:root{
  /* Calm blue background (from reference) */
  --bg-main:#2f556b;
  --bg-panel:#4f7286;
  --bg-panel-soft:#5f8598;

  /* Text / UI */
  --cream:#fbf7ef;
  --ink:#1c1c1c;
  --shadow:rgba(0,0,0,.18);
  --cardBorder:rgba(255,255,255,.28);

  /* Board sizing */
  --cardSize:clamp(78px,18vw,150px);
  --gap:clamp(.35rem,1.2vw,.65rem);

  /* Wood tones */
  --woodA:#7a4a2f;
  --woodB:#5f381f;
  --woodC:#8a5a3a;

  --tileA:#d7b98b;
  --tileB:#caa171;

  --etch:rgba(0,0,0,.22);
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family:system-ui,sans-serif;
  color:var(--cream);
  background:
    radial-gradient(circle at top, rgba(255,255,255,.08), transparent 55%),
    linear-gradient(var(--bg-panel-soft), var(--bg-main));
}

/* REQUIRED VISIBILITY RULES (DO NOT REMOVE) */
.hidden{display:none!important}
.screen{display:block}

/* TOP BAR */
.topbar{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  padding:12px;
  gap:12px;
}
.brand{display:flex;gap:14px;align-items:flex-start}
.title{margin:0;font-size:1.6rem;color:#fff}
.subtitle{margin:.2rem 0 0;color:rgba(255,255,255,.9)}
.ravenHero{width:96px;border-radius:16px;box-shadow:0 8px 20px rgba(0,0,0,.25)}
.topControls{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* PANELS */
.panel{
  max-width:980px;
  margin:16px auto;
  background:linear-gradient(
    180deg,
    rgba(255,255,255,.14),
    rgba(255,255,255,.06)
  );
  padding:22px;
  border-radius:28px;
  box-shadow:
    0 18px 40px rgba(0,0,0,.25),
    inset 0 1px 0 rgba(255,255,255,.25);
}

.cardPanel{
  background:linear-gradient(
    180deg,
    rgba(255,255,255,.18),
    rgba(255,255,255,.08)
  );
  border-radius:24px;
  padding:24px;
}

.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.field{background:rgba(255,255,255,.2);padding:12px;border-radius:18px}
.row{display:flex;gap:10px;flex-wrap:wrap}
.label{font-weight:600;margin-bottom:6px;display:block;color:#fff}
.select{
  width:100%;
  padding:.6rem;
  border-radius:12px;
  border:1px solid var(--cardBorder);
  background:rgba(255,255,255,.9);
}

/* BUTTONS */
.btn,.pill{
  padding:.65rem 1rem;
  border-radius:999px;
  border:1px solid var(--cardBorder);
  background:rgba(255,255,255,.92);
  color:#1c1c1c;
  cursor:pointer;
  box-shadow:0 8px 18px rgba(0,0,0,.22);
  display:inline-flex;
  align-items:center;
  gap:.4rem;
}
.btn.primary{background:#ffd9a3}
.btn.ghost{background:rgba(255,255,255,.8)}
.pill.active{
  box-shadow:
    0 8px 18px rgba(0,0,0,.22),
    0 0 0 3px rgba(255,217,163,.55);
}
.toggleBtn[aria-pressed="false"]{opacity:.55}

/* STATUS */
.statusWrap{display:flex;justify-content:center;margin-bottom:10px}
.status{text-align:center;color:#fff}
.sr-only{
  position:absolute;
  width:1px;height:1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
}

