:root{
  --bg:#05030a;
  --panel:#0f0917;
  --ink:#f2e9ff;
  --muted:#b8a8d8;
  --accent:#b388ff;
  --accent2:#ff4d7d;
  --tile:#140c22;
  --tile2:#1a1030;
  --border:#3a235f;
}

html,body{height:100%}
body{
  margin:0;
  background:
    radial-gradient(900px 650px at 20% 10%, rgba(179,136,255,.18), transparent 55%),
    radial-gradient(850px 650px at 85% 85%, rgba(255,77,125,.12), transparent 55%),
    linear-gradient(180deg, var(--bg), #020109);
  color:var(--ink);
  font-family: ui-serif, Georgia, "Times New Roman", Times, serif;
  display:flex;
  align-items:center;
  justify-content:center;
}

.shell{width:min(980px, calc(100vw - 32px))}
.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:14px;
}
.topbar a{
  color:var(--accent);
  text-decoration:none;
  border:1px solid rgba(179,136,255,.35);
  padding:8px 10px;
  border-radius:12px;
  background:rgba(179,136,255,.08);
}
.topbar h1{
  margin:0;
  font-size:18px;
  letter-spacing:.08em;
  text-transform:uppercase;
}

.panel{
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg, rgba(15,9,23,.82), rgba(15,9,23,.62));
  border-radius:18px;
  padding:16px;
  box-shadow:0 24px 55px rgba(0,0,0,.45);
}

.hud{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom:14px;
  color:var(--muted);
}
.hud strong{color:var(--ink)}
.hud button{
  appearance:none;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
  color:var(--ink);
  padding:10px 12px;
  border-radius:12px;
  cursor:pointer;
}
.hud button:hover{border-color:rgba(255,255,255,.18)}

.board{
  display:grid;
  grid-template-columns: repeat(10, 1fr);
  gap:6px;
}

.tile{
  aspect-ratio: 1 / 1;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg, var(--tile), var(--tile2));
  color:var(--ink);
  cursor:pointer;
  font-size:16px;
  user-select:none;
  position:relative;
}
.tile:hover{border-color:rgba(179,136,255,.30)}
.tile.revealed{
  cursor:default;
  border-color:rgba(255,255,255,.06);
  background:rgba(255,255,255,.03);
}
.tile.flagged::after{
  content:"⚑";
  color:var(--accent2);
  font-size:18px;
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
}
.status{
  margin-top:12px;
  color:rgba(255,255,255,.75);
  font-size:14px;
}