/* ====== base ====== */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: #444;
  color: #eee;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Hiragino Sans", "Noto Sans JP", sans-serif;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ====== gallery (select screen) ====== */
#gallery {
  margin: 0 auto;
  padding: 20px 12px 8px;
  width: min(860px, 92vw);
}
#gallery .title {
  margin: 0 0 8px;
  font-size: 20px;
  color: #ffd28a;
  letter-spacing: .04em;
}
#gallery .main img {
  border: 4px solid #fff;
  box-shadow: 0 0 14px #000;
  width: 100%;
}
#gallery .main p {
  color: #bbb;
  font-size: 18px;
  font-weight: bold;
  margin: 8px 0 0;
}
#gallery .thumb {
  margin-top: 10px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}
#gallery .thumb img {
  border: 4px solid #fff;
  border-radius: 400px;
  box-shadow: 0 0 10px #000;
  height: 64px;
  width: 64px;
  cursor: pointer;
  transition: transform .15s ease, outline-color .15s ease;
  outline: 3px solid transparent;
}
#gallery .thumb img:hover { transform: translateY(-2px) scale(1.03); }
#gallery .thumb img[aria-selected="true"] {
  outline-color: #6cf;
}

/* ====== game area ====== */
#game {
  margin: 0 auto 24px;
  width: min(860px, 92vw);
  display: grid;
  gap: 10px;
}
.hud {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.hp .label {
  font-weight: 700;
  font-size: 14px;
  display: inline-block;
  min-width: 52px;
  text-align: right;
  margin-right: 8px;
  color: #ddd;
}
.bar {
  display: inline-block;
  vertical-align: middle;
  width: calc(100% - 72px);
  height: 12px;
  background: #222;
  border-radius: 999px;
  overflow: hidden;
  box-shadow: inset 0 0 4px rgba(0,0,0,.6);
}
.bar-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #7cdcff, #2eaaff);
  transition: width .12s linear;
}
.bar-fill.enemy {
  background: linear-gradient(90deg, #ff9aa2, #ff4f6d);
}

#stage {
  width: 100%;
  height: auto;
  background: radial-gradient(ellipse at center, #30353b 0%, #272b30 70%, #202428 100%);
  border: 4px solid #fff;
  box-shadow: 0 0 18px rgba(0,0,0,.7);
  border-radius: 12px;
}

/* ====== overlay & result ====== */
.overlay {
  position: relative;
  margin-top: -64px;
  padding: 10px 14px;
  background: rgba(0,0,0,.45);
  display: inline-block;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: .03em;
}
.overlay.hidden { display: none; }

.controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  color: #ddd;
}
kbd {
  background: #111;
  border: 1px solid #666;
  border-bottom-width: 3px;
  border-radius: 6px;
  padding: 2px 6px;
  font-weight: 700;
  min-width: 22px;
  display: inline-block;
}
.sep { opacity: .6; margin: 0 6px; }
.btn {
  appearance: none;
  border: none;
  background: #ffd28a;
  color: #222;
  font-weight: 800;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 8px 0 #e1b56f;
  transition: transform .07s ease;
}
.btn:active { transform: translateY(2px); box-shadow: 0 6px 0 #e1b56f; }
.hidden { display: none !important; }

.result {
  inset: 0;
  display: grid;
  place-items: center;
  padding-bottom: 32px;
}
.result .card {
  width: min(860px, 92vw);
  background: #2b2f35;
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 0 20px rgba(0,0,0,.6);
  border: 3px solid #fff;
}
.result img {
  width: 100%;
  display: block;
  border-radius: 10px;
  border: 3px solid #fff;
  box-shadow: 0 0 10px #000;
}
.result p {
  font-size: 18px;
  margin: 10px 0 14px;
  color: #ddd;
}

/* small screens */
@media (max-width: 560px) {
  .hud { grid-template-columns: 1fr; }
  #gallery .main p { font-size: 16px; }
}