/* ==========================================================================
   u7777 game — Slot gallery page
   Filter toolbar · category tabs · search · responsive card grid
   ========================================================================== */

.filter-bar {
  position: sticky;
  top: var(--header-h);
  z-index: var(--z-sticky);
  padding-block: var(--sp-4);
  margin-bottom: var(--sp-5);
  background: rgba(10, 14, 26, 0.93);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--color-border);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}

/* Category tabs — wrap on desktop, swipe horizontally on narrow screens */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  min-width: 0;
  flex: 1 1 480px;
  padding-bottom: 0.3rem;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.filter-tabs::-webkit-scrollbar { display: none; }

.filter-tab {
  flex: none;
  padding: 0.58rem 1.05rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--color-border);
  background: rgba(19, 26, 46, 0.85);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text-secondary);
  white-space: nowrap;
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease),
              background-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease-out);
}
.filter-tab:hover { border-color: var(--color-slate-light); color: var(--color-text-primary); transform: translateY(-1px); }
.filter-tab.is-active,
.filter-tab[aria-selected="true"] {
  border-color: rgba(212, 175, 55, 0.6);
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.2), rgba(212, 175, 55, 0.06));
  color: var(--color-accent);
  box-shadow: var(--shadow-glow-gold);
}

.search-field {
  position: relative;
  flex: 0 1 268px;
  min-width: 190px;
}
.search-field svg {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}
.search-field input {
  width: 100%;
  padding: 0.7rem 0.9rem 0.7rem 2.4rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--color-border);
  background: rgba(19, 26, 46, 0.9);
  color: var(--color-text-primary);
  font-size: var(--fs-sm);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.search-field input::placeholder { color: var(--color-text-muted); }
.search-field input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-glow-gold);
}

.result-count {
  width: 100%;
  margin: 0;
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Card grid */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 168px), 1fr));
  gap: clamp(0.75rem, 0.6rem + 0.6vw, 1.15rem);
}

.games-empty {
  padding: var(--sp-8) var(--sp-5);
  text-align: center;
  border: 1px dashed var(--color-border);
  border-radius: var(--r-lg);
  color: var(--color-text-muted);
}

.games-more { display: flex; justify-content: center; margin-top: var(--sp-6); }

/* Glossary definition list */
.glossary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 290px), 1fr));
  gap: var(--sp-4);
  margin: 0;
}
.glossary > div {
  padding: var(--sp-4) var(--sp-5);
  border-radius: var(--r-md);
  border: 1px solid var(--color-border);
  background: var(--gradient-surface);
  transition: border-color var(--t-mid) var(--ease);
}
.glossary > div:hover { border-color: rgba(212, 175, 55, 0.45); }
.glossary dt {
  margin-bottom: 0.35rem;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-accent);
}
.glossary dd { margin: 0; font-size: var(--fs-sm); line-height: 1.7; }

@media (max-width: 768px) {
  .filter-bar { position: static; }
  .filter-tabs { flex-wrap: nowrap; overflow-x: auto; }
  .games-grid { grid-template-columns: repeat(auto-fill, minmax(min(100%, 150px), 1fr)); }
  .search-field { flex: 1 1 100%; }
}

/* Phones: two wide, sparse columns read as oversized tiles. A tight, fixed
   3-column grid reads as a proper app catalogue instead. */
@media (max-width: 520px) {
  .games-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.55rem;
  }
  .game-card__body { padding: 0.5rem 0.55rem 0.6rem; }
  .game-card__name { font-size: 0.72rem; }
  .game-card__meta { font-size: 0.62rem; }
  .game-card__tag { font-size: 0.56rem; padding: 0.16rem 0.4rem; top: 0.4rem; left: 0.4rem; }
  .game-card__play {
    padding: 0.42rem 0.75rem;
    font-size: 0.68rem;
  }
}

/* Only true tiny-phone widths (iPhone SE/5-class, ~320px) fall back to two
   columns — 3 columns of ~95px still reads fine down to 340px. */
@media (max-width: 340px) {
  .games-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.6rem; }
  .game-card__body { padding: 0.6rem 0.7rem 0.7rem; }
  .game-card__name { font-size: 0.78rem; }
  .game-card__meta { font-size: 0.68rem; }
}