/* Periodic Table — page-specific styles */

.pt-page { max-width: 1200px; }

.pt-table-wrap { overflow-x: auto; padding-bottom: 0.5rem; }

.pt-grid {
  display: grid;
  grid-template-columns: repeat(18, minmax(2.6rem, 1fr));
  grid-template-rows: repeat(7, auto) 0.55rem repeat(2, auto);
  gap: 3px;
  min-width: 52rem;
}

.pt-el {
  aspect-ratio: 1;
  border: none;
  border-radius: 5px;
  padding: 2px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  line-height: 1.05;
  cursor: pointer;
  color: #23303d;
  overflow: hidden;
  transition: transform 0.1s, box-shadow 0.15s;
}

.pt-el:hover:not(.is-hidden) { transform: scale(1.12); z-index: 2; box-shadow: 0 3px 10px rgba(0,0,0,0.28); }
.pt-el:focus-visible { outline: 3px solid var(--color-coral); outline-offset: 1px; z-index: 3; }

.pt-z { font-family: var(--font-body); font-size: 0.5rem; opacity: 0.72; }
.pt-sym { font-family: var(--font-display); font-weight: 700; font-size: 0.95rem; }
.pt-name { font-family: var(--font-body); font-size: 0.42rem; opacity: 0.78; text-align: center;
           overflow: hidden; text-overflow: ellipsis; max-width: 100%; white-space: nowrap; }

.pt-el.is-selected { box-shadow: 0 0 0 3px var(--color-text); z-index: 2; }
.pt-el.is-answer { box-shadow: 0 0 0 3px var(--color-green); z-index: 2; }
.pt-el.is-out { opacity: 0.32; }
.pt-el.is-hidden { background: #e6ddcf !important; color: transparent; cursor: pointer; }

.pt-el--marker {
  background: #efe7db;
  color: var(--color-text-muted);
  font-family: var(--font-display);
  font-size: 0.55rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  cursor: default;
}

/* Legend */
.pt-legend {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.9rem;
  justify-content: center;
  margin: 0.9rem 0;
}

.pt-key { display: flex; align-items: center; gap: 0.35rem; font-size: 0.8rem; color: var(--color-text-muted); }
.pt-swatch { width: 0.85rem; height: 0.85rem; border-radius: 3px; display: block; }

/* Detail card */
.pt-detail {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: var(--color-bg);
  border: 2px dashed #e8e2d8;
  border-radius: var(--radius-sm);
  padding: 1rem;
  min-height: 5.5rem;
}

.pt-detail-hint { color: var(--color-text-muted); }

.pt-badge {
  flex: 0 0 auto;
  width: 4.5rem;
  height: 4.5rem;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #23303d;
}

.pt-badge .pt-z { font-size: 0.7rem; }
.pt-badge-sym { font-family: var(--font-display); font-weight: 700; font-size: 1.8rem; line-height: 1; }

.pt-detail h3 { font-family: var(--font-display); font-size: 1.25rem; margin-bottom: 0.15rem; }
.pt-where { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 0.4rem; }
.pt-note { color: var(--color-text); }

/* Quiz */
.pt-quiz {
  background: #f2fbf3;
  border: 3px dashed var(--color-green);
  border-radius: var(--radius-sm);
  padding: 1rem;
  margin-bottom: 1rem;
}

.pt-prompt {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1rem, 3.5vw, 1.25rem);
  text-align: center;
  margin-bottom: 0.75rem;
}

.pt-choices { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem; }

.pt-choice {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  padding: 0.7rem 1.4rem;
  border: 2px solid #cfe8d4;
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--color-text);
  cursor: pointer;
  transition: transform 0.12s, border-color 0.15s;
}

.pt-choice:hover, .pt-choice:focus-visible {
  transform: translateY(-2px);
  border-color: var(--color-green);
  outline: none;
}

.pt-entry { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; }

#pt-input {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  padding: 0.6rem 0.9rem;
  border: 2px solid #cfe8d4;
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--color-text);
  min-width: 9rem;
  max-width: 14rem;
}

#pt-input:focus-visible { outline: none; border-color: var(--color-green); }

.pt-modes .option-buttons { max-width: 34rem; }

@media (max-width: 640px) {
  .pt-detail { flex-direction: column; align-items: center; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  .pt-el, .pt-choice { transition: none; }
}