.su-chooser-backdrop {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.7);
  z-index: 9999;
}

.su-chooser-backdrop.is-open {
  display: flex;
}

.su-chooser {
  width: min(1000px, 92vw);
  max-height: 80vh;
  padding: 1.2rem;
  background: var(--bg-gradient);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-strong);
  color: var(--color-accent);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  overflow: hidden;
}

.su-chooser--canvas,
.su-chooser--billboard {
  width: min(1100px, 95vw);
  max-height: 90vh;
  overflow: hidden;
}

.su-chooser__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.su-chooser__title {
  margin: 0;
}

.su-chooser__close {
  appearance: none;
  background: transparent;
  color: var(--color-accent);
  border: none;
  position: absolute;
  top: 8px;
  right: 8px;
  width: auto;
  height: auto;
  font-size: 1.5rem;
  line-height: 1;
  padding: 0;
  cursor: pointer;
}

.su-chooser__helper {
  margin: 0;
  opacity: 0.9;
}

.su-chooser__mobile-hint {
  margin: 0;
  display: none;
  font-weight: 700;
}

.su-chooser__grid {
  --su-chooser-cell-width: 88px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(var(--su-chooser-cell-width), var(--su-chooser-cell-width)));
  gap: 0;
  width: 100%;
  overflow: auto;
  max-height: 60vh;
  justify-content: center;
}

.su-chooser__cell {
  appearance: none;
  border: 0.5px solid var(--color-accent);
  background: rgba(0, 0, 0, 0.15);
  color: var(--color-accent);
  padding: 0.45rem 0.25rem;
  font-size: 1rem;
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
  transition: background 120ms ease, color 120ms ease, box-shadow 120ms ease;
}

.su-chooser__cell:hover,
.su-chooser__cell:focus-visible {
  background: rgba(0, 0, 0, 0.35);
  box-shadow: inset 0 0 0 1px rgba(255, 215, 0, 0.7);
  outline: none;
}

.su-chooser__empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 1rem;
  margin: 0;
}

.square-lookup {
  margin-top: 2rem;
  gap: .5rem;
}

/* Narrow variant with 500px max-width for focused square lookup pages.
   This variant centers the component when needed to align with other centered elements. */
.square-lookup--narrow {
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.square-lookup__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-start;
}

.square-lookup__controls input[type="number"] {
  width: 8rem;
  flex: 0 0 auto;
}

.square-lookup__actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, .3fr));
  gap: 0.5rem;
  flex: 1 1 14rem;
  min-width: 14rem;
  margin-left: 2rem;
}

.square-lookup__controls button,
.square-lookup__submit {
  padding: 0.65rem 1rem;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  cursor: pointer;
  transition: background 120ms ease, transform 120ms ease;
}

.square-lookup__controls button {
  background: rgba(0, 0, 0, 0.25);
}

.square-lookup__controls button:hover,
.square-lookup__submit:hover {
  background: rgba(0, 0, 0, 0.4);
  transform: translateY(-1px);
}

.square-lookup__submit {
  margin-top: 0.75rem;
  width: fit-content;
}

@media (max-width: 600px) {
  .su-chooser__grid {
    --su-chooser-cell-width: 76px;
  }

  .su-chooser__cell {
    font-size: 0.95rem;
    padding: 0.4rem 0.2rem;
  }

  .square-lookup__controls input[type="number"] {
    width: 6.5rem;
  }
}

#square-lookup-billboard {
  max-width: 200px;
}

#square-lookup-choose {
  max-width: 180px;
}

@media (max-width: 700px) {
  .su-chooser__mobile-hint {
    display: block;
    text-align: center;
  }
}

@media (min-width: 900px) {
  .su-chooser--canvas,
  .su-chooser--billboard {
    overflow: scroll;
    scrollbar-gutter: stable;
  }
}

/* Checkbox variant - wider cells */
.su-chooser__grid--checkbox {
  --su-chooser-cell-width: 117px;
}

/* Checkbox cell layout */
.su-chooser__cell--checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: flex-start;
  padding-left: 0.5rem;
}

/* Checked cell - permanent darker background */
.su-chooser__cell--checkbox.su-chooser__cell--checked {
  background: rgba(0, 0, 0, 0.35);
}

/* Checkbox square */
.su-chooser__checkbox {
  width: 18px;
  height: 18px;
  border: 2px solid #ffd700;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
}

/* Pink checkmark when checked */
.su-chooser__checkbox--checked::after {
  content: "✓";
  color: #ff69b4;
  font-weight: bold;
  font-size: 14px;
  line-height: 1;
}

/* Okay button container */
.su-chooser__footer {
  display: flex;
  justify-content: center;
  padding-top: 0.8rem;
}

/* Okay button */
.su-chooser__okay-btn {
  appearance: none;
  padding: 0.6rem 2rem;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.25);
  color: var(--color-accent);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 120ms ease, transform 120ms ease;
}

.su-chooser__okay-btn:hover {
  background: rgba(0, 0, 0, 0.4);
  transform: translateY(-1px);
}

@media (max-width: 600px) {
  .su-chooser__grid--checkbox {
    --su-chooser-cell-width: 100px;
  }
}