/* Array Builder Tool Styles */

.back-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-size: var(--text-xl);
  color: var(--color-neutral-600);
  background: white;
  border: 2px solid var(--color-neutral-200);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-out);
}

.back-link:hover {
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

/* Sliders */
.slider {
  width: 120px;
  height: 8px;
  -webkit-appearance: none;
  background: linear-gradient(to right, var(--color-secondary), var(--color-accent-pink));
  border-radius: var(--radius-full);
  outline: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  background: white;
  border: 3px solid var(--color-secondary);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.slider-value {
  font-family: var(--font-secondary);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-primary-dark);
  min-width: 30px;
  text-align: center;
}

/* Array Container */
.array-container {
  display: grid;
  gap: 4px;
  padding: var(--space-4);
  background: linear-gradient(135deg, rgba(0, 201, 201, 0.1), rgba(255, 105, 180, 0.1));
  border-radius: var(--radius-xl);
  border: 3px solid rgba(0, 201, 201, 0.3);
}

/* Array Cells */
.array-cell {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, #00C9C9, #00A3A3);
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.15);
  animation: cellPop 0.2s ease-out;
}

@keyframes cellPop {
  0% { transform: scale(0); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

/* Equation Display */
#rows-display, #cols-display {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-secondary);
}

.total-value {
  font-size: var(--text-3xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-accent-pink);
  margin-left: var(--space-2);
}

/* Mobile */
@media (max-width: 767px) {
  .slider {
    width: 80px;
  }

  .array-cell {
    width: 24px;
    height: 24px;
  }

  .tool-options {
    flex-direction: column;
    gap: var(--space-2);
  }
}