/* BOARD — wood frame */
.board{
  display:grid;
  grid-template-columns:repeat(3,var(--cardSize));
  gap:var(--gap);
  justify-content:center;
  width:fit-content;
  margin:0 auto;
  padding:calc(var(--gap) * 1.2);
  border-radius:26px;
  background:
    repeating-linear-gradient(90deg,
      rgba(255,255,255,.06) 0 2px,
      rgba(0,0,0,.05) 2px 4px
    ),
    radial-gradient(circle at 20% 30%, rgba(0,0,0,.10), transparent 45%),
    radial-gradient(circle at 75% 60%, rgba(0,0,0,.08), transparent 55%),
    linear-gradient(180deg, var(--woodC), var(--woodA) 45%, var(--woodB));
  box-shadow:
    0 18px 42px rgba(0,0,0,.18),
    inset 0 0 0 2px rgba(255,255,255,.18),
    inset 0 10px 18px rgba(255,255,255,.10),
    inset 0 -12px 18px rgba(0,0,0,.16);
  position:relative;
}

/* Etched grid lines */
.board::after{
  content:"";
  position:absolute;
  inset:calc(var(--gap) * 1.2);
  pointer-events:none;
  background:
    linear-gradient(to right,
      transparent 0 calc(var(--cardSize) + (var(--gap)/2)),
      var(--etch) calc(var(--cardSize) + (var(--gap)/2)) calc(var(--cardSize) + (var(--gap)/2) + 2px),
      transparent calc(var(--cardSize) + (var(--gap)/2) + 2px) calc(2*var(--cardSize) + (3*var(--gap)/2)),
      var(--etch) calc(2*var(--cardSize) + (3*var(--gap)/2)) calc(2*var(--cardSize) + (3*var(--gap)/2) + 2px),
      transparent calc(2*var(--cardSize) + (3*var(--gap)/2) + 2px) 100%
    ),
    linear-gradient(to bottom,
      transparent 0 calc(var(--cardSize) + (var(--gap)/2)),
      var(--etch) calc(var(--cardSize) + (var(--gap)/2)) calc(var(--cardSize) + (var(--gap)/2) + 2px),
      transparent calc(var(--cardSize) + (var(--gap)/2) + 2px) calc(2*var(--cardSize) + (3*var(--gap)/2)),
      var(--etch) calc(2*var(--cardSize) + (3*var(--gap)/2)) calc(2*var(--cardSize) + (3*var(--gap)/2) + 2px),
      transparent calc(2*var(--cardSize) + (3*var(--gap)/2) + 2px) 100%
    );
  opacity:.5;
}

/* CARDS */
.card{width:var(--cardSize);height:var(--cardSize);perspective:1000px}
.card-inner{width:100%;height:100%;transition:transform .45s ease;transform-style:preserve-3d}
.card.flipped .card-inner{transform:rotateY(180deg)}

.face{
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  border-radius:18px; backface-visibility:hidden;
  background:
    linear-gradient(145deg, rgba(255,255,255,.34), rgba(255,255,255,0) 38%),
    linear-gradient(325deg, rgba(0,0,0,.18), rgba(0,0,0,0) 45%),
    linear-gradient(180deg, var(--tileA), var(--tileB));
  box-shadow:
    0 8px 16px rgba(0,0,0,.14),
    inset 0 1px 0 rgba(255,255,255,.42),
    inset 0 -4px 9px rgba(0,0,0,.18);
  border:1px solid rgba(0,0,0,.08);
}
.back{transform:rotateY(180deg)}

/* Burned-in seal */
.card .face:first-child img{
  width:72%;
  opacity:.92;
  filter:sepia(1) saturate(1.5) brightness(.48) contrast(1.4);
  mix-blend-mode:multiply;
}
.card .face.back img{
  width:70%;
  opacity:1;
  filter:none;
}

/* OVERLAY */
.overlay{
  position:fixed;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(15,35,48,.65);
  z-index:9999;
}
.overlay.hidden{display:none}
.overlayCard{
  background:#fff;
  color:#1c1c1c;
  padding:20px;
  border-radius:24px;
  width:min(420px,90vw);
  text-align:center;
  box-shadow:0 22px 48px rgba(0,0,0,.35);
}
.overlayBtns{display:flex;gap:10px;justify-content:center;margin-top:12px}

/* RESPONSIVE */
@media (max-width:540px){
  .grid2{grid-template-columns:1fr}
  .ravenHero{display:none}
}