/* X/O - board, marks and side panel */

.xo-stage{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:40px;
  align-items:start;
  margin-top:8px;
}

.xo-board-col{min-width:0}
.xo-status{
  margin:0 0 16px;
  font-family:var(--font-display);
  font-size:clamp(22px,3vw,32px);
  line-height:1.05;
  text-transform:uppercase;
  color:var(--stardust);
}
.xo-status[data-who="cpu"]{color:var(--lavender)}
.xo-status[data-who="win"]{color:var(--pink)}
.xo-status[data-who="lose"]{color:var(--lavender)}

.xo-board-wrap{
  position:relative;
  width:min(100%,560px);
  aspect-ratio:1;
  padding:14px;
  background:#0d0c14;
  border:1px solid rgba(231,228,234,.16);
  box-shadow:8px 8px 0 var(--pink);
}
.xo-board{
  position:absolute;
  inset:14px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  grid-template-rows:repeat(3,1fr);
  gap:10px;
}
.xo-cell{
  position:relative;
  padding:0;
  border:1px solid rgba(231,228,234,.14);
  background:rgba(231,228,234,.03);
  cursor:pointer;
  transition:background .15s ease, border-color .15s ease, opacity .25s ease;
}
.xo-cell:not(.is-filled):hover{
  background:rgba(214,160,164,.08);
  border-color:rgba(214,160,164,.5);
}
.xo-cell:focus-visible{outline:2px solid var(--pink);outline-offset:2px}
.xo-stage.is-cpu-turn .xo-cell{cursor:progress}
.xo-cell svg{display:block;width:100%;height:100%}

/* hover ghost of your mark */
.xo-stage:not(.is-cpu-turn):not(.is-won):not(.is-lost):not(.is-draw) .xo-cell:not(.is-filled):hover::after{
  content:"";
  position:absolute;
  inset:30%;
  border-radius:50%;
  border:3px solid rgba(231,228,234,.18);
}
.xo-stage[data-mark="x"]:not(.is-cpu-turn):not(.is-won):not(.is-lost):not(.is-draw) .xo-cell:not(.is-filled):hover::after{
  border:0;
  border-radius:0;
  background:
    linear-gradient(45deg,transparent 45%,rgba(214,160,164,.28) 45%,rgba(214,160,164,.28) 55%,transparent 55%),
    linear-gradient(-45deg,transparent 45%,rgba(214,160,164,.28) 45%,rgba(214,160,164,.28) 55%,transparent 55%);
}

.xo-x1,.xo-x2{
  fill:none;
  stroke:var(--pink);
  stroke-width:9;
  stroke-linecap:round;
  stroke-dasharray:60;
  stroke-dashoffset:60;
  animation:xoDraw .2s ease forwards;
}
.xo-x2{animation-delay:.12s}
.xo-o{
  fill:none;
  stroke:var(--stardust);
  stroke-width:8;
  stroke-dasharray:145;
  stroke-dashoffset:145;
  transform:rotate(-90deg);
  transform-origin:50% 50%;
  transform-box:view-box;
  animation:xoDraw .32s ease forwards;
}
.xo-moon{
  fill:var(--lavender);
  transform-origin:50% 50%;
  transform-box:view-box;
  animation:xoFade .3s .3s both, xoOrbit 6s linear infinite;
}
@keyframes xoDraw{to{stroke-dashoffset:0}}
@keyframes xoFade{from{opacity:0}to{opacity:1}}
@keyframes xoOrbit{to{transform:rotate(360deg)}}

.xo-stage.is-won .xo-cell:not(.is-win),
.xo-stage.is-lost .xo-cell:not(.is-win){opacity:.32}
.xo-stage.is-won .xo-cell.is-win{background:rgba(214,160,164,.1);border-color:rgba(214,160,164,.6)}

