:root {
  --symbol-font-size: 2rem;
  --grid-gap: 16px;
  --card-padding: 32px;
}

.symbols-panel {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Tabs - Wrapping Layout using Global .category-chip */
.tab-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

/* Emoji Filters - Tags Style (using div to avoid global button conflict) */
.emoji-filter-row {
  display: none;
  gap: 8px;
  padding: 4px; /* Added top/side padding to prevent cutoff */
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  justify-content: center;
}

.emoji-filter-row::-webkit-scrollbar {
  display: none;
}

.emoji-filter-row.is-visible {
  display: flex;
  flex-wrap: wrap; 
}

/* Redesigned Emoji Filter Button (div) */
.symbols-panel .emoji-filter-btn {
  background: var(--surface-2);
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  user-select: none;
}

.symbols-panel .emoji-filter-btn:hover {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border-hover);
  transform: translateY(-2px); /* Increased lift slightly */
  box-shadow: 0 4px 12px rgba(0,0,0,0.1); /* Stronger shadow */
}

.symbols-panel .emoji-filter-btn.is-active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  font-weight: 600;
  box-shadow: 0 4px 10px rgba(var(--primary-rgb, 0, 0, 0), 0.2);
}

/* Grid */
.symbols-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: var(--grid-gap);
  padding: 4px;
}

/* Symbol Card (Keycap Style) - div */
.symbols-panel .symbol-card {
  aspect-ratio: 1/1;
  background: var(--surface-2); 
  border: 1px solid transparent;
  border-radius: 16px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
  user-select: none;
  color: var(--text);
  box-shadow: none;
  font-family: inherit;
}

.symbols-panel .symbol-card:hover {
  transform: translateY(-4px) scale(1.05);
  background: var(--surface);
  border-color: var(--border);
  box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.15);
  z-index: 10;
  color: var(--primary);
}

.symbol-card:active {
  transform: scale(0.92);
  transition: transform 0.1s ease;
}

.symbol-char {
  font-size: var(--symbol-font-size);
  line-height: 1;
  color: var(--text);
  transition: color 0.2s;
}

.symbol-card:hover .symbol-char {
  color: var(--primary);
}

/* Status Text */
.status-text {
  text-align: center;
  padding: 60px 0;
  color: var(--muted);
  font-size: 1.1rem;
  width: 100%;
  grid-column: 1 / -1;
}

/* Responsive */
@media (max-width: 768px) {
  :root {
    --card-padding: 20px;
    --grid-gap: 12px;
  }
  
  .symbols-panel {
    padding: 0 12px;
  }
  
  .symbols-card {
    border-radius: 24px;
    padding: 20px;
  }
  
  .tab-row {
    margin-bottom: 20px;
    gap: 8px;
    justify-content: flex-start; /* Left align on mobile for scroll */
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 12px;
    -webkit-overflow-scrolling: touch;
  }
  
  .tab-row::-webkit-scrollbar {
    display: none;
  }

  .tab-btn {
    padding: 8px 18px;
    font-size: 0.95rem;
    flex-shrink: 0;
  }

  .emoji-filter-row {
    justify-content: flex-start; /* Left align on mobile for scroll */
    flex-wrap: nowrap;
  }

  .symbols-grid {
    grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
    gap: 10px;
  }

  .symbol-char {
    font-size: 1.8rem;
  }
}

/* High Contrast / Light Theme Refinements */
[data-theme="light"] .symbols-card {
  box-shadow: 0 4px 24px rgba(0,0,0,0.04);
  background: #ffffff;
}

[data-theme="light"] .symbol-card {
  background: #f3f4f6;
  border-color: #e5e7eb;
}

[data-theme="light"] .symbol-card:hover {
  background: #ffffff;
  border-color: var(--primary);
}

[data-theme="light"] .tab-btn:hover {
  background: #f3f4f6;
}

/* ✨ Mobile: Center filter buttons */
@media (max-width: 768px) {
  .emoji-filter-row {
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
  }
}