur(6px);z-index:1200}
.modal.hidden{display:none}
.modal-content{background:linear-gradient(180deg,rgba(8,49,74,0.9),rgba(4,24,38,0.88));padding:18px;border-radius:12px;color:var(--white);text-align:center;min-width:260px;box-shadow:0 18px 40px rgba(2,6,23,0.6);border:1px solid rgba(255,255,255,0.03);backdrop-filter:blur(4px);}
.modal-content.win{background:linear-gradient(180deg,rgba(255,255,255,0.04),rgba(255,255,255,0.02));color:inherit}
.modal-actions{display:flex;gap:8px;justify-content:center;margin-top:12px}
.modal h2{margin:0 0 6px 0}
.modal p{margin:0;color:var(--muted)}

.drop-bounce{transform:translateY(0);} 
.controls{display:flex;justify-content:center}
.btn{padding:8px 14px;border-radius:12px;border:1px solid rgba(255,255,255,0.06);background:linear-gradient(180deg,rgba(255,255,255,0.02),rgba(0,0,0,0.06));color:#e6eef6;font-weight:800;display:inline-flex;align-items:center;gap:8px;cursor:pointer;box-shadow:0 8px 24px rgba(2,6,23,0.28);transition:transform 160ms ease,box-shadow 160ms,background 160ms,filter 160ms}
.btn:hover{transform:translateY(-3px);filter:brightness(1.03);box-shadow:0 18px 36px rgba(2,6,23,0.32)}
.btn:active{transform:translateY(0);box-shadow:0 6px 18px rgba(2,6,23,0.18)}
.btn:focus{outline:none;box-shadow:0 0 0 4px rgba(255,255,255,0.03)}
.btn.primary{background:linear-gradient(90deg,var(--p1),#ff8a45);color:#041018;border-color:rgba(0,0,0,0.12);box-shadow:0 12px 30px rgba(239,68,68,0.12)}
.btn.primary:hover{filter:brightness(0.98)}
.foot{color:var(--muted);text-align:center;font-size:0.9rem}
.p1{color:var(--p1);font-weight:700}
.p2{color:var(--p2);font-weight:700}

@media(min-width:520px){
  .app{padding:18px}
  .cell{border-radius:14px}
}

/* small screens tweak */
@media(max-width:360px){
  .app{padding:8px}
  .board{gap:6px}
}

/* make toolbar compact and wrap on narrow viewports */
@media (max-width:520px){
  .toolbar{padding:8px 10px;gap:8px}
  .toolbar h1{font-size:1rem}
  .toolbar h1{flex:1 1 140px;min-width:0}
  .toolbar > div, .status{flex:0 0 auto}
  .status{min-width:88px;padding:6px 10px}
  .btn{padding:6px 10px;font-size:0.95rem}
}

@media (max-width:360px){
  .toolbar h1{font-size:0.96rem}
  .status{min-width:80px;padding:6px 8px}
  .btn{padding:6px 8px}
}