.xo-winline{
  position:absolute;
  inset:14px;
  width:calc(100% - 28px);
  height:calc(100% - 28px);
  pointer-events:none;
  overflow:visible;
}
.xo-winline line{
  stroke:var(--pink);
  stroke-width:9;
  stroke-linecap:round;
  stroke-dasharray:420;
  stroke-dashoffset:420;
  filter:drop-shadow(0 0 10px rgba(214,160,164,.55));
  opacity:0;
}
.xo-stage.is-lost .xo-winline line{stroke:var(--lavender);filter:none}
.xo-winline.show line{opacity:1;animation:xoDraw .35s .1s ease forwards}

/* ---------- panel ---------- */
.xo-panel{
  display:grid;
  gap:22px;
  padding:26px;
  background:rgba(15,14,22,.9);
  border:1px solid rgba(231,228,234,.14);
}
.xo-label{
  display:block;
  margin-bottom:9px;
  font-size:11px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--lavender);
}
.xo-seg{
  display:flex;
  border:1px solid rgba(231,228,234,.22);
}
.xo-seg button{
  flex:1;
  padding:11px 10px;
  background:transparent;
  border:0;
  border-left:1px solid rgba(231,228,234,.14);
  font-family:var(--font-body);
  font-size:13px;
  font-weight:700;
  color:var(--lavender);
  cursor:pointer;
  transition:background .15s ease, color .15s ease;
}
.xo-seg button:first-child{border-left:0}
.xo-seg button:hover{color:var(--stardust)}
.xo-seg button[aria-pressed="true"]{background:var(--pink);color:var(--ink)}
.xo-seg button:focus-visible{outline:2px solid var(--pink);outline-offset:-2px}
.xo-seg-mark button{font-family:var(--font-display);font-size:18px}

.xo-score{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border:1px solid rgba(231,228,234,.12);
}
.xo-score div{padding:12px 10px 14px;text-align:center}
.xo-score div + div{border-left:1px solid rgba(231,228,234,.12)}
.xo-score span{
  display:block;
  font-size:10.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--lavender);
}
.xo-score strong{
  display:block;
  margin-top:4px;
  font-family:var(--font-body);
  font-size:34px;
  font-weight:900;
  line-height:1;
  font-variant-numeric:tabular-nums;
  color:var(--stardust);
}
.xo-score .xo-score-you strong{color:var(--pink)}
.xo-score-meta{
  display:flex;
  justify-content:space-between;
  gap:10px;
  margin-top:10px;
  font-size:12px;
  letter-spacing:.04em;
  color:var(--lavender);
}
.xo-score-meta b{text-transform:capitalize;color:var(--stardust)}

.xo-actions{display:grid;gap:10px}
.xo-actions .btn{width:100%;text-align:center}
.xo-actions .btn[hidden]{display:none}
.xo-foot{
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:12px;
  color:var(--lavender);
}
.xo-icon-btn{
  width:40px;
  height:40px;
  display:grid;
  place-items:center;
  border:1px solid rgba(231,228,234,.22);
  background:transparent;
  color:var(--stardust);
  cursor:pointer;
}
.xo-icon-btn:hover{border-color:var(--pink);color:var(--pink)}
.xo-icon-btn .icon-off{display:none}
.xo-icon-btn.is-muted .icon-on{display:none}
.xo-icon-btn.is-muted .icon-off{display:block}

.pop{animation:xoPop .32s ease}
@keyframes xoPop{0%{transform:scale(1)}40%{transform:scale(1.25)}100%{transform:scale(1)}}

@media(max-width:900px){
  .xo-stage{grid-template-columns:1fr;gap:28px}
  .xo-board-wrap{margin:0 auto}
  .xo-status{text-align:center}
}
@media(max-width:640px){
  .xo-board-wrap{padding:10px;box-shadow:5px 5px 0 var(--pink)}
  .xo-board{inset:10px;gap:8px}
  .xo-winline{inset:10px;width:calc(100% - 20px);height:calc(100% - 20px)}
  .xo-panel{padding:20px}
}
@media(prefers-reduced-motion:reduce){
  .xo-x1,.xo-x2,.xo-o{animation:none;stroke-dashoffset:0}
  .xo-moon{animation:none}
  .xo-winline.show line{animation:none;stroke-dashoffset:0}
  .pop{animation:none}
}