/* The pieces that appear on more than one screen: buttons, bars, tiles, chips. */

/* ---------------------------------------------------------------- buttons */

.btn {
  border: 0;
  border-radius: var(--r-pill);
  padding: var(--s3) var(--s5);
  font-weight: 800;
  font-size: var(--fs-md);
  letter-spacing: 0.01em;
  transition: transform var(--t-fast) var(--ease), filter var(--t-fast);
}

.btn:active { transform: translateY(1px) scale(0.985); }

.btn-primary {
  background: linear-gradient(180deg, var(--gold) 0%, var(--gold-deep) 100%);
  color: #241706;
  box-shadow: var(--sh-2), var(--glow-gold);
}

.btn-primary:disabled {
  background: var(--night-600);
  color: var(--bone-mute);
  box-shadow: none;
  cursor: default;
}

.btn-ghost {
  background: var(--glass);
  color: var(--bone);
  border: 1px solid var(--glass-line);
}

.btn-small { padding: var(--s2) var(--s3); font-size: var(--fs-sm); }
.btn.is-disabled { opacity: 0.5; cursor: default; }

.icon-btn {
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-pill);
  background: var(--glass);
  font-size: var(--fs-md);
  line-height: 1;
}

.icon-btn.is-on { border-color: var(--teal); color: var(--teal); }
.lang-btn { width: auto; padding: 0 var(--s3); font-size: var(--fs-xs); font-weight: 800; }

/* ------------------------------------------------------------------- bars */

.hp-bar, .spirit-meter, .charge-track, .topic-bar, .track {
  position: relative;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid var(--glass-line);
  border-radius: var(--r-pill);
}

.hp-bar { height: 10px; }
.spirit-meter { height: 5px; margin-top: 3px; }
.charge-track { height: 8px; flex: 1; }
.track { height: 6px; flex: 1; }

.hp-fill, .spirit-fill, .charge-fill, .track-fill, .topic-fill {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  transition: width var(--t-mid) var(--ease);
}

.hp-fill-hero { background: linear-gradient(90deg, var(--leaf), #8FE3AC); }
.hp-fill-enemy { background: linear-gradient(90deg, var(--crimson-deep), var(--crimson)); }
.spirit-fill { background: linear-gradient(90deg, var(--gold-deep), var(--gold)); box-shadow: var(--glow-gold); }
.track-fill { background: var(--teal); }

.charge-fill { background: linear-gradient(90deg, #6A3B8F, var(--crimson)); }
.charge-fill.is-imminent { animation: pulse-warn 0.5s infinite; }

@keyframes pulse-warn {
  50% { filter: brightness(1.6); }
}

/* An erased element is still in the layout — the boss removes information,
   not the interface, and a bar that vanished would reflow the whole screen. */
.is-erased {
  filter: grayscale(1) brightness(0.4);
  opacity: 0.35;
}

/* ------------------------------------------------------------- answer tiles */

.tile-bank {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s2);
}

.tile {
  min-height: 3.25rem;
  padding: var(--s3);
  display: grid;
  place-items: center;
  text-align: center;
  border: 2px solid var(--glass-line);
  border-radius: var(--r-md);
  background: var(--night-700);
  color: var(--bone);
  font-size: var(--fs-md);
  transition: border-color var(--t-fast), transform var(--t-fast) var(--ease),
              box-shadow var(--t-fast);
}

.tile:active { transform: scale(0.97); }

.tile.is-picked {
  border-color: var(--gold);
  box-shadow: var(--glow-gold);
}

.tile:disabled { opacity: 0.55; cursor: default; }

.tile.is-gone {
  opacity: 0.12;
  text-decoration: line-through;
}

.numeric-wrap { display: flex; justify-content: center; }

.numeric-input {
  width: min(14rem, 100%);
  padding: var(--s3);
  text-align: center;
  font-size: var(--fs-xl);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--bone);
  background: var(--night-700);
  border: 2px solid var(--glass-line);
  border-radius: var(--r-md);
}

.numeric-input:focus { border-color: var(--teal); outline: none; }

.match-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s2); }
.match-col { display: grid; gap: var(--s2); }
.match-badge {
  position: absolute;
  top: 4px; right: 6px;
  font-size: var(--fs-xs);
  color: var(--teal);
  font-weight: 800;
}
.match-col .tile { position: relative; }
.match-col .tile.is-active { border-color: var(--teal); }
.match-col .tile.is-paired { border-color: var(--gold); }

/* ------------------------------------------------------------------ chips */

.count {
  display: inline-flex;
  align-items: center;
  gap: var(--s1);
  padding: var(--s1) var(--s2);
  border-radius: var(--r-pill);
  background: var(--glass);
  border: 1px solid var(--glass-line);
  font-weight: 800;
  font-size: var(--fs-sm);
}

.count-icon { width: 18px; height: 18px; }

.stars { display: inline-flex; gap: 2px; }
.star { color: var(--night-600); font-size: var(--fs-sm); }
.star.is-on { color: var(--gold); text-shadow: var(--glow-gold); }
.stars-lg .star { font-size: var(--fs-xl); }

.phase-badge {
  margin-left: var(--s2);
  padding: 0 var(--s2);
  border-radius: var(--r-pill);
  background: var(--violet-900);
  border: 1px solid var(--crimson);
  color: var(--crimson);
  font-size: var(--fs-xs);
  font-weight: 800;